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authorJosé Fonseca <jfonseca@vmware.com>2010-03-31 20:15:17 +0100
committerJosé Fonseca <jfonseca@vmware.com>2010-03-31 20:15:17 +0100
commit69895725cfe9d4dc917ff6e643af9e6e3a6e093f (patch)
tree2c7f8cfad70a7d6063650e9dfe8f3e2b98359588 /src/gallium/auxiliary/util
parent3200e708582f75b3566a85228de9a698edbfb022 (diff)
util: Add callback to fetch a single pixel.
Diffstat (limited to 'src/gallium/auxiliary/util')
-rw-r--r--src/gallium/auxiliary/util/u_format.h17
-rw-r--r--src/gallium/auxiliary/util/u_format_pack.py360
-rwxr-xr-xsrc/gallium/auxiliary/util/u_format_table.py11
3 files changed, 214 insertions, 174 deletions
diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h
index 609d398ebf..8e76e13b66 100644
--- a/src/gallium/auxiliary/util/u_format.h
+++ b/src/gallium/auxiliary/util/u_format.h
@@ -191,21 +191,34 @@ struct util_format_description
enum util_format_colorspace colorspace;
/**
- * Accessor functions.
+ * Unpack a span of pixel blocks to R8G8B8A8_UNORM.
*/
-
void
(*unpack_8unorm)(uint8_t *dst, const uint8_t *src, unsigned nr_blocks);
+ /**
+ * Pack a span of pixel blocks from R8G8B8A8_UNORM.
+ */
void
(*pack_8unorm)(uint8_t *dst, const uint8_t *src, unsigned nr_blocks);
+ /**
+ * Unpack a span of pixel blocks to R32G32B32A32_FLOAT.
+ */
void
(*unpack_float)(float *dst, const uint8_t *src, unsigned nr_blocks);
+ /**
+ * Pack a span of pixel blocks from R32G32B32A32_FLOAT.
+ */
void
(*pack_float)(uint8_t *dst, const float *src, unsigned nr_blocks);
+ /**
+ * Fetch a single pixel (i, j) from a block.
+ */
+ void
+ (*fetch_float)(float *dst, const uint8_t *src, unsigned i, unsigned j);
};
diff --git a/src/gallium/auxiliary/util/u_format_pack.py b/src/gallium/auxiliary/util/u_format_pack.py
index 4831912f02..c74900ce63 100644
--- a/src/gallium/auxiliary/util/u_format_pack.py
+++ b/src/gallium/auxiliary/util/u_format_pack.py
@@ -324,115 +324,190 @@ def conversion_expr(src_channel, dst_channel, dst_native_type, value, clamp=True
assert False
-def generate_format_unpack(format, dst_channel, dst_native_type, dst_suffix):
- '''Generate the function to unpack pixels from a particular format'''
-
- name = format.short_name()
-
- print 'static INLINE void'
- print 'util_format_%s_unpack_%s(%s *dst, const uint8_t *src, unsigned length)' % (name, dst_suffix, dst_native_type)
- print '{'
+def generate_unpack_kernel(format, dst_channel, dst_native_type):
- if is_format_supported(format):
-
- assert format.layout == PLAIN
-
- src_native_type = native_type(format)
-
- print ' while(length--) {'
-
- if format.is_bitmask():
- depth = format.block_size()
- print ' uint%u_t value = *(uint%u_t *)src;' % (depth, depth)
+ if not is_format_supported(format):
+ return
- # Declare the intermediate variables
- for i in range(format.nr_channels()):
- src_channel = format.channels[i]
- if src_channel.type == UNSIGNED:
- print ' uint%u_t %s;' % (depth, src_channel.name)
- elif src_channel.type == SIGNED:
- print ' int%u_t %s;' % (depth, src_channel.name)
+ assert format.layout == PLAIN
+
+ src_native_type = native_type(format)
+
+ if format.is_bitmask():
+ depth = format.block_size()
+ print ' uint%u_t value = *(uint%u_t *)src;' % (depth, depth)
+
+ # Declare the intermediate variables
+ for i in range(format.nr_channels()):
+ src_channel = format.channels[i]
+ if src_channel.type == UNSIGNED:
+ print ' uint%u_t %s;' % (depth, src_channel.name)
+ elif src_channel.type == SIGNED:
+ print ' int%u_t %s;' % (depth, src_channel.name)
+
+ print ' #ifdef PIPE_ARCH_BIG_ENDIAN'
+ print ' value = util_bswap%u(value);' % depth
+ print ' #endif'
+
+ # Compute the intermediate unshifted values
+ shift = 0
+ for i in range(format.nr_channels()):
+ src_channel = format.channels[i]
+ value = 'value'
