Merge remote branch 'upstream/gallium-0.1' into nouveau-gallium-0.1

120 files changed, 7641 insertions, 3863 deletions

diff --git a/SConstruct b/SConstruct
index 6e166502f8..fe27ceafe7 100644
--- a/SConstruct
+++ b/SConstruct
@@ -53,7 +53,7 @@ opts.Add(ListOption('winsys', 'winsys drivers to build', default_winsys,
 env = Environment(
 	options = opts,
 	tools = ['gallium'],
-	toolpath = ['scons'],	
+	toolpath = ['#scons'],	
 	ENV = os.environ,
 )
 
diff --git a/bin/mklib b/bin/mklib
index e17e2fee0b..031e049c61 100755
--- a/bin/mklib
+++ b/bin/mklib
@@ -246,7 +246,7 @@ case $ARCH in
 	    if [ $EXPORTS ] ; then
 		#OPTS="${OPTS} -Xlinker --retain-symbols-file ${EXPORTS}"
 		# Make the 'exptmp' file for --version-script option
-		echo "VERSION_${MAJOR}.${MINOR} {" > exptmp
+		echo "{" > exptmp
 		echo "global:" >> exptmp
 		sed 's/$/;/' ${EXPORTS} >> exptmp
 		echo "local:" >> exptmp
diff --git a/bin/raw2png.py b/bin/raw2png.py
index 880dc89f55..be4f3ec86c 100755
--- a/bin/raw2png.py
+++ b/bin/raw2png.py
@@ -254,30 +254,40 @@ def yuv2rgb(y, u, v):
 	return r, g, b
 
 	
-def translate_rgba(data):
-	r, g, b, a = data
+def translate_r5g6b5(data):
+	value, = struct.unpack_from("H", data)
+	r = ((value >> 11) & 0x1f)*0xff/0x1f
+	g = ((value >>  5) & 0x3f)*0xff/0x3f
+	b = ((value >>  0) & 0x1f)*0xff/0x1f
+	a = 255
+	return [[(r, g, b, a)]]
+
+
+def translate_r8g8b8a8(data):
+	r, g, b, a = struct.unpack_from("BBBB", data)
 	return [[(r, g, b, a)]]
 
 
 def translate_ycbcr(data):
-	y1, u, y2, v = data
+	y1, u, y2, v = struct.unpack_from("BBBB", data)
 	r1, g1, b1 = yuv2rgb(y1, u, v)
 	r2, g2, b2 = yuv2rgb(y1, u, v)
 	return [[(r1, g1, b1, 255), (r2, g2, b2, 255)]]
 
 def translate_ycbcr_rev(data):
-    v, y2, u, y1 = data
+    v, y2, u, y1 = struct.unpack_from("BBBB", data)
     r1, g1, b1 = yuv2rgb(y1, u, v)
     r2, g2, b2 = yuv2rgb(y1, u, v)
     return [[(r1, g1, b1, 255), (r2, g2, b2, 255)]]
 
 
 translate = {
-	PIPE_FORMAT_A8R8G8B8_UNORM: (4, 1, 1, translate_rgba),
-	PIPE_FORMAT_X8R8G8B8_UNORM: (4, 1, 1, translate_rgba),
-	PIPE_FORMAT_B8G8R8A8_UNORM: (4, 1, 1, translate_rgba),
-	PIPE_FORMAT_B8G8R8X8_UNORM: (4, 1, 1, translate_rgba),
-	PIPE_FORMAT_A8B8G8R8_SNORM: (4, 1, 1, translate_rgba),
+	PIPE_FORMAT_A8R8G8B8_UNORM: (4, 1, 1, translate_r8g8b8a8),
+	PIPE_FORMAT_X8R8G8B8_UNORM: (4, 1, 1, translate_r8g8b8a8),
+	PIPE_FORMAT_B8G8R8A8_UNORM: (4, 1, 1, translate_r8g8b8a8),
+	PIPE_FORMAT_B8G8R8X8_UNORM: (4, 1, 1, translate_r8g8b8a8),
+	PIPE_FORMAT_A8B8G8R8_SNORM: (4, 1, 1, translate_r8g8b8a8),
+	PIPE_FORMAT_R5G6B5_UNORM: (2, 1, 1, translate_r5g6b5),
 	PIPE_FORMAT_YCBCR: (4, 2, 1, translate_ycbcr),
 	PIPE_FORMAT_YCBCR_REV: (4, 2, 1, translate_ycbcr_rev),
 }
@@ -304,7 +314,7 @@ def process(infilename, outfilename):
 		return
 	for y in range(0, height, bheight):
 		for x in range(0, width, bwidth):
-			indata = map(ord, infile.read(4))
+			indata = infile.read(bsize)
 			outdata = translate_func(indata)
 			for j in range(bheight):
 				for i in range(bwidth):
diff --git a/bin/win32kprof.py b/bin/win32kprof.py
index b4f9ce95dc..c36317d23a 100755
--- a/bin/win32kprof.py
+++ b/bin/win32kprof.py
@@ -32,266 +32,278 @@ import optparse
 import re
 import struct
 
+from gprof2dot import Call, Function, Profile
+from gprof2dot import CALLS, SAMPLES, TIME, TIME_RATIO, TOTAL_TIME, TOTAL_TIME_RATIO
+from gprof2dot import DotWriter, TEMPERATURE_COLORMAP
 
-__version__ = '0.1'
 
-verbose = False
+__version__ = '0.1'
 
 
 class ParseError(Exception):
-	pass
+    pass
 
 
 class MsvcDemangler:
-	# http://www.kegel.com/mangle.html
-
-	def __init__(self, symbol):
-		self._symbol = symbol
-		self._pos = 0
-
-	def lookahead(self):
-		return self._symbol[self._pos]
-
-	def consume(self):
-		ret = self.lookahead()
-		self._pos += 1
-		return ret
-	
-	def match(self, c):
-		if self.lookahead() != c:
-			raise ParseError
-		self.consume()
-
-	def parse(self):
-		self.match('?')
-		name = self.parse_name()
-		qualifications = self.parse_qualifications()
-		return '::'.join(qualifications + [name])
-
-	def parse_name(self):
-		if self.lookahead() == '?':
-			return self.consume() + self.consume()
-		else:
-			name = self.parse_id()
-			self.match('@')
-			return name
-
-	def parse_qualifications(self):
-		qualifications = []
-		while self.lookahead() != '@':
-			name = self.parse_id()
-			qualifications.append(name)
-			self.match('@')
-		return qualifications
-
-	def parse_id(self):
-		s = ''
-		while True:
-			c = self.lookahead()
-			if c.isalnum() or c in '_':
-				s += c
-				self.consume()
-			else:
-				break
-		return s
+    # http://www.kegel.com/mangle.html
+
+    def __init__(self, symbol):
+        self._symbol = symbol
+        self._pos = 0
+
+    def lookahead(self):
+        return self._symbol[self._pos]
+
+    def consume(self):
+        ret = self.lookahead()
+        self._pos += 1
+        return ret
+    
+    def match(self, c):
+        if self.lookahead() != c:
+            raise ParseError
+        self.consume()
+
+    def parse(self):
+        self.match('?')
+        name = self.parse_name()
+        qualifications = self.parse_qualifications()
+        return '::'.join(qualifications + [name])
+
+    def parse_name(self):
+        if self.lookahead() == '?':
+            return self.consume() + self.consume()
+        else:
+            name = self.parse_id()
+            self.match('@')
+            return name
+
+    def parse_qualifications(self):
+        qualifications = []
+        while self.lookahead() != '@':
+            name = self.parse_id()
+            qualifications.append(name)
+            self.match('@')
+        return qualifications
+
+    def parse_id(self):
+        s = ''
+        while True:
+            c = self.lookahead()
+            if c.isalnum() or c in '_':
+                s += c
+                self.consume()
+            else:
+                break
+        return s
 
 
 def demangle(name):
-	if name.startswith('_'):
-		name = name[1:]
-		idx = name.rfind('@')
-		if idx != -1 and name[idx+1:].isdigit():
-			name = name[:idx]
-		return name
-	if name.startswith('?'):
-		demangler = MsvcDemangler(name)
-		return demangler.parse()
-
-		return name
-	return name
-
-
-class Profile:
-
-	def __init__(self):
-		self.symbols = []
-		self.symbol_cache = {}
-		self.base_addr = None
-		self.functions = {}
-		self.last_stamp = 0
-		self.stamp_base = 0
-	
-	def unwrap_stamp(self, stamp):
-		if stamp < self.last_stamp:
-			self.stamp_base += 1 << 32
-		self.last_stamp = stamp
-		return self.stamp_base + stamp
-
-	def read_map(self, mapfile):
-		# See http://msdn.microsoft.com/en-us/library/k7xkk3e2.aspx
-		last_addr = 0
-		last_name = 0
-		for line in file(mapfile, "rt"):
-			fields = line.split()
-			try:
-				section_offset, name, addr, type, lib_object = fields
-			except ValueError:
-				continue
-			if type != 'f':
-				continue
-			section, offset = section_offset.split(':')
-			addr = int(offset, 16)
-			name = demangle(name)
-			if last_addr == addr:
-				# TODO: handle collapsed functions
-				#assert last_name == name
-				continue
-			self.symbols.append((addr, name))
-			last_addr = addr
-			last_name = name
-
-		# sort symbols
-		self.symbols.sort(key = lambda (addr, name): addr)
-
-	def lookup_addr(self, addr):
-		try:
-			return self.symbol_cache[addr]
-		except KeyError:
-			pass
-
-		tolerance = 4196
-		s, e = 0, len(self.symbols)
-		while s != e:
-			i = (s + e)//2
-			start_addr, name = self.symbols[i]
-			try:
-				end_addr, next_name = self.symbols[i + 1]
-			except IndexError:
-				end_addr = start_addr + tolerance
-			if addr < start_addr:
-				e = i
-				continue
-			if addr == end_addr:
-				return next_name
-			if addr > end_addr:
-				s = i
-				continue
-			return name
-		return "0x%08x" % addr
-
-	def lookup_symbol(self, name):
-		for symbol_addr, symbol_name in self.symbols:
-			if name == symbol_name:
-				return symbol_addr
-		return 0
-
-	def read_data(self, data):
-		# TODO: compute these automatically
-		caller_overhead = 672 - 2*144 # __debug_profile_reference2 - 2*__debug_profile_reference1
-		callee_overhead = 144 # __debug_profile_reference1
-		callee_overhead -= 48 # tolerance
-		caller_overhead = callee_overhead
-
-		fp = file(data, "rb")
-		entry_format = "II"
-		entry_size = struct.calcsize(entry_format)
-		stack = []
-		last_stamp = 0
-		delta = 0
-		while True:
-			entry = fp.read(entry_size)
-			if len(entry) < entry_size:
-				break
-			addr_exit, stamp = struct.unpack(entry_format, entry)
-			if addr_exit == 0 and stamp == 0:
-				break
-			addr = addr_exit & 0xfffffffe
-			exit = addr_exit & 0x00000001
-
-			if self.base_addr is None:
-				ref_addr = self.lookup_symbol('__debug_profile_reference2')
-				if ref_addr:
-					self.base_addr = addr - ref_addr
-				else:
-					self.base_addr = 0
-				#print hex(self.base_addr)
-			rel_addr = addr - self.base_addr
-			#print hex(addr - self.base_addr)
-
-			name = self.lookup_addr(rel_addr)
-			stamp = self.unwrap_stamp(stamp)
-
-			delta += stamp - last_stamp
-
-			if not exit:
-				if verbose >= 2:
-					print "%10u >> 0x%08x" % (stamp, addr)
-				if verbose:
-					print "%10u >> %s" % (stamp, name)
-				delta -= caller_overhead
-				stack.append((name, stamp, delta))
-				delta = 0
-			else:
-				if verbose >= 2:
-					print "%10u << 0x%08x" % (stamp, addr)
-				if len(stack):
-					self_time = delta - callee_overhead
-					entry_name, entry_stamp, delta = stack.pop()
-					if entry_name != name:
-						if verbose:
-							print "%10u << %s" % (stamp, name)
-						#assert entry_name == name
-						break
-					total_time = stamp - entry_stamp
-					self.functions[entry_name] = self.functions.get(entry_name, 0) + self_time
-					if verbose:
-						print "%10u << %s %+u" % (stamp, name, self_time)
-				else:
-					delta = 0
-
-			last_stamp = stamp
-
-	def write_report(self):
-		total = sum(self.functions.values())
-		results = self.functions.items()
-		results.sort(key = lambda (name, time): -time)
-		for name, time in results:
-			perc = float(time)/float(total)*100.0
-			print "%6.03f %s" % (perc, name)
+    if name.startswith('_'):
+        name = name[1:]
+        idx = name.rfind('@')
+        if idx != -1 and name[idx+1:].isdigit():
+            name = name[:idx]
+        return name
+    if name.startswith('?'):
+        demangler = MsvcDemangler(name)
+        return demangler.parse()
+    return name
+
+
+class Reader:
+
+    def __init__(self):
+        self.symbols = []
+        self.symbol_cache = {}
+        self.base_addr = None
+    
+    def read_map(self, mapfile):
+        # See http://msdn.microsoft.com/en-us/library/k7xkk3e2.aspx
+        last_addr = 0
+        last_name = 0
+        for line in file(mapfile, "rt"):
+            fields = line.split()
+            try:
+                section_offset, name, addr, type, lib_object = fields
+            except ValueError:
+                continue
+            if type != 'f':
+                continue
+            section, offset = section_offset.split(':')
+            addr = int(offset, 16)
+            self.symbols.append((addr, name))
+            last_addr = addr
+            last_name = name
+
+        # sort symbols
+        self.symbols.sort(key = lambda (addr, name): addr)
+
+    def lookup_addr(self, addr):
+        try:
+            return self.symbol_cache[addr]
+        except KeyError:
+            pass
+
+        tolerance = 4196
+        s, e = 0, len(self.symbols)
+        while s != e:
+            i = (s + e)//2
+            start_addr, name = self.symbols[i]
+            try:
+                end_addr, next_name = self.symbols[i + 1]
+            except IndexError:
+                end_addr = start_addr + tolerance
+            if addr < start_addr:
+                e = i
+                continue
+            if addr == end_addr:
+                return next_name, addr - start_addr
+            if addr > end_addr:
+                s = i
+                continue
+            return name, addr - start_addr
+        raise ValueError
+
+    def lookup_symbol(self, name):
+        for symbol_addr, symbol_name in self.symbols:
+            if name == symbol_name:
+                return symbol_addr
+        return 0
+
+    def read_data(self, data):
+        profile = Profile()
+
+        fp = file(data, "rb")
+        entry_format = "IIII"
+        entry_size = struct.calcsize(entry_format)
+        caller = None
+        caller_stack = []
+        while True:
+            entry = fp.read(entry_size)
+            if len(entry) < entry_size:
+                break
+            caller_addr, callee_addr, samples_lo, samples_hi = struct.unpack(entry_format, entry)
+            if caller_addr == 0 and callee_addr == 0:
+                continue
+
+            if self.base_addr is None:
+                ref_addr = self.lookup_symbol('___debug_profile_reference@0')
+                if ref_addr:
+                    self.base_addr = (caller_addr - ref_addr) & ~(options.align - 1)
+                else:
+                    self.base_addr = 0
+                sys.stderr.write('Base addr: %08x\n' % self.base_addr)
+
+            samples = (samples_hi << 32) | samples_lo
+            
+            try:
+                caller_raddr = caller_addr - self.base_addr
+                caller_sym, caller_ofs = self.lookup_addr(caller_raddr)
+
+                try:
+                    caller = profile.functions[caller_sym]
+                except KeyError:
+                    caller_name = demangle(caller_sym)
+                    caller = Function(caller_sym, caller_name)
+                    profile.add_function(caller)
+                    caller[CALLS] = 0
+                    caller[SAMPLES] = 0
+            except ValueError:
+                caller = None
+
+            if not callee_addr:
+                if caller:
+                    caller[SAMPLES] += samples
+            else:
+                callee_raddr = callee_addr - self.base_addr
+                callee_sym, callee_ofs = self.lookup_addr(callee_raddr)
+
+                try:
+                    callee = profile.functions[callee_sym]
+                except KeyError:
+                    callee_name = demangle(callee_sym)
+                    callee = Function(callee_sym, callee_name)
+                    profile.add_function(callee)
+                    callee[CALLS] = samples
+                    callee[SAMPLES] = 0
+                else:
+                    callee[CALLS] += samples
+
+                if caller is not None:
+                    try:
+                        call = caller.calls[callee.id]
+                    except KeyError:
+                        call = Call(callee.id)
+                        call[CALLS] = samples
+                        caller.add_call(call)
+                    else:
+                        call[CALLS] += samples
+            
+            if options.verbose:
+                if not callee_addr:
+                    sys.stderr.write('%s+%u: %u\n' % (caller_sym, caller_ofs, samples))
+                else:
+                    sys.stderr.write('%s+%u -> %s+%u: %u\n' % (caller_sym, caller_ofs, callee_sym, callee_ofs, samples))
+
+        # compute derived data
+        profile.validate()
+        profile.find_cycles()
+        profile.aggregate(SAMPLES)
+        profile.ratio(TIME_RATIO, SAMPLES)
+        profile.call_ratios(CALLS)
+        profile.integrate(TOTAL_TIME_RATIO, TIME_RATIO)
+
+        return profile
 
 
 def main():
-		parser = optparse.OptionParser(
-			usage="\n\t%prog [options] [file] ...",
-			version="%%prog %s" % __version__)
-		parser.add_option(
-			'-m', '--map', metavar='FILE',
-			type="string", dest="map",
-			help="map file")
-		parser.add_option(
-			'-b', '--base', metavar='FILE',
-			type="string", dest="base",
-			help="base addr")
-		parser.add_option(
-			'-v', '--verbose',
-			action="count",
-			dest="verbose", default=0,
-			help="verbose output")
-		(options, args) = parser.parse_args(sys.argv[1:])
-
-		global verbose
-		verbose = options.verbose
-
-		profile = Profile()
-		if options.base is not None:
-			profile.base_addr = int(options.base, 16)
-		if options.map is not None:
-			profile.read_map(options.map)
-		for arg in args:
-			profile.read_data(arg)
-		profile.write_report()
+    parser = optparse.OptionParser(
+        usage="\n\t%prog [options] [file] ...",
+        version="%%prog %s" % __version__)
+    parser.add_option(
+        '-a', '--align', metavar='NUMBER',
+        type="int", dest="align", default=16,
+        help="section alignment")
+    parser.add_option(
+        '-m', '--map', metavar='FILE',
+        type="string", dest="map",
+        help="map file")
+    parser.add_option(
+        '-b', '--base', metavar='FILE',
+        type="string", dest="base",
+        help="base addr")
+    parser.add_option(
+        '-n', '--node-thres', metavar='PERCENTAGE',
+        type="float", dest="node_thres", default=0.5,
+        help="eliminate nodes below this threshold [default: %default]")
+    parser.add_option(
+        '-e', '--edge-thres', metavar='PERCENTAGE',
+        type="float", dest="edge_thres", default=0.1,
+        help="eliminate edges below this threshold [default: %default]")
+    parser.add_option(
+        '-v', '--verbose',
+        action="count",
+        dest="verbose", default=0,
+        help="verbose output")
+
+    global options
+    (options, args) = parser.parse_args(sys.argv[1:])
+
+    reader = Reader()
+    if options.base is not None:
+        reader.base_addr = int(options.base, 16)
+    if options.map is not None:
+        reader.read_map(options.map)
+    for arg in args:
+        profile = reader.read_data(arg)
+        profile.prune(options.node_thres/100.0, options.edge_thres/100.0)
+        output = sys.stdout
+        dot = DotWriter(output)
+        colormap = TEMPERATURE_COLORMAP
+        dot.graph(profile, colormap)
 
 
 if __name__ == '__main__':
-	main()
+    main()
 
diff --git a/configs/default b/configs/default
index 8c6ae84840..1443514606 100644
--- a/configs/default
+++ b/configs/default
@@ -66,6 +66,8 @@ DRIVER_DIRS =
 # Which subdirs under $(TOP)/progs/ to enter:
 PROGRAM_DIRS = demos redbook samples glsl xdemos
 
+# EGL directories
+EGL_DRIVERS_DIRS = demo
 
 # Gallium directories and 
 GALLIUM_AUXILIARY_DIRS = draw translate cso_cache pipebuffer tgsi sct rtasm util
diff --git a/configs/linux-dri b/configs/linux-dri
index ae9098c493..ce5d2b7d17 100644
--- a/configs/linux-dri
+++ b/configs/linux-dri
@@ -50,6 +50,8 @@ GL_LIB_DEPS   = $(EXTRA_LIB_PATH) -lX11 -lXext -lXxf86vm -lXdamage -lXfixes \
 SRC_DIRS := glx/x11 egl $(SRC_DIRS)
 
 
+# EGL directories
+EGL_DRIVERS_DIRS = demo dri xdri
 
 DRIVER_DIRS =
 WINDOW_SYSTEM = dri
diff --git a/include/GL/gl.h b/include/GL/gl.h
index c0cebec2ef..c9ef6136fa 100644
--- a/include/GL/gl.h
+++ b/include/GL/gl.h
@@ -58,7 +58,7 @@
 #  else /* for use with static link lib build of Win32 edition only */
 #    define GLAPI extern
 #  endif /* _STATIC_MESA support */
-#  if defined(__MINGW32__) && defined(GL_NO_STDCALL)  /* The generated DLLs by MingW with STDCALL are not compatible with the ones done by Microsoft's compilers */
+#  if defined(__MINGW32__) && defined(GL_NO_STDCALL) || defined(UNDER_CE)  /* The generated DLLs by MingW with STDCALL are not compatible with the ones done by Microsoft's compilers */
 #    define GLAPIENTRY 
 #  else
 #    define GLAPIENTRY __stdcall
diff --git a/include/GL/glext.h b/include/GL/glext.h
index 2519a6cc5e..6ecb44affb 100644
--- a/include/GL/glext.h
+++ b/include/GL/glext.h
@@ -3416,16 +3416,16 @@ typedef unsigned short GLhalfNV;
 #endif
 
 #ifndef GLEXT_64_TYPES_DEFINED
-/* This code block is duplicated in glext.h, so must be protected */
+/* This code block is duplicated in glxext.h, so must be protected */
 #define GLEXT_64_TYPES_DEFINED
 /* Define int32_t, int64_t, and uint64_t types for UST/MSC */
 /* (as used in the GL_EXT_timer_query extension). */
 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
 #include <inttypes.h>
-#elif defined(__sun__)
+#elif defined(__sun__) || defined(__digital__)
 #include <inttypes.h>
 #if defined(__STDC__)
-#if defined(__arch64__)
+#if defined(__arch64__) || defined(_LP64)
 typedef long int int64_t;
 typedef unsigned long int uint64_t;
 #else
@@ -3433,7 +3433,7 @@ typedef long long int int64_t;
 typedef unsigned long long int uint64_t;
 #endif /* __arch64__ */
 #endif /* __STDC__ */
-#elif defined( __VMS )
+#elif defined( __VMS ) || defined(__sgi)
 #include <inttypes.h>
 #elif defined(__SCO__) || defined(__USLC__)
 #include <stdint.h>
diff --git a/include/GL/glxext.h b/include/GL/glxext.h
index 0f66df6277..aedc311cbf 100644
--- a/include/GL/glxext.h
+++ b/include/GL/glxext.h
@@ -380,7 +380,7 @@ typedef struct {
 #endif
 
 #ifndef GLEXT_64_TYPES_DEFINED
-/* This code block is duplicated in glxext.h, so must be protected */
+/* This code block is duplicated in glext.h, so must be protected */
 #define GLEXT_64_TYPES_DEFINED
 /* Define int32_t, int64_t, and uint64_t types for UST/MSC */
 /* (as used in the GLX_OML_sync_control extension). */
@@ -389,7 +389,7 @@ typedef struct {
 #elif defined(__sun__) || defined(__digital__)
 #include <inttypes.h>
 #if defined(__STDC__)
-#if defined(__arch64__)
+#if defined(__arch64__) || defined(_LP64)
 typedef long int int64_t;
 typedef unsigned long int uint64_t;
 #else
@@ -397,7 +397,7 @@ typedef long long int int64_t;
 typedef unsigned long long int uint64_t;
 #endif /* __arch64__ */
 #endif /* __STDC__ */
-#elif defined( __VMS )
+#elif defined( __VMS ) || defined(__sgi)
 #include <inttypes.h>
 #elif defined(__SCO__) || defined(__USLC__)
 #include <stdint.h>
diff --git a/include/GLES/glplatform.h b/include/GLES/glplatform.h
index dbbf2b9194..6e725b18a9 100644
--- a/include/GLES/glplatform.h
+++ b/include/GLES/glplatform.h
@@ -51,7 +51,11 @@ extern "C" {
 #   else
 #       define GL_API __declspec(dllimport)
 #   endif
-#   define GL_APIENTRY __stdcall
+#   ifdef UNDER_CE
+#       define GL_APIENTRY
+#   else
+#       define GL_APIENTRY __stdcall
+#   endif
 #else
 #   ifdef __GL_EXPORTS
 #       define GL_API
diff --git a/include/GLES2/gl2platform.h b/include/GLES2/gl2platform.h
index 348daea765..7891a61ed7 100644
--- a/include/GLES2/gl2platform.h
+++ b/include/GLES2/gl2platform.h
@@ -51,7 +51,11 @@ extern "C" {
 #   else
 #       define GL_APICALL __declspec(dllimport)
 #   endif
-#   define GL_APIENTRY __stdcall
+#   ifdef UNDER_CE
+#       define GL_APIENTRY
+#   else
+#       define GL_APIENTRY __stdcall
+#   endif
 #else
 #   ifdef __GL_EXPORTS
 #       define GL_APICALL
diff --git a/progs/glsl/convolutions.c b/progs/glsl/convolutions.c
index be887714c4..9b9ee53245 100644
--- a/progs/glsl/convolutions.c
+++ b/progs/glsl/convolutions.c
@@ -12,6 +12,7 @@ enum Filter {
    SHARPEN,
    MEAN_REMOVAL,
    EMBOSS,
+   EDGE_DETECT,
    NO_FILTER,
    LAST
 };
@@ -146,6 +147,17 @@ static void fillConvolution(GLint *k,
       color[2] = 0.5;
       color[3] = 0.5;
       break;
+   case EDGE_DETECT:
+      k[0] =  1; k[1] =  1; k[2] =  1;
+      k[3] =  0; k[4] =  0; k[5] =  0;
+      k[6] = -1; k[7] = -1; k[8] = -1;
+
+      *scale = 1.;
+      color[0] = 0.5;
+      color[1] = 0.5;
+      color[2] = 0.5;
+      color[3] = 0.5;
+      break;
    case NO_FILTER:
       k[0] =  0; k[1] =  0; k[2] =  0;
       k[3] =  0; k[4] =  1; k[5] =  0;
@@ -294,6 +306,7 @@ static void menuInit()
    glutAddMenuEntry("Sharpen", SHARPEN);
    glutAddMenuEntry("Mean removal", MEAN_REMOVAL);
    glutAddMenuEntry("Emboss", EMBOSS);
+   glutAddMenuEntry("Edge detect", EDGE_DETECT);
    glutAddMenuEntry("None", NO_FILTER);
 
    glutAddMenuEntry("Quit", QUIT);
diff --git a/scons/gallium.py b/scons/gallium.py
index 62030f0ab7..43603e5104 100644
--- a/scons/gallium.py
+++ b/scons/gallium.py
@@ -4,10 +4,10 @@ Frontend-tool for Gallium3D architecture.
 
 """
 
-# 
+#
 # Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
 # All Rights Reserved.
-# 
+#
 # Permission is hereby granted, free of charge, to any person obtaining a
 # copy of this software and associated documentation files (the
 # "Software"), to deal in the Software without restriction, including
@@ -15,11 +15,11 @@ Frontend-tool for Gallium3D architecture.
 # distribute, sub license, and/or sell copies of the Software, and to
 # permit persons to whom the Software is furnished to do so, subject to
 # the following conditions:
-# 
+#
 # The above copyright notice and this permission notice (including the
 # next paragraph) shall be included in all copies or substantial portions
 # of the Software.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
@@ -27,7 +27,7 @@ Frontend-tool for Gallium3D architecture.
 # ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-# 
+#
 
 
 import os
@@ -40,13 +40,13 @@ import SCons.Scanner
 
 
 def quietCommandLines(env):
-	# Quiet command lines
-	# See also http://www.scons.org/wiki/HidingCommandLinesInOutput
-	env['CCCOMSTR'] = "Compiling $SOURCE ..."
-	env['CXXCOMSTR'] = "Compiling $SOURCE ..."
-	env['ARCOMSTR'] = "Archiving $TARGET ..."
-	env['RANLIBCOMSTR'] = ""
-	env['LINKCOMSTR'] = "Linking $TARGET ..."
+    # Quiet command lines
+    # See also http://www.scons.org/wiki/HidingCommandLinesInOutput
+    env['CCCOMSTR'] = "Compiling $SOURCE ..."
+    env['CXXCOMSTR'] = "Compiling $SOURCE ..."
+    env['ARCOMSTR'] = "Archiving $TARGET ..."
+    env['RANLIBCOMSTR'] = ""
+    env['LINKCOMSTR'] = "Linking $TARGET ..."
 
 
 def createConvenienceLibBuilder(env):
@@ -54,7 +54,7 @@ def createConvenienceLibBuilder(env):
     Builder in an Environment if it is not there already.
 
     If it is already there, we return the existing one.
-    
+
     Based on the stock StaticLibrary and SharedLibrary builders.
     """
 
@@ -82,337 +82,348 @@ def createConvenienceLibBuilder(env):
 import_re = re.compile(r'^import\s+(\S+)$', re.M)
 
 def python_scan(node, env, path):
-	# http://www.scons.org/doc/0.98.5/HTML/scons-user/c2781.html#AEN2789
-	contents = node.get_contents()
-	source_dir = node.get_dir()
-	imports = import_re.findall(contents)
-	results = []
-	for imp in imports:
-		for dir in path:
-			file = os.path.join(str(dir), imp.replace('.', os.sep) + '.py')
-			if os.path.exists(file):  
-				results.append(env.File(file))
-				break
-			file = os.path.join(str(dir), imp.replace('.', os.sep), '__init__.py')
-			if os.path.exists(file):  
-				results.append(env.File(file))
-				break
-	return results
+    # http://www.scons.org/doc/0.98.5/HTML/scons-user/c2781.html#AEN2789
+    contents = node.get_contents()
+    source_dir = node.get_dir()
+    imports = import_re.findall(contents)
+    results = []
+    for imp in imports:
+        for dir in path:
+            file = os.path.join(str(dir), imp.replace('.', os.sep) + '.py')
+            if os.path.exists(file):
+                results.append(env.File(file))
+                break
+            file = os.path.join(str(dir), imp.replace('.', os.sep), '__init__.py')
+            if os.path.exists(file):
+                results.append(env.File(file))
+                break
+    return results
 
 python_scanner = SCons.Scanner.Scanner(function = python_scan, skeys = ['.py'])
 
 
 def code_generate(env, script, target, source, command):
-	"""Method to simplify code generation via python scripts.
-	
-	http://www.scons.org/wiki/UsingCodeGenerators
-	http://www.scons.org/doc/0.98.5/HTML/scons-user/c2768.html
-	"""
-	
-	# We're generating code using Python scripts, so we have to be 
-	# careful with our scons elements.  This entry represents
-	# the generator file *in the source directory*.
-	script_src = env.File(script).srcnode()
-	
-	# This command creates generated code *in the build directory*.
-	command = command.replace('$SCRIPT', script_src.path)
-	code = env.Command(target, source, command)
-
-	# Explicitly mark that the generated code depends on the generator,
-	# and on implicitly imported python modules
-	path = (script_src.get_dir(),)
-	deps = [script_src]
-	deps += script_src.get_implicit_deps(env, python_scanner, path)
-	env.Depends(code, deps)
-	
-	# Running the Python script causes .pyc files to be generated in the
-	# source directory.  When we clean up, they should go too. So add side 
-	# effects for .pyc files
-	for dep in deps:
-		pyc = env.File(str(dep) + 'c')
-		env.SideEffect(pyc, code)
-		
-	return code
+    """Method to simplify code generation via python scripts.
+
+    http://www.scons.org/wiki/UsingCodeGenerators
+    http://www.scons.org/doc/0.98.5/HTML/scons-user/c2768.html
+    """
+
+    # We're generating code using Python scripts, so we have to be
+    # careful with our scons elements.  This entry represents
+    # the generator file *in the source directory*.
+    script_src = env.File(script).srcnode()
+
+    # This command creates generated code *in the build directory*.
+    command = command.replace('$SCRIPT', script_src.path)
+    code = env.Command(target, source, command)
+
+    # Explicitly mark that the generated code depends on the generator,
+    # and on implicitly imported python modules
+    path = (script_src.get_dir(),)
+    deps = [script_src]
+    deps += script_src.get_implicit_deps(env, python_scanner, path)
+    env.Depends(code, deps)
+
+    # Running the Python script causes .pyc files to be generated in the
+    # source directory.  When we clean up, they should go too. So add side
+    # effects for .pyc files
+    for dep in deps:
+        pyc = env.File(str(dep) + 'c')
+        env.SideEffect(pyc, code)
+
+    return code
 
 
 def createCodeGenerateMethod(env):
-	env.Append(SCANNERS = python_scanner)
-	env.AddMethod(code_generate, 'CodeGenerate')
+    env.Append(SCANNERS = python_scanner)
+    env.AddMethod(code_generate, 'CodeGenerate')
 
 
 def generate(env):
-	"""Common environment generation code"""
-	
-	# FIXME: this is already too late
-	#if env.get('quiet', False):
-	#	quietCommandLines(env)
-	
-	# shortcuts
-	debug = env['debug']
-	machine = env['machine']
-	platform = env['platform']
-	x86 = env['machine'] == 'x86'
-	gcc = env['platform'] in ('linux', 'freebsd', 'darwin')
-	msvc = env['platform'] in ('windows', 'winddk', 'wince')
-
-	# Tool
-	if platform == 'winddk':
-		env.Tool('winddk')
-	elif platform == 'wince':
-		env.Tool('wcesdk')
-	else:
-		env.Tool('default')
-
-	# Put build output in a separate dir, which depends on the current 
-	# configuration. See also http://www.scons.org/wiki/AdvancedBuildExample
-	build_topdir = 'build'
-	build_subdir = env['platform']
-	if env['dri']:
-		build_subdir += "-dri"
-	if env['llvm']:
-		build_subdir += "-llvm"
-	if env['machine'] != 'generic':
-		build_subdir += '-' + env['machine']
-	if env['debug']:
-		build_subdir += "-debug"
-	if env['profile']:
-		build_subdir += "-profile"
-	build_dir = os.path.join(build_topdir, build_subdir)
-	# Place the .sconsign file in the build dir too, to avoid issues with 
-	# different scons versions building the same source file
-	env['build'] = build_dir
-	env.SConsignFile(os.path.join(build_dir, '.sconsign'))
-
-	# C preprocessor options
-	cppdefines = []
-	if debug:
-		cppdefines += ['DEBUG']
-	else:
-		cppdefines += ['NDEBUG']
-	if env['profile']:
-		cppdefines += ['PROFILE']
-	if platform == 'windows':
-		cppdefines += [
-			'WIN32', 
-			'_WINDOWS', 
-			'_UNICODE',
-			'UNICODE',
-			# http://msdn2.microsoft.com/en-us/library/6dwk3a1z.aspx,
-			'WIN32_LEAN_AND_MEAN',
-			'VC_EXTRALEAN', 
-			'_CRT_SECURE_NO_DEPRECATE',
-		]
-		if debug:
-			cppdefines += ['_DEBUG']
-	if platform == 'winddk':
-		# Mimic WINDDK's builtin flags. See also:
-		# - WINDDK's bin/makefile.new i386mk.inc for more info.
-		# - buildchk_wxp_x86.log files, generated by the WINDDK's build
-		# - http://alter.org.ua/docs/nt_kernel/vc8_proj/
-		cppdefines += [
-			('_X86_', '1'), 
-			('i386', '1'), 
-			'STD_CALL', 
-			('CONDITION_HANDLING', '1'),
-			('NT_INST', '0'), 
-			('WIN32', '100'),
-			('_NT1X_', '100'),
-			('WINNT', '1'),
-			('_WIN32_WINNT', '0x0501'), # minimum required OS version
-			('WINVER', '0x0501'),
-			('_WIN32_IE', '0x0603'),
-			('WIN32_LEAN_AND_MEAN', '1'),
-			('DEVL', '1'),
-			('__BUILDMACHINE__', 'WinDDK'),
-			('FPO', '0'),
-		]
-		if debug:
-			cppdefines += [('DBG', 1)]
-	if platform == 'wince':
-		cppdefines += [
-			'_CRT_SECURE_NO_DEPRECATE',
-			'_USE_32BIT_TIME_T',
-			'UNICODE',
-			'_UNICODE',
-			('UNDER_CE', '600'),
-			('_WIN32_WCE', '0x600'),
-			'WINCEOEM',
-			'WINCEINTERNAL',
-			'WIN32',
-			'STRICT',
-			'x86',
-			'_X86_',
-			'INTERNATIONAL',
-			('INTLMSG_CODEPAGE', '1252'),
-		]
-	if platform == 'windows':
-		cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_USER']
-	if platform == 'winddk':
-		cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_DISPLAY']
-	if platform == 'wince':
-		cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_CE']
-	env.Append(CPPDEFINES = cppdefines)
-
-	# C preprocessor includes
-	if platform == 'winddk':
-		env.Append(CPPPATH = [
-			env['SDK_INC_PATH'],
-			env['DDK_INC_PATH'],
-			env['WDM_INC_PATH'],
-			env['CRT_INC_PATH'],
-		])
-
-	# C compiler options
-	cflags = []
-	if gcc:
-		if debug:
-			cflags += ['-O0', '-g3']
-		else:
-			cflags += ['-O3', '-g3']
-		if env['profile']:
-			cflags += ['-pg']
-		if env['machine'] == 'x86':
-			cflags += [
-				'-m32',
-				#'-march=pentium4',
-				'-mmmx', '-msse', '-msse2', # enable SIMD intrinsics
-				#'-mfpmath=sse',
-			]
-		if env['machine'] == 'x86_64':
-			cflags += ['-m64']
-		cflags += [
-			'-Wall', 
-			'-Wmissing-prototypes',
-			'-Wno-long-long',
-			'-ffast-math',
-			'-pedantic',
-			'-fmessage-length=0', # be nice to Eclipse 
-		]
-	if msvc:
-		# See also:
-		# - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx
-		# - cl /?
-		if debug:
-			cflags += [
-			  '/Od', # disable optimizations
-			  '/Oi', # enable intrinsic functions
-			  '/Oy-', # disable frame pointer omission
-			]
-		else:
-			cflags += [
-			  '/Ox', # maximum optimizations
-			  '/Oi', # enable intrinsic functions
-			  '/Os', # favor code space
-			]
-		if env['profile']:
-			cflags += [
-				'/Gh', # enable _penter hook function
-				'/GH', # enable _pexit hook function
-			]
-		cflags += [
-			'/W3', # warning level
-			#'/Wp64', # enable 64 bit porting warnings
-		]
-		if platform == 'windows':
-			cflags += [
-				# TODO
-			]
-		if platform == 'winddk':
-			cflags += [
-				'/Zl', # omit default library name in .OBJ
-				'/Zp8', # 8bytes struct member alignment
-				'/Gy', # separate functions for linker
-				'/Gm-', # disable minimal rebuild
-				'/WX', # treat warnings as errors
-				'/Gz', # __stdcall Calling convention
-				'/GX-', # disable C++ EH
-				'/GR-', # disable C++ RTTI
-				'/GF', # enable read-only string pooling
-				'/G6', # optimize for PPro, P-II, P-III
-				'/Ze', # enable extensions
-				'/Gi-', # disable incremental compilation
-				'/QIfdiv-', # disable Pentium FDIV fix
-				'/hotpatch', # prepares an image for hotpatching.
-				#'/Z7', #enable old-style debug info
-			]
-		if platform == 'wince':
-			# See also C:\WINCE600\public\common\oak\misc\makefile.def
-			cflags += [
-				'/GF', # enable read-only string pooling
-				'/GR-', # disable C++ RTTI
-				'/GS', # enable security checks
-				# Allow disabling language conformance to maintain backward compat
-				#'/Zc:wchar_t-', # don't force wchar_t as native type, instead of typedef
-				#'/Zc:forScope-', # don't enforce Standard C++ for scoping rules
-				#'/wd4867',
-				#'/wd4430',
-				#'/MT',
-				#'/U_MT',
-			]
-		# Automatic pdb generation
-		# See http://scons.tigris.org/issues/show_bug.cgi?id=1656
-		env.EnsureSConsVersion(0, 98, 0)
-		env['PDB'] = '${TARGET.base}.pdb'
-	env.Append(CFLAGS = cflags)
-	env.Append(CXXFLAGS = cflags)
-
-	# Assembler options
-	if gcc:
-		if env['machine'] == 'x86':
-			env.Append(ASFLAGS = ['-m32'])
-		if env['machine'] == 'x86_64':
-			env.Append(ASFLAGS = ['-m64'])
-
-	# Linker options
-	linkflags = []
-	if gcc:
-		if env['machine'] == 'x86':
-			linkflags += ['-m32']
-		if env['machine'] == 'x86_64':
-			linkflags += ['-m64']
-	if platform == 'winddk':
-		# See also:
-		# - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx
-		linkflags += [
-			'/merge:_PAGE=PAGE',
-			'/merge:_TEXT=.text',
-			'/section:INIT,d',
-			'/opt:ref',
-			'/opt:icf',
-			'/ignore:4198,4010,4037,4039,4065,4070,4078,4087,4089,4221',
-			'/incremental:no',
-			'/fullbuild',
-			'/release',
-			'/nodefaultlib',
-			'/wx',
-			'/debug',
-			'/debugtype:cv',
-			'/version:5.1',
-			'/osversion:5.1',
-			'/functionpadmin:5',
-			'/safeseh',
-			'/pdbcompress',
-			'/stack:0x40000,0x1000',
-			'/driver', 
-			'/align:0x80',
-			'/subsystem:native,5.01',
-			'/base:0x10000',
-			
-			'/entry:DrvEnableDriver',
-		]
-		if env['profile']:
-			linkflags += [
-				'/MAP', # http://msdn.microsoft.com/en-us/library/k7xkk3e2.aspx
-			]
-	env.Append(LINKFLAGS = linkflags)
-
-	# Custom builders and methods
-	createConvenienceLibBuilder(env)
-	createCodeGenerateMethod(env)
-
-	# for debugging
-	#print env.Dump()
+    """Common environment generation code"""
+
+    # FIXME: this is already too late
+    #if env.get('quiet', False):
+    #    quietCommandLines(env)
+
+    # shortcuts
+    debug = env['debug']
+    machine = env['machine']
+    platform = env['platform']
+    x86 = env['machine'] == 'x86'
+    gcc = env['platform'] in ('linux', 'freebsd', 'darwin')
+    msvc = env['platform'] in ('windows', 'winddk', 'wince')
+
+    # Tool
+    if platform == 'winddk':
+        env.Tool('winddk')
+    elif platform == 'wince':
+        env.Tool('wcesdk')
+    else:
+        env.Tool('default')
+
+    # Put build output in a separate dir, which depends on the current
+    # configuration. See also http://www.scons.org/wiki/AdvancedBuildExample
+    build_topdir = 'build'
+    build_subdir = env['platform']
+    if env['dri']:
+        build_subdir += "-dri"
+    if env['llvm']:
+        build_subdir += "-llvm"
+    if env['machine'] != 'generic':
+        build_subdir += '-' + env['machine']
+    if env['debug']:
+        build_subdir += "-debug"
+    if env['profile']:
+        build_subdir += "-profile"
+    build_dir = os.path.join(build_topdir, build_subdir)
+    # Place the .sconsign file in the build dir too, to avoid issues with
+    # different scons versions building the same source file
+    env['build'] = build_dir
+    env.SConsignFile(os.path.join(build_dir, '.sconsign'))
+
+    # C preprocessor options
+    cppdefines = []
+    if debug:
+        cppdefines += ['DEBUG']
+    else:
+        cppdefines += ['NDEBUG']
+    if env['profile']:
+        cppdefines += ['PROFILE']
+    if platform == 'windows':
+        cppdefines += [
+            'WIN32',
+            '_WINDOWS',
+            '_UNICODE',
+            'UNICODE',
+            # http://msdn2.microsoft.com/en-us/library/6dwk3a1z.aspx,
+            'WIN32_LEAN_AND_MEAN',
+            'VC_EXTRALEAN',
+            '_CRT_SECURE_NO_DEPRECATE',
+        ]
+        if debug:
+            cppdefines += ['_DEBUG']
+    if platform == 'winddk':
+        # Mimic WINDDK's builtin flags. See also:
+        # - WINDDK's bin/makefile.new i386mk.inc for more info.
+        # - buildchk_wxp_x86.log files, generated by the WINDDK's build
+        # - http://alter.org.ua/docs/nt_kernel/vc8_proj/
+        cppdefines += [
+            ('_X86_', '1'),
+            ('i386', '1'),
+            'STD_CALL',
+            ('CONDITION_HANDLING', '1'),
+            ('NT_INST', '0'),
+            ('WIN32', '100'),
+            ('_NT1X_', '100'),
+            ('WINNT', '1'),
+            ('_WIN32_WINNT', '0x0501'), # minimum required OS version
+            ('WINVER', '0x0501'),
+            ('_WIN32_IE', '0x0603'),
+            ('WIN32_LEAN_AND_MEAN', '1'),
+            ('DEVL', '1'),
+            ('__BUILDMACHINE__', 'WinDDK'),
+            ('FPO', '0'),
+        ]
+        if debug:
+            cppdefines += [('DBG', 1)]
+    if platform == 'wince':
+        cppdefines += [
+            '_CRT_SECURE_NO_DEPRECATE',
+            '_USE_32BIT_TIME_T',
+            'UNICODE',
+            '_UNICODE',
+            ('UNDER_CE', '600'),
+            ('_WIN32_WCE', '0x600'),
+            'WINCEOEM',
+            'WINCEINTERNAL',
+            'WIN32',
+            'STRICT',
+            'x86',
+            '_X86_',
+            'INTERNATIONAL',
+            ('INTLMSG_CODEPAGE', '1252'),
+        ]
+    if platform == 'windows':
+        cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_USER']
+    if platform == 'winddk':
+        cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_DISPLAY']
+    if platform == 'wince':
+        cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_CE']
+    env.Append(CPPDEFINES = cppdefines)
+
+    # C preprocessor includes
+    if platform == 'winddk':
+        env.Append(CPPPATH = [
+            env['SDK_INC_PATH'],
+            env['DDK_INC_PATH'],
+            env['WDM_INC_PATH'],
+            env['CRT_INC_PATH'],
+        ])
+
+    # C compiler options
+    cflags = []
+    if gcc:
+        if debug:
+            cflags += ['-O0', '-g3']
+        else:
+            cflags += ['-O3', '-g3']
+        if env['profile']:
+            cflags += ['-pg']
+        if env['machine'] == 'x86':
+            cflags += [
+                '-m32',
+                #'-march=pentium4',
+                '-mmmx', '-msse', '-msse2', # enable SIMD intrinsics
+                #'-mfpmath=sse',
+            ]
+        if env['machine'] == 'x86_64':
+            cflags += ['-m64']
+        cflags += [
+            '-Wall',
+            '-Wmissing-prototypes',
+            '-Wno-long-long',
+            '-ffast-math',
+            '-pedantic',
+            '-fmessage-length=0', # be nice to Eclipse
+        ]
+    if msvc:
+        # See also:
+        # - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx
+        # - cl /?
+        if debug:
+            cflags += [
+              '/Od', # disable optimizations
+              '/Oi', # enable intrinsic functions
+              '/Oy-', # disable frame pointer omission
+            ]
+        else:
+            cflags += [
+              '/Ox', # maximum optimizations
+              '/Oi', # enable intrinsic functions
+              '/Os', # favor code space
+            ]
+        if env['profile']:
+            cflags += [
+                '/Gh', # enable _penter hook function
+                '/GH', # enable _pexit hook function
+            ]
+        cflags += [
+            '/W3', # warning level
+            #'/Wp64', # enable 64 bit porting warnings
+        ]
+        if platform == 'windows':
+            cflags += [
+                # TODO
+            ]
+        if platform == 'winddk':
+            cflags += [
+                '/Zl', # omit default library name in .OBJ
+                '/Zp8', # 8bytes struct member alignment
+                '/Gy', # separate functions for linker
+                '/Gm-', # disable minimal rebuild
+                '/WX', # treat warnings as errors
+                '/Gz', # __stdcall Calling convention
+                '/GX-', # disable C++ EH
+                '/GR-', # disable C++ RTTI
+                '/GF', # enable read-only string pooling
+                '/G6', # optimize for PPro, P-II, P-III
+                '/Ze', # enable extensions
+                '/Gi-', # disable incremental compilation
+                '/QIfdiv-', # disable Pentium FDIV fix
+                '/hotpatch', # prepares an image for hotpatching.
+                #'/Z7', #enable old-style debug info
+            ]
+        if platform == 'wince':
+            # See also C:\WINCE600\public\common\oak\misc\makefile.def
+            cflags += [
+                '/Zl', # omit default library name in .OBJ
+                '/GF', # enable read-only string pooling
+                '/GR-', # disable C++ RTTI
+                '/GS', # enable security checks
+                # Allow disabling language conformance to maintain backward compat
+                #'/Zc:wchar_t-', # don't force wchar_t as native type, instead of typedef
+                #'/Zc:forScope-', # don't enforce Standard C++ for scoping rules
+                #'/wd4867',
+                #'/wd4430',
+                #'/MT',
+                #'/U_MT',
+            ]
+        # Automatic pdb generation
+        # See http://scons.tigris.org/issues/show_bug.cgi?id=1656
+        env.EnsureSConsVersion(0, 98, 0)
+        env['PDB'] = '${TARGET.base}.pdb'
+    env.Append(CFLAGS = cflags)
+    env.Append(CXXFLAGS = cflags)
+
+    # Assembler options
+    if gcc:
+        if env['machine'] == 'x86':
+            env.Append(ASFLAGS = ['-m32'])
+        if env['machine'] == 'x86_64':
+            env.Append(ASFLAGS = ['-m64'])
+
+    # Linker options
+    linkflags = []
+    if gcc:
+        if env['machine'] == 'x86':
+            linkflags += ['-m32']
+        if env['machine'] == 'x86_64':
+            linkflags += ['-m64']
+    if platform == 'winddk':
+        # See also:
+        # - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx
+        linkflags += [
+            '/merge:_PAGE=PAGE',
+            '/merge:_TEXT=.text',
+            '/section:INIT,d',
+            '/opt:ref',
+            '/opt:icf',
+            '/ignore:4198,4010,4037,4039,4065,4070,4078,4087,4089,4221',
+            '/incremental:no',
+            '/fullbuild',
+            '/release',
+            '/nodefaultlib',
+            '/wx',
+            '/debug',
+            '/debugtype:cv',
+            '/version:5.1',
+            '/osversion:5.1',
+            '/functionpadmin:5',
+            '/safeseh',
+            '/pdbcompress',
+            '/stack:0x40000,0x1000',
+            '/driver',
+            '/align:0x80',
+            '/subsystem:native,5.01',
+            '/base:0x10000',
+
+            '/entry:DrvEnableDriver',
+        ]
+        if env['profile']:
+            linkflags += [
+                '/MAP', # http://msdn.microsoft.com/en-us/library/k7xkk3e2.aspx
+            ]
+    if platform == 'wince':
+        linkflags += [
+            '/nodefaultlib',
+            #'/incremental:no',
+            #'/fullbuild',
+            '/entry:_DllMainCRTStartup',
+        ]
+    env.Append(LINKFLAGS = linkflags)
+
+    # Default libs
+    env.Append(LIBS = [])
+
+    # Custom builders and methods
+    createConvenienceLibBuilder(env)
+    createCodeGenerateMethod(env)
+
+    # for debugging
+    #print env.Dump()
 
 
 def exists(env):
-	return 1
+    return 1
diff --git a/scons/python.py b/scons/python.py
new file mode 100644
index 0000000000..539184dd39
--- /dev/null
+++ b/scons/python.py
@@ -0,0 +1,70 @@
+"""gallium
+
+Frontend-tool for Gallium3D architecture.
+
+"""
+
+# 
+# Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+# All Rights Reserved.
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sub license, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+# 
+# The above copyright notice and this permission notice (including the
+# next paragraph) shall be included in all copies or substantial portions
+# of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+# IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+# ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+# 
+
+
+import sys
+import distutils.sysconfig
+import os.path
+
+
+def generate(env):
+    # See http://www.scons.org/wiki/PythonExtensions
+    
+    if sys.platform in ['windows']:
+        python_root = sys.prefix
+        python_version = '%u%u' % sys.version_info[:2]
+        python_include = os.path.join(python_root, 'include')
+        python_libs = os.path.join(python_root, 'libs')
+        python_lib = os.path.join(python_libs, 'python' + python_version + '.lib')
+        
+        env.Append(CPPPATH = [python_include])
+        env.Append(LIBPATH = [python_libs])
+        env.Append(LIBS = ['python' + python_version + '.lib'])
+        env.Replace(SHLIBPREFIX = '')
+        env.Replace(SHLIBSUFFIX = '.pyd')
+        
+        # XXX; python25_d.lib is not included in Python for windows, and 
+        # we'll get missing symbols unless we undefine _DEBUG
+        cppdefines = env['CPPDEFINES']
+        cppdefines = [define for define in cppdefines if define != '_DEBUG']
+        env.Replace(CPPDEFINES = cppdefines)
+    else:
+        #env.ParseConfig('python-config --cflags --ldflags --libs')
+        env.AppendUnique(CPPPATH = [distutils.sysconfig.get_python_inc()])
+        env.Replace(SHLIBPREFIX = '')
+        env.Replace(SHLIBSUFFIX = distutils.sysconfig.get_config_vars()['SO'])
+
+    # for debugging
+    #print env.Dump()
+
+
+def exists(env):
+    return 1
diff --git a/src/egl/drivers/Makefile b/src/egl/drivers/Makefile
index 6ce0e6b66d..f0538f563f 100644
--- a/src/egl/drivers/Makefile
+++ b/src/egl/drivers/Makefile
@@ -3,27 +3,10 @@
 TOP = ../../..
 include $(TOP)/configs/current
 
+SUBDIRS = $(EGL_DRIVERS_DIRS)
 
-SUBDIRS = demo dri xdri
-
-
-default: dri_subdirs
-
-
-# (UNUSED) depending on $DRIVER_DIRS...
-conditional_subdirs:
-	@if [ "${DRIVER_DIRS}" = "dri" ] ; then \
-		$(MAKE) dri_subdirs ; \
-	fi
-
-
-dri_subdirs:
-	@ (cd dri ; $(MAKE)) || exit 1
-	@ (cd xdri ; $(MAKE)) || exit 1
-
-demo_subdir:
-	@ (cd demo ; $(MAKE)) || exit 1
 
+default: subdirs
 
 
 subdirs:
diff --git a/src/egl/drivers/xdri/egl_xdri.c b/src/egl/drivers/xdri/egl_xdri.c
index dfb491958b..3681d9879a 100644
--- a/src/egl/drivers/xdri/egl_xdri.c
+++ b/src/egl/drivers/xdri/egl_xdri.c
@@ -181,6 +181,10 @@ get_drawable_size(Display *dpy, Drawable d, uint *width, uint *height)
 static void
 create_configs(_EGLDisplay *disp, __GLXdisplayPrivate *glx_priv)
 {
+   static const EGLint all_apis = (EGL_OPENGL_ES_BIT |
+                                   EGL_OPENGL_ES2_BIT |
+                                   EGL_OPENVG_BIT |
+                                   EGL_OPENGL_BIT);
    __GLXscreenConfigs *scrn = glx_priv->screenConfigs;
    const __GLcontextModes *m;
    int id = 1;
@@ -199,8 +203,12 @@ create_configs(_EGLDisplay *disp, __GLXdisplayPrivate *glx_priv)
          SET_CONFIG_ATTRIB(&config->Base, EGL_ALPHA_SIZE, m->alphaBits);
          SET_CONFIG_ATTRIB(&config->Base, EGL_DEPTH_SIZE, m->depthBits);
          SET_CONFIG_ATTRIB(&config->Base, EGL_STENCIL_SIZE, m->stencilBits);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_SAMPLES, m->samples);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_SAMPLE_BUFFERS, m->sampleBuffers);
          SET_CONFIG_ATTRIB(&config->Base, EGL_NATIVE_VISUAL_ID, m->visualID);
          SET_CONFIG_ATTRIB(&config->Base, EGL_NATIVE_VISUAL_TYPE, m->visualType);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_CONFORMANT, all_apis);
+         SET_CONFIG_ATTRIB(&config->Base, EGL_RENDERABLE_TYPE, all_apis);
          /* XXX only window rendering allowed ATM */
          SET_CONFIG_ATTRIB(&config->Base, EGL_SURFACE_TYPE, EGL_WINDOW_BIT);
 
@@ -654,7 +662,9 @@ xdri_eglTerminate(_EGLDriver *drv, EGLDisplay dpy)
    _eglLog(_EGL_DEBUG, "XDRI: eglTerminate");
 
    _eglLog(_EGL_DEBUG, "XDRI: Closing %s", xdri_drv->dri_driver_name);
+#if 0
    dlclose(xdri_drv->dri_driver_handle);
+#endif
    xdri_drv->dri_driver_handle = NULL;
 
    free((void*) xdri_drv->dri_driver_name);
@@ -748,15 +758,16 @@ xdri_eglMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface d,
    struct xdri_egl_context *xdri_ctx = lookup_context(context);
    struct xdri_egl_surface *xdri_draw = lookup_surface(d);
    struct xdri_egl_surface *xdri_read = lookup_surface(r);
-   __DRIid draw = xdri_draw->driDrawable;
-   __DRIid read = xdri_read->driDrawable;
+   __DRIid draw = xdri_draw ? xdri_draw->driDrawable : 0;
+   __DRIid read = xdri_read ? xdri_read->driDrawable : 0;
    int scrn = DefaultScreen(disp->Xdpy);
 
    if (!_eglMakeCurrent(drv, dpy, d, r, context))
       return EGL_FALSE;
 
 
-   if (!xdri_ctx->driContext.bindContext(disp->Xdpy, scrn, draw, read,
+   if (xdri_ctx &&
+       !xdri_ctx->driContext.bindContext(disp->Xdpy, scrn, draw, read,
                                          &xdri_ctx->driContext)) {
       return EGL_FALSE;
    }
diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c
index affa6aa85c..d02e3500ff 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_debug.c
@@ -109,7 +109,7 @@ static const uint8_t random_pattern[32] = {
 static INLINE void 
 fill_random_pattern(uint8_t *dst, size_t size)
 {
-   unsigned i = 0;
+   size_t i = 0;
    while(size--) {
       *dst++ = random_pattern[i++];
       i &= sizeof(random_pattern) - 1;
@@ -118,15 +118,21 @@ fill_random_pattern(uint8_t *dst, size_t size)
 
 
 static INLINE boolean 
-check_random_pattern(const uint8_t *dst, size_t size) 
+check_random_pattern(const uint8_t *dst, size_t size, 
+                     size_t *min_ofs, size_t *max_ofs) 
 {
-   unsigned i = 0;
-   while(size--) {
-      if(*dst++ != random_pattern[i++])
-	 return FALSE;
-      i &= sizeof(random_pattern) - 1;
+   boolean result = TRUE;
+   size_t i;
+   *min_ofs = size;
+   *max_ofs = 0;
+   for(i = 0; i < size; ++i) {
+      if(*dst++ != random_pattern[i % sizeof(random_pattern)]) {
+         *min_ofs = MIN2(*min_ofs, i);
+         *max_ofs = MIN2(*max_ofs, i);
+	 result = FALSE;
+      }
    }
-   return TRUE;
+   return result;
 }
 
 
@@ -141,15 +147,28 @@ pb_debug_buffer_destroy(struct pb_buffer *_buf)
    map = pb_map(buf->buffer, PIPE_BUFFER_USAGE_CPU_READ);
    assert(map);
    if(map) {
-      if(!check_random_pattern(map, buf->underflow_size)) {
-	 debug_error("buffer underflow detected\n");
-	 debug_assert(0);
+      boolean underflow, overflow;
+      size_t min_ofs, max_ofs;
+      
+      underflow = !check_random_pattern(map, buf->underflow_size, 
+                                        &min_ofs, &max_ofs);
+      if(underflow) {
+	 debug_printf("buffer underflow (%u of %u bytes) detected\n",
+	              buf->underflow_size - min_ofs,
+	              buf->underflow_size);
       }
-      if(!check_random_pattern(map + buf->underflow_size + buf->base.base.size, 
-                               buf->overflow_size)) {
-	 debug_error("buffer overflow detected\n");
-	 debug_assert(0);
+      
+      overflow = !check_random_pattern(map + buf->underflow_size + buf->base.base.size, 
+                                       buf->overflow_size, 
+                                       &min_ofs, &max_ofs);
+      if(overflow) {
+         debug_printf("buffer overflow (%u of %u bytes) detected\n",
+                      max_ofs,
+                      buf->overflow_size);
       }
+      
+      debug_assert(!underflow && !overflow);
+      
       pb_unmap(buf->buffer);
    }
 
diff --git a/src/gallium/auxiliary/tgsi/Makefile b/src/gallium/auxiliary/tgsi/Makefile
index 5555639b70..9c4b967651 100644
--- a/src/gallium/auxiliary/tgsi/Makefile
+++ b/src/gallium/auxiliary/tgsi/Makefile
@@ -6,6 +6,7 @@ LIBNAME = tgsi
 C_SOURCES = \
 	exec/tgsi_exec.c \
 	exec/tgsi_sse2.c \
+	util/tgsi_iterate.c \
 	util/tgsi_build.c \
 	util/tgsi_dump.c \
 	util/tgsi_parse.c \
diff --git a/src/gallium/auxiliary/tgsi/SConscript b/src/gallium/auxiliary/tgsi/SConscript
index b62c8efe02..3bbfa1be54 100644
--- a/src/gallium/auxiliary/tgsi/SConscript
+++ b/src/gallium/auxiliary/tgsi/SConscript
@@ -7,7 +7,10 @@ tgsi = env.ConvenienceLibrary(
 		'exec/tgsi_sse2.c',
 		'util/tgsi_build.c',
 		'util/tgsi_dump.c',
+		'util/tgsi_dump_c.c',
+		'util/tgsi_iterate.c',
 		'util/tgsi_parse.c',
+		'util/tgsi_sanity.c',
 		'util/tgsi_scan.c',
 		'util/tgsi_text.c',
 		'util/tgsi_transform.c',
diff --git a/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c b/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c
index 46949661af..001a4c4b15 100644
--- a/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c
@@ -2400,7 +2400,8 @@ exec_instruction(
       /* Restore ContMask, but don't pop */
       assert(mach->ContStackTop > 0);
       mach->ContMask = mach->ContStack[mach->ContStackTop - 1];
-      if (mach->LoopMask) {
+      UPDATE_EXEC_MASK(mach);
+      if (mach->ExecMask) {
          /* repeat loop: jump to instruction just past BGNLOOP */
          *pc = inst->InstructionExtLabel.Label + 1;
       }
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_dump.c b/src/gallium/auxiliary/tgsi/util/tgsi_dump.c
index 0cf4454f25..94180f7e50 100644
--- a/src/gallium/auxiliary/tgsi/util/tgsi_dump.c
+++ b/src/gallium/auxiliary/tgsi/util/tgsi_dump.c
@@ -1,6 +1,6 @@
 /**************************************************************************
  * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -26,25 +26,26 @@
  **************************************************************************/
 
 #include "pipe/p_debug.h"
-#include "pipe/p_util.h"
-#include "pipe/p_shader_tokens.h"
-#include "util/u_string.h"
 #include "tgsi_dump.h"
-#include "tgsi_parse.h"
-#include "tgsi_build.h"
+#include "tgsi_iterate.h"
+
+struct dump_ctx
+{
+   struct tgsi_iterate_context iter;
+
+   uint instno;
+};
 
 static void
 dump_enum(
-   const unsigned    e,
-   const char        **enums,
-   const unsigned    enums_count )
+   uint e,
+   const char **enums,
+   uint enum_count )
 {
-   if (e >= enums_count) {
+   if (e >= enum_count)
       debug_printf( "%u", e );
-   }
-   else {
+   else
       debug_printf( "%s", enums[e] );
-   }
 }
 
 #define EOL()           debug_printf( "\n" )
@@ -56,40 +57,14 @@ dump_enum(
 #define FLT(F)          debug_printf( "%10.4f", F )
 #define ENM(E,ENUMS)    dump_enum( E, ENUMS, sizeof( ENUMS ) / sizeof( *ENUMS ) )
 
-static const char *TGSI_PROCESSOR_TYPES[] =
-{
-   "PROCESSOR_FRAGMENT",
-   "PROCESSOR_VERTEX",
-   "PROCESSOR_GEOMETRY"
-};
-
-static const char *TGSI_PROCESSOR_TYPES_SHORT[] =
+static const char *processor_type_names[] =
 {
    "FRAG",
    "VERT",
    "GEOM"
 };
 
-static const char *TGSI_TOKEN_TYPES[] =
-{
-   "TOKEN_TYPE_DECLARATION",
-   "TOKEN_TYPE_IMMEDIATE",
-   "TOKEN_TYPE_INSTRUCTION"
-};
-
-static const char *TGSI_FILES[] =
-{
-   "FILE_NULL",
-   "FILE_CONSTANT",
-   "FILE_INPUT",
-   "FILE_OUTPUT",
-   "FILE_TEMPORARY",
-   "FILE_SAMPLER",
-   "FILE_ADDRESS",
-   "FILE_IMMEDIATE"
-};
-
-static const char *TGSI_FILES_SHORT[] =
+static const char *file_names[] =
 {
    "NULL",
    "CONST",
@@ -101,39 +76,14 @@ static const char *TGSI_FILES_SHORT[] =
    "IMM"
 };
 
-static const char *TGSI_DECLARES[] =
-{
-   "DECLARE_RANGE",
-   "DECLARE_MASK"
-};
-
-static const char *TGSI_INTERPOLATES[] =
-{
-   "INTERPOLATE_CONSTANT",
-   "INTERPOLATE_LINEAR",
-   "INTERPOLATE_PERSPECTIVE",
-   "INTERPOLATE_ATTRIB"
-};
-
-static const char *TGSI_INTERPOLATES_SHORT[] =
+static const char *interpolate_names[] =
 {
    "CONSTANT",
    "LINEAR",
    "PERSPECTIVE"
 };
 
