#!/usr/bin/python2 # (C) Copyright IBM Corporation 2004, 2005 # 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 # on 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 # IBM 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. # # Authors: # Ian Romanick import gl_XML import glX_XML import license import sys, getopt, copy def hash_pixel_function(func): """Generate a 'unique' key for a pixel function. The key is based on the parameters written in the command packet. This includes any padding that might be added for the original function and the 'NULL image' flag.""" [dim, junk, junk, junk, junk] = func.dimensions() d = (dim + 1) & ~1 h = "%uD%uD_" % (d - 1, d) for p in func.parameterIterator(1, 1): h = "%s%u" % (h, p.size()) if func.pad_after(p): h += "4" if func.image.img_null_flag: h += "_NF" n = func.name.replace("%uD" % (dim), "") n = "__glx_%s_%uD%uD" % (n, d - 1, d) return [h, n] class glXPixelFunctionUtility(glX_XML.glXFunction): """Dummy class used to generate pixel "utility" functions that are shared by multiple dimension image functions. For example, these objects are used to generate shared functions used to send GLX protocol for TexImage1D and TexImage2D, TexSubImage1D and TexSubImage2D, etc.""" def __init__(self, func, name): # The parameters to the utility function are the same as the # parameters to the real function except for the added "pad" # parameters. self.name = name self.image = copy.copy(func.image) self.fn_parameters = [] for p in gl_XML.glFunction.parameterIterator(func): self.fn_parameters.append(p) pad_name = func.pad_after(p) if pad_name: pad = copy.copy(p) pad.name = pad_name self.fn_parameters.append(pad) if self.image.height == None: self.image.height = "height" if self.image.img_yoff == None: self.image.img_yoff = "yoffset" if func.image.depth: if self.image.extent == None: self.image.extent = "extent" if self.image.img_woff == None: self.image.img_woff = "woffset" self.set_return_type( func.fn_return_type ) self.glx_rop = ~0 self.can_be_large = func.can_be_large self.count_parameter_list = func.count_parameter_list self.counter = func.counter self.img_reset = None return class PrintGlxProtoStubs(glX_XML.GlxProto): def __init__(self): glX_XML.GlxProto.__init__(self) self.last_category = "" self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004, 2005", "IBM") self.generic_sizes = [3, 4, 6, 8, 12, 16, 24, 32] self.pixel_stubs = {} self.debug = 0 return def printRealHeader(self): print '' print '#include ' print '#include "indirect.h"' print '#include "glxclient.h"' print '#include "indirect_size.h"' print '#include ' print '#ifdef USE_XCB' print '#include ' print '#include ' print '#include ' print '#endif /* USE_XCB */' print '' print '#define __GLX_PAD(n) (((n) + 3) & ~3)' print '' self.printFastcall() self.printNoinline() print '' print '#if !defined __GNUC__ || __GNUC__ < 3' print '# define __builtin_expect(x, y) x' print '#endif' print '' print '/* If the size and opcode values are known at compile-time, this will, on' print ' * x86 at least, emit them with a single instruction.' print ' */' print '#define emit_header(dest, op, size) \\' print ' do { union { short s[2]; int i; } temp; \\' print ' temp.s[0] = (size); temp.s[1] = (op); \\' print ' *((int *)(dest)) = temp.i; } while(0)' print '' print """NOINLINE CARD32 __glXReadReply( Display *dpy, size_t size, void * dest, GLboolean reply_is_always_array ) { xGLXSingleReply reply; (void) _XReply(dpy, (xReply *) & reply, 0, False); if (size != 0) { if ((reply.length > 