+ if src_channel.type == UNSIGNED:
+ if shift:
+ value = '%s >> %u' % (value, shift)
+ if shift + src_channel.size < depth:
+ value = '(%s) & 0x%x' % (value, (1 << src_channel.size) - 1)
+ elif src_channel.type == SIGNED:
+ if shift + src_channel.size < depth:
+ # Align the sign bit
+ lshift = depth - (shift + src_channel.size)
+ value = '%s << %u' % (value, lshift)
+ # Cast to signed
+ value = '(int%u_t)(%s) ' % (depth, value)
+ if src_channel.size < depth:
+ # Align the LSB bit
+ rshift = depth - src_channel.size
+ value = '(%s) >> %u' % (value, rshift)
+ else:
+ value = None
+
+ if value is not None:
+ print ' %s = %s;' % (src_channel.name, value)
+
+ shift += src_channel.size
+
+ # Convert, swizzle, and store final values
+ for i in range(4):
+ swizzle = format.swizzles[i]
+ if swizzle < 4:
+ src_channel = format.channels[swizzle]
+ value = src_channel.name
+ value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
+ elif swizzle == SWIZZLE_0:
+ value = '0'
+ elif swizzle == SWIZZLE_1:
+ value = get_one(dst_channel)
+ elif swizzle == SWIZZLE_NONE:
+ value = '0'
+ else:
+ assert False
+ if format.colorspace == ZS:
+ if i == 3:
+ value = get_one(dst_channel)
+ elif i >= 1:
+ value = 'dst[0]'
+ print ' dst[%u] = %s; /* %s */' % (i, value, 'rgba'[i])
+
+ else:
+ print ' union util_format_%s pixel;' % format.short_name()
+ print ' memcpy(&pixel, src, sizeof pixel);'
+ bswap_format(format)
- print ' #ifdef PIPE_ARCH_BIG_ENDIAN'
- print ' value = util_bswap%u(value);' % depth
- print ' #endif'
+ for i in range(4):
+ swizzle = format.swizzles[i]
+ if swizzle < 4:
+ src_channel = format.channels[swizzle]
+ value = 'pixel.chan.%s' % src_channel.name
+ value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
+ elif swizzle == SWIZZLE_0:
+ value = '0'
+ elif swizzle == SWIZZLE_1:
+ value = get_one(dst_channel)
+ elif swizzle == SWIZZLE_NONE:
+ value = '0'
+ else:
+ assert False
+ if format.colorspace == ZS:
+ if i == 3:
+ value = get_one(dst_channel)
+ elif i >= 1:
+ value = 'dst[0]'
+ print ' dst[%u] = %s; /* %s */' % (i, value, 'rgba'[i])
- # Compute the intermediate unshifted values
- shift = 0
- for i in range(format.nr_channels()):
- src_channel = format.channels[i]
- value = 'value'
- if src_channel.type == UNSIGNED:
- if shift:
- value = '%s >> %u' % (value, shift)
- if shift + src_channel.size < depth:
- value = '(%s) & 0x%x' % (value, (1 << src_channel.size) - 1)
- elif src_channel.type == SIGNED:
- if shift + src_channel.size < depth:
- # Align the sign bit
- lshift = depth - (shift + src_channel.size)
- value = '%s << %u' % (value, lshift)
- # Cast to signed
- value = '(int%u_t)(%s) ' % (depth, value)
- if src_channel.size < depth:
- # Align the LSB bit
- rshift = depth - src_channel.size
- value = '(%s) >> %u' % (value, rshift)
- else:
- value = None
-
- if value is not None:
- print ' %s = %s;' % (src_channel.name, value)
-
- shift += src_channel.size
+
+def generate_pack_kernel(format, src_channel, src_native_type):
+
+ if not is_format_supported(format):
+ return
- # Convert, swizzle, and store final values
- for i in range(4):
- swizzle = format.swizzles[i]
- if swizzle < 4:
- src_channel = format.channels[swizzle]
- value = src_channel.name
- value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
- elif swizzle == SWIZZLE_0:
- value = '0'
- elif swizzle == SWIZZLE_1:
- value = get_one(dst_channel)
- elif swizzle == SWIZZLE_NONE:
- value = '0'
- else:
- assert False
+ dst_native_type = native_type(format)
+
+ assert format.layout == PLAIN
+
+ inv_swizzle = format.inv_swizzles()
+
+ if format.is_bitmask():
+ depth = format.block_size()
+ print ' uint%u_t value = 0;' % depth
+
+ shift = 0
+ for i in range(4):
+ dst_channel = format.channels[i]
+ if inv_swizzle[i] is not None:
+ value ='src[%u]' % inv_swizzle[i]
