util: Use u_format_pack.py's code instead of u_format_access.py.

6 files changed, 163 insertions, 355 deletions

diff --git a/src/gallium/auxiliary/Makefile b/src/gallium/auxiliary/Makefile
index 903c5a331ce..4df3fbd1327 100644
--- a/src/gallium/auxiliary/Makefile
+++ b/src/gallium/auxiliary/Makefile
@@ -105,7 +105,7 @@ C_SOURCES = \
 	util/u_cpu_detect.c \
 	util/u_dl.c \
 	util/u_draw_quad.c \
-	util/u_format_access.c \
+	util/u_format.c \
 	util/u_format_table.c \
 	util/u_format_tests.c \
 	util/u_gen_mipmap.c \
@@ -167,7 +167,6 @@ GALLIVM_CPP_SOURCES = \
 GENERATED_SOURCES = \
 	indices/u_indices_gen.c \
 	indices/u_unfilled_gen.c \
-	util/u_format_access.c \
 	util/u_format_table.c
 
 
diff --git a/src/gallium/auxiliary/SConscript b/src/gallium/auxiliary/SConscript
index 772ab415235..db2c13ce5bd 100644
--- a/src/gallium/auxiliary/SConscript
+++ b/src/gallium/auxiliary/SConscript
@@ -30,13 +30,6 @@ env.CodeGenerate(
     command = 'python $SCRIPT $SOURCE > $TARGET'
 )
 
-env.CodeGenerate(
-    target = 'util/u_format_access.c',
-    script = 'util/u_format_access.py',
-    source = ['util/u_format.csv'],
-    command = 'python $SCRIPT $SOURCE > $TARGET'
-)
-
 source = [
     'cso_cache/cso_context.c',
     'cso_cache/cso_cache.c',
@@ -142,7 +135,7 @@ source = [
     'util/u_dump_state.c',
     'util/u_dl.c',
     'util/u_draw_quad.c',
-    'util/u_format_access.c',
+    'util/u_format.c',
     'util/u_format_table.c',
     'util/u_format_tests.c',
     'util/u_gen_mipmap.c',
diff --git a/src/gallium/auxiliary/util/.gitignore b/src/gallium/auxiliary/util/.gitignore
index 29c586c9b51..53fe9b8a652 100644
--- a/src/gallium/auxiliary/util/.gitignore
+++ b/src/gallium/auxiliary/util/.gitignore
@@ -1,2 +1 @@
-u_format_access.c
 u_format_table.c
diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c
new file mode 100644
index 00000000000..11ef839ec19
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_format.c
@@ -0,0 +1,146 @@
+/**************************************************************************
+ *
+ * Copyright 2010 VMware, Inc.
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * Pixel format accessor functions.
+ *
+ * @author Jose Fonseca <[email protected]>
+ */
+
+#include "u_format.h"
+
+
+void
+util_format_read_4f(enum pipe_format format,
+                    float *dst, unsigned dst_stride,
+                    const void *src, unsigned src_stride,
+                    unsigned x, unsigned y, unsigned w, unsigned h)
+{
+   const struct util_format_description *format_desc;
+   const uint8_t *src_row;
+   float *dst_row;
+   unsigned row_blocks;
+   unsigned i;
+
+   format_desc = util_format_description(format);
+
+   assert(x % format_desc->block.width == 0);
+   assert(y % format_desc->block.height == 0);
+
+   src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8);
+   dst_row = dst;
+   row_blocks = (w + format_desc->block.width - 1) / format_desc->block.width;
+
+   for (i = 0; i < h; i += format_desc->block.height) {
+      format_desc->unpack_float(dst_row, src_row, row_blocks);
+      src_row += src_stride;
+      dst_row += dst_stride/sizeof(*dst_row);
+   }
+}
+
+
+void
+util_format_write_4f(enum pipe_format format,
+                     const float *src, unsigned src_stride,
+                     void *dst, unsigned dst_stride,
+                     unsigned x, unsigned y, unsigned w, unsigned h)
+{
+   const struct util_format_description *format_desc;
+   uint8_t *dst_row;
+   const float *src_row;
+   unsigned row_blocks;
+   unsigned i;
+
+   format_desc = util_format_description(format);
+
+   assert(x % format_desc->block.width == 0);
+   assert(y % format_desc->block.height == 0);
+
+   dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8);
+   src_row = src;
+   row_blocks = (w + format_desc->block.width - 1) / format_desc->block.width;
+
+   for (i = 0; i < h; i += format_desc->block.height) {
+      format_desc->pack_float(dst_row, src_row, row_blocks);
+      dst_row += dst_stride;
+      src_row += src_stride/sizeof(*src_row);
+   }
+}
+
+
+void
+util_format_read_4ub(enum pipe_format format, uint8_t *dst, unsigned dst_stride, const void *src, unsigned src_stride, unsigned x, unsigned y, unsigned w, unsigned h)
+{
+   const struct util_format_description *format_desc;
+   const uint8_t *src_row;
+   uint8_t *dst_row;
+   unsigned row_blocks;
+   unsigned i;
+
+   format_desc = util_format_description(format);
+
+   assert(x % format_desc->block.width == 0);
+   assert(y % format_desc->block.height == 0);
+
+   src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8);
+   dst_row = dst;
+   row_blocks = (w + format_desc->block.width - 1) / format_desc->block.width;
+
+   for (i = 0; i < h; i += format_desc->block.height) {
+      format_desc->unpack_8unorm(dst_row, src_row, row_blocks);
+      src_row += src_stride;
+      dst_row += dst_stride/sizeof(*dst_row);
+   }
+}
+
+
+void
+util_format_write_4ub(enum pipe_format format, const uint8_t *src, unsigned src_stride, void *dst, unsigned dst_stride, unsigned x, unsigned y, unsigned w, unsigned h)
+{
+   const struct util_format_description *format_desc;
+   uint8_t *dst_row;
+   const uint8_t *src_row;
+   unsigned row_blocks;
+   unsigned i;
+
+   format_desc = util_format_description(format);
+
+   assert(x % format_desc->block.width == 0);
+   assert(y % format_desc->block.height == 0);
+
+   dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8);
+   src_row = src;
+   row_blocks = (w + format_desc->block.width - 1) / format_desc->block.width;
+
+   for (i = 0; i < h; i += format_desc->block.height) {
+      format_desc->pack_8unorm(dst_row, src_row, row_blocks);
+      dst_row += dst_stride;
+      src_row += src_stride/sizeof(*src_row);
+   }
+}
+
diff --git a/src/gallium/auxiliary/util/u_format_access.py b/src/gallium/auxiliary/util/u_format_access.py
deleted file mode 100644
index 1c76d9a79da..00000000000
--- a/src/gallium/auxiliary/util/u_format_access.py
+++ /dev/null
@@ -1,344 +0,0 @@
-#!/usr/bin/env python
-
-'''
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * 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 VMWARE 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.
- *
- **************************************************************************/
-
-/**
- * @file
- * Pixel format accessor functions.
- *
- * @author Jose Fonseca <[email protected]>
- */
-'''
-
-
-import math
-import sys
-
-from u_format_pack import *
-
-
-def is_format_supported(format):
-    '''Determines whether we actually have the plumbing necessary to generate the 
-    to read/write to/from this format.'''
-
-    # FIXME: Ideally we would support any format combination here.
-
-    # XXX: It should be straightforward to support srgb