-static const char *TGSI_SEMANTICS[] =
-{
-   "SEMANTIC_POSITION",
-   "SEMANTIC_COLOR",
-   "SEMANTIC_BCOLOR",
-   "SEMANTIC_FOG",
-   "SEMANTIC_PSIZE",
-   "SEMANTIC_GENERIC",
-   "SEMANTIC_NORMAL"
-};
-
-static const char *TGSI_SEMANTICS_SHORT[] =
+static const char *semantic_names[] =
 {
    "POSITION",
    "COLOR",
@@ -144,139 +94,12 @@ static const char *TGSI_SEMANTICS_SHORT[] =
    "NORMAL"
 };
 
-static const char *TGSI_IMMS[] =
-{
-   "IMM_FLOAT32"
-};
-
-static const char *TGSI_IMMS_SHORT[] =
+static const char *immediate_type_names[] =
 {
    "FLT32"
 };
 
-static const char *TGSI_OPCODES[TGSI_OPCODE_LAST] =
-{
-   "OPCODE_ARL",
-   "OPCODE_MOV",
-   "OPCODE_LIT",
-   "OPCODE_RCP",
-   "OPCODE_RSQ",
-   "OPCODE_EXP",
-   "OPCODE_LOG",
-   "OPCODE_MUL",
-   "OPCODE_ADD",
-   "OPCODE_DP3",
-   "OPCODE_DP4",
-   "OPCODE_DST",
-   "OPCODE_MIN",
-   "OPCODE_MAX",
-   "OPCODE_SLT",
-   "OPCODE_SGE",
-   "OPCODE_MAD",
-   "OPCODE_SUB",
-   "OPCODE_LERP",
-   "OPCODE_CND",
-   "OPCODE_CND0",
-   "OPCODE_DOT2ADD",
-   "OPCODE_INDEX",
-   "OPCODE_NEGATE",
-   "OPCODE_FRAC",
-   "OPCODE_CLAMP",
-   "OPCODE_FLOOR",
-   "OPCODE_ROUND",
-   "OPCODE_EXPBASE2",
-   "OPCODE_LOGBASE2",
-   "OPCODE_POWER",
-   "OPCODE_CROSSPRODUCT",
-   "OPCODE_MULTIPLYMATRIX",
-   "OPCODE_ABS",
-   "OPCODE_RCC",
-   "OPCODE_DPH",
-   "OPCODE_COS",
-   "OPCODE_DDX",
-   "OPCODE_DDY",
-   "OPCODE_KILP",
-   "OPCODE_PK2H",
-   "OPCODE_PK2US",
-   "OPCODE_PK4B",
-   "OPCODE_PK4UB",
-   "OPCODE_RFL",
-   "OPCODE_SEQ",
-   "OPCODE_SFL",
-   "OPCODE_SGT",
-   "OPCODE_SIN",
-   "OPCODE_SLE",
-   "OPCODE_SNE",
-   "OPCODE_STR",
-   "OPCODE_TEX",
-   "OPCODE_TXD",
-   "OPCODE_TXP",
-   "OPCODE_UP2H",
-   "OPCODE_UP2US",
-   "OPCODE_UP4B",
-   "OPCODE_UP4UB",
-   "OPCODE_X2D",
-   "OPCODE_ARA",
-   "OPCODE_ARR",
-   "OPCODE_BRA",
-   "OPCODE_CAL",
-   "OPCODE_RET",
-   "OPCODE_SSG",
-   "OPCODE_CMP",
-   "OPCODE_SCS",
-   "OPCODE_TXB",
-   "OPCODE_NRM",
-   "OPCODE_DIV",
-   "OPCODE_DP2",
-   "OPCODE_TXL",
-   "OPCODE_BRK",
-   "OPCODE_IF",
-   "OPCODE_LOOP",
-   "OPCODE_REP",
-   "OPCODE_ELSE",
-   "OPCODE_ENDIF",
-   "OPCODE_ENDLOOP",
-   "OPCODE_ENDREP",
-   "OPCODE_PUSHA",
-   "OPCODE_POPA",
-   "OPCODE_CEIL",
-   "OPCODE_I2F",
-   "OPCODE_NOT",
-   "OPCODE_TRUNC",
-   "OPCODE_SHL",
-   "OPCODE_SHR",
-   "OPCODE_AND",
-   "OPCODE_OR",
-   "OPCODE_MOD",
-   "OPCODE_XOR",
-   "OPCODE_SAD",
-   "OPCODE_TXF",
-   "OPCODE_TXQ",
-   "OPCODE_CONT",
-   "OPCODE_EMIT",
-   "OPCODE_ENDPRIM",
-   "OPCODE_BGNLOOP2",
-   "OPCODE_BGNSUB",
-   "OPCODE_ENDLOOP2",
-   "OPCODE_ENDSUB",
-   "OPCODE_NOISE1",
-   "OPCODE_NOISE2",
-   "OPCODE_NOISE3",
-   "OPCODE_NOISE4",
-   "OPCODE_NOP",
-   "OPCODE_M4X3",
-   "OPCODE_M3X4",
-   "OPCODE_M3X3",
-   "OPCODE_M3X2",
-   "OPCODE_NRM4",
-   "OPCODE_CALLNZ",
-   "OPCODE_IFC",
-   "OPCODE_BREAKC",
-   "OPCODE_KIL",
-   "OPCODE_END"
-};
-
-static const char *TGSI_OPCODES_SHORT[TGSI_OPCODE_LAST] =
+static const char *opcode_names[TGSI_OPCODE_LAST] =
 {
    "ARL",
    "MOV",
@@ -399,50 +222,7 @@ static const char *TGSI_OPCODES_SHORT[TGSI_OPCODE_LAST] =
    "SWZ"
 };
 
-static const char *TGSI_SATS[] =
-{
-   "SAT_NONE",
-   "SAT_ZERO_ONE",
-   "SAT_MINUS_PLUS_ONE"
-};
-
-static const char *TGSI_INSTRUCTION_EXTS[] =
-{
-   "INSTRUCTION_EXT_TYPE_NV",
-   "INSTRUCTION_EXT_TYPE_LABEL",
-   "INSTRUCTION_EXT_TYPE_TEXTURE"
-};
-
-static const char *TGSI_PRECISIONS[] =
-{
-   "PRECISION_DEFAULT",
-   "TGSI_PRECISION_FLOAT32",
-   "TGSI_PRECISION_FLOAT16",
-   "TGSI_PRECISION_FIXED12"
-};
-
-static const char *TGSI_CCS[] =
-{
-   "CC_GT",
-   "CC_EQ",
-   "CC_LT",
-   "CC_UN",
-   "CC_GE",
-   "CC_LE",
-   "CC_NE",
-   "CC_TR",
-   "CC_FL"
-};
-
-static const char *TGSI_SWIZZLES[] =
-{
-   "SWIZZLE_X",
-   "SWIZZLE_Y",
-   "SWIZZLE_Z",
-   "SWIZZLE_W"
-};
-
-static const char *TGSI_SWIZZLES_SHORT[] =
+static const char *swizzle_names[] =
 {
    "x",
    "y",
@@ -450,20 +230,7 @@ static const char *TGSI_SWIZZLES_SHORT[] =
    "w"
 };
 
-static const char *TGSI_TEXTURES[] =
-{
-   "TEXTURE_UNKNOWN",
-   "TEXTURE_1D",
-   "TEXTURE_2D",
-   "TEXTURE_3D",
-   "TEXTURE_CUBE",
-   "TEXTURE_RECT",
-   "TEXTURE_SHADOW1D",
-   "TEXTURE_SHADOW2D",
-   "TEXTURE_SHADOWRECT"
-};
-
-static const char *TGSI_TEXTURES_SHORT[] =
+static const char *texture_names[] =
 {
    "UNKNOWN",
    "1D",
@@ -476,23 +243,7 @@ static const char *TGSI_TEXTURES_SHORT[] =
    "SHADOWRECT"
 };
 
-static const char *TGSI_SRC_REGISTER_EXTS[] =
-{
-   "SRC_REGISTER_EXT_TYPE_SWZ",
-   "SRC_REGISTER_EXT_TYPE_MOD"
-};
-
-static const char *TGSI_EXTSWIZZLES[] =
-{
-   "EXTSWIZZLE_X",
-   "EXTSWIZZLE_Y",
-   "EXTSWIZZLE_Z",
-   "EXTSWIZZLE_W",
-   "EXTSWIZZLE_ZERO",
-   "EXTSWIZZLE_ONE"
-};
-
-static const char *TGSI_EXTSWIZZLES_SHORT[] =
+static const char *extswizzle_names[] =
 {
    "x",
    "y",
@@ -502,44 +253,7 @@ static const char *TGSI_EXTSWIZZLES_SHORT[] =
    "1"
 };
 
-static const char *TGSI_WRITEMASKS[] =
-{
-   "0",
-   "WRITEMASK_X",
-   "WRITEMASK_Y",
-   "WRITEMASK_XY",
-   "WRITEMASK_Z",
-   "WRITEMASK_XZ",
-   "WRITEMASK_YZ",
-   "WRITEMASK_XYZ",
-   "WRITEMASK_W",
-   "WRITEMASK_XW",
-   "WRITEMASK_YW",
-   "WRITEMASK_XYW",
-   "WRITEMASK_ZW",
-   "WRITEMASK_XZW",
-   "WRITEMASK_YZW",
-   "WRITEMASK_XYZW"
-};
-
-static const char *TGSI_DST_REGISTER_EXTS[] =
-{
-   "DST_REGISTER_EXT_TYPE_CONDCODE",
-   "DST_REGISTER_EXT_TYPE_MODULATE"
-};
-
-static const char *TGSI_MODULATES[] =
-{
-   "MODULATE_1X",
-   "MODULATE_2X",
-   "MODULATE_4X",
-   "MODULATE_8X",
-   "MODULATE_HALF",
-   "MODULATE_QUARTER",
-   "MODULATE_EIGHTH"
-};
-
-static const char *TGSI_MODULATES_SHORT[TGSI_MODULATE_COUNT] =
+static const char *modulate_names[TGSI_MODULATE_COUNT] =
 {
    "",
    "_2X",
@@ -550,40 +264,86 @@ static const char *TGSI_MODULATES_SHORT[TGSI_MODULATE_COUNT] =
    "_D8"
 };
 
-void
-tgsi_dump_declaration(
-   const struct tgsi_full_declaration  *decl )
+static void
+_dump_register_prefix(
+   uint file,
+   uint first,
+   uint last )
 {
-   TXT( "\nDCL " );
-   ENM( decl->Declaration.File, TGSI_FILES_SHORT );
+   
+   
+}
 
+static void
+_dump_register(
+   uint file,
+   int first,
+   int last )
+{
+   ENM( file, file_names );
    CHR( '[' );
-   UID( decl->DeclarationRange.First );
-   if (decl->DeclarationRange.First != decl->DeclarationRange.Last) {
+   SID( first );
+   if (first != last) {
       TXT( ".." );
-      UID( decl->DeclarationRange.Last );
+      SID( last );
    }
    CHR( ']' );
+}
+
+static void
+_dump_register_ind(
+   uint file,
+   int index,
+   uint ind_file,
+   int ind_index )
+{
+   ENM( file, file_names );
+   CHR( '[' );
+   ENM( ind_file, file_names );
+   CHR( '[' );
+   SID( ind_index );
+   CHR( ']' );
+   if (index != 0) {
+      if (index > 0)
+         CHR( '+' );
+      SID( index );
+   }
+   CHR( ']' );
+}
 
-   if( decl->Declaration.UsageMask != TGSI_WRITEMASK_XYZW ) {
+static void
+_dump_writemask(
+   uint writemask )
+{
+   if (writemask != TGSI_WRITEMASK_XYZW) {
       CHR( '.' );
-      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_X ) {
+      if (writemask & TGSI_WRITEMASK_X)
          CHR( 'x' );
-      }
-      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_Y ) {
+      if (writemask & TGSI_WRITEMASK_Y)
          CHR( 'y' );
-      }
-      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_Z ) {
+      if (writemask & TGSI_WRITEMASK_Z)
          CHR( 'z' );
-      }
-      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_W ) {
+      if (writemask & TGSI_WRITEMASK_W)
          CHR( 'w' );
-      }
    }
+}
+
+void
+tgsi_dump_declaration(
+   const struct tgsi_full_declaration *decl )
+{
+   TXT( "\nDCL " );
+
+   _dump_register(
+      decl->Declaration.File,
+      decl->DeclarationRange.First,
+      decl->DeclarationRange.Last );
+   _dump_writemask(
+      decl->Declaration.UsageMask );
 
    if (decl->Declaration.Semantic) {
       TXT( ", " );
-      ENM( decl->Semantic.SemanticName, TGSI_SEMANTICS_SHORT );
+      ENM( decl->Semantic.SemanticName, semantic_names );
       if (decl->Semantic.SemanticIndex != 0 ||
           decl->Semantic.SemanticName == TGSI_SEMANTIC_GENERIC) {
          CHR( '[' );
@@ -593,134 +353,66 @@ tgsi_dump_declaration(
    }
 
    TXT( ", " );
-   ENM( decl->Declaration.Interpolate, TGSI_INTERPOLATES_SHORT );
+   ENM( decl->Declaration.Interpolate, interpolate_names );
 }
 
-static void
-dump_declaration_verbose(
-   struct tgsi_full_declaration  *decl,
-   unsigned                      ignored,
-   unsigned                      deflt,
-   struct tgsi_full_declaration  *fd )
+static boolean
+iter_declaration(
+   struct tgsi_iterate_context *iter,
+   struct tgsi_full_declaration *decl )
 {
-   TXT( "\nFile       : " );
-   ENM( decl->Declaration.File, TGSI_FILES );
-   if( deflt || fd->Declaration.UsageMask != decl->Declaration.UsageMask ) {
-      TXT( "\nUsageMask  : " );
-      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_X ) {
-         CHR( 'X' );
-      }
-      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_Y ) {
-         CHR( 'Y' );
-      }
-      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_Z ) {
-         CHR( 'Z' );
-      }
-      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_W ) {
-         CHR( 'W' );
-      }
-   }
-   if( deflt || fd->Declaration.Interpolate != decl->Declaration.Interpolate ) {
-      TXT( "\nInterpolate: " );
-      ENM( decl->Declaration.Interpolate, TGSI_INTERPOLATES );
-   }
-   if( deflt || fd->Declaration.Semantic != decl->Declaration.Semantic ) {
-      TXT( "\nSemantic   : " );
-      UID( decl->Declaration.Semantic );
-   }
-   if( ignored ) {
-      TXT( "\nPadding    : " );
-      UIX( decl->Declaration.Padding );
-   }
-
-   EOL();
-   TXT( "\nFirst: " );
-   UID( decl->DeclarationRange.First );
-   TXT( "\nLast : " );
-   UID( decl->DeclarationRange.Last );
-
-   if( decl->Declaration.Semantic ) {
-      EOL();
-      TXT( "\nSemanticName : " );
-      ENM( decl->Semantic.SemanticName, TGSI_SEMANTICS );
-      TXT( "\nSemanticIndex: " );
-      UID( decl->Semantic.SemanticIndex );
-      if( ignored ) {
-         TXT( "\nPadding      : " );
-         UIX( decl->Semantic.Padding );
-      }
-   }
+   tgsi_dump_declaration( decl );
+   return TRUE;
 }
 
 void
 tgsi_dump_immediate(
    const struct tgsi_full_immediate *imm )
 {
-   unsigned i;
+   uint i;
 
    TXT( "\nIMM " );
-   ENM( imm->Immediate.DataType, TGSI_IMMS_SHORT );
+   ENM( imm->Immediate.DataType, immediate_type_names );
 
    TXT( " { " );
-   for( i = 0; i < imm->Immediate.Size - 1; i++ ) {
-      switch( imm->Immediate.DataType ) {
+   for (i = 0; i < imm->Immediate.Size - 1; i++) {
+      switch (imm->Immediate.DataType) {
       case TGSI_IMM_FLOAT32:
          FLT( imm->u.ImmediateFloat32[i].Float );
          break;
-
       default:
          assert( 0 );
       }
 
-      if( i < imm->Immediate.Size - 2 ) {
+      if (i < imm->Immediate.Size - 2)
          TXT( ", " );
-      }
    }
    TXT( " }" );
 }
 
-static void
-dump_immediate_verbose(
-   struct tgsi_full_immediate *imm,
-   unsigned                   ignored )
+static boolean
+iter_immediate(
+   struct tgsi_iterate_context *iter,
+   struct tgsi_full_immediate *imm )
 {
-   unsigned i;
-
-   TXT( "\nDataType   : " );
-   ENM( imm->Immediate.DataType, TGSI_IMMS );
-   if( ignored ) {
-      TXT( "\nPadding    : " );
-      UIX( imm->Immediate.Padding );
-   }
-
-   for( i = 0; i < imm->Immediate.Size - 1; i++ ) {
-      EOL();
-      switch( imm->Immediate.DataType ) {
-      case TGSI_IMM_FLOAT32:
-         TXT( "\nFloat: " );
-         FLT( imm->u.ImmediateFloat32[i].Float );
-         break;
-
-      default:
-         assert( 0 );
-      }
-   }
+   tgsi_dump_immediate( imm );
+   return TRUE;
 }
 
 void
 tgsi_dump_instruction(
-   const struct tgsi_full_instruction  *inst,
-   unsigned                      instno )
+   const struct tgsi_full_instruction *inst,
+   uint instno )
 {
-   unsigned i;
-   boolean  first_reg = TRUE;
+   uint i;
+   boolean first_reg = TRUE;
 
    EOL();
    UID( instno );
    CHR( ':' );
-   ENM( inst->Instruction.Opcode, TGSI_OPCODES_SHORT );
+   ENM( inst->Instruction.Opcode, opcode_names );
 
-   switch( inst->Instruction.Saturate ) {
+   switch (inst->Instruction.Saturate) {
    case TGSI_SAT_NONE:
       break;
    case TGSI_SAT_ZERO_ONE:
@@ -733,47 +425,28 @@ tgsi_dump_instruction(
       assert( 0 );
    }
 
-   for( i = 0; i < inst->Instruction.NumDstRegs; i++ ) {
+   for (i = 0; i < inst->Instruction.NumDstRegs; i++) {
       const struct tgsi_full_dst_register *dst = &inst->FullDstRegisters[i];
 
-      if( !first_reg ) {
+      if (!first_reg)
          CHR( ',' );
-      }
       CHR( ' ' );
 
-      ENM( dst->DstRegister.File, TGSI_FILES_SHORT );
-
-      CHR( '[' );
-      SID( dst->DstRegister.Index );
-      CHR( ']' );
-
-      ENM( dst->DstRegisterExtModulate.Modulate, TGSI_MODULATES_SHORT );
-
-      if( dst->DstRegister.WriteMask != TGSI_WRITEMASK_XYZW ) {
-         CHR( '.' );
-         if( dst->DstRegister.WriteMask & TGSI_WRITEMASK_X ) {
-            CHR( 'x' );
-         }
-         if( dst->DstRegister.WriteMask & TGSI_WRITEMASK_Y ) {
-            CHR( 'y' );
-         }
-         if( dst->DstRegister.WriteMask & TGSI_WRITEMASK_Z ) {
-            CHR( 'z' );
-         }
-         if( dst->DstRegister.WriteMask & TGSI_WRITEMASK_W ) {
-            CHR( 'w' );
-         }
-      }
+      _dump_register(
+         dst->DstRegister.File,
+         dst->DstRegister.Index,
+         dst->DstRegister.Index );
+      ENM( dst->DstRegisterExtModulate.Modulate, modulate_names );
+      _dump_writemask( dst->DstRegister.WriteMask );
 
       first_reg = FALSE;
    }
 
-   for( i = 0; i < inst->Instruction.NumSrcRegs; i++ ) {
+   for (i = 0; i < inst->Instruction.NumSrcRegs; i++) {
       const struct tgsi_full_src_register *src = &inst->FullSrcRegisters[i];
 
-      if( !first_reg ) {
+      if (!first_reg)
          CHR( ',' );
-      }
       CHR( ' ' );
 
       if (src->SrcRegisterExtMod.Negate)
@@ -789,40 +462,39 @@ tgsi_dump_instruction(
       if (src->SrcRegister.Negate)
          CHR( '-' );
 
-      ENM( src->SrcRegister.File, TGSI_FILES_SHORT );
-
-      CHR( '[' );
       if (src->SrcRegister.Indirect) {
-         TXT( "ADDR[0]" );
-         if (src->SrcRegister.Index != 0) {
-            if (src->SrcRegister.Index > 0)
-               CHR( '+' );
-            SID( src->SrcRegister.Index );
-         }
+         _dump_register_ind(
+            src->SrcRegister.File,
+            src->SrcRegister.Index,
+            src->SrcRegisterInd.File,
+            src->SrcRegisterInd.Index );
+      }
+      else {
+         _dump_register(
+            src->SrcRegister.File,
+            src->SrcRegister.Index,
+            src->SrcRegister.Index );
       }
-      else
-         SID( src->SrcRegister.Index );
-      CHR( ']' );
 
       if (src->SrcRegister.SwizzleX != TGSI_SWIZZLE_X ||
           src->SrcRegister.SwizzleY != TGSI_SWIZZLE_Y ||
           src->SrcRegister.SwizzleZ != TGSI_SWIZZLE_Z ||
           src->SrcRegister.SwizzleW != TGSI_SWIZZLE_W) {
          CHR( '.' );
-         ENM( src->SrcRegister.SwizzleX, TGSI_SWIZZLES_SHORT );
-         ENM( src->SrcRegister.SwizzleY, TGSI_SWIZZLES_SHORT );
-         ENM( src->SrcRegister.SwizzleZ, TGSI_SWIZZLES_SHORT );
-         ENM( src->SrcRegister.SwizzleW, TGSI_SWIZZLES_SHORT );
+         ENM( src->SrcRegister.SwizzleX, swizzle_names );
+         ENM( src->SrcRegister.SwizzleY, swizzle_names );
+         ENM( src->SrcRegister.SwizzleZ, swizzle_names );
+         ENM( src->SrcRegister.SwizzleW, swizzle_names );
       }
       if (src->SrcRegisterExtSwz.ExtSwizzleX != TGSI_EXTSWIZZLE_X ||
           src->SrcRegisterExtSwz.ExtSwizzleY != TGSI_EXTSWIZZLE_Y ||
           src->SrcRegisterExtSwz.ExtSwizzleZ != TGSI_EXTSWIZZLE_Z ||
           src->SrcRegisterExtSwz.ExtSwizzleW != TGSI_EXTSWIZZLE_W) {
          CHR( '.' );
-         ENM( src->SrcRegisterExtSwz.ExtSwizzleX, TGSI_EXTSWIZZLES_SHORT );
-         ENM( src->SrcRegisterExtSwz.ExtSwizzleY, TGSI_EXTSWIZZLES_SHORT );
-         ENM( src->SrcRegisterExtSwz.ExtSwizzleZ, TGSI_EXTSWIZZLES_SHORT );
-         ENM( src->SrcRegisterExtSwz.ExtSwizzleW, TGSI_EXTSWIZZLES_SHORT );
+         ENM( src->SrcRegisterExtSwz.ExtSwizzleX, extswizzle_names );
+         ENM( src->SrcRegisterExtSwz.ExtSwizzleY, extswizzle_names );
+         ENM( src->SrcRegisterExtSwz.ExtSwizzleZ, extswizzle_names );
+         ENM( src->SrcRegisterExtSwz.ExtSwizzleW, extswizzle_names );
       }
 
       if (src->SrcRegisterExtMod.Complement)
@@ -841,10 +513,10 @@ tgsi_dump_instruction(
 
    if (inst->InstructionExtTexture.Texture != TGSI_TEXTURE_UNKNOWN) {
       TXT( ", " );
-      ENM( inst->InstructionExtTexture.Texture, TGSI_TEXTURES_SHORT );
+      ENM( inst->InstructionExtTexture.Texture, texture_names );
    }
 
-   switch( inst->Instruction.Opcode ) {
+   switch (inst->Instruction.Opcode) {
    case TGSI_OPCODE_IF:
    case TGSI_OPCODE_ELSE:
    case TGSI_OPCODE_BGNLOOP2:
@@ -856,461 +528,47 @@ tgsi_dump_instruction(
    }
 }
 
-static void
-dump_instruction_verbose(
-   struct tgsi_full_instruction  *inst,
-   unsigned                      ignored,
-   unsigned                      deflt,
-   struct tgsi_full_instruction  *fi )
+static boolean
+iter_instruction(
+   struct tgsi_iterate_context *iter,
+   struct tgsi_full_instruction *inst )
 {
-   unsigned i;
-
-   TXT( "\nOpcode     : " );
-   ENM( inst->Instruction.Opcode, TGSI_OPCODES );
-   if( deflt || fi->Instruction.Saturate != inst->Instruction.Saturate ) {
-      TXT( "\nSaturate   : " );
-      ENM( inst->Instruction.Saturate, TGSI_SATS );
-   }
-   if( deflt || fi->Instruction.NumDstRegs != inst->Instruction.NumDstRegs ) {
-      TXT( "\nNumDstRegs : " );
-      UID( inst->Instruction.NumDstRegs );
-   }
-   if( deflt || fi->Instruction.NumSrcRegs != inst->Instruction.NumSrcRegs ) {
-      TXT( "\nNumSrcRegs : " );
-      UID( inst->Instruction.NumSrcRegs );
-   }
-   if( ignored ) {
-      TXT( "\nPadding    : " );
-      UIX( inst->Instruction.Padding );
-   }
-
-   if( deflt || tgsi_compare_instruction_ext_nv( inst->InstructionExtNv, fi->InstructionExtNv ) ) {
-      EOL();
-      TXT( "\nType          : " );
-      ENM( inst->InstructionExtNv.Type, TGSI_INSTRUCTION_EXTS );
-      if( deflt || fi->InstructionExtNv.Precision != inst->InstructionExtNv.Precision ) {
-         TXT( "\nPrecision     : " );
-         ENM( inst->InstructionExtNv.Precision, TGSI_PRECISIONS );
-      }
-      if( deflt || fi->InstructionExtNv.CondDstIndex != inst->InstructionExtNv.CondDstIndex ) {
-         TXT( "\nCondDstIndex  : " );
-         UID( inst->InstructionExtNv.CondDstIndex );
-      }
-      if( deflt || fi->InstructionExtNv.CondFlowIndex != inst->InstructionExtNv.CondFlowIndex ) {
-         TXT( "\nCondFlowIndex : " );
-         UID( inst->InstructionExtNv.CondFlowIndex );
-      }
-      if( deflt || fi->InstructionExtNv.CondMask != inst->InstructionExtNv.CondMask ) {
-         TXT( "\nCondMask      : " );
-         ENM( inst->InstructionExtNv.CondMask, TGSI_CCS );
-      }
-      if( deflt || fi->InstructionExtNv.CondSwizzleX != inst->InstructionExtNv.CondSwizzleX ) {
-         TXT( "\nCondSwizzleX  : " );
-         ENM( inst->InstructionExtNv.CondSwizzleX, TGSI_SWIZZLES );
-      }
-      if( deflt || fi->InstructionExtNv.CondSwizzleY != inst->InstructionExtNv.CondSwizzleY ) {
-         TXT( "\nCondSwizzleY  : " );
-         ENM( inst->InstructionExtNv.CondSwizzleY, TGSI_SWIZZLES );
-      }
-      if( deflt || fi->InstructionExtNv.CondSwizzleZ != inst->InstructionExtNv.CondSwizzleZ ) {
-         TXT( "\nCondSwizzleZ  : " );
-         ENM( inst->InstructionExtNv.CondSwizzleZ, TGSI_SWIZZLES );
-      }
-      if( deflt || fi->InstructionExtNv.CondSwizzleW != inst->InstructionExtNv.CondSwizzleW ) {
-         TXT( "\nCondSwizzleW  : " );
-         ENM( inst->InstructionExtNv.CondSwizzleW, TGSI_SWIZZLES );
-      }
-      if( deflt || fi->InstructionExtNv.CondDstUpdate != inst->InstructionExtNv.CondDstUpdate ) {
-         TXT( "\nCondDstUpdate : " );
-         UID( inst->InstructionExtNv.CondDstUpdate );
-      }
-      if( deflt || fi->InstructionExtNv.CondFlowEnable != inst->InstructionExtNv.CondFlowEnable ) {
-         TXT( "\nCondFlowEnable: " );
-         UID( inst->InstructionExtNv.CondFlowEnable );
-      }
-      if( ignored ) {
-         TXT( "\nPadding       : " );
-         UIX( inst->InstructionExtNv.Padding );
-         if( deflt || fi->InstructionExtNv.Extended != inst->InstructionExtNv.Extended ) {
-            TXT( "\nExtended      : " );
-            UID( inst->InstructionExtNv.Extended );
-         }
-      }
-   }
-
-   if( deflt || tgsi_compare_instruction_ext_label( inst->InstructionExtLabel, fi->InstructionExtLabel ) ) {
-      EOL();
-      TXT( "\nType    : " );
-      ENM( inst->InstructionExtLabel.Type, TGSI_INSTRUCTION_EXTS );
-      if( deflt || fi->InstructionExtLabel.Label != inst->InstructionExtLabel.Label ) {
-         TXT( "\nLabel   : " );
-         UID( inst->InstructionExtLabel.Label );
-      }
-      if( ignored ) {
-         TXT( "\nPadding : " );
-         UIX( inst->InstructionExtLabel.Padding );
-         if( deflt || fi->InstructionExtLabel.Extended != inst->InstructionExtLabel.Extended ) {
-            TXT( "\nExtended: " );
-            UID( inst->InstructionExtLabel.Extended );
-         }
-      }
-   }
-
-   if( deflt || tgsi_compare_instruction_ext_texture( inst->InstructionExtTexture, fi->InstructionExtTexture ) ) {
-      EOL();
-      TXT( "\nType    : " );
-      ENM( inst->InstructionExtTexture.Type, TGSI_INSTRUCTION_EXTS );
-      if( deflt || fi->InstructionExtTexture.Texture != inst->InstructionExtTexture.Texture ) {
-         TXT( "\nTexture : " );
-         ENM( inst->InstructionExtTexture.Texture, TGSI_TEXTURES );
-      }
-      if( ignored ) {
-         TXT( "\nPadding : " );
-         UIX( inst->InstructionExtTexture.Padding );
-         if( deflt || fi->InstructionExtTexture.Extended != inst->InstructionExtTexture.Extended ) {
-            TXT( "\nExtended: " );
-            UID( inst->InstructionExtTexture.Extended );
-         }
-      }
-   }
-
-   for( i = 0; i < inst->Instruction.NumDstRegs; i++ ) {
-      struct tgsi_full_dst_register *dst = &inst->FullDstRegisters[i];
-      struct tgsi_full_dst_register *fd = &fi->FullDstRegisters[i];
-
-      EOL();
-      TXT( "\nFile     : " );
-      ENM( dst->DstRegister.File, TGSI_FILES );
-      if( deflt || fd->DstRegister.WriteMask != dst->DstRegister.WriteMask ) {
-         TXT( "\nWriteMask: " );
-         ENM( dst->DstRegister.WriteMask, TGSI_WRITEMASKS );
-      }
-      if( ignored ) {
-         if( deflt || fd->DstRegister.Indirect != dst->DstRegister.Indirect ) {
-            TXT( "\nIndirect : " );
-            UID( dst->DstRegister.Indirect );
-         }
-         if( deflt || fd->DstRegister.Dimension != dst->DstRegister.Dimension ) {
-            TXT( "\nDimension: " );
-            UID( dst->DstRegister.Dimension );
-         }
-      }
-      if( deflt || fd->DstRegister.Index != dst->DstRegister.Index ) {
-         TXT( "\nIndex    : " );
-         SID( dst->DstRegister.Index );
-      }
-      if( ignored ) {
-         TXT( "\nPadding  : " );
-         UIX( dst->DstRegister.Padding );
-         if( deflt || fd->DstRegister.Extended != dst->DstRegister.Extended ) {
-            TXT( "\nExtended : " );
-            UID( dst->DstRegister.Extended );
-         }
-      }
-
-      if( deflt || tgsi_compare_dst_register_ext_concode( dst->DstRegisterExtConcode, fd->DstRegisterExtConcode ) ) {
-         EOL();
-         TXT( "\nType        : " );
-         ENM( dst->DstRegisterExtConcode.Type, TGSI_DST_REGISTER_EXTS );
-         if( deflt || fd->DstRegisterExtConcode.CondMask != dst->DstRegisterExtConcode.CondMask ) {
-            TXT( "\nCondMask    : " );
-            ENM( dst->DstRegisterExtConcode.CondMask, TGSI_CCS );
-         }
-         if( deflt || fd->DstRegisterExtConcode.CondSwizzleX != dst->DstRegisterExtConcode.CondSwizzleX ) {
-            TXT( "\nCondSwizzleX: " );
-            ENM( dst->DstRegisterExtConcode.CondSwizzleX, TGSI_SWIZZLES );
-         }
-         if( deflt || fd->DstRegisterExtConcode.CondSwizzleY != dst->DstRegisterExtConcode.CondSwizzleY ) {
-            TXT( "\nCondSwizzleY: " );
-            ENM( dst->DstRegisterExtConcode.CondSwizzleY, TGSI_SWIZZLES );
-         }
-         if( deflt || fd->DstRegisterExtConcode.CondSwizzleZ != dst->DstRegisterExtConcode.CondSwizzleZ ) {
-            TXT( "\nCondSwizzleZ: " );
-            ENM( dst->DstRegisterExtConcode.CondSwizzleZ, TGSI_SWIZZLES );
-         }
-         if( deflt || fd->DstRegisterExtConcode.CondSwizzleW != dst->DstRegisterExtConcode.CondSwizzleW ) {
-            TXT( "\nCondSwizzleW: " );
-            ENM( dst->DstRegisterExtConcode.CondSwizzleW, TGSI_SWIZZLES );
-         }
-         if( deflt || fd->DstRegisterExtConcode.CondSrcIndex != dst->DstRegisterExtConcode.CondSrcIndex ) {
-            TXT( "\nCondSrcIndex: " );
-            UID( dst->DstRegisterExtConcode.CondSrcIndex );
-         }
-         if( ignored ) {
-            TXT( "\nPadding     : " );
-            UIX( dst->DstRegisterExtConcode.Padding );
-            if( deflt || fd->DstRegisterExtConcode.Extended != dst->DstRegisterExtConcode.Extended ) {
-               TXT( "\nExtended    : " );
-               UID( dst->DstRegisterExtConcode.Extended );
-            }
-         }
-      }
-
-      if( deflt || tgsi_compare_dst_register_ext_modulate( dst->DstRegisterExtModulate, fd->DstRegisterExtModulate ) ) {
-         EOL();
-         TXT( "\nType    : " );
-         ENM( dst->DstRegisterExtModulate.Type, TGSI_DST_REGISTER_EXTS );
-         if( deflt || fd->DstRegisterExtModulate.Modulate != dst->DstRegisterExtModulate.Modulate ) {
-            TXT( "\nModulate: " );
-            ENM( dst->DstRegisterExtModulate.Modulate, TGSI_MODULATES );
-         }
-         if( ignored ) {
-            TXT( "\nPadding : " );
-            UIX( dst->DstRegisterExtModulate.Padding );
-            if( deflt || fd->DstRegisterExtModulate.Extended != dst->DstRegisterExtModulate.Extended ) {
-               TXT( "\nExtended: " );
-               UID( dst->DstRegisterExtModulate.Extended );
-            }
-         }
-      }
-   }
+   struct dump_ctx *ctx = (struct dump_ctx *) iter;
 
-   for( i = 0; i < inst->Instruction.NumSrcRegs; i++ ) {
-      struct tgsi_full_src_register *src = &inst->FullSrcRegisters[i];
-      struct tgsi_full_src_register *fs = &fi->FullSrcRegisters[i];
-
-      EOL();
-      TXT( "\nFile     : ");
-      ENM( src->SrcRegister.File, TGSI_FILES );
-      if( deflt || fs->SrcRegister.SwizzleX != src->SrcRegister.SwizzleX ) {
-         TXT( "\nSwizzleX : " );
-         ENM( src->SrcRegister.SwizzleX, TGSI_SWIZZLES );
-      }
-      if( deflt || fs->SrcRegister.SwizzleY != src->SrcRegister.SwizzleY ) {
-         TXT( "\nSwizzleY : " );
-         ENM( src->SrcRegister.SwizzleY, TGSI_SWIZZLES );
-      }
-      if( deflt || fs->SrcRegister.SwizzleZ != src->SrcRegister.SwizzleZ ) {
-         TXT( "\nSwizzleZ : " );
-         ENM( src->SrcRegister.SwizzleZ, TGSI_SWIZZLES );
-      }
-      if( deflt || fs->SrcRegister.SwizzleW != src->SrcRegister.SwizzleW ) {
-         TXT( "\nSwizzleW : " );
-         ENM( src->SrcRegister.SwizzleW, TGSI_SWIZZLES );
-      }
-      if( deflt || fs->SrcRegister.Negate != src->SrcRegister.Negate ) {
-         TXT( "\nNegate   : " );
-         UID( src->SrcRegister.Negate );
-      }
-      if( ignored ) {
-         if( deflt || fs->SrcRegister.Indirect != src->SrcRegister.Indirect ) {
-            TXT( "\nIndirect : " );
-            UID( src->SrcRegister.Indirect );
-         }
-         if( deflt || fs->SrcRegister.Dimension != src->SrcRegister.Dimension ) {
-            TXT( "\nDimension: " );
-            UID( src->SrcRegister.Dimension );
-         }
-      }
-      if( deflt || fs->SrcRegister.Index != src->SrcRegister.Index ) {
-         TXT( "\nIndex    : " );
-         SID( src->SrcRegister.Index );
-      }
-      if( ignored ) {
-         if( deflt || fs->SrcRegister.Extended != src->SrcRegister.Extended ) {
-            TXT( "\nExtended : " );
-            UID( src->SrcRegister.Extended );
-         }
-      }
-
-      if( deflt || tgsi_compare_src_register_ext_swz( src->SrcRegisterExtSwz, fs->SrcRegisterExtSwz ) ) {
-         EOL();
-         TXT( "\nType       : " );
-         ENM( src->SrcRegisterExtSwz.Type, TGSI_SRC_REGISTER_EXTS );
-         if( deflt || fs->SrcRegisterExtSwz.ExtSwizzleX != src->SrcRegisterExtSwz.ExtSwizzleX ) {
-            TXT( "\nExtSwizzleX: " );
-            ENM( src->SrcRegisterExtSwz.ExtSwizzleX, TGSI_EXTSWIZZLES );
-         }
-         if( deflt || fs->SrcRegisterExtSwz.ExtSwizzleY != src->SrcRegisterExtSwz.ExtSwizzleY ) {
-            TXT( "\nExtSwizzleY: " );
-            ENM( src->SrcRegisterExtSwz.ExtSwizzleY, TGSI_EXTSWIZZLES );
-         }
-         if( deflt || fs->SrcRegisterExtSwz.ExtSwizzleZ != src->SrcRegisterExtSwz.ExtSwizzleZ ) {
-            TXT( "\nExtSwizzleZ: " );
-            ENM( src->SrcRegisterExtSwz.ExtSwizzleZ, TGSI_EXTSWIZZLES );
-         }
-         if( deflt || fs->SrcRegisterExtSwz.ExtSwizzleW != src->SrcRegisterExtSwz.ExtSwizzleW ) {
-            TXT( "\nExtSwizzleW: " );
-            ENM( src->SrcRegisterExtSwz.ExtSwizzleW, TGSI_EXTSWIZZLES );
-         }
-         if( deflt || fs->SrcRegisterExtSwz.NegateX != src->SrcRegisterExtSwz.NegateX ) {
-            TXT( "\nNegateX   : " );
-            UID( src->SrcRegisterExtSwz.NegateX );
-         }
-         if( deflt || fs->SrcRegisterExtSwz.NegateY != src->SrcRegisterExtSwz.NegateY ) {
-            TXT( "\nNegateY   : " );
-            UID( src->SrcRegisterExtSwz.NegateY );
-         }
-         if( deflt || fs->SrcRegisterExtSwz.NegateZ != src->SrcRegisterExtSwz.NegateZ ) {
-            TXT( "\nNegateZ   : " );
-            UID( src->SrcRegisterExtSwz.NegateZ );
-         }
-         if( deflt || fs->SrcRegisterExtSwz.NegateW != src->SrcRegisterExtSwz.NegateW ) {
-            TXT( "\nNegateW   : " );
-            UID( src->SrcRegisterExtSwz.NegateW );
-         }
-         if( ignored ) {
-            TXT( "\nPadding   : " );
-            UIX( src->SrcRegisterExtSwz.Padding );
-            if( deflt || fs->SrcRegisterExtSwz.Extended != src->SrcRegisterExtSwz.Extended ) {
-               TXT( "\nExtended   : " );
-               UID( src->SrcRegisterExtSwz.Extended );
-            }
-         }
-      }
+   tgsi_dump_instruction( inst, ctx->instno++ );
+   return TRUE;
+}
 
-      if( deflt || tgsi_compare_src_register_ext_mod( src->SrcRegisterExtMod, fs->SrcRegisterExtMod ) ) {
-         EOL();
-         TXT( "\nType     : " );
-         ENM( src->SrcRegisterExtMod.Type, TGSI_SRC_REGISTER_EXTS );
-         if( deflt || fs->SrcRegisterExtMod.Complement != src->SrcRegisterExtMod.Complement ) {
-            TXT( "\nComplement: " );
-            UID( src->SrcRegisterExtMod.Complement );
-         }
-         if( deflt || fs->SrcRegisterExtMod.Bias != src->SrcRegisterExtMod.Bias ) {
-            TXT( "\nBias     : " );
-            UID( src->SrcRegisterExtMod.Bias );
-         }
-         if( deflt || fs->SrcRegisterExtMod.Scale2X != src->SrcRegisterExtMod.Scale2X ) {
-            TXT( "\nScale2X   : " );
-            UID( src->SrcRegisterExtMod.Scale2X );
-         }
-         if( deflt || fs->SrcRegisterExtMod.Absolute != src->SrcRegisterExtMod.Absolute ) {
-            TXT( "\nAbsolute  : " );
-            UID( src->SrcRegisterExtMod.Absolute );
-         }
-         if( deflt || fs->SrcRegisterExtMod.Negate != src->SrcRegisterExtMod.Negate ) {
-            TXT( "\nNegate   : " );
-            UID( src->SrcRegisterExtMod.Negate );
-         }
-         if( ignored ) {
-            TXT( "\nPadding   : " );
-            UIX( src->SrcRegisterExtMod.Padding );
-            if( deflt || fs->SrcRegisterExtMod.Extended != src->SrcRegisterExtMod.Extended ) {
-               TXT( "\nExtended  : " );
-               UID( src->SrcRegisterExtMod.Extended );
-            }
-         }
-      }
-   }
+static boolean
+prolog(
+   struct tgsi_iterate_context *ctx )
+{
+   EOL();
+   ENM( ctx->processor.Processor, processor_type_names );
+   UID( ctx->version.MajorVersion );
+   CHR( '.' );
+   UID( ctx->version.MinorVersion );
+   return TRUE;
 }
 
 void
 tgsi_dump(
    const struct tgsi_token *tokens,
-   unsigned                flags )
+   uint flags )
 {
-   struct tgsi_parse_context parse;
-   struct tgsi_full_instruction fi;
-   struct tgsi_full_declaration fd;
-   unsigned verbose = flags & TGSI_DUMP_VERBOSE;
-   unsigned ignored = !(flags & TGSI_DUMP_NO_IGNORED);
-   unsigned deflt = !(flags & TGSI_DUMP_NO_DEFAULT);
-   unsigned instno = 0;
+   struct dump_ctx ctx;
 
    /* sanity checks */
-   assert(strcmp(TGSI_OPCODES[TGSI_OPCODE_CONT], "OPCODE_CONT") == 0);
-   assert(strcmp(TGSI_OPCODES[TGSI_OPCODE_END], "OPCODE_END") == 0);
-   assert(strcmp(TGSI_OPCODES_SHORT[TGSI_OPCODE_END], "END") == 0);
-
-   tgsi_parse_init( &parse, tokens );
+   assert( strcmp( opcode_names[TGSI_OPCODE_CONT], "CONT" ) == 0 );
+   assert( strcmp( opcode_names[TGSI_OPCODE_END], "END" ) == 0 );
 
-   TXT( "tgsi-dump begin -----------------" );
-
-   EOL();
-   ENM( parse.FullHeader.Processor.Processor, TGSI_PROCESSOR_TYPES_SHORT );
-   UID( parse.FullVersion.Version.MajorVersion );
-   CHR( '.' );
-   UID( parse.FullVersion.Version.MinorVersion );
-
-   if( verbose ) {
-      TXT( "\nMajorVersion: " );
-      UID( parse.FullVersion.Version.MajorVersion );
-      TXT( "\nMinorVersion: " );
-      UID( parse.FullVersion.Version.MinorVersion );
-      EOL();
-
-      TXT( "\nHeaderSize: " );
-      UID( parse.FullHeader.Header.HeaderSize );
-      TXT( "\nBodySize  : " );
-      UID( parse.FullHeader.Header.BodySize );
-      TXT( "\nProcessor : " );
-      ENM( parse.FullHeader.Processor.Processor, TGSI_PROCESSOR_TYPES );
-      EOL();
-   }
-
-   fi = tgsi_default_full_instruction();
-   fd = tgsi_default_full_declaration();
-
-   while( !tgsi_parse_end_of_tokens( &parse ) ) {
-      tgsi_parse_token( &parse );
-
-      switch( parse.FullToken.Token.Type ) {
-      case TGSI_TOKEN_TYPE_DECLARATION:
-         tgsi_dump_declaration(
-            &parse.FullToken.FullDeclaration );
-         break;
-
-      case TGSI_TOKEN_TYPE_IMMEDIATE:
-         tgsi_dump_immediate(
-            &parse.FullToken.FullImmediate );
-         break;
-
-      case TGSI_TOKEN_TYPE_INSTRUCTION:
-         tgsi_dump_instruction(
-            &parse.FullToken.FullInstruction,
-            instno );
-         instno++;
-         break;
-
-      default:
-         assert( 0 );
-      }
-
-      if( verbose ) {
-         TXT( "\nType       : " );
-         ENM( parse.FullToken.Token.Type, TGSI_TOKEN_TYPES );
-         if( ignored ) {
-            TXT( "\nSize       : " );
-            UID( parse.FullToken.Token.Size );
-            if( deflt || parse.FullToken.Token.Extended ) {
-               TXT( "\nExtended   : " );
-               UID( parse.FullToken.Token.Extended );
-            }
-         }
-
-         switch( parse.FullToken.Token.Type ) {
-         case TGSI_TOKEN_TYPE_DECLARATION:
-            dump_declaration_verbose(
-               &parse.FullToken.FullDeclaration,
-               ignored,
-               deflt,
-               &fd );
-            break;
-
-         case TGSI_TOKEN_TYPE_IMMEDIATE:
-            dump_immediate_verbose(
-               &parse.FullToken.FullImmediate,
-               ignored );
-            break;
-
-         case TGSI_TOKEN_TYPE_INSTRUCTION:
-            dump_instruction_verbose(
-               &parse.FullToken.FullInstruction,
-               ignored,
-               deflt,
-               &fi );
-            break;
-
-         default:
-            assert( 0 );
-         }
-
-         EOL();
-      }
-   }
+   ctx.iter.prolog = prolog;
+   ctx.iter.iterate_instruction = iter_instruction;
+   ctx.iter.iterate_declaration = iter_declaration;
+   ctx.iter.iterate_immediate = iter_immediate;
+   ctx.iter.epilog = NULL;
 
-   TXT( "\ntgsi-dump end -------------------\n" );
+   ctx.instno = 0;
 
-   tgsi_parse_free( &parse );
+   tgsi_iterate_shader( tokens, &ctx.iter );
 }
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_dump.h b/src/gallium/auxiliary/tgsi/util/tgsi_dump.h
index ba7692b511..51c230b5db 100644
--- a/src/gallium/auxiliary/tgsi/util/tgsi_dump.h
+++ b/src/gallium/auxiliary/tgsi/util/tgsi_dump.h
@@ -1,6 +1,6 @@
 /**************************************************************************
  * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -28,18 +28,16 @@
 #ifndef TGSI_DUMP_H
 #define TGSI_DUMP_H
 
+#include "pipe/p_shader_tokens.h"
+
 #if defined __cplusplus
 extern "C" {
 #endif
 
-#define TGSI_DUMP_VERBOSE       1
-#define TGSI_DUMP_NO_IGNORED    2
-#define TGSI_DUMP_NO_DEFAULT    4
-
 void
 tgsi_dump(
    const struct tgsi_token *tokens,
-   unsigned                flags );
+   uint flags );
 
 struct tgsi_full_immediate;
 struct tgsi_full_instruction;
@@ -51,12 +49,12 @@ tgsi_dump_immediate(
 
 void
 tgsi_dump_instruction(
-   const struct tgsi_full_instruction  *inst,
-   unsigned                      instno );
+   const struct tgsi_full_instruction *inst,
+   uint instno );
 
 void
 tgsi_dump_declaration(
-   const struct tgsi_full_declaration  *decl );
+   const struct tgsi_full_declaration *decl );
 