+ value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
if format.colorspace == ZS:
if i == 3:
value = get_one(dst_channel)
elif i >= 1:
- value = 'dst[0]'
- print ' dst[%u] = %s; /* %s */' % (i, value, 'rgba'[i])
-
- else:
- print ' union util_format_%s pixel;' % format.short_name()
- print ' memcpy(&pixel, src, sizeof pixel);'
- bswap_format(format)
+ value = '0'
+ if dst_channel.type in (UNSIGNED, SIGNED):
+ if shift + dst_channel.size < depth:
+ value = '(%s) & 0x%x' % (value, (1 << dst_channel.size) - 1)
+ if shift:
+ value = '(%s) << %u' % (value, shift)
+ if dst_channel.type == SIGNED:
+ # Cast to unsigned
+ value = '(uint%u_t)(%s) ' % (depth, value)
+ else:
+ value = None
+ if value is not None:
+ print ' value |= %s;' % (value)
+
+ shift += dst_channel.size
+
+ print '#ifdef PIPE_ARCH_BIG_ENDIAN'
+ print ' value = util_bswap%u(value);' % depth
+ print '#endif'
- for i in range(4):
- swizzle = format.swizzles[i]
- if swizzle < 4:
- src_channel = format.channels[swizzle]
- value = 'pixel.chan.%s' % src_channel.name
- value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
- elif swizzle == SWIZZLE_0:
- value = '0'
- elif swizzle == SWIZZLE_1:
+ print ' *(uint%u_t *)dst = value;' % depth
+
+ else:
+ print ' union util_format_%s pixel;' % format.short_name()
+
+ for i in range(4):
+ dst_channel = format.channels[i]
+ width = dst_channel.size
+ if inv_swizzle[i] is None:
+ continue
+ value ='src[%u]' % inv_swizzle[i]
+ value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
+ if format.colorspace == ZS:
+ if i == 3:
value = get_one(dst_channel)
- elif swizzle == SWIZZLE_NONE:
+ elif i >= 1:
value = '0'
- else:
- assert False
- if format.colorspace == ZS:
- if i == 3:
- value = get_one(dst_channel)
- elif i >= 1:
- value = 'dst[0]'
- print ' dst[%u] = %s; /* %s */' % (i, value, 'rgba'[i])
+ print ' pixel.chan.%s = %s;' % (dst_channel.name, value)
+
+ bswap_format(format)
+ print ' memcpy(dst, &pixel, sizeof pixel);'
+
+
+def generate_format_unpack(format, dst_channel, dst_native_type, dst_suffix):
+ '''Generate the function to unpack pixels from a particular format'''
+
+ name = format.short_name()
+
+ print 'static INLINE void'
+ print 'util_format_%s_unpack_%s(%s *dst, const uint8_t *src, unsigned length)' % (name, dst_suffix, dst_native_type)
+ print '{'
+
+ if is_format_supported(format):
+ print ' while(length--) {'
+
+ generate_unpack_kernel(format, dst_channel, dst_native_type)
print ' src += %u;' % (format.block_size() / 8,)
print ' dst += 4;'
@@ -452,69 +527,9 @@ def generate_format_pack(format, src_channel, src_native_type, src_suffix):
print '{'
if is_format_supported(format):
- dst_native_type = native_type(format)
-
- assert format.layout == PLAIN
-
- inv_swizzle = format.inv_swizzles()
-
print ' while(length--) {'
- if format.is_bitmask():
- depth = format.block_size()
- print ' uint%u_t value = 0;' % depth
-
- shift = 0
- for i in range(4):
- dst_channel = format.channels[i]
- if inv_swizzle[i] is not None:
- value ='src[%u]' % inv_swizzle[i]
- value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
- if format.colorspace == ZS:
- if i == 3:
- value = get_one(dst_channel)
- elif i >= 1:
- value = '0'
- if dst_channel.type in (UNSIGNED, SIGNED):
- if shift + dst_channel.size < depth:
- value = '(%s) & 0x%x' % (value, (1 << dst_channel.size) - 1)
- if shift:
- value = '(%s) << %u' % (value, shift)
- if dst_channel.type == SIGNED:
- # Cast to unsigned
- value = '(uint%u_t)(%s) ' % (depth, value)
- else:
- value = None
- if value is not None:
- print ' value |= %s;' % (value)
-
- shift += dst_channel.size
-
- print '#ifdef PIPE_ARCH_BIG_ENDIAN'
- print ' value = util_bswap%u(value);' % depth
- print '#endif'
-
- print ' *(uint%u_t *)dst = value;' % depth
-
- else:
- print ' union util_format_%s pixel;' % format.short_name()