0) || reply_is_always_array) { const GLint bytes = (reply_is_always_array) ? (4 * reply.length) : (reply.size * size); const GLint extra = 4 - (bytes & 3); _XRead(dpy, dest, bytes); if ( extra < 4 ) { _XEatData(dpy, extra); } } else { (void) memcpy( dest, &(reply.pad3), size); } } return reply.retval; } NOINLINE void __glXReadPixelReply( Display *dpy, __GLXcontext * gc, unsigned max_dim, GLint width, GLint height, GLint depth, GLenum format, GLenum type, void * dest, GLboolean dimensions_in_reply ) { xGLXSingleReply reply; GLint size; (void) _XReply(dpy, (xReply *) & reply, 0, False); if ( dimensions_in_reply ) { width = reply.pad3; height = reply.pad4; depth = reply.pad5; if ((height == 0) || (max_dim < 2)) { height = 1; } if ((depth == 0) || (max_dim < 3)) { depth = 1; } } size = reply.length * 4; if (size != 0) { void * buf = Xmalloc( size ); if ( buf == NULL ) { _XEatData(dpy, size); __glXSetError(gc, GL_OUT_OF_MEMORY); } else { const GLint extra = 4 - (size & 3); _XRead(dpy, buf, size); if ( extra < 4 ) { _XEatData(dpy, extra); } __glEmptyImage(gc, 3, width, height, depth, format, type, buf, dest); Xfree(buf); } } } #define X_GLXSingle 0 NOINLINE FASTCALL GLubyte * __glXSetupSingleRequest( __GLXcontext * gc, GLint sop, GLint cmdlen ) { xGLXSingleReq * req; Display * const dpy = gc->currentDpy; (void) __glXFlushRenderBuffer(gc, gc->pc); LockDisplay(dpy); GetReqExtra(GLXSingle, cmdlen, req); req->reqType = gc->majorOpcode; req->contextTag = gc->currentContextTag; req->glxCode = sop; return (GLubyte *)(req) + sz_xGLXSingleReq; } NOINLINE FASTCALL GLubyte * __glXSetupVendorRequest( __GLXcontext * gc, GLint code, GLint vop, GLint cmdlen ) { xGLXVendorPrivateReq * req; Display * const dpy = gc->currentDpy; (void) __glXFlushRenderBuffer(gc, gc->pc); LockDisplay(dpy); GetReqExtra(GLXVendorPrivate, cmdlen, req); req->reqType = gc->majorOpcode; req->glxCode = code; req->vendorCode = vop; req->contextTag = gc->currentContextTag; return (GLubyte *)(req) + sz_xGLXVendorPrivateReq; } const GLuint __glXDefaultPixelStore[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 1 }; #define zero (__glXDefaultPixelStore+0) #define one (__glXDefaultPixelStore+8) #define default_pixel_store_1D (__glXDefaultPixelStore+4) #define default_pixel_store_1D_size 20 #define default_pixel_store_2D (__glXDefaultPixelStore+4) #define default_pixel_store_2D_size 20 #define default_pixel_store_3D (__glXDefaultPixelStore+0) #define default_pixel_store_3D_size 36 #define default_pixel_store_4D (__glXDefaultPixelStore+0) #define default_pixel_store_4D_size 36 """ for size in self.generic_sizes: self.print_generic_function(size) return def printFunction(self, f): if f.client_handcode: return if f.glx_rop != 0 or f.vectorequiv != None: if f.image: self.printPixelFunction(f) else: self.printRenderFunction(f) elif f.glx_sop != 0 or f.glx_vendorpriv != 0: self.printSingleFunction(f) else: print "/* Missing GLX protocol for %s. */" % (f.name) def print_generic_function(self, n): size = (n + 3) & ~3 print """static FASTCALL NOINLINE void generic_%u_byte( GLint rop, const void * ptr ) { __GLXcontext * const gc = __glXGetCurrentContext(); const GLuint cmdlen = %u; emit_header(gc->pc, rop, cmdlen); (void) memcpy((void *)(gc->pc + 4), ptr, %u); gc->pc += cmdlen; if (__builtin_expect(gc->pc > gc->limit, 0)) { (void) __glXFlushRenderBuffer(gc, gc->pc); } } """ % (n, size + 4, size) def common_emit_one_arg(self, p, offset, pc, indent, adjust): t = p.p_type if p.is_array(): src_ptr = p.name else: src_ptr = "&" + p.name print '%s (void) memcpy((void *)(%s + %u), (void *)(%s), %s);' \ % (indent, pc, offset + adjust, src_ptr, p.size_string() ) def common_emit_args(self, f, pc, indent, adjust, skip_vla): offset = 0 if skip_vla: r = 1 else: r = 2 for p in f.parameterIterator(1, r): if p.name != f.img_reset: self.common_emit_one_arg(p, offset, pc, indent, adjust) offset += p.size() return offset def pixel_emit_args(self, f, pc, indent, adjust, dim, large): """Emit the arguments for a pixel function. This differs from common_emit_args in that pixel functions may require padding be inserted (i.e., for the missing width field for TexImage1D), and they may also require a 'NULL image' flag be inserted before the image data.""" offset = 0 for p in f.parameterIterator(1, 1): self.common_emit_one_arg(p, offset, pc, indent, adjust) offset += p.size() if f.pad_after(p): print '%s (void) memcpy((void *)(%s + %u), zero, 4);' % (indent, pc, offset + adjust) offset += 4 if f.image.img_null_flag: if large: print '%s (void) memcpy((void *)(%s + %u), zero, 4);' % (indent, pc, offset + adjust) else: print '%s (void) memcpy((void *)(%s + %u), (void *)((%s == NULL) ? one : zero), 4);' % (indent, pc, offset + adjust, f.image.name) offset += 4 return offset def large_emit_begin(self, indent, f, op_name = None): if not op_name: op_name = f.opcode_real_name() print '%s const GLint op = %s;' % (indent, op_name) print '%s const GLuint cmdlenLarge = cmdlen + 4;' % (indent) print '%s GLubyte * const pc = __glXFlushRenderBuffer(gc, gc->pc);' % (indent) print '%s (void) memcpy((void *)(pc + 0), (void *)(&cmdlenLarge), 4);' % (indent) print '%s (void) memcpy((void *)(pc + 4), (void *)(&op), 4);' % (indent) return def common_func_print_just_header(self, f): print '#define %s %d' % (f.opcode_name(), f.opcode_value()) print '%s' % (f.fn_return_type) print '__indirect_gl%s(%s)' % (f.name, f.get_parameter_string()) print '{' def common_func_print_just_start(self, f): print ' __GLXcontext * const gc = __glXGetCurrentContext();' # The only reason that single and vendor private commands need # a variable called 'dpy' is becuase they use the SyncHandle # macro. For whatever brain-dead reason, that macro is hard- # coded to use a variable called 'dpy' instead of taking a # parameter. if not f.glx_rop: if f.image and f.image.is_output: print ' const __GLXattribute * const state = gc->client_state_private;' print ' Display * const dpy = gc->currentDpy;' skip_condition = "dpy != NULL" elif f.can_be_large: skip_condition = "gc->currentDpy != NULL" else: skip_condition = None if f.fn_return_type != 'void': print ' %s retval = (%s) 0;' % (f.fn_return_type, f.fn_return_type) if not f.output_parameter(): compsize = self.size_call( f ) if compsize: print ' const GLuint compsize = %s;' % (compsize) print ' const GLuint cmdlen = %s;' % (f.command_length()) if f.counter: if skip_condition: skip_condition = "(%s >= 0) && (%s)" % (f.counter, skip_condition) else: skip_condition = "%s >= 0" % (f.counter) if skip_condition: print ' if (__builtin_expect(%s, 1)) {' % (skip_condition) return 1 else: return 0 def common_func_print_header(self, f): self.common_func_print_just_header(f) return self.common_func_print_just_start(f) def printSingleFunction(self, f): self.common_func_print_header(f) if self.debug: print ' printf( "Enter %%s...\\n", "gl%s" );' % (f.name) if f.glx_vendorpriv == 0: # XCB specific: print '#ifdef USE_XCB' if self.debug: print ' printf("\\tUsing XCB.