 #if defined __cplusplus
 }
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_dump_c.c b/src/gallium/auxiliary/tgsi/util/tgsi_dump_c.c
new file mode 100644
index 0000000000..eabd74bd6d
--- /dev/null
+++ b/src/gallium/auxiliary/tgsi/util/tgsi_dump_c.c
@@ -0,0 +1,845 @@
+/**************************************************************************
+ * 
+ * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include "pipe/p_debug.h"
+#include "pipe/p_util.h"
+#include "util/u_string.h"
+#include "tgsi_dump_c.h"
+#include "tgsi_parse.h"
+#include "tgsi_build.h"
+
+static void
+dump_enum(
+   const unsigned    e,
+   const char        **enums,
+   const unsigned    enums_count )
+{
+   if (e >= enums_count) {
+      debug_printf( "%u", e );
+   }
+   else {
+      debug_printf( "%s", enums[e] );
+   }
+}
+
+#define EOL()           debug_printf( "\n" )
+#define TXT(S)          debug_printf( "%s", S )
+#define CHR(C)          debug_printf( "%c", C )
+#define UIX(I)          debug_printf( "0x%x", I )
+#define UID(I)          debug_printf( "%u", I )
+#define SID(I)          debug_printf( "%d", I )
+#define FLT(F)          debug_printf( "%10.4f", F )
+#define ENM(E,ENUMS)    dump_enum( E, ENUMS, sizeof( ENUMS ) / sizeof( *ENUMS ) )
+
+static const char *TGSI_PROCESSOR_TYPES[] =
+{
+   "PROCESSOR_FRAGMENT",
+   "PROCESSOR_VERTEX",
+   "PROCESSOR_GEOMETRY"
+};
+
+static const char *TGSI_TOKEN_TYPES[] =
+{
+   "TOKEN_TYPE_DECLARATION",
+   "TOKEN_TYPE_IMMEDIATE",
+   "TOKEN_TYPE_INSTRUCTION"
+};
+
+static const char *TGSI_FILES[] =
+{
+   "FILE_NULL",
+   "FILE_CONSTANT",
+   "FILE_INPUT",
+   "FILE_OUTPUT",
+   "FILE_TEMPORARY",
+   "FILE_SAMPLER",
+   "FILE_ADDRESS",
+   "FILE_IMMEDIATE"
+};
+
+static const char *TGSI_INTERPOLATES[] =
+{
+   "INTERPOLATE_CONSTANT",
+   "INTERPOLATE_LINEAR",
+   "INTERPOLATE_PERSPECTIVE"
+};
+
+static const char *TGSI_SEMANTICS[] =
+{
+   "SEMANTIC_POSITION",
+   "SEMANTIC_COLOR",
+   "SEMANTIC_BCOLOR",
+   "SEMANTIC_FOG",
+   "SEMANTIC_PSIZE",
+   "SEMANTIC_GENERIC",
+   "SEMANTIC_NORMAL"
+};
+
+static const char *TGSI_IMMS[] =
+{
+   "IMM_FLOAT32"
+};
+
+static const char *TGSI_OPCODES[TGSI_OPCODE_LAST] =
+{
+   "OPCODE_ARL",
+   "OPCODE_MOV",
+   "OPCODE_LIT",
+   "OPCODE_RCP",
+   "OPCODE_RSQ",
+   "OPCODE_EXP",
+   "OPCODE_LOG",
+   "OPCODE_MUL",
+   "OPCODE_ADD",
+   "OPCODE_DP3",
+   "OPCODE_DP4",
+   "OPCODE_DST",
+   "OPCODE_MIN",
+   "OPCODE_MAX",
+   "OPCODE_SLT",
+   "OPCODE_SGE",
+   "OPCODE_MAD",
+   "OPCODE_SUB",
+   "OPCODE_LERP",
+   "OPCODE_CND",
+   "OPCODE_CND0",
+   "OPCODE_DOT2ADD",
+   "OPCODE_INDEX",
+   "OPCODE_NEGATE",
+   "OPCODE_FRAC",
+   "OPCODE_CLAMP",
+   "OPCODE_FLOOR",
+   "OPCODE_ROUND",
+   "OPCODE_EXPBASE2",
+   "OPCODE_LOGBASE2",
+   "OPCODE_POWER",
+   "OPCODE_CROSSPRODUCT",
+   "OPCODE_MULTIPLYMATRIX",
+   "OPCODE_ABS",
+   "OPCODE_RCC",
+   "OPCODE_DPH",
+   "OPCODE_COS",
+   "OPCODE_DDX",
+   "OPCODE_DDY",
+   "OPCODE_KILP",
+   "OPCODE_PK2H",
+   "OPCODE_PK2US",
+   "OPCODE_PK4B",
+   "OPCODE_PK4UB",
+   "OPCODE_RFL",
+   "OPCODE_SEQ",
+   "OPCODE_SFL",
+   "OPCODE_SGT",
+   "OPCODE_SIN",
+   "OPCODE_SLE",
+   "OPCODE_SNE",
+   "OPCODE_STR",
+   "OPCODE_TEX",
+   "OPCODE_TXD",
+   "OPCODE_TXP",
+   "OPCODE_UP2H",
+   "OPCODE_UP2US",
+   "OPCODE_UP4B",
+   "OPCODE_UP4UB",
+   "OPCODE_X2D",
+   "OPCODE_ARA",
+   "OPCODE_ARR",
+   "OPCODE_BRA",
+   "OPCODE_CAL",
+   "OPCODE_RET",
+   "OPCODE_SSG",
+   "OPCODE_CMP",
+   "OPCODE_SCS",
+   "OPCODE_TXB",
+   "OPCODE_NRM",
+   "OPCODE_DIV",
+   "OPCODE_DP2",
+   "OPCODE_TXL",
+   "OPCODE_BRK",
+   "OPCODE_IF",
+   "OPCODE_LOOP",
+   "OPCODE_REP",
+   "OPCODE_ELSE",
+   "OPCODE_ENDIF",
+   "OPCODE_ENDLOOP",
+   "OPCODE_ENDREP",
+   "OPCODE_PUSHA",
+   "OPCODE_POPA",
+   "OPCODE_CEIL",
+   "OPCODE_I2F",
+   "OPCODE_NOT",
+   "OPCODE_TRUNC",
+   "OPCODE_SHL",
+   "OPCODE_SHR",
+   "OPCODE_AND",
+   "OPCODE_OR",
+   "OPCODE_MOD",
+   "OPCODE_XOR",
+   "OPCODE_SAD",
+   "OPCODE_TXF",
+   "OPCODE_TXQ",
+   "OPCODE_CONT",
+   "OPCODE_EMIT",
+   "OPCODE_ENDPRIM",
+   "OPCODE_BGNLOOP2",
+   "OPCODE_BGNSUB",
+   "OPCODE_ENDLOOP2",
+   "OPCODE_ENDSUB",
+   "OPCODE_NOISE1",
+   "OPCODE_NOISE2",
+   "OPCODE_NOISE3",
+   "OPCODE_NOISE4",
+   "OPCODE_NOP",
+   "OPCODE_M4X3",
+   "OPCODE_M3X4",
+   "OPCODE_M3X3",
+   "OPCODE_M3X2",
+   "OPCODE_NRM4",
+   "OPCODE_CALLNZ",
+   "OPCODE_IFC",
+   "OPCODE_BREAKC",
+   "OPCODE_KIL",
+   "OPCODE_END"
+};
+
+static const char *TGSI_SATS[] =
+{
+   "SAT_NONE",
+   "SAT_ZERO_ONE",
+   "SAT_MINUS_PLUS_ONE"
+};
+
+static const char *TGSI_INSTRUCTION_EXTS[] =
+{
+   "INSTRUCTION_EXT_TYPE_NV",
+   "INSTRUCTION_EXT_TYPE_LABEL",
+   "INSTRUCTION_EXT_TYPE_TEXTURE"
+};
+
+static const char *TGSI_PRECISIONS[] =
+{
+   "PRECISION_DEFAULT",
+   "PRECISION_FLOAT32",
+   "PRECISION_FLOAT16",
+   "PRECISION_FIXED12"
+};
+
+static const char *TGSI_CCS[] =
+{
+   "CC_GT",
+   "CC_EQ",
+   "CC_LT",
+   "CC_UN",
+   "CC_GE",
+   "CC_LE",
+   "CC_NE",
+   "CC_TR",
+   "CC_FL"
+};
+
+static const char *TGSI_SWIZZLES[] =
+{
+   "SWIZZLE_X",
+   "SWIZZLE_Y",
+   "SWIZZLE_Z",
+   "SWIZZLE_W"
+};
+
+static const char *TGSI_TEXTURES[] =
+{
+   "TEXTURE_UNKNOWN",
+   "TEXTURE_1D",
+   "TEXTURE_2D",
+   "TEXTURE_3D",
+   "TEXTURE_CUBE",
+   "TEXTURE_RECT",
+   "TEXTURE_SHADOW1D",
+   "TEXTURE_SHADOW2D",
+   "TEXTURE_SHADOWRECT"
+};
+
+static const char *TGSI_SRC_REGISTER_EXTS[] =
+{
+   "SRC_REGISTER_EXT_TYPE_SWZ",
+   "SRC_REGISTER_EXT_TYPE_MOD"
+};
+
+static const char *TGSI_EXTSWIZZLES[] =
+{
+   "EXTSWIZZLE_X",
+   "EXTSWIZZLE_Y",
+   "EXTSWIZZLE_Z",
+   "EXTSWIZZLE_W",
+   "EXTSWIZZLE_ZERO",
+   "EXTSWIZZLE_ONE"
+};
+
+static const char *TGSI_WRITEMASKS[] =
+{
+   "0",
+   "WRITEMASK_X",
+   "WRITEMASK_Y",
+   "WRITEMASK_XY",
+   "WRITEMASK_Z",
+   "WRITEMASK_XZ",
+   "WRITEMASK_YZ",
+   "WRITEMASK_XYZ",
+   "WRITEMASK_W",
+   "WRITEMASK_XW",
+   "WRITEMASK_YW",
+   "WRITEMASK_XYW",
+   "WRITEMASK_ZW",
+   "WRITEMASK_XZW",
+   "WRITEMASK_YZW",
+   "WRITEMASK_XYZW"
+};
+
+static const char *TGSI_DST_REGISTER_EXTS[] =
+{
+   "DST_REGISTER_EXT_TYPE_CONDCODE",
+   "DST_REGISTER_EXT_TYPE_MODULATE"
+};
+
+static const char *TGSI_MODULATES[] =
+{
+   "MODULATE_1X",
+   "MODULATE_2X",
+   "MODULATE_4X",
+   "MODULATE_8X",
+   "MODULATE_HALF",
+   "MODULATE_QUARTER",
+   "MODULATE_EIGHTH"
+};
+
+static void
+dump_declaration_verbose(
+   struct tgsi_full_declaration  *decl,
+   unsigned                      ignored,
+   unsigned                      deflt,
+   struct tgsi_full_declaration  *fd )
+{
+   TXT( "\nFile       : " );
+   ENM( decl->Declaration.File, TGSI_FILES );
+   if( deflt || fd->Declaration.UsageMask != decl->Declaration.UsageMask ) {
+      TXT( "\nUsageMask  : " );
+      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_X ) {
+         CHR( 'X' );
+      }
+      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_Y ) {
+         CHR( 'Y' );
+      }
+      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_Z ) {
+         CHR( 'Z' );
+      }
+      if( decl->Declaration.UsageMask & TGSI_WRITEMASK_W ) {
+         CHR( 'W' );
+      }
+   }
+   if( deflt || fd->Declaration.Interpolate != decl->Declaration.Interpolate ) {
+      TXT( "\nInterpolate: " );
+      ENM( decl->Declaration.Interpolate, TGSI_INTERPOLATES );
+   }
+   if( deflt || fd->Declaration.Semantic != decl->Declaration.Semantic ) {
+      TXT( "\nSemantic   : " );
+      UID( decl->Declaration.Semantic );
+   }
+   if( ignored ) {
+      TXT( "\nPadding    : " );
+      UIX( decl->Declaration.Padding );
+   }
+
+   EOL();
+   TXT( "\nFirst: " );
+   UID( decl->DeclarationRange.First );
+   TXT( "\nLast : " );
+   UID( decl->DeclarationRange.Last );
+
+   if( decl->Declaration.Semantic ) {
+      EOL();
+      TXT( "\nSemanticName : " );
+      ENM( decl->Semantic.SemanticName, TGSI_SEMANTICS );
+      TXT( "\nSemanticIndex: " );
+      UID( decl->Semantic.SemanticIndex );
+      if( ignored ) {
+         TXT( "\nPadding      : " );
+         UIX( decl->Semantic.Padding );
+      }
+   }
+}
+
+static void
+dump_immediate_verbose(
+   struct tgsi_full_immediate *imm,
+   unsigned                   ignored )
+{
+   unsigned i;
+
+   TXT( "\nDataType   : " );
+   ENM( imm->Immediate.DataType, TGSI_IMMS );
+   if( ignored ) {
+      TXT( "\nPadding    : " );
+      UIX( imm->Immediate.Padding );
+   }
+
+   for( i = 0; i < imm->Immediate.Size - 1; i++ ) {
+      EOL();
+      switch( imm->Immediate.DataType ) {
+      case TGSI_IMM_FLOAT32:
+         TXT( "\nFloat: " );
+         FLT( imm->u.ImmediateFloat32[i].Float );
+         break;
+
+      default:
+         assert( 0 );
+      }
+   }
+}
+
+static void
+dump_instruction_verbose(
+   struct tgsi_full_instruction  *inst,
+   unsigned                      ignored,
+   unsigned                      deflt,
+   struct tgsi_full_instruction  *fi )
+{
+   unsigned i;
+
+   TXT( "\nOpcode     : " );
+   ENM( inst->Instruction.Opcode, TGSI_OPCODES );
+   if( deflt || fi->Instruction.Saturate != inst->Instruction.Saturate ) {
+      TXT( "\nSaturate   : " );
+      ENM( inst->Instruction.Saturate, TGSI_SATS );
+   }
+   if( deflt || fi->Instruction.NumDstRegs != inst->Instruction.NumDstRegs ) {
+      TXT( "\nNumDstRegs : " );
+      UID( inst->Instruction.NumDstRegs );
+   }
+   if( deflt || fi->Instruction.NumSrcRegs != inst->Instruction.NumSrcRegs ) {
+      TXT( "\nNumSrcRegs : " );
+      UID( inst->Instruction.NumSrcRegs );
+   }
+   if( ignored ) {
+      TXT( "\nPadding    : " );
+      UIX( inst->Instruction.Padding );
+   }
+
+   if( deflt || tgsi_compare_instruction_ext_nv( inst->InstructionExtNv, fi->InstructionExtNv ) ) {
+      EOL();
+      TXT( "\nType          : " );
+      ENM( inst->InstructionExtNv.Type, TGSI_INSTRUCTION_EXTS );
+      if( deflt || fi->InstructionExtNv.Precision != inst->InstructionExtNv.Precision ) {
+         TXT( "\nPrecision     : " );
+         ENM( inst->InstructionExtNv.Precision, TGSI_PRECISIONS );
+      }
+      if( deflt || fi->InstructionExtNv.CondDstIndex != inst->InstructionExtNv.CondDstIndex ) {
+         TXT( "\nCondDstIndex  : " );
+         UID( inst->InstructionExtNv.CondDstIndex );
+      }
+      if( deflt || fi->InstructionExtNv.CondFlowIndex != inst->InstructionExtNv.CondFlowIndex ) {
+         TXT( "\nCondFlowIndex : " );
+         UID( inst->InstructionExtNv.CondFlowIndex );
+      }
+      if( deflt || fi->InstructionExtNv.CondMask != inst->InstructionExtNv.CondMask ) {
+         TXT( "\nCondMask      : " );
+         ENM( inst->InstructionExtNv.CondMask, TGSI_CCS );
+      }
+      if( deflt || fi->InstructionExtNv.CondSwizzleX != inst->InstructionExtNv.CondSwizzleX ) {
+         TXT( "\nCondSwizzleX  : " );
+         ENM( inst->InstructionExtNv.CondSwizzleX, TGSI_SWIZZLES );
+      }
+      if( deflt || fi->InstructionExtNv.CondSwizzleY != inst->InstructionExtNv.CondSwizzleY ) {
+         TXT( "\nCondSwizzleY  : " );
+         ENM( inst->InstructionExtNv.CondSwizzleY, TGSI_SWIZZLES );
+      }
+      if( deflt || fi->InstructionExtNv.CondSwizzleZ != inst->InstructionExtNv.CondSwizzleZ ) {
+         TXT( "\nCondSwizzleZ  : " );
+         ENM( inst->InstructionExtNv.CondSwizzleZ, TGSI_SWIZZLES );
+      }
+      if( deflt || fi->InstructionExtNv.CondSwizzleW != inst->InstructionExtNv.CondSwizzleW ) {
+         TXT( "\nCondSwizzleW  : " );
+         ENM( inst->InstructionExtNv.CondSwizzleW, TGSI_SWIZZLES );
+      }
+      if( deflt || fi->InstructionExtNv.CondDstUpdate != inst->InstructionExtNv.CondDstUpdate ) {
+         TXT( "\nCondDstUpdate : " );
+         UID( inst->InstructionExtNv.CondDstUpdate );
+      }
+      if( deflt || fi->InstructionExtNv.CondFlowEnable != inst->InstructionExtNv.CondFlowEnable ) {
+         TXT( "\nCondFlowEnable: " );
+         UID( inst->InstructionExtNv.CondFlowEnable );
+      }
+      if( ignored ) {
+         TXT( "\nPadding       : " );
+         UIX( inst->InstructionExtNv.Padding );
+         if( deflt || fi->InstructionExtNv.Extended != inst->InstructionExtNv.Extended ) {
+            TXT( "\nExtended      : " );
+            UID( inst->InstructionExtNv.Extended );
+         }
+      }
+   }
+
+   if( deflt || tgsi_compare_instruction_ext_label( inst->InstructionExtLabel, fi->InstructionExtLabel ) ) {
+      EOL();
+      TXT( "\nType    : " );
+      ENM( inst->InstructionExtLabel.Type, TGSI_INSTRUCTION_EXTS );
+      if( deflt || fi->InstructionExtLabel.Label != inst->InstructionExtLabel.Label ) {
+         TXT( "\nLabel   : " );
+         UID( inst->InstructionExtLabel.Label );
+      }
+      if( ignored ) {
+         TXT( "\nPadding : " );
+         UIX( inst->InstructionExtLabel.Padding );
+         if( deflt || fi->InstructionExtLabel.Extended != inst->InstructionExtLabel.Extended ) {
+            TXT( "\nExtended: " );
+            UID( inst->InstructionExtLabel.Extended );
+         }
+      }
+   }
+
+   if( deflt || tgsi_compare_instruction_ext_texture( inst->InstructionExtTexture, fi->InstructionExtTexture ) ) {
+      EOL();
+      TXT( "\nType    : " );
+      ENM( inst->InstructionExtTexture.Type, TGSI_INSTRUCTION_EXTS );
+      if( deflt || fi->InstructionExtTexture.Texture != inst->InstructionExtTexture.Texture ) {
+         TXT( "\nTexture : " );
+         ENM( inst->InstructionExtTexture.Texture, TGSI_TEXTURES );
+      }
+      if( ignored ) {
+         TXT( "\nPadding : " );
+         UIX( inst->InstructionExtTexture.Padding );
+         if( deflt || fi->InstructionExtTexture.Extended != inst->InstructionExtTexture.Extended ) {
+            TXT( "\nExtended: " );
+            UID( inst->InstructionExtTexture.Extended );
+         }
+      }
+   }
+
+   for( i = 0; i < inst->Instruction.NumDstRegs; i++ ) {
+      struct tgsi_full_dst_register *dst = &inst->FullDstRegisters[i];
+      struct tgsi_full_dst_register *fd = &fi->FullDstRegisters[i];
+
+      EOL();
+      TXT( "\nFile     : " );
+      ENM( dst->DstRegister.File, TGSI_FILES );
+      if( deflt || fd->DstRegister.WriteMask != dst->DstRegister.WriteMask ) {
+         TXT( "\nWriteMask: " );
+         ENM( dst->DstRegister.WriteMask, TGSI_WRITEMASKS );
+      }
+      if( ignored ) {
+         if( deflt || fd->DstRegister.Indirect != dst->DstRegister.Indirect ) {
+            TXT( "\nIndirect : " );
+            UID( dst->DstRegister.Indirect );
+         }
+         if( deflt || fd->DstRegister.Dimension != dst->DstRegister.Dimension ) {
+            TXT( "\nDimension: " );
+            UID( dst->DstRegister.Dimension );
+         }
+      }
+      if( deflt || fd->DstRegister.Index != dst->DstRegister.Index ) {
+         TXT( "\nIndex    : " );
+         SID( dst->DstRegister.Index );
+      }
+      if( ignored ) {
+         TXT( "\nPadding  : " );
+         UIX( dst->DstRegister.Padding );
+         if( deflt || fd->DstRegister.Extended != dst->DstRegister.Extended ) {
+            TXT( "\nExtended : " );
+            UID( dst->DstRegister.Extended );
+         }
+      }
+
+      if( deflt || tgsi_compare_dst_register_ext_concode( dst->DstRegisterExtConcode, fd->DstRegisterExtConcode ) ) {
+         EOL();
+         TXT( "\nType        : " );
+         ENM( dst->DstRegisterExtConcode.Type, TGSI_DST_REGISTER_EXTS );
+         if( deflt || fd->DstRegisterExtConcode.CondMask != dst->DstRegisterExtConcode.CondMask ) {
+            TXT( "\nCondMask    : " );
+            ENM( dst->DstRegisterExtConcode.CondMask, TGSI_CCS );
+         }
+         if( deflt || fd->DstRegisterExtConcode.CondSwizzleX != dst->DstRegisterExtConcode.CondSwizzleX ) {
+            TXT( "\nCondSwizzleX: " );
+            ENM( dst->DstRegisterExtConcode.CondSwizzleX, TGSI_SWIZZLES );
+         }
+         if( deflt || fd->DstRegisterExtConcode.CondSwizzleY != dst->DstRegisterExtConcode.CondSwizzleY ) {
+            TXT( "\nCondSwizzleY: " );
+            ENM( dst->DstRegisterExtConcode.CondSwizzleY, TGSI_SWIZZLES );
+         }
+         if( deflt || fd->DstRegisterExtConcode.CondSwizzleZ != dst->DstRegisterExtConcode.CondSwizzleZ ) {
+            TXT( "\nCondSwizzleZ: " );
+            ENM( dst->DstRegisterExtConcode.CondSwizzleZ, TGSI_SWIZZLES );
+         }
+         if( deflt || fd->DstRegisterExtConcode.CondSwizzleW != dst->DstRegisterExtConcode.CondSwizzleW ) {
+            TXT( "\nCondSwizzleW: " );
+            ENM( dst->DstRegisterExtConcode.CondSwizzleW, TGSI_SWIZZLES );
+         }
+         if( deflt || fd->DstRegisterExtConcode.CondSrcIndex != dst->DstRegisterExtConcode.CondSrcIndex ) {
+            TXT( "\nCondSrcIndex: " );
+            UID( dst->DstRegisterExtConcode.CondSrcIndex );
+         }
+         if( ignored ) {
+            TXT( "\nPadding     : " );
+            UIX( dst->DstRegisterExtConcode.Padding );
+            if( deflt || fd->DstRegisterExtConcode.Extended != dst->DstRegisterExtConcode.Extended ) {
+               TXT( "\nExtended    : " );
+               UID( dst->DstRegisterExtConcode.Extended );
+            }
+         }
+      }
+
+      if( deflt || tgsi_compare_dst_register_ext_modulate( dst->DstRegisterExtModulate, fd->DstRegisterExtModulate ) ) {
+         EOL();
+         TXT( "\nType    : " );
+         ENM( dst->DstRegisterExtModulate.Type, TGSI_DST_REGISTER_EXTS );
+         if( deflt || fd->DstRegisterExtModulate.Modulate != dst->DstRegisterExtModulate.Modulate ) {
+            TXT( "\nModulate: " );
+            ENM( dst->DstRegisterExtModulate.Modulate, TGSI_MODULATES );
+         }
+         if( ignored ) {
+            TXT( "\nPadding : " );
+            UIX( dst->DstRegisterExtModulate.Padding );
+            if( deflt || fd->DstRegisterExtModulate.Extended != dst->DstRegisterExtModulate.Extended ) {
+               TXT( "\nExtended: " );
+               UID( dst->DstRegisterExtModulate.Extended );
+            }
+         }
+      }
+   }
+
+   for( i = 0; i < inst->Instruction.NumSrcRegs; i++ ) {
+      struct tgsi_full_src_register *src = &inst->FullSrcRegisters[i];
+      struct tgsi_full_src_register *fs = &fi->FullSrcRegisters[i];
+
+      EOL();
+      TXT( "\nFile     : ");
+      ENM( src->SrcRegister.File, TGSI_FILES );
+      if( deflt || fs->SrcRegister.SwizzleX != src->SrcRegister.SwizzleX ) {
+         TXT( "\nSwizzleX : " );
+         ENM( src->SrcRegister.SwizzleX, TGSI_SWIZZLES );
+      }
+      if( deflt || fs->SrcRegister.SwizzleY != src->SrcRegister.SwizzleY ) {
+         TXT( "\nSwizzleY : " );
+         ENM( src->SrcRegister.SwizzleY, TGSI_SWIZZLES );
+      }
+      if( deflt || fs->SrcRegister.SwizzleZ != src->SrcRegister.SwizzleZ ) {
+         TXT( "\nSwizzleZ : " );
+         ENM( src->SrcRegister.SwizzleZ, TGSI_SWIZZLES );
+      }
+      if( deflt || fs->SrcRegister.SwizzleW != src->SrcRegister.SwizzleW ) {
+         TXT( "\nSwizzleW : " );
+         ENM( src->SrcRegister.SwizzleW, TGSI_SWIZZLES );
+      }
+      if( deflt || fs->SrcRegister.Negate != src->SrcRegister.Negate ) {
+         TXT( "\nNegate   : " );
+         UID( src->SrcRegister.Negate );
+      }
+      if( ignored ) {
+         if( deflt || fs->SrcRegister.Indirect != src->SrcRegister.Indirect ) {
+            TXT( "\nIndirect : " );
+            UID( src->SrcRegister.Indirect );
+         }
+         if( deflt || fs->SrcRegister.Dimension != src->SrcRegister.Dimension ) {
+            TXT( "\nDimension: " );
+            UID( src->SrcRegister.Dimension );
+         }
+      }
+      if( deflt || fs->SrcRegister.Index != src->SrcRegister.Index ) {
+         TXT( "\nIndex    : " );
+         SID( src->SrcRegister.Index );
+      }
+      if( ignored ) {
+         if( deflt || fs->SrcRegister.Extended != src->SrcRegister.Extended ) {
+            TXT( "\nExtended : " );
+            UID( src->SrcRegister.Extended );
+         }
+      }
+
+      if( deflt || tgsi_compare_src_register_ext_swz( src->SrcRegisterExtSwz, fs->SrcRegisterExtSwz ) ) {
+         EOL();
+         TXT( "\nType       : " );
+         ENM( src->SrcRegisterExtSwz.Type, TGSI_SRC_REGISTER_EXTS );
+         if( deflt || fs->SrcRegisterExtSwz.ExtSwizzleX != src->SrcRegisterExtSwz.ExtSwizzleX ) {
+            TXT( "\nExtSwizzleX: " );
+            ENM( src->SrcRegisterExtSwz.ExtSwizzleX, TGSI_EXTSWIZZLES );
+         }
+         if( deflt || fs->SrcRegisterExtSwz.ExtSwizzleY != src->SrcRegisterExtSwz.ExtSwizzleY ) {
+            TXT( "\nExtSwizzleY: " );
+            ENM( src->SrcRegisterExtSwz.ExtSwizzleY, TGSI_EXTSWIZZLES );
+         }
+         if( deflt || fs->SrcRegisterExtSwz.ExtSwizzleZ != src->SrcRegisterExtSwz.ExtSwizzleZ ) {
+            TXT( "\nExtSwizzleZ: " );
+            ENM( src->SrcRegisterExtSwz.ExtSwizzleZ, TGSI_EXTSWIZZLES );
+         }
+         if( deflt || fs->SrcRegisterExtSwz.ExtSwizzleW != src->SrcRegisterExtSwz.ExtSwizzleW ) {
+            TXT( "\nExtSwizzleW: " );
+            ENM( src->SrcRegisterExtSwz.ExtSwizzleW, TGSI_EXTSWIZZLES );
+         }
+         if( deflt || fs->SrcRegisterExtSwz.NegateX != src->SrcRegisterExtSwz.NegateX ) {
+            TXT( "\nNegateX   : " );
+            UID( src->SrcRegisterExtSwz.NegateX );
+         }
+         if( deflt || fs->SrcRegisterExtSwz.NegateY != src->SrcRegisterExtSwz.NegateY ) {
+            TXT( "\nNegateY   : " );
+            UID( src->SrcRegisterExtSwz.NegateY );
+         }
+         if( deflt || fs->SrcRegisterExtSwz.NegateZ != src->SrcRegisterExtSwz.NegateZ ) {
+            TXT( "\nNegateZ   : " );
+            UID( src->SrcRegisterExtSwz.NegateZ );
+         }
+         if( deflt || fs->SrcRegisterExtSwz.NegateW != src->SrcRegisterExtSwz.NegateW ) {
+            TXT( "\nNegateW   : " );
+            UID( src->SrcRegisterExtSwz.NegateW );
+         }
+         if( ignored ) {
+            TXT( "\nPadding   : " );
+            UIX( src->SrcRegisterExtSwz.Padding );
+            if( deflt || fs->SrcRegisterExtSwz.Extended != src->SrcRegisterExtSwz.Extended ) {
+               TXT( "\nExtended   : " );
+               UID( src->SrcRegisterExtSwz.Extended );
+            }
+         }
+      }
+
+      if( deflt || tgsi_compare_src_register_ext_mod( src->SrcRegisterExtMod, fs->SrcRegisterExtMod ) ) {
+         EOL();
+         TXT( "\nType     : " );
+         ENM( src->SrcRegisterExtMod.Type, TGSI_SRC_REGISTER_EXTS );
+         if( deflt || fs->SrcRegisterExtMod.Complement != src->SrcRegisterExtMod.Complement ) {
+            TXT( "\nComplement: " );
+            UID( src->SrcRegisterExtMod.Complement );
+         }
+         if( deflt || fs->SrcRegisterExtMod.Bias != src->SrcRegisterExtMod.Bias ) {
+            TXT( "\nBias     : " );
+            UID( src->SrcRegisterExtMod.Bias );
+         }
+         if( deflt || fs->SrcRegisterExtMod.Scale2X != src->SrcRegisterExtMod.Scale2X ) {
+            TXT( "\nScale2X   : " );
+            UID( src->SrcRegisterExtMod.Scale2X );
+         }
+         if( deflt || fs->SrcRegisterExtMod.Absolute != src->SrcRegisterExtMod.Absolute ) {
+            TXT( "\nAbsolute  : " );
+            UID( src->SrcRegisterExtMod.Absolute );
+         }
+         if( deflt || fs->SrcRegisterExtMod.Negate != src->SrcRegisterExtMod.Negate ) {
+            TXT( "\nNegate   : " );
+            UID( src->SrcRegisterExtMod.Negate );
+         }
+         if( ignored ) {
+            TXT( "\nPadding   : " );
+            UIX( src->SrcRegisterExtMod.Padding );
+            if( deflt || fs->SrcRegisterExtMod.Extended != src->SrcRegisterExtMod.Extended ) {
+               TXT( "\nExtended  : " );
+               UID( src->SrcRegisterExtMod.Extended );
+            }
+         }
+      }
+   }
+}
+
+void
+tgsi_dump_c(
+   const struct tgsi_token *tokens,
+   uint flags )
+{
+   struct tgsi_parse_context parse;
+   struct tgsi_full_instruction fi;
+   struct tgsi_full_declaration fd;
+   uint ignored = flags & TGSI_DUMP_C_IGNORED;
+   uint deflt = flags & TGSI_DUMP_C_DEFAULT;
+   uint instno = 0;
+
+   /* sanity checks */
+   assert(strcmp(TGSI_OPCODES[TGSI_OPCODE_CONT], "OPCODE_CONT") == 0);
+   assert(strcmp(TGSI_OPCODES[TGSI_OPCODE_END], "OPCODE_END") == 0);
+
+   tgsi_parse_init( &parse, tokens );
+
+   TXT( "tgsi-dump begin -----------------" );
+
+   TXT( "\nMajorVersion: " );
+   UID( parse.FullVersion.Version.MajorVersion );
+   TXT( "\nMinorVersion: " );
+   UID( parse.FullVersion.Version.MinorVersion );
+   EOL();
+
+   TXT( "\nHeaderSize: " );
+   UID( parse.FullHeader.Header.HeaderSize );
+   TXT( "\nBodySize  : " );
+   UID( parse.FullHeader.Header.BodySize );
+   TXT( "\nProcessor : " );
+   ENM( parse.FullHeader.Processor.Processor, TGSI_PROCESSOR_TYPES );
+   EOL();
+
+   fi = tgsi_default_full_instruction();
+   fd = tgsi_default_full_declaration();
+
+   while( !tgsi_parse_end_of_tokens( &parse ) ) {
+      tgsi_parse_token( &parse );
+
+      TXT( "\nType       : " );
+      ENM( parse.FullToken.Token.Type, TGSI_TOKEN_TYPES );
+      if( ignored ) {
+         TXT( "\nSize       : " );
+         UID( parse.FullToken.Token.Size );
+         if( deflt || parse.FullToken.Token.Extended ) {
+            TXT( "\nExtended   : " );
+            UID( parse.FullToken.Token.Extended );
+         }
+      }
+
+      switch( parse.FullToken.Token.Type ) {
+      case TGSI_TOKEN_TYPE_DECLARATION:
+         dump_declaration_verbose(
+            &parse.FullToken.FullDeclaration,
+            ignored,
+            deflt,
+            &fd );
+         break;
+
+      case TGSI_TOKEN_TYPE_IMMEDIATE:
+         dump_immediate_verbose(
+            &parse.FullToken.FullImmediate,
+            ignored );
+         break;
+
+      case TGSI_TOKEN_TYPE_INSTRUCTION:
+         dump_instruction_verbose(
+            &parse.FullToken.FullInstruction,
+            ignored,
+            deflt,
+            &fi );
+         break;
+
+      default:
+         assert( 0 );
+      }
+
+      EOL();
+   }
+
+   TXT( "\ntgsi-dump end -------------------\n" );
+
+   tgsi_parse_free( &parse );
+}
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_dump_c.h b/src/gallium/auxiliary/tgsi/util/tgsi_dump_c.h
new file mode 100644
index 0000000000..d91cd35b3b
--- /dev/null
+++ b/src/gallium/auxiliary/tgsi/util/tgsi_dump_c.h
@@ -0,0 +1,49 @@
+/**************************************************************************
+ * 
+ * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#ifndef TGSI_DUMP_C_H
+#define TGSI_DUMP_C_H
+
+#include "pipe/p_shader_tokens.h"
+
+#if defined __cplusplus
+extern "C" {
+#endif
+
+#define TGSI_DUMP_C_IGNORED 1
+#define TGSI_DUMP_C_DEFAULT 2
+
+void
+tgsi_dump_c(
+   const struct tgsi_token *tokens,
+   uint flags );
+
+#if defined __cplusplus
+}
+#endif
+
+#endif /* TGSI_DUMP_C_H */
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_iterate.c b/src/gallium/auxiliary/tgsi/util/tgsi_iterate.c
new file mode 100644
index 0000000000..5371a88b96
--- /dev/null
+++ b/src/gallium/auxiliary/tgsi/util/tgsi_iterate.c
@@ -0,0 +1,85 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include "pipe/p_debug.h"
+#include "tgsi_iterate.h"
+
+boolean
+tgsi_iterate_shader(
+   const struct tgsi_token *tokens,
+   struct tgsi_iterate_context *ctx )
+{
+   struct tgsi_parse_context parse;
+
+   if (tgsi_parse_init( &parse, tokens ) != TGSI_PARSE_OK)
+      return FALSE;
+
+   ctx->processor = parse.FullHeader.Processor;
+   ctx->version = parse.FullVersion.Version;
+
+   if (ctx->prolog)
+      if (!ctx->prolog( ctx ))
+         goto fail;
+
+   while (!tgsi_parse_end_of_tokens( &parse )) {
+      tgsi_parse_token( &parse );
+
+      switch (parse.FullToken.Token.Type) {
+      case TGSI_TOKEN_TYPE_INSTRUCTION:
+         if (ctx->iterate_instruction)
+            if (!ctx->iterate_instruction( ctx, &parse.FullToken.FullInstruction ))
+               goto fail;
+         break;
+
+      case TGSI_TOKEN_TYPE_DECLARATION:
+         if (ctx->iterate_declaration)
+            if (!ctx->iterate_declaration( ctx, &parse.FullToken.FullDeclaration ))
+               goto fail;
+         break;
+
+      case TGSI_TOKEN_TYPE_IMMEDIATE:
+         if (ctx->iterate_immediate)
+            if (!ctx->iterate_immediate( ctx, &parse.FullToken.FullImmediate ))
+               goto fail;
+         break;
+
+      default:
+         assert( 0 );
+      }
+   }
+
+   if (ctx->epilog)
+      if (!ctx->epilog( ctx ))
+         goto fail;
+
+   tgsi_parse_free( &parse );
+   return TRUE;
+
+fail:
+   tgsi_parse_free( &parse );
+   return FALSE;
+}
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_iterate.h b/src/gallium/auxiliary/tgsi/util/tgsi_iterate.h
new file mode 100644
index 0000000000..f5bebf89b8
--- /dev/null
+++ b/src/gallium/auxiliary/tgsi/util/tgsi_iterate.h
@@ -0,0 +1,76 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#ifndef TGSI_ITERATE_H
+#define TGSI_ITERATE_H
+
+#include "pipe/p_shader_tokens.h"
+#include "tgsi/util/tgsi_parse.h"
+
+#if defined __cplusplus
+extern "C" {
+#endif
+
+struct tgsi_iterate_context
+{
+   boolean
+   (* prolog)(
+      struct tgsi_iterate_context *ctx );
+
+   boolean
+   (* iterate_instruction)(
+      struct tgsi_iterate_context *ctx,
+      struct tgsi_full_instruction *inst );
+
+   boolean
+   (* iterate_declaration)(
+      struct tgsi_iterate_context *ctx,
+      struct tgsi_full_declaration *decl );
+
+   boolean
+   (* iterate_immediate)(
+      struct tgsi_iterate_context *ctx,
+      struct tgsi_full_immediate *imm );
+
+   boolean
+   (* epilog)(
+      struct tgsi_iterate_context *ctx );
+
+   struct tgsi_processor processor;
+   struct tgsi_version version;
+};
+
+boolean
+tgsi_iterate_shader(
+   const struct tgsi_token *tokens,
+   struct tgsi_iterate_context *ctx );
+
+#if defined __cplusplus
+}
+#endif
+
+#endif /* TGSI_ITERATE_H */
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_sanity.c b/src/gallium/auxiliary/tgsi/util/tgsi_sanity.c
new file mode 100644
index 0000000000..9673f061ce
--- /dev/null
+++ b/src/gallium/auxiliary/tgsi/util/tgsi_sanity.c
@@ -0,0 +1,341 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include "pipe/p_debug.h"
+#include "tgsi_sanity.h"
+#include "tgsi_iterate.h"
+
+#define MAX_REGISTERS 256
+
+typedef uint reg_flag;
+
+#define BITS_IN_REG_FLAG (sizeof( reg_flag ) * 8)
+
+struct sanity_check_ctx
+{
+   struct tgsi_iterate_context iter;
+
+   reg_flag regs_decl[TGSI_FILE_COUNT][MAX_REGISTERS / BITS_IN_REG_FLAG];
+   reg_flag regs_used[TGSI_FILE_COUNT][MAX_REGISTERS / BITS_IN_REG_FLAG];
+   boolean regs_ind_used[TGSI_FILE_COUNT];
+   uint num_imms;
+   uint num_instructions;
+   uint index_of_END;
+
+   uint errors;
+   uint warnings;
+};
+
+static void
+report_error(
+   struct sanity_check_ctx *ctx,
+   const char *format,
+   ... )
+{
+   va_list args;
+
+   debug_printf( "Error  : " );
+   va_start( args, format );
+   _debug_vprintf( format, args );
+   va_end( args );
+   debug_printf( "\n" );
+   ctx->errors++;
+}
+
+static void
+report_warning(
+   struct sanity_check_ctx *ctx,
+   const char *format,
+   ... )
+{
+   va_list args;
+
+   debug_printf( "Warning: " );
+   va_start( args, format );
+   _debug_vprintf( format, args );
+   va_end( args );
+   debug_printf( "\n" );
+   ctx->warnings++;
+}
+
+static boolean
+check_file_name(
+   struct sanity_check_ctx *ctx,
+   uint file )
+{
+   if (file <= TGSI_FILE_NULL || file >= TGSI_FILE_COUNT) {
+      report_error( ctx, "Invalid register file name" );
+      return FALSE;
+   }
+   return TRUE;
+}
+
+static boolean
+is_register_declared(
+   struct sanity_check_ctx *ctx,
+   uint file,
+   int index )
+{
+   assert( index >= 0 && index < MAX_REGISTERS );
+
+   return (ctx->regs_decl[file][index / BITS_IN_REG_FLAG] & (1 << (index % BITS_IN_REG_FLAG))) ? TRUE : FALSE;
+}
+
+static boolean
+is_any_register_declared(
+   struct sanity_check_ctx *ctx,
+   uint file )
+{
+   uint i;
+
+   for (i = 0; i < MAX_REGISTERS / BITS_IN_REG_FLAG; i++)
+      if (ctx->regs_decl[file][i])
+         return TRUE;
+   return FALSE;
+}
+
+static boolean
+is_register_used(
+   struct sanity_check_ctx *ctx,
+   uint file,
+   int index )
+{
+   assert( index < MAX_REGISTERS );
+
+   return (ctx->regs_used[file][index / BITS_IN_REG_FLAG] & (1 << (index % BITS_IN_REG_FLAG))) ? TRUE : FALSE;
+}
+
+static const char *file_names[] =
+{
+   "NULL",
+   "CONST",
+   "IN",
+   "OUT",
+   "TEMP",
+   "SAMP",
+   "ADDR",
+   "IMM"
+};
+
+static boolean
+check_register_usage(
+   struct sanity_check_ctx *ctx,
+   uint file,
+   int index,
+   const char *name,
+   boolean indirect_access )
+{
+   if (!check_file_name( ctx, file ))
+      return FALSE;
+   if (indirect_access) {
+      if (!is_any_register_declared( ctx, file ))
+         report_error( ctx, "%s: Undeclared %s register", file_names[file], name );
+      ctx->regs_ind_used[file] = TRUE;
+   }
+   else {
+      if (!is_register_declared( ctx, file, index ))
+         report_error( ctx, "%s[%d]: Undeclared %s register", file_names[file], index, name );
+      ctx->regs_used[file][index / BITS_IN_REG_FLAG] |= (1 << (index % BITS_IN_REG_FLAG));
+   }
+   return TRUE;
+}
+
+static boolean
+iter_instruction(
+   struct tgsi_iterate_context *iter,
+   struct tgsi_full_instruction *inst )
+{
+   struct sanity_check_ctx *ctx = (struct sanity_check_ctx *) iter;
+   uint i;
+
+   /* There must be no other instructions after END.
+    */
+   if (ctx->index_of_END != ~0) {
+      report_error( ctx, "Unexpected instruction after END" );
+   }
+   else if (inst->Instruction.Opcode == TGSI_OPCODE_END) {
+      ctx->index_of_END = ctx->num_instructions;
+   }
+
+   /* Check destination and source registers' validity.
+    * Mark the registers as used.
+    */
+   for (i = 0; i < inst->Instruction.NumDstRegs; i++) {
+      check_register_usage(
+         ctx,
+         inst->FullDstRegisters[i].DstRegister.File,
+         inst->FullDstRegisters[i].DstRegister.Index,
+         "destination",
+         FALSE );
+   }
+   for (i = 0; i < inst->Instruction.NumSrcRegs; i++) {
+      check_register_usage(
+         ctx,
+         inst->FullSrcRegisters[i].SrcRegister.File,
+         inst->FullSrcRegisters[i].SrcRegister.Index,
+         "source",
+         inst->FullSrcRegisters[i].SrcRegister.Indirect );
+      if (inst->FullSrcRegisters[i].SrcRegister.Indirect) {
+         uint file;
+         int index;
+
+         file = inst->FullSrcRegisters[i].SrcRegisterInd.File;
+         index = inst->FullSrcRegisters[i].SrcRegisterInd.Index;
+         check_register_usage(
+            ctx,
+            file,
+            index,
+            "indirect",
+            FALSE );
+         if (file != TGSI_FILE_ADDRESS || index != 0)
+            report_warning( ctx, "Indirect register not ADDR[0]" );
+      }
+   }
+
+   ctx->num_instructions++;
+
+   return TRUE;
+}
+
+static boolean
+iter_declaration(
+   struct tgsi_iterate_context *iter,
+   struct tgsi_full_declaration *decl )
+{
+   struct sanity_check_ctx *ctx = (struct sanity_check_ctx *) iter;
+   uint file;
+   uint i;
+
+   /* No declarations allowed after the first instruction.
+    */
+   if (ctx->num_instructions > 0)
+      report_error( ctx, "Instruction expected but declaration found" );
+
+   /* Check registers' validity.
+    * Mark the registers as declared.
+    */
+   file = decl->Declaration.File;
+   if (!check_file_name( ctx, file ))
+      return TRUE;
+   for (i = decl->DeclarationRange.First; i <= decl->DeclarationRange.Last; i++) {
+      if (is_register_declared( ctx, file, i ))
+         report_error( ctx, "The same register declared twice" );
+      ctx->regs_decl[file][i / BITS_IN_REG_FLAG] |= (1 << (i % BITS_IN_REG_FLAG));
+   }
+
+   return TRUE;
+}
+
+static boolean
+iter_immediate(
+   struct tgsi_iterate_context *iter,
+   struct tgsi_full_immediate *imm )
+{
+   struct sanity_check_ctx *ctx = (struct sanity_check_ctx *) iter;
+
+   assert( ctx->num_imms < MAX_REGISTERS );
+
+   /* No immediates allowed after the first instruction.
+    */
+   if (ctx->num_instructions > 0)
+      report_error( ctx, "Instruction expected but immediate found" );
+
+   /* Mark the register as declared.
+    */
+   ctx->regs_decl[TGSI_FILE_IMMEDIATE][ctx->num_imms / BITS_IN_REG_FLAG] |= (1 << (ctx->num_imms % BITS_IN_REG_FLAG));
+   ctx->num_imms++;
+
+   /* Check data type validity.
+    */
+   if (imm->Immediate.DataType != TGSI_IMM_FLOAT32) {
+      report_error( ctx, "Invalid immediate data type" );
+      return TRUE;
+   }
+
+   return TRUE;
+}
+
+static boolean
+epilog(
+   struct tgsi_iterate_context *iter )
+{
+   struct sanity_check_ctx *ctx = (struct sanity_check_ctx *) iter;
+   uint file;
+
+   /* There must be an END instruction at the end.
+    */
+   if (ctx->index_of_END == ~0 || ctx->index_of_END != ctx->num_instructions - 1) {
+      report_error( ctx, "Expected END at end of instruction sequence" );
+   }
+
+   /* Check if all declared registers were used.
+    */
+   for (file = TGSI_FILE_NULL; file < TGSI_FILE_COUNT; file++) {
+      uint i;
+
+      for (i = 0; i < MAX_REGISTERS; i++) {
+         if (is_register_declared( ctx, file, i ) && !is_register_used( ctx, file, i ) && !ctx->regs_ind_used[file]) {
+            report_warning( ctx, "Register never used" );
+         }
+      }
+   }
+
+   /* Print totals, if any.
+    */
+   if (ctx->errors || ctx->warnings)
+      debug_printf( "\n%u errors, %u warnings", ctx->errors, ctx->warnings );
+
+   return TRUE;
+}
+
+boolean
+tgsi_sanity_check(
+   struct tgsi_token *tokens )
+{
+   struct sanity_check_ctx ctx;
+
+   ctx.iter.prolog = NULL;
+   ctx.iter.iterate_instruction = iter_instruction;
+   ctx.iter.iterate_declaration = iter_declaration;
+   ctx.iter.iterate_immediate = iter_immediate;
+   ctx.iter.epilog = epilog;
+
+   memset( ctx.regs_decl, 0, sizeof( ctx.regs_decl ) );
+   memset( ctx.regs_used, 0, sizeof( ctx.regs_used ) );
+   memset( ctx.regs_ind_used, 0, sizeof( ctx.regs_ind_used ) );
+   ctx.num_imms = 0;
+   ctx.num_instructions = 0;
+   ctx.index_of_END = ~0;
+
+   ctx.errors = 0;
+   ctx.warnings = 0;
+
+   if (!tgsi_iterate_shader( tokens, &ctx.iter ))
+      return FALSE;
+
+   return ctx.errors == 0;
+}
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_sanity.h b/src/gallium/auxiliary/tgsi/util/tgsi_sanity.h
new file mode 100644
index 0000000000..ca45e94c7a
--- /dev/null
+++ b/src/gallium/auxiliary/tgsi/util/tgsi_sanity.h
@@ -0,0 +1,49 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#ifndef TGSI_SANITY_H
+#define TGSI_SANITY_H
+
+#include "pipe/p_shader_tokens.h"
+
+#if defined __cplusplus
+extern "C" {
+#endif
+
+/* Check the given token stream for errors and common mistakes.
+ * Diagnostic messages are printed out to the debug output.
+ * Returns TRUE if there are no errors, even though there could be some warnings.
+ */
+boolean
+tgsi_sanity_check(
+   struct tgsi_token *tokens );
+
+#if defined __cplusplus
+}
+#endif
+
+#endif /* TGSI_SANITY_H */
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_text.c b/src/gallium/auxiliary/tgsi/util/tgsi_text.c
index 1b283feb4c..35cb3055bb 100644
--- a/src/gallium/auxiliary/tgsi/util/tgsi_text.c
+++ b/src/gallium/auxiliary/tgsi/util/tgsi_text.c
@@ -29,6 +29,7 @@
 #include "tgsi_text.h"
 #include "tgsi_build.h"
 #include "tgsi_parse.h"
+#include "tgsi_sanity.h"
 #include "tgsi_util.h"
 
 static boolean is_alpha_underscore( const char *cur )
@@ -225,24 +226,21 @@ static const char *file_names[TGSI_FILE_COUNT] =
 };
 
 static boolean
-parse_file(
-   struct translate_ctx *ctx,
-   uint *file )
+parse_file( const char **pcur, uint *file )
 {
    uint i;
 
    for (i = 0; i < TGSI_FILE_COUNT; i++) {
-      const char *cur = ctx->cur;
+      const char *cur = *pcur;
 
       if (str_match_no_case( &cur, file_names[i] )) {
          if (!is_digit_alpha_underscore( cur )) {
-            ctx->cur = cur;
+            *pcur = cur;
             *file = i;
             return TRUE;
          }
       }
    }
-   report_error( ctx, "Unknown register file" );
    return FALSE;
 }
 
@@ -289,72 +287,153 @@ parse_opt_writemask(
    return TRUE;
 }
 
-/* Parse register part common for decls and operands.
- *    <register_prefix> ::= <file> `[' <index>
+/* <register_file_bracket> ::= <file> `['
  */
 static boolean
-parse_register_prefix(
+parse_register_file_bracket(
    struct translate_ctx *ctx,
-   uint *file,
-   uint *index )
+   uint *file )
 {
-   if (!parse_file( ctx, file ))
+   if (!parse_file( &ctx->cur, file )) {
+      report_error( ctx, "Unknown register file" );
       return FALSE;
+   }
    eat_opt_white( &ctx->cur );
    if (*ctx->cur != '[') {
       report_error( ctx, "Expected `['" );
       return FALSE;
    }
    ctx->cur++;
+   return TRUE;
+}
+
+/* <register_file_bracket_index> ::= <register_file_bracket> <uint>
+ */
+static boolean
+parse_register_file_bracket_index(
+   struct translate_ctx *ctx,
+   uint *file,
+   int *index )
+{
+   uint uindex;
+
+   if (!parse_register_file_bracket( ctx, file ))
+      return FALSE;
    eat_opt_white( &ctx->cur );
-   if (!parse_uint( &ctx->cur, index )) {
-      report_error( ctx, "Expected literal integer" );
+   if (!parse_uint( &ctx->cur, &uindex )) {
+      report_error( ctx, "Expected literal unsigned integer" );
+      return FALSE;
+   }
+   *index = (int) uindex;
+   return TRUE;
+}
+
+/* Parse destination register operand.
+ *    <register_dst> ::= <register_file_bracket_index> `]'
+ */
+static boolean
+parse_register_dst(
+   struct translate_ctx *ctx,
+   uint *file,
+   int *index )
+{
+   if (!parse_register_file_bracket_index( ctx, file, index ))
+      return FALSE;
+   eat_opt_white( &ctx->cur );
+   if (*ctx->cur != ']') {
+      report_error( ctx, "Expected `]'" );
       return FALSE;
    }
+   ctx->cur++;
    return TRUE;
 }
 
-/* Parse register operand.
- *    <register> ::= <register_prefix> `]'
+/* Parse source register operand.
+ *    <register_src> ::= <register_file_bracket_index> `]' |
+ *                       <register_file_bracket> <register_dst> `]' |
+ *                       <register_file_bracket> <register_dst> `+' <uint> `]' |
+ *                       <register_file_bracket> <register_dst> `-' <uint> `]'
  */
 static boolean
-parse_register(
+parse_register_src(
    struct translate_ctx *ctx,
    uint *file,
-   uint *index )
+   int *index,
+   uint *ind_file,
+   int *ind_index )
 {
-   if (!parse_register_prefix( ctx, file, index ))
+   const char *cur;
+   uint uindex;
+
+   if (!parse_register_file_bracket( ctx, file ))
       return FALSE;
    eat_opt_white( &ctx->cur );
+   cur = ctx->cur;
+   if (parse_file( &cur, ind_file )) {
+      if (!parse_register_dst( ctx, ind_file, ind_index ))
+         return FALSE;
+      eat_opt_white( &ctx->cur );
+      if (*ctx->cur == '+' || *ctx->cur == '-') {
+         boolean negate;
+
+         negate = *ctx->cur == '-';
+         ctx->cur++;
+         eat_opt_white( &ctx->cur );
+         if (!parse_uint( &ctx->cur, &uindex )) {
+            report_error( ctx, "Expected literal unsigned integer" );
+            return FALSE;
+         }
+         if (negate)
+            *index = -(int) uindex;
+         else
+            *index = (int) uindex;
+      }
+      else {
+         *index = 0;
+      }
+   }
+   else {
+      if (!parse_uint( &ctx->cur, &uindex )) {
+         report_error( ctx, "Expected literal unsigned integer" );
+         return FALSE;
+      }
+      *index = (int) uindex;
+      *ind_file = TGSI_FILE_NULL;
+      *ind_index = 0;
+   }
+   eat_opt_white( &ctx->cur );
    if (*ctx->cur != ']') {
       report_error( ctx, "Expected `]'" );
       return FALSE;
    }
    ctx->cur++;
-   /* TODO: Modulate suffix */
    return TRUE;
 }
 
 /* Parse register declaration.
- *    <register> ::= <register_prefix> `]' | <register_prefix> `..' <index> `]'
+ *    <register_dcl> ::= <register_file_bracket_index> `]' |
+ *                       <register_file_bracket_index> `..' <index> `]'
  */
 static boolean
 parse_register_dcl(
    struct translate_ctx *ctx,
    uint *file,
-   uint *first,
-   uint *last )
+   int *first,
+   int *last )
 {
-   if (!parse_register_prefix( ctx, file, first ))
+   if (!parse_register_file_bracket_index( ctx, file, first ))
       return FALSE;
    eat_opt_white( &ctx->cur );
    if (ctx->cur[0] == '.' && ctx->cur[1] == '.') {
+      uint uindex;
+
       ctx->cur += 2;
       eat_opt_white( &ctx->cur );
-      if (!parse_uint( &ctx->cur, last )) {
+      if (!parse_uint( &ctx->cur, &uindex )) {
          report_error( ctx, "Expected literal integer" );
          return FALSE;
       }
+      *last = (int) uindex;
       eat_opt_white( &ctx->cur );
    }
    else {
@@ -385,11 +464,11 @@ parse_dst_operand(
    struct tgsi_full_dst_register *dst )
 {
    uint file;
-   uint index;
+   int index;
    uint writemask;
    const char *cur;
 
-   if (!parse_register( ctx, &file, &index ))
+   if (!parse_register_dst( ctx, &file, &index ))
       return FALSE;
 
    cur = ctx->cur;
@@ -418,6 +497,52 @@ parse_dst_operand(
 }
 
 static boolean
+parse_optional_swizzle(
+   struct translate_ctx *ctx,
+   uint swizzle[4],
+   boolean *parsed_swizzle,
+   boolean *parsed_extswizzle )
+{
+   const char *cur = ctx->cur;
+
+   *parsed_swizzle = FALSE;
+   *parsed_extswizzle = FALSE;
+
+   eat_opt_white( &cur );
+   if (*cur == '.') {
+      uint i;
+
+      cur++;
+      eat_opt_white( &cur );
+      for (i = 0; i < 4; i++) {
+         if (toupper( *cur ) == 'X')
+            swizzle[i] = TGSI_SWIZZLE_X;
+         else if (toupper( *cur ) == 'Y')
+            swizzle[i] = TGSI_SWIZZLE_Y;
+         else if (toupper( *cur ) == 'Z')
+            swizzle[i] = TGSI_SWIZZLE_Z;
+         else if (toupper( *cur ) == 'W')
+            swizzle[i] = TGSI_SWIZZLE_W;
+         else {
+            if (*cur == '0')
+               swizzle[i] = TGSI_EXTSWIZZLE_ZERO;
+            else if (*cur == '1')
+               swizzle[i] = TGSI_EXTSWIZZLE_ONE;
+            else {
+               report_error( ctx, "Expected register swizzle component `x', `y', `z', `w', `0' or `1'" );
+               return FALSE;
+            }
+            *parsed_extswizzle = TRUE;
+         }
+         cur++;
+      }
+      *parsed_swizzle = TRUE;
+      ctx->cur = cur;
+   }
+   return TRUE;
+}
+
+static boolean
 parse_src_operand(
    struct translate_ctx *ctx,
    struct tgsi_full_src_register *src )
@@ -425,7 +550,12 @@ parse_src_operand(
    const char *cur;
    float value;
    uint file;
-   uint index;
+   int index;
+   uint ind_file;
+   int ind_index;
+   uint swizzle[4];
+   boolean parsed_swizzle;
+   boolean parsed_extswizzle;
 
    if (*ctx->cur == '-') {
       cur = ctx->cur;
@@ -497,40 +627,33 @@ parse_src_operand(
       }
    }
 
-   if (!parse_register( ctx, &file, &index ))
+   if (!parse_register_src( ctx, &file, &index, &ind_file, &ind_index ))
       return FALSE;
    src->SrcRegister.File = file;
    src->SrcRegister.Index = index;
+   if (ind_file != TGSI_FILE_NULL) {
+      src->SrcRegister.Indirect = 1;
+      src->SrcRegisterInd.File = ind_file;
+      src->SrcRegisterInd.Index = ind_index;
+   }
 
-   /* Parse optional swizzle
+   /* Parse optional swizzle.
     */
-   cur = ctx->cur;
-   eat_opt_white( &cur );
-   if (*cur == '.') {
-      uint i;
-
-      cur++;
-      eat_opt_white( &cur );
-      for (i = 0; i < 4; i++) {
-         uint swizzle;
-
-         if (toupper( *cur ) == 'X')
-            swizzle = TGSI_SWIZZLE_X;
-         else if (toupper( *cur ) == 'Y')
-            swizzle = TGSI_SWIZZLE_Y;
-         else if (toupper( *cur ) == 'Z')
-            swizzle = TGSI_SWIZZLE_Z;
-         else if (toupper( *cur ) == 'W')
-            swizzle = TGSI_SWIZZLE_W;
-         else {
-            report_error( ctx, "Expected register swizzle component either `x', `y', `z' or `w'" );
-            return FALSE;
-         }
-         cur++;
-         tgsi_util_set_src_register_swizzle( &src->SrcRegister, swizzle, i );
+   if (parse_optional_swizzle( ctx, swizzle, &parsed_swizzle, &parsed_extswizzle )) {
+      if (parsed_extswizzle) {
+         assert( parsed_swizzle );
+
+         src->SrcRegisterExtSwz.ExtSwizzleX = swizzle[0];
+         src->SrcRegisterExtSwz.ExtSwizzleY = swizzle[1];
+         src->SrcRegisterExtSwz.ExtSwizzleZ = swizzle[2];
+         src->SrcRegisterExtSwz.ExtSwizzleW = swizzle[3];
+      }
+      else if (parsed_swizzle) {
+         src->SrcRegister.SwizzleX = swizzle[0];
+         src->SrcRegister.SwizzleY = swizzle[1];
+         src->SrcRegister.SwizzleZ = swizzle[2];
+         src->SrcRegister.SwizzleW = swizzle[3];
       }
-
-      ctx->cur = cur;
    }
 
    if (src->SrcRegisterExtMod.Complement) {
@@ -601,130 +724,131 @@ struct opcode_info
    uint num_dst;
    uint num_src;
    uint is_tex;
+   uint is_branch;
    const char *mnemonic;
 };
 
 static const struct opcode_info opcode_info[TGSI_OPCODE_LAST] =
 {
-   { 1, 1, 0, "ARL" },
-   { 1, 1, 0, "MOV" },
-   { 1, 1, 0, "LIT" },
-   { 1, 1, 0, "RCP" },
-   { 1, 1, 0, "RSQ" },
-   { 1, 1, 0, "EXP" },
-   { 1, 1, 0, "LOG" },
-   { 1, 2, 0, "MUL" },
-   { 1, 2, 0, "ADD" },
-   { 1, 2, 0, "DP3" },
-   { 1, 2, 0, "DP4" },
-   { 1, 2, 0, "DST" },
-   { 1, 2, 0, "MIN" },
-   { 1, 2, 0, "MAX" },
-   { 1, 2, 0, "SLT" },
-   { 1, 2, 0, "SGE" },
-   { 1, 3, 0, "MAD" },
-   { 1, 2, 0, "SUB" },
-   { 1, 3, 0, "LERP" },
-   { 1, 3, 0, "CND" },
-   { 1, 3, 0, "CND0" },
-   { 1, 3, 0, "DOT2ADD" },
-   { 1, 2, 0, "INDEX" },
-   { 1, 1, 0, "NEGATE" },
-   { 1, 1, 0, "FRAC" },
-   { 1, 3, 0, "CLAMP" },
-   { 1, 1, 0, "FLOOR" },
-   { 1, 1, 0, "ROUND" },
-   { 1, 1, 0, "EXPBASE2" },
-   { 1, 1, 0, "LOGBASE2" },
-   { 1, 2, 0, "POWER" },
-   { 1, 2, 0, "CROSSPRODUCT" },
-   { 1, 2, 0, "MULTIPLYMATRIX" },
-   { 1, 1, 0, "ABS" },
-   { 1, 1, 0, "RCC" },
-   { 1, 2, 0, "DPH" },
-   { 1, 1, 0, "COS" },
-   { 1, 1, 0, "DDX" },
-   { 1, 1, 0, "DDY" },
-   { 0, 1, 0, "KILP" },
-   { 1, 1, 0, "PK2H" },
-   { 1, 1, 0, "PK2US" },
-   { 1, 1, 0, "PK4B" },
-   { 1, 1, 0, "PK4UB" },
-   { 1, 2, 0, "RFL" },
-   { 1, 2, 0, "SEQ" },
-   { 1, 2, 0, "SFL" },
-   { 1, 2, 0, "SGT" },
-   { 1, 1, 0, "SIN" },
-   { 1, 2, 0, "SLE" },
-   { 1, 2, 0, "SNE" },
-   { 1, 2, 0, "STR" },
-   { 1, 2, 1, "TEX" },
-   { 1, 4, 1, "TXD" },
-   { 1, 2, 1, "TXP" },
-   { 1, 1, 0, "UP2H" },
-   { 1, 1, 0, "UP2US" },
-   { 1, 1, 0, "UP4B" },
-   { 1, 1, 0, "UP4UB" },
-   { 1, 3, 0, "X2D" },
-   { 1, 1, 0, "ARA" },
-   { 1, 1, 0, "ARR" },
-   { 0, 1, 0, "BRA" },
-   { 0, 0, 0, "CAL" },
-   { 0, 0, 0, "RET" },
-   { 1, 1, 0, "SSG" },
-   { 1, 3, 0, "CMP" },
-   { 1, 1, 0, "SCS" },
-   { 1, 2, 1, "TXB" },
-   { 1, 1, 0, "NRM" },
-   { 1, 2, 0, "DIV" },
-   { 1, 2, 0, "DP2" },
-   { 1, 2, 1, "TXL" },
-   { 0, 0, 0, "BRK" },
-   { 0, 1, 0, "IF" },
-   { 0, 0, 0, "LOOP" },
-   { 0, 1, 0, "REP" },
-   { 0, 0, 0, "ELSE" },
-   { 0, 0, 0, "ENDIF" },
-   { 0, 0, 0, "ENDLOOP" },
-   { 0, 0, 0, "ENDREP" },
-   { 0, 1, 0, "PUSHA" },
-   { 1, 0, 0, "POPA" },
-   { 1, 1, 0, "CEIL" },
-   { 1, 1, 0, "I2F" },
-   { 1, 1, 0, "NOT" },
-   { 1, 1, 0, "TRUNC" },
-   { 1, 2, 0, "SHL" },
-   { 1, 2, 0, "SHR" },
-   { 1, 2, 0, "AND" },
-   { 1, 2, 0, "OR" },
-   { 1, 2, 0, "MOD" },
-   { 1, 2, 0, "XOR" },
-   { 1, 3, 0, "SAD" },
-   { 1, 2, 1, "TXF" },
-   { 1, 2, 1, "TXQ" },
-   { 0, 0, 0, "CONT" },
-   { 0, 0, 0, "EMIT" },
-   { 0, 0, 0, "ENDPRIM" },
-   { 0, 0, 0, "BGNLOOP2" },
-   { 0, 0, 0, "BGNSUB" },
-   { 0, 0, 0, "ENDLOOP2" },
-   { 0, 0, 0, "ENDSUB" },
-   { 1, 1, 0, "NOISE1" },
-   { 1, 1, 0, "NOISE2" },
-   { 1, 1, 0, "NOISE3" },
-   { 1, 1, 0, "NOISE4" },
-   { 0, 0, 0, "NOP" },
-   { 1, 2, 0, "M4X3" },
-   { 1, 2, 0, "M3X4" },
-   { 1, 2, 0, "M3X3" },
-   { 1, 2, 0, "M3X2" },
-   { 1, 1, 0, "NRM4" },
-   { 0, 1, 0, "CALLNZ" },
-   { 0, 1, 0, "IFC" },
-   { 0, 1, 0, "BREAKC" },
-   { 0, 0, 0, "KIL" },
-   { 0, 0, 0, "END" },
-   { 1, 1, 0, "SWZ" }
+   { 1, 1, 0, 0, "ARL" },
+   { 1, 1, 0, 0, "MOV" },
+   { 1, 1, 0, 0, "LIT" },
+   { 1, 1, 0, 0, "RCP" },
+   { 1, 1, 0, 0, "RSQ" },
+   { 1, 1, 0, 0, "EXP" },
+   { 1, 1, 0, 0, "LOG" },
+   { 1, 2, 0, 0, "MUL" },
+   { 1, 2, 0, 0, "ADD" },
+   { 1, 2, 0, 0, "DP3" },
+   { 1, 2, 0, 0, "DP4" },
+   { 1, 2, 0, 0, "DST" },
+   { 1, 2, 0, 0, "MIN" },
+   { 1, 2, 0, 0, "MAX" },
+   { 1, 2, 0, 0, "SLT" },
+   { 1, 2, 0, 0, "SGE" },
+   { 1, 3, 0, 0, "MAD" },
+   { 1, 2, 0, 0, "SUB" },
+   { 1, 3, 0, 0, "LERP" },
+   { 1, 3, 0, 0, "CND" },
+   { 1, 3, 0, 0, "CND0" },
+   { 1, 3, 0, 0, "DOT2ADD" },
+   { 1, 2, 0, 0, "INDEX" },
+   { 1, 1, 0, 0, "NEGATE" },
+   { 1, 1, 0, 0, "FRAC" },
+   { 1, 3, 0, 0, "CLAMP" },
+   { 1, 1, 0, 0, "FLOOR" },
+   { 1, 1, 0, 0, "ROUND" },
+   { 1, 1, 0, 0, "EXPBASE2" },
+   { 1, 1, 0, 0, "LOGBASE2" },
+   { 1, 2, 0, 0, "POWER" },
+   { 1, 2, 0, 0, "CROSSPRODUCT" },
+   { 1, 2, 0, 0, "MULTIPLYMATRIX" },
+   { 1, 1, 0, 0, "ABS" },
+   { 1, 1, 0, 0, "RCC" },
+   { 1, 2, 0, 0, "DPH" },
+   { 1, 1, 0, 0, "COS" },
+   { 1, 1, 0, 0, "DDX" },
+   { 1, 1, 0, 0, "DDY" },
+   { 0, 1, 0, 0, "KILP" },
+   { 1, 1, 0, 0, "PK2H" },
+   { 1, 1, 0, 0, "PK2US" },
+   { 1, 1, 0, 0, "PK4B" },
+   { 1, 1, 0, 0, "PK4UB" },
+   { 1, 2, 0, 0, "RFL" },
+   { 1, 2, 0, 0, "SEQ" },
+   { 1, 2, 0, 0, "SFL" },
+   { 1, 2, 0, 0, "SGT" },
+   { 1, 1, 0, 0, "SIN" },
+   { 1, 2, 0, 0, "SLE" },
+   { 1, 2, 0, 0, "SNE" },
+   { 1, 2, 0, 0, "STR" },
+   { 1, 2, 1, 0, "TEX" },
+   { 1, 4, 1, 0, "TXD" },
+   { 1, 2, 1, 0, "TXP" },
+   { 1, 1, 0, 0, "UP2H" },
+   { 1, 1, 0, 0, "UP2US" },
+   { 1, 1, 0, 0, "UP4B" },
+   { 1, 1, 0, 0, "UP4UB" },
+   { 1, 3, 0, 0, "X2D" },
+   { 1, 1, 0, 0, "ARA" },
+   { 1, 1, 0, 0, "ARR" },
+   { 0, 1, 0, 0, "BRA" },
+   { 0, 0, 0, 1, "CAL" },
+   { 0, 0, 0, 0, "RET" },
+   { 1, 1, 0, 0, "SSG" },
+   { 1, 3, 0, 0, "CMP" },
+   { 1, 1, 0, 0, "SCS" },
+   { 1, 2, 1, 0, "TXB" },
+   { 1, 1, 0, 0, "NRM" },
+   { 1, 2, 0, 0, "DIV" },
+   { 1, 2, 0, 0, "DP2" },
+   { 1, 2, 1, 0, "TXL" },
+   { 0, 0, 0, 0, "BRK" },
+   { 0, 1, 0, 1, "IF" },
+   { 0, 0, 0, 0, "LOOP" },
+   { 0, 1, 0, 0, "REP" },
+   { 0, 0, 0, 1, "ELSE" },
+   { 0, 0, 0, 0, "ENDIF" },
+   { 0, 0, 0, 0, "ENDLOOP" },
+   { 0, 0, 0, 0, "ENDREP" },
+   { 0, 1, 0, 0, "PUSHA" },
+   { 1, 0, 0, 0, "POPA" },
+   { 1, 1, 0, 0, "CEIL" },
+   { 1, 1, 0, 0, "I2F" },
+   { 1, 1, 0, 0, "NOT" },
+   { 1, 1, 0, 0, "TRUNC" },
+   { 1, 2, 0, 0, "SHL" },
+   { 1, 2, 0, 0, "SHR" },
+   { 1, 2, 0, 0, "AND" },
+   { 1, 2, 0, 0, "OR" },
+   { 1, 2, 0, 0, "MOD" },
+   { 1, 2, 0, 0, "XOR" },
+   { 1, 3, 0, 0, "SAD" },
+   { 1, 2, 1, 0, "TXF" },
+   { 1, 2, 1, 0, "TXQ" },
+   { 0, 0, 0, 0, "CONT" },
+   { 0, 0, 0, 0, "EMIT" },
+   { 0, 0, 0, 0, "ENDPRIM" },
+   { 0, 0, 0, 1, "BGNLOOP2" },
+   { 0, 0, 0, 0, "BGNSUB" },
+   { 0, 0, 0, 1, "ENDLOOP2" },
+   { 0, 0, 0, 0, "ENDSUB" },
+   { 1, 1, 0, 0, "NOISE1" },
+   { 1, 1, 0, 0, "NOISE2" },
+   { 1, 1, 0, 0, "NOISE3" },
+   { 1, 1, 0, 0, "NOISE4" },
+   { 0, 0, 0, 0, "NOP" },
+   { 1, 2, 0, 0, "M4X3" },
+   { 1, 2, 0, 0, "M3X4" },
+   { 1, 2, 0, 0, "M3X3" },
+   { 1, 2, 0, 0, "M3X2" },
+   { 1, 1, 0, 0, "NRM4" },
+   { 0, 1, 0, 0, "CALLNZ" },
+   { 0, 1, 0, 0, "IFC" },
+   { 0, 1, 0, 0, "BREAKC" },
+   { 0, 0, 0, 0, "KIL" },
+   { 0, 0, 0, 0, "END" },
+   { 1, 1, 0, 0, "SWZ" }
 };
 
 static const char *texture_names[TGSI_TEXTURE_COUNT] =
@@ -740,7 +864,10 @@ static const char *texture_names[TGSI_TEXTURE_COUNT] =
    "SHADOWRECT"
 };
 
-static boolean parse_instruction( struct translate_ctx *ctx )
+static boolean
+parse_instruction(
+   struct translate_ctx *ctx,
+   boolean has_label )
 {
    uint i;
    uint saturate = TGSI_SAT_NONE;
@@ -754,23 +881,32 @@ static boolean parse_instruction( struct translate_ctx *ctx )
    for (i = 0; i < TGSI_OPCODE_LAST; i++) {
       const char *cur = ctx->cur;
 
-      if (str_match_no_case( &cur, opcode_info[i].mnemonic )) {
+      info = &opcode_info[i];
+      if (str_match_no_case( &cur, info->mnemonic )) {
          if (str_match_no_case( &cur, "_SATNV" ))
             saturate = TGSI_SAT_MINUS_PLUS_ONE;
          else if (str_match_no_case( &cur, "_SAT" ))
             saturate = TGSI_SAT_ZERO_ONE;
 
-         if (*cur == '\0' || eat_white( &cur )) {
+         if (info->num_dst + info->num_src + info->is_tex == 0) {
+            if (!is_digit_alpha_underscore( cur )) {
+               ctx->cur = cur;
+               break;
+            }
+         }
+         else if (*cur == '\0' || eat_white( &cur )) {
             ctx->cur = cur;
             break;
          }
       }
    }
    if (i == TGSI_OPCODE_LAST) {
-      report_error( ctx, "Unknown opcode" );
+      if (has_label)
+         report_error( ctx, "Unknown opcode" );
+      else
+         report_error( ctx, "Expected `DCL', `IMM' or a label" );
       return FALSE;
    }
-   info = &opcode_info[i];
 
    inst = tgsi_default_full_instruction();
    inst.Instruction.Opcode = i;
@@ -817,6 +953,23 @@ static boolean parse_instruction( struct translate_ctx *ctx )
       }
    }
 
+   if (info->is_branch) {
+      uint target;
+
+      eat_opt_white( &ctx->cur );
+      if (*ctx->cur != ':') {
+         report_error( ctx, "Expected `:'" );
+         return FALSE;
+      }
+      ctx->cur++;
+      eat_opt_white( &ctx->cur );
+      if (!parse_uint( &ctx->cur, &target )) {
+         report_error( ctx, "Expected a label" );
+         return FALSE;
+      }
+      inst.InstructionExtLabel.Label = target;
+   }
+
    advance = tgsi_build_full_instruction(
       &inst,
       ctx->tokens_cur,
@@ -851,8 +1004,8 @@ static boolean parse_declaration( struct translate_ctx *ctx )
 {
    struct tgsi_full_declaration decl;
    uint file;
-   uint first;
-   uint last;
+   int first;
+   int last;
    uint writemask;
    const char *cur;
    uint advance;
@@ -1024,8 +1177,11 @@ static boolean translate( struct translate_ctx *ctx )
          return FALSE;
       }
 
+      if (*ctx->cur == '\0')
+         break;
+
       if (parse_label( ctx, &label_val )) {
-         if (!parse_instruction( ctx ))
+         if (!parse_instruction( ctx, TRUE ))
             return FALSE;
       }
       else if (str_match_no_case( &ctx->cur, "DCL" )) {
@@ -1036,8 +1192,7 @@ static boolean translate( struct translate_ctx *ctx )
          if (!parse_immediate( ctx ))
             return FALSE;
       }
-      else {
-         report_error( ctx, "Expected `DCL', `IMM' or a label" );
+      else if (!parse_instruction( ctx, FALSE )) {
          return FALSE;
       }
    }
@@ -1059,5 +1214,8 @@ tgsi_text_translate(
    ctx.tokens_cur = tokens;
    ctx.tokens_end = tokens + num_tokens;
 
-   return translate( &ctx );
+   if (!translate( &ctx ))
+      return FALSE;
+
+   return tgsi_sanity_check( tokens );
 }
diff --git a/src/gallium/auxiliary/util/p_debug.c b/src/gallium/auxiliary/util/p_debug.c
index 7b28900a25..b0240ad737 100644
--- a/src/gallium/auxiliary/util/p_debug.c
+++ b/src/gallium/auxiliary/util/p_debug.c
@@ -174,20 +174,19 @@ copy(char *dst, const char *start, const char *end, size_t n)
 #endif
 
 
-const char *
-debug_get_option(const char *name, const char *dfault)
+static INLINE const char *
+_debug_get_option(const char *name)
 {
-   const char *result;
 #if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
    /* EngMapFile creates the file if it does not exists, so it must either be
     * disabled on release versions (or put in a less conspicuous place). */
 #ifdef DEBUG
+   const char *result = NULL;
    ULONG_PTR iFile = 0;
    const void *pMap = NULL;
    const char *sol, *eol, *sep;
    static char output[1024];
    
-   result = dfault;
    pMap = EngMapFile(L"\\??\\c:\\gallium.cfg", 0, &iFile);
    if(pMap) {
       sol = (const char *)pMap;
@@ -208,18 +207,27 @@ debug_get_option(const char *name, const char *dfault)
       }
       EngUnmapFile(iFile);
    }
+   return result;
 #else
-   result = dfault;
+   return NULL;
 #endif
 #elif defined(PIPE_SUBSYSTEM_WINDOWS_CE)
    /* TODO: implement */
-   result = dfault;
+   return NULL;
 #else
-   result = getenv(name);
-   if(!result)
-      result = dfault;
+   return getenv(name);
 #endif
+}
 
+const char *
+debug_get_option(const char *name, const char *dfault)
+{
+   const char *result;
+
+   result = _debug_get_option(name);
+   if(!result)
+      result = dfault;
+      
    debug_printf("%s: %s = %s\n", __FUNCTION__, name, result ? result : "(null)");
    
    return result;
@@ -228,7 +236,7 @@ debug_get_option(const char *name, const char *dfault)
 boolean
 debug_get_bool_option(const char *name, boolean dfault)
 {
-   const char *str = debug_get_option(name, NULL);
+   const char *str = _debug_get_option(name);
    boolean result;
    
    if(str == NULL)
@@ -258,7 +266,7 @@ debug_get_num_option(const char *name, long dfault)
    long result;
    const char *str;
    
-   str = debug_get_option(name, NULL);
+   str = _debug_get_option(name);
    if(!str)
       result = dfault;
    else {
@@ -294,7 +302,7 @@ debug_get_flags_option(const char *name,
    unsigned long result;
    const char *str;
    
-   str = debug_get_option(name, NULL);
+   str = _debug_get_option(name);
    if(!str)
       result = dfault;
    else {
diff --git a/src/gallium/auxiliary/util/p_debug_prof.c b/src/gallium/auxiliary/util/p_debug_prof.c
index 958f99c327..5f9772ef91 100644
--- a/src/gallium/auxiliary/util/p_debug_prof.c
+++ b/src/gallium/auxiliary/util/p_debug_prof.c
@@ -46,15 +46,86 @@
 #include "util/u_string.h" 
 
 
-#define PROFILE_FILE_SIZE 4*1024*1024
+#define PROFILE_TABLE_SIZE (1024*1024)
 #define FILE_NAME_SIZE 256
 
-static WCHAR wFileName[FILE_NAME_SIZE];
+struct debug_profile_entry
+{
+   uintptr_t caller;
+   uintptr_t callee;
+   uint64_t samples;
+};
+
+static unsigned long enabled = 0;
+
+static WCHAR wFileName[FILE_NAME_SIZE] = L"\\??\\c:\\00000000.prof";
 static ULONG_PTR iFile = 0;
-static void *pMap = NULL;
-static void *pMapEnd = NULL;
+
+static struct debug_profile_entry *table = NULL;
+static unsigned long free_table_entries = 0;
+static unsigned long max_table_entries = 0;
+
+uint64_t start_stamp = 0;
+uint64_t end_stamp = 0;
+
+
+static void
+debug_profile_entry(uintptr_t caller, uintptr_t callee, uint64_t samples)
+{
+   unsigned hash = ( caller + callee ) & PROFILE_TABLE_SIZE - 1;
+   
+   while(1) {
+      if(table[hash].caller == 0 && table[hash].callee == 0) {
+         table[hash].caller = caller;
+         table[hash].callee = callee;
+         table[hash].samples = samples;
+         --free_table_entries;
+         break;
+      }
+      else if(table[hash].caller == caller && table[hash].callee == callee) {
+         table[hash].samples += samples;
+         break;
+      }
+      else {
+         ++hash;
+      }
+   }
+}
+
+
+static uintptr_t caller_stack[1024];
+static unsigned last_caller = 0;
+
+
+static int64_t delta(void) {
+   int64_t result = end_stamp - start_stamp;
+   if(result > UINT64_C(0xffffffff))
+      result = 0;
+   return result;
+}
+
+
+static void __cdecl 
+debug_profile_enter(uintptr_t callee)
+{
+   uintptr_t caller = last_caller ? caller_stack[last_caller - 1] : 0;
+                
+   if (caller)
+      debug_profile_entry(caller, 0, delta());
+   debug_profile_entry(caller, callee, 1);
+   caller_stack[last_caller++] = callee;
+}
 