-
- for i in range(4):
- dst_channel = format.channels[i]
- width = dst_channel.size
- if inv_swizzle[i] is None:
- continue
- value ='src[%u]' % inv_swizzle[i]
- value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
- if format.colorspace == ZS:
- if i == 3:
- value = get_one(dst_channel)
- elif i >= 1:
- value = '0'
- print ' pixel.chan.%s = %s;' % (dst_channel.name, value)
-
- bswap_format(format)
- print ' memcpy(dst, &pixel, sizeof pixel);'
+ generate_pack_kernel(format, src_channel, src_native_type)
print ' src += 4;'
print ' dst += %u;' % (format.block_size() / 8,)
@@ -524,18 +539,20 @@ def generate_format_pack(format, src_channel, src_native_type, src_suffix):
print
-def generate_unpack(formats, dst_channel, dst_native_type, dst_suffix):
- '''Generate the dispatch function to unpack pixels from any format'''
+def generate_format_fetch(format, dst_channel, dst_native_type, dst_suffix):
+ '''Generate the function to unpack pixels from a particular format'''
- for format in formats:
- generate_format_unpack(format, dst_channel, dst_native_type, dst_suffix)
+ name = format.short_name()
+ print 'static INLINE void'
+ print 'util_format_%s_fetch_%s(%s *dst, const uint8_t *src, unsigned i, unsigned j)' % (name, dst_suffix, dst_native_type)
+ print '{'
-def generate_pack(formats, src_channel, src_native_type, src_suffix):
- '''Generate the dispatch function to pack pixels to any format'''
+ if is_format_supported(format):
+ generate_unpack_kernel(format, dst_channel, dst_native_type)
- for format in formats:
- generate_format_pack(format, src_channel, src_native_type, src_suffix)
+ print '}'
+ print
def generate(formats):
@@ -555,13 +572,16 @@ def generate(formats):
native_type = 'float'
suffix = 'float'
- generate_unpack(formats, channel, native_type, suffix)
- generate_pack(formats, channel, native_type, suffix)
+ for format in formats:
+ generate_format_unpack(format, channel, native_type, suffix)
+ generate_format_pack(format, channel, native_type, suffix)
+ generate_format_fetch(format, channel, native_type, suffix)
channel = Channel(UNSIGNED, True, 8)
native_type = 'uint8_t'
suffix = '8unorm'
- generate_unpack(formats, channel, native_type, suffix)
- generate_pack(formats, channel, native_type, suffix)
+ for format in formats:
+ generate_format_unpack(format, channel, native_type, suffix)
+ generate_format_pack(format, channel, native_type, suffix)
diff --git a/src/gallium/auxiliary/util/u_format_table.py b/src/gallium/auxiliary/util/u_format_table.py
index fe910d9a77..6877bd6844 100755
--- a/src/gallium/auxiliary/util/u_format_table.py
+++ b/src/gallium/auxiliary/util/u_format_table.py
@@ -107,6 +107,11 @@ static void
util_format_none_pack_float(uint8_t *dst, const float *src, unsigned length)
{
}
+
+static void
+util_format_none_fetch_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
+{
+}
'''
print 'const struct util_format_description'
print 'util_format_none_description = {'
@@ -125,7 +130,8 @@ util_format_none_pack_float(uint8_t *dst, const float *src, unsigned length)
print " &util_format_none_unpack_8unorm,"
print " &util_format_none_pack_8unorm,"
print " &util_format_none_unpack_float,"
- print " &util_format_none_pack_float"
+ print " &util_format_none_pack_float,"
+ print " &util_format_none_fetch_float"
print "};"
print
@@ -172,7 +178,8 @@ util_format_none_pack_float(uint8_t *dst, const float *src, unsigned length)
print " &util_format_%s_unpack_8unorm," % format.short_name()
print " &util_format_%s_pack_8unorm," % format.short_name()
print " &util_format_%s_unpack_float," % format.short_name()
- print " &util_format_%s_pack_float" % format.short_name()
+ print " &util_format_%s_pack_float," % format.short_name()
+ print " &util_format_%s_fetch_float" % format.short_name()
print "};"
print