\\n");' print ' XCBConnection *c = XCBConnectionOfDisplay(dpy);' print ' (void) __glXFlushRenderBuffer(gc, gc->pc);' xcb_name = 'XCBGlx%s' % f.name iparams=[] for p in f.fn_parameters: if p.is_output == 0: iparams.append(p.name) if f.image and f.image.is_output: if f.image.img_format != "GL_COLOR_INDEX" or f.image.img_type != "GL_BITMAP": iparams.append("state->storePack.swapEndian") else: iparams.append("0") # Hardcode this in. lsb_first param (apparently always GL_FALSE) # also present in GetPolygonStipple, but taken care of above. if xcb_name == "XCBGlxReadPixels": iparams.append("0") xcb_request = '%s(%s)' % (xcb_name, ", ".join(["c", "gc->currentContextTag"] + iparams)) if f.needs_reply(): print ' %sRep *reply = %sReply(c, %s, NULL);' % (xcb_name, xcb_name, xcb_request) if f.output and f.reply_always_array: print ' %s = (%s *)%sData(reply);' % (f.output.name, f.output.p_type.name, xcb_name) elif f.output and not f.reply_always_array: if not f.image and not f.name == "GenQueriesARB": print ' if (%sDataLength(reply) == 0)' % (xcb_name) print ' (void)memcpy(%s, &reply->datum, sizeof(reply->datum));' % (f.output.name) print ' else' print ' (void)memcpy(%s, %sData(reply), %sDataLength(reply) * sizeof(%s));' % (f.output.name, xcb_name, xcb_name, f.output.p_type.name) if f.fn_return_type != 'void': print ' retval = reply->ret_val;' print ' free(reply);' else: print ' ' + xcb_request + ';' print '#else' # End of XCB specific. if f.fn_parameters != []: pc_decl = "GLubyte const * pc =" else: pc_decl = "(void)" if f.glx_vendorpriv != 0: print ' %s __glXSetupVendorRequest(gc, %s, %s, cmdlen);' % (pc_decl, f.opcode_real_name(), f.opcode_name()) else: print ' %s __glXSetupSingleRequest(gc, %s, cmdlen);' % (pc_decl, f.opcode_name()) self.common_emit_args(f, "pc", " ", 0, 0) if f.image and f.image.is_output: o = f.command_fixed_length() - 4 print ' *(int32_t *)(pc + %u) = 0;' % (o) if f.image.img_format != "GL_COLOR_INDEX" or f.image.img_type != "GL_BITMAP": print ' * (int8_t *)(pc + %u) = state->storePack.swapEndian;' % (o) if f.img_reset: print ' * (int8_t *)(pc + %u) = %s;' % (o + 1, f.img_reset) if f.needs_reply(): if f.image and f.image.is_output: [dim, w, h, d, junk] = f.dimensions() if f.dimensions_in_reply: print " __glXReadPixelReply(dpy, gc, %u, 0, 0, 0, %s, %s, %s, GL_TRUE);" % (dim, f.image.img_format, f.image.img_type, f.image.name) else: print " __glXReadPixelReply(dpy, gc, %u, %s, %s, %s, %s, %s, %s, GL_FALSE);" % (dim, w, h, d, f.image.img_format, f.image.img_type, f.image.name) else: if f.output != None: if f.output.p_type.size == 0: output_size = 1 else: output_size = f.output.p_type.size output_str = f.output.name else: output_size = 0 output_str = "NULL" if f.fn_return_type != 'void': return_str = " retval = (%s)" % (f.fn_return_type) else: return_str = " (void)" if f.reply_always_array: aa = "GL_TRUE" else: aa = "GL_FALSE" print " %s __glXReadReply(dpy, %s, %s, %s);" % (return_str, output_size, output_str, aa) elif self.debug: # Only emit the extra glFinish call for functions # that don't already require a reply from the server. print ' __indirect_glFinish();' print ' UnlockDisplay(dpy); SyncHandle();' if f.glx_vendorpriv == 0: print '#endif /* USE_XCB */' if self.debug: print ' printf( "Exit %%s.