 
+static void __cdecl
+debug_profile_exit(uintptr_t callee)
+{
+   debug_profile_entry(callee, 0, delta());
+   if(last_caller)
+      --last_caller;
+}
+   
+   
 /**
  * Called at the start of every method or function.
  * 
@@ -63,27 +134,49 @@ static void *pMapEnd = NULL;
 void __declspec(naked) __cdecl 
 _penter(void) {
    _asm {
-      push ebx
-      mov ebx, [pMap]
-      test ebx, ebx
-      jz done
-      cmp ebx, [pMapEnd]
-      je done
       push eax
+      mov eax, [enabled]
+      test eax, eax
+      jz skip
+
       push edx
-      mov eax, [esp+12]
-      and eax, 0xfffffffe
-      mov [ebx], eax
-      add ebx, 4
+      
       rdtsc
-      mov [ebx], eax
-      add ebx, 4
-      mov [pMap], ebx
+      mov dword ptr [end_stamp], eax
+      mov dword ptr [end_stamp+4], edx
+
+      xor eax, eax
+      mov [enabled], eax
+
+      mov eax, [esp+8]
+
+      push ebx
+      push ecx
+      push ebp
+      push edi
+      push esi
+
+      push eax
+      call debug_profile_enter
+      add esp, 4
+
+      pop esi
+      pop edi
+      pop ebp
+      pop ecx
+      pop ebx
+
+      mov eax, 1
+      mov [enabled], eax 
+
+      rdtsc
+      mov dword ptr [start_stamp], eax
+      mov dword ptr [start_stamp+4], edx
+      
       pop edx
+skip:
       pop eax
-done:
-      pop ebx
-      ret  
+      ret
    }
 }
 
@@ -96,46 +189,60 @@ done:
 void __declspec(naked) __cdecl 
 _pexit(void) {
    _asm {
-      push ebx
-      mov ebx, [pMap]
-      test ebx, ebx
-      jz done
-      cmp ebx, [pMapEnd]
-      je done
       push eax
+      mov eax, [enabled]
+      test eax, eax
+      jz skip
+
       push edx
-      mov eax, [esp+12]
-      or eax, 0x00000001
-      mov [ebx], eax
-      add ebx, 4
+      
       rdtsc
-      mov [ebx], eax
-      add ebx, 4
-      mov [pMap], ebx
-      pop edx
-      pop eax
-done:
+      mov dword ptr [end_stamp], eax
+      mov dword ptr [end_stamp+4], edx
+
+      xor eax, eax
+      mov [enabled], eax
+
+      mov eax, [esp+8]
+
+      push ebx
+      push ecx
+      push ebp
+      push edi
+      push esi
+
+      push eax
+      call debug_profile_exit
+      add esp, 4
+
+      pop esi
+      pop edi
+      pop ebp
+      pop ecx
       pop ebx
-      ret
-   }
-}
 
+      mov eax, 1
+      mov [enabled], eax 
 
-void __declspec(naked) 
-__debug_profile_reference1(void) {
-   _asm {
-      call _penter
-      call _pexit
+      rdtsc
+      mov dword ptr [start_stamp], eax
+      mov dword ptr [start_stamp+4], edx
+      
+      pop edx
+skip:
+      pop eax
       ret
    }
 }
 
 
+/**
+ * Reference function for calibration. 
+ */
 void __declspec(naked) 
-__debug_profile_reference2(void) {
+__debug_profile_reference(void) {
    _asm {
       call _penter
-      call __debug_profile_reference1
       call _pexit
       ret
    }
@@ -145,31 +252,69 @@ __debug_profile_reference2(void) {
 void
 debug_profile_start(void)
 {
-   static unsigned no = 0; 
-   char filename[FILE_NAME_SIZE];
-   unsigned i;
+   WCHAR *p;
 
-   util_snprintf(filename, sizeof(filename), "\\??\\c:\\%03u.prof", ++no);
-   for(i = 0; i < FILE_NAME_SIZE; ++i)
-      wFileName[i] = (WCHAR)filename[i];
-   
-   pMap = EngMapFile(wFileName, PROFILE_FILE_SIZE, &iFile);
-   if(pMap) {
-      pMapEnd = (unsigned char*)pMap + PROFILE_FILE_SIZE;
-      /* reference functions for calibration purposes */
-      __debug_profile_reference2();
+   // increment starting from the less significant digit
+   p = &wFileName[14];
+   while(1) {
+      if(*p == '9') {
+         *p-- = '0';
+      }
+      else {
+         *p += 1;
+         break;
+      }
+   }
+
+   table = EngMapFile(wFileName, 
+                      PROFILE_TABLE_SIZE*sizeof(struct debug_profile_entry), 
+                      &iFile);
+   if(table) {
+      unsigned i;
+      
+      free_table_entries = max_table_entries = PROFILE_TABLE_SIZE;
+      memset(table, 0, PROFILE_TABLE_SIZE*sizeof(struct debug_profile_entry));
+      
+      table[0].caller = (uintptr_t)&__debug_profile_reference;
+      table[0].callee = 0;
+      table[0].samples = 0;
+      --free_table_entries;
+
+      _asm {
+         push edx
+         push eax
+      
+         rdtsc
+         mov dword ptr [start_stamp], eax
+         mov dword ptr [start_stamp+4], edx
+         
+         pop edx
+         pop eax
+      }
+
+      last_caller = 0;
+      
+      enabled = 1;
+
+      for(i = 0; i < 8; ++i) {
+         _asm {
+            call __debug_profile_reference
+         }
+      }
    }
 }
 
+
 void 
 debug_profile_stop(void)
 {
-   if(iFile) {
+   enabled = 0;
+
+   if(iFile)
       EngUnmapFile(iFile);
-      /* TODO: truncate file */
-   }
    iFile = 0;
-   pMapEnd = pMap = NULL; 
+   table = NULL;
+   free_table_entries = max_table_entries = 0;
 }
 
 #endif /* PROFILE */
diff --git a/src/gallium/auxiliary/util/p_tile.c b/src/gallium/auxiliary/util/p_tile.c
index 1a1a2d96cc..1bf0d72733 100644
--- a/src/gallium/auxiliary/util/p_tile.c
+++ b/src/gallium/auxiliary/util/p_tile.c
@@ -346,7 +346,7 @@ r5g6b5_get_tile_rgba(ushort *src,
 
 
 static void
-r5g5b5_put_tile_rgba(ushort *dst,
+r5g6b5_put_tile_rgba(ushort *dst,
                      unsigned w, unsigned h,
                      const float *p,
                      unsigned src_stride)
@@ -632,13 +632,10 @@ ycbcr_get_tile_rgba(ushort *src,
    const float scale = 1.0f / 255.0f;
    unsigned i, j;
 
-   /* we're assuming we're being asked for an even number of texels */
-   assert((w & 1) == 0);
-
    for (i = 0; i < h; i++) {
       float *pRow = p;
       /* do two texels at a time */
-      for (j = 0; j < w; j += 2, src += 2) {
+      for (j = 0; j < (w & ~1); j += 2, src += 2) {
          const ushort t0 = src[0];
          const ushort t1 = src[1];
          const ubyte y0 = (t0 >> 8) & 0xff;  /* luminance */
@@ -676,87 +673,125 @@ ycbcr_get_tile_rgba(ushort *src,
          pRow += 4;
 
       }
+      /* do the last texel */
+      if (w & 1) {
+         const ushort t0 = src[0];
+         const ushort t1 = src[1];
+         const ubyte y0 = (t0 >> 8) & 0xff;  /* luminance */
+         ubyte cb, cr;
+         float r, g, b;
+
+         if (rev) {
+            cb = t1 & 0xff;         /* chroma U */
+            cr = t0 & 0xff;         /* chroma V */
+         }
+         else {
+            cb = t0 & 0xff;         /* chroma U */
+            cr = t1 & 0xff;         /* chroma V */
+         }
+
+         /* even pixel: y0,cr,cb */
+         r = 1.164f * (y0-16) + 1.596f * (cr-128);
+         g = 1.164f * (y0-16) - 0.813f * (cr-128) - 0.391f * (cb-128);
+         b = 1.164f * (y0-16) + 2.018f * (cb-128);
+         pRow[0] = r * scale;
+         pRow[1] = g * scale;
+         pRow[2] = b * scale;
+         pRow[3] = 1.0f;
+         pRow += 4;
+      }
       p += dst_stride;
    }
 }
 
 
 void
-pipe_get_tile_rgba(struct pipe_surface *ps,
-                   uint x, uint y, uint w, uint h,
-                   float *p)
+pipe_tile_raw_to_rgba(enum pipe_format format,
+                      void *src,
+                      uint w, uint h,
+                      float *dst, unsigned dst_stride)
 {
-   unsigned dst_stride = w * 4;
-   void *packed;
-
-   if (pipe_clip_tile(x, y, &w, &h, ps))
-      return;
-
-   packed = MALLOC(pf_get_nblocks(&ps->block, w, h) * ps->block.size);
-
-   if (!packed)
-      return;
-
-   pipe_get_tile_raw(ps, x, y, w, h, packed, 0);
-
-   switch (ps->format) {
+   switch (format) {
    case PIPE_FORMAT_A8R8G8B8_UNORM:
-      a8r8g8b8_get_tile_rgba((unsigned *) packed, w, h, p, dst_stride);
+      a8r8g8b8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_X8R8G8B8_UNORM:
-      x8r8g8b8_get_tile_rgba((unsigned *) packed, w, h, p, dst_stride);
+      x8r8g8b8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_B8G8R8A8_UNORM:
-      b8g8r8a8_get_tile_rgba((unsigned *) packed, w, h, p, dst_stride);
+      b8g8r8a8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_A1R5G5B5_UNORM:
-      a1r5g5b5_get_tile_rgba((ushort *) packed, w, h, p, dst_stride);
+      a1r5g5b5_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_A4R4G4B4_UNORM:
-      a4r4g4b4_get_tile_rgba((ushort *) packed, w, h, p, dst_stride);
+      a4r4g4b4_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_R5G6B5_UNORM:
-      r5g6b5_get_tile_rgba((ushort *) packed, w, h, p, dst_stride);
+      r5g6b5_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_L8_UNORM:
-      l8_get_tile_rgba((ubyte *) packed, w, h, p, dst_stride);
+      l8_get_tile_rgba((ubyte *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_A8_UNORM:
-      a8_get_tile_rgba((ubyte *) packed, w, h, p, dst_stride);
+      a8_get_tile_rgba((ubyte *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_I8_UNORM:
-      i8_get_tile_rgba((ubyte *) packed, w, h, p, dst_stride);
+      i8_get_tile_rgba((ubyte *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_A8L8_UNORM:
-      a8_l8_get_tile_rgba((ushort *) packed, w, h, p, dst_stride);
+      a8_l8_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_R16G16B16A16_SNORM:
-      r16g16b16a16_get_tile_rgba((short *) packed, w, h, p, dst_stride);
+      r16g16b16a16_get_tile_rgba((short *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_Z16_UNORM:
-      z16_get_tile_rgba((ushort *) packed, w, h, p, dst_stride);
+      z16_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_Z32_UNORM:
-      z32_get_tile_rgba((unsigned *) packed, w, h, p, dst_stride);
+      z32_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_S8Z24_UNORM:
    case PIPE_FORMAT_X8Z24_UNORM:
-      s8z24_get_tile_rgba((unsigned *) packed, w, h, p, dst_stride);
+      s8z24_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_Z24S8_UNORM:
-      z24s8_get_tile_rgba((unsigned *) packed, w, h, p, dst_stride);
+      z24s8_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
       break;
    case PIPE_FORMAT_YCBCR:
-      assert((x & 1) == 0);
-      ycbcr_get_tile_rgba((ushort *) packed, w, h, p, dst_stride, FALSE);
+      ycbcr_get_tile_rgba((ushort *) src, w, h, dst, dst_stride, FALSE);
       break;
    case PIPE_FORMAT_YCBCR_REV:
-      assert((x & 1) == 0);
-      ycbcr_get_tile_rgba((ushort *) packed, w, h, p, dst_stride, TRUE);
+      ycbcr_get_tile_rgba((ushort *) src, w, h, dst, dst_stride, TRUE);
       break;
    default:
       assert(0);
    }
+}
+
+
+void
+pipe_get_tile_rgba(struct pipe_surface *ps,
+                   uint x, uint y, uint w, uint h,
+                   float *p)
+{
+   unsigned dst_stride = w * 4;
+   void *packed;
+
+   if (pipe_clip_tile(x, y, &w, &h, ps))
+      return;
+
+   packed = MALLOC(pf_get_nblocks(&ps->block, w, h) * ps->block.size);
+
+   if (!packed)
+      return;
+
+   if(ps->format == PIPE_FORMAT_YCBCR || ps->format == PIPE_FORMAT_YCBCR_REV)
+      assert((x & 1) == 0);
+
+   pipe_get_tile_raw(ps, x, y, w, h, packed, 0);
+
+   pipe_tile_raw_to_rgba(ps->format, packed, w, h, p, dst_stride);
 
    FREE(packed);
 }
@@ -792,7 +827,7 @@ pipe_put_tile_rgba(struct pipe_surface *ps,
       /*a1r5g5b5_put_tile_rgba((ushort *) packed, w, h, p, src_stride);*/
       break;
    case PIPE_FORMAT_R5G6B5_UNORM:
-      r5g5b5_put_tile_rgba((ushort *) packed, w, h, p, src_stride);
+      r5g6b5_put_tile_rgba((ushort *) packed, w, h, p, src_stride);
       break;
    case PIPE_FORMAT_R8G8B8A8_UNORM:
       assert(0);
diff --git a/src/gallium/auxiliary/util/p_tile.h b/src/gallium/auxiliary/util/p_tile.h
index adfec8bcee..a8ac805308 100644
--- a/src/gallium/auxiliary/util/p_tile.h
+++ b/src/gallium/auxiliary/util/p_tile.h
@@ -87,6 +87,13 @@ pipe_put_tile_z(struct pipe_surface *ps,
                 uint x, uint y, uint w, uint h,
                 const uint *z);
 
+void
+pipe_tile_raw_to_rgba(enum pipe_format format,
+                      void *src,
+                      uint w, uint h,
+                      float *dst, unsigned dst_stride);
+
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c
index 3dc9fdd11e..ae087df4cf 100644
--- a/src/gallium/auxiliary/util/u_blit.c
+++ b/src/gallium/auxiliary/util/u_blit.c
@@ -307,8 +307,10 @@ util_blit_pixels(struct blit_state *ctx,
       dstY1 = tmp;
    }
 
-   assert(screen->is_format_supported(screen, src->format, PIPE_TEXTURE));
-   assert(screen->is_format_supported(screen, dst->format, PIPE_TEXTURE));
+   assert(screen->is_format_supported(screen, src->format, PIPE_TEXTURE_2D,
+                                      PIPE_TEXTURE_USAGE_SAMPLER, 0));
+   assert(screen->is_format_supported(screen, dst->format, PIPE_TEXTURE_2D,
+                                      PIPE_TEXTURE_USAGE_SAMPLER, 0));
 
    if(dst->format == src->format && (dstX1 - dstX0) == srcW && (dstY1 - dstY0) == srcH) {
       /* FIXME: this will most surely fail for overlapping rectangles */
@@ -319,7 +321,8 @@ util_blit_pixels(struct blit_state *ctx,
       return;
    }
    
-   assert(screen->is_format_supported(screen, dst->format, PIPE_SURFACE));
+   assert(screen->is_format_supported(screen, dst->format, PIPE_TEXTURE_2D,
+                                      PIPE_TEXTURE_USAGE_RENDER_TARGET, 0));
 
    /*
     * XXX for now we're always creating a temporary texture.
@@ -449,7 +452,8 @@ util_blit_pixels_tex(struct blit_state *ctx,
    t0 = srcY0 / (float)tex->height[0];
    t1 = srcY1 / (float)tex->height[0];
 
-   assert(screen->is_format_supported(screen, dst->format, PIPE_SURFACE));
+   assert(screen->is_format_supported(screen, dst->format, PIPE_TEXTURE_2D,
+                                      PIPE_TEXTURE_USAGE_RENDER_TARGET, 0));
 
    /* save state (restored below) */
    cso_save_blend(ctx->cso);
diff --git a/src/gallium/auxiliary/util/u_gen_mipmap.c b/src/gallium/auxiliary/util/u_gen_mipmap.c
index 5313a8008a..4999822068 100644
--- a/src/gallium/auxiliary/util/u_gen_mipmap.c
+++ b/src/gallium/auxiliary/util/u_gen_mipmap.c
@@ -858,7 +858,8 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
    uint zslice = 0;
 
    /* check if we can render in the texture's format */
-   if (!screen->is_format_supported(screen, pt->format, PIPE_SURFACE)) {
+   if (!screen->is_format_supported(screen, pt->format, PIPE_TEXTURE_2D,
+                                    PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
       fallback_gen_mipmap(ctx, pt, face, baseLevel, lastLevel);
       return;
    }
diff --git a/src/gallium/drivers/cell/ppu/cell_screen.c b/src/gallium/drivers/cell/ppu/cell_screen.c
index 5198b51441..cf9b68b695 100644
--- a/src/gallium/drivers/cell/ppu/cell_screen.c
+++ b/src/gallium/drivers/cell/ppu/cell_screen.c
@@ -115,23 +115,17 @@ cell_get_paramf(struct pipe_screen *screen, int param)
 
 static boolean
 cell_is_format_supported( struct pipe_screen *screen,
-                          enum pipe_format format, uint type )
+                          enum pipe_format format, 
+                          enum pipe_texture_target target,
+                          unsigned tex_usage, 
+                          unsigned geom_flags )
 {
-   switch (type) {
-   case PIPE_TEXTURE:
-      /* cell supports most texture formats, XXX for now anyway */
-      if (format == PIPE_FORMAT_DXT5_RGBA ||
-          format == PIPE_FORMAT_R8G8B8A8_SRGB)
-         return FALSE;
-      else
-         return TRUE;
-   case PIPE_SURFACE:
-      /* cell supports all (off-screen) surface formats, XXX for now */
-      return TRUE;
-   default:
-      assert(0);
+   /* cell supports most formats, XXX for now anyway */
+   if (format == PIPE_FORMAT_DXT5_RGBA ||
+       format == PIPE_FORMAT_R8G8B8A8_SRGB)
       return FALSE;
-   }
+   else
+      return TRUE;
 }
 
 
diff --git a/src/gallium/drivers/i915simple/i915_screen.c b/src/gallium/drivers/i915simple/i915_screen.c
index ba8f183bdf..4b1b8af7da 100644
--- a/src/gallium/drivers/i915simple/i915_screen.c
+++ b/src/gallium/drivers/i915simple/i915_screen.c
@@ -148,7 +148,10 @@ i915_get_paramf(struct pipe_screen *screen, int param)
 
 static boolean
 i915_is_format_supported( struct pipe_screen *screen,
-                          enum pipe_format format, uint type )
+                          enum pipe_format format, 
+                          enum pipe_texture_target target,
+                          unsigned tex_usage, 
+                          unsigned geom_flags )
 {
    static const enum pipe_format tex_supported[] = {
       PIPE_FORMAT_R8G8B8A8_UNORM,
@@ -173,17 +176,10 @@ i915_is_format_supported( struct pipe_screen *screen,
    const enum pipe_format *list;
    uint i;
 
-   switch (type) {
-   case PIPE_TEXTURE:
-      list = tex_supported;
-      break;
-   case PIPE_SURFACE:
+   if(tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET)
       list = surface_supported;
-      break;
-   default:
-      assert(0);
-      return FALSE;
-   }
+   else
+      list = tex_supported;
 
    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
       if (list[i] == format)
diff --git a/src/gallium/drivers/i965simple/brw_screen.c b/src/gallium/drivers/i965simple/brw_screen.c
index b700f7e4f5..6d8f24d1c4 100644
--- a/src/gallium/drivers/i965simple/brw_screen.c
+++ b/src/gallium/drivers/i965simple/brw_screen.c
@@ -136,7 +136,10 @@ brw_get_paramf(struct pipe_screen *screen, int param)
 
 static boolean
 brw_is_format_supported( struct pipe_screen *screen,
-                         enum pipe_format format, uint type )
+                         enum pipe_format format, 
+                         enum pipe_texture_target target,
+                         unsigned tex_usage, 
+                         unsigned geom_flags )
 {
 #if 0
    /* XXX: This is broken -- rewrite if still needed. */
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index e9926bf41f..3f9d4b0ed3 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -115,18 +115,19 @@ softpipe_get_paramf(struct pipe_screen *screen, int param)
  */
 static boolean
 softpipe_is_format_supported( struct pipe_screen *screen,
-                              enum pipe_format format, uint type )
+                              enum pipe_format format, 
+                              enum pipe_texture_target target,
+                              unsigned tex_usage, 
+                              unsigned geom_flags )
 {
-   switch (type) {
-   case PIPE_TEXTURE:
-      /* softpipe supports all texture formats */
-      return TRUE;
-   case PIPE_SURFACE:
-      /* softpipe supports all (off-screen) surface formats */
-      return TRUE;
-   default:
-      assert(0);
+   switch(format) {
+   case PIPE_FORMAT_DXT1_RGB:
+   case PIPE_FORMAT_DXT1_RGBA:
+   case PIPE_FORMAT_DXT3_RGBA:
+   case PIPE_FORMAT_DXT5_RGBA:
       return FALSE;
+   default:
+      return TRUE;
    }
 }
 
diff --git a/src/gallium/drivers/softpipe/sp_setup.c b/src/gallium/drivers/softpipe/sp_setup.c
index e99df9d018..4321ca46f4 100644
--- a/src/gallium/drivers/softpipe/sp_setup.c
+++ b/src/gallium/drivers/softpipe/sp_setup.c
@@ -941,6 +941,11 @@ setup_line(struct setup_context *setup,
    print_vertex(setup, v1);
 #endif
 
+   assert(v0[0][0] < 1.0e9);
+   assert(v0[0][1] < 1.0e9);
+   assert(v1[0][0] < 1.0e9);
+   assert(v1[0][1] < 1.0e9);
+
    if (setup->softpipe->no_rast)
       return;
 
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index f8fadf31b6..b1d100ef53 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -166,11 +166,14 @@ enum pipe_texture_target {
 #define PIPE_TEX_FACE_NEG_Z   5
 #define PIPE_TEX_FACE_MAX     6
 
-/**
- * Surfaces, textures, etc. (others may be added)
- */
-#define PIPE_TEXTURE        1
-#define PIPE_SURFACE        2  /**< user-created surfaces */
+#define PIPE_TEXTURE_USAGE_RENDER_TARGET   0x1
+#define PIPE_TEXTURE_USAGE_DISPLAY_TARGET  0x2 /* ie a backbuffer */
+#define PIPE_TEXTURE_USAGE_PRIMARY         0x4 /* ie a frontbuffer */
+#define PIPE_TEXTURE_USAGE_DEPTH_STENCIL   0x8
+#define PIPE_TEXTURE_USAGE_SAMPLER         0x10
+
+#define PIPE_TEXTURE_GEOM_NON_SQUARE       0x1
+#define PIPE_TEXTURE_GEOM_NON_POWER_OF_TWO 0x2
 
 
 /**
diff --git a/src/gallium/include/pipe/p_format.h b/src/gallium/include/pipe/p_format.h
index a2c6155d01..947c445583 100644
--- a/src/gallium/include/pipe/p_format.h
+++ b/src/gallium/include/pipe/p_format.h
@@ -519,27 +519,16 @@ pf_get_nblocks(const struct pipe_format_block *block, unsigned width, unsigned h
    return pf_get_nblocksx(block, width)*pf_get_nblocksy(block, height);
 }
 
-static INLINE void
-pipe_rect_to_blocks(const struct pipe_format_block *block,
-                    unsigned *width, unsigned *height,
-                    unsigned *src_x, unsigned *src_y,
-		    unsigned *dst_x, unsigned *dst_y)
+static INLINE boolean 
+pf_is_compressed( enum pipe_format format )
 {
-   assert(block->size > 0);
-   assert(block->width > 0);
-   assert(block->height > 0);
-   if(width)
-      *width = pf_get_nblocksx(block, *width);
-   if(height)
-      *height = pf_get_nblocksy(block, *height);
-   if(src_x)
-      *src_x /= block->width;
-   if(src_y)
-      *src_y /= block->height;
-   if(dst_x)
-      *dst_x /= block->width;
-   if(dst_y)
-      *dst_y /= block->height;
+   return pf_layout(format) == PIPE_FORMAT_LAYOUT_DXT ? TRUE : FALSE;
+}
+
+static INLINE boolean 
+pf_is_ycbcr( enum pipe_format format )
+{
+   return pf_layout(format) == PIPE_FORMAT_LAYOUT_YCBCR ? TRUE : FALSE;
 }
 
 #ifdef __cplusplus
diff --git a/src/gallium/include/pipe/p_screen.h b/src/gallium/include/pipe/p_screen.h
index cc8430dae1..b15affef7a 100644
--- a/src/gallium/include/pipe/p_screen.h
+++ b/src/gallium/include/pipe/p_screen.h
@@ -77,11 +77,14 @@ struct pipe_screen {
    /**
     * Check if the given pipe_format is supported as a texture or
     * drawing surface.
-    * \param type  one of PIPE_TEXTURE, PIPE_SURFACE
+    * \param tex_usage  bitmask of PIPE_TEXTURE_USAGE_*
+    * \param flags  bitmask of PIPE_TEXTURE_GEOM_*
     */
    boolean (*is_format_supported)( struct pipe_screen *,
-                                   enum pipe_format format, 
-                                   uint type );
+                                   enum pipe_format format,
+                                   enum pipe_texture_target target,
+                                   unsigned tex_usage, 
+                                   unsigned geom_flags );
 
    /**
     * Create a new texture object, using the given template info.
diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
index 5546796936..2401305eb7 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -287,12 +287,6 @@ struct pipe_surface
 };
 
 
-#define PIPE_TEXTURE_USAGE_RENDER_TARGET   0x1
-#define PIPE_TEXTURE_USAGE_DISPLAY_TARGET  0x2 /* ie a backbuffer */
-#define PIPE_TEXTURE_USAGE_PRIMARY         0x4 /* ie a frontbuffer */
-#define PIPE_TEXTURE_USAGE_DEPTH_STENCIL   0x8
-#define PIPE_TEXTURE_USAGE_SAMPLER         0x10
-
 /**
  * Texture object.
  */
diff --git a/src/gallium/state_trackers/python/SConscript b/src/gallium/state_trackers/python/SConscript
index 57a3fb2075..973d96d55a 100644
--- a/src/gallium/state_trackers/python/SConscript
+++ b/src/gallium/state_trackers/python/SConscript
@@ -1,24 +1,34 @@
+import sys
+import os.path
+
 Import('*')
 
 if 'python' in env['statetrackers']:
 
     env = env.Clone()
     
-    env.Append(CPPPATH = '.')
+    env.Tool('python')
     
     env.Tool('swig')
     env.Append(SWIGPATH = ['#src/gallium/include', '#src/gallium/include/pipe'])
     env.Append(SWIGFLAGS = ['-python', '-keyword'])
     
-    env.ParseConfig('python-config --cflags --ldflags --libs')
-    
-    env.SharedLibrary(
-    	target = '_gallium',
-    	source = [
-    		'gallium.i',
+    env.Append(CPPPATH = '.')
+
+    pyst = env.ConvenienceLibrary(
+        target = 'pyst',
+        source = [
+            'gallium.i',
             'st_device.c',
+            'st_sample.c',
             'st_softpipe_winsys.c',
-    	],
-        SHLIBPREFIX = '',
-        LIBS = softpipe + auxiliaries + env['LIBS'],
+        ],
+    )
+
+    env.SharedLibrary(
+        target = '_gallium',
+        source = [
+            'st_hardpipe_winsys.c',
+        ],
+        LIBS = [pyst, softpipe] + auxiliaries + env['LIBS'],
     )
diff --git a/src/gallium/state_trackers/python/gallium.i b/src/gallium/state_trackers/python/gallium.i
index d6594f3a87..8d8b762ea5 100644
--- a/src/gallium/state_trackers/python/gallium.i
+++ b/src/gallium/state_trackers/python/gallium.i
@@ -44,15 +44,19 @@
 #include "pipe/p_inlines.h"
 #include "pipe/p_util.h"
 #include "pipe/p_shader_tokens.h" 
+#include "cso_cache/cso_context.h"
 #include "util/u_draw_quad.h" 
 #include "util/p_tile.h" 
-#include "cso_cache/cso_context.h"
+#include "tgsi/util/tgsi_text.h" 
+#include "tgsi/util/tgsi_dump.h" 
 
 #include "st_device.h"
+#include "st_sample.h"
 
 %}
 
 %include "carrays.i"
+%array_class(unsigned char, ByteArray);
 %array_class(int, IntArray);
 %array_class(float, FloatArray);
 
@@ -63,6 +67,7 @@
 %rename(Surface) pipe_surface;
 
 %rename(Buffer) pipe_buffer;
+
 %rename(BlendColor) pipe_blend_color;
 %rename(Blend) pipe_blend_state;
 %rename(Clip) pipe_clip_state;
@@ -79,15 +84,30 @@
 %rename(VertexElement) pipe_vertex_element;
 %rename(Viewport) pipe_viewport_state;
 
+%nodefaultctor st_device;
+%nodefaultctor st_context;
+%nodefaultctor pipe_texture;
+%nodefaultctor pipe_surface;
+%nodefaultctor pipe_buffer;
+
+%nodefaultdtor st_device;
+%nodefaultdtor st_context;
+%nodefaultdtor pipe_texture;
+%nodefaultdtor pipe_surface;
+%nodefaultdtor pipe_buffer;
+
+%ignore pipe_texture::screen;
+
+%ignore pipe_surface::winsys;
+%immutable pipe_surface::texture;
+%immutable pipe_surface::buffer;
+
 %include "p_format.i";
 %include "pipe/p_defines.h";
 %include "pipe/p_state.h";
 %include "pipe/p_shader_tokens.h";
 
 
-%nodefaultctor;
-%nodefaultdtor;
-
 struct st_device {
 };
 
@@ -95,9 +115,13 @@ struct st_context {
 };
 
 
+%newobject st_device::texture_create;
+%newobject st_device::context_create;
+%newobject st_device::buffer_create;
+
 %extend st_device {
    
-   st_device(int hardware = 0) {
+   st_device(int hardware = 1) {
       return st_device_create(hardware ? TRUE : FALSE);
    }
 
@@ -134,8 +158,15 @@ struct st_context {
     * drawing surface.
     * \param type  one of PIPE_TEXTURE, PIPE_SURFACE
     */
-   int is_format_supported( enum pipe_format format, unsigned type ) {
-      return $self->screen->is_format_supported( $self->screen, format, type);
+   int is_format_supported( enum pipe_format format, 
+                            enum pipe_texture_target target,
+                            unsigned tex_usage, 
+                            unsigned geom_flags ) {
+      return $self->screen->is_format_supported( $self->screen, 
+                                                 format, 
+                                                 target, 
+                                                 tex_usage, 
+                                                 geom_flags );
    }
 
    struct st_context *
@@ -151,7 +182,7 @@ struct st_context {
          unsigned depth = 1,
          unsigned last_level = 0,
          enum pipe_texture_target target = PIPE_TEXTURE_2D,
-         unsigned usage = 0
+         unsigned tex_usage = 0
       ) {
       struct pipe_texture templat;
       memset(&templat, 0, sizeof(templat));
@@ -162,7 +193,7 @@ struct st_context {
       templat.depth[0] = depth;
       templat.last_level = last_level;
       templat.target = target;
-      templat.tex_usage = usage;
+      templat.tex_usage = tex_usage;
       return $self->screen->texture_create($self->screen, &templat);
    }
    
@@ -201,29 +232,32 @@ struct st_context {
       cso_set_depth_stencil_alpha($self->cso, state);
    }
 
-   
-   void * create_fs( const struct pipe_shader_state *state ) {
-      return $self->pipe->create_fs_state($self->pipe, state);
-   }
-   
-   void bind_fs( void *state_obj ) {
-      $self->pipe->bind_fs_state($self->pipe, state_obj);
-   }
-   
-   void delete_fs( void *state_obj ) {
-      $self->pipe->delete_fs_state($self->pipe, state_obj);
-   }
+   void set_fragment_shader( const struct pipe_shader_state *state ) {
+      void *fs;
+      
+      fs = $self->pipe->create_fs_state($self->pipe, state);
+      if(!fs)
+         return;
+      
+      if(cso_set_fragment_shader_handle($self->cso, fs) != PIPE_OK)
+         return;
 
-   void * create_vs( const struct pipe_shader_state *state ) {
-      return $self->pipe->create_vs_state($self->pipe, state);
+      cso_delete_fragment_shader($self->cso, $self->fs);
+      $self->fs = fs;
    }
-   
-   void bind_vs( void *state_obj ) {
-      $self->pipe->bind_vs_state($self->pipe, state_obj);
-   }
-   
-   void delete_vs( void *state_obj ) {
-      $self->pipe->delete_vs_state($self->pipe, state_obj);
+
+   void set_vertex_shader( const struct pipe_shader_state *state ) {
+      void *vs;
+      
+      vs = $self->pipe->create_vs_state($self->pipe, state);
+      if(!vs)
+         return;
+      
+      if(cso_set_vertex_shader_handle($self->cso, vs) != PIPE_OK)
+         return;
+
+      cso_delete_vertex_shader($self->cso, $self->vs);
+      $self->vs = vs;
    }
 
    /*
@@ -261,6 +295,8 @@ struct st_context {
 
    void set_sampler_texture(unsigned index,
                             struct pipe_texture *texture) {
+      if(!texture)
+         texture = $self->default_texture;
       pipe_texture_reference(&$self->sampler_textures[index], texture);
       $self->pipe->set_sampler_textures($self->pipe, 
                                         PIPE_MAX_SAMPLERS,
@@ -327,10 +363,6 @@ error1:
       ;
    }
    
-   void draw_quad(float x0, float y0, float x1, float y1, float z = 0.0f) {
-      util_draw_texquad($self->pipe, x0, y0, x1, y1, z);
-   }
-   
    void
    flush(void) {
       struct pipe_fence_handle *fence = NULL; 
@@ -360,13 +392,15 @@ error1:
       $self->pipe->surface_fill($self->pipe, dst, x, y, width, height, value);
    }
 
-   void clear(struct pipe_surface *surface, unsigned value) {
+   void surface_clear(struct pipe_surface *surface, unsigned value = 0) {
       $self->pipe->clear($self->pipe, surface, value);
    }
 
 };
 
 
+%newobject pipe_texture::get_surface;
+
 %extend pipe_texture {
    
    ~pipe_texture() {
@@ -374,6 +408,26 @@ error1:
       pipe_texture_reference(&ptr, NULL);
    }
    
+   unsigned get_width(unsigned level=0) {
+      return $self->width[level];
+   }
+   
+   unsigned get_height(unsigned level=0) {
+      return $self->height[level];
+   }
+   
+   unsigned get_depth(unsigned level=0) {
+      return $self->depth[level];
+   }
+   
+   unsigned get_nblocksx(unsigned level=0) {
+      return $self->nblocksx[level];
+   }
+   
+   unsigned get_nblocksy(unsigned level=0) {
+      return $self->nblocksy[level];
+   }
+   
    /** Get a surface which is a "view" into a texture */
    struct pipe_surface *
    get_surface(unsigned face=0, unsigned level=0, unsigned zslice=0, unsigned usage=0 )
@@ -399,13 +453,23 @@ error1:
    void unmap( void );
 
    void
-   get_tile_rgba(unsigned x, unsigned y, unsigned w, unsigned h, float *p) {
-      pipe_get_tile_rgba($self, x, y, w, h, p);
+   get_tile_raw(unsigned x, unsigned y, unsigned w, unsigned h, unsigned char *raw, unsigned stride) {
+      pipe_get_tile_raw($self, x, y, w, h, raw, stride);
+   }
+
+   void
+   put_tile_raw(unsigned x, unsigned y, unsigned w, unsigned h, const unsigned char *raw, unsigned stride) {
+      pipe_put_tile_raw($self, x, y, w, h, raw, stride);
    }
 
    void
-   put_tile_rgba(unsigned x, unsigned y, unsigned w, unsigned h, const float *p) {
-      pipe_put_tile_rgba($self, x, y, w, h, p);
+   get_tile_rgba(unsigned x, unsigned y, unsigned w, unsigned h, float *rgba) {
+      pipe_get_tile_rgba($self, x, y, w, h, rgba);
+   }
+
+   void
+   put_tile_rgba(unsigned x, unsigned y, unsigned w, unsigned h, const float *rgba) {
+      pipe_put_tile_rgba($self, x, y, w, h, rgba);
    }
 
    void
@@ -418,6 +482,43 @@ error1:
       pipe_put_tile_z($self, x, y, w, h, z);
    }
    
+   void
+   sample_rgba(float *rgba) {
+      st_sample_surface($self, rgba);
+   }
+   
+   unsigned
+   compare_tile_rgba(unsigned x, unsigned y, unsigned w, unsigned h, const float *rgba, float tol = 0.0) 
+   {
+      float *rgba2;
+      const float *p1;
+      const float *p2;
+      unsigned i, j, n;
+      
+      rgba2 = MALLOC(h*w*4*sizeof(float));
+      if(!rgba2)
+         return ~0;
+
+      pipe_get_tile_rgba($self, x, y, w, h, rgba2);
+
+      p1 = rgba;
+      p2 = rgba2;
+      n = 0;
+      for(i = h*w; i; --i) {
+         unsigned differs = 0;
+         for(j = 4; j; --j) {
+            float delta = *p2++ - *p1++;
+            if (delta < -tol || delta > tol)
+                differs = 1;
+         }
+         n += differs;
+      }
+      
+      FREE(rgba2);
+      
+      return n;
+   }
+
 };
 
 
@@ -446,3 +547,42 @@ error1:
    }
    
 };
+
+
+%extend pipe_shader_state {
+   
+   pipe_shader_state(const char *text, unsigned num_tokens = 1024) {
+      struct tgsi_token *tokens;
+      struct pipe_shader_state *shader;
+      
+      tokens = MALLOC(num_tokens * sizeof(struct tgsi_token));
+      if(!tokens)
+         goto error1;
+      
+      if(tgsi_text_translate(text, tokens, num_tokens ) != TRUE)
+         goto error2;
+      
+      shader = CALLOC_STRUCT(pipe_shader_state);
+      if(!shader)
+         goto error3;
+      
+      shader->tokens = tokens;
+      
+      return shader;
+      
+error3:
+error2:
+      FREE(tokens);
+error1:      
+      return NULL;
+   }
+   
+   ~pipe_shader_state() {
+      FREE((void*)$self->tokens);
+      FREE($self);
+   }
+
+   void dump(unsigned flags = 0) {
+      tgsi_dump($self->tokens, flags);
+   }
+}
\ No newline at end of file
diff --git a/src/gallium/state_trackers/python/samples/simple.py b/src/gallium/state_trackers/python/samples/tri.py
index 77e182b644..1271c67627 100644
--- a/src/gallium/state_trackers/python/samples/simple.py
+++ b/src/gallium/state_trackers/python/samples/tri.py
@@ -30,7 +30,7 @@
 from gallium import *
 
 
-def save_image(filename, surface):
+def make_image(surface):
     pixels = FloatArray(surface.height*surface.width*4)
     surface.get_tile_rgba(0, 0, surface.width, surface.height, pixels)
 
@@ -45,14 +45,38 @@ def save_image(filename, surface):
             offset = (y*surface.width + x)*4
             r, g, b, a = [int(pixels[offset + ch]*255) for ch in range(4)]
             outpixels[x, y] = r, g, b
+    return outimage
+
+def save_image(filename, surface):
+    outimage = make_image(surface)
     outimage.save(filename, "PNG")
 
+def show_image(surface):
+    outimage = make_image(surface)
+    
+    import Tkinter as tk
+    from PIL import Image, ImageTk
+    root = tk.Tk()
+    
+    root.title('background image')
+    
+    image1 = ImageTk.PhotoImage(outimage)
+    w = image1.width()
+    h = image1.height()
+    x = 100
+    y = 100
+    root.geometry("%dx%d+%d+%d" % (w, h, x, y))
+    panel1 = tk.Label(root, image=image1)
+    panel1.pack(side='top', fill='both', expand='yes')
+    panel1.image = image1
+    root.mainloop()
+
 
 def test(dev):
     ctx = dev.context_create()
 
-    width = 256
-    height = 256
+    width = 255
+    height = 255
 
     # disabled blending/masking
     blend = Blend()
@@ -72,6 +96,7 @@ def test(dev):
     rasterizer.front_winding = PIPE_WINDING_CW
     rasterizer.cull_mode = PIPE_WINDING_NONE
     rasterizer.bypass_clipping = 1
+    rasterizer.scissor = 1
     #rasterizer.bypass_vs = 1
     ctx.set_rasterizer(rasterizer)
 
@@ -102,55 +127,102 @@ def test(dev):
     sampler.normalized_coords = 1
     ctx.set_sampler(0, sampler)
 
-    #  texture 
-    texture = dev.texture_create(PIPE_FORMAT_A8R8G8B8_UNORM, width, height, usage=PIPE_TEXTURE_USAGE_RENDER_TARGET)
-    ctx.set_sampler_texture(0, texture)
-
-    #  drawing dest 
-    surface = texture.get_surface(usage = PIPE_BUFFER_USAGE_GPU_WRITE)
+    # scissor
+    scissor = Scissor()
+    scissor.minx = 0
+    scissor.miny = 0
+    scissor.maxx = width
+    scissor.maxy = height
+    ctx.set_scissor(scissor)
+
+    clip = Clip()
+    clip.nr = 0
+    ctx.set_clip(clip)
+
+    # framebuffer
+    cbuf = dev.texture_create(
+        PIPE_FORMAT_X8R8G8B8_UNORM, 
+        width, height,
+        tex_usage=PIPE_TEXTURE_USAGE_DISPLAY_TARGET,
+    )
+    _cbuf = cbuf.get_surface(usage = PIPE_BUFFER_USAGE_GPU_READ|PIPE_BUFFER_USAGE_GPU_WRITE)
     fb = Framebuffer()
-    fb.width = surface.width
-    fb.height = surface.height
+    fb.width = width
+    fb.height = height
     fb.num_cbufs = 1
-    fb.set_cbuf(0, surface)
+    fb.set_cbuf(0, _cbuf)
     ctx.set_framebuffer(fb)
-
+    _cbuf.clear_value = 0x00000000
+    ctx.surface_clear(_cbuf, _cbuf.clear_value)
+    del _cbuf
+    
     # vertex shader
-    # vs = Shader()
-    #ctx.set_vertex_shader(vs)
+    vs = Shader('''
+        VERT1.1
+        DCL IN[0], POSITION, CONSTANT
+        DCL IN[1], COLOR, CONSTANT
+        DCL OUT[0], POSITION, CONSTANT
+        DCL OUT[1], COLOR, CONSTANT
+        0:MOV OUT[0], IN[0]
+        1:MOV OUT[1], IN[1]
+        2:END
+    ''')
+    #vs.dump()
+    ctx.set_vertex_shader(vs)
 
     # fragment shader
-    #fs = Shader()
-    #ctx.set_fragment_shader(fs)
-
-    if 0:
-        nverts = 4
-        nattrs = 1
-        vertices = FloatArray(n_verts * nattrs * 4)
-
-        # init vertex data that doesn't change
-        for i in range(nverts):
-            for j in range(nattrs):
-                vertices[(i*nattrs +j)*4 + 0] = 0.0
-                vertices[(i*nattrs +j)*4 + 1] = 0.0
-                vertices[(i*nattrs +j)*4 + 2] = 0.0
-                vertices[(i*nattrs +j)*4 + 3] = 0.0
-
-        ctx.draw_vertices(PIPE_PRIM_TRIANGLE_FAN,
-                          4,  #  verts 
-                          2, #  attribs/vert 
-                          vertices)
-    else:
-        ctx.draw_quad(32.0, 32.0, 224.0, 224.0)
+    fs = Shader('''
+        FRAG1.1
+        DCL IN[0], COLOR, LINEAR
+        DCL OUT[0], COLOR, CONSTANT
+        0:MOV OUT[0], IN[0]
+        1:END
+    ''')
+    #fs.dump()
+    ctx.set_fragment_shader(fs)
+
+    nverts = 3
+    nattrs = 2
+    verts = FloatArray(nverts * nattrs * 4)
+
+    verts[ 0] = 128.0 # x1
+    verts[ 1] =  32.0 # y1
+    verts[ 2] =   0.0 # z1
+    verts[ 3] =   1.0 # w1
+    verts[ 4] =   1.0 # r1
+    verts[ 5] =   0.0 # g1
+    verts[ 6] =   0.0 # b1
+    verts[ 7] =   1.0 # a1
+    verts[ 8] =  32.0 # x2
+    verts[ 9] = 224.0 # y2
+    verts[10] =   0.0 # z2
+    verts[11] =   1.0 # w2
+    verts[12] =   0.0 # r2
+    verts[13] =   1.0 # g2
+    verts[14] =   0.0 # b2
+    verts[15] =   1.0 # a2
+    verts[16] = 224.0 # x3
+    verts[17] = 224.0 # y3
+    verts[18] =   0.0 # z3
+    verts[19] =   1.0 # w3
+    verts[20] =   0.0 # r3
+    verts[21] =   0.0 # g3
+    verts[22] =   1.0 # b3
+    verts[23] =   1.0 # a3
+
+    ctx.draw_vertices(PIPE_PRIM_TRIANGLES,
+                      nverts, 
+                      nattrs, 
+                      verts)
 
     ctx.flush()
-
-    save_image("simple.png", surface)
+    
+    show_image(cbuf.get_surface(usage = PIPE_BUFFER_USAGE_CPU_READ|PIPE_BUFFER_USAGE_CPU_WRITE))
 
 
 
 def main():
-    dev = Device(0)
+    dev = Device()
     test(dev)
 
 
diff --git a/src/gallium/state_trackers/python/st_device.c b/src/gallium/state_trackers/python/st_device.c
index 430a7af176..2e53a83eea 100644
--- a/src/gallium/state_trackers/python/st_device.c
+++ b/src/gallium/state_trackers/python/st_device.c
@@ -70,6 +70,7 @@ st_device_create_from_st_winsys(const struct st_winsys *st_ws)
    if(!st_dev)
       return NULL;
    
+   st_dev->refcount = 1;
    st_dev->st_ws = st_ws;
    
    st_dev->screen = st_ws->screen_create();
@@ -82,12 +83,10 @@ st_device_create_from_st_winsys(const struct st_winsys *st_ws)
 
 struct st_device *
 st_device_create(boolean hardware) {
-#if 0
    if(hardware)
-      return st_device_create_from_st_winsys(&st_hardware_winsys);
+      return st_device_create_from_st_winsys(&st_hardpipe_winsys);
    else
-#endif
-      return st_device_create_from_st_winsys(&st_software_winsys);
+      return st_device_create_from_st_winsys(&st_softpipe_winsys);
 }
 
 
@@ -99,25 +98,20 @@ st_context_destroy(struct st_context *st_ctx)
    if(st_ctx) {
       struct st_device *st_dev = st_ctx->st_dev;
       
-      if(st_ctx->vs) {
-         st_ctx->pipe->bind_vs_state(st_ctx->pipe, NULL);
-         st_ctx->pipe->delete_vs_state(st_ctx->pipe, st_ctx->vs);
-      }
-
-      if(st_ctx->fs) {
-         st_ctx->pipe->bind_fs_state(st_ctx->pipe, NULL);
-         st_ctx->pipe->delete_fs_state(st_ctx->pipe, st_ctx->fs);
-      }
-      
-      if(st_ctx->cso)
+      if(st_ctx->cso) {
+         cso_delete_vertex_shader(st_ctx->cso, st_ctx->vs);
+         cso_delete_fragment_shader(st_ctx->cso, st_ctx->fs);
+         
          cso_destroy_context(st_ctx->cso);
+      }
       
       if(st_ctx->pipe)
          st_ctx->st_dev->st_ws->context_destroy(st_ctx->pipe);
       
       for(i = 0; i < PIPE_MAX_SAMPLERS; ++i)
          pipe_texture_reference(&st_ctx->sampler_textures[i], NULL);
-   
+      pipe_texture_reference(&st_ctx->default_texture, NULL);
+
       FREE(st_ctx);
       
       if(!--st_dev->refcount)
@@ -146,8 +140,111 @@ st_context_create(struct st_device *st_dev)
    if(!st_ctx->cso)
       st_context_destroy(st_ctx);
    
+   /* disabled blending/masking */
+   {
+      struct pipe_blend_state blend;
+      memset(&blend, 0, sizeof(blend));
+      blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
+      blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
+      blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
+      blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
+      blend.colormask = PIPE_MASK_RGBA;
+      cso_set_blend(st_ctx->cso, &blend);
+   }
+
+   /* no-op depth/stencil/alpha */
+   {
+      struct pipe_depth_stencil_alpha_state depthstencil;
+      memset(&depthstencil, 0, sizeof(depthstencil));
+      cso_set_depth_stencil_alpha(st_ctx->cso, &depthstencil);
+   }
+
+   /* rasterizer */
+   {
+      struct pipe_rasterizer_state rasterizer;
+      memset(&rasterizer, 0, sizeof(rasterizer));
+      rasterizer.front_winding = PIPE_WINDING_CW;
+      rasterizer.cull_mode = PIPE_WINDING_NONE;
+      rasterizer.bypass_clipping = 1;
+      /*rasterizer.bypass_vs = 1;*/
+      cso_set_rasterizer(st_ctx->cso, &rasterizer);
+   }
+
+   /* identity viewport */
+   {
+      struct pipe_viewport_state viewport;
+      viewport.scale[0] = 1.0;
+      viewport.scale[1] = 1.0;
+      viewport.scale[2] = 1.0;
+      viewport.scale[3] = 1.0;
+      viewport.translate[0] = 0.0;
+      viewport.translate[1] = 0.0;
+      viewport.translate[2] = 0.0;
+      viewport.translate[3] = 0.0;
+      cso_set_viewport(st_ctx->cso, &viewport);
+   }
+
+   /* samplers */
+   {
+      struct pipe_sampler_state sampler;
+      unsigned i;
+      memset(&sampler, 0, sizeof(sampler));
+      sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+      sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+      sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+      sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
+      sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
+      sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
+      sampler.normalized_coords = 1;
+      for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
+         cso_single_sampler(st_ctx->cso, i, &sampler);
+      cso_single_sampler_done(st_ctx->cso);
+   }
+
+   /* default textures */
+   {
+      struct pipe_screen *screen = st_dev->screen;
+      struct pipe_texture templat;
+      struct pipe_surface *surface;
+      unsigned i;
+
+      memset( &templat, 0, sizeof( templat ) );
+      templat.target = PIPE_TEXTURE_2D;
+      templat.format = PIPE_FORMAT_A8R8G8B8_UNORM;
+      templat.block.size = 4;
+      templat.block.width = 1;
+      templat.block.height = 1;
+      templat.width[0] = 1;
+      templat.height[0] = 1;
+      templat.depth[0] = 1;
+      templat.last_level = 0;
+   
+      st_ctx->default_texture = screen->texture_create( screen, &templat );
+      if(st_ctx->default_texture) {
+         surface = screen->get_tex_surface( screen, 
+                                            st_ctx->default_texture, 0, 0, 0,
+                                            PIPE_BUFFER_USAGE_CPU_WRITE );
+         if(surface) {
+            uint32_t *map;
+            map = (uint32_t *) pipe_surface_map(surface, PIPE_BUFFER_USAGE_CPU_WRITE );
+            if(map) {
+               *map = 0x00000000;
+               pipe_surface_unmap( surface );
+            }
+            pipe_surface_reference(&surface, NULL);
+         }
+      }
+   
+      for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
+         pipe_texture_reference(&st_ctx->sampler_textures[i], st_ctx->default_texture);
+      
+      cso_set_sampler_textures(st_ctx->cso, PIPE_MAX_SAMPLERS, st_ctx->sampler_textures);
+   }
+   
    /* vertex shader */
    {
+      struct pipe_shader_state vert_shader;
+
       const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
                                       TGSI_SEMANTIC_GENERIC };
       const uint semantic_indexes[] = { 0, 0 };
@@ -155,15 +252,17 @@ st_context_create(struct st_device *st_dev)
                                                        2, 
                                                        semantic_names,
                                                        semantic_indexes,
-                                                       &st_ctx->vert_shader);
+                                                       &vert_shader);
+      cso_set_vertex_shader_handle(st_ctx->cso, st_ctx->vs);
    }
 
    /* fragment shader */
-   st_ctx->fs = util_make_fragment_passthrough_shader(st_ctx->pipe, 
-                                                      &st_ctx->frag_shader);
-   
-   st_ctx->pipe->bind_fs_state(st_ctx->pipe, st_ctx->fs);
-   st_ctx->pipe->bind_vs_state(st_ctx->pipe, st_ctx->vs);
+   {
+      struct pipe_shader_state frag_shader;
+      st_ctx->fs = util_make_fragment_passthrough_shader(st_ctx->pipe, 
+                                                         &frag_shader);
+      cso_set_fragment_shader_handle(st_ctx->cso, st_ctx->fs);
+   }
 
    return st_ctx;
 }
diff --git a/src/gallium/state_trackers/python/st_device.h b/src/gallium/state_trackers/python/st_device.h
index 46db20acd7..2d95c2da73 100644
--- a/src/gallium/state_trackers/python/st_device.h
+++ b/src/gallium/state_trackers/python/st_device.h
@@ -45,12 +45,10 @@ struct st_context {
    
    struct cso_context *cso;
    
-   struct pipe_shader_state vert_shader;
-   struct pipe_shader_state frag_shader;
-
    void *vs;
    void *fs;
 
+   struct pipe_texture *default_texture;
    struct pipe_texture *sampler_textures[PIPE_MAX_SAMPLERS];
    struct pipe_vertex_buffer vertex_buffers[PIPE_MAX_ATTRIBS];
    struct pipe_vertex_element vertex_elements[PIPE_MAX_ATTRIBS];
diff --git a/src/gallium/state_trackers/python/st_hardpipe_winsys.c b/src/gallium/state_trackers/python/st_hardpipe_winsys.c
new file mode 100644
index 0000000000..1e04998232
--- /dev/null
+++ b/src/gallium/state_trackers/python/st_hardpipe_winsys.c
@@ -0,0 +1,78 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+
+/**
+ * @file
+ * Stub for hardware pipe driver support.
+ */
+
+
+#include "pipe/p_compiler.h"
+
+#include "st_winsys.h"
+
+
+/* XXX: Force init_gallium symbol to be linked */
+extern void init_gallium(void);
+void (*force_init_gallium_linkage)(void) = &init_gallium;
+
+
+static void 
+st_hardpipe_screen_destroy(struct pipe_screen *screen)
+{
+   st_softpipe_winsys.screen_destroy(screen);
+}
+
+
+static struct pipe_screen *
+st_hardpipe_screen_create(void)
+{
+   return st_softpipe_winsys.screen_create();
+}
+
+
+static void
+st_hardpipe_context_destroy(struct pipe_context *pipe)
+{
+   st_softpipe_winsys.context_destroy(pipe);
+}
+
+
+static struct pipe_context *
+st_hardpipe_context_create(struct pipe_screen *screen)
+{
+   return st_softpipe_winsys.context_create(screen);
+}
+
+
+const struct st_winsys st_hardpipe_winsys = {
+   &st_hardpipe_screen_create,
+   &st_hardpipe_screen_destroy,
+   &st_hardpipe_context_create,
+   &st_hardpipe_context_destroy
+};
diff --git a/src/gallium/state_trackers/python/st_sample.c b/src/gallium/state_trackers/python/st_sample.c
new file mode 100644
index 0000000000..b47c7be293
--- /dev/null
+++ b/src/gallium/state_trackers/python/st_sample.c
@@ -0,0 +1,548 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_format.h"
+#include "pipe/p_state.h"
+#include "pipe/p_util.h"
+#include "pipe/p_inlines.h"
+#include "util/p_tile.h"
+
+#include "st_sample.h"
+
+
+/**
+ * Use our own pseudo random generator to ensure consistent runs among
+ * multiple runs and platforms.
+ * 
+ * @sa http://en.wikipedia.org/wiki/Linear_congruential_generator
+ */
+static uint32_t st_random(void) {
+   static uint64_t seed = UINT64_C(0xbb9a063afb0a739d);
+
+   seed = UINT64_C(134775813) * seed + UINT64_C(1);
+   
+   return (uint16_t)(seed >> 32); 
+}
+
+
+/**
+ * We don't want to include the patent-encumbered DXT code here, so instead
+ * we store several uncompressed/compressed data pairs for hardware testing
+ * purposes. 
+ */
+struct dxt_data
+{
+   uint8_t rgba[16*4];
+   uint8_t raw[16];
+};
+
+
+static const struct dxt_data 
+dxt1_rgb_data[] = {
+   {
+      {
+         0x99, 0xb0, 0x8e, 0xff,
+         0x5d, 0x62, 0x89, 0xff,
+         0x99, 0xb0, 0x8e, 0xff,
+         0x99, 0xb0, 0x8e, 0xff,
+         0xd6, 0xff, 0x94, 0xff,
+         0x5d, 0x62, 0x89, 0xff,
+         0x99, 0xb0, 0x8e, 0xff,
+         0xd6, 0xff, 0x94, 0xff,
+         0x5d, 0x62, 0x89, 0xff,
+         0x5d, 0x62, 0x89, 0xff,
+         0x99, 0xb0, 0x8e, 0xff,
+         0x21, 0x14, 0x84, 0xff,
+         0x5d, 0x62, 0x89, 0xff,
+         0x21, 0x14, 0x84, 0xff,
+         0x21, 0x14, 0x84, 0xff,
+         0x99, 0xb0, 0x8e, 0xff
+      },
+      {0xf2, 0xd7, 0xb0, 0x20, 0xae, 0x2c, 0x6f, 0x97}
+   },
+   {
+      {
+         0xb5, 0xcf, 0x9c, 0xff,
+         0x83, 0x8c, 0x8b, 0xff,
+         0x21, 0x08, 0x6b, 0xff,
+         0x83, 0x8c, 0x8b, 0xff,
+         0x52, 0x4a, 0x7b, 0xff,
+         0x83, 0x8c, 0x8b, 0xff,
+         0x83, 0x8c, 0x8b, 0xff,
+         0xb5, 0xcf, 0x9c, 0xff,
+         0x21, 0x08, 0x6b, 0xff,
+         0xb5, 0xcf, 0x9c, 0xff,
+         0x83, 0x8c, 0x8b, 0xff,
+         0x52, 0x4a, 0x7b, 0xff,
+         0xb5, 0xcf, 0x9c, 0xff,
+         0x83, 0x8c, 0x8b, 0xff,
+         0x52, 0x4a, 0x7b, 0xff,
+         0x83, 0x8c, 0x8b, 0xff
+      },
+      {0x73, 0xb6, 0x4d, 0x20, 0x98, 0x2b, 0xe1, 0xb8}
+   },
+   {
+      {
+         0x00, 0x2c, 0xff, 0xff,
+         0x94, 0x8d, 0x7b, 0xff,
+         0x4a, 0x5c, 0xbd, 0xff,
+         0x4a, 0x5c, 0xbd, 0xff,
+         0x4a, 0x5c, 0xbd, 0xff,
+         0x94, 0x8d, 0x7b, 0xff,
+         0x94, 0x8d, 0x7b, 0xff,
+         0x94, 0x8d, 0x7b, 0xff,
+         0xde, 0xbe, 0x39, 0xff,
+         0x94, 0x8d, 0x7b, 0xff,
+         0xde, 0xbe, 0x39, 0xff,
+         0xde, 0xbe, 0x39, 0xff,
+         0xde, 0xbe, 0x39, 0xff,
+         0xde, 0xbe, 0x39, 0xff,
+         0xde, 0xbe, 0x39, 0xff,
+         0x94, 0x8d, 0x7b, 0xff
+      },
+      {0xe7, 0xdd, 0x7f, 0x01, 0xf9, 0xab, 0x08, 0x80}
+   },
+   {
+      {
+         0x6b, 0x24, 0x21, 0xff,
+         0x7b, 0x4f, 0x5d, 0xff,
+         0x7b, 0x4f, 0x5d, 0xff,
+         0x8b, 0x7a, 0x99, 0xff,
+         0x7b, 0x4f, 0x5d, 0xff,
+         0x7b, 0x4f, 0x5d, 0xff,
+         0x6b, 0x24, 0x21, 0xff,
+         0x8b, 0x7a, 0x99, 0xff,
+         0x9c, 0xa6, 0xd6, 0xff,
+         0x6b, 0x24, 0x21, 0xff,
+         0x7b, 0x4f, 0x5d, 0xff,
+         0x8b, 0x7a, 0x99, 0xff,
+         0x6b, 0x24, 0x21, 0xff,
+         0x8b, 0x7a, 0x99, 0xff,
+         0x7b, 0x4f, 0x5d, 0xff,
+         0x9c, 0xa6, 0xd6, 0xff
+      },
+      {0x3a, 0x9d, 0x24, 0x69, 0xbd, 0x9f, 0xb4, 0x39}
+   }
+};
+
+
+static const struct dxt_data 
+dxt1_rgba_data[] = {
+   {
+      {
+         0x00, 0x00, 0x00, 0x00,
+         0x4e, 0xaa, 0x90, 0xff,
+         0x4e, 0xaa, 0x90, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0x4e, 0xaa, 0x90, 0xff,
+         0x29, 0xff, 0xff, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0x4e, 0xaa, 0x90, 0xff,
+         0x73, 0x55, 0x21, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x4e, 0xaa, 0x90, 0xff,
+         0x4e, 0xaa, 0x90, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x4e, 0xaa, 0x90, 0xff
+      },
+      {0xff, 0x2f, 0xa4, 0x72, 0xeb, 0xb2, 0xbd, 0xbe}
+   },
+   {
+      {
+         0xb5, 0xe3, 0x63, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0x6b, 0x24, 0x84, 0xff,
+         0xb5, 0xe3, 0x63, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0xb5, 0xe3, 0x63, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x6b, 0x24, 0x84, 0xff,
+         0x6b, 0x24, 0x84, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0xb5, 0xe3, 0x63, 0xff,
+         0x90, 0x83, 0x73, 0xff,
+         0xb5, 0xe3, 0x63, 0xff
+      },
+      {0x30, 0x69, 0x0c, 0xb7, 0x4d, 0xf7, 0x0f, 0x67}
+   },
+   {
+      {
+         0x00, 0x00, 0x00, 0x00,
+         0xc6, 0x86, 0x8c, 0xff,
+         0xc6, 0x86, 0x8c, 0xff,
+         0x21, 0x65, 0x42, 0xff,
+         0x21, 0x65, 0x42, 0xff,
+         0x21, 0x65, 0x42, 0xff,
+         0x21, 0x65, 0x42, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x21, 0x65, 0x42, 0xff,
+         0xc6, 0x86, 0x8c, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0xc6, 0x86, 0x8c, 0xff
+      },
+      {0x28, 0x23, 0x31, 0xc4, 0x17, 0xc0, 0xd3, 0x7f}
+   },
+   {
+      {
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0xc6, 0xe3, 0x9c, 0xff,
+         0x7b, 0x1c, 0x52, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x00, 0x00, 0x00, 0x00,
+         0x7b, 0x1c, 0x52, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0x7b, 0x1c, 0x52, 0xff,
+         0xa0, 0x7f, 0x77, 0xff,
+         0xc6, 0xe3, 0x9c, 0xff,
+         0x00, 0x00, 0x00, 0x00,
+         0xa0, 0x7f, 0x77, 0xff
+      },
+      {0xea, 0x78, 0x13, 0xc7, 0x7f, 0xfc, 0x33, 0xb6}
+   },
+};
+
+
+static const struct dxt_data 
+dxt3_rgba_data[] = {
+   {
+      {
+         0x6d, 0xc6, 0x96, 0x77,
+         0x6d, 0xc6, 0x96, 0xee,
+         0x6d, 0xc6, 0x96, 0xaa,
+         0x8c, 0xff, 0xb5, 0x44,
+         0x6d, 0xc6, 0x96, 0xff,
+         0x6d, 0xc6, 0x96, 0x88,
+         0x31, 0x55, 0x5a, 0x66,
+         0x6d, 0xc6, 0x96, 0x99,
+         0x31, 0x55, 0x5a, 0xbb,
+         0x31, 0x55, 0x5a, 0x55,
+         0x31, 0x55, 0x5a, 0x11,
+         0x6d, 0xc6, 0x96, 0xcc,
+         0x6d, 0xc6, 0x96, 0xcc,
+         0x6d, 0xc6, 0x96, 0x11,
+         0x31, 0x55, 0x5a, 0x44,
+         0x31, 0x55, 0x5a, 0x88
+      },
+      {0xe7, 0x4a, 0x8f, 0x96, 0x5b, 0xc1, 0x1c, 0x84, 0xf6, 0x8f, 0xab, 0x32, 0x2a, 0x9a, 0x95, 0x5a}
+   },
+   {
+      {
+         0xad, 0xeb, 0x73, 0x99,
+         0x97, 0xaa, 0x86, 0x66,
+         0x6b, 0x28, 0xad, 0x99,
+         0xad, 0xeb, 0x73, 0x99,
+         0x6b, 0x28, 0xad, 0x22,
+         0xad, 0xeb, 0x73, 0xff,
+         0x97, 0xaa, 0x86, 0x55,
+         0x6b, 0x28, 0xad, 0x55,
+         0x6b, 0x28, 0xad, 0x44,
+         0xad, 0xeb, 0x73, 0x33,
+         0x6b, 0x28, 0xad, 0xee,
+         0x6b, 0x28, 0xad, 0x99,
+         0x97, 0xaa, 0x86, 0x66,
+         0xad, 0xeb, 0x73, 0xbb,
+         0x97, 0xaa, 0x86, 0x99,
+         0xad, 0xeb, 0x73, 0xbb
+      },
+      {0x69, 0x99, 0xf2, 0x55, 0x34, 0x9e, 0xb6, 0xb9, 0x4e, 0xaf, 0x55, 0x69, 0x18, 0x61, 0x51, 0x22}
+   },
+   {
+      {
+         0x63, 0xd7, 0xd6, 0x00,
+         0x57, 0x62, 0x5d, 0xdd,
+         0x57, 0x62, 0x5d, 0xcc,
+         0x57, 0x62, 0x5d, 0xbb,
+         0x52, 0x28, 0x21, 0xaa,
+         0x57, 0x62, 0x5d, 0xcc,
+         0x57, 0x62, 0x5d, 0xcc,
+         0x57, 0x62, 0x5d, 0x66,
+         0x57, 0x62, 0x5d, 0x22,
+         0x57, 0x62, 0x5d, 0xdd,
+         0x63, 0xd7, 0xd6, 0xee,
+         0x57, 0x62, 0x5d, 0x33,
+         0x63, 0xd7, 0xd6, 0x55,
+         0x52, 0x28, 0x21, 0x55,
+         0x57, 0x62, 0x5d, 0x11,
+         0x5d, 0x9c, 0x99, 0xee
+      },
+      {0xd0, 0xbc, 0xca, 0x6c, 0xd2, 0x3e, 0x55, 0xe1, 0xba, 0x66, 0x44, 0x51, 0xfc, 0xfd, 0xcf, 0xb4}
+   },
+   {
+      {
+         0x94, 0x6f, 0x60, 0x22,
+         0x94, 0x6f, 0x60, 0x22,
+         0xc5, 0xab, 0x76, 0x11,
+         0xc5, 0xab, 0x76, 0xee,
+         0x63, 0x34, 0x4a, 0xdd,
+         0x63, 0x34, 0x4a, 0x33,
+         0x94, 0x6f, 0x60, 0x77,
+         0xf7, 0xe7, 0x8c, 0x00,
+         0x94, 0x6f, 0x60, 0x33,
+         0x63, 0x34, 0x4a, 0xaa,
+         0x94, 0x6f, 0x60, 0x77,
+         0x63, 0x34, 0x4a, 0xcc,
+         0x94, 0x6f, 0x60, 0xaa,
+         0xf7, 0xe7, 0x8c, 0x99,
+         0x63, 0x34, 0x4a, 0x44,
+         0xc5, 0xab, 0x76, 0xaa
+      },
+      {0x22, 0xe1, 0x3d, 0x07, 0xa3, 0xc7, 0x9a, 0xa4, 0x31, 0xf7, 0xa9, 0x61, 0xaf, 0x35, 0x77, 0x93}
+   },
+};
+
+
+static const struct dxt_data 
+dxt5_rgba_data[] = {
+   {
+      {
+         0x6d, 0xc6, 0x96, 0x74,
+         0x6d, 0xc6, 0x96, 0xf8,
+         0x6d, 0xc6, 0x96, 0xb6,
+         0x8c, 0xff, 0xb5, 0x53,
+         0x6d, 0xc6, 0x96, 0xf8,
+         0x6d, 0xc6, 0x96, 0x95,
+         0x31, 0x55, 0x5a, 0x53,
+         0x6d, 0xc6, 0x96, 0x95,
+         0x31, 0x55, 0x5a, 0xb6,
+         0x31, 0x55, 0x5a, 0x53,
+         0x31, 0x55, 0x5a, 0x11,
+         0x6d, 0xc6, 0x96, 0xd7,
+         0x6d, 0xc6, 0x96, 0xb6,
+         0x6d, 0xc6, 0x96, 0x11,
+         0x31, 0x55, 0x5a, 0x32,
+         0x31, 0x55, 0x5a, 0x95
+      },
+      {0xf8, 0x11, 0xc5, 0x0c, 0x9a, 0x73, 0xb4, 0x9c, 0xf6, 0x8f, 0xab, 0x32, 0x2a, 0x9a, 0x95, 0x5a}
+   },
+   {
+      {
+         0xad, 0xeb, 0x73, 0xa1,
+         0x97, 0xaa, 0x86, 0x65,
+         0x6b, 0x28, 0xad, 0xa1,
+         0xad, 0xeb, 0x73, 0xa1,
+         0x6b, 0x28, 0xad, 0x2a,
+         0xad, 0xeb, 0x73, 0xfb,
+         0x97, 0xaa, 0x86, 0x47,
+         0x6b, 0x28, 0xad, 0x65,
+         0x6b, 0x28, 0xad, 0x47,
+         0xad, 0xeb, 0x73, 0x47,
+         0x6b, 0x28, 0xad, 0xdd,
+         0x6b, 0x28, 0xad, 0xa1,
+         0x97, 0xaa, 0x86, 0x65,
+         0xad, 0xeb, 0x73, 0xbf,
+         0x97, 0xaa, 0x86, 0xa1,
+         0xad, 0xeb, 0x73, 0xbf
+      },
+      {0xfb, 0x2a, 0x34, 0x19, 0xdc, 0xbf, 0xe8, 0x71, 0x4e, 0xaf, 0x55, 0x69, 0x18, 0x61, 0x51, 0x22}
+   },
+   {
+      {
+         0x63, 0xd7, 0xd6, 0x00,
+         0x57, 0x62, 0x5d, 0xf5,
+         0x57, 0x62, 0x5d, 0xd2,
+         0x57, 0x62, 0x5d, 0xaf,
+         0x52, 0x28, 0x21, 0xaf,
+         0x57, 0x62, 0x5d, 0xd2,
+         0x57, 0x62, 0x5d, 0xd2,
+         0x57, 0x62, 0x5d, 0x69,
+         0x57, 0x62, 0x5d, 0x23,
+         0x57, 0x62, 0x5d, 0xd2,
+         0x63, 0xd7, 0xd6, 0xf5,
+         0x57, 0x62, 0x5d, 0x46,
+         0x63, 0xd7, 0xd6, 0x46,
+         0x52, 0x28, 0x21, 0x69,
+         0x57, 0x62, 0x5d, 0x23,
+         0x5d, 0x9c, 0x99, 0xf5
+      },
+      {0xf5, 0x00, 0x81, 0x36, 0xa9, 0x17, 0xec, 0x1e, 0xba, 0x66, 0x44, 0x51, 0xfc, 0xfd, 0xcf, 0xb4}
+   },
+   {
+      {
+         0x94, 0x6f, 0x60, 0x25,
+         0x94, 0x6f, 0x60, 0x25,
+         0xc5, 0xab, 0x76, 0x05,
+         0xc5, 0xab, 0x76, 0xe8,
+         0x63, 0x34, 0x4a, 0xe8,
+         0x63, 0x34, 0x4a, 0x25,
+         0x94, 0x6f, 0x60, 0x86,
+         0xf7, 0xe7, 0x8c, 0x05,
+         0x94, 0x6f, 0x60, 0x25,
+         0x63, 0x34, 0x4a, 0xa7,
+         0x94, 0x6f, 0x60, 0x66,
+         0x63, 0x34, 0x4a, 0xc7,
+         0x94, 0x6f, 0x60, 0xa7,
+         0xf7, 0xe7, 0x8c, 0xa7,
+         0x63, 0x34, 0x4a, 0x45,
+         0xc5, 0xab, 0x76, 0xa7
+      },
+      {0xe8, 0x05, 0x7f, 0x80, 0x33, 0x5f, 0xb5, 0x79, 0x31, 0xf7, 0xa9, 0x61, 0xaf, 0x35, 0x77, 0x93}
+   },
+};
+
+
+static INLINE void 
+st_sample_dxt_pixel_block(enum pipe_format format, 
+                          const struct pipe_format_block *block,
+                          uint8_t *raw,
+                          float *rgba, unsigned rgba_stride, 
+                          unsigned w, unsigned h)
+{
+   const struct dxt_data *data;
+   unsigned n;
+   unsigned i;
+   unsigned x, y, ch;
+   
+   switch(format) {
+   case PIPE_FORMAT_DXT1_RGB:
+      data = dxt1_rgb_data;
+      n = sizeof(dxt1_rgb_data)/sizeof(dxt1_rgb_data[0]);
+      break;
+   case PIPE_FORMAT_DXT1_RGBA:
+      data = dxt1_rgba_data;
+      n = sizeof(dxt1_rgba_data)/sizeof(dxt1_rgba_data[0]);
+      break;
+   case PIPE_FORMAT_DXT3_RGBA:
+      data = dxt3_rgba_data;
+      n = sizeof(dxt3_rgba_data)/sizeof(dxt3_rgba_data[0]);
+      break;
+   case PIPE_FORMAT_DXT5_RGBA:
+      data = dxt5_rgba_data;
+      n = sizeof(dxt5_rgba_data)/sizeof(dxt5_rgba_data[0]);
+      break;
+   default:
+      assert(0);
+   }
+   
+   i = st_random() % n;
+   
+   for(y = 0; y < h; ++y)
+      for(x = 0; x < w; ++x)
+         for(ch = 0; ch < 4; ++ch)
+            rgba[y*rgba_stride + x*4 + ch] = (float)(data[i].rgba[y*4*4 + x*4 + ch])/255.0f;
+   
+   memcpy(raw, data[i].raw, block->size);
+}
+
+
+static INLINE void 
+st_sample_generic_pixel_block(enum pipe_format format, 
+                              const struct pipe_format_block *block,
+                              uint8_t *raw,
+                              float *rgba, unsigned rgba_stride,
+                              unsigned w, unsigned h)
+{
+   unsigned i;
+   unsigned x, y, ch;
+   
+   for(i = 0; i < block->size; ++i)
+      raw[i] = (uint8_t)st_random();
+   
+   
+   pipe_tile_raw_to_rgba(format,
+                         raw,
+                         w, h,
+                         rgba, rgba_stride);
+ 
+   if(format == PIPE_FORMAT_YCBCR || format == PIPE_FORMAT_YCBCR_REV) {
+      for(y = 0; y < h; ++y) {
+         for(x = 0; x < w; ++x) {
+            for(ch = 0; ch < 4; ++ch) {
+               unsigned offset = y*rgba_stride + x*4 + ch;
+               rgba[offset] = CLAMP(rgba[offset], 0.0f, 1.0f);
+            }
+         }
+      }
+   }
+}
+
+
+/**
+ * Randomly sample pixels.
+ */
+void 
+st_sample_pixel_block(enum pipe_format format,
+                      const struct pipe_format_block *block,
+                      void *raw,
+                      float *rgba, unsigned rgba_stride,
+                      unsigned w, unsigned h)
+{
+   switch(format) {
+   case PIPE_FORMAT_DXT1_RGB:
+   case PIPE_FORMAT_DXT1_RGBA:
+   case PIPE_FORMAT_DXT3_RGBA:
+   case PIPE_FORMAT_DXT5_RGBA:
+      st_sample_dxt_pixel_block(format, block, raw, rgba, rgba_stride, w, h);
+      break;
+
+   default:
+      st_sample_generic_pixel_block(format, block, raw, rgba, rgba_stride, w, h);
+      break;
+   }
+}
+
+
+void
+st_sample_surface(struct pipe_surface *surface, float *rgba) 
+{
+   const struct pipe_format_block *block = &surface->block;
+   unsigned rgba_stride = surface->width*4;
+   void *raw;
+   unsigned x, y;
+
+   raw = pipe_surface_map(surface, PIPE_BUFFER_USAGE_CPU_READ);
+   if(!raw)
+      return;
+
+   for (y = 0; y < surface->nblocksy; ++y) {
+      for(x = 0; x < surface->nblocksx; ++x) {
+         st_sample_pixel_block(surface->format,
+                               block,
+                               (uint8_t*)raw + y*surface->stride + x*block->size, 
+                               rgba + y*block->height*rgba_stride + x*block->width*4,
+                               rgba_stride,
+                               MIN2(block->width, surface->width - x*block->width), 
+                               MIN2(block->height, surface->height - y*block->height));
+       }
+   }
+   
+   pipe_surface_unmap(surface);
+}
diff --git a/src/gallium/state_trackers/python/st_sample.h b/src/gallium/state_trackers/python/st_sample.h
new file mode 100644
index 0000000000..ff04a12613
--- /dev/null
+++ b/src/gallium/state_trackers/python/st_sample.h
@@ -0,0 +1,47 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+
+#ifndef ST_SAMPLE_H_
+#define ST_SAMPLE_H_
+
+
+#include "pipe/p_format.h"
+
+
+void 
+st_sample_pixel_block(enum pipe_format format,
+                      const struct pipe_format_block *block,
+                      void *raw,
+                      float *rgba, unsigned rgba_stride,
+                      unsigned w, unsigned h);
+
+void
+st_sample_surface(struct pipe_surface *surface, float *rgba);
+
+
+#endif /* ST_SAMPLE_H_ */
diff --git a/src/gallium/state_trackers/python/st_softpipe_winsys.c b/src/gallium/state_trackers/python/st_softpipe_winsys.c
index 964d60de1d..1fda70ca00 100644
--- a/src/gallium/state_trackers/python/st_softpipe_winsys.c
+++ b/src/gallium/state_trackers/python/st_softpipe_winsys.c
@@ -313,7 +313,7 @@ st_softpipe_context_create(struct pipe_screen *screen)
 }
 
 
-const struct st_winsys st_software_winsys = {
+const struct st_winsys st_softpipe_winsys = {
    &st_softpipe_screen_create,
    &st_softpipe_screen_destroy,
    &st_softpipe_context_create,
diff --git a/src/gallium/state_trackers/python/st_winsys.h b/src/gallium/state_trackers/python/st_winsys.h
index 992fc9ab4b..43db8b6bff 100644
--- a/src/gallium/state_trackers/python/st_winsys.h
+++ b/src/gallium/state_trackers/python/st_winsys.h
@@ -50,9 +50,9 @@ struct st_winsys
 };
 
 
-extern const struct st_winsys st_software_winsys;
+extern const struct st_winsys st_softpipe_winsys;
 
-extern const struct st_winsys st_hardware_winsys;
+extern const struct st_winsys st_hardpipe_winsys;
 
 
 #endif /* ST_WINSYS_H_ */
diff --git a/src/gallium/state_trackers/python/tests/base.py b/src/gallium/state_trackers/python/tests/base.py
new file mode 100644
index 0000000000..8477aa5fc9
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/base.py
@@ -0,0 +1,193 @@
+#!/usr/bin/env python
+##########################################################################
+# 
+# Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+# All Rights Reserved.
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sub license, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+# 
+# The above copyright notice and this permission notice (including the
+# next paragraph) shall be included in all copies or substantial portions
+# of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+# IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+# ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+# 
+##########################################################################
+
+
+"""Base classes for tests.
+
+Loosely inspired on Python's unittest module.
+"""
+
+
+from gallium import *
+
+
+# Enumerate all pixel formats
+formats = {}
+for name, value in globals().items():
+    if name.startswith("PIPE_FORMAT_") and isinstance(value, int):
+        formats[value] = name
+
+
+def make_image(width, height, rgba):
+    import Image
+    outimage = Image.new(
+        mode='RGB',
+        size=(width, height),
+        color=(0,0,0))
+    outpixels = outimage.load()
+    for y in range(0, height):
+        for x in range(0, width):
+            offset = (y*width + x)*4
+            r, g, b, a = [int(min(max(rgba[offset + ch], 0.0), 1.0)*255) for ch in range(4)]
+            outpixels[x, y] = r, g, b
+    return outimage
+
+def save_image(width, height, rgba, filename):
+    outimage = make_image(width, height, rgba)
+    outimage.save(filename, "PNG")
+
+def show_image(width, height, **rgbas):
+    import Tkinter as tk
+    from PIL import Image, ImageTk
+
+    root = tk.Tk()
+    
+    x = 64
+    y = 64
+    
+    labels = rgbas.keys()
+    labels.sort() 
+    for i in range(len(labels)):
+        label = labels[i]
+        outimage = make_image(width, height, rgbas[label])
+        
+        if i:
+            window = tk.Toplevel(root)
+        else:
+            window = root    
+        window.title(label)
+        image1 = ImageTk.PhotoImage(outimage)
+        w = image1.width()
+        h = image1.height()
+        window.geometry("%dx%d+%d+%d" % (w, h, x, y))
+        panel1 = tk.Label(window, image=image1)
+        panel1.pack(side='top', fill='both', expand='yes')
+        panel1.image = image1
+        x += w + 2
+    
+    root.mainloop()
+
+
+class TestFailure(Exception):
+
+    pass
+
+class TestSkip(Exception):
+    
+    pass
+
+
+class Test:
+
+    def __init__(self):
+        pass
+
+    def _run(self, result):
+        raise NotImplementedError
+    
+    def run(self):
+        result = TestResult()
+        self._run(result)
+        result.summary()
+
+
+class TestCase(Test):
+    
+    def __init__(self, dev, **kargs):
+        Test.__init__(self)
+        self.dev = dev
+        self.__dict__.update(kargs)
+
+    def description(self):
+        raise NotImplementedError
+        
+    def test(self):
+        raise NotImplementedError
+    
+    def _run(self, result):
+        result.test_start(self)
+        try:
+            self.test()
+        except KeyboardInterrupt:
+            raise
+        except TestSkip:
+            result.test_skipped(self)
+        except TestFailure:
+            result.test_failed(self)
+        else:
+            result.test_passed(self)
+
+
+class TestSuite(Test):
+    
+    def __init__(self, tests = None):
+        Test.__init__(self)
+        if tests is None:
+            self.tests = []
+        else:
+            self.tests = tests
+
+    def add_test(self, test):
+        self.tests.append(test) 
+    
+    def _run(self, result):
+        for test in self.tests:
+            test._run(result)
+
+
+class TestResult:
+    
+    def __init__(self):
+        self.tests = 0
+        self.passed = 0
+        self.skipped = 0
+        self.failed = 0
+        self.failed_descriptions = []
+    
+    def test_start(self, test):
+        self.tests += 1
+        print "Running %s..." % test.description()
+    
+    def test_passed(self, test):
+        self.passed += 1
+        print "PASS"
+            
+    def test_skipped(self, test):
+        self.skipped += 1
+        print "SKIP"
+        
+    def test_failed(self, test):
+        self.failed += 1
+        self.failed_descriptions.append(test.description())
+        print "FAIL"
+
+    def summary(self):
+        print "%u tests, %u passed, %u skipped, %u failed" % (self.tests, self.passed, self.skipped, self.failed)
+        for description in self.failed_descriptions:
+            print "  %s" % description
+ 
\ No newline at end of file
diff --git a/src/gallium/state_trackers/python/tests/texture.py b/src/gallium/state_trackers/python/tests/texture.py
new file mode 100644
index 0000000000..880a61306c
--- /dev/null
+++ b/src/gallium/state_trackers/python/tests/texture.py
@@ -0,0 +1,397 @@
+#!/usr/bin/env python
+##########################################################################
+# 
+# Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+# All Rights Reserved.
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sub license, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+# 
+# The above copyright notice and this permission notice (including the
+# next paragraph) shall be included in all copies or substantial portions
+# of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+# IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+# ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+# 
+##########################################################################
+
+
+import sys
+from gallium import *
+from base import *
+
+
+def lods(*dims):
+    size = max(dims)
+    lods = 0
+    while size:
+        lods += 1
+        size >>= 1
+    return lods
+
+
+def minify(dims, level = 1):
+    return [max(dim>>level, 1) for dim in dims]
+
+
+def tex_coords(texture, face, level, zslice):
+    st = [ 
+        [0.0, 0.0], 
+        [1.0, 0.0], 
+        [1.0, 1.0], 
+        [0.0, 1.0],
+    ] 
+    
+    if texture.target == PIPE_TEXTURE_2D:
+        return [[s, t, 0.0] for s, t in st]
+    elif texture.target == PIPE_TEXTURE_3D:
+        depth = texture.get_depth(level)
+        if depth > 1:
+            r = float(zslice)/float(depth - 1)
+        else:
+            r = 0.0
+        return [[s, t, r] for s, t in st]
+    elif texture.target == PIPE_TEXTURE_CUBE:
+        result = []
+        for s, t in st:
+            # See http://developer.nvidia.com/object/cube_map_ogl_tutorial.html
+            sc = 2.0*s - 1.0
+            tc = 2.0*t - 1.0
+            if face == PIPE_TEX_FACE_POS_X:
+                rx = 1.0
+                ry = -tc
+                rz = -sc
+            if face == PIPE_TEX_FACE_NEG_X:
+                rx = -1.0
+                ry = -tc
+                rz = sc
+            if face == PIPE_TEX_FACE_POS_Y:
+                rx = sc
+                ry = 1.0
+                rz = tc
+            if face == PIPE_TEX_FACE_NEG_Y:
+                rx = sc
+                ry = -1.0
+                rz = -tc
+            if face == PIPE_TEX_FACE_POS_Z:
+                rx = sc
+                ry = -tc
+                rz = 1.0
+            if face == PIPE_TEX_FACE_NEG_Z:
+                rx = -sc
+                ry = -tc
+                rz = -1.0
+            result.append([rx, ry, rz])
+        return result
+
+def is_pot(n):
+    return n & (n - 1) == 0
+      
+                
+class TextureTest(TestCase):
+    
+    def description(self):
+        target = {
+            PIPE_TEXTURE_1D: "1d", 
+            PIPE_TEXTURE_2D: "2d", 
+            PIPE_TEXTURE_3D: "3d", 
+            PIPE_TEXTURE_CUBE: "cube",
+        }[self.target]
+        format = formats[self.format]
+        if self.target == PIPE_TEXTURE_CUBE:
+            face = {
+                PIPE_TEX_FACE_POS_X: "+x",
+                PIPE_TEX_FACE_NEG_X: "-x",
+                PIPE_TEX_FACE_POS_Y: "+y",
+                PIPE_TEX_FACE_NEG_Y: "-y", 
+                PIPE_TEX_FACE_POS_Z: "+z", 
+                PIPE_TEX_FACE_NEG_Z: "-z",
+            }[self.face]
+        else:
+            face = ""
+        return "%s %s %ux%ux%u last_level=%u face=%s level=%u zslice=%u" % (
+            target, format, 
+            self.width, self.height, self.depth, self.last_level, 
+            face, self.level, self.zslice, 
+        )
+    
+    def test(self):
+        dev = self.dev
+        
+        target = self.target
+        format = self.format
+        width = self.width
+        height = self.height
+        depth = self.depth
+        last_level = self.last_level
+        face = self.face
+        level = self.level
+        zslice = self.zslice
+        
+        tex_usage = PIPE_TEXTURE_USAGE_SAMPLER
+        geom_flags = 0
+        if width != height:
+            geom_flags |= PIPE_TEXTURE_GEOM_NON_SQUARE
+        if not is_pot(width) or not is_pot(height) or not is_pot(depth):
+            geom_flags |= PIPE_TEXTURE_GEOM_NON_POWER_OF_TWO
+        
+        if not dev.is_format_supported(format, target, tex_usage, geom_flags):
+            raise TestSkip
+        
+        ctx = self.dev.context_create()
+    
+        # disabled blending/masking
+        blend = Blend()
+        blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE
+        blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE
+        blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO
+        blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO
+        blend.colormask = PIPE_MASK_RGBA
+        ctx.set_blend(blend)
+    
+        # no-op depth/stencil/alpha
+        depth_stencil_alpha = DepthStencilAlpha()
+        ctx.set_depth_stencil_alpha(depth_stencil_alpha)
+    
+        # rasterizer
+        rasterizer = Rasterizer()
+        rasterizer.front_winding = PIPE_WINDING_CW
+        rasterizer.cull_mode = PIPE_WINDING_NONE
+        rasterizer.bypass_clipping = 1
+        #rasterizer.bypass_vs = 1
+        ctx.set_rasterizer(rasterizer)
+    
+        # viewport (identity, we setup vertices in wincoords)
+        viewport = Viewport()
+        scale = FloatArray(4)
+        scale[0] = 1.0
+        scale[1] = 1.0
+        scale[2] = 1.0
+        scale[3] = 1.0
+        viewport.scale = scale
+        translate = FloatArray(4)
+        translate[0] = 0.0
+        translate[1] = 0.0
+        translate[2] = 0.0
+        translate[3] = 0.0
+        viewport.translate = translate
+        ctx.set_viewport(viewport)
+    
+        # samplers
+        sampler = Sampler()
+        sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE
+        sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE
+        sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE
+        sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST
+        sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST
+        sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST
+        sampler.normalized_coords = 1
+        sampler.min_lod = 0
+        sampler.max_lod = PIPE_MAX_TEXTURE_LEVELS - 1
+        ctx.set_sampler(0, sampler)
+    
+        #  texture 
+        texture = dev.texture_create(
+            target = target,
+            format = format, 
+            width = width, 
+            height = height,
+            depth = depth, 
+            last_level = last_level,
+            tex_usage = tex_usage,
+        )
+        
+        expected_rgba = FloatArray(height*width*4) 
+        texture.get_surface(
+            usage = PIPE_BUFFER_USAGE_CPU_READ|PIPE_BUFFER_USAGE_CPU_WRITE,
+            face = face,
+            level = level,
+            zslice = zslice,
+        ).sample_rgba(expected_rgba)
+        
+        ctx.set_sampler_texture(0, texture)
+
+        #  framebuffer 
+        cbuf_tex = dev.texture_create(
+            PIPE_FORMAT_A8R8G8B8_UNORM, 
+            width, 
+            height,
+            tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET,
+        )
+
+        cbuf = cbuf_tex.get_surface(usage = PIPE_BUFFER_USAGE_GPU_WRITE|PIPE_BUFFER_USAGE_GPU_READ)
+        fb = Framebuffer()
+        fb.width = width
+        fb.height = height
+        fb.num_cbufs = 1
+        fb.set_cbuf(0, cbuf)
+        ctx.set_framebuffer(fb)
+        ctx.surface_clear(cbuf, 0x00000000)
+        del fb
+    
+        # vertex shader
+        vs = Shader('''
+            VERT1.1
+            DCL IN[0], POSITION, CONSTANT
+            DCL IN[1], GENERIC, CONSTANT
+            DCL OUT[0], POSITION, CONSTANT
+            DCL OUT[1], GENERIC, CONSTANT
+            0:MOV OUT[0], IN[0]
+            1:MOV OUT[1], IN[1]
+            2:END
+        ''')
+        #vs.dump()
+        ctx.set_vertex_shader(vs)
+    
+        # fragment shader
+        op = {
+            PIPE_TEXTURE_1D: "1D", 
+            PIPE_TEXTURE_2D: "2D", 
+            PIPE_TEXTURE_3D: "3D", 
+            PIPE_TEXTURE_CUBE: "CUBE",
+        }[target]
+        fs = Shader('''
+            FRAG1.1
+            DCL IN[0], GENERIC[0], LINEAR
+            DCL OUT[0], COLOR, CONSTANT
+            DCL SAMP[0], CONSTANT
+            0:TEX OUT[0], IN[0], SAMP[0], %s
+            1:END
+        ''' % op)
+        #fs.dump()
+        ctx.set_fragment_shader(fs)
+
+        nverts = 4
+        nattrs = 2
+        verts = FloatArray(nverts * nattrs * 4)
+    
+        x = 0
+        y = 0
+        w, h = minify((width, height), level)
+    
+        pos = [
+            [x, y],
+            [x+w, y],
+            [x+w, y+h],
+            [x, y+h],
+        ]
+    
+        tex = tex_coords(texture, face, level, zslice)
+    
+        for i in range(0, 4):
+            j = 8*i
+            verts[j + 0] = pos[i][0] # x
+            verts[j + 1] = pos[i][1] # y
+            verts[j + 2] = 0.0 # z
+            verts[j + 3] = 1.0 # w
+            verts[j + 4] = tex[i][0] # s
+            verts[j + 5] = tex[i][1] # r
+            verts[j + 6] = tex[i][2] # q
+            verts[j + 7] = 1.0
+    
+        ctx.draw_vertices(PIPE_PRIM_TRIANGLE_FAN,
+                          nverts, 
+                          nattrs, 
+                          verts)
+    
+        ctx.flush()
+    
+        cbuf = cbuf_tex.get_surface(usage = PIPE_BUFFER_USAGE_CPU_READ)
+        
+        total = h*w
+        different = cbuf.compare_tile_rgba(x, y, w, h, expected_rgba, tol=4.0/256)
+        if different:
+            sys.stderr.write("%u out of %u pixels differ\n" % (different, total))
+
+        if float(total - different)/float(total) < 0.85:
+        
+            if 0:
+                rgba = FloatArray(h*w*4)
+                cbuf.get_tile_rgba(x, y, w, h, rgba)
+                show_image(w, h, Result=rgba, Expected=expected_rgba)
+                save_image(w, h, rgba, "result.png")
+                save_image(w, h, expected_rgba, "expected.png")
+            #sys.exit(0)
+            
+            raise TestFailure
+
+        del ctx
+        
+
+
+def main():
+    dev = Device()
+    suite = TestSuite()
+    
+    targets = []
+    targets += [PIPE_TEXTURE_2D]
+    targets += [PIPE_TEXTURE_CUBE]
+    targets += [PIPE_TEXTURE_3D]
+    
+    formats = []
+    formats += [PIPE_FORMAT_A8R8G8B8_UNORM]
+    formats += [PIPE_FORMAT_R5G6B5_UNORM]
+    formats += [PIPE_FORMAT_L8_UNORM]
+    formats += [PIPE_FORMAT_YCBCR]
+    formats += [PIPE_FORMAT_DXT1_RGB]
+    
+    sizes = [64, 32, 16, 8, 4, 2, 1]
+    #sizes = [1020, 508, 252, 62, 30, 14, 6, 3]
+    #sizes = [64]
+    #sizes = [63]
+    
+    for target in targets:
+        for format in formats:
+            for size in sizes:
+                if target == PIPE_TEXTURE_CUBE:
+                    faces = [
+                        PIPE_TEX_FACE_POS_X,
+                        PIPE_TEX_FACE_NEG_X,
+                        PIPE_TEX_FACE_POS_Y,
+                        PIPE_TEX_FACE_NEG_Y, 
+                        PIPE_TEX_FACE_POS_Z, 
+                        PIPE_TEX_FACE_NEG_Z,
+                    ]
+                    #faces = [PIPE_TEX_FACE_NEG_X]
+                else:
+                    faces = [0]
+                if target == PIPE_TEXTURE_3D:
+                    depth = size
+                else:
+                    depth = 1
+                for face in faces:
+                    levels = lods(size)
+                    for last_level in range(levels):
+                        for level in range(0, last_level + 1):
+                            zslice = 0
+                            while zslice < depth >> level:
+                                test = TextureTest(
+                                    dev = dev,
+                                    target = target,
+                                    format = format, 
+                                    width = size,
+                                    height = size,
+                                    depth = depth,
+                                    last_level = last_level,
+                                    face = face,
+                                    level = level,
+                                    zslice = zslice,
+                                )
+                                suite.add_test(test)
+                                zslice = (zslice + 1)*2 - 1
+    suite.run()
+
+
+if __name__ == '__main__':
+    main()
diff --git a/src/glu/sgi/Makefile b/src/glu/sgi/Makefile
index 2ce6ac0430..cdd267a025 100644
--- a/src/glu/sgi/Makefile
+++ b/src/glu/sgi/Makefile
@@ -139,6 +139,7 @@ $(TOP)/$(LIB_DIR)/$(GLU_LIB_NAME): $(OBJECTS)
 	$(TOP)/bin/mklib -o $(GLU_LIB) -linker '$(CXX)' \
 		-major $(GLU_MAJOR) -minor $(GLU_MINOR) -patch $(GLU_TINY) \
 		-cplusplus $(MKLIB_OPTIONS) -install $(TOP)/$(LIB_DIR) \
+		-exports glu.exports \
 		$(GLU_LIB_DEPS) $(OBJECTS)
 
 
diff --git a/src/glu/sgi/glu.exports b/src/glu/sgi/glu.exports
new file mode 100644
index 0000000000..1d1b6da24f
--- /dev/null
+++ b/src/glu/sgi/glu.exports
@@ -0,0 +1,59 @@
+	gluBeginCurve
+	gluBeginPolygon
+	gluBeginSurface
+	gluBeginTrim
+	gluBuild1DMipmapLevels
+	gluBuild1DMipmaps
+	gluBuild2DMipmapLevels
+	gluBuild2DMipmaps
+	gluBuild3DMipmapLevels
+	gluBuild3DMipmaps
+	gluCheckExtension
+	gluCylinder
+	gluDeleteNurbsRenderer
+	gluDeleteQuadric
+	gluDeleteTess
+	gluDisk
+	gluEndCurve
+	gluEndPolygon
+	gluEndSurface
+	gluEndTrim
+	gluErrorString
+	gluGetNurbsProperty
+	gluGetString
+	gluGetTessProperty
+	gluLoadSamplingMatrices
+	gluLookAt
+	gluNewNurbsRenderer
+	gluNewQuadric
+	gluNewTess
+	gluNextContour
+	gluNurbsCallback
+	gluNurbsCallbackData
+	gluNurbsCallbackDataEXT
+	gluNurbsCurve
+	gluNurbsProperty
+	gluNurbsSurface
+	gluOrtho2D
+	gluPartialDisk
+	gluPerspective
+	gluPickMatrix
+	gluProject
+	gluPwlCurve
+	gluQuadricCallback
+	gluQuadricDrawStyle
+	gluQuadricNormals
+	gluQuadricOrientation
+	gluQuadricTexture
+	gluScaleImage
+	gluSphere
+	gluTessBeginContour
+	gluTessBeginPolygon
+	gluTessCallback
+	gluTessEndContour
+	gluTessEndPolygon
+	gluTessNormal
+	gluTessProperty
+	gluTessVertex
+	gluUnProject
+	gluUnProject4
diff --git a/src/mesa/main/config.h b/src/mesa/main/config.h
index 9ff0b708dd..f8109ec755 100644
--- a/src/mesa/main/config.h
+++ b/src/mesa/main/config.h
@@ -190,8 +190,8 @@
 #define MAX_PROGRAM_CALL_DEPTH 8
 #define MAX_PROGRAM_TEMPS 128
 #define MAX_PROGRAM_ADDRESS_REGS 2
-#define MAX_UNIFORMS 128
-#define MAX_VARYING 8
+#define MAX_UNIFORMS 128   /**< number of float components */
+#define MAX_VARYING 8      /**< number of float[4] vectors */
 #define MAX_SAMPLERS 8
 /*@}*/
 
diff --git a/src/mesa/main/execmem.c b/src/mesa/main/execmem.c
index aa40b02205..0fe85af93e 100644
--- a/src/mesa/main/execmem.c
+++ b/src/mesa/main/execmem.c
@@ -36,7 +36,7 @@
 
 
 
-#if defined(__linux__) || defined(__OpenBSD__)
+#if defined(__linux__) || defined(__OpenBSD__) || defined(_NetBSD__)
 
 /*
  * Allocate a large block of memory which can hold code then dole it out
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index ac437a86e2..4674c44a3f 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -749,6 +749,15 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
       case GL_POLYGON_OFFSET_UNITS:
          params[0] = FLOAT_TO_BOOLEAN(ctx->Polygon.OffsetUnits );
          break;
+      case GL_POLYGON_OFFSET_POINT:
+         params[0] = ctx->Polygon.OffsetPoint;
+         break;
+      case GL_POLYGON_OFFSET_LINE:
+         params[0] = ctx->Polygon.OffsetLine;
+         break;
+      case GL_POLYGON_OFFSET_FILL:
+         params[0] = ctx->Polygon.OffsetFill;
+         break;
       case GL_POLYGON_SMOOTH:
          params[0] = ctx->Polygon.SmoothFlag;
          break;
@@ -891,18 +900,6 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
          CHECK_EXT1(MESA_texture_array, "GetBooleanv");
          params[0] = INT_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2DArray->Name);
          break;
-      case GL_TEXTURE_ENV_COLOR:
-         {
-         const GLfloat *color = ctx->Texture.Unit[ctx->Texture.CurrentUnit].EnvColor;
-         params[0] = FLOAT_TO_BOOLEAN(color[0]);
-         params[1] = FLOAT_TO_BOOLEAN(color[1]);
-         params[2] = FLOAT_TO_BOOLEAN(color[2]);
-         params[3] = FLOAT_TO_BOOLEAN(color[3]);
-         }
-         break;
-      case GL_TEXTURE_ENV_MODE:
-         params[0] = ENUM_TO_BOOLEAN(ctx->Texture.Unit[ctx->Texture.CurrentUnit].EnvMode);
-         break;
       case GL_TEXTURE_GEN_S:
          params[0] = ((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & S_BIT) ? 1 : 0);
          break;
@@ -2596,6 +2593,15 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
       case GL_POLYGON_OFFSET_UNITS:
          params[0] = ctx->Polygon.OffsetUnits ;
          break;
+      case GL_POLYGON_OFFSET_POINT:
+         params[0] = BOOLEAN_TO_FLOAT(ctx->Polygon.OffsetPoint);
+         break;
+      case GL_POLYGON_OFFSET_LINE:
+         params[0] = BOOLEAN_TO_FLOAT(ctx->Polygon.OffsetLine);
+         break;
+      case GL_POLYGON_OFFSET_FILL:
+         params[0] = BOOLEAN_TO_FLOAT(ctx->Polygon.OffsetFill);
+         break;
       case GL_POLYGON_SMOOTH:
          params[0] = BOOLEAN_TO_FLOAT(ctx->Polygon.SmoothFlag);
          break;
@@ -2738,18 +2744,6 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
          CHECK_EXT1(MESA_texture_array, "GetFloatv");
          params[0] = (GLfloat)(ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2DArray->Name);
          break;
-      case GL_TEXTURE_ENV_COLOR:
-         {
-         const GLfloat *color = ctx->Texture.Unit[ctx->Texture.CurrentUnit].EnvColor;
-         params[0] = color[0];
-         params[1] = color[1];
-         params[2] = color[2];
-         params[3] = color[3];
-         }
-         break;
-      case GL_TEXTURE_ENV_MODE:
-         params[0] = ENUM_TO_FLOAT(ctx->Texture.Unit[ctx->Texture.CurrentUnit].EnvMode);
-         break;
       case GL_TEXTURE_GEN_S:
          params[0] = BOOLEAN_TO_FLOAT(((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & S_BIT) ? 1 : 0));
          break;
@@ -4443,6 +4437,15 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
       case GL_POLYGON_OFFSET_UNITS:
          params[0] = IROUND(ctx->Polygon.OffsetUnits );
          break;
+      case GL_POLYGON_OFFSET_POINT:
+         params[0] = BOOLEAN_TO_INT(ctx->Polygon.OffsetPoint);
+         break;
+      case GL_POLYGON_OFFSET_LINE:
+         params[0] = BOOLEAN_TO_INT(ctx->Polygon.OffsetLine);
+         break;
+      case GL_POLYGON_OFFSET_FILL:
+         params[0] = BOOLEAN_TO_INT(ctx->Polygon.OffsetFill);
+         break;
       case GL_POLYGON_SMOOTH:
          params[0] = BOOLEAN_TO_INT(ctx->Polygon.SmoothFlag);
          break;
@@ -4585,18 +4588,6 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
          CHECK_EXT1(MESA_texture_array, "GetIntegerv");
          params[0] = ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2DArray->Name;
          break;
-      case GL_TEXTURE_ENV_COLOR:
-         {
-         const GLfloat *color = ctx->Texture.Unit[ctx->Texture.CurrentUnit].EnvColor;
-         params[0] = FLOAT_TO_INT(color[0]);
-         params[1] = FLOAT_TO_INT(color[1]);
-         params[2] = FLOAT_TO_INT(color[2]);
-         params[3] = FLOAT_TO_INT(color[3]);
-         }
-         break;
-      case GL_TEXTURE_ENV_MODE:
-         params[0] = ENUM_TO_INT(ctx->Texture.Unit[ctx->Texture.CurrentUnit].EnvMode);
-         break;
       case GL_TEXTURE_GEN_S:
          params[0] = BOOLEAN_TO_INT(((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & S_BIT) ? 1 : 0));
          break;
diff --git a/src/mesa/main/get_gen.py b/src/mesa/main/get_gen.py
index c307058da6..653deefa72 100644
--- a/src/mesa/main/get_gen.py
+++ b/src/mesa/main/get_gen.py
@@ -372,6 +372,9 @@ StateVars = [
 	( "GL_POLYGON_OFFSET_BIAS_EXT", GLfloat, ["ctx->Polygon.OffsetUnits"], "", None ),
 	( "GL_POLYGON_OFFSET_FACTOR", GLfloat, ["ctx->Polygon.OffsetFactor "], "", None ),
 	( "GL_POLYGON_OFFSET_UNITS", GLfloat, ["ctx->Polygon.OffsetUnits "], "", None ),
+	( "GL_POLYGON_OFFSET_POINT", GLboolean, ["ctx->Polygon.OffsetPoint"], "", None ),
+	( "GL_POLYGON_OFFSET_LINE", GLboolean, ["ctx->Polygon.OffsetLine"], "", None ),
+	( "GL_POLYGON_OFFSET_FILL", GLboolean, ["ctx->Polygon.OffsetFill"], "", None ),
 	( "GL_POLYGON_SMOOTH", GLboolean, ["ctx->Polygon.SmoothFlag"], "", None ),
 	( "GL_POLYGON_SMOOTH_HINT", GLenum, ["ctx->Hint.PolygonSmooth"], "", None ),
 	( "GL_POLYGON_STIPPLE", GLboolean, ["ctx->Polygon.StippleFlag"], "", None ),
@@ -437,12 +440,6 @@ StateVars = [
 	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current1DArray->Name"], "", ["MESA_texture_array"] ),
 	( "GL_TEXTURE_BINDING_2D_ARRAY_EXT", GLint,
 	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].Current2DArray->Name"], "", ["MESA_texture_array"] ),
-	( "GL_TEXTURE_ENV_COLOR", GLfloatN,
-	  ["color[0]", "color[1]", "color[2]", "color[3]"],
-	  "const GLfloat *color = ctx->Texture.Unit[ctx->Texture.CurrentUnit].EnvColor;",
-	  None ),
-	( "GL_TEXTURE_ENV_MODE", GLenum,
-	  ["ctx->Texture.Unit[ctx->Texture.CurrentUnit].EnvMode"], "", None ),
 	( "GL_TEXTURE_GEN_S", GLboolean,
 	  ["((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & S_BIT) ? 1 : 0)"], "", None ),
 	( "GL_TEXTURE_GEN_T", GLboolean,
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 2d6be1983c..88312da7f0 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2519,7 +2519,7 @@ struct gl_constants
    GLuint MaxRenderbufferSize;
    /* GL_ARB_vertex_shader */
    GLuint MaxVertexTextureImageUnits;
-   GLuint MaxVarying;
+   GLuint MaxVarying;  /**< Number of float[4] vectors */
 };
 
 
diff --git a/src/mesa/main/stencil.c b/src/mesa/main/stencil.c
index c1906197de..2a4c38b1f2 100644
--- a/src/mesa/main/stencil.c
+++ b/src/mesa/main/stencil.c
@@ -207,7 +207,23 @@ _mesa_StencilFunc( GLenum func, GLint ref, GLuint mask )
 
    ref = CLAMP( ref, 0, stencilMax );
 
-   if (ctx->Extensions.ATI_separate_stencil) {
+   if (ctx->Extensions.EXT_stencil_two_side) {
+      /* only set active face state */
+      const GLint face = ctx->Stencil.ActiveFace;
+      if (ctx->Stencil.Function[face] == func &&
+          ctx->Stencil.ValueMask[face] == mask &&
+          ctx->Stencil.Ref[face] == ref)
+         return;
+      FLUSH_VERTICES(ctx, _NEW_STENCIL);
+      ctx->Stencil.Function[face] = func;
+      ctx->Stencil.Ref[face] = ref;
+      ctx->Stencil.ValueMask[face] = mask;
+      if (ctx->Driver.StencilFuncSeparate) {
+         ctx->Driver.StencilFuncSeparate(ctx, face ? GL_BACK : GL_FRONT,
+                                         func, ref, mask);
+      }
+   }
+   else {
       /* set both front and back state */
       if (ctx->Stencil.Function[0] == func &&
           ctx->Stencil.Function[1] == func &&
@@ -225,22 +241,6 @@ _mesa_StencilFunc( GLenum func, GLint ref, GLuint mask )
                                          func, ref, mask);
       }
    }
-   else {
-      /* only set active face state */
-      const GLint face = ctx->Stencil.ActiveFace;
-      if (ctx->Stencil.Function[face] == func &&
-          ctx->Stencil.ValueMask[face] == mask &&
-          ctx->Stencil.Ref[face] == ref)
-         return;
-      FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.Function[face] = func;
-      ctx->Stencil.Ref[face] = ref;
-      ctx->Stencil.ValueMask[face] = mask;
-      if (ctx->Driver.StencilFuncSeparate) {
-         ctx->Driver.StencilFuncSeparate(ctx, face ? GL_BACK : GL_FRONT,
-                                         func, ref, mask);
-      }
-   }
 }
 
 
@@ -261,26 +261,26 @@ _mesa_StencilMask( GLuint mask )
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   if (ctx->Extensions.ATI_separate_stencil) {
-      /* set both front and back state */
-      if (ctx->Stencil.WriteMask[0] == mask &&
-          ctx->Stencil.WriteMask[1] == mask)
+   if (ctx->Extensions.EXT_stencil_two_side) {
+      /* only set active face state */
+      const GLint face = ctx->Stencil.ActiveFace;
+      if (ctx->Stencil.WriteMask[face] == mask)
          return;
       FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.WriteMask[0] = ctx->Stencil.WriteMask[1] = mask;
+      ctx->Stencil.WriteMask[face] = mask;
       if (ctx->Driver.StencilMaskSeparate) {
-         ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT_AND_BACK, mask);
+         ctx->Driver.StencilMaskSeparate(ctx, face ? GL_BACK : GL_FRONT, mask);
       }
    }
    else {
-      /* only set active face state */
-      const GLint face = ctx->Stencil.ActiveFace;
-      if (ctx->Stencil.WriteMask[face] == mask)
+      /* set both front and back state */
+      if (ctx->Stencil.WriteMask[0] == mask &&
+          ctx->Stencil.WriteMask[1] == mask)
          return;
       FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.WriteMask[face] = mask;
+      ctx->Stencil.WriteMask[0] = ctx->Stencil.WriteMask[1] = mask;
       if (ctx->Driver.StencilMaskSeparate) {
-         ctx->Driver.StencilMaskSeparate(ctx, face ? GL_BACK : GL_FRONT, mask);
+         ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT_AND_BACK, mask);
       }
    }
 }
@@ -319,7 +319,23 @@ _mesa_StencilOp(GLenum fail, GLenum zfail, GLenum zpass)
       return;
    }
 
-   if (ctx->Extensions.ATI_separate_stencil) {
+   if (ctx->Extensions.EXT_stencil_two_side) {
+      /* only set active face state */
+      const GLint face = ctx->Stencil.ActiveFace;
+      if (ctx->Stencil.ZFailFunc[face] == zfail &&
+          ctx->Stencil.ZPassFunc[face] == zpass &&
+          ctx->Stencil.FailFunc[face] == fail)
+         return;
+      FLUSH_VERTICES(ctx, _NEW_STENCIL);
+      ctx->Stencil.ZFailFunc[face] = zfail;
+      ctx->Stencil.ZPassFunc[face] = zpass;
+      ctx->Stencil.FailFunc[face] = fail;
+      if (ctx->Driver.StencilOpSeparate) {
+         ctx->Driver.StencilOpSeparate(ctx, face ? GL_BACK : GL_FRONT,
+                                       fail, zfail, zpass);
+      }
+   }
+   else {
       /* set both front and back state */
       if (ctx->Stencil.ZFailFunc[0] == zfail &&
           ctx->Stencil.ZFailFunc[1] == zfail &&
@@ -337,22 +353,6 @@ _mesa_StencilOp(GLenum fail, GLenum zfail, GLenum zpass)
                                        fail, zfail, zpass);
       }
    }
-   else {
-      /* only set active face state */
-      const GLint face = ctx->Stencil.ActiveFace;
-      if (ctx->Stencil.ZFailFunc[face] == zfail &&
-          ctx->Stencil.ZPassFunc[face] == zpass &&
-          ctx->Stencil.FailFunc[face] == fail)
-         return;
-      FLUSH_VERTICES(ctx, _NEW_STENCIL);
-      ctx->Stencil.ZFailFunc[face] = zfail;
-      ctx->Stencil.ZPassFunc[face] = zpass;
-      ctx->Stencil.FailFunc[face] = fail;
-      if (ctx->Driver.StencilOpSeparate) {
-         ctx->Driver.StencilOpSeparate(ctx, face ? GL_BACK : GL_FRONT,
-                                       fail, zfail, zpass);
-      }
-   }
 }
 
 
@@ -463,12 +463,14 @@ _mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
 
    FLUSH_VERTICES(ctx, _NEW_STENCIL);
 
-   if (face == GL_FRONT || face == GL_FRONT_AND_BACK) {
+   if (face != GL_BACK) {
+      /* set front */
       ctx->Stencil.Function[0] = func;
       ctx->Stencil.Ref[0] = ref;
       ctx->Stencil.ValueMask[0] = mask;
    }
-   if (face == GL_BACK || face == GL_FRONT_AND_BACK) {
+   if (face != GL_FRONT) {
+      /* set back */
       ctx->Stencil.Function[1] = func;
       ctx->Stencil.Ref[1] = ref;
       ctx->Stencil.ValueMask[1] = mask;
diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c
index 11e7755960..60f36c4a87 100644
--- a/src/mesa/main/texformat.c
+++ b/src/mesa/main/texformat.c
@@ -55,10 +55,10 @@ nonlinear_to_linear(GLubyte cs8)
       for (i = 0; i < 256; i++) {
          const GLfloat cs = UBYTE_TO_FLOAT(i);
          if (cs <= 0.04045) {
-            table[i] = cs / 12.92;
+            table[i] = cs / 12.92f;
          }
          else {
-            table[i] = _mesa_pow((cs + 0.055) / 1.055, 2.4);
+            table[i] = (GLfloat) _mesa_pow((cs + 0.055) / 1.055, 2.4);
          }
       }
       tableReady = GL_TRUE;
diff --git a/src/mesa/main/texrender.c b/src/mesa/main/texrender.c
index 8d5468aff0..163bda4501 100644
--- a/src/mesa/main/texrender.c
+++ b/src/mesa/main/texrender.c
@@ -159,7 +159,7 @@ texture_put_row(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
       const GLuint *zValues = (const GLuint *) values;
       for (i = 0; i < count; i++) {
          if (!mask || mask[i]) {
-            GLfloat flt = (zValues[i] >> 8) * (1.0 / 0xffffff);
+            GLfloat flt = (GLfloat) ((zValues[i] >> 8) * (1.0 / 0xffffff));
             trb->Store(trb->TexImage, x + i, y, z, &flt);
          }
       }
@@ -199,7 +199,7 @@ texture_put_mono_row(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
    }
    else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
       const GLuint zValue = *((const GLuint *) value);
-      const GLfloat flt = (zValue >> 8) * (1.0 / 0xffffff);
+      const GLfloat flt = (GLfloat) ((zValue >> 8) * (1.0 / 0xffffff));
       for (i = 0; i < count; i++) {
          if (!mask || mask[i]) {
             trb->Store(trb->TexImage, x + i, y, z, &flt);
@@ -244,7 +244,7 @@ texture_put_values(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
       const GLuint *zValues = (const GLuint *) values;
       for (i = 0; i < count; i++) {
          if (!mask || mask[i]) {
-            GLfloat flt = (zValues[i] >> 8) * (1.0 / 0xffffff);
+            GLfloat flt = (GLfloat) ((zValues[i] >> 8) * (1.0 / 0xffffff));
             trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, &flt);
          }
       }
@@ -283,7 +283,7 @@ texture_put_mono_values(GLcontext *ctx, struct gl_renderbuffer *rb,
    }
    else if (rb->DataType == GL_UNSIGNED_INT_24_8_EXT) {
       const GLuint zValue = *((const GLuint *) value);
-      const GLfloat flt = (zValue >> 8) * (1.0 / 0xffffff);
+      const GLfloat flt = (GLfloat) ((zValue >> 8) * (1.0 / 0xffffff));
       for (i = 0; i < count; i++) {
          if (!mask || mask[i]) {
             trb->Store(trb->TexImage, x[i], y[i] + trb->Yoffset, z, &flt);
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index 113eef69f4..edb1ae965d 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -2377,7 +2377,7 @@ _mesa_texstore_z24_s8(TEXSTORE_PARAMS)
             _mesa_unpack_depth_span(ctx, srcWidth,
                                     GL_UNSIGNED_INT_24_8_EXT, /* dst type */
                                     dstRow, /* dst addr */
-                                    depthScale,
+                                    (GLuint) depthScale,
                                     srcType, src, srcPacking);
             /* get the 8-bit stencil values */
             _mesa_unpack_stencil_span(ctx, srcWidth,
diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c
index a4ef948b58..a6aa9c34b2 100644
--- a/src/mesa/main/varray.c
+++ b/src/mesa/main/varray.c
@@ -583,11 +583,6 @@ _mesa_VertexAttribPointerARB(GLuint index, GLint size, GLenum type,
       return;
    }
 
-   if (type == GL_UNSIGNED_BYTE && size != 4) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(size!=4)");
-      return;
-   }
-
    /* check for valid 'type' and compute StrideB right away */
    /* NOTE: more types are supported here than in the NV extension */
    switch (type) {
diff --git a/src/mesa/shader/arbprogram.c b/src/mesa/shader/arbprogram.c
index 1656dc9450..81c20a0150 100644
--- a/src/mesa/shader/arbprogram.c
+++ b/src/mesa/shader/arbprogram.c
@@ -33,12 +33,214 @@
 #include "arbprogram.h"
 #include "arbprogparse.h"
 #include "context.h"
+#include "hash.h"
 #include "imports.h"
 #include "macros.h"
 #include "mtypes.h"
 #include "program.h"
 
 
+
+/**
+ * Mixing ARB and NV vertex/fragment programs can be tricky.
+ * Note: GL_VERTEX_PROGRAM_ARB == GL_VERTEX_PROGRAM_NV
+ *  but, GL_FRAGMENT_PROGRAM_ARB != GL_FRAGMENT_PROGRAM_NV
+ * The two different fragment program targets are supposed to be compatible
+ * to some extent (see GL_ARB_fragment_program spec).
+ * This function does the compatibility check.
+ */
+static GLboolean
+compatible_program_targets(GLenum t1, GLenum t2)
+{
+   if (t1 == t2)
+      return GL_TRUE;
+   if (t1 == GL_FRAGMENT_PROGRAM_ARB && t2 == GL_FRAGMENT_PROGRAM_NV)
+      return GL_TRUE;
+   if (t1 == GL_FRAGMENT_PROGRAM_NV && t2 == GL_FRAGMENT_PROGRAM_ARB)
+      return GL_TRUE;
+   return GL_FALSE;
+}
+
+
+/**
+ * Bind a program (make it current)
+ * \note Called from the GL API dispatcher by both glBindProgramNV
+ * and glBindProgramARB.
+ */
+void GLAPIENTRY
+_mesa_BindProgram(GLenum target, GLuint id)
+{
+   struct gl_program *curProg, *newProg;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+
+   /* Error-check target and get curProg */
+   if ((target == GL_VERTEX_PROGRAM_ARB) && /* == GL_VERTEX_PROGRAM_NV */
+        (ctx->Extensions.NV_vertex_program ||
+         ctx->Extensions.ARB_vertex_program)) {
+      curProg = &ctx->VertexProgram.Current->Base;
+   }
+   else if ((target == GL_FRAGMENT_PROGRAM_NV
+             && ctx->Extensions.NV_fragment_program) ||
+            (target == GL_FRAGMENT_PROGRAM_ARB
+             && ctx->Extensions.ARB_fragment_program)) {
+      curProg = &ctx->FragmentProgram.Current->Base;
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glBindProgramNV/ARB(target)");
+      return;
+   }
+
+   /*
+    * Get pointer to new program to bind.
+    * NOTE: binding to a non-existant program is not an error.
+    * That's supposed to be caught in glBegin.
+    */
+   if (id == 0) {
+      /* Bind a default program */
+      newProg = NULL;
+      if (target == GL_VERTEX_PROGRAM_ARB) /* == GL_VERTEX_PROGRAM_NV */
+         newProg = &ctx->Shared->DefaultVertexProgram->Base;
+      else
+         newProg = &ctx->Shared->DefaultFragmentProgram->Base;
+   }
+   else {
+      /* Bind a user program */
+      newProg = _mesa_lookup_program(ctx, id);
+      if (!newProg || newProg == &_mesa_DummyProgram) {
+         /* allocate a new program now */
+         newProg = ctx->Driver.NewProgram(ctx, target, id);
+         if (!newProg) {
+            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindProgramNV/ARB");
+            return;
+         }
+         _mesa_HashInsert(ctx->Shared->Programs, id, newProg);
+      }
+      else if (!compatible_program_targets(newProg->Target, target)) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glBindProgramNV/ARB(target mismatch)");
+         return;
+      }
+   }
+
+   /** All error checking is complete now **/
+
+   if (curProg->Id == id) {
+      /* binding same program - no change */
+      return;
+   }
+
+   /* bind newProg */
+   if (target == GL_VERTEX_PROGRAM_ARB) { /* == GL_VERTEX_PROGRAM_NV */
+      _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
+                               (struct gl_vertex_program *) newProg);
+   }
+   else if (target == GL_FRAGMENT_PROGRAM_NV ||
+            target == GL_FRAGMENT_PROGRAM_ARB) {
+      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current,
+                               (struct gl_fragment_program *) newProg);
+   }
+
+   /* Never null pointers */
+   ASSERT(ctx->VertexProgram.Current);
+   ASSERT(ctx->FragmentProgram.Current);
+
+   if (ctx->Driver.BindProgram)
+      ctx->Driver.BindProgram(ctx, target, newProg);
+}
+
+
+/**
+ * Delete a list of programs.
+ * \note Not compiled into display lists.
+ * \note Called by both glDeleteProgramsNV and glDeleteProgramsARB.
+ */
+void GLAPIENTRY 
+_mesa_DeletePrograms(GLsizei n, const GLuint *ids)
+{
+   GLint i;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   if (n < 0) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "glDeleteProgramsNV" );
+      return;
+   }
+
+   for (i = 0; i < n; i++) {
+      if (ids[i] != 0) {
+         struct gl_program *prog = _mesa_lookup_program(ctx, ids[i]);
+         if (prog == &_mesa_DummyProgram) {
+            _mesa_HashRemove(ctx->Shared->Programs, ids[i]);
+         }
+         else if (prog) {
+            /* Unbind program if necessary */
+            if (prog->Target == GL_VERTEX_PROGRAM_ARB || /* == GL_VERTEX_PROGRAM_NV */
+                prog->Target == GL_VERTEX_STATE_PROGRAM_NV) {
+               if (ctx->VertexProgram.Current &&
+                   ctx->VertexProgram.Current->Base.Id == ids[i]) {
+                  /* unbind this currently bound program */
+                  _mesa_BindProgram(prog->Target, 0);
+               }
+            }
+            else if (prog->Target == GL_FRAGMENT_PROGRAM_NV ||
+                     prog->Target == GL_FRAGMENT_PROGRAM_ARB) {
+               if (ctx->FragmentProgram.Current &&
+                   ctx->FragmentProgram.Current->Base.Id == ids[i]) {
+                  /* unbind this currently bound program */
+                  _mesa_BindProgram(prog->Target, 0);
+               }
+            }
+            else {
+               _mesa_problem(ctx, "bad target in glDeleteProgramsNV");
+               return;
+            }
+            /* The ID is immediately available for re-use now */
+            _mesa_HashRemove(ctx->Shared->Programs, ids[i]);
+            _mesa_reference_program(ctx, &prog, NULL);
+         }
+      }
+   }
+}
+
+
+/**
+ * Generate a list of new program identifiers.
+ * \note Not compiled into display lists.
+ * \note Called by both glGenProgramsNV and glGenProgramsARB.
+ */
+void GLAPIENTRY
+_mesa_GenPrograms(GLsizei n, GLuint *ids)
+{
+   GLuint first;
+   GLuint i;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (n < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glGenPrograms");
+      return;
+   }
+
+   if (!ids)
+      return;
+
+   first = _mesa_HashFindFreeKeyBlock(ctx->Shared->Programs, n);
+
+   /* Insert pointer to dummy program as placeholder */
+   for (i = 0; i < (GLuint) n; i++) {
+      _mesa_HashInsert(ctx->Shared->Programs, first + i, &_mesa_DummyProgram);
+   }
+
+   /* Return the program names */
+   for (i = 0; i < (GLuint) n; i++) {
+      ids[i] = first + i;
+   }
+}
+
+
 void GLAPIENTRY
 _mesa_EnableVertexAttribArrayARB(GLuint index)
 {
diff --git a/src/mesa/shader/arbprogram.h b/src/mesa/shader/arbprogram.h
index 233f662965..6fe76267be 100644
--- a/src/mesa/shader/arbprogram.h
+++ b/src/mesa/shader/arbprogram.h
@@ -28,6 +28,16 @@
 
 
 extern void GLAPIENTRY
+_mesa_BindProgram(GLenum target, GLuint id);
+
+extern void GLAPIENTRY
+_mesa_DeletePrograms(GLsizei n, const GLuint *ids);
+
+extern void GLAPIENTRY
+_mesa_GenPrograms(GLsizei n, GLuint *ids);
+
+
+extern void GLAPIENTRY
 _mesa_EnableVertexAttribArrayARB(GLuint index);
 
 
diff --git a/src/mesa/shader/prog_execute.c b/src/mesa/shader/prog_execute.c
index abb143c4b9..4745211c65 100644
--- a/src/mesa/shader/prog_execute.c
+++ b/src/mesa/shader/prog_execute.c
@@ -716,7 +716,7 @@ _mesa_execute_program(GLcontext * ctx,
                 * result.z = result.x * APPX(result.y)
                 * We do what the ARB extension says.
                 */
-               q[2] = pow(2.0, t[0]);
+               q[2] = (GLfloat) pow(2.0, t[0]);
             }
             q[1] = t[0] - floor_t0;
             q[3] = 1.0F;
diff --git a/src/mesa/shader/prog_parameter.c b/src/mesa/shader/prog_parameter.c
index afdd7e5489..d87e8f6e15 100644
--- a/src/mesa/shader/prog_parameter.c
+++ b/src/mesa/shader/prog_parameter.c
@@ -62,29 +62,6 @@ _mesa_free_parameter_list(struct gl_program_parameter_list *paramList)
 }
 
 
-static GLint
-_mesa_fit_type_in_vec4(GLenum type)
-{
-   switch (type) {
-   case GL_FLOAT:
-   case GL_INT:
-      return 4;
-      break;
-   case GL_FLOAT_VEC2:
-   case GL_INT_VEC2:
-      return 2;
-      break;
-   case GL_FLOAT_VEC3:
-   case GL_INT_VEC3:
-      return 1;
-      break;
-   case GL_FLOAT_VEC4:
-   case GL_INT_VEC4:
-   default:
-      return 1;
-   }
-}
-
 /**
  * Add a new parameter to a parameter list.
  * Note that parameter values are usually 4-element GLfloat vectors.
@@ -294,7 +271,7 @@ _mesa_add_uniform(struct gl_program_parameter_list *paramList,
    }
    else {
       i = _mesa_add_parameter(paramList, PROGRAM_UNIFORM, name,
-                              size * _mesa_fit_type_in_vec4(datatype), datatype, NULL, NULL);
+                              size, datatype, NULL, NULL);
       return i;
    }
 }
@@ -319,6 +296,7 @@ _mesa_add_sampler(struct gl_program_parameter_list *paramList,
       return (GLint) paramList->ParameterValues[i][0];
    }
    else {
+      GLuint i;
       const GLint size = 1; /* a sampler is basically a texture unit number */
       GLfloat value;
       GLint numSamplers = 0;
@@ -347,7 +325,7 @@ _mesa_add_varying(struct gl_program_parameter_list *paramList,
       return i;
    }
    else {
-      assert(size == 4);
+      /*assert(size == 4);*/
       i = _mesa_add_parameter(paramList, PROGRAM_VARYING, name,
                               size, GL_NONE, NULL, NULL);
       return i;
@@ -362,7 +340,7 @@ _mesa_add_varying(struct gl_program_parameter_list *paramList,
  */
 GLint
 _mesa_add_attribute(struct gl_program_parameter_list *paramList,
-                    const char *name, GLint size, GLint attrib)
+                    const char *name, GLint size, GLenum datatype, GLint attrib)
 {
    GLint i = _mesa_lookup_parameter_index(paramList, -1, name);
    if (i >= 0) {
@@ -378,7 +356,7 @@ _mesa_add_attribute(struct gl_program_parameter_list *paramList,
       if (size < 0)
          size = 4;
       i = _mesa_add_parameter(paramList, PROGRAM_INPUT, name,
-                              size, GL_NONE, NULL, state);
+                              size, datatype, NULL, state);
    }
    return i;
 }
diff --git a/src/mesa/shader/prog_parameter.h b/src/mesa/shader/prog_parameter.h
index 105f6f24de..dfb8c39ca4 100644
--- a/src/mesa/shader/prog_parameter.h
+++ b/src/mesa/shader/prog_parameter.h
@@ -122,7 +122,7 @@ _mesa_add_varying(struct gl_program_parameter_list *paramList,
 
 extern GLint
 _mesa_add_attribute(struct gl_program_parameter_list *paramList,
-                    const char *name, GLint size, GLint attrib);
+                    const char *name, GLint size, GLenum datatype, GLint attrib);
 
 extern GLint
 _mesa_add_state_reference(struct gl_program_parameter_list *paramList,
diff --git a/src/mesa/shader/prog_print.c b/src/mesa/shader/prog_print.c
index 11f82c1fc1..5368ab2187 100644
--- a/src/mesa/shader/prog_print.c
+++ b/src/mesa/shader/prog_print.c
@@ -313,7 +313,7 @@ reg_string(enum register_file f, GLint index, gl_prog_print_mode mode,
 const char *
 _mesa_swizzle_string(GLuint swizzle, GLuint negateBase, GLboolean extended)
 {
-   static const char swz[] = "xyzw01?!";
+   static const char swz[] = "xyzw01!?";  /* See SWIZZLE_x definitions */
    static char s[20];
    GLuint i = 0;
 
@@ -363,7 +363,7 @@ _mesa_print_swizzle(GLuint swizzle)
       _mesa_printf(".xyzw\n");
    }
    else {
-      char *s = _mesa_swizzle_string(swizzle, 0, 0);
+      const char *s = _mesa_swizzle_string(swizzle, 0, 0);
       _mesa_printf("%s\n", s);
    }
 }
diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c
index 7e444de304..81bb4122f2 100644
--- a/src/mesa/shader/prog_statevars.c
+++ b/src/mesa/shader/prog_statevars.c
@@ -249,7 +249,7 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
       value[1] = ctx->Fog.Start;
       value[2] = ctx->Fog.End;
       value[3] = (ctx->Fog.End == ctx->Fog.Start)
-         ? 1.0 : (GLfloat)(1.0 / (ctx->Fog.End - ctx->Fog.Start));
+         ? 1.0f : (GLfloat)(1.0 / (ctx->Fog.End - ctx->Fog.Start));
       return;
    case STATE_CLIPPLANE:
       {
@@ -409,9 +409,9 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
                = ctx->Texture.Unit[unit]._Current;
             if (texObj) {
                struct gl_texture_image *texImage = texObj->Image[0][0];
-               ASSIGN_4V(value, 1.0 / texImage->Width,
+               ASSIGN_4V(value, (GLfloat) (1.0 / texImage->Width),
                          (GLfloat)(1.0 / texImage->Height),
-                         0.0, 1.0);
+                         0.0f, 1.0f);
             }
          }
          return;
@@ -425,7 +425,7 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
           * exp2: 2^-((density/(ln(2)^2) * fogcoord)^2)
           */
          value[0] = (ctx->Fog.End == ctx->Fog.Start)
-            ? 1.0 : (GLfloat)(-1.0F / (ctx->Fog.End - ctx->Fog.Start));
+            ? 1.0f : (GLfloat)(-1.0F / (ctx->Fog.End - ctx->Fog.Start));
          value[1] = ctx->Fog.End * -value[0];
          value[2] = (GLfloat)(ctx->Fog.Density * ONE_DIV_LN2);
          value[3] = (GLfloat)(ctx->Fog.Density * ONE_DIV_SQRT_LN2);
diff --git a/src/mesa/shader/program.c b/src/mesa/shader/program.c
index b27ed6b7d3..13d6df1ce6 100644
--- a/src/mesa/shader/program.c
+++ b/src/mesa/shader/program.c
@@ -82,7 +82,7 @@ _mesa_init_program(GLcontext *ctx)
    /* XXX probably move this stuff */
 #if FEATURE_ATI_fragment_shader
    ctx->ATIFragmentShader.Enabled = GL_FALSE;
-   ctx->ATIFragmentShader.Current = (struct ati_fragment_shader *) ctx->Shared->DefaultFragmentShader;
+   ctx->ATIFragmentShader.Current = ctx->Shared->DefaultFragmentShader;
    assert(ctx->ATIFragmentShader.Current);
    ctx->ATIFragmentShader.Current->RefCount++;
 #endif
@@ -679,210 +679,3 @@ _mesa_find_free_register(const struct gl_program *prog, GLuint regFile)
 
    return -1;
 }
-
-
-
-/**
- * Mixing ARB and NV vertex/fragment programs can be tricky.
- * Note: GL_VERTEX_PROGRAM_ARB == GL_VERTEX_PROGRAM_NV
- *  but, GL_FRAGMENT_PROGRAM_ARB != GL_FRAGMENT_PROGRAM_NV
- * The two different fragment program targets are supposed to be compatible
- * to some extent (see GL_ARB_fragment_program spec).
- * This function does the compatibility check.
- */
-static GLboolean
-compatible_program_targets(GLenum t1, GLenum t2)
-{
-   if (t1 == t2)
-      return GL_TRUE;
-   if (t1 == GL_FRAGMENT_PROGRAM_ARB && t2 == GL_FRAGMENT_PROGRAM_NV)
-      return GL_TRUE;
-   if (t1 == GL_FRAGMENT_PROGRAM_NV && t2 == GL_FRAGMENT_PROGRAM_ARB)
-      return GL_TRUE;
-   return GL_FALSE;
-}
-
-
-
-/**********************************************************************/
-/* API functions                                                      */
-/**********************************************************************/
-
-
-/**
- * Bind a program (make it current)
- * \note Called from the GL API dispatcher by both glBindProgramNV
- * and glBindProgramARB.
- */
-void GLAPIENTRY
-_mesa_BindProgram(GLenum target, GLuint id)
-{
-   struct gl_program *curProg, *newProg;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
-
-   /* Error-check target and get curProg */
-   if ((target == GL_VERTEX_PROGRAM_ARB) && /* == GL_VERTEX_PROGRAM_NV */
-        (ctx->Extensions.NV_vertex_program ||
-         ctx->Extensions.ARB_vertex_program)) {
-      curProg = &ctx->VertexProgram.Current->Base;
-   }
-   else if ((target == GL_FRAGMENT_PROGRAM_NV
-             && ctx->Extensions.NV_fragment_program) ||
-            (target == GL_FRAGMENT_PROGRAM_ARB
-             && ctx->Extensions.ARB_fragment_program)) {
-      curProg = &ctx->FragmentProgram.Current->Base;
-   }
-   else {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBindProgramNV/ARB(target)");
-      return;
-   }
-
-   /*
-    * Get pointer to new program to bind.
-    * NOTE: binding to a non-existant program is not an error.
-    * That's supposed to be caught in glBegin.
-    */
-   if (id == 0) {
-      /* Bind a default program */
-      newProg = NULL;
-      if (target == GL_VERTEX_PROGRAM_ARB) /* == GL_VERTEX_PROGRAM_NV */
-         newProg = &ctx->Shared->DefaultVertexProgram->Base;
-      else
-         newProg = &ctx->Shared->DefaultFragmentProgram->Base;
-   }
-   else {
-      /* Bind a user program */
-      newProg = _mesa_lookup_program(ctx, id);
-      if (!newProg || newProg == &_mesa_DummyProgram) {
-         /* allocate a new program now */
-         newProg = ctx->Driver.NewProgram(ctx, target, id);
-         if (!newProg) {
-            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindProgramNV/ARB");
-            return;
-         }
-         _mesa_HashInsert(ctx->Shared->Programs, id, newProg);
-      }
-      else if (!compatible_program_targets(newProg->Target, target)) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glBindProgramNV/ARB(target mismatch)");
-         return;
-      }
-   }
-
-   /** All error checking is complete now **/
-
-   if (curProg->Id == id) {
-      /* binding same program - no change */
-      return;
-   }
-
-   /* bind newProg */
-   if (target == GL_VERTEX_PROGRAM_ARB) { /* == GL_VERTEX_PROGRAM_NV */
-      _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
-                               (struct gl_vertex_program *) newProg);
-   }
-   else if (target == GL_FRAGMENT_PROGRAM_NV ||
-            target == GL_FRAGMENT_PROGRAM_ARB) {
-      _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current,
-                               (struct gl_fragment_program *) newProg);
-   }
-
-   /* Never null pointers */
-   ASSERT(ctx->VertexProgram.Current);
-   ASSERT(ctx->FragmentProgram.Current);
-
-   if (ctx->Driver.BindProgram)
-      ctx->Driver.BindProgram(ctx, target, newProg);
-}
-
-
-/**
- * Delete a list of programs.
- * \note Not compiled into display lists.
- * \note Called by both glDeleteProgramsNV and glDeleteProgramsARB.
- */
-void GLAPIENTRY 
-_mesa_DeletePrograms(GLsizei n, const GLuint *ids)
-{
-   GLint i;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
-   if (n < 0) {
-      _mesa_error( ctx, GL_INVALID_VALUE, "glDeleteProgramsNV" );
-      return;
-   }
-
-   for (i = 0; i < n; i++) {
-      if (ids[i] != 0) {
-         struct gl_program *prog = _mesa_lookup_program(ctx, ids[i]);
-         if (prog == &_mesa_DummyProgram) {
-            _mesa_HashRemove(ctx->Shared->Programs, ids[i]);
-         }
-         else if (prog) {
-            /* Unbind program if necessary */
-            if (prog->Target == GL_VERTEX_PROGRAM_ARB || /* == GL_VERTEX_PROGRAM_NV */
-                prog->Target == GL_VERTEX_STATE_PROGRAM_NV) {
-               if (ctx->VertexProgram.Current &&
-                   ctx->VertexProgram.Current->Base.Id == ids[i]) {
-                  /* unbind this currently bound program */
-                  _mesa_BindProgram(prog->Target, 0);
-               }
-            }
-            else if (prog->Target == GL_FRAGMENT_PROGRAM_NV ||
-                     prog->Target == GL_FRAGMENT_PROGRAM_ARB) {
-               if (ctx->FragmentProgram.Current &&
-                   ctx->FragmentProgram.Current->Base.Id == ids[i]) {
-                  /* unbind this currently bound program */
-                  _mesa_BindProgram(prog->Target, 0);
-               }
-            }
-            else {
-               _mesa_problem(ctx, "bad target in glDeleteProgramsNV");
-               return;
-            }
-            /* The ID is immediately available for re-use now */
-            _mesa_HashRemove(ctx->Shared->Programs, ids[i]);
-            _mesa_reference_program(ctx, &prog, NULL);
-         }
-      }
-   }
-}
-
-
-/**
- * Generate a list of new program identifiers.
- * \note Not compiled into display lists.
- * \note Called by both glGenProgramsNV and glGenProgramsARB.
- */
-void GLAPIENTRY
-_mesa_GenPrograms(GLsizei n, GLuint *ids)
-{
-   GLuint first;
-   GLuint i;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (n < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGenPrograms");
-      return;
-   }
-
-   if (!ids)
-      return;
-
-   first = _mesa_HashFindFreeKeyBlock(ctx->Shared->Programs, n);
-
-   /* Insert pointer to dummy program as placeholder */
-   for (i = 0; i < (GLuint) n; i++) {
-      _mesa_HashInsert(ctx->Shared->Programs, first + i, &_mesa_DummyProgram);
-   }
-
-   /* Return the program names */
-   for (i = 0; i < (GLuint) n; i++) {
-      ids[i] = first + i;
-   }
-}
diff --git a/src/mesa/shader/program.h b/src/mesa/shader/program.h
index 08fe576afc..7484961364 100644
--- a/src/mesa/shader/program.h
+++ b/src/mesa/shader/program.h
@@ -46,10 +46,6 @@
 extern struct gl_program _mesa_DummyProgram;
 
 
-/*
- * Internal functions
- */
-
 extern void
 _mesa_init_program(GLcontext *ctx);
 
@@ -121,19 +117,5 @@ extern GLint
 _mesa_find_free_register(const struct gl_program *prog, GLuint regFile);
 
 
-/*
- * API functions common to ARB/NV_vertex/fragment_program
- */
-
-extern void GLAPIENTRY
-_mesa_BindProgram(GLenum target, GLuint id);
-
-extern void GLAPIENTRY
-_mesa_DeletePrograms(GLsizei n, const GLuint *ids);
-
-extern void GLAPIENTRY
-_mesa_GenPrograms(GLsizei n, GLuint *ids);
-
-
 
 #endif /* PROGRAM_H */
diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c
index c1fbcde61e..bd3745cfe6 100644
--- a/src/mesa/shader/shader_api.c
+++ b/src/mesa/shader/shader_api.c
@@ -513,6 +513,7 @@ _mesa_bind_attrib_location(GLcontext *ctx, GLuint program, GLuint index,
    struct gl_shader_program *shProg;
    const GLint size = -1; /* unknown size */
    GLint i, oldIndex;
+   GLenum datatype;
 
    shProg = _mesa_lookup_shader_program_err(ctx, program,
                                             "glBindAttribLocation");
@@ -543,7 +544,7 @@ _mesa_bind_attrib_location(GLcontext *ctx, GLuint program, GLuint index,
    }
 
    /* this will replace the current value if it's already in the list */
-   i = _mesa_add_attribute(shProg->Attributes, name, size, index);
+   i = _mesa_add_attribute(shProg->Attributes, name, size, datatype, index);
    if (i < 0) {
       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindAttribLocation");
    }
@@ -710,16 +711,51 @@ _mesa_detach_shader(GLcontext *ctx, GLuint program, GLuint shader)
 }
 
 
+static GLint
+sizeof_glsl_type(GLenum type)
+{
+   switch (type) {
+   case GL_FLOAT:
+   case GL_INT:
+   case GL_BOOL:
+      return 1;
+   case GL_FLOAT_VEC2:
+   case GL_INT_VEC2:
+   case GL_BOOL_VEC2:
+      return 2;
+   case GL_FLOAT_VEC3:
+   case GL_INT_VEC3:
+   case GL_BOOL_VEC3:
+      return 3;
+   case GL_FLOAT_VEC4:
+   case GL_INT_VEC4:
+   case GL_BOOL_VEC4:
+      return 4;
+   case GL_FLOAT_MAT2:
+   case GL_FLOAT_MAT2x3:
+   case GL_FLOAT_MAT2x4:
+      return 8; /* two float[4] vectors */
+   case GL_FLOAT_MAT3:
+   case GL_FLOAT_MAT3x2:
+   case GL_FLOAT_MAT3x4:
+      return 12; /* three float[4] vectors */
+   case GL_FLOAT_MAT4:
+   case GL_FLOAT_MAT4x2:
+   case GL_FLOAT_MAT4x3:
+      return 16;  /* four float[4] vectors */
+   default:
+      _mesa_problem(NULL, "Invalid type in sizeof_glsl_type()");
+      return 1;
+   }
+}
+
+
 static void
 _mesa_get_active_attrib(GLcontext *ctx, GLuint program, GLuint index,
                         GLsizei maxLength, GLsizei *length, GLint *size,
                         GLenum *type, GLchar *nameOut)
 {
-   static const GLenum vec_types[] = {
-      GL_FLOAT, GL_FLOAT_VEC2, GL_FLOAT_VEC3, GL_FLOAT_VEC4
-   };
    struct gl_shader_program *shProg;
-   GLint sz;
 
    shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveAttrib");
    if (!shProg)
@@ -732,11 +768,11 @@ _mesa_get_active_attrib(GLcontext *ctx, GLuint program, GLuint index,
 
    copy_string(nameOut, maxLength, length,
                shProg->Attributes->Parameters[index].Name);
-   sz = shProg->Attributes->Parameters[index].Size;
    if (size)
-      *size = sz;
+      *size = shProg->Attributes->Parameters[index].Size
+         / sizeof_glsl_type(shProg->Attributes->Parameters[index].DataType);
    if (type)
-      *type = vec_types[sz]; /* XXX this is a temporary hack */
+      *type = shProg->Attributes->Parameters[index].DataType;
 }
 
 
@@ -779,8 +815,8 @@ _mesa_get_active_uniform(GLcontext *ctx, GLuint program, GLuint index,
       copy_string(nameOut, maxLength, length,
                   prog->Parameters->Parameters[progPos].Name);
    if (size)
-      *size = prog->Parameters->Parameters[progPos].Size;
-
+      *size = prog->Parameters->Parameters[progPos].Size
+         / sizeof_glsl_type(prog->Parameters->Parameters[progPos].DataType);
    if (type)
       *type = prog->Parameters->Parameters[progPos].DataType;
 }
@@ -969,7 +1005,7 @@ get_uniformfv(GLcontext *ctx, GLuint program, GLint location,
       = _mesa_lookup_shader_program(ctx, program);
    if (shProg) {
       if (shProg->Uniforms &&
-          location >= 0 && location < shProg->Uniforms->NumUniforms) {
+          location >= 0 && location < (GLint) shProg->Uniforms->NumUniforms) {
          GLint progPos;
          GLuint i;
          const struct gl_program *prog = NULL;
@@ -1172,6 +1208,60 @@ update_textures_used(struct gl_program *prog)
 }
 
 
+static GLboolean
+is_sampler_type(GLenum type)
+{
+   switch (type) {
+   case GL_SAMPLER_1D:
+   case GL_SAMPLER_2D:
+   case GL_SAMPLER_3D:
+   case GL_SAMPLER_CUBE:
+   case GL_SAMPLER_1D_SHADOW:
+   case GL_SAMPLER_2D_SHADOW:
+   case GL_SAMPLER_2D_RECT_ARB:
+   case GL_SAMPLER_2D_RECT_SHADOW_ARB:
+   case GL_SAMPLER_1D_ARRAY_EXT:
+   case GL_SAMPLER_2D_ARRAY_EXT:
+      return GL_TRUE;
+   default:
+      return GL_FALSE;
+   }
+}
+
+
+/**
+ * Check if the type given by userType is allowed to set a uniform of the
+ * target type.  Generally, equivalence is required, but setting Boolean
+ * uniforms can be done with glUniformiv or glUniformfv.
+ */
+static GLboolean
+compatible_types(GLenum userType, GLenum targetType)
+{
+   if (userType == targetType)
+      return GL_TRUE;
+
+   if (targetType == GL_BOOL && (userType == GL_FLOAT || userType == GL_INT))
+      return GL_TRUE;
+
+   if (targetType == GL_BOOL_VEC2 && (userType == GL_FLOAT_VEC2 ||
+                                      userType == GL_INT_VEC2))
+      return GL_TRUE;
+
+   if (targetType == GL_BOOL_VEC3 && (userType == GL_FLOAT_VEC3 ||
+                                      userType == GL_INT_VEC3))
+      return GL_TRUE;
+
+   if (targetType == GL_BOOL_VEC4 && (userType == GL_FLOAT_VEC4 ||
+                                      userType == GL_INT_VEC4))
+      return GL_TRUE;
+
+   if (is_sampler_type(targetType) && userType == GL_INT)
+      return GL_TRUE;
+
+   return GL_FALSE;
+}
+
+
 /**
  * Set the value of a program's uniform variable.
  * \param program  the program whose uniform to update
@@ -1185,6 +1275,12 @@ static void
 set_program_uniform(GLcontext *ctx, struct gl_program *program, GLint location,
                     GLenum type, GLsizei count, GLint elems, const void *values)
 {
+   if (!compatible_types(type,
+                         program->Parameters->Parameters[location].DataType)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(type mismatch)");
+      return;
+   }
+
    if (program->Parameters->Parameters[location].Type == PROGRAM_SAMPLER) {
       /* This controls which texture unit which is used by a sampler */
       GLuint texUnit, sampler;
@@ -1217,7 +1313,7 @@ set_program_uniform(GLcontext *ctx, struct gl_program *program, GLint location,
       /* ordinary uniform variable */
       GLsizei k, i;
 
-      if (count * elems > program->Parameters->Parameters[location].Size) {
+      if (count * elems > (GLint) program->Parameters->Parameters[location].Size) {
          _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(count too large)");
          return;
       }
@@ -1318,38 +1414,99 @@ _mesa_uniform(GLcontext *ctx, GLint location, GLsizei count,
 
 
 static void
+get_matrix_dims(GLenum type, GLint *rows, GLint *cols)
+{
+   switch (type) {
+   case GL_FLOAT_MAT2:
+      *rows = *cols = 2;
+      break;
+   case GL_FLOAT_MAT2x3:
+      *rows = 3;
+      *cols = 2;
+      break;
+   case GL_FLOAT_MAT2x4:
+      *rows = 4;
+      *cols = 2;
+      break;
+   case GL_FLOAT_MAT3:
+      *rows = 3;
+      *cols = 3;
+      break;
+   case GL_FLOAT_MAT3x2:
+      *rows = 2;
+      *cols = 3;
+      break;
+   case GL_FLOAT_MAT3x4:
+      *rows = 4;
+      *cols = 3;
+      break;
+   case GL_FLOAT_MAT4:
+      *rows = 4;
+      *cols = 4;
+      break;
+   case GL_FLOAT_MAT4x2:
+      *rows = 2;
+      *cols = 4;
+      break;
+   case GL_FLOAT_MAT4x3:
+      *rows = 3;
+      *cols = 4;
+      break;
+   default:
+      *rows = *cols = 0;
+   }
+}
+
+
+static void
 set_program_uniform_matrix(GLcontext *ctx, struct gl_program *program,
-                           GLuint location, GLuint rows, GLuint cols,
+                           GLuint location, GLuint count,
+                           GLuint rows, GLuint cols,
                            GLboolean transpose, const GLfloat *values)
 {
+   GLuint mat, row, col;
+   GLuint dst = location, src = 0;
+   GLint nr, nc;
+
+   /* check that the number of rows, columns is correct */
+   get_matrix_dims(program->Parameters->Parameters[location].DataType, &nr, &nc);
+   if (rows != nr || cols != nc) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glUniformMatrix(matrix size mismatch");
+      return;
+   }
+
    /*
     * Note: the _columns_ of a matrix are stored in program registers, not
-    * the rows.
+    * the rows.  So, the loops below look a little funny.
+    * XXX could optimize this a bit...
     */
-   /* XXXX need to test 3x3 and 2x2 matrices... */
-   if (transpose) {
-      GLuint row, col;
-      for (col = 0; col < cols; col++) {
-         GLfloat *v = program->Parameters->ParameterValues[location + col];
-         for (row = 0; row < rows; row++) {
-            v[row] = values[row * cols + col];
-         }
-      }
-   }
-   else {
-      GLuint row, col;
+
+   /* loop over matrices */
+   for (mat = 0; mat < count; mat++) {
+
+      /* each matrix: */
       for (col = 0; col < cols; col++) {
-         GLfloat *v = program->Parameters->ParameterValues[location + col];
+         GLfloat *v = program->Parameters->ParameterValues[dst];
          for (row = 0; row < rows; row++) {
-            v[row] = values[col * rows + row];
+            if (transpose) {
+               v[row] = values[src + row * cols + col];
+            }
+            else {
+               v[row] = values[src + col * rows + row];
+            }
          }
+         dst++;
       }
+
+      src += rows * cols;  /* next matrix */
    }
 }
 
 
 /**
  * Called by ctx->Driver.UniformMatrix().
+ * Note: cols=2, rows=4  ==>  array[2] of vec4
  */
 static void
 _mesa_uniform_matrix(GLcontext *ctx, GLint cols, GLint rows,
@@ -1367,7 +1524,7 @@ _mesa_uniform_matrix(GLcontext *ctx, GLint cols, GLint rows,
    if (location == -1)
       return;   /* The standard specifies this as a no-op */
 
-   if (location < 0 || location >= shProg->Uniforms->NumUniforms) {
+   if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix(location)");
       return;
    }
@@ -1382,7 +1539,7 @@ _mesa_uniform_matrix(GLcontext *ctx, GLint cols, GLint rows,
       GLint loc = shProg->Uniforms->Uniforms[location].VertPos;
       if (loc >= 0) {
          set_program_uniform_matrix(ctx, &shProg->VertexProgram->Base,
-                                    loc, rows, cols, transpose, values);
+                                    loc, count, rows, cols, transpose, values);
       }
    }
 
@@ -1390,7 +1547,7 @@ _mesa_uniform_matrix(GLcontext *ctx, GLint cols, GLint rows,
       GLint loc = shProg->Uniforms->Uniforms[location].FragPos;
       if (loc >= 0) {
          set_program_uniform_matrix(ctx, &shProg->FragmentProgram->Base,
-                                    loc, rows, cols, transpose, values);
+                                    loc, count, rows, cols, transpose, values);
       }
    }
 }
@@ -1400,15 +1557,19 @@ static void
 _mesa_validate_program(GLcontext *ctx, GLuint program)
 {
    struct gl_shader_program *shProg;
-   shProg = _mesa_lookup_shader_program(ctx, program);
+
+   shProg = _mesa_lookup_shader_program_err(ctx, program, "glValidateProgram");
    if (!shProg) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glValidateProgram(program)");
       return;
    }
-   /* XXX temporary */
-   shProg->Validated = GL_TRUE;
 
-   /* From the GL spec:
+   if (!shProg->LinkStatus) {
+      shProg->Validated = GL_FALSE;
+      return;
+   }
+
+   /* From the GL spec, a program is invalid if any of these are true:
+
      any two active samplers in the current program object are of
      different types, but refer to the same texture image unit,
 
@@ -1421,6 +1582,8 @@ _mesa_validate_program(GLcontext *ctx, GLuint program)
      processing exceeds the combined limit on the total number of texture
      image units allowed.
    */
+
+   shProg->Validated = GL_TRUE;
 }
 
 
diff --git a/src/mesa/shader/slang/library/slang_common_builtin.gc b/src/mesa/shader/slang/library/slang_common_builtin.gc
index f741c657e4..3726335471 100644
--- a/src/mesa/shader/slang/library/slang_common_builtin.gc
+++ b/src/mesa/shader/slang/library/slang_common_builtin.gc
@@ -203,19 +203,19 @@ float degrees(const float rad)
 
 vec2 degrees(const vec2 rad)
 {
-   const float c = 3.1415926 / 180.0;
+   const float c = 180.0 / 3.1415926;
    __asm vec4_multiply __retVal.xy, rad.xy, c.xx;
 }
 
 vec3 degrees(const vec3 rad)
 {
-   const float c = 3.1415926 / 180.0;
+   const float c = 180.0 / 3.1415926;
    __asm vec4_multiply __retVal.xyz, rad.xyz, c.xxx;
 }
 
 vec4 degrees(const vec4 rad)
 {
-   const float c = 3.1415926 / 180.0;
+   const float c = 180.0 / 3.1415926;
    __asm vec4_multiply __retVal, rad, c.xxxx;
 }
 
@@ -401,16 +401,17 @@ vec4 atan(const vec4 y_over_x)
 
 float atan(const float y, const float x)
 {
-    if (x == 0.0)
-       return 0.0;
-    float z = atan(y / x);
-    if (x < 0.0)
-    {
-        if (y < 0.0)
-            return z - 3.141593;
-        return z + 3.141593;
-    }
-    return z;
+   float r;
+   if (abs(x) > 1.0e-4) {
+      r = atan(y / x);
+      if (x < 0.0) {
+         r = r + sign(y) * 3.141593;
+      }
+   }
+   else {
+      r = sign(y) * 1.5707965;  // pi/2
+   }
+   return r;
 }
 
 vec2 atan(const vec2 u, const vec2 v)
diff --git a/src/mesa/shader/slang/library/slang_common_builtin_gc.h b/src/mesa/shader/slang/library/slang_common_builtin_gc.h
index 260a768de6..0a43cad2a3 100644
--- a/src/mesa/shader/slang/library/slang_common_builtin_gc.h
+++ b/src/mesa/shader/slang/library/slang_common_builtin_gc.h
@@ -116,25 +116,25 @@
 101,103,114,101,101,115,0,1,1,0,9,114,97,100,0,0,0,1,3,2,1,9,1,99,0,2,17,49,56,48,0,48,0,0,17,51,0,
 49,52,49,53,57,50,54,0,0,49,0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,18,95,95,114,
 101,116,86,97,108,0,59,120,0,0,18,114,97,100,0,0,18,99,0,0,0,0,1,0,10,0,100,101,103,114,101,101,
-115,0,1,1,0,10,114,97,100,0,0,0,1,3,2,1,9,1,99,0,2,17,51,0,49,52,49,53,57,50,54,0,0,17,49,56,48,0,
-48,0,0,49,0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,18,95,95,114,101,116,86,97,108,
+115,0,1,1,0,10,114,97,100,0,0,0,1,3,2,1,9,1,99,0,2,17,49,56,48,0,48,0,0,17,51,0,49,52,49,53,57,50,
+54,0,0,49,0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,18,95,95,114,101,116,86,97,108,
 0,59,120,121,0,0,18,114,97,100,0,59,120,121,0,0,18,99,0,59,120,120,0,0,0,0,1,0,11,0,100,101,103,
-114,101,101,115,0,1,1,0,11,114,97,100,0,0,0,1,3,2,1,9,1,99,0,2,17,51,0,49,52,49,53,57,50,54,0,0,17,
-49,56,48,0,48,0,0,49,0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,18,95,95,114,101,116,
-86,97,108,0,59,120,121,122,0,0,18,114,97,100,0,59,120,121,122,0,0,18,99,0,59,120,120,120,0,0,0,0,1,
-0,12,0,100,101,103,114,101,101,115,0,1,1,0,12,114,97,100,0,0,0,1,3,2,1,9,1,99,0,2,17,51,0,49,52,49,
-53,57,50,54,0,0,17,49,56,48,0,48,0,0,49,0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,
-18,95,95,114,101,116,86,97,108,0,0,18,114,97,100,0,0,18,99,0,59,120,120,120,120,0,0,0,0,1,0,9,0,
-115,105,110,0,1,1,0,9,114,97,100,105,97,110,115,0,0,0,1,4,102,108,111,97,116,95,115,105,110,101,0,
-18,95,95,114,101,116,86,97,108,0,59,120,0,0,18,114,97,100,105,97,110,115,0,0,0,0,1,0,10,0,115,105,
-110,0,1,1,0,10,114,97,100,105,97,110,115,0,0,0,1,4,102,108,111,97,116,95,115,105,110,101,0,18,95,
-95,114,101,116,86,97,108,0,59,120,0,0,18,114,97,100,105,97,110,115,0,59,120,0,0,0,4,102,108,111,97,
-116,95,115,105,110,101,0,18,95,95,114,101,116,86,97,108,0,59,121,0,0,18,114,97,100,105,97,110,115,
-0,59,121,0,0,0,0,1,0,11,0,115,105,110,0,1,1,0,11,114,97,100,105,97,110,115,0,0,0,1,4,102,108,111,
-97,116,95,115,105,110,101,0,18,95,95,114,101,116,86,97,108,0,59,120,0,0,18,114,97,100,105,97,110,
-115,0,59,120,0,0,0,4,102,108,111,97,116,95,115,105,110,101,0,18,95,95,114,101,116,86,97,108,0,59,
-121,0,0,18,114,97,100,105,97,110,115,0,59,121,0,0,0,4,102,108,111,97,116,95,115,105,110,101,0,18,
-95,95,114,101,116,86,97,108,0,59,122,0,0,18,114,97,100,105,97,110,115,0,59,122,0,0,0,0,1,0,12,0,
+114,101,101,115,0,1,1,0,11,114,97,100,0,0,0,1,3,2,1,9,1,99,0,2,17,49,56,48,0,48,0,0,17,51,0,49,52,
+49,53,57,50,54,0,0,49,0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,18,95,95,114,101,
+116,86,97,108,0,59,120,121,122,0,0,18,114,97,100,0,59,120,121,122,0,0,18,99,0,59,120,120,120,0,0,0,
+0,1,0,12,0,100,101,103,114,101,101,115,0,1,1,0,12,114,97,100,0,0,0,1,3,2,1,9,1,99,0,2,17,49,56,48,
+0,48,0,0,17,51,0,49,52,49,53,57,50,54,0,0,49,0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,
+121,0,18,95,95,114,101,116,86,97,108,0,0,18,114,97,100,0,0,18,99,0,59,120,120,120,120,0,0,0,0,1,0,
+9,0,115,105,110,0,1,1,0,9,114,97,100,105,97,110,115,0,0,0,1,4,102,108,111,97,116,95,115,105,110,
+101,0,18,95,95,114,101,116,86,97,108,0,59,120,0,0,18,114,97,100,105,97,110,115,0,0,0,0,1,0,10,0,
+115,105,110,0,1,1,0,10,114,97,100,105,97,110,115,0,0,0,1,4,102,108,111,97,116,95,115,105,110,101,0,
+18,95,95,114,101,116,86,97,108,0,59,120,0,0,18,114,97,100,105,97,110,115,0,59,120,0,0,0,4,102,108,
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+118,101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,59,120,121,122,0,0,18,117,0,0,18,
+118,0,0,0,0,1,0,4,0,101,113,117,97,108,0,1,1,0,8,117,0,0,1,1,0,8,118,0,0,0,1,4,118,101,99,52,95,
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+95,95,114,101,116,86,97,108,0,59,120,121,122,0,0,18,117,0,0,18,118,0,0,0,0,1,0,4,0,110,111,116,69,
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+6,117,0,0,1,1,0,6,118,0,0,0,1,4,118,101,99,52,95,115,110,101,0,18,95,95,114,101,116,86,97,108,0,59,
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+110,111,116,69,113,117,97,108,0,1,1,0,3,117,0,0,1,1,0,3,118,0,0,0,1,4,118,101,99,52,95,115,110,101,
+0,18,95,95,114,101,116,86,97,108,0,59,120,121,122,0,0,18,117,0,0,18,118,0,0,0,0,1,0,4,0,110,111,
+116,69,113,117,97,108,0,1,1,0,4,117,0,0,1,1,0,4,118,0,0,0,1,4,118,101,99,52,95,115,110,101,0,18,95,
+95,114,101,116,86,97,108,0,0,18,117,0,0,18,118,0,0,0,0,1,0,1,0,97,110,121,0,1,1,0,2,118,0,0,0,1,3,
+2,0,9,1,115,117,109,0,0,0,4,118,101,99,52,95,97,100,100,0,18,115,117,109,0,59,120,0,0,18,118,0,59,
+120,0,0,18,118,0,59,121,0,0,0,4,118,101,99,52,95,115,110,101,0,18,95,95,114,101,116,86,97,108,0,59,
+120,0,0,18,115,117,109,0,59,120,0,0,17,48,0,48,0,0,0,0,0,1,0,1,0,97,110,121,0,1,1,0,3,118,0,0,0,1,
+3,2,0,9,1,115,117,109,0,0,0,4,118,101,99,52,95,97,100,100,0,18,115,117,109,0,59,120,0,0,18,118,0,
+59,120,0,0,18,118,0,59,121,0,0,0,4,118,101,99,52,95,97,100,100,0,18,115,117,109,0,59,120,0,0,18,
+115,117,109,0,59,120,0,0,18,118,0,59,122,0,0,0,4,118,101,99,52,95,115,110,101,0,18,95,95,114,101,
+116,86,97,108,0,59,120,0,0,18,115,117,109,0,59,120,0,0,17,48,0,48,0,0,0,0,0,1,0,1,0,97,110,121,0,1,
+1,0,4,118,0,0,0,1,3,2,0,9,1,115,117,109,0,0,0,4,118,101,99,52,95,97,100,100,0,18,115,117,109,0,59,
+120,0,0,18,118,0,59,120,0,0,18,118,0,59,121,0,0,0,4,118,101,99,52,95,97,100,100,0,18,115,117,109,0,
+59,120,0,0,18,115,117,109,0,59,120,0,0,18,118,0,59,122,0,0,0,4,118,101,99,52,95,97,100,100,0,18,
+115,117,109,0,59,120,0,0,18,115,117,109,0,59,120,0,0,18,118,0,59,119,0,0,0,4,118,101,99,52,95,115,
+110,101,0,18,95,95,114,101,116,86,97,108,0,59,120,0,0,18,115,117,109,0,59,120,0,0,17,48,0,48,0,0,0,
+0,0,1,0,1,0,97,108,108,0,1,1,0,2,118,0,0,0,1,3,2,0,9,1,112,114,111,100,0,0,0,4,118,101,99,52,95,
+109,117,108,116,105,112,108,121,0,18,112,114,111,100,0,59,120,0,0,18,118,0,59,120,0,0,18,118,0,59,
+121,0,0,0,4,118,101,99,52,95,115,110,101,0,18,95,95,114,101,116,86,97,108,0,59,120,0,0,18,112,114,
+111,100,0,59,120,0,0,17,48,0,48,0,0,0,0,8,18,118,0,59,120,0,18,118,0,59,121,0,34,0,0,1,0,1,0,97,
+108,108,0,1,1,0,3,118,0,0,0,1,3,2,0,9,1,112,114,111,100,0,0,0,4,118,101,99,52,95,109,117,108,116,
+105,112,108,121,0,18,112,114,111,100,0,59,120,0,0,18,118,0,59,120,0,0,18,118,0,59,121,0,0,0,4,118,
+101,99,52,95,109,117,108,116,105,112,108,121,0,18,112,114,111,100,0,59,120,0,0,18,112,114,111,100,
+0,59,120,0,0,18,118,0,59,122,0,0,0,4,118,101,99,52,95,115,110,101,0,18,95,95,114,101,116,86,97,108,
+0,59,120,0,0,18,112,114,111,100,0,59,120,0,0,17,48,0,48,0,0,0,0,0,1,0,1,0,97,108,108,0,1,1,0,4,118,
+0,0,0,1,3,2,0,9,1,112,114,111,100,0,0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,18,
+112,114,111,100,0,59,120,0,0,18,118,0,59,120,0,0,18,118,0,59,121,0,0,0,4,118,101,99,52,95,109,117,
+108,116,105,112,108,121,0,18,112,114,111,100,0,59,120,0,0,18,112,114,111,100,0,59,120,0,0,18,118,0,
+59,122,0,0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,18,112,114,111,100,0,59,120,0,0,
+18,112,114,111,100,0,59,120,0,0,18,118,0,59,119,0,0,0,4,118,101,99,52,95,115,110,101,0,18,95,95,
+114,101,116,86,97,108,0,59,120,0,0,18,112,114,111,100,0,59,120,0,0,17,48,0,48,0,0,0,0,0,1,0,2,0,
+110,111,116,0,1,1,0,2,118,0,0,0,1,4,118,101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,
+0,59,120,121,0,0,18,118,0,0,17,48,0,48,0,0,0,0,0,1,0,3,0,110,111,116,0,1,1,0,3,118,0,0,0,1,4,118,
+101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,59,120,121,122,0,0,18,118,0,0,17,48,0,
+48,0,0,0,0,0,1,0,4,0,110,111,116,0,1,1,0,4,118,0,0,0,1,4,118,101,99,52,95,115,101,113,0,18,95,95,
+114,101,116,86,97,108,0,0,18,118,0,0,17,48,0,48,0,0,0,0,0,1,0,12,0,116,101,120,116,117,114,101,49,
+68,0,1,1,0,16,115,97,109,112,108,101,114,0,0,1,1,0,9,99,111,111,114,100,0,0,0,1,4,118,101,99,52,95,
+116,101,120,49,100,0,18,95,95,114,101,116,86,97,108,0,0,18,115,97,109,112,108,101,114,0,0,18,99,
 111,111,114,100,0,0,0,0,1,0,12,0,116,101,120,116,117,114,101,49,68,80,114,111,106,0,1,1,0,16,115,
 97,109,112,108,101,114,0,0,1,1,0,10,99,111,111,114,100,0,0,0,1,4,118,101,99,52,95,116,101,120,112,
 49,100,0,18,95,95,114,101,116,86,97,108,0,0,18,115,97,109,112,108,101,114,0,0,18,99,111,111,114,
diff --git a/src/mesa/shader/slang/library/slang_core.gc b/src/mesa/shader/slang/library/slang_core.gc
index 15a0792f43..2c3a5a6c45 100644
--- a/src/mesa/shader/slang/library/slang_core.gc
+++ b/src/mesa/shader/slang/library/slang_core.gc
@@ -113,13 +113,13 @@ int __constructor(const float f)
 bool __constructor(const int i)
 {
    const float zero = 0.0;
-   __asm vec4_seq __retVal, i, zero;
+   __asm vec4_sne __retVal, i, zero;
 }
 
 bool __constructor(const float f)
 {
    const float zero = 0.0;
-   __asm vec4_seq __retVal, i, zero;
+   __asm vec4_sne __retVal, f, zero;
 }
 
 int __constructor(const bool b)
@@ -176,6 +176,11 @@ vec2 __constructor(const bool b)
    __retVal.xy = b.xx;
 }
 
+vec2 __constructor(const bvec2 b)
+{
+   __retVal = b;
+}
+
 vec2 __constructor(const vec3 v)
 {
    __retVal.xy = v.xy;
@@ -211,6 +216,11 @@ vec3 __constructor(const bool b)
    __retVal.xyz = b.xxx;
 }
 
+vec3 __constructor(const bvec3 b)
+{
+   __retVal = b;
+}
+
 vec3 __constructor(const vec4 v)
 {
    __retVal.xyz = v.xyz;
@@ -242,6 +252,11 @@ vec4 __constructor(const bool b)
    __retVal = b.xxxx;
 }
 
+vec4 __constructor(const bvec4 b)
+{
+   __retVal = b;
+}
+
 vec4 __constructor(const vec3 v3, const float f)
 {
    // XXX this constructor shouldn't be needed anymore
@@ -349,25 +364,24 @@ bvec2 __constructor(const bool b)
 bvec2 __constructor(const float f)
 {
    const vec2 zero = vec2(0.0, 0.0);
-   __asm vec4_seq __retVal.xy, f.xx, zero;
+   __asm vec4_sne __retVal.xy, f.xx, zero;
 }
 
 bvec2 __constructor(const int i)
 {
    const ivec2 zero = ivec2(0, 0);
-   __asm vec4_seq __retVal.xy, i.xx, zero;
+   __asm vec4_sne __retVal.xy, i.xx, zero;
 }
 
 bvec2 __constructor(const vec2 v)
 {
-   const vec2 zero = vec2(0.0, 0.0);
-   __asm vec4_seq __retVal.xy, v, zero;
+   __asm vec4_sne __retVal.xy, v, 0.0;
 }
 
 bvec2 __constructor(const ivec2 v)
 {
    const ivec2 zero = ivec2(0, 0);
-   __asm vec4_seq __retVal.xy, v, zero;
+   __asm vec4_sne __retVal.xy, v, zero;
 }
 
 
@@ -389,25 +403,25 @@ bvec3 __constructor(const bool b)
 bvec3 __constructor(const float f)
 {
    const vec3 zero = vec3(0.0, 0.0, 0.0);
-   __asm vec4_seq __retVal.xyz, f.xxx, zero;
+   __asm vec4_sne __retVal.xyz, f.xxx, zero;
 }
 
 bvec3 __constructor(const int i)
 {
    const ivec3 zero = ivec3(0, 0, 0);
-   __asm vec4_seq __retVal.xyz, i.xxx, zero;
+   __asm vec4_sne __retVal.xyz, i.xxx, zero;
 }
 
 bvec3 __constructor(const vec3 v)
 {
    const vec3 zero = vec3(0.0, 0.0, 0.0);
-   __asm vec4_seq __retVal.xyz, v, zero;
+   __asm vec4_sne __retVal.xyz, v, zero;
 }
 
 bvec3 __constructor(const ivec3 v)
 {
    const ivec3 zero = ivec3(0, 0, 0);
-   __asm vec4_seq __retVal.xyz, v, zero;
+   __asm vec4_sne __retVal.xyz, v, zero;
 }
 
 
@@ -430,25 +444,25 @@ bvec4 __constructor(const bool b)
 bvec4 __constructor(const float f)
 {
    const vec4 zero = vec4(0.0, 0.0, 0.0, 0.0);
-   __asm vec4_seq __retVal, f.xxxx, zero;
+   __asm vec4_sne __retVal, f.xxxx, zero;
 }
 
 bvec4 __constructor(const int i)
 {
    const ivec4 zero = ivec4(0, 0, 0, 0);
-   __asm vec4_seq __retVal, i.xxxx, zero;
+   __asm vec4_sne __retVal, i.xxxx, zero;
 }
 
 bvec4 __constructor(const vec4 v)
 {
    const vec4 zero = vec4(0.0, 0.0, 0.0, 0.0);
-   __asm vec4_seq __retVal, v, zero;
+   __asm vec4_sne __retVal, v, zero;
 }
 
 bvec4 __constructor(const ivec4 v)
 {
    const ivec4 zero = ivec4(0, 0, 0, 0);
-   __asm vec4_seq __retVal, v, zero;
+   __asm vec4_sne __retVal, v, zero;
 }
 
 
@@ -1226,6 +1240,7 @@ void __operator /= (inout int a, const int b)
    float invB;
    __asm float_rcp invB, b;
    __asm vec4_multiply a, a, invB;
+   __asm float_to_int a, a;
 }
 
 
@@ -1252,7 +1267,7 @@ void __operator /= (inout ivec2 v, const ivec2 u)
    __asm float_rcp inv.x, u.x;
    __asm float_rcp inv.y, u.y;
    __asm vec4_multiply z, v, inv;
-   __asm float_to_int __retVal, z;
+   __asm float_to_int v, z;
 }
 
 
@@ -1279,7 +1294,7 @@ void __operator /= (inout ivec3 v, const ivec3 u)
    __asm float_rcp inv.x, u.x;
    __asm float_rcp inv.y, u.y;
    __asm vec4_multiply z, v, inv;
-   __asm float_to_int __retVal, z;
+   __asm float_to_int v, z;
 }
 
 
@@ -1306,7 +1321,7 @@ void __operator /= (inout ivec4 v, const ivec4 u)
    __asm float_rcp inv.x, u.x;
    __asm float_rcp inv.y, u.y;
    __asm vec4_multiply z, v, inv;
-   __asm float_to_int __retVal, z;
+   __asm float_to_int v, z;
 }
 
 
@@ -1314,7 +1329,7 @@ void __operator /= (inout ivec4 v, const ivec4 u)
 
 void __operator += (inout float a, const float b)
 {
-    __asm vec4_add a.x, a.x, b;
+    __asm vec4_add a.x, a.x, b.x;
 }
 
 void __operator -= (inout float a, const float b)
@@ -1518,7 +1533,7 @@ void __operator /= (inout vec2 v, const float a)
 {
    float invA;
    __asm float_rcp invA, a;
-   __asm vec4_multiply v.xy, v.xy, a.xx;
+   __asm vec4_multiply v.xy, v.xy, invA.xx;
 }
 
 
@@ -1543,7 +1558,7 @@ void __operator /= (inout vec3 v, const float a)
 {
    float invA;
    __asm float_rcp invA, a;
-   __asm vec4_multiply v.xyz, v.xyz, a.xxx;
+   __asm vec4_multiply v.xyz, v.xyz, invA.xxx;
 }
 
 
@@ -1568,7 +1583,7 @@ void __operator /= (inout vec4 v, const float a)
 {
    float invA;
    __asm float_rcp invA, a;
-   __asm vec4_multiply v, v, a.xxxx;
+   __asm vec4_multiply v, v, invA.xxxx;
 }
 
 
diff --git a/src/mesa/shader/slang/library/slang_core_gc.h b/src/mesa/shader/slang/library/slang_core_gc.h
index 5213b693b3..f71fe28cda 100644
--- a/src/mesa/shader/slang/library/slang_core_gc.h
+++ b/src/mesa/shader/slang/library/slang_core_gc.h
@@ -4,9 +4,9 @@
 
 3,1,0,5,1,1,1,0,9,102,0,0,0,1,4,102,108,111,97,116,95,116,111,95,105,110,116,0,18,95,95,114,101,
 116,86,97,108,0,0,18,102,0,0,0,0,1,0,1,1,1,1,0,5,105,0,0,0,1,3,2,1,9,1,122,101,114,111,0,2,17,48,0,
-48,0,0,0,0,4,118,101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,0,18,105,0,0,18,122,
+48,0,0,0,0,4,118,101,99,52,95,115,110,101,0,18,95,95,114,101,116,86,97,108,0,0,18,105,0,0,18,122,
 101,114,111,0,0,0,0,1,0,1,1,1,1,0,9,102,0,0,0,1,3,2,1,9,1,122,101,114,111,0,2,17,48,0,48,0,0,0,0,4,
-118,101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,0,18,105,0,0,18,122,101,114,111,0,
+118,101,99,52,95,115,110,101,0,18,95,95,114,101,116,86,97,108,0,0,18,102,0,0,18,122,101,114,111,0,
 0,0,0,1,0,5,1,1,1,0,1,98,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,18,98,0,20,0,0,1,0,9,1,1,1,0,1,
 98,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,18,98,0,20,0,0,1,0,9,1,1,1,0,5,105,0,0,0,1,4,105,110,
 116,95,116,111,95,102,108,111,97,116,0,18,95,95,114,101,116,86,97,108,0,0,18,105,0,0,0,0,1,0,1,1,1,
@@ -17,471 +17,473 @@
 1,0,10,1,1,1,0,9,102,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,0,18,102,0,59,120,120,0,
 20,0,0,1,0,10,1,1,1,0,5,105,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,0,18,105,0,59,
 120,120,0,20,0,0,1,0,10,1,1,1,0,1,98,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,0,18,98,
-0,59,120,120,0,20,0,0,1,0,10,1,1,1,0,11,118,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,
-0,18,118,0,59,120,121,0,20,0,0,1,0,10,1,1,1,0,12,118,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,
-115,116,0,18,118,0,59,120,121,0,20,0,0,1,0,11,1,1,1,0,9,120,0,0,1,1,0,9,121,0,0,1,1,0,9,122,0,0,0,
-1,9,18,95,95,114,101,116,86,97,108,0,59,120,0,18,120,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,
-121,0,18,121,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,122,0,18,122,0,20,0,0,1,0,11,1,1,1,0,9,
-102,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,122,0,18,102,0,59,120,120,120,0,20,0,0,1,
-0,11,1,1,1,0,5,105,0,0,0,1,4,105,110,116,95,116,111,95,102,108,111,97,116,0,18,95,95,114,101,116,
-86,97,108,0,59,120,121,122,0,0,18,105,0,59,120,120,120,0,0,0,0,1,0,11,1,1,1,0,1,98,0,0,0,1,9,18,95,
-95,114,101,116,86,97,108,0,59,120,121,122,0,18,98,0,59,120,120,120,0,20,0,0,1,0,11,1,1,1,0,12,118,
-0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,122,0,18,118,0,59,120,121,122,0,20,0,0,1,0,
-12,1,1,1,0,9,120,0,0,1,1,0,9,121,0,0,1,1,0,9,122,0,0,1,1,0,9,119,0,0,0,1,9,18,95,95,114,101,116,86,
-97,108,0,59,120,0,18,120,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,121,0,18,121,0,20,0,9,18,95,
-95,114,101,116,86,97,108,0,59,122,0,18,122,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,119,0,18,
-119,0,20,0,0,1,0,12,1,1,1,0,9,102,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,18,102,0,59,120,120,
-120,120,0,20,0,0,1,0,12,1,1,1,0,5,105,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,18,105,0,59,120,
-120,120,120,0,20,0,0,1,0,12,1,1,1,0,1,98,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,18,98,0,59,120,
-120,120,120,0,20,0,0,1,0,12,1,1,1,0,11,118,51,0,0,1,1,0,9,102,0,0,0,1,9,18,95,95,114,101,116,86,97,
-108,0,59,120,121,122,0,18,118,51,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,119,0,18,102,0,20,0,
-0,1,0,12,1,1,1,0,10,118,50,0,0,1,1,0,9,102,49,0,0,1,1,0,9,102,50,0,0,0,1,9,18,95,95,114,101,116,86,
-97,108,0,59,120,121,0,18,118,50,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,122,0,18,102,49,0,20,
-0,9,18,95,95,114,101,116,86,97,108,0,59,119,0,18,102,50,0,20,0,0,1,0,6,1,1,1,0,5,105,0,0,1,1,0,5,
-106,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,0,18,105,0,20,0,9,18,95,95,114,101,116,86,97,
-108,0,59,121,0,18,106,0,20,0,0,1,0,6,1,1,1,0,5,105,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,
-120,121,0,18,105,0,59,120,120,0,20,0,0,1,0,6,1,1,1,0,9,102,0,0,0,1,4,102,108,111,97,116,95,116,111,
-95,105,110,116,0,18,95,95,114,101,116,86,97,108,0,59,120,121,0,0,18,102,0,59,120,120,0,0,0,0,1,0,6,
-1,1,1,0,1,98,0,0,0,1,4,102,108,111,97,116,95,116,111,95,105,110,116,0,18,95,95,114,101,116,86,97,
-108,0,59,120,121,0,0,18,98,0,59,120,120,0,0,0,0,1,0,7,1,1,1,0,5,105,0,0,1,1,0,5,106,0,0,1,1,0,5,
-107,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,0,18,105,0,20,0,9,18,95,95,114,101,116,86,97,
-108,0,59,121,0,18,106,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,122,0,18,107,0,20,0,0,1,0,7,1,1,
-1,0,5,105,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,122,0,18,105,0,59,120,120,120,0,20,
-0,0,1,0,7,1,1,1,0,9,102,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,122,0,18,102,0,59,
-120,120,120,0,20,0,0,1,0,7,1,1,1,0,1,98,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,122,
-0,18,98,0,59,120,120,120,0,20,0,0,1,0,8,1,1,1,0,5,120,0,0,1,1,0,5,121,0,0,1,1,0,5,122,0,0,1,1,0,5,
-119,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,0,18,120,0,20,0,9,18,95,95,114,101,116,86,97,
-108,0,59,121,0,18,121,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,122,0,18,122,0,20,0,9,18,95,95,
-114,101,116,86,97,108,0,59,119,0,18,119,0,20,0,0,1,0,8,1,1,1,0,5,105,0,0,0,1,9,18,95,95,114,101,
-116,86,97,108,0,18,105,0,59,120,120,120,120,0,20,0,0,1,0,8,1,1,1,0,9,102,0,0,0,1,4,102,108,111,97,
-116,95,116,111,95,105,110,116,0,18,95,95,114,101,116,86,97,108,0,0,18,102,0,59,120,120,120,120,0,0,
-0,0,1,0,8,1,1,1,0,1,98,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,18,98,0,59,120,120,120,120,0,20,
-0,0,1,0,2,1,1,1,0,1,98,49,0,0,1,1,0,1,98,50,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,0,18,
-98,49,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,121,0,18,98,50,0,20,0,0,1,0,2,1,1,1,0,1,98,0,0,
-0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,0,18,98,0,59,120,120,0,20,0,0,1,0,2,1,1,1,0,9,
-102,0,0,0,1,3,2,1,10,1,122,101,114,111,0,2,58,118,101,99,50,0,17,48,0,48,0,0,0,17,48,0,48,0,0,0,0,
-0,0,4,118,101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,59,120,121,0,0,18,102,0,59,
-120,120,0,0,18,122,101,114,111,0,0,0,0,1,0,2,1,1,1,0,5,105,0,0,0,1,3,2,1,6,1,122,101,114,111,0,2,
-58,105,118,101,99,50,0,16,8,48,0,0,16,8,48,0,0,0,0,0,4,118,101,99,52,95,115,101,113,0,18,95,95,114,
-101,116,86,97,108,0,59,120,121,0,0,18,105,0,59,120,120,0,0,18,122,101,114,111,0,0,0,0,1,0,2,1,1,1,
-0,10,118,0,0,0,1,3,2,1,10,1,122,101,114,111,0,2,58,118,101,99,50,0,17,48,0,48,0,0,0,17,48,0,48,0,0,
-0,0,0,0,4,118,101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,59,120,121,0,0,18,118,0,
-0,18,122,101,114,111,0,0,0,0,1,0,2,1,1,1,0,6,118,0,0,0,1,3,2,1,6,1,122,101,114,111,0,2,58,105,118,
-101,99,50,0,16,8,48,0,0,16,8,48,0,0,0,0,0,4,118,101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,
-97,108,0,59,120,121,0,0,18,118,0,0,18,122,101,114,111,0,0,0,0,1,0,3,1,1,1,0,1,98,49,0,0,1,1,0,1,98,
-50,0,0,1,1,0,1,98,51,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,0,18,98,49,0,20,0,9,18,95,
-95,114,101,116,86,97,108,0,59,121,0,18,98,50,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,122,0,18,
-98,51,0,20,0,0,1,0,3,1,1,1,0,1,98,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,122,0,18,
-98,0,59,120,120,120,0,20,0,0,1,0,3,1,1,1,0,9,102,0,0,0,1,3,2,1,11,1,122,101,114,111,0,2,58,118,101,
-99,51,0,17,48,0,48,0,0,0,17,48,0,48,0,0,0,17,48,0,48,0,0,0,0,0,0,4,118,101,99,52,95,115,101,113,0,
-18,95,95,114,101,116,86,97,108,0,59,120,121,122,0,0,18,102,0,59,120,120,120,0,0,18,122,101,114,111,
-0,0,0,0,1,0,3,1,1,1,0,5,105,0,0,0,1,3,2,1,7,1,122,101,114,111,0,2,58,105,118,101,99,51,0,16,8,48,0,
-0,16,8,48,0,0,16,8,48,0,0,0,0,0,4,118,101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,
-59,120,121,122,0,0,18,105,0,59,120,120,120,0,0,18,122,101,114,111,0,0,0,0,1,0,3,1,1,1,0,11,118,0,0,
-0,1,3,2,1,11,1,122,101,114,111,0,2,58,118,101,99,51,0,17,48,0,48,0,0,0,17,48,0,48,0,0,0,17,48,0,48,
-0,0,0,0,0,0,4,118,101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,59,120,121,122,0,0,
-18,118,0,0,18,122,101,114,111,0,0,0,0,1,0,3,1,1,1,0,7,118,0,0,0,1,3,2,1,7,1,122,101,114,111,0,2,58,
-105,118,101,99,51,0,16,8,48,0,0,16,8,48,0,0,16,8,48,0,0,0,0,0,4,118,101,99,52,95,115,101,113,0,18,
-95,95,114,101,116,86,97,108,0,59,120,121,122,0,0,18,118,0,0,18,122,101,114,111,0,0,0,0,1,0,4,1,1,1,
-0,1,98,49,0,0,1,1,0,1,98,50,0,0,1,1,0,1,98,51,0,0,1,1,0,1,98,52,0,0,0,1,9,18,95,95,114,101,116,86,
-97,108,0,59,120,0,18,98,49,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,121,0,18,98,50,0,20,0,9,18,
-95,95,114,101,116,86,97,108,0,59,122,0,18,98,51,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,119,0,
-18,98,52,0,20,0,0,1,0,4,1,1,1,0,1,98,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,59,120,121,122,119,
-0,18,98,0,59,120,120,120,120,0,20,0,0,1,0,4,1,1,1,0,9,102,0,0,0,1,3,2,1,12,1,122,101,114,111,0,2,
-58,118,101,99,52,0,17,48,0,48,0,0,0,17,48,0,48,0,0,0,17,48,0,48,0,0,0,17,48,0,48,0,0,0,0,0,0,4,118,
-101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,0,18,102,0,59,120,120,120,120,0,0,18,
-122,101,114,111,0,0,0,0,1,0,4,1,1,1,0,5,105,0,0,0,1,3,2,1,8,1,122,101,114,111,0,2,58,105,118,101,
-99,52,0,16,8,48,0,0,16,8,48,0,0,16,8,48,0,0,16,8,48,0,0,0,0,0,4,118,101,99,52,95,115,101,113,0,18,
-95,95,114,101,116,86,97,108,0,0,18,105,0,59,120,120,120,120,0,0,18,122,101,114,111,0,0,0,0,1,0,4,1,
-1,1,0,12,118,0,0,0,1,3,2,1,12,1,122,101,114,111,0,2,58,118,101,99,52,0,17,48,0,48,0,0,0,17,48,0,48,
-0,0,0,17,48,0,48,0,0,0,17,48,0,48,0,0,0,0,0,0,4,118,101,99,52,95,115,101,113,0,18,95,95,114,101,
-116,86,97,108,0,0,18,118,0,0,18,122,101,114,111,0,0,0,0,1,0,4,1,1,1,0,8,118,0,0,0,1,3,2,1,8,1,122,
-101,114,111,0,2,58,105,118,101,99,52,0,16,8,48,0,0,16,8,48,0,0,16,8,48,0,0,16,8,48,0,0,0,0,0,4,118,
-101,99,52,95,115,101,113,0,18,95,95,114,101,116,86,97,108,0,0,18,118,0,0,18,122,101,114,111,0,0,0,
-0,1,0,13,1,1,1,0,9,109,48,48,0,0,1,1,0,9,109,49,48,0,0,1,1,0,9,109,48,49,0,0,1,1,0,9,109,49,49,0,0,
-0,1,9,18,95,95,114,101,116,86,97,108,0,16,8,48,0,57,59,120,0,18,109,48,48,0,20,0,9,18,95,95,114,
-101,116,86,97,108,0,16,8,48,0,57,59,121,0,18,109,49,48,0,20,0,9,18,95,95,114,101,116,86,97,108,0,
-16,10,49,0,57,59,120,0,18,109,48,49,0,20,0,9,18,95,95,114,101,116,86,97,108,0,16,10,49,0,57,59,121,
-0,18,109,49,49,0,20,0,0,1,0,13,1,1,1,0,9,102,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,16,8,48,0,
-57,59,120,0,18,102,0,20,0,9,18,95,95,114,101,116,86,97,108,0,16,8,48,0,57,59,121,0,17,48,0,48,0,0,
-20,0,9,18,95,95,114,101,116,86,97,108,0,16,10,49,0,57,59,120,0,17,48,0,48,0,0,20,0,9,18,95,95,114,
-101,116,86,97,108,0,16,10,49,0,57,59,121,0,18,102,0,20,0,0,1,0,13,1,1,1,0,5,105,0,0,0,1,8,58,109,
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+0,0,0,1,0,0,2,4,1,0,2,7,118,0,0,1,1,0,5,97,0,0,0,1,9,18,118,0,59,120,0,18,97,0,24,0,9,18,118,0,59,
+121,0,18,97,0,24,0,9,18,118,0,59,122,0,18,97,0,24,0,0,1,0,0,2,1,1,0,2,8,118,0,0,1,1,0,5,97,0,0,0,1,
+4,118,101,99,52,95,97,100,100,0,18,118,0,0,18,118,0,0,18,97,0,59,120,120,120,120,0,0,0,0,1,0,0,2,2,
+1,0,2,8,118,0,0,1,1,0,5,97,0,0,0,1,4,118,101,99,52,95,115,117,98,116,114,97,99,116,0,18,118,0,0,18,
+118,0,0,18,97,0,59,120,120,120,120,0,0,0,0,1,0,0,2,3,1,0,2,8,118,0,0,1,1,0,5,97,0,0,0,1,4,118,101,
 99,52,95,109,117,108,116,105,112,108,121,0,18,118,0,0,18,118,0,0,18,97,0,59,120,120,120,120,0,0,0,
-0,1,0,0,2,4,1,0,2,12,118,0,0,1,1,0,9,97,0,0,0,1,3,2,0,9,1,105,110,118,65,0,0,0,4,102,108,111,97,
-116,95,114,99,112,0,18,105,110,118,65,0,0,18,97,0,0,0,4,118,101,99,52,95,109,117,108,116,105,112,
-108,121,0,18,118,0,0,18,118,0,0,18,97,0,59,120,120,120,120,0,0,0,0,1,0,13,2,26,1,1,0,13,109,0,0,1,
-1,0,13,110,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,16,8,48,0,57,18,109,0,16,8,48,0,57,18,110,0,
-16,8,48,0,57,46,20,0,9,18,95,95,114,101,116,86,97,108,0,16,10,49,0,57,18,109,0,16,10,49,0,57,18,
-110,0,16,10,49,0,57,46,20,0,0,1,0,13,2,27,1,1,0,13,109,0,0,1,1,0,13,110,0,0,0,1,9,18,95,95,114,101,
-116,86,97,108,0,16,8,48,0,57,18,109,0,16,8,48,0,57,18,110,0,16,8,48,0,57,47,20,0,9,18,95,95,114,
-101,116,86,97,108,0,16,10,49,0,57,18,109,0,16,10,49,0,57,18,110,0,16,10,49,0,57,47,20,0,0,1,0,13,2,
-21,1,1,0,13,109,0,0,1,1,0,13,110,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,16,8,48,0,57,18,109,0,
-16,8,48,0,57,18,110,0,16,8,48,0,57,59,120,120,0,48,18,109,0,16,10,49,0,57,18,110,0,16,8,48,0,57,59,
-121,121,0,48,46,20,0,9,18,95,95,114,101,116,86,97,108,0,16,10,49,0,57,18,109,0,16,8,48,0,57,18,110,
-0,16,10,49,0,57,59,120,120,0,48,18,109,0,16,10,49,0,57,18,110,0,16,10,49,0,57,59,121,121,0,48,46,
-20,0,0,1,0,13,2,22,1,1,0,13,109,0,0,1,1,0,13,110,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,16,8,
-48,0,57,18,109,0,16,8,48,0,57,18,110,0,16,8,48,0,57,49,20,0,9,18,95,95,114,101,116,86,97,108,0,16,
-10,49,0,57,18,109,0,16,10,49,0,57,18,110,0,16,10,49,0,57,49,20,0,0,1,0,14,2,26,1,1,0,14,109,0,0,1,
-1,0,14,110,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,16,8,48,0,57,18,109,0,16,8,48,0,57,18,110,0,
-16,8,48,0,57,46,20,0,9,18,95,95,114,101,116,86,97,108,0,16,10,49,0,57,18,109,0,16,10,49,0,57,18,
-110,0,16,10,49,0,57,46,20,0,9,18,95,95,114,101,116,86,97,108,0,16,10,50,0,57,18,109,0,16,10,50,0,
-57,18,110,0,16,10,50,0,57,46,20,0,0,1,0,14,2,27,1,1,0,14,109,0,0,1,1,0,14,110,0,0,0,1,9,18,95,95,
+0,1,0,0,2,4,1,0,2,8,118,0,0,1,1,0,5,97,0,0,0,1,9,18,118,0,59,120,0,18,97,0,24,0,9,18,118,0,59,121,
+0,18,97,0,24,0,9,18,118,0,59,122,0,18,97,0,24,0,9,18,118,0,59,119,0,18,97,0,24,0,0,1,0,0,2,1,1,0,2,
+10,118,0,0,1,1,0,9,97,0,0,0,1,4,118,101,99,52,95,97,100,100,0,18,118,0,59,120,121,0,0,18,118,0,0,
+18,97,0,59,120,120,0,0,0,0,1,0,0,2,2,1,0,2,10,118,0,0,1,1,0,9,97,0,0,0,1,4,118,101,99,52,95,115,
+117,98,116,114,97,99,116,0,18,118,0,59,120,121,0,0,18,118,0,0,18,97,0,59,120,120,0,0,0,0,1,0,0,2,3,
+1,0,2,10,118,0,0,1,1,0,9,97,0,0,0,1,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,18,118,0,
+59,120,121,0,0,18,118,0,0,18,97,0,59,120,120,0,0,0,0,1,0,0,2,4,1,0,2,10,118,0,0,1,1,0,9,97,0,0,0,1,
+3,2,0,9,1,105,110,118,65,0,0,0,4,102,108,111,97,116,95,114,99,112,0,18,105,110,118,65,0,0,18,97,0,
+0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,18,118,0,59,120,121,0,0,18,118,0,59,120,
+121,0,0,18,105,110,118,65,0,59,120,120,0,0,0,0,1,0,0,2,1,1,0,2,11,118,0,0,1,1,0,9,97,0,0,0,1,4,118,
+101,99,52,95,97,100,100,0,18,118,0,59,120,121,122,0,0,18,118,0,0,18,97,0,59,120,120,120,0,0,0,0,1,
+0,0,2,2,1,0,2,11,118,0,0,1,1,0,9,97,0,0,0,1,4,118,101,99,52,95,115,117,98,116,114,97,99,116,0,18,
+118,0,59,120,121,122,0,0,18,118,0,0,18,97,0,59,120,120,120,0,0,0,0,1,0,0,2,3,1,0,2,11,118,0,0,1,1,
+0,9,97,0,0,0,1,4,118,101,99,52,95,109,117,108,116,105,112,108,121,0,18,118,0,59,120,121,122,0,0,18,
+118,0,0,18,97,0,59,120,120,120,0,0,0,0,1,0,0,2,4,1,0,2,11,118,0,0,1,1,0,9,97,0,0,0,1,3,2,0,9,1,105,
+110,118,65,0,0,0,4,102,108,111,97,116,95,114,99,112,0,18,105,110,118,65,0,0,18,97,0,0,0,4,118,101,
+99,52,95,109,117,108,116,105,112,108,121,0,18,118,0,59,120,121,122,0,0,18,118,0,59,120,121,122,0,0,
+18,105,110,118,65,0,59,120,120,120,0,0,0,0,1,0,0,2,1,1,0,2,12,118,0,0,1,1,0,9,97,0,0,0,1,4,118,101,
+99,52,95,97,100,100,0,18,118,0,0,18,118,0,0,18,97,0,59,120,120,120,120,0,0,0,0,1,0,0,2,2,1,0,2,12,
+118,0,0,1,1,0,9,97,0,0,0,1,4,118,101,99,52,95,115,117,98,116,114,97,99,116,0,18,118,0,0,18,118,0,0,
+18,97,0,59,120,120,120,120,0,0,0,0,1,0,0,2,3,1,0,2,12,118,0,0,1,1,0,9,97,0,0,0,1,4,118,101,99,52,
+95,109,117,108,116,105,112,108,121,0,18,118,0,0,18,118,0,0,18,97,0,59,120,120,120,120,0,0,0,0,1,0,
+0,2,4,1,0,2,12,118,0,0,1,1,0,9,97,0,0,0,1,3,2,0,9,1,105,110,118,65,0,0,0,4,102,108,111,97,116,95,
+114,99,112,0,18,105,110,118,65,0,0,18,97,0,0,0,4,118,101,99,52,95,109,117,108,116,105,112,108,121,
+0,18,118,0,0,18,118,0,0,18,105,110,118,65,0,59,120,120,120,120,0,0,0,0,1,0,13,2,26,1,1,0,13,109,0,
+0,1,1,0,13,110,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,16,8,48,0,57,18,109,0,16,8,48,0,57,18,
+110,0,16,8,48,0,57,46,20,0,9,18,95,95,114,101,116,86,97,108,0,16,10,49,0,57,18,109,0,16,10,49,0,57,
+18,110,0,16,10,49,0,57,46,20,0,0,1,0,13,2,27,1,1,0,13,109,0,0,1,1,0,13,110,0,0,0,1,9,18,95,95,114,
+101,116,86,97,108,0,16,8,48,0,57,18,109,0,16,8,48,0,57,18,110,0,16,8,48,0,57,47,20,0,9,18,95,95,
+114,101,116,86,97,108,0,16,10,49,0,57,18,109,0,16,10,49,0,57,18,110,0,16,10,49,0,57,47,20,0,0,1,0,
+13,2,21,1,1,0,13,109,0,0,1,1,0,13,110,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,16,8,48,0,57,18,
+109,0,16,8,48,0,57,18,110,0,16,8,48,0,57,59,120,120,0,48,18,109,0,16,10,49,0,57,18,110,0,16,8,48,0,
+57,59,121,121,0,48,46,20,0,9,18,95,95,114,101,116,86,97,108,0,16,10,49,0,57,18,109,0,16,8,48,0,57,
+18,110,0,16,10,49,0,57,59,120,120,0,48,18,109,0,16,10,49,0,57,18,110,0,16,10,49,0,57,59,121,121,0,
+48,46,20,0,0,1,0,13,2,22,1,1,0,13,109,0,0,1,1,0,13,110,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,
+16,8,48,0,57,18,109,0,16,8,48,0,57,18,110,0,16,8,48,0,57,49,20,0,9,18,95,95,114,101,116,86,97,108,
+0,16,10,49,0,57,18,109,0,16,10,49,0,57,18,110,0,16,10,49,0,57,49,20,0,0,1,0,14,2,26,1,1,0,14,109,0,
+0,1,1,0,14,110,0,0,0,1,9,18,95,95,114,101,116,86,97,108,0,16,8,48,0,57,18,109,0,16,8,48,0,57,18,
+110,0,16,8,48,0,57,46,20,0,9,18,95,95,114,101,116,86,97,108,0,16,10,49,0,57,18,109,0,16,10,49,0,57,
+18,110,0,16,10,49,0,57,46,20,0,9,18,95,95,114,101,116,86,97,108,0,16,10,50,0,57,18,109,0,16,10,50,
+0,57,18,110,0,16,10,50,0,57,46,20,0,0,1,0,14,2,27,1,1,0,14,109,0,0,1,1,0,14,110,0,0,0,1,9,18,95,95,
 114,101,116,86,97,108,0,16,8,48,0,57,18,109,0,16,8,48,0,57,18,110,0,16,8,48,0,57,47,20,0,9,18,95,
 95,114,101,116,86,97,108,0,16,10,49,0,57,18,109,0,16,10,49,0,57,18,110,0,16,10,49,0,57,47,20,0,9,
 18,95,95,114,101,116,86,97,108,0,16,10,50,0,57,18,109,0,16,10,50,0,57,18,110,0,16,10,50,0,57,47,20,
diff --git a/src/mesa/shader/slang/library/slang_shader.syn b/src/mesa/shader/slang/library/slang_shader.syn
index 1764d1ae68..52a792ad17 100644
--- a/src/mesa/shader/slang/library/slang_shader.syn
+++ b/src/mesa/shader/slang/library/slang_shader.syn
@@ -51,10 +51,17 @@
 /* revision number - increment after each change affecting emitted output */
 .emtcode REVISION                                   3
 
-/* external declaration */
+/* external declaration (or precision or invariant stmt) */
 .emtcode EXTERNAL_NULL                              0
 .emtcode EXTERNAL_FUNCTION_DEFINITION               1
 .emtcode EXTERNAL_DECLARATION                       2
+.emtcode DEFAULT_PRECISION                          3
+.emtcode INVARIANT_STMT                             4
+
+/* precision */
+.emtcode PRECISION_LOW                              0
+.emtcode PRECISION_MEDIUM                           1
+.emtcode PRECISION_HIGH                             2
 
 /* declaration */
 .emtcode DECLARATION_FUNCTION_PROTOTYPE             1
@@ -240,6 +247,9 @@
 .errtext LBRACE_EXPECTED                            "2003: '{' expected but '$err_token$' found."
 .errtext LPAREN_EXPECTED                            "2004: '(' expected but '$err_token$' found."
 .errtext RPAREN_EXPECTED                            "2005: ')' expected but '$err_token$' found."
+.errtext INVALID_PRECISION                          "2006: Invalid precision specifier '$err_token$'."
+.errtext INVALID_PRECISION_TYPE                     "2007: Invalid precision type '$err_token$'."
+
 
 /* tells whether the shader that is being parsed is a built-in shader or not */
 /*   0 - normal behaviour */
@@ -1226,23 +1236,70 @@ asm_argument
 var_with_field
     variable_identifier .and dot .and field_selection .emit OP_FIELD;
 
+
 /*
-    <translation_unit>                  ::= <external_declaration>
-                                          | <translation_unit> <external_declaration>
-*/
+ *  <translation_unit>                  ::= <external_declaration>
+ *                                        | <translation_unit> <external_declaration>
+ */
 translation_unit
     optional_space .emit REVISION .and external_declaration .error INVALID_EXTERNAL_DECLARATION .and
     .loop external_declaration .and optional_space .and
     '\0' .error INVALID_EXTERNAL_DECLARATION .emit EXTERNAL_NULL;
 
+
 /*
-    <external_declaration>              ::= <function_definition>
-                                          | <declaration>
-*/
+ *  <external_declaration>              ::= <function_definition>
+ *                                        | <declaration>
+ */
 external_declaration
+    precision_stmt .emit DEFAULT_PRECISION .or
+    invariant_stmt .emit INVARIANT_STMT .or
     function_definition .emit EXTERNAL_FUNCTION_DEFINITION .or
     declaration .emit EXTERNAL_DECLARATION;
 
+
+/*
+ * <precision_stmt>    ::= "precision" <precision> <prectype>
+ */
+precision_stmt
+    "precision" .and space .and precision .error INVALID_PRECISION .and space .and prectype .error INVALID_PRECISION_TYPE .and semicolon;
+
+/*
+ * <precision>           ::= "lowp"
+ *                         | "mediump"
+ *                         | "highp"
+ */
+precision
+    "lowp" .emit PRECISION_LOW .or
+    "mediump" .emit PRECISION_MEDIUM .or
+    "highp" .emit PRECISION_HIGH;
+
+/*
+ * <prectype> ::= "int"
+ *              | "float"
+ *              | "a sampler type"
+ */
+prectype
+    "int" .emit TYPE_SPECIFIER_INT .or
+    "float" .emit TYPE_SPECIFIER_FLOAT .or
+    "sampler1D" .emit TYPE_SPECIFIER_SAMPLER1D .or
+    "sampler2D" .emit TYPE_SPECIFIER_SAMPLER2D .or
+    "sampler3D" .emit TYPE_SPECIFIER_SAMPLER3D .or
+    "samplerCube" .emit TYPE_SPECIFIER_SAMPLERCUBE .or
+    "sampler1DShadow" .emit TYPE_SPECIFIER_SAMPLER1DSHADOW .or
+    "sampler2DShadow" .emit TYPE_SPECIFIER_SAMPLER2DSHADOW .or
+    "sampler2DRect" .emit TYPE_SPECIFIER_SAMPLER2DRECT .or
+    "sampler2DRectShadow" .emit TYPE_SPECIFIER_SAMPLER2DRECTSHADOW;
+
+
+/*
+ * <invariant_stmt>    ::= "invariant" identifier;
+ */
+invariant_stmt
+    "invariant" .and space .and identifier .and semicolon;
+
+
+
 /*
     <function_definition>               :: <function_prototype> <compound_statement_no_new_scope>
 */
diff --git a/src/mesa/shader/slang/library/slang_shader_syn.h b/src/mesa/shader/slang/library/slang_shader_syn.h
index fe37adcac4..82909d9423 100644
--- a/src/mesa/shader/slang/library/slang_shader_syn.h
+++ b/src/mesa/shader/slang/library/slang_shader_syn.h
@@ -6,6 +6,11 @@
 ".emtcode EXTERNAL_NULL 0\n"
 ".emtcode EXTERNAL_FUNCTION_DEFINITION 1\n"
 ".emtcode EXTERNAL_DECLARATION 2\n"
+".emtcode DEFAULT_PRECISION 3\n"
+".emtcode INVARIANT_STMT 4\n"
+".emtcode PRECISION_LOW 0\n"
+".emtcode PRECISION_MEDIUM 1\n"
+".emtcode PRECISION_HIGH 2\n"
 ".emtcode DECLARATION_FUNCTION_PROTOTYPE 1\n"
 ".emtcode DECLARATION_INIT_DECLARATOR_LIST 2\n"
 ".emtcode FUNCTION_ORDINARY 0\n"
@@ -137,6 +142,8 @@
 ".errtext LBRACE_EXPECTED \"2003: '{' expected but '$err_token$' found.\"\n"
 ".errtext LPAREN_EXPECTED \"2004: '(' expected but '$err_token$' found.\"\n"
 ".errtext RPAREN_EXPECTED \"2005: ')' expected but '$err_token$' found.\"\n"
+".errtext INVALID_PRECISION \"2006: Invalid precision specifier '$err_token$'.\"\n"
+".errtext INVALID_PRECISION_TYPE \"2007: Invalid precision type '$err_token$'.\"\n"
 ".regbyte parsing_builtin 0\n"
 ".regbyte shader_type 0\n"
 "variable_identifier\n"
@@ -597,8 +604,29 @@
 " .loop external_declaration .and optional_space .and\n"
 " '\\0' .error INVALID_EXTERNAL_DECLARATION .emit EXTERNAL_NULL;\n"
 "external_declaration\n"
+" precision_stmt .emit DEFAULT_PRECISION .or\n"
+" invariant_stmt .emit INVARIANT_STMT .or\n"
 " function_definition .emit EXTERNAL_FUNCTION_DEFINITION .or\n"
 " declaration .emit EXTERNAL_DECLARATION;\n"
+"precision_stmt\n"
+" \"precision\" .and space .and precision .error INVALID_PRECISION .and space .and prectype .error INVALID_PRECISION_TYPE .and semicolon;\n"
+"precision\n"
+" \"lowp\" .emit PRECISION_LOW .or\n"
+" \"mediump\" .emit PRECISION_MEDIUM .or\n"
+" \"highp\" .emit PRECISION_HIGH;\n"
+"prectype\n"
+" \"int\" .emit TYPE_SPECIFIER_INT .or\n"
+" \"float\" .emit TYPE_SPECIFIER_FLOAT .or\n"
+" \"sampler1D\" .emit TYPE_SPECIFIER_SAMPLER1D .or\n"
+" \"sampler2D\" .emit TYPE_SPECIFIER_SAMPLER2D .or\n"
+" \"sampler3D\" .emit TYPE_SPECIFIER_SAMPLER3D .or\n"
+" \"samplerCube\" .emit TYPE_SPECIFIER_SAMPLERCUBE .or\n"
+" \"sampler1DShadow\" .emit TYPE_SPECIFIER_SAMPLER1DSHADOW .or\n"
+" \"sampler2DShadow\" .emit TYPE_SPECIFIER_SAMPLER2DSHADOW .or\n"
+" \"sampler2DRect\" .emit TYPE_SPECIFIER_SAMPLER2DRECT .or\n"
+" \"sampler2DRectShadow\" .emit TYPE_SPECIFIER_SAMPLER2DRECTSHADOW;\n"
+"invariant_stmt\n"
+" \"invariant\" .and space .and identifier .and semicolon;\n"
 "function_definition\n"
 " function_prototype .and compound_statement_no_new_scope;\n"
 "digit_oct\n"
diff --git a/src/mesa/shader/slang/slang_builtin.c b/src/mesa/shader/slang/slang_builtin.c
index f0f59aa87a..ed6de40d4b 100644
--- a/src/mesa/shader/slang/slang_builtin.c
+++ b/src/mesa/shader/slang/slang_builtin.c
@@ -35,6 +35,7 @@
 #include "shader/prog_parameter.h"
 #include "shader/prog_statevars.h"
 #include "shader/slang/slang_ir.h"
+#include "shader/slang/slang_emit.h"
 #include "shader/slang/slang_builtin.h"
 
 
@@ -438,8 +439,11 @@ _slang_alloc_statevar(slang_ir_node *n,
    pos = lookup_statevar(var, index1, index2, field, &swizzle, paramList);
    assert(pos >= 0);
    if (pos >= 0) {
+      /* newly resolved storage for the statevar/constant/uniform */
+      n0->Store->File = PROGRAM_STATE_VAR;
       n0->Store->Index = pos;
       n0->Store->Swizzle = swizzle;
+      n0->Store->Parent = NULL;
    }
    return pos;
 }
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index af45dfb2e8..d4bf99f78f 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -43,6 +43,7 @@
 #include "shader/program.h"
 #include "shader/prog_instruction.h"
 #include "shader/prog_parameter.h"
+#include "shader/prog_print.h"
 #include "shader/prog_statevars.h"
 #include "slang_typeinfo.h"
 #include "slang_codegen.h"
@@ -243,7 +244,12 @@ _slang_attach_storage(slang_ir_node *n, slang_variable *var)
       }
       else {
          /* alloc new storage info */
-         n->Store = _slang_new_ir_storage(PROGRAM_UNDEFINED, -1, -5);
+         n->Store = _slang_new_ir_storage(PROGRAM_UNDEFINED, -7, -5);
+#if 0
+         printf("%s var=%s Store=%p Size=%d\n", __FUNCTION__,
+                (char*) var->a_name,
+                (void*) n->Store, n->Store->Size);
+#endif
          if (n->Var)
             n->Var->aux = n->Store;
          assert(n->Var->aux);
@@ -651,11 +657,16 @@ new_var(slang_assemble_ctx *A, slang_operation *oper, slang_atom name)
    if (!var)
       return NULL;
 
+   assert(var->declared);
+
    assert(!oper->var || oper->var == var);
 
    n = new_node0(IR_VAR);
    if (n) {
       _slang_attach_storage(n, var);
+      /*
+      printf("new_var %s store=%p\n", (char*)name, (void*) n->Store);
+      */
    }
    return n;
 }
@@ -925,31 +936,6 @@ slang_substitute(slang_assemble_ctx *A, slang_operation *oper,
 
 
 /**
- * Recursively traverse 'oper', replacing occurances of 'oldScope' with
- * 'newScope' in the oper->locals->outer_scope filed.
- *
- * This is used after function inlining to update the scoping of
- * the newly copied/inlined code so that vars are found in the new,
- * inlined scope and not in the original function code.
- */
-static void
-slang_replace_scope(slang_operation *oper,
-                    slang_variable_scope *oldScope,
-                    slang_variable_scope *newScope)
-{
-   GLuint i;
-   if (oper->locals != newScope &&
-       oper->locals->outer_scope == oldScope) {
-      oper->locals->outer_scope = newScope;
-   }
-   for (i = 0; i < oper->num_children; i++) {
-      slang_replace_scope(&oper->children[i], oldScope, newScope);
-   }
-}
-
-
-
-/**
  * Produce inline code for a call to an assembly instruction.
  * This is typically used to compile a call to a built-in function like this:
  *
@@ -958,6 +944,18 @@ slang_replace_scope(slang_operation *oper,
  *    __asm vec4_lrp __retVal, a, y, x;
  * }
  *
+ *
+ * A call to
+ *     r = mix(p1, p2, p3);
+ *
+ * Becomes:
+ *
+ *              mov
+ *             /   \
+ *            r   vec4_lrp
+ *                 /  |  \
+ *                p3  p2  p1
+ *
  * We basically translate a SLANG_OPER_CALL into a SLANG_OPER_ASM.
  */
 static slang_operation *
@@ -997,10 +995,10 @@ slang_inline_asm_function(slang_assemble_ctx *A,
    slang_operation_copy(inlined, &fun->body->children[0]);
    if (haveRetValue) {
       /* get rid of the __retVal child */
-      for (i = 0; i < numArgs; i++) {
+      inlined->num_children--;
+      for (i = 0; i < inlined->num_children; i++) {
          inlined->children[i] = inlined->children[i + 1];
       }
-      inlined->num_children--;
    }
 
    /* now do formal->actual substitutions */
@@ -1235,6 +1233,16 @@ slang_inline_function_call(slang_assemble_ctx * A, slang_function *fun,
       }
    }
 
+   /* Now add copies of the function's local vars to the new variable scope */
+   for (i = totalArgs; i < fun->parameters->num_variables; i++) {
+      slang_variable *p = fun->parameters->variables[i];
+      slang_variable *pCopy = slang_variable_scope_grow(inlined->locals);
+      pCopy->type = p->type;
+      pCopy->a_name = p->a_name;
+      pCopy->array_len = p->array_len;
+   }
+
+
    /* New epilog statements:
     * 1. Create end of function label to jump to from return statements.
     * 2. Copy the 'out' parameter vars
@@ -1402,6 +1410,27 @@ slang_find_asm_info(const char *name)
 
 
 /**
+ * Return the default swizzle mask for accessing a variable of the
+ * given size (in floats).  If size = 1, comp is used to identify
+ * which component [0..3] of the register holds the variable.
+ */
+static GLuint
+_slang_var_swizzle(GLint size, GLint comp)
+{
+   switch (size) {
+   case 1:
+      return MAKE_SWIZZLE4(comp, comp, comp, comp);
+   case 2:
+      return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_NIL, SWIZZLE_NIL);
+   case 3:
+      return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_NIL);
+   default:
+      return SWIZZLE_XYZW;
+   }
+}
+
+
+/**
  * Some write-masked assignments are simple, but others are hard.
  * Simple example:
  *    vec3 v;
@@ -1606,13 +1635,13 @@ _slang_gen_asm(slang_assemble_ctx *A, slang_operation *oper,
 
    if (info->NumParams == oper->num_children) {
       /* Storage for result is not specified.
-       * Children[0], [1] are the operands.
+       * Children[0], [1], [2] are the operands.
        */
       firstOperand = 0;
    }
    else {
       /* Storage for result (child[0]) is specified.
-       * Children[1], [2] are the operands.
+       * Children[1], [2], [3] are the operands.
        */
       firstOperand = 1;
    }
@@ -1647,7 +1676,8 @@ _slang_gen_asm(slang_assemble_ctx *A, slang_operation *oper,
       n->Store = get_store(n0);
       n->Writemask = writemask;
 
-      assert(n->Store->File != PROGRAM_UNDEFINED);
+      assert(n->Store->File != PROGRAM_UNDEFINED ||
+             n->Store->Parent);
 
       _slang_free(n0);
    }
@@ -1694,6 +1724,167 @@ _slang_first_function(struct slang_function_scope_ *scope, const char *name)
 }
 
 
+/**
+ * Generate a new slang_function which is a constructor for a user-defined
+ * struct type.
+ */
+static slang_function *
+_slang_make_constructor(slang_assemble_ctx *A, slang_struct *str)
+{
+   const GLint numFields = str->fields->num_variables;
+
+   slang_function *fun = (slang_function *) _mesa_malloc(sizeof(slang_function));
+   if (!fun)
+      return NULL;
+
+   slang_function_construct(fun);
+
+   /* function header (name, return type) */
+   fun->kind = SLANG_FUNC_CONSTRUCTOR;
+   fun->header.a_name = str->a_name;
+   fun->header.type.qualifier = SLANG_QUAL_NONE;
+   fun->header.type.specifier.type = SLANG_SPEC_STRUCT;
+   fun->header.type.specifier._struct = str;
+
+   /* function parameters (= struct's fields) */
+   {
+      GLint i;
+      for (i = 0; i < numFields; i++) {
+         /*
+         printf("Field %d: %s\n", i, (char*) str->fields->variables[i]->a_name);
+         */
+         slang_variable *p = slang_variable_scope_grow(fun->parameters);
+         *p = *str->fields->variables[i];
+      }
+      fun->param_count = fun->parameters->num_variables;
+   }
+
+   /* Add __retVal to params */
+   {
+      slang_variable *p = slang_variable_scope_grow(fun->parameters);
+      slang_atom a_retVal = slang_atom_pool_atom(A->atoms, "__retVal");
+      assert(a_retVal);
+      p->a_name = a_retVal;
+      p->type = fun->header.type;
+      p->type.qualifier = SLANG_QUAL_OUT;
+      fun->param_count++;
+   }
+
+   /* function body is:
+    *    block:
+    *       declare T;
+    *       T.f1 = p1;
+    *       T.f2 = p2;
+    *       ...
+    *       T.fn = pn;
+    *       return T;
+    */
+   {
+      slang_variable *var;
+      GLint i;
+
+      fun->body = slang_operation_new(1);
+      fun->body->type = SLANG_OPER_BLOCK_NO_NEW_SCOPE;
+      fun->body->num_children = numFields + 2;
+      fun->body->children = slang_operation_new(numFields + 2);
+
+      /* create local var 't' */
+      var = slang_variable_scope_grow(fun->parameters);
+      var->a_name = slang_atom_pool_atom(A->atoms, "t");
+      var->type = fun->header.type;
+
+      /* declare t */
+      {
+         slang_operation *decl;
+
+         decl = &fun->body->children[0];
+         decl->type = SLANG_OPER_VARIABLE_DECL;
+         decl->locals = _slang_variable_scope_new(fun->parameters);
+         decl->a_id = var->a_name;
+      }
+
+      /* assign params to fields of t */
+      for (i = 0; i < numFields; i++) {
+         slang_operation *assign = &fun->body->children[1 + i];
+
+         assign->type = SLANG_OPER_ASSIGN;
+         assign->locals = _slang_variable_scope_new(fun->parameters);
+         assign->num_children = 2;
+         assign->children = slang_operation_new(2);
+         
+         {
+            slang_operation *lhs = &assign->children[0];
+
+            lhs->type = SLANG_OPER_FIELD;
+            lhs->locals = _slang_variable_scope_new(fun->parameters);
+            lhs->num_children = 1;
+            lhs->children = slang_operation_new(1);
+            lhs->a_id = str->fields->variables[i]->a_name;
+
+            lhs->children[0].type = SLANG_OPER_IDENTIFIER;
+            lhs->children[0].a_id = var->a_name;
+            lhs->children[0].locals = _slang_variable_scope_new(fun->parameters);
+
+#if 0
+            lhs->children[1].num_children = 1;
+            lhs->children[1].children = slang_operation_new(1);
+            lhs->children[1].children[0].type = SLANG_OPER_IDENTIFIER;
+            lhs->children[1].children[0].a_id = str->fields->variables[i]->a_name;
+            lhs->children[1].children->locals = _slang_variable_scope_new(fun->parameters);
+#endif
+         }
+
+         {
+            slang_operation *rhs = &assign->children[1];
+
+            rhs->type = SLANG_OPER_IDENTIFIER;
+            rhs->locals = _slang_variable_scope_new(fun->parameters);
+            rhs->a_id = str->fields->variables[i]->a_name;
+         }         
+      }
+
+      /* return t; */
+      {
+         slang_operation *ret = &fun->body->children[numFields + 1];
+
+         ret->type = SLANG_OPER_RETURN;
+         ret->locals = _slang_variable_scope_new(fun->parameters);
+         ret->num_children = 1;
+         ret->children = slang_operation_new(1);
+         ret->children[0].type = SLANG_OPER_IDENTIFIER;
+         ret->children[0].a_id = var->a_name;
+         ret->children[0].locals = _slang_variable_scope_new(fun->parameters);
+
+      }
+   }
+   /*
+   slang_print_function(fun, 1);
+   */
+   return fun;
+}
+
+
+/**
+ * Find/create a function (constructor) for the given structure name.
+ */
+static slang_function *
+_slang_locate_struct_constructor(slang_assemble_ctx *A, const char *name)
+{
+   int i;
+   for (i = 0; i < A->space.structs->num_structs; i++) {
+      slang_struct *str = &A->space.structs->structs[i];
+      if (strcmp(name, (const char *) str->a_name) == 0) {
+         /* found a structure type that matches the function name */
+         if (!str->constructor) {
+            /* create the constructor function now */
+            str->constructor = _slang_make_constructor(A, str);
+         }
+         return str->constructor;
+      }
+   }
+   return NULL;
+}
+
 
 /**
  * Assemble a function call, given a particular function name.
@@ -1717,6 +1908,11 @@ _slang_gen_function_call_name(slang_assemble_ctx *A, const char *name,
     */
    fun = _slang_locate_function(A->space.funcs, atom, params, param_count,
 				&A->space, A->atoms, A->log);
+
+   if (!fun) {
+      fun = _slang_locate_struct_constructor(A, name);
+   }
+
    if (!fun) {
       /* A function with exactly the right parameters/types was not found.
        * Try adapting the parameters.
@@ -2084,7 +2280,7 @@ _slang_gen_temporary(GLint size)
    slang_ir_storage *store;
    slang_ir_node *n = NULL;
 
-   store = _slang_new_ir_storage(PROGRAM_TEMPORARY, -1, size);
+   store = _slang_new_ir_storage(PROGRAM_TEMPORARY, -2, size);
    if (store) {
       n = new_node0(IR_VAR_DECL);
       if (n) {
@@ -2105,15 +2301,15 @@ static slang_ir_node *
 _slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var)
 {
    slang_ir_node *n;
+
+   /*assert(!var->declared);*/
+   var->declared = GL_TRUE;
+
    assert(!is_sampler_type(&var->type));
+
    n = new_node0(IR_VAR_DECL);
    if (n) {
       _slang_attach_storage(n, var);
-#if 0
-      printf("%s var %p %s  store=%p\n",
-             __FUNCTION__, (void *) var, (char *) var->a_name,
-             (void *) n->Store);
-#endif
       assert(var->aux);
       assert(n->Store == var->aux);
       assert(n->Store);
@@ -2121,6 +2317,13 @@ _slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var)
 
       n->Store->File = PROGRAM_TEMPORARY;
       n->Store->Size = _slang_sizeof_type_specifier(&n->Var->type.specifier);
+
+#if 0
+      printf("%s var %p %s  store=%p index=%d size=%d\n",
+             __FUNCTION__, (void *) var, (char *) var->a_name,
+             (void *) n->Store, n->Store->Index, n->Store->Size);
+#endif
+
       if (var->array_len > 0) {
          /* this is an array */
          /* round up element size to mult of 4 */
@@ -2129,8 +2332,27 @@ _slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var)
          sz *= var->array_len;
          n->Store->Size = sz;
       }
-      A->program->NumTemporaries++;
+
       assert(n->Store->Size > 0);
+
+      /* setup default swizzle for storing the variable */
+      switch (n->Store->Size) {
+      case 2:
+         n->Store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y,
+                                           SWIZZLE_NIL, SWIZZLE_NIL);
+         break;
+      case 3:
+         n->Store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y,
+                                           SWIZZLE_Z, SWIZZLE_NIL);
+         break;
+      default:
+         /* Note that float-sized vars may be allocated in any x/y/z/w
+          * slot, but that won't be determined until code emit time.
+          */
+         n->Store->Swizzle = SWIZZLE_NOOP;
+      }
+
+      A->program->NumTemporaries++; /* an approximation */
    }
    return n;
 }
@@ -2408,13 +2630,33 @@ _slang_gen_variable(slang_assemble_ctx * A, slang_operation *oper)
 }
 
 
+
+/**
+ * Return the number of components actually named by the swizzle.
+ * Recall that swizzles may have undefined/don't-care values.
+ */
+static GLuint
+swizzle_size(GLuint swizzle)
+{
+   GLuint size = 0, i;
+   for (i = 0; i < 4; i++) {
+      GLuint swz = GET_SWZ(swizzle, i);
+      size += (swz >= 0 && swz <= 3);
+   }
+   return size;
+}
+
+
 static slang_ir_node *
 _slang_gen_swizzle(slang_ir_node *child, GLuint swizzle)
 {
    slang_ir_node *n = new_node1(IR_SWIZZLE, child);
    assert(child);
    if (n) {
-      n->Store = _slang_new_ir_storage(PROGRAM_UNDEFINED, -1, -1);
+      assert(!n->Store);
+      n->Store = _slang_new_ir_storage_relative(0,
+                                                swizzle_size(swizzle),
+                                                child->Store);
       n->Store->Swizzle = swizzle;
    }
    return n;
@@ -2506,7 +2748,7 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper)
  * Generate IR tree for referencing a field in a struct (or basic vector type)
  */
 static slang_ir_node *
-_slang_gen_field(slang_assemble_ctx * A, slang_operation *oper)
+_slang_gen_struct_field(slang_assemble_ctx * A, slang_operation *oper)
 {
    slang_typeinfo ti;
 
@@ -2559,7 +2801,8 @@ _slang_gen_field(slang_assemble_ctx * A, slang_operation *oper)
       /* oper->a_id is the field name */
       slang_ir_node *base, *n;
       slang_typeinfo field_ti;
-      GLint fieldSize, fieldOffset = -1;
+      GLint fieldSize, fieldOffset = -1, swz;
+
       /* type of field */
       slang_typeinfo_construct(&field_ti);
       _slang_typeof_operation(A, oper, &field_ti);
@@ -2584,20 +2827,27 @@ _slang_gen_field(slang_assemble_ctx * A, slang_operation *oper)
       }
 
       n = new_node1(IR_FIELD, base);
-      if (n) {
-         n->Field = (char *) oper->a_id;
-         n->FieldOffset = fieldOffset;
-         assert(n->FieldOffset >= 0);
-         n->Store = _slang_new_ir_storage(base->Store->File,
-                                          base->Store->Index,
-                                          fieldSize);
-      }
-      return n;
+      if (!n)
+         return NULL;
 
-#if 0
-      _mesa_problem(NULL, "glsl structs/fields not supported yet");
-      return NULL;
-#endif
+
+      /* setup the storage info for this node */
+      swz = fieldOffset % 4;
+
+      n->Field = (char *) oper->a_id;
+      n->Store = _slang_new_ir_storage_relative(fieldOffset / 4,
+                                                fieldSize,
+                                                base->Store);
+      if (fieldSize == 1)
+         n->Store->Swizzle = MAKE_SWIZZLE4(swz, swz, swz, swz);
+      else if (fieldSize == 2)
+         n->Store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y,
+                                           SWIZZLE_NIL, SWIZZLE_NIL);
+      else if (fieldSize == 3)
+         n->Store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y,
+                                           SWIZZLE_Z, SWIZZLE_NIL);
+
+      return n;
    }
 }
 
@@ -2606,7 +2856,7 @@ _slang_gen_field(slang_assemble_ctx * A, slang_operation *oper)
  * Gen code for array indexing.
  */
 static slang_ir_node *
-_slang_gen_subscript(slang_assemble_ctx * A, slang_operation *oper)
+_slang_gen_array_element(slang_assemble_ctx * A, slang_operation *oper)
 {
    slang_typeinfo array_ti;
 
@@ -2623,7 +2873,7 @@ _slang_gen_subscript(slang_assemble_ctx * A, slang_operation *oper)
 
       index = (GLint) oper->children[1].literal[0];
       if (oper->children[1].type != SLANG_OPER_LITERAL_INT ||
-          index >= max) {
+          index >= (GLint) max) {
          slang_info_log_error(A->log, "Invalid array index for vector type");
          return NULL;
       }
@@ -2670,21 +2920,24 @@ _slang_gen_subscript(slang_assemble_ctx * A, slang_operation *oper)
       index = _slang_gen_operation(A, &oper->children[1]);
       if (array && index) {
          /* bounds check */
-         if (index->Opcode == IR_FLOAT &&
-             ((int) index->Value[0] < 0 ||
-              (int) index->Value[0] >= arrayLen)) {
-            slang_info_log_error(A->log,
+         GLint constIndex = 0;
+         if (index->Opcode == IR_FLOAT) {
+            constIndex = (int) index->Value[0];
+            if (constIndex < 0 || constIndex >= arrayLen) {
+               slang_info_log_error(A->log,
                                 "Array index out of bounds (index=%d size=%d)",
-                                 (int) index->Value[0], arrayLen);
-            _slang_free_ir_tree(array);
-            _slang_free_ir_tree(index);
-            return NULL;
+                                 constIndex, arrayLen);
+               _slang_free_ir_tree(array);
+               _slang_free_ir_tree(index);
+               return NULL;
+            }
          }
 
          elem = new_node2(IR_ELEMENT, array, index);
-         elem->Store = _slang_new_ir_storage(array->Store->File,
-                                             array->Store->Index,
-                                             elemSize);
+         elem->Store = _slang_new_ir_storage_relative(constIndex,
+                                                      elemSize,
+                                                      array->Store);
+
          /* XXX try to do some array bounds checking here */
          return elem;
       }
@@ -2858,14 +3111,14 @@ _slang_gen_operation(slang_assemble_ctx * A, slang_operation *oper)
       {
 	 slang_ir_node *n;
          assert(oper->num_children == 2);
-	 n = _slang_gen_function_call_name(A, "+=", oper, &oper->children[0]);
+	 n = _slang_gen_function_call_name(A, "+=", oper, NULL);
 	 return n;
       }
    case SLANG_OPER_SUBASSIGN:
       {
 	 slang_ir_node *n;
          assert(oper->num_children == 2);
-	 n = _slang_gen_function_call_name(A, "-=", oper, &oper->children[0]);
+	 n = _slang_gen_function_call_name(A, "-=", oper, NULL);
 	 return n;
       }
       break;
@@ -2873,14 +3126,14 @@ _slang_gen_operation(slang_assemble_ctx * A, slang_operation *oper)
       {
 	 slang_ir_node *n;
          assert(oper->num_children == 2);
-	 n = _slang_gen_function_call_name(A, "*=", oper, &oper->children[0]);
+	 n = _slang_gen_function_call_name(A, "*=", oper, NULL);
 	 return n;
       }
    case SLANG_OPER_DIVASSIGN:
       {
 	 slang_ir_node *n;
          assert(oper->num_children == 2);
-	 n = _slang_gen_function_call_name(A, "/=", oper, &oper->children[0]);
+	 n = _slang_gen_function_call_name(A, "/=", oper, NULL);
 	 return n;
       }
    case SLANG_OPER_LOGICALAND:
@@ -2923,9 +3176,9 @@ _slang_gen_operation(slang_assemble_ctx * A, slang_operation *oper)
    case SLANG_OPER_IF:
       return _slang_gen_if(A, oper);
    case SLANG_OPER_FIELD:
-      return _slang_gen_field(A, oper);
+      return _slang_gen_struct_field(A, oper);
    case SLANG_OPER_SUBSCRIPT:
-      return _slang_gen_subscript(A, oper);
+      return _slang_gen_array_element(A, oper);
    case SLANG_OPER_LITERAL_FLOAT:
       /* fall-through */
    case SLANG_OPER_LITERAL_INT:
@@ -2992,6 +3245,23 @@ _slang_gen_operation(slang_assemble_ctx * A, slang_operation *oper)
 }
 
 
+/**
+ * Compute total size of array give size of element, number of elements.
+ */
+static GLint
+array_size(GLint baseSize, GLint arrayLen)
+{
+   GLint total;
+   if (arrayLen > 1) {
+      /* round up base type to multiple of 4 */
+      total = ((baseSize + 3) & ~0x3) * MAX2(arrayLen, 1);
+   }
+   else {
+      total = baseSize;
+   }
+   return total;
+}
+
 
 /**
  * Called by compiler when a global variable has been parsed/compiled.
@@ -3017,6 +3287,7 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
    int dbg = 0;
    const GLenum datatype = _slang_gltype_from_specifier(&var->type.specifier);
    const GLint texIndex = sampler_to_texture_index(var->type.specifier.type);
+   const GLint size = _slang_sizeof_type_specifier(&var->type.specifier);
 
    if (texIndex != -1) {
       /* This is a texture sampler variable...
@@ -3030,8 +3301,8 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
    }
    else if (var->type.qualifier == SLANG_QUAL_UNIFORM) {
       /* Uniform variable */
-      const GLint size = _slang_sizeof_type_specifier(&var->type.specifier)
-                         * MAX2(var->array_len, 1);
+      const GLint totalSize = array_size(size, var->array_len);
+      const GLuint swizzle = _slang_var_swizzle(totalSize, 0);
       if (prog) {
          /* user-defined uniform */
          if (datatype == GL_NONE) {
@@ -3060,8 +3331,9 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
          }
          else {
             GLint uniformLoc = _mesa_add_uniform(prog->Parameters, varName,
-                                                 size, datatype);
-            store = _slang_new_ir_storage(PROGRAM_UNIFORM, uniformLoc, size);
+                                                 totalSize, datatype);
+            store = _slang_new_ir_storage_swz(PROGRAM_UNIFORM, uniformLoc,
+                                              totalSize, swizzle);
          }
       }
       else {
@@ -3069,34 +3341,40 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
          /* We know it's a uniform, but don't allocate storage unless
           * it's really used.
           */
-         store = _slang_new_ir_storage(PROGRAM_STATE_VAR, -1, size);
+         store = _slang_new_ir_storage_swz(PROGRAM_STATE_VAR, -1,
+                                           totalSize, swizzle);
       }
-      if (dbg) printf("UNIFORM (sz %d) ", size);
+      if (dbg) printf("UNIFORM (sz %d) ", totalSize);
    }
    else if (var->type.qualifier == SLANG_QUAL_VARYING) {
-      const GLint size = 4; /* XXX fix */
       if (prog) {
          /* user-defined varying */
          GLint varyingLoc = _mesa_add_varying(prog->Varying, varName, size);
-         store = _slang_new_ir_storage(PROGRAM_VARYING, varyingLoc, size);
+         GLuint swizzle = _slang_var_swizzle(size, 0);
+         store = _slang_new_ir_storage_swz(PROGRAM_VARYING, varyingLoc,
+                                           size, swizzle);
       }
       else {
          /* pre-defined varying, like gl_Color or gl_TexCoord */
          if (type == SLANG_UNIT_FRAGMENT_BUILTIN) {
+            /* fragment program input */
             GLuint swizzle;
             GLint index = _slang_input_index(varName, GL_FRAGMENT_PROGRAM_ARB,
                                              &swizzle);
             assert(index >= 0);
-            store = _slang_new_ir_storage(PROGRAM_INPUT, index, size);
-            store->Swizzle = swizzle;
             assert(index < FRAG_ATTRIB_MAX);
+            store = _slang_new_ir_storage_swz(PROGRAM_INPUT, index,
+                                              size, swizzle);
          }
          else {
+            /* vertex program output */
             GLint index = _slang_output_index(varName, GL_VERTEX_PROGRAM_ARB);
+            GLuint swizzle = _slang_var_swizzle(size, 0);
             assert(index >= 0);
-            assert(type == SLANG_UNIT_VERTEX_BUILTIN);
-            store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, size);
             assert(index < VERT_RESULT_MAX);
+            assert(type == SLANG_UNIT_VERTEX_BUILTIN);
+            store = _slang_new_ir_storage_swz(PROGRAM_OUTPUT, index,
+                                              size, swizzle);
          }
          if (dbg) printf("V/F ");
       }
@@ -3105,10 +3383,9 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
    else if (var->type.qualifier == SLANG_QUAL_ATTRIBUTE) {
       if (prog) {
          /* user-defined vertex attribute */
-         const GLint size = _slang_sizeof_type_specifier(&var->type.specifier);
          const GLint attr = -1; /* unknown */
          GLint index = _mesa_add_attribute(prog->Attributes, varName,
-                                           size, attr);
+                                           size, datatype, attr);
          assert(index >= 0);
          store = _slang_new_ir_storage(PROGRAM_INPUT,
                                        VERT_ATTRIB_GENERIC0 + index, size);
@@ -3118,10 +3395,8 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
          GLuint swizzle;
          GLint index = _slang_input_index(varName, GL_VERTEX_PROGRAM_ARB,
                                           &swizzle);
-         GLint size = 4; /* XXX? */
          assert(index >= 0);
-         store = _slang_new_ir_storage(PROGRAM_INPUT, index, size);
-         store->Swizzle = swizzle;
+         store = _slang_new_ir_storage_swz(PROGRAM_INPUT, index, size, swizzle);
       }
       if (dbg) printf("ATTRIB ");
    }
@@ -3129,28 +3404,24 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
       GLuint swizzle = SWIZZLE_XYZW; /* silence compiler warning */
       GLint index = _slang_input_index(varName, GL_FRAGMENT_PROGRAM_ARB,
                                        &swizzle);
-      GLint size = 4; /* XXX? */
-      store = _slang_new_ir_storage(PROGRAM_INPUT, index, size);
-      store->Swizzle = swizzle;
+      store = _slang_new_ir_storage_swz(PROGRAM_INPUT, index, size, swizzle);
       if (dbg) printf("INPUT ");
    }
    else if (var->type.qualifier == SLANG_QUAL_FIXEDOUTPUT) {
       if (type == SLANG_UNIT_VERTEX_BUILTIN) {
          GLint index = _slang_output_index(varName, GL_VERTEX_PROGRAM_ARB);
-         GLint size = 4; /* XXX? */
          store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, size);
       }
       else {
          GLint index = _slang_output_index(varName, GL_FRAGMENT_PROGRAM_ARB);
-         GLint size = 4; /* XXX? */
+         GLint specialSize = 4; /* treat all fragment outputs as float[4] */
          assert(type == SLANG_UNIT_FRAGMENT_BUILTIN);
-         store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, size);
+         store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, specialSize);
       }
       if (dbg) printf("OUTPUT ");
    }
    else if (var->type.qualifier == SLANG_QUAL_CONST && !prog) {
       /* pre-defined global constant, like gl_MaxLights */
-      const GLint size = _slang_sizeof_type_specifier(&var->type.specifier);
       store = _slang_new_ir_storage(PROGRAM_CONSTANT, -1, size);
       if (dbg) printf("CONST ");
    }
@@ -3190,6 +3461,8 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
    if (store)
       var->aux = store;  /* save var's storage info */
 
+   var->declared = GL_TRUE;
+
    return success;
 }
 
diff --git a/src/mesa/shader/slang/slang_compile.c b/src/mesa/shader/slang/slang_compile.c
index ccb04494bf..fd5d4afacb 100644
--- a/src/mesa/shader/slang/slang_compile.c
+++ b/src/mesa/shader/slang/slang_compile.c
@@ -56,6 +56,9 @@
  */
 
 
+/** re-defined below, should be the same though */
+#define TYPE_SPECIFIER_COUNT 32
+
 
 /**
  * Allocate storage for a variable of 'size' bytes from given pool.
@@ -129,6 +132,7 @@ typedef struct slang_parse_ctx_
    GLboolean global_scope;   /**< Is object being declared a global? */
    slang_atom_pool *atoms;
    slang_unit_type type;     /**< Vertex vs. Fragment */
+   GLuint version;           /**< user-specified (or default) #version */
 } slang_parse_ctx;
 
 /* slang_output_ctx */
@@ -141,6 +145,7 @@ typedef struct slang_output_ctx_
    slang_var_pool *global_pool;
    struct gl_program *program;
    slang_var_table *vartable;
+   GLuint default_precision[TYPE_SPECIFIER_COUNT];
 } slang_output_ctx;
 
 /* _slang_compile() */
@@ -525,7 +530,7 @@ parse_type_qualifier(slang_parse_ctx * C, slang_type_qualifier * qual)
 #define TYPE_SPECIFIER_MAT42 29
 #define TYPE_SPECIFIER_MAT34 30
 #define TYPE_SPECIFIER_MAT43 31
-
+#define TYPE_SPECIFIER_COUNT 32
 
 static int
 parse_type_specifier(slang_parse_ctx * C, slang_output_ctx * O,
@@ -1788,20 +1793,6 @@ parse_function(slang_parse_ctx * C, slang_output_ctx * O, int definition,
       *parsed_func_ret = found_func;
    }
 
-   /* assemble the parsed function */
-   {
-      slang_assemble_ctx A;
-
-      A.atoms = C->atoms;
-      A.space.funcs = O->funs;
-      A.space.structs = O->structs;
-      A.space.vars = O->vars;
-      A.program = O->program;
-      A.vartable = O->vartable;
-      A.log = C->L;
-
-      _slang_codegen_function(&A, *parsed_func_ret);
-   }
    return GL_TRUE;
 }
 
@@ -1831,10 +1822,111 @@ parse_declaration(slang_parse_ctx * C, slang_output_ctx * O)
    return 1;
 }
 
-/* external declaration */
+
+#define PRECISION_LOW    0
+#define PRECISION_MEDIUM 1
+#define PRECISION_HIGH   2
+
+static int
+parse_default_precision(slang_parse_ctx * C, slang_output_ctx * O)
+{
+#if FEATURE_es2_glsl
+   int precision, type;
+
+   precision = *C->I++;
+   switch (precision) {
+   case PRECISION_LOW:
+   case PRECISION_MEDIUM:
+   case PRECISION_HIGH:
+      /* OK */
+      break;
+   default:
+      _mesa_problem(NULL, "unexpected precision %d at %s:%d\n",
+                    precision, __FILE__, __LINE__);
+      return 0;
+   }
+
+   type = *C->I++;
+   switch (type) {
+   case TYPE_SPECIFIER_FLOAT:
+   case TYPE_SPECIFIER_INT:
+   case TYPE_SPECIFIER_SAMPLER1D:
+   case TYPE_SPECIFIER_SAMPLER2D:
+   case TYPE_SPECIFIER_SAMPLER3D:
+   case TYPE_SPECIFIER_SAMPLERCUBE:
+   case TYPE_SPECIFIER_SAMPLER1DSHADOW:
+   case TYPE_SPECIFIER_SAMPLER2DSHADOW:
+   case TYPE_SPECIFIER_SAMPLER2DRECT:
+   case TYPE_SPECIFIER_SAMPLER2DRECTSHADOW:
+      /* OK */
+      break;
+   default:
+      _mesa_problem(NULL, "unexpected type %d at %s:%d\n",
+                    type, __FILE__, __LINE__);
+      return 0;
+   }
+
+   assert(type < TYPE_SPECIFIER_COUNT);
+   O->default_precision[type] = precision;
+
+   return 1;
+#else
+   slang_info_log_error(C->L, "syntax error at \"precision\"");
+   return 0;
+#endif
+}
+
+
+/**
+ * Initialize the default precision for all types.
+ * XXX this info isn't used yet.
+ */
+static void
+init_default_precision(slang_output_ctx *O, slang_unit_type type)
+{
+   GLuint i;
+   for (i = 0; i < TYPE_SPECIFIER_COUNT; i++) {
+#if FEATURE_es2_glsl
+      O->default_precision[i] = PRECISION_LOW;
+#else
+      O->default_precision[i] = PRECISION_HIGH;
+#endif
+   }
+#if FEATURE_es2_glsl
+   if (type == SLANG_UNIT_VERTEX_SHADER) {
+      O->default_precision[TYPE_SPECIFIER_FLOAT] = PRECISION_HIGH;
+      O->default_precision[TYPE_SPECIFIER_INT] = PRECISION_HIGH;
+   }
+   else {
+      O->default_precision[TYPE_SPECIFIER_INT] = PRECISION_MEDIUM;
+   }
+#endif
+}
+
+
+static int
+parse_invariant(slang_parse_ctx * C, slang_output_ctx * O)
+{
+   if (C->version >= 120 || FEATURE_es2_glsl) {
+      slang_atom *a = parse_identifier(C);
+      /* XXX not doing anything with this var yet */
+      /*printf("ID: %s\n", (char*) a);*/
+      return a ? 1 : 0;
+   }
+   else {
+      slang_info_log_error(C->L, "syntax error at \"invariant\"");
+      return 0;
+   }
+}
+      
+
+/* external declaration or default precision specifier */
 #define EXTERNAL_NULL 0
 #define EXTERNAL_FUNCTION_DEFINITION 1
 #define EXTERNAL_DECLARATION 2
+#define DEFAULT_PRECISION 3
+#define INVARIANT_STMT 4
+
 
 static GLboolean
 parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit,
@@ -1844,6 +1936,7 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit,
    slang_output_ctx o;
    GLboolean success;
    GLuint maxRegs;
+   slang_function *mainFunc = NULL;
 
    if (unit->type == SLANG_UNIT_FRAGMENT_BUILTIN ||
        unit->type == SLANG_UNIT_FRAGMENT_SHADER) {
@@ -1856,6 +1949,7 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit,
    }
 
    /* setup output context */
+   init_default_precision(&o, unit->type);
    o.funs = &unit->funs;
    o.structs = &unit->structs;
    o.vars = &unit->vars;
@@ -1871,11 +1965,22 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit,
          {
             slang_function *func;
             success = parse_function(C, &o, 1, &func);
+            if (success &&
+                _mesa_strcmp((char *) func->header.a_name, "main") == 0) {
+               /* found main() */
+               mainFunc = func;
+            }
          }
          break;
       case EXTERNAL_DECLARATION:
          success = parse_declaration(C, &o);
          break;
+      case DEFAULT_PRECISION:
+         success = parse_default_precision(C, &o);
+         break;
+      case INVARIANT_STMT:
+         success = parse_invariant(C, &o);
+         break;
       default:
          success = GL_FALSE;
       }
@@ -1888,6 +1993,22 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit,
    }
    C->I++;
 
+   if (mainFunc) {
+      /* assemble (generate code) for main() */
+      slang_assemble_ctx A;
+
+      A.atoms = C->atoms;
+      A.space.funcs = o.funs;
+      A.space.structs = o.structs;
+      A.space.vars = o.vars;
+      A.program = o.program;
+      A.vartable = o.vartable;
+      A.log = C->L;
+
+      _slang_codegen_function(&A, mainFunc);
+
+   }
+
    _slang_pop_var_table(o.vartable);
    _slang_delete_var_table(o.vartable);
 
@@ -1896,6 +2017,7 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit,
 
 static GLboolean
 compile_binary(const byte * prod, slang_code_unit * unit,
+               GLuint version,
                slang_unit_type type, slang_info_log * infolog,
                slang_code_unit * builtin, slang_code_unit * downlink,
                struct gl_program *program)
@@ -1911,6 +2033,7 @@ compile_binary(const byte * prod, slang_code_unit * unit,
    C.global_scope = GL_TRUE;
    C.atoms = &unit->object->atompool;
    C.type = type;
+   C.version = version;
 
    if (!check_revision(&C))
       return GL_FALSE;
@@ -1938,6 +2061,8 @@ compile_with_grammar(grammar id, const char *source, slang_code_unit * unit,
 
 #if FEATURE_ARB_shading_language_120
    maxVersion = 120;
+#elif FEATURE_es2_glsl
+   maxVersion = 100;
 #else
    maxVersion = 110;
 #endif
@@ -1987,7 +2112,7 @@ compile_with_grammar(grammar id, const char *source, slang_code_unit * unit,
    slang_string_free(&preprocessed);
 
    /* Syntax is okay - translate it to internal representation. */
-   if (!compile_binary(prod, unit, type, infolog, builtin,
+   if (!compile_binary(prod, unit, version, type, infolog, builtin,
                        &builtin[SLANG_BUILTIN_TOTAL - 1],
                        program)) {
       grammar_alloc_free(prod);
@@ -2031,6 +2156,7 @@ compile_object(grammar * id, const char *source, slang_code_object * object,
                struct gl_program *program)
 {
    slang_code_unit *builtins = NULL;
+   GLuint base_version = 110;
 
    /* load GLSL grammar */
    *id = grammar_load_from_text((const byte *) (slang_shader_syn));
@@ -2058,6 +2184,7 @@ compile_object(grammar * id, const char *source, slang_code_object * object,
       /* compile core functionality first */
       if (!compile_binary(slang_core_gc,
                           &object->builtin[SLANG_BUILTIN_CORE],
+                          base_version,
                           SLANG_UNIT_FRAGMENT_BUILTIN, infolog,
                           NULL, NULL, NULL))
          return GL_FALSE;
@@ -2065,6 +2192,7 @@ compile_object(grammar * id, const char *source, slang_code_object * object,
 #if FEATURE_ARB_shading_language_120
       if (!compile_binary(slang_120_core_gc,
                           &object->builtin[SLANG_BUILTIN_120_CORE],
+                          120,
                           SLANG_UNIT_FRAGMENT_BUILTIN, infolog,
                           NULL, &object->builtin[SLANG_BUILTIN_CORE], NULL))
          return GL_FALSE;
@@ -2073,6 +2201,11 @@ compile_object(grammar * id, const char *source, slang_code_object * object,
       /* compile common functions and variables, link to core */
       if (!compile_binary(slang_common_builtin_gc,
                           &object->builtin[SLANG_BUILTIN_COMMON],
+#if FEATURE_ARB_shading_language_120
+                          120,
+#else
+                          base_version,
+#endif
                           SLANG_UNIT_FRAGMENT_BUILTIN, infolog, NULL,
 #if FEATURE_ARB_shading_language_120
                           &object->builtin[SLANG_BUILTIN_120_CORE],
@@ -2086,12 +2219,14 @@ compile_object(grammar * id, const char *source, slang_code_object * object,
       if (type == SLANG_UNIT_FRAGMENT_SHADER) {
          if (!compile_binary(slang_fragment_builtin_gc,
                              &object->builtin[SLANG_BUILTIN_TARGET],
+                             base_version,
                              SLANG_UNIT_FRAGMENT_BUILTIN, infolog, NULL,
                              &object->builtin[SLANG_BUILTIN_COMMON], NULL))
             return GL_FALSE;
 #if FEATURE_ARB_shading_language_120
          if (!compile_binary(slang_120_fragment_gc,
                              &object->builtin[SLANG_BUILTIN_TARGET],
+                             120,
                              SLANG_UNIT_FRAGMENT_BUILTIN, infolog, NULL,
                              &object->builtin[SLANG_BUILTIN_COMMON], NULL))
             return GL_FALSE;
@@ -2100,6 +2235,7 @@ compile_object(grammar * id, const char *source, slang_code_object * object,
       else if (type == SLANG_UNIT_VERTEX_SHADER) {
          if (!compile_binary(slang_vertex_builtin_gc,
                              &object->builtin[SLANG_BUILTIN_TARGET],
+                             base_version,
                              SLANG_UNIT_VERTEX_BUILTIN, infolog, NULL,
                              &object->builtin[SLANG_BUILTIN_COMMON], NULL))
             return GL_FALSE;
diff --git a/src/mesa/shader/slang/slang_compile_operation.c b/src/mesa/shader/slang/slang_compile_operation.c
index b18e08d2ae..4d2fd5b666 100644
--- a/src/mesa/shader/slang/slang_compile_operation.c
+++ b/src/mesa/shader/slang/slang_compile_operation.c
@@ -69,8 +69,31 @@ slang_operation_destruct(slang_operation * oper)
    oper->locals = NULL;
 }
 
+
+/**
+ * Recursively traverse 'oper', replacing occurances of 'oldScope' with
+ * 'newScope' in the oper->locals->outer_scope field.
+ */
+void
+slang_replace_scope(slang_operation *oper,
+                    slang_variable_scope *oldScope,
+                    slang_variable_scope *newScope)
+{
+   GLuint i;
+   if (oper->locals != newScope &&
+       oper->locals->outer_scope == oldScope) {
+      oper->locals->outer_scope = newScope;
+   }
+   for (i = 0; i < oper->num_children; i++) {
+      slang_replace_scope(&oper->children[i], oldScope, newScope);
+   }
+}
+
+
 /**
  * Recursively copy a slang_operation node.
+ * \param x  copy target
+ * \param y  copy source
  * \return GL_TRUE for success, GL_FALSE if failure
  */
 GLboolean
@@ -121,6 +144,14 @@ slang_operation_copy(slang_operation * x, const slang_operation * y)
 #endif
    slang_operation_destruct(x);
    *x = z;
+
+   /* If this operation declares a new scope, we need to make sure
+    * all children point to it, not the original operation's scope!
+    */
+   if (x->type == SLANG_OPER_BLOCK_NEW_SCOPE) {
+      slang_replace_scope(x, y->locals, x->locals);
+   }
+
    return GL_TRUE;
 }
 
diff --git a/src/mesa/shader/slang/slang_compile_operation.h b/src/mesa/shader/slang/slang_compile_operation.h
index d5cbe779a6..4f92aa9a08 100644
--- a/src/mesa/shader/slang/slang_compile_operation.h
+++ b/src/mesa/shader/slang/slang_compile_operation.h
@@ -128,6 +128,11 @@ slang_operation_construct(slang_operation *);
 extern void
 slang_operation_destruct(slang_operation *);
 
+extern void
+slang_replace_scope(slang_operation *oper,
+                    slang_variable_scope *oldScope,
+                    slang_variable_scope *newScope);
+
 extern GLboolean
 slang_operation_copy(slang_operation *, const slang_operation *);
 
diff --git a/src/mesa/shader/slang/slang_compile_struct.c b/src/mesa/shader/slang/slang_compile_struct.c
index 97a34d24fe..96bdb1f491 100644
--- a/src/mesa/shader/slang/slang_compile_struct.c
+++ b/src/mesa/shader/slang/slang_compile_struct.c
@@ -115,6 +115,7 @@ slang_struct_construct(slang_struct * stru)
       return 0;
    }
    _slang_struct_scope_ctr(stru->structs);
+   stru->constructor = NULL;
    return 1;
 }
 
diff --git a/src/mesa/shader/slang/slang_compile_struct.h b/src/mesa/shader/slang/slang_compile_struct.h
index 79e6306616..90c5512f4d 100644
--- a/src/mesa/shader/slang/slang_compile_struct.h
+++ b/src/mesa/shader/slang/slang_compile_struct.h
@@ -29,11 +29,13 @@
 extern "C" {
 #endif
 
+struct slang_function_;
+
 typedef struct slang_struct_scope_
 {
-	struct slang_struct_ *structs;
+   struct slang_struct_ *structs;
    GLuint num_structs;
-	struct slang_struct_scope_ *outer_scope;
+   struct slang_struct_scope_ *outer_scope;
 } slang_struct_scope;
 
 extern GLvoid
@@ -45,9 +47,10 @@ struct slang_struct_ *slang_struct_scope_find (slang_struct_scope *, slang_atom,
 
 typedef struct slang_struct_
 {
-	slang_atom a_name;
-	struct slang_variable_scope_ *fields;
-	slang_struct_scope *structs;
+   slang_atom a_name;
+   struct slang_variable_scope_ *fields;
+   slang_struct_scope *structs;
+   struct slang_function_ *constructor;
 } slang_struct;
 
 int slang_struct_construct (slang_struct *);
diff --git a/src/mesa/shader/slang/slang_compile_variable.h b/src/mesa/shader/slang/slang_compile_variable.h
index d3691f0f51..9b0f85859a 100644
--- a/src/mesa/shader/slang/slang_compile_variable.h
+++ b/src/mesa/shader/slang/slang_compile_variable.h
@@ -80,6 +80,7 @@ typedef struct slang_variable_
    GLuint address;                  /**< Storage location */
    GLuint size;                     /**< Variable's size in bytes */
    GLboolean isTemp;                /**< a named temporary (__resultTmp) */
+   GLboolean declared;              /**< for debug */
    void *aux;                       /**< Used during code gen */
 } slang_variable;
 
diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c
index 6d79380ab5..912c325bb2 100644
--- a/src/mesa/shader/slang/slang_emit.c
+++ b/src/mesa/shader/slang/slang_emit.c
@@ -126,21 +126,6 @@ _slang_swizzle_swizzle(GLuint swz1, GLuint swz2)
 }
 
 
-slang_ir_storage *
-_slang_new_ir_storage(enum register_file file, GLint index, GLint size)
-{
-   slang_ir_storage *st;
-   st = (slang_ir_storage *) _slang_alloc(sizeof(slang_ir_storage));
-   if (st) {
-      st->File = file;
-      st->Index = index;
-      st->Size = size;
-      st->Swizzle = SWIZZLE_NOOP;
-   }
-   return st;
-}
-
-
 /**
  * Allocate temporary storage for an intermediate result (such as for
  * a multiply or add, etc.
@@ -184,6 +169,39 @@ free_temp_storage(slang_var_table *vt, slang_ir_node *n)
 }
 
 
+
+/**
+ * Remove any SWIZZLE_NIL terms from given swizzle mask.
+ * For a swizzle like .z??? generate .zzzz (replicate single component).
+ * Else, for .wx?? generate .wxzw (insert default component for the position).
+ */
+static GLuint
+fix_swizzle(GLuint swizzle)
+{
+   GLuint c0 = GET_SWZ(swizzle, 0),
+      c1 = GET_SWZ(swizzle, 1),
+      c2 = GET_SWZ(swizzle, 2),
+      c3 = GET_SWZ(swizzle, 3);
+   if (c1 == SWIZZLE_NIL && c2 == SWIZZLE_NIL && c3 == SWIZZLE_NIL) {
+      /* smear first component across all positions */
+      c1 = c2 = c3 = c0;
+   }
+   else {
+      /* insert default swizzle components */
+      if (c0 == SWIZZLE_NIL)
+         c0 = SWIZZLE_X;
+      if (c1 == SWIZZLE_NIL)
+         c1 = SWIZZLE_Y;
+      if (c2 == SWIZZLE_NIL)
+         c2 = SWIZZLE_Z;
+      if (c3 == SWIZZLE_NIL)
+         c3 = SWIZZLE_W;
+   }
+   return MAKE_SWIZZLE4(c0, c1, c2, c3);
+}
+
+
+
 /**
  * Convert IR storage to an instruction dst register.
  */
@@ -191,14 +209,28 @@ static void
 storage_to_dst_reg(struct prog_dst_register *dst, const slang_ir_storage *st,
                    GLuint writemask)
 {
-   assert(st->Index >= 0);
-   dst->File = st->File;
-   dst->Index = st->Index;
+   const GLint size = st->Size;
+   GLint index = st->Index;
+   GLuint swizzle = st->Swizzle;
+
+   /* if this is storage relative to some parent storage, walk up the tree */
+   while (st->Parent) {
+      st = st->Parent;
+      index += st->Index;
+      swizzle = _slang_swizzle_swizzle(st->Swizzle, swizzle);
+   }
+
    assert(st->File != PROGRAM_UNDEFINED);
-   assert(st->Size >= 1);
-   assert(st->Size <= 4);
-   if (st->Size == 1) {
-      GLuint comp = GET_SWZ(st->Swizzle, 0);
+   dst->File = st->File;
+
+   assert(index >= 0);
+   dst->Index = index;
+
+   assert(size >= 1);
+   assert(size <= 4);
+
+   if (size == 1) {
+      GLuint comp = GET_SWZ(swizzle, 0);
       assert(comp < 4);
       dst->WriteMask = WRITEMASK_X << comp;
    }
@@ -214,28 +246,32 @@ storage_to_dst_reg(struct prog_dst_register *dst, const slang_ir_storage *st,
 static void
 storage_to_src_reg(struct prog_src_register *src, const slang_ir_storage *st)
 {
-   static const GLuint defaultSwizzle[4] = {
-      MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_X),
-      MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_W),
-      MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_W),
-      MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_W)
-   };
+   const GLboolean relAddr = st->RelAddr;
+   GLint index = st->Index;
+   GLuint swizzle = st->Swizzle;
+
+   /* if this is storage relative to some parent storage, walk up the tree */
+   while (st->Parent) {
+      st = st->Parent;
+      index += st->Index;
+      swizzle = _slang_swizzle_swizzle(st->Swizzle, swizzle);
+   }
+
    assert(st->File >= 0);
    assert(st->File < PROGRAM_UNDEFINED);
-   assert(st->Size >= 1);
-   assert(st->Size <= 4);
    src->File = st->File;
-   src->Index = st->Index;
-   src->RelAddr = st->RelAddr;
-   if (st->Swizzle != SWIZZLE_NOOP)
-      src->Swizzle = st->Swizzle;
-   else
-      src->Swizzle = defaultSwizzle[st->Size - 1]; /*XXX really need this?*/
 
-   assert(GET_SWZ(src->Swizzle, 0) <= 3);
-   assert(GET_SWZ(src->Swizzle, 1) <= 3);
-   assert(GET_SWZ(src->Swizzle, 2) <= 3);
-   assert(GET_SWZ(src->Swizzle, 3) <= 3);
+   assert(index >= 0);
+   src->Index = index;
+
+   swizzle = fix_swizzle(swizzle);
+   assert(GET_SWZ(swizzle, 0) <= SWIZZLE_W);
+   assert(GET_SWZ(swizzle, 1) <= SWIZZLE_W);
+   assert(GET_SWZ(swizzle, 2) <= SWIZZLE_W);
+   assert(GET_SWZ(swizzle, 3) <= SWIZZLE_W);
+   src->Swizzle = swizzle;
+
+   src->RelAddr = relAddr;
 }
 
 
@@ -469,6 +505,12 @@ emit_arith(slang_emit_info *emitInfo, slang_ir_node *n)
    const slang_ir_info *info = _slang_ir_info(n->Opcode);
    char *srcAnnot[3], *dstAnnot;
    GLuint i;
+   slang_ir_node *temps[3];
+
+   /* we'll save pointers to nodes/storage to free in temps[] until
+    * the very end.
+    */
+   temps[0] = temps[1] = temps[2] = NULL;
 
    assert(info);
    assert(info->InstOpcode != OPCODE_NOP);
@@ -489,9 +531,9 @@ emit_arith(slang_emit_info *emitInfo, slang_ir_node *n)
       storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Children[0]->Store);
       storage_to_src_reg(&inst->SrcReg[1], n->Children[0]->Children[1]->Store);
       storage_to_src_reg(&inst->SrcReg[2], n->Children[1]->Store);
-      free_temp_storage(emitInfo->vt, n->Children[0]->Children[0]);
-      free_temp_storage(emitInfo->vt, n->Children[0]->Children[1]);
-      free_temp_storage(emitInfo->vt, n->Children[1]);
+      temps[0] = n->Children[0]->Children[0];
+      temps[1] = n->Children[0]->Children[1];
+      temps[2] = n->Children[1];
    }
    else if (info->NumParams == 2 &&
             n->Opcode == IR_ADD && n->Children[1]->Opcode == IR_MUL) {
@@ -505,9 +547,9 @@ emit_arith(slang_emit_info *emitInfo, slang_ir_node *n)
       storage_to_src_reg(&inst->SrcReg[0], n->Children[1]->Children[0]->Store);
       storage_to_src_reg(&inst->SrcReg[1], n->Children[1]->Children[1]->Store);
       storage_to_src_reg(&inst->SrcReg[2], n->Children[0]->Store);
-      free_temp_storage(emitInfo->vt, n->Children[1]->Children[0]);
-      free_temp_storage(emitInfo->vt, n->Children[1]->Children[1]);
-      free_temp_storage(emitInfo->vt, n->Children[0]);
+      temps[0] = n->Children[1]->Children[0];
+      temps[1] = n->Children[1]->Children[1];
+      temps[2] = n->Children[0];
    }
    else
 #endif
@@ -532,17 +574,26 @@ emit_arith(slang_emit_info *emitInfo, slang_ir_node *n)
       for (i = 0; i < info->NumParams; i++)
          srcAnnot[i] = storage_annotation(n->Children[i], emitInfo->prog);
 