\\n", "gl%s" );' % (f.name) print ' }' print ' %s' % f.return_string() print '}' print '' return def printPixelFunction(self, f): """This function could use some major refactoring. :(""" # There is a code-space optimization that we can do here. # Functions that are marked img_pad_dimensions have a version # with an odd number of dimensions and an even number of # dimensions. TexSubImage1D and TexSubImage2D are examples. # We can emit a single function that does both, and have the # real functions call the utility function with the correct # parameters. # # The only quirk to this is that utility funcitons will be # generated for 3D and 4D functions, but 4D (e.g., # GL_SGIS_texture4D) isn't typically supported. This is # probably not an issue. However, it would be possible to # look at the total set of functions and determine if there # is another function that would actually use the utility # function. If not, then fallback to the normal way of # generating code. if f.image.img_pad_dimensions: # Determine the hash key and the name for the utility # function that is used to implement the real # function. [h, n] = hash_pixel_function(f) # If the utility function is not yet known, generate # it. if not self.pixel_stubs.has_key(h): self.pixel_stubs[h] = n pixel_func = glXPixelFunctionUtility(f, n) print 'static void' print '%s( unsigned opcode, unsigned dim, %s )' % (n, pixel_func.get_parameter_string()) print '{' if self.common_func_print_just_start(pixel_func): indent = " " trailer = " }" else: indent = "" trailer = None if pixel_func.can_be_large: print '%s if (cmdlen <= gc->maxSmallRenderCommandSize) {' % (indent) print '%s if ( (gc->pc + cmdlen) > gc->bufEnd ) {' % (indent) print '%s (void) __glXFlushRenderBuffer(gc, gc->pc);' % (indent) print '%s }' % (indent) indent += " " [dim, width, height, depth, extent] = pixel_func.dimensions() adjust = pixel_func.offset_of_first_parameter() + 4 print '%s emit_header(gc->pc, opcode, cmdlen);' % (indent) offset = self.pixel_emit_args(pixel_func, "gc->pc", indent, adjust, dim, 0) s = pixel_func.command_fixed_length() pixHeaderPtr = "gc->pc + 4" pcPtr = "gc->pc + %u" % (s + 4) if pixel_func.image.img_send_null: condition = '(compsize > 0) && (%s != NULL)' % (pixel_func.image.name) else: condition = 'compsize > 0' print '%s if (%s) {' % (indent, condition) print '%s (*gc->fillImage)(gc, dim, %s, %s, %s, %s, %s, %s, %s, %s);' % (indent, width, height, depth, pixel_func.image.img_format, pixel_func.image.img_type, pixel_func.image.name, pcPtr, pixHeaderPtr) print '%s }' % (indent) print '%s else {' % (indent) print '%s (void) memcpy( %s, default_pixel_store_%uD, default_pixel_store_%uD_size );' % (indent, pixHeaderPtr, dim, dim) print '%s }' % (indent) print '%s gc->pc += cmdlen;' % (indent) print '%s if (gc->pc > gc->limit) { (void) __glXFlushRenderBuffer(gc, gc->pc); }' % (indent) if f.can_be_large: adjust += 4 print '%s}' % (indent) print '%selse {' % (indent) self.large_emit_begin(indent, pixel_func, "opcode") offset = self.pixel_emit_args(pixel_func, "pc", indent, adjust, dim, 1) pixHeaderPtr = "pc + 8" pcPtr = "pc + %u" % (s + 8) print '%s __glXSendLargeImage(gc, compsize, dim, %s, %s, %s, %s, %s, %s, %s, %s);' % (indent, width, height, depth, f.image.img_format, f.image.img_type, f.image.name, pcPtr, pixHeaderPtr) print '%s}' % (indent) if trailer: print trailer print '}' print '' # Generate the real function as a call to the # utility function. self.common_func_print_just_header(f) [dim, junk, junk, junk, junk] = f.dimensions() p_string = "" for p in gl_XML.glFunction.parameterIterator(f): p_string += ", " + p.name if f.pad_after(p): p_string += ", 1" print ' %s(%s, %u%s );' % (n, f.opcode_name(), dim, p_string) print '}' print '' return if self.common_func_print_header(f): indent = " " trailer = " }" else: indent = "" trailer = None if f.can_be_large: print '%s if (cmdlen <= gc->maxSmallRenderCommandSize) {' % (indent) print '%s if ( (gc->pc + cmdlen) > gc->bufEnd ) {' % (indent) print '%s (void) __glXFlushRenderBuffer(gc, gc->pc);' % (indent) print '%s }' % (indent) indent += " " [dim, width, height, depth, extent] = f.dimensions() adjust = f.offset_of_first_parameter() + 4 print '%s emit_header(gc->pc, %s, cmdlen);' % (indent, f.opcode_real_name()) offset = self.pixel_emit_args(f, "gc->pc", indent, adjust, dim, 0) s = f.command_fixed_length() pixHeaderPtr = "gc->pc + 4" pcPtr = "gc->pc + %u" % (s + 4) if f.image.img_send_null: condition = '(compsize > 0) && (%s != NULL)' % (f.image.name) else: condition = 'compsize > 0' print '%s if (%s) {' % (indent, condition) print '%s (*gc->fillImage)(gc, %u, %s, %s, %s, %s, %s, %s, %s, %s);' % (indent, dim, width, height, depth, f.image.img_format, f.image.img_type, f.image.name, pcPtr, pixHeaderPtr) print '%s }' % (indent) print '%s else {' % (indent) print '%s (void) memcpy( %s, default_pixel_store_%uD, default_pixel_store_%uD_size );' % (indent, pixHeaderPtr, dim, dim) print '%s }' % (indent) print '%s gc->pc += cmdlen;' % (indent) print '%s if (gc->pc > gc->limit) { (void) __glXFlushRenderBuffer(gc, gc->pc); }' % (indent) if f.can_be_large: adjust += 4 print '%s}' % (indent) print '%selse {' % (indent) self.large_emit_begin(indent, f) offset = self.pixel_emit_args(f, "pc", indent, adjust, dim, 1) pixHeaderPtr = "pc + 8" pcPtr = "pc + %u" % (s + 8) print '%s __glXSendLargeImage(gc, compsize, %u, %s, %s, %s, %s, %s, %s, %s, %s);' % (indent, dim, width, height, depth, f.image.img_format, f.image.img_type, f.image.name, pcPtr, pixHeaderPtr) print '%s}' % (indent) if trailer: print trailer print '}' print '' return def printRenderFunction(self, f): # There is a class of GL functions that take a single pointer # as a parameter. This pointer points to a fixed-size chunk # of data, and the protocol for this functions is very # regular. Since they are so regular and there are so many # of them, special case them with generic functions. On # x86, this saves about 26KB in the libGL.so binary. if f.variable_length_parameter() == None and len(f.fn_parameters) == 1: p = f.fn_parameters[0] if p.is_pointer: cmdlen = f.command_fixed_length() if cmdlen in self.generic_sizes: self.common_func_print_just_header(f) print ' generic_%u_byte( %s, %s );' % (cmdlen, f.opcode_real_name(), p.name) print '}' print '' return if self.common_func_print_header(f): indent = " " trailer = " }" else: indent = "" trailer = None if self.debug: print '%s printf( "Enter %%s...\\n", "gl%s" );' % (indent, f.name) if f.can_be_large: print '%s if (cmdlen <= gc->maxSmallRenderCommandSize) {' % (indent) print '%s if ( (gc->pc + cmdlen) > gc->bufEnd ) {' % (indent) print '%s (void) __glXFlushRenderBuffer(gc, gc->pc);' % (indent) print '%s }' % (indent) indent += " " print '%s emit_header(gc->pc, %s, cmdlen);' % (indent, f.opcode_real_name()) self.common_emit_args(f, "gc->pc", indent, 4, 0) print '%s gc->pc += cmdlen;' % (indent) print '%s if (__builtin_expect(gc->pc > gc->limit, 0)) { (void) __glXFlushRenderBuffer(gc, gc->pc); }' % (indent) if f.can_be_large: print '%s}' % (indent) print '%selse {' % (indent) self.large_emit_begin(indent, f) offset = self.common_emit_args(f, "pc", indent, 8, 1) p = f.variable_length_parameter() print '%s __glXSendLargeCommand(gc, pc, %u, %s, %s);' % (indent, offset + 8, p.name, p.size_string()) print '%s}' % (indent) if self.debug: print '%s __indirect_glFinish();' % (indent) print '%s printf( "Exit %%s.\\n", "gl%s" );' % (indent, f.name) if trailer: print trailer print '}' print '' return class PrintGlxProtoInit_c(glX_XML.GlxProto): def __init__(self): glX_XML.GlxProto.__init__(self) self.last_category = "" self.license = license.bsd_license_template % ( \ """Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. (C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM") def printRealHeader(self): print """/** * \\file indirect_init.c * Initialize indirect rendering dispatch table. * * \\author Kevin E. Martin * \\author Brian Paul * \\author Ian Romanick */ #include "indirect_init.h" #include "indirect.h" #include "glapi.h" /** * No-op function used to initialize functions that have no GLX protocol * support. */ static int NoOp(void) { return 0; } /** * Create and initialize a new GL dispatch table. The table is initialized * with GLX indirect rendering protocol functions. */ __GLapi * __glXNewIndirectAPI( void ) { __GLapi *glAPI; GLuint entries; entries = _glapi_get_dispatch_table_size(); glAPI = (__GLapi *) Xmalloc(entries * sizeof(void *)); /* first, set all entries to point to no-op functions */ { int i; void **dispatch = (void **) glAPI; for (i = 0; i < entries; i++) { dispatch[i] = (void *) NoOp; } } /* now, initialize the entries we understand */""" def printRealFooter(self): print """ return glAPI; } """ def printFunction(self, f): if f.category != self.last_category: self.last_category = f.category print '' print ' /* %s */' % (self.last_category) print '' print ' glAPI->%s = __indirect_gl%s;' % (f.name, f.name) class PrintGlxProtoInit_h(glX_XML.GlxProto): def __init__(self): glX_XML.GlxProto.__init__(self) self.last_category = "" self.license = license.bsd_license_template % ( \ """Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. (C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM") self.header_tag = "_INDIRECT_H_" def printRealHeader(self): print """/** * \\file * Prototypes for indirect rendering functions. * * \\author Kevin E. Martin * \\author Ian Romanick */ """ self.printVisibility( "HIDDEN", "hidden" ) self.printFastcall() self.printNoinline() print """ #include "glxclient.h" extern HIDDEN NOINLINE CARD32 __glXReadReply( Display *dpy, size_t size, void * dest, GLboolean reply_is_always_array ); extern HIDDEN NOINLINE void __glXReadPixelReply( Display *dpy, __GLXcontext * gc, unsigned max_dim, GLint width, GLint height, GLint depth, GLenum format, GLenum type, void * dest, GLboolean dimensions_in_reply ); extern HIDDEN NOINLINE FASTCALL GLubyte * __glXSetupSingleRequest( __GLXcontext * gc, GLint sop, GLint cmdlen ); extern HIDDEN NOINLINE FASTCALL GLubyte * __glXSetupVendorRequest( __GLXcontext * gc, GLint code, GLint vop, GLint cmdlen ); """ def printFunction(self, f): print 'extern HIDDEN %s __indirect_gl%s(%s);' % (f.fn_return_type, f.name, f.get_parameter_string()) def show_usage(): print "Usage: %s [-f input_file_name] [-m output_mode] [-d]" % sys.argv[0] print " -m output_mode Output mode can be one of 'proto', 'init_c' or 'init_h'." print " -d Enable extra debug information in the generated code." sys.exit(1) if __name__ == '__main__': file_name = "gl_API.xml" try: (args, trail) = getopt.getopt(sys.argv[1:], "f:m:d") except Exception,e: show_usage() debug = 0 mode = "proto" for (arg,val) in args: if arg == "-f": file_name = val elif arg == "-m": mode = val elif arg == "-d": debug = 1 if mode == "proto": dh = PrintGlxProtoStubs() elif mode == "init_c": dh = PrintGlxProtoInit_c() elif mode == "init_h": dh = PrintGlxProtoInit_h() else: show_usage() dh.debug = debug gl_XML.parse_GL_API( dh, file_name )