-      /* free temps */
+      /* record (potential) temps to free */
       for (i = 0; i < info->NumParams; i++)
-         free_temp_storage(emitInfo->vt, n->Children[i]);
+         temps[i] = n->Children[i];
    }
 
    /* result storage */
    if (!n->Store) {
-      /* XXX this size isn't correct, it depends on the operands */
-      if (!alloc_temp_storage(emitInfo, n, info->ResultSize))
+      GLint size = info->ResultSize;
+      if (!alloc_temp_storage(emitInfo, n, size))
          return NULL;
+#if 0000 /* this should work, but doesn't yet */
+      if (size == 2)
+         n->Writemask = WRITEMASK_XY;
+      else if (size == 3)
+         n->Writemask = WRITEMASK_XYZ;
+      else if (size == 1)
+         n->Writemask = WRITEMASK_X << GET_SWZ(n->Store->Swizzle,0);
+#endif
    }
+
    storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask);
 
    dstAnnot = storage_annotation(n, emitInfo->prog);
@@ -550,6 +601,11 @@ emit_arith(slang_emit_info *emitInfo, slang_ir_node *n)
    inst->Comment = instruction_annotation(inst->Opcode, dstAnnot, srcAnnot[0],
                                           srcAnnot[1], srcAnnot[2]);
 
+   /* really free temps now */
+   for (i = 0; i < 3; i++)
+      if (temps[i])
+         free_temp_storage(emitInfo->vt, temps[i]);
+
    /*_mesa_print_instruction(inst);*/
    return inst;
 }
@@ -640,29 +696,72 @@ emit_compare(slang_emit_info *emitInfo, slang_ir_node *n)
       }
    }
    else {
-      /* size > 4, struct compare */
-#if 0
+      /* size > 4, struct or array compare.
+       * XXX this won't work reliably for structs with padding!!
+       */
       GLint i, num = (n->Children[0]->Store->Size + 3) / 4;
-      /*printf("BEGIN COMPARE size %d\n", num);*/
+      slang_ir_storage accTemp;
+
+      if (!n->Store) {
+         if (!alloc_temp_storage(emitInfo, n, 4))
+            return NULL;
+      }
+
+      accTemp.Size = 4;
+      accTemp.File = PROGRAM_TEMPORARY;
+      if (!_slang_alloc_temp(emitInfo->vt, &accTemp)) {
+         return NULL;
+         /* out of temps */
+      }
+
       for (i = 0; i < num; i++) {
-         inst = new_instruction(emitInfo, opcode);
+         /* SNE t0, left[i], right[i] */
+         inst = new_instruction(emitInfo, OPCODE_SNE);
          inst->SrcReg[0].File = n->Children[0]->Store->File;
          inst->SrcReg[0].Index = n->Children[0]->Store->Index + i;
          inst->SrcReg[1].File = n->Children[1]->Store->File;
          inst->SrcReg[1].Index = n->Children[1]->Store->Index + i;
-         inst->DstReg.File = n->Store->File;
-         inst->DstReg.Index = n->Store->Index;
-
-         inst->CondUpdate = 1; /* update cond code */
+         if (i == 0) {
+            inst->DstReg.File = accTemp.File;
+            inst->DstReg.Index = accTemp.Index;
+            inst->Comment = _mesa_strdup("Begin struct/array comparison");
+         }
+         else {
+            inst->DstReg.File = n->Store->File;
+            inst->DstReg.Index = n->Store->Index;
+         }
          if (i > 0) {
-            inst->DstReg.CondMask = COND_NE; /* update if !=0 */
+            /* ADD accTemp, accTemp, temp; # like logical-OR */
+            inst = new_instruction(emitInfo, OPCODE_ADD);
+            inst->SrcReg[0].File = accTemp.File;
+            inst->SrcReg[0].Index = accTemp.Index;
+            inst->SrcReg[1].File = n->Store->File;
+            inst->SrcReg[1].Index = n->Store->Index;
+            inst->DstReg.File = accTemp.File;
+            inst->DstReg.Index = accTemp.Index;
          }
-         /*_mesa_print_instruction(inst);*/
       }
-      storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask);
-#endif
-      _mesa_problem(NULL, "struct comparison not implemented yet");
-      inst = NULL;
+
+      /* compute accTemp.x || accTemp.y || accTemp.z || accTemp.w with DOT4 */
+      inst = new_instruction(emitInfo, OPCODE_DP4);
+      inst->SrcReg[0].File = accTemp.File;
+      inst->SrcReg[0].Index = accTemp.Index;
+      inst->SrcReg[1].File = accTemp.File;
+      inst->SrcReg[1].Index = accTemp.Index;
+      inst->DstReg.File = n->Store->File;
+      inst->DstReg.Index = n->Store->Index;
+      inst->Comment = _mesa_strdup("End struct/array comparison");
+
+      if (n->Opcode == IR_EQUAL) {
+         /* compute tmp.x = !tmp.x  via tmp.x = (tmp.x == 0) */
+         inst = new_instruction(emitInfo, OPCODE_SEQ);
+         storage_to_src_reg(&inst->SrcReg[0], n->Store);
+         constant_to_src_reg(&inst->SrcReg[1], 0.0, emitInfo);
+         storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask);
+         inst->Comment = _mesa_strdup("Invert true/false");
+      }
+
+      _slang_free_temp(emitInfo->vt, &accTemp);
    }
 
    /* free temps */
@@ -944,6 +1043,8 @@ emit_move(slang_emit_info *emitInfo, slang_ir_node *n)
 {
    struct prog_instruction *inst;
 
+   assert(n->Opcode == IR_MOVE);
+
    /* lhs */
    emit(emitInfo, n->Children[0]);
    if (!n->Children[0]->Store || n->Children[0]->Store->Index < 0) {
@@ -982,8 +1083,14 @@ emit_move(slang_emit_info *emitInfo, slang_ir_node *n)
       if (n->Children[1]->Opcode != IR_SWIZZLE)
          _slang_free_temp(emitInfo->vt, n->Children[1]->Store);
       *n->Children[1]->Store = *n->Children[0]->Store;
+
       /* fixup the previous instruction (which stored the RHS result) */
       assert(n->Children[0]->Store->Index >= 0);
+
+      /* use tighter writemask when possible */
+      if (n->Writemask == WRITEMASK_XYZW)
+         n->Writemask = inst->DstReg.WriteMask;
+
       storage_to_dst_reg(&inst->DstReg, n->Children[0]->Store, n->Writemask);
       return inst;
    }
@@ -1161,6 +1268,9 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n)
       }
    }
 
+   if (!n->Children[0]->Store)
+      return NULL;
+
 #if 0
    assert(n->Children[0]->Store->Size == 1); /* a bool! */
 #endif
@@ -1395,75 +1505,18 @@ emit_cont_break_if_true(slang_emit_info *emitInfo, slang_ir_node *n)
 }
 
 
-
-/**
- * Remove any SWIZZLE_NIL terms from given swizzle mask (smear prev term).
- * Ex: fix_swizzle("zyNN") -> "zyyy"
- */
-static GLuint
-fix_swizzle(GLuint swizzle)
-{
-   GLuint swz[4], i;
-   for (i = 0; i < 4; i++) {
-      swz[i] = GET_SWZ(swizzle, i);
-      if (swz[i] == SWIZZLE_NIL) {
-         swz[i] = swz[i - 1];
-      }
-   }
-   return MAKE_SWIZZLE4(swz[0], swz[1], swz[2], swz[3]);
-}
-
-
-/**
- * Return the number of components actually named by the swizzle.
- * Recall that swizzles may have undefined/don't-care values.
- */
-static GLuint
-swizzle_size(GLuint swizzle)
-{
-   GLuint size = 0, i;
-   for (i = 0; i < 4; i++) {
-      GLuint swz = GET_SWZ(swizzle, i);
-      size += (swz >= 0 && swz <= 3);
-   }
-   return size;
-}
-
-
 static struct prog_instruction *
 emit_swizzle(slang_emit_info *emitInfo, slang_ir_node *n)
 {
-   GLuint swizzle;
    struct prog_instruction *inst;
 
    inst = emit(emitInfo, n->Children[0]);
 
-#ifdef DEBUG
-   {
-      GLuint s = n->Children[0]->Store->Swizzle;
-      assert(GET_SWZ(s, 0) != SWIZZLE_NIL);
-      assert(GET_SWZ(s, 1) != SWIZZLE_NIL);
-      assert(GET_SWZ(s, 2) != SWIZZLE_NIL);
-      assert(GET_SWZ(s, 3) != SWIZZLE_NIL);
-   }
-#endif
-   /* For debug: n->Var = n->Children[0]->Var; */
-
-   /* "pull-up" the child's storage info, applying our swizzle info */
-   n->Store->File  = n->Children[0]->Store->File;
-   n->Store->Index = n->Children[0]->Store->Index;
-   n->Store->Size = swizzle_size(n->Store->Swizzle);
-#if 0
-   printf("Emit Swizzle %s  reg %d  chSize %d  mySize %d\n",
-          _mesa_swizzle_string(n->Store->Swizzle, 0, 0),
-          n->Store->Index, n->Children[0]->Store->Size,
-          n->Store->Size);
-#endif
+   /* setup storage info, if needed */
+   if (!n->Store->Parent)
+      n->Store->Parent = n->Children[0]->Store;
 
-   /* apply this swizzle to child's swizzle to get composed swizzle */
-   swizzle = fix_swizzle(n->Store->Swizzle); /* remove the don't care terms */
-   n->Store->Swizzle = _slang_swizzle_swizzle(n->Children[0]->Store->Swizzle,
-                                              swizzle);
+   assert(n->Store->Parent);
 
    return inst;
 }
@@ -1476,33 +1529,85 @@ emit_swizzle(slang_emit_info *emitInfo, slang_ir_node *n)
 static struct prog_instruction *
 emit_array_element(slang_emit_info *emitInfo, slang_ir_node *n)
 {
+   slang_ir_storage *root;
+
+   assert(n->Opcode == IR_ELEMENT);
    assert(n->Store);
-   assert(n->Store->File != PROGRAM_UNDEFINED);
+   assert(n->Store->File == PROGRAM_UNDEFINED);
+   assert(n->Store->Parent);
    assert(n->Store->Size > 0);
 
-   if (n->Store->File == PROGRAM_STATE_VAR) {
-      n->Store->Index = _slang_alloc_statevar(n, emitInfo->prog->Parameters);
+   root = n->Store;
+   while (root->Parent)
+      root = root->Parent;
+
+   if (root->File == PROGRAM_STATE_VAR) {
+      GLint index = _slang_alloc_statevar(n, emitInfo->prog->Parameters);
+      assert(n->Store->Index == index);
       return NULL;
    }
 
    if (n->Children[1]->Opcode == IR_FLOAT) {
-      /* Constant index */
+      /* Constant array index */
+#if 0 /* just debug code */
       const GLint arrayAddr = n->Children[0]->Store->Index;
       const GLint index = (GLint) n->Children[1]->Value[0];
-      n->Store->Index = arrayAddr + index;
+      assert(index == n->Store->Index);
+      assert(arrayAddr == parent->Index);
+      assert(n->Children[0]->Store == parent);
+      assert(n->Children[0]->Store->Index == parent->Index);
+#endif
+
+      GLint index = n->Store->Index;
+
+      slang_ir_storage *p = n->Store;
+      index = 0;
+      while (p->Parent) {
+         int sz = (p->Size + 3) / 4;
+         /*printf("element [%d] of size %d (%d)\n", p->Index, p->Size, sz);*/
+         index += sz * p->Index;
+         p = p->Parent;
+      }
+      index += p->Index;
+
+      assert(root->File != PROGRAM_UNDEFINED);
+
+      /* resolve new absolute storage location */
+      assert(n->Store);
+      n->Store->File = root->File;
+      if (root->File == PROGRAM_STATE_VAR)
+         n->Store->Index = 0;
+      else
+         n->Store->Index = index;
+
+      n->Store->Parent = NULL;
    }
    else {
-      /* Variable index*/
+      /* Variable array index */
       struct prog_instruction *inst;
+
+      /* do codegen for array */
+      emit(emitInfo, n->Children[0]);
+
+      /* do codegen for array index expression */
+      emit(emitInfo, n->Children[1]);
+
       inst = new_instruction(emitInfo, OPCODE_ARL);
+
       storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask);
       storage_to_src_reg(&inst->SrcReg[0], n->Children[1]->Store);
+
       inst->DstReg.File = PROGRAM_ADDRESS;
+      inst->DstReg.Index = 0; /* always address register [0] */
       inst->Comment = _mesa_strdup("ARL ADDR");
+
       n->Store->RelAddr = GL_TRUE;
-      n->Store->Index = inst->DstReg.Index;/*index of the array*/
-      inst->DstReg.Index = 0; /*addr index is always 0*/
    }
+
+   /* if array element size is one, make sure we only access X */
+   if (n->Store->Size == 1)
+      n->Store->Swizzle = SWIZZLE_XXXX;
+
    return NULL; /* no instruction */
 }
 
@@ -1513,25 +1618,27 @@ emit_array_element(slang_emit_info *emitInfo, slang_ir_node *n)
 static struct prog_instruction *
 emit_struct_field(slang_emit_info *emitInfo, slang_ir_node *n)
 {
-   if (n->Store->File == PROGRAM_STATE_VAR) {
-      n->Store->Index = _slang_alloc_statevar(n, emitInfo->prog->Parameters);
-      if (n->Store->Index < 0) {
+   slang_ir_storage *root = n->Store;
+
+   assert(n->Opcode == IR_FIELD);
+
+   while (root->Parent)
+      root = root->Parent;
+
+   /* If this is the field of a state var, allocate constant/uniform
+    * storage for it now if we haven't already.
+    * Note that we allocate storage (uniform/constant slots) for state
+    * variables here rather than at declaration time so we only allocate
+    * space for the ones that we actually use!
+    */
+   if (root->File == PROGRAM_STATE_VAR) {
+      root->Index = _slang_alloc_statevar(n, emitInfo->prog->Parameters);
+      if (root->Index < 0) {
          slang_info_log_error(emitInfo->log, "Error parsing state variable");
          return NULL;
       }
    }
-   else {
-      GLint offset = n->FieldOffset / 4;
-      assert(n->Children[0]->Store->Index >= 0);
-      n->Store->Index = n->Children[0]->Store->Index + offset;
-      if (n->Store->Size == 1) {
-         GLint swz = n->FieldOffset % 4;
-         n->Store->Swizzle = MAKE_SWIZZLE4(swz, swz, swz, swz);
-      }
-      else {
-         n->Store->Swizzle = SWIZZLE_XYZW;
-      }
-   }
+
    return NULL; /* no instruction */
 }
 
@@ -1657,6 +1764,9 @@ emit(slang_emit_info *emitInfo, slang_ir_node *n)
    case IR_COS:
    case IR_DDX:
    case IR_DDY:
+   case IR_EXP:
+   case IR_EXP2:
+   case IR_LOG2:
    case IR_NOISE1:
    case IR_NOISE2:
    case IR_NOISE3:
@@ -1677,8 +1787,6 @@ emit(slang_emit_info *emitInfo, slang_ir_node *n)
    case IR_SLE:
    case IR_SLT:
    case IR_POW:
-   case IR_EXP:
-   case IR_EXP2:
    /* trinary operators */
    case IR_LRP:
       return emit_arith(emitInfo, n);
diff --git a/src/mesa/shader/slang/slang_emit.h b/src/mesa/shader/slang/slang_emit.h
index 7d70b3311b..153e872d74 100644
--- a/src/mesa/shader/slang/slang_emit.h
+++ b/src/mesa/shader/slang/slang_emit.h
@@ -40,10 +40,6 @@ extern GLuint
 _slang_swizzle_swizzle(GLuint swz1, GLuint swz2);
 
 
-extern slang_ir_storage *
-_slang_new_ir_storage(enum register_file file, GLint index, GLint size);
-
-
 extern GLboolean
 _slang_emit_code(slang_ir_node *n, slang_var_table *vartable,
                  struct gl_program *prog, GLboolean withEnd,
diff --git a/src/mesa/shader/slang/slang_ir.c b/src/mesa/shader/slang/slang_ir.c
index 16c36aad0c..a414036a36 100644
--- a/src/mesa/shader/slang/slang_ir.c
+++ b/src/mesa/shader/slang/slang_ir.c
@@ -51,6 +51,8 @@ static const slang_ir_info IrInfo[] = {
    { IR_SLT, "IR_SLT", OPCODE_SLT, 4, 2 },
    { IR_POW, "IR_POW", OPCODE_POW, 1, 2 },
    { IR_EQUAL, "IR_EQUAL", OPCODE_NOP, 1, 2 },
+   { IR_NOTEQUAL, "IR_NOTEQUAL", OPCODE_NOP, 1, 2 },
+
    /* unary ops */
    { IR_I_TO_F, "IR_I_TO_F", OPCODE_NOP, 1, 1 },
    { IR_F_TO_I, "IR_F_TO_I", OPCODE_INT, 4, 1 }, /* 4 floats to 4 ints */
@@ -109,6 +111,66 @@ _slang_ir_info(slang_ir_opcode opcode)
 }
 
 
+/**
+ * Return a new slang_ir_storage object.
+ */
+slang_ir_storage *
+_slang_new_ir_storage(enum register_file file, GLint index, GLint size)
+{
+   slang_ir_storage *st;
+   st = (slang_ir_storage *) _slang_alloc(sizeof(slang_ir_storage));
+   if (st) {
+      st->File = file;
+      st->Index = index;
+      st->Size = size;
+      st->Swizzle = SWIZZLE_NOOP;
+      st->Parent = NULL;
+   }
+   return st;
+}
+
+
+/**
+ * Return a new slang_ir_storage object.
+ */
+slang_ir_storage *
+_slang_new_ir_storage_swz(enum register_file file, GLint index, GLint size,
+                          GLuint swizzle)
+{
+   slang_ir_storage *st;
+   st = (slang_ir_storage *) _slang_alloc(sizeof(slang_ir_storage));
+   if (st) {
+      st->File = file;
+      st->Index = index;
+      st->Size = size;
+      st->Swizzle = swizzle;
+      st->Parent = NULL;
+   }
+   return st;
+}
+
+
+/**
+ * Return a new slang_ir_storage object.
+ */
+slang_ir_storage *
+_slang_new_ir_storage_relative(GLint index, GLint size,
+                               slang_ir_storage *parent)
+{
+   slang_ir_storage *st;
+   st = (slang_ir_storage *) _slang_alloc(sizeof(slang_ir_storage));
+   if (st) {
+      st->File = PROGRAM_UNDEFINED;
+      st->Index = index;
+      st->Size = size;
+      st->Swizzle = SWIZZLE_NOOP;
+      st->Parent = parent;
+   }
+   return st;
+}
+
+
+
 static const char *
 _slang_ir_name(slang_ir_opcode opcode)
 {
@@ -116,6 +178,7 @@ _slang_ir_name(slang_ir_opcode opcode)
 }
 
 
+
 #if 0 /* no longer needed with mempool */
 /**
  * Since many IR nodes might point to the same IR storage info, we need
@@ -177,20 +240,6 @@ _slang_free_ir_tree(slang_ir_node *n)
 
 
 static const char *
-swizzle_string(GLuint swizzle)
-{
-   static char s[6];
-   GLuint i;
-   s[0] = '.';
-   for (i = 1; i < 5; i++) {
-      s[i] = "xyzw"[GET_SWZ(swizzle, i-1)];
-   }
-   s[i] = 0;
-   return s;
-}
-
-
-static const char *
 writemask_string(GLuint writemask)
 {
    static char s[6];
@@ -347,7 +396,7 @@ _slang_print_ir_tree(const slang_ir_node *n, int indent)
    case IR_VAR:
       printf("VAR %s%s at %s  store %p\n",
              (n->Var ? (char *) n->Var->a_name : "TEMP"),
-             swizzle_string(n->Store->Swizzle),
+             _mesa_swizzle_string(n->Store->Swizzle, 0, 0),
              storage_string(n->Store), (void*) n->Store);
       break;
    case IR_VAR_DECL:
@@ -374,7 +423,7 @@ _slang_print_ir_tree(const slang_ir_node *n, int indent)
       break;
    case IR_SWIZZLE:
       printf("SWIZZLE %s of  (store %p) \n",
-             swizzle_string(n->Store->Swizzle), (void*) n->Store);
+             _mesa_swizzle_string(n->Store->Swizzle, 0, 0), (void*) n->Store);
       _slang_print_ir_tree(n->Children[0], indent + 3);
       break;
    default:
diff --git a/src/mesa/shader/slang/slang_ir.h b/src/mesa/shader/slang/slang_ir.h
index ba0735d64d..61ff649e5c 100644
--- a/src/mesa/shader/slang/slang_ir.h
+++ b/src/mesa/shader/slang/slang_ir.h
@@ -147,6 +147,11 @@ struct _slang_ir_storage
    GLuint Swizzle;
    GLint RefCount; /**< Used during IR tree delete */
    GLboolean RelAddr;
+
+   /** If Parent is non-null, Index is relative to parent.
+    * The other fields are ignored.
+    */
+   struct _slang_ir_storage *Parent;
 };
 
 typedef struct _slang_ir_storage slang_ir_storage;
@@ -165,7 +170,6 @@ typedef struct slang_ir_node_
 
    /** special fields depending on Opcode: */
    const char *Field;  /**< If Opcode == IR_FIELD */
-   int FieldOffset;  /**< If Opcode == IR_FIELD */
    GLuint Writemask;  /**< If Opcode == IR_MOVE */
    GLfloat Value[4];    /**< If Opcode == IR_FLOAT */
    slang_variable *Var;  /**< If Opcode == IR_VAR or IR_VAR_DECL */
@@ -193,6 +197,20 @@ extern const slang_ir_info *
 _slang_ir_info(slang_ir_opcode opcode);
 
 
+extern slang_ir_storage *
+_slang_new_ir_storage(enum register_file file, GLint index, GLint size);
+
+
+extern slang_ir_storage *
+_slang_new_ir_storage_swz(enum register_file file, GLint index, GLint size,
+                          GLuint swizzle);
+
+extern slang_ir_storage *
+_slang_new_ir_storage_relative(GLint index, GLint size,
+                               slang_ir_storage *parent);
+
+
+
 extern void
 _slang_free_ir_tree(slang_ir_node *n);
 
diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c
index f08b53e8b7..e9b9bbc43f 100644
--- a/src/mesa/shader/slang/slang_link.c
+++ b/src/mesa/shader/slang/slang_link.c
@@ -211,7 +211,6 @@ _slang_resolve_attributes(struct gl_shader_program *shProg,
 {
    GLuint i, j;
    GLbitfield usedAttributes;
-   GLint size = 4; /* XXX fix */
 
    assert(prog->Target == GL_VERTEX_PROGRAM_ARB);
 
@@ -253,6 +252,8 @@ _slang_resolve_attributes(struct gl_shader_program *shProg,
                 * Start at 1 since generic attribute 0 always aliases
                 * glVertex/position.
                 */
+               GLint size = prog->Attributes->Parameters[k].Size;
+               GLenum datatype = prog->Attributes->Parameters[k].DataType;
                for (attr = 1; attr < MAX_VERTEX_ATTRIBS; attr++) {
                   if (((1 << attr) & usedAttributes) == 0)
                      break;
@@ -261,7 +262,7 @@ _slang_resolve_attributes(struct gl_shader_program *shProg,
                   /* too many!  XXX record error log */
                   return GL_FALSE;
                }
-               _mesa_add_attribute(shProg->Attributes, name, size, attr);
+               _mesa_add_attribute(shProg->Attributes, name, size, datatype,attr);
 
 	       /* set the attribute as used */
 	       usedAttributes |= 1<<attr;
diff --git a/src/mesa/shader/slang/slang_preprocess.c b/src/mesa/shader/slang/slang_preprocess.c
index 1645afcc18..d3f412c211 100644
--- a/src/mesa/shader/slang/slang_preprocess.c
+++ b/src/mesa/shader/slang/slang_preprocess.c
@@ -729,6 +729,14 @@ expand (expand_state *e, pp_symbols *symbols)
             slang_string_pushi (e->output, e->state->version);
             slang_string_pushc (e->output, ' ');
          }
+#if FEATURE_es2_glsl
+         else if (_mesa_strcmp (id, "GL_ES") == 0 ||
+                  _mesa_strcmp (id, "GL_FRAGMENT_PRECISION_HIGH") == 0) {
+            slang_string_pushc (e->output, ' ');
+            slang_string_pushi (e->output, '1');
+            slang_string_pushc (e->output, ' ');
+         }
+#endif
          else {
             pp_symbol *symbol;
 
@@ -829,6 +837,16 @@ static GLboolean
 preprocess_source (slang_string *output, const char *source, grammar pid, grammar eid,
                    slang_info_log *elog)
 {
+   static const char *predefined[] = {
+      "__FILE__",
+      "__LINE__",
+      "__VERSION__",
+#if FEATURE_es2_glsl
+      "GL_ES",
+      "GL_FRAGMENT_PRECISION_HIGH",
+#endif
+      NULL
+   };
    byte *prod;
    GLuint size, i;
    pp_state state;
@@ -840,6 +858,15 @@ preprocess_source (slang_string *output, const char *source, grammar pid, gramma
 
    pp_state_init (&state, elog);
 
+   /* add the predefined symbols to the symbol table */
+   for (i = 0; predefined[i]; i++) {
+      pp_symbol *symbol = NULL;
+      symbol = pp_symbols_push(&state.symbols);
+      assert(symbol);
+      slang_string_pushs(&symbol->name,
+                         predefined[i], _mesa_strlen(predefined[i]));
+   }
+
    i = 0;
    while (i < size) {
       if (prod[i] != ESCAPE_TOKEN) {
diff --git a/src/mesa/shader/slang/slang_print.c b/src/mesa/shader/slang/slang_print.c
index ff9c62c929..f48762fb11 100644
--- a/src/mesa/shader/slang/slang_print.c
+++ b/src/mesa/shader/slang/slang_print.c
@@ -156,7 +156,7 @@ print_variable(const slang_variable *v, int indent)
    spaces(indent);
    printf("VAR ");
    print_type(&v->type);
-   printf(" %s", (char *) v->a_name);
+   printf(" %s (at %p)", (char *) v->a_name, (void *) v);
    if (v->initializer) {
       printf(" :=\n");
       slang_print_tree(v->initializer, indent + 3);
@@ -171,10 +171,12 @@ static void
 print_binary(const slang_operation *op, const char *oper, int indent)
 {
    assert(op->num_children == 2);
+#if 0
    printf("binary at %p locals=%p outer=%p\n",
           (void *) op,
           (void *) op->locals,
           (void *) op->locals->outer_scope);
+#endif
    slang_print_tree(&op->children[0], indent + 3);
    spaces(indent);
    printf("%s at %p locals=%p outer=%p\n",
@@ -241,7 +243,7 @@ find_var(const slang_variable_scope *s, slang_atom name)
 void
 slang_print_tree(const slang_operation *op, int indent)
 {
-   int i;
+   GLuint i;
 
    switch (op->type) {
 
@@ -260,14 +262,13 @@ slang_print_tree(const slang_operation *op, int indent)
 
    case SLANG_OPER_BLOCK_NEW_SCOPE:
       spaces(indent);
-      printf("{{ // new scope  locals=%p: ", (void*)op->locals);
-      {
-         int i;
-         for (i = 0; i < op->locals->num_variables; i++) {
-            printf("%s ", (char *) op->locals->variables[i]->a_name);
-         }
-         printf("\n");
+      printf("{{ // new scope  locals=%p outer=%p: ",
+             (void *) op->locals,
+             (void *) op->locals->outer_scope);
+      for (i = 0; i < op->locals->num_variables; i++) {
+         printf("%s ", (char *) op->locals->variables[i]->a_name);
       }
+      printf("\n");
       print_generic(op, NULL, indent+3);
       spaces(indent);
       printf("}}\n");
@@ -665,15 +666,15 @@ slang_print_tree(const slang_operation *op, int indent)
 void
 slang_print_function(const slang_function *f, GLboolean body)
 {
-   int i;
+   GLuint i;
 
 #if 0
    if (_mesa_strcmp((char *) f->header.a_name, "main") != 0)
      return;
 #endif
 
-   printf("FUNCTION %s (\n",
-          (char *) f->header.a_name);
+   printf("FUNCTION %s ( scope=%p\n",
+          (char *) f->header.a_name, (void *) f->parameters);
 
    for (i = 0; i < f->param_count; i++) {
       print_variable(f->parameters->variables[i], 3);
diff --git a/src/mesa/shader/slang/slang_simplify.c b/src/mesa/shader/slang/slang_simplify.c
index 158d6bc8cf..88ca83d288 100644
--- a/src/mesa/shader/slang/slang_simplify.c
+++ b/src/mesa/shader/slang/slang_simplify.c
@@ -76,7 +76,7 @@ _slang_lookup_constant(const char *name)
    for (i = 0; info[i].Name; i++) {
       if (strcmp(info[i].Name, name) == 0) {
          /* found */
-         GLint value = -1.0;
+         GLint value = -1;
          _mesa_GetIntegerv(info[i].Token, &value);
          ASSERT(value >= 0);  /* sanity check that glGetFloatv worked */
          return value / info[i].Divisor;
@@ -110,7 +110,7 @@ _slang_simplify(slang_operation *oper,
          oper->literal[0] =
          oper->literal[1] =
          oper->literal[2] =
-         oper->literal[3] = value;
+         oper->literal[3] = (GLfloat) value;
          oper->type = SLANG_OPER_LITERAL_INT;
          return;
       }
@@ -380,7 +380,7 @@ _slang_adapt_call(slang_operation *callOper, const slang_function *fun,
                                        &origArg);
                   callOper->children[i + j].children[1].type
                      = SLANG_OPER_LITERAL_INT;
-                  callOper->children[i + j].children[1].literal[0] = j;
+                  callOper->children[i + j].children[1].literal[0] = (GLfloat) j;
                }
 
             }
@@ -394,11 +394,11 @@ _slang_adapt_call(slang_operation *callOper, const slang_function *fun,
       }
    }
 
-   if (callOper->num_children < numParams) {
+   if (callOper->num_children < (GLuint) numParams) {
       /* still not enough args for all params */
       return GL_FALSE;
    }
-   else if (callOper->num_children > numParams) {
+   else if (callOper->num_children > (GLuint) numParams) {
       /* now too many arguments */
       /* XXX this isn't always an error, see spec */
       return GL_FALSE;
diff --git a/src/mesa/shader/slang/slang_vartable.c b/src/mesa/shader/slang/slang_vartable.c
index bb4d2d656c..68b4e00be0 100644
--- a/src/mesa/shader/slang/slang_vartable.c
+++ b/src/mesa/shader/slang/slang_vartable.c
@@ -1,6 +1,7 @@
 
 #include "main/imports.h"
-#include "shader/prog_instruction.h"
+#include "shader/program.h"
+#include "shader/prog_print.h"
 #include "slang_compile.h"
 #include "slang_compile_variable.h"
 #include "slang_mem.h"
@@ -129,7 +130,7 @@ _slang_pop_var_table(slang_var_table *vt)
       /* just verify that any remaining allocations in this scope 
        * were for temps
        */
-      for (i = 0; i < vt->MaxRegisters * 4; i++) {
+      for (i = 0; i < (int) vt->MaxRegisters * 4; i++) {
          if (t->Temps[i] != FREE && t->Parent->Temps[i] == FREE) {
             if (dbg) printf("  Free reg %d\n", i/4);
             assert(t->Temps[i] == TEMP);
@@ -206,7 +207,7 @@ alloc_reg(slang_var_table *vt, GLint size, GLboolean isTemp)
 
    for (i = 0; i <= vt->MaxRegisters * 4 - size; i += step) {
       GLuint found = 0;
-      for (j = 0; j < size; j++) {
+      for (j = 0; j < (GLuint) size; j++) {
          if (i + j < vt->MaxRegisters * 4 && t->Temps[i + j] == FREE) {
             found++;
          }
@@ -218,7 +219,7 @@ alloc_reg(slang_var_table *vt, GLint size, GLboolean isTemp)
          /* found block of size free regs */
          if (size > 1)
             assert(i % 4 == 0);
-         for (j = 0; j < size; j++)
+         for (j = 0; j < (GLuint) size; j++)
             t->Temps[i + j] = isTemp ? TEMP : VAR;
          assert(i < MAX_PROGRAM_TEMPS * 4);
          t->ValSize[i] = size;
@@ -247,14 +248,25 @@ _slang_alloc_var(slang_var_table *vt, slang_ir_storage *store)
    if (store->Size == 1) {
       const GLuint comp = i % 4;
       store->Swizzle = MAKE_SWIZZLE4(comp, comp, comp, comp);
-      if (dbg) printf("Alloc var sz %d at %d.%c (level %d)\n",
-                      store->Size, store->Index, "xyzw"[comp], t->Level);
+   }
+   else if (store->Size == 2) {
+      store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y,
+                                     SWIZZLE_NIL, SWIZZLE_NIL);
+   }
+   else if (store->Size == 3) {
+      store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y,
+                                     SWIZZLE_Z, SWIZZLE_NIL);
    }
    else {
       store->Swizzle = SWIZZLE_NOOP;
-      if (dbg) printf("Alloc var sz %d at %d.xyzw (level %d)\n",
-                      store->Size, store->Index, t->Level);
    }
+
+   if (dbg)
+      printf("Alloc var sz %d at %d.%s (level %d)\n",
+             store->Size, store->Index,
+             _mesa_swizzle_string(store->Swizzle, 0, 0),
+             t->Level);
+
    return GL_TRUE;
 }
 
@@ -279,6 +291,7 @@ _slang_alloc_temp(slang_var_table *vt, slang_ir_storage *store)
                       store->Size, store->Index, "xyzw"[comp], t->Level);
    }
    else {
+      /* XXX improve swizzled for size=2/3, use for writemask... */
       store->Swizzle = SWIZZLE_NOOP;
       if (dbg) printf("Alloc temp sz %d at %d.xyzw (level %d)\n",
                       store->Size, store->Index, t->Level);
@@ -313,7 +326,7 @@ _slang_free_temp(slang_var_table *vt, slang_ir_storage *store)
    else {
       /*assert(store->Swizzle == SWIZZLE_NOOP);*/
       assert(t->ValSize[r*4] == store->Size);
-      for (i = 0; i < store->Size; i++) {
+      for (i = 0; i < (GLuint) store->Size; i++) {
          assert(t->Temps[r * 4 + i] == TEMP);
          t->Temps[r * 4 + i] = FREE;
       }
@@ -327,7 +340,7 @@ _slang_is_temp(const slang_var_table *vt, const slang_ir_storage *store)
    struct table *t = vt->Top;
    GLuint comp;
    assert(store->Index >= 0);
-   assert(store->Index < vt->MaxRegisters);
+   assert(store->Index < (int) vt->MaxRegisters);
    if (store->Swizzle == SWIZZLE_NOOP)
       comp = 0;
    else
diff --git a/src/mesa/state_tracker/st_atom_framebuffer.c b/src/mesa/state_tracker/st_atom_framebuffer.c
index d46c3ee16c..80df3b0506 100644
--- a/src/mesa/state_tracker/st_atom_framebuffer.c
+++ b/src/mesa/state_tracker/st_atom_framebuffer.c
@@ -59,7 +59,7 @@ update_renderbuffer_surface(struct st_context *st,
        strb->surface->texture != texture ||
        strb->surface->width != rtt_width ||
        strb->surface->height != rtt_height) {
-      int level;
+      GLuint level;
       /* find matching mipmap level size */
       for (level = 0; level <= texture->last_level; level++) {
          if (texture->width[level] == rtt_width &&
diff --git a/src/mesa/state_tracker/st_atom_pixeltransfer.c b/src/mesa/state_tracker/st_atom_pixeltransfer.c
index e4de875e8c..a357b71677 100644
--- a/src/mesa/state_tracker/st_atom_pixeltransfer.c
+++ b/src/mesa/state_tracker/st_atom_pixeltransfer.c
@@ -122,7 +122,7 @@ create_color_map_texture(GLcontext *ctx)
    const uint texSize = 256; /* simple, and usually perfect */
 
    /* find an RGBA texture format */
-   format = st_choose_format(pipe, GL_RGBA, PIPE_TEXTURE);
+   format = st_choose_format(pipe, GL_RGBA, PIPE_TEXTURE_2D, PIPE_TEXTURE_USAGE_SAMPLER);
 
    /* create texture for color map/table */
    pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, format, 0,
diff --git a/src/mesa/state_tracker/st_atom_rasterizer.c b/src/mesa/state_tracker/st_atom_rasterizer.c
index ff40bb4312..9f4e1c1c69 100644
--- a/src/mesa/state_tracker/st_atom_rasterizer.c
+++ b/src/mesa/state_tracker/st_atom_rasterizer.c
@@ -188,7 +188,7 @@ static void update_raster_state( struct st_context *st )
    {
       GLfloat mrd = (ctx->DrawBuffer ? 
 		     ctx->DrawBuffer->_MRD : 
-		     1.0);
+		     1.0f);
 
       raster->offset_units = ctx->Polygon.OffsetFactor * mrd;
       raster->offset_scale = (ctx->Polygon.OffsetUnits * mrd *
diff --git a/src/mesa/state_tracker/st_atom_viewport.c b/src/mesa/state_tracker/st_atom_viewport.c
index b105909e96..8b9f1abda4 100644
--- a/src/mesa/state_tracker/st_atom_viewport.c
+++ b/src/mesa/state_tracker/st_atom_viewport.c
@@ -62,9 +62,9 @@ update_viewport( struct st_context *st )
       GLfloat x = (GLfloat)ctx->Viewport.X;
       GLfloat y = (GLfloat)ctx->Viewport.Y;
       GLfloat z = ctx->Viewport.Near;
-      GLfloat half_width = (GLfloat)ctx->Viewport.Width / 2.0;
-      GLfloat half_height = (GLfloat)ctx->Viewport.Height / 2.0;
-      GLfloat half_depth = (GLfloat)(ctx->Viewport.Far - ctx->Viewport.Near) / 2.0;
+      GLfloat half_width = (GLfloat)ctx->Viewport.Width / 2.0f;
+      GLfloat half_height = (GLfloat)ctx->Viewport.Height / 2.0f;
+      GLfloat half_depth = (GLfloat)(ctx->Viewport.Far - ctx->Viewport.Near) / 2.0f;
       
       st->state.viewport.scale[0] = half_width;
       st->state.viewport.scale[1] = half_height * yScale;
diff --git a/src/mesa/state_tracker/st_cb_accum.c b/src/mesa/state_tracker/st_cb_accum.c
index c0e8c6bf33..a992e08ff6 100644
--- a/src/mesa/state_tracker/st_cb_accum.c
+++ b/src/mesa/state_tracker/st_cb_accum.c
@@ -290,7 +290,7 @@ accum_return(GLcontext *ctx, GLfloat value,
       for (ch = 0; ch < 4; ch++) {
          if (colormask[ch]) {
             GLfloat val = abuf[i * 4 + ch] * value;
-            abuf[i * 4 + ch] = CLAMP(val, 0.0, 1.0);
+            abuf[i * 4 + ch] = CLAMP(val, 0.0f, 1.0f);
          }
          else {
             abuf[i * 4 + ch] = cbuf[i * 4 + ch];
diff --git a/src/mesa/state_tracker/st_cb_bitmap.c b/src/mesa/state_tracker/st_cb_bitmap.c
index de86832342..d5696a909f 100644
--- a/src/mesa/state_tracker/st_cb_bitmap.c
+++ b/src/mesa/state_tracker/st_cb_bitmap.c
@@ -746,7 +746,8 @@ st_init_bitmap(struct st_context *st)
    st->bitmap.rasterizer.bypass_vs = 1;
 
    /* find a usable texture format */
-   if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, PIPE_TEXTURE)) {
+   if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, PIPE_TEXTURE_2D, 
+                                   PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
       st->bitmap.tex_format = PIPE_FORMAT_I8_UNORM;
    }
    else {
diff --git a/src/mesa/state_tracker/st_cb_clear.c b/src/mesa/state_tracker/st_cb_clear.c
index cdfcdcee72..e475f022d3 100644
--- a/src/mesa/state_tracker/st_cb_clear.c
+++ b/src/mesa/state_tracker/st_cb_clear.c
@@ -203,17 +203,17 @@ clear_with_quad(GLcontext *ctx,
                 GLboolean color, GLboolean depth, GLboolean stencil)
 {
    struct st_context *st = ctx->st;
-   const GLfloat x0 = ctx->DrawBuffer->_Xmin;
-   const GLfloat x1 = ctx->DrawBuffer->_Xmax;
+   const GLfloat x0 = (GLfloat) ctx->DrawBuffer->_Xmin;
+   const GLfloat x1 = (GLfloat) ctx->DrawBuffer->_Xmax;
    GLfloat y0, y1;
 
    if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
-      y0 = ctx->DrawBuffer->Height - ctx->DrawBuffer->_Ymax;
-      y1 = ctx->DrawBuffer->Height - ctx->DrawBuffer->_Ymin;
+      y0 = (GLfloat) (ctx->DrawBuffer->Height - ctx->DrawBuffer->_Ymax);
+      y1 = (GLfloat) (ctx->DrawBuffer->Height - ctx->DrawBuffer->_Ymin);
    }
    else {
-      y0 = ctx->DrawBuffer->_Ymin;
-      y1 = ctx->DrawBuffer->_Ymax;
+      y0 = (GLfloat) ctx->DrawBuffer->_Ymin;
+      y1 = (GLfloat) ctx->DrawBuffer->_Ymax;
    }
 
    /*
@@ -286,7 +286,7 @@ clear_with_quad(GLcontext *ctx,
    cso_set_vertex_shader_handle(st->cso_context, st->clear.vs);
 
    /* draw quad matching scissor rect (XXX verify coord round-off) */
-   draw_quad(ctx, x0, y0, x1, y1, ctx->Depth.Clear, ctx->Color.ClearColor);
+   draw_quad(ctx, x0, y0, x1, y1, (GLfloat) ctx->Depth.Clear, ctx->Color.ClearColor);
 
    /* Restore pipe state */
    cso_restore_blend(st->cso_context);
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
index 6b0137dcf8..db0c9fbd09 100644
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -423,8 +423,8 @@ draw_quad(GLcontext *ctx, GLfloat x0, GLfloat y0, GLfloat z,
    /* setup vertex data */
    {
       const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
-      const GLfloat fb_width = fb->Width;
-      const GLfloat fb_height = fb->Height;
+      const GLfloat fb_width = (GLfloat) fb->Width;
+      const GLfloat fb_height = (GLfloat) fb->Height;
       const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f;
       const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f;
       const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f;
@@ -571,8 +571,8 @@ draw_textured_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z,
 
    /* viewport state: viewport matching window dims */
    {
-      const float width = ctx->DrawBuffer->Width;
-      const float height = ctx->DrawBuffer->Height;
+      const float width = (float) ctx->DrawBuffer->Width;
+      const float height = (float) ctx->DrawBuffer->Height;
       struct pipe_viewport_state vp;
       vp.scale[0] =  0.5f * width;
       vp.scale[1] = -0.5f * height;
@@ -600,9 +600,9 @@ draw_textured_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z,
     * Recall that these coords are transformed by the current
     * vertex shader and viewport transformation.
     */
-   x0 = x;
+   x0 = (GLfloat) x;
    x1 = x + width * ctx->Pixel.ZoomX;
-   y0 = y;
+   y0 = (GLfloat) y;
    y1 = y + height * ctx->Pixel.ZoomY;
    //if(!color)
    draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex);
@@ -995,18 +995,21 @@ st_CopyPixels(GLcontext *ctx, GLint srcx, GLint srcy,
 
    srcFormat = rbRead->texture->format;
 
-   if (screen->is_format_supported(screen, srcFormat, PIPE_TEXTURE)) {
+   if (screen->is_format_supported(screen, srcFormat, PIPE_TEXTURE_2D, 
+                                   PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
       texFormat = srcFormat;
    }
    else {
       /* srcFormat can't be used as a texture format */
       if (type == GL_DEPTH) {
-         texFormat = st_choose_format(pipe, GL_DEPTH_COMPONENT, PIPE_TEXTURE);
+         texFormat = st_choose_format(pipe, GL_DEPTH_COMPONENT, PIPE_TEXTURE_2D, 
+                                      PIPE_TEXTURE_USAGE_DEPTH_STENCIL);
          assert(texFormat != PIPE_FORMAT_NONE); /* XXX no depth texture formats??? */
       }
       else {
          /* default color format */
-         texFormat = st_choose_format(pipe, GL_RGBA, PIPE_TEXTURE);
+         texFormat = st_choose_format(pipe, GL_RGBA, PIPE_TEXTURE_2D, 
+                                      PIPE_TEXTURE_USAGE_SAMPLER);
          assert(texFormat != PIPE_FORMAT_NONE);
       }
    }
diff --git a/src/mesa/state_tracker/st_cb_rasterpos.c b/src/mesa/state_tracker/st_cb_rasterpos.c
index 3cb7b68bea..3b30c2a61b 100644
--- a/src/mesa/state_tracker/st_cb_rasterpos.c
+++ b/src/mesa/state_tracker/st_cb_rasterpos.c
@@ -135,7 +135,7 @@ rastpos_point(struct draw_stage *stage, struct prim_header *prim)
    struct rastpos_stage *rs = rastpos_stage(stage);
    GLcontext *ctx = rs->ctx;
    struct st_context *st = ctx->st;
-   const GLfloat height = ctx->DrawBuffer->Height;
+   const GLfloat height = (GLfloat) ctx->DrawBuffer->Height;
    const GLuint *outputMapping = st->vertex_result_to_slot;
    const GLfloat *pos;
    GLuint i;
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 73f8b8f788..1f94a0b9ef 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -285,7 +285,7 @@ guess_and_alloc_texture(struct st_context *st,
    assert(!stObj->pt);
 
    if (stObj->pt &&
-       stImage->level > stObj->base.BaseLevel &&
+       (GLint) stImage->level > stObj->base.BaseLevel &&
        (stImage->base.Width == 1 ||
         (stObj->base.Target != GL_TEXTURE_1D &&
          stImage->base.Height == 1) ||
@@ -296,7 +296,7 @@ guess_and_alloc_texture(struct st_context *st,
    /* If this image disrespects BaseLevel, allocate from level zero.
     * Usually BaseLevel == 0, so it's unlikely to happen.
     */
-   if (stImage->level < stObj->base.BaseLevel)
+   if ((GLint) stImage->level < stObj->base.BaseLevel)
       firstLevel = 0;
    else
       firstLevel = stObj->base.BaseLevel;
@@ -810,7 +810,7 @@ st_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
 						    texImage->Height, format,
 						    type);
    GLuint depth;
-   int i;
+   GLuint i;
    GLubyte *dest;
 
    /* Map */
@@ -1210,9 +1210,13 @@ do_copy_texsubimage(GLcontext *ctx,
          use_fallback = GL_FALSE;
       }
       else if (screen->is_format_supported(screen, strb->surface->format,
-                                           PIPE_TEXTURE) &&
+                                           PIPE_TEXTURE_2D, 
+                                           PIPE_TEXTURE_USAGE_SAMPLER,
+                                           0) &&
                screen->is_format_supported(screen, dest_surface->format,
-                                           PIPE_SURFACE)) {
+                                           PIPE_TEXTURE_2D, 
+                                           PIPE_TEXTURE_USAGE_RENDER_TARGET,
+                                           0)) {
          boolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP);
          int srcY0, srcY1;
          if (do_flip) {
@@ -1383,7 +1387,7 @@ calculate_first_last_level(struct st_texture_object *stObj)
       }
       else {
          firstLevel = 0;
-         lastLevel = MIN2(tObj->MaxLevel, tObj->Image[0][tObj->BaseLevel]->WidthLog2);
+         lastLevel = MIN2(tObj->MaxLevel, (int) tObj->Image[0][tObj->BaseLevel]->WidthLog2);
       }
       break;
    case GL_TEXTURE_RECTANGLE_NV:
diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c
index 8b30e35684..00447fff08 100644
--- a/src/mesa/state_tracker/st_context.c
+++ b/src/mesa/state_tracker/st_context.c
@@ -217,7 +217,10 @@ void st_destroy_context( struct st_context *st )
 
    cso_destroy_context(cso);
 
+   /* Temporary workaround for mismatched pipe create and pipe destroy */
+#if !defined(PIPE_SUBSYSTEM_WINDOWS_USER) && !defined(PIPE_SUBSYSTEM_WINDOWS_CE)
    pipe->destroy( pipe );
+#endif
 
    free(ctx);
 }
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index d804d2b453..cacf972a1b 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -213,18 +213,24 @@ void st_init_extensions(struct st_context *st)
    }
 
    if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
-                                   PIPE_TEXTURE)) {
+                                   PIPE_TEXTURE_2D, 
+                                   PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
       ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
    }
 
 #if 01
    if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
-                                   PIPE_TEXTURE)) {
+                                   PIPE_TEXTURE_2D, 
+                                   PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
       ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE;
    }
 #endif
-   if (screen->is_format_supported(screen, PIPE_FORMAT_YCBCR, PIPE_TEXTURE) ||
-       screen->is_format_supported(screen, PIPE_FORMAT_YCBCR_REV, PIPE_TEXTURE)) {
+   if (screen->is_format_supported(screen, PIPE_FORMAT_YCBCR, 
+                                   PIPE_TEXTURE_2D, 
+                                   PIPE_TEXTURE_USAGE_SAMPLER, 0) ||
+       screen->is_format_supported(screen, PIPE_FORMAT_YCBCR_REV, 
+                                   PIPE_TEXTURE_2D, 
+                                   PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
       ctx->Extensions.MESA_ycbcr_texture = GL_TRUE;
    }
 
diff --git a/src/mesa/state_tracker/st_format.c b/src/mesa/state_tracker/st_format.c
index 50a06868df..b6d97ef659 100644
--- a/src/mesa/state_tracker/st_format.c
+++ b/src/mesa/state_tracker/st_format.c
@@ -281,7 +281,10 @@ st_mesa_format_to_pipe_format(GLuint mesaFormat)
  * Find an RGBA format supported by the context/winsys.
  */
 static enum pipe_format
-default_rgba_format(struct pipe_screen *screen, uint type)
+default_rgba_format(struct pipe_screen *screen, 
+                    enum pipe_texture_target target,
+                    unsigned tex_usage, 
+                    unsigned geom_flags)
 {
    static const enum pipe_format colorFormats[] = {
       PIPE_FORMAT_A8R8G8B8_UNORM,
@@ -291,7 +294,7 @@ default_rgba_format(struct pipe_screen *screen, uint type)
    };
    uint i;
    for (i = 0; i < Elements(colorFormats); i++) {
-      if (screen->is_format_supported( screen, colorFormats[i], type )) {
+      if (screen->is_format_supported( screen, colorFormats[i], target, tex_usage, geom_flags )) {
          return colorFormats[i];
       }
    }
@@ -303,13 +306,16 @@ default_rgba_format(struct pipe_screen *screen, uint type)
  * Search list of formats for first RGBA format with >8 bits/channel.
  */
 static enum pipe_format
-default_deep_rgba_format(struct pipe_screen *screen, uint type)
+default_deep_rgba_format(struct pipe_screen *screen, 
+                         enum pipe_texture_target target,
+                         unsigned tex_usage, 
+                         unsigned geom_flags)
 {
-   if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_SNORM, type)) {
+   if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_SNORM, target, tex_usage, geom_flags)) {
       return PIPE_FORMAT_R16G16B16A16_SNORM;
    }
-   if (type == PIPE_TEXTURE)
-      return default_rgba_format(screen, type);
+   if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET)
+      return default_rgba_format(screen, target, tex_usage, geom_flags);
    else
       return PIPE_FORMAT_NONE;
 }
@@ -319,7 +325,10 @@ default_deep_rgba_format(struct pipe_screen *screen, uint type)
  * Find an Z format supported by the context/winsys.
  */
 static enum pipe_format
-default_depth_format(struct pipe_screen *screen, uint type)
+default_depth_format(struct pipe_screen *screen, 
+                     enum pipe_texture_target target,
+                     unsigned tex_usage, 
+                     unsigned geom_flags)
 {
    static const enum pipe_format zFormats[] = {
       PIPE_FORMAT_Z16_UNORM,
@@ -329,7 +338,7 @@ default_depth_format(struct pipe_screen *screen, uint type)
    };
    uint i;
    for (i = 0; i < Elements(zFormats); i++) {
-      if (screen->is_format_supported( screen, zFormats[i], type )) {
+      if (screen->is_format_supported( screen, zFormats[i], target, tex_usage, geom_flags )) {
          return zFormats[i];
       }
    }
@@ -343,12 +352,10 @@ default_depth_format(struct pipe_screen *screen, uint type)
  */
 enum pipe_format
 st_choose_format(struct pipe_context *pipe, GLint internalFormat,
-                 uint surfType)
+                 enum pipe_texture_target target, unsigned tex_usage)
 {
    struct pipe_screen *screen = pipe->screen;
-
-   assert(surfType == PIPE_SURFACE ||
-          surfType == PIPE_TEXTURE);
+   unsigned geom_flags = 0;
 
    switch (internalFormat) {
    case 4:
@@ -360,38 +367,38 @@ st_choose_format(struct pipe_context *pipe, GLint internalFormat,
    case GL_RGBA8:
    case GL_RGB10_A2:
    case GL_RGBA12:
-      return default_rgba_format( screen, surfType );
+      return default_rgba_format( screen, target, tex_usage, geom_flags );
    case GL_RGBA16:
-      if (surfType == PIPE_SURFACE)
-         return default_deep_rgba_format( screen, surfType );
+      if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET)
+         return default_deep_rgba_format( screen, target, tex_usage, geom_flags );
       else
-         return default_rgba_format( screen, surfType );
+         return default_rgba_format( screen, target, tex_usage, geom_flags );
 
    case GL_RGBA4:
    case GL_RGBA2:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_A4R4G4B4_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_A4R4G4B4_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_A4R4G4B4_UNORM;
-      return default_rgba_format( screen, surfType );
+      return default_rgba_format( screen, target, tex_usage, geom_flags );
 
    case GL_RGB5_A1:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_A1R5G5B5_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_A1R5G5B5_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_A1R5G5B5_UNORM;
-      return default_rgba_format( screen, surfType );
+      return default_rgba_format( screen, target, tex_usage, geom_flags );
 
    case GL_RGB8:
    case GL_RGB10:
    case GL_RGB12:
    case GL_RGB16:
-      return default_rgba_format( screen, surfType );
+      return default_rgba_format( screen, target, tex_usage, geom_flags );
 
    case GL_RGB5:
    case GL_RGB4:
    case GL_R3_G3_B2:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_A1R5G5B5_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_A1R5G5B5_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_A1R5G5B5_UNORM;
-      if (screen->is_format_supported( screen, PIPE_FORMAT_R5G6B5_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_R5G6B5_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_R5G6B5_UNORM;
-      return default_rgba_format( screen, surfType );
+      return default_rgba_format( screen, target, tex_usage, geom_flags );
 
    case GL_ALPHA:
    case GL_ALPHA4:
@@ -399,9 +406,9 @@ st_choose_format(struct pipe_context *pipe, GLint internalFormat,
    case GL_ALPHA12:
    case GL_ALPHA16:
    case GL_COMPRESSED_ALPHA:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_A8_UNORM;
-      return default_rgba_format( screen, surfType );
+      return default_rgba_format( screen, target, tex_usage, geom_flags );
 
    case 1:
    case GL_LUMINANCE:
@@ -410,9 +417,9 @@ st_choose_format(struct pipe_context *pipe, GLint internalFormat,
    case GL_LUMINANCE12:
    case GL_LUMINANCE16:
    case GL_COMPRESSED_LUMINANCE:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_L8_UNORM;
-      return default_rgba_format( screen, surfType );
+      return default_rgba_format( screen, target, tex_usage, geom_flags );
 
    case 2:
    case GL_LUMINANCE_ALPHA:
@@ -423,9 +430,9 @@ st_choose_format(struct pipe_context *pipe, GLint internalFormat,
    case GL_LUMINANCE12_ALPHA12:
    case GL_LUMINANCE16_ALPHA16:
    case GL_COMPRESSED_LUMINANCE_ALPHA:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_A8L8_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_A8L8_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_A8L8_UNORM;
-      return default_rgba_format( screen, surfType );
+      return default_rgba_format( screen, target, tex_usage, geom_flags );
 
    case GL_INTENSITY:
    case GL_INTENSITY4:
@@ -433,17 +440,17 @@ st_choose_format(struct pipe_context *pipe, GLint internalFormat,
    case GL_INTENSITY12:
    case GL_INTENSITY16:
    case GL_COMPRESSED_INTENSITY:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_I8_UNORM;
-      return default_rgba_format( screen, surfType );
+      return default_rgba_format( screen, target, tex_usage, geom_flags );
 
    case GL_YCBCR_MESA:
       if (screen->is_format_supported(screen, PIPE_FORMAT_YCBCR,
-                                      PIPE_TEXTURE)) {
+                                      target, tex_usage, geom_flags)) {
          return PIPE_FORMAT_YCBCR;
       }
       if (screen->is_format_supported(screen, PIPE_FORMAT_YCBCR_REV,
-                                      PIPE_TEXTURE)) {
+                                      target, tex_usage, geom_flags)) {
          return PIPE_FORMAT_YCBCR_REV;
       }
       return PIPE_FORMAT_NONE;
@@ -472,40 +479,40 @@ st_choose_format(struct pipe_context *pipe, GLint internalFormat,
 #endif
 
    case GL_DEPTH_COMPONENT16:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_Z16_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_Z16_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_Z16_UNORM;
       /* fall-through */
    case GL_DEPTH_COMPONENT24:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_S8Z24_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_S8Z24_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_S8Z24_UNORM;
-      if (screen->is_format_supported( screen, PIPE_FORMAT_Z24S8_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_Z24S8_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_Z24S8_UNORM;
       /* fall-through */
    case GL_DEPTH_COMPONENT32:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_Z32_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_Z32_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_Z32_UNORM;
       /* fall-through */
    case GL_DEPTH_COMPONENT:
-      return default_depth_format( screen, surfType );
+      return default_depth_format( screen, target, tex_usage, geom_flags );
 
    case GL_STENCIL_INDEX:
    case GL_STENCIL_INDEX1_EXT:
    case GL_STENCIL_INDEX4_EXT:
    case GL_STENCIL_INDEX8_EXT:
    case GL_STENCIL_INDEX16_EXT:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_S8_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_S8_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_S8_UNORM;
-      if (screen->is_format_supported( screen, PIPE_FORMAT_S8Z24_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_S8Z24_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_S8Z24_UNORM;
-      if (screen->is_format_supported( screen, PIPE_FORMAT_Z24S8_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_Z24S8_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_Z24S8_UNORM;
       return PIPE_FORMAT_NONE;
 
    case GL_DEPTH_STENCIL_EXT:
    case GL_DEPTH24_STENCIL8_EXT:
-      if (screen->is_format_supported( screen, PIPE_FORMAT_S8Z24_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_S8Z24_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_S8Z24_UNORM;
-      if (screen->is_format_supported( screen, PIPE_FORMAT_Z24S8_UNORM, surfType ))
+      if (screen->is_format_supported( screen, PIPE_FORMAT_Z24S8_UNORM, target, tex_usage, geom_flags ))
          return PIPE_FORMAT_Z24S8_UNORM;
       return PIPE_FORMAT_NONE;
 
@@ -521,7 +528,8 @@ st_choose_format(struct pipe_context *pipe, GLint internalFormat,
 enum pipe_format
 st_choose_renderbuffer_format(struct pipe_context *pipe, GLint internalFormat)
 {
-   return st_choose_format(pipe, internalFormat, PIPE_SURFACE);
+   return st_choose_format(pipe, internalFormat, PIPE_TEXTURE_2D, 
+                           PIPE_TEXTURE_USAGE_RENDER_TARGET);
 }
 
 
@@ -587,7 +595,8 @@ st_ChooseTextureFormat(GLcontext *ctx, GLint internalFormat,
    (void) format;
    (void) type;
 
-   pFormat = st_choose_format(ctx->st->pipe, internalFormat, PIPE_TEXTURE);
+   pFormat = st_choose_format(ctx->st->pipe, internalFormat, PIPE_TEXTURE_2D, 
+                              PIPE_TEXTURE_USAGE_SAMPLER);
    if (pFormat == PIPE_FORMAT_NONE)
       return NULL;
 
diff --git a/src/mesa/state_tracker/st_format.h b/src/mesa/state_tracker/st_format.h
index ff0fd042db..3f5ac3201b 100644
--- a/src/mesa/state_tracker/st_format.h
+++ b/src/mesa/state_tracker/st_format.h
@@ -65,7 +65,7 @@ st_mesa_format_to_pipe_format(GLuint mesaFormat);
 
 extern enum pipe_format
 st_choose_format(struct pipe_context *pipe, GLint internalFormat,
-                 uint surfType);
+                 enum pipe_texture_target target, unsigned tex_usage);
 
 extern enum pipe_format
 st_choose_renderbuffer_format(struct pipe_context *pipe, GLint internalFormat);
diff --git a/src/mesa/state_tracker/st_framebuffer.c b/src/mesa/state_tracker/st_framebuffer.c
index 1994a1c826..039a9cfe89 100644
--- a/src/mesa/state_tracker/st_framebuffer.c
+++ b/src/mesa/state_tracker/st_framebuffer.c
@@ -52,8 +52,12 @@ st_create_framebuffer( const __GLcontextModes *visual,
    struct st_framebuffer *stfb = CALLOC_STRUCT(st_framebuffer);
    if (stfb) {
       int samples = 0;
+      const char *msaa_override = _mesa_getenv("__GL_FSAA_MODE");
       _mesa_initialize_framebuffer(&stfb->Base, visual);
       if (visual->sampleBuffers) samples = visual->samples;
+      if (msaa_override) {
+         samples = _mesa_atoi(msaa_override);
+      }
 
       {
          /* fake frontbuffer */
diff --git a/src/mesa/state_tracker/st_gen_mipmap.c b/src/mesa/state_tracker/st_gen_mipmap.c
index 2fc00df429..6db9bc0dd5 100644
--- a/src/mesa/state_tracker/st_gen_mipmap.c
+++ b/src/mesa/state_tracker/st_gen_mipmap.c
@@ -86,7 +86,8 @@ st_render_mipmap(struct st_context *st,
    assert(target != GL_TEXTURE_3D); /* not done yet */
 
    /* check if we can render in the texture's format */
-   if (!screen->is_format_supported(screen, pt->format, PIPE_SURFACE)) {
+   if (!screen->is_format_supported(screen, pt->format, target,
+                                    PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
       return FALSE;
    }
 
diff --git a/src/mesa/state_tracker/st_texture.c b/src/mesa/state_tracker/st_texture.c
index 8222826e7a..3e5054ecd2 100644
--- a/src/mesa/state_tracker/st_texture.c
+++ b/src/mesa/state_tracker/st_texture.c
@@ -88,7 +88,8 @@ st_texture_create(struct st_context *st,
        _mesa_lookup_enum_by_nr(format), last_level);
 
    assert(format);
-   assert(screen->is_format_supported(screen, format, PIPE_TEXTURE));
+   assert(screen->is_format_supported(screen, format, target, 
+                                      PIPE_TEXTURE_USAGE_SAMPLER, 0));
 
    memset(&pt, 0, sizeof(pt));
    pt.target = target;
diff --git a/src/mesa/x86/assyntax.h b/src/mesa/x86/assyntax.h
index 8eb47e41a1..524944f73a 100644
--- a/src/mesa/x86/assyntax.h
+++ b/src/mesa/x86/assyntax.h
@@ -985,7 +985,8 @@ SECTION _DATA public align=16 class=DATA use32 flat
 
 #if defined(Lynx) || (defined(SYSV) || defined(SVR4)) \
  || (defined(__linux__) || defined(__OS2ELF__)) && defined(__ELF__) \
- || defined(__FreeBSD__) && __FreeBSD__ >= 3
+ || (defined(__FreeBSD__) && __FreeBSD__ >= 3) \
+ || (defined(__NetBSD__) && defined(__ELF__))
 #define GLNAME(a)	a
 #else
 #define GLNAME(a)	CONCAT(_, a)
diff --git a/src/mesa/x86/common_x86.c b/src/mesa/x86/common_x86.c
index 0b2af0a370..0caa36a5a0 100644
--- a/src/mesa/x86/common_x86.c
+++ b/src/mesa/x86/common_x86.c
@@ -42,6 +42,11 @@
 #include <sys/types.h>
 #include <sys/sysctl.h>
 #endif
+#if defined(USE_SSE_ASM) && defined(__OpenBSD__)
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <machine/cpu.h>
+#endif
 
 #include "common_x86_asm.h"
 #include "imports.h"
@@ -113,6 +118,27 @@ static void check_os_sse_support( void )
       if (ret || !enabled)
          _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
    }
+#elif defined (__NetBSD__)
+   {
+      int ret, enabled;
+      size_t len = sizeof(enabled);
+      ret = sysctlbyname("machdep.sse", &enabled, &len, (void *)NULL, 0);
+      if (ret || !enabled)
+         _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
+   }
+#elif defined(__OpenBSD__)
+   {
+      int mib[2];
+      int ret, enabled;
+      size_t len = sizeof(enabled);
+
+      mib[0] = CTL_MACHDEP;
+      mib[1] = CPU_SSE;
+
+      ret = sysctl(mib, 2, &enabled, &len, NULL, 0);
+      if (ret || !enabled)
+         _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
+   }
 #elif defined(WIN32)
    LPTOP_LEVEL_EXCEPTION_FILTER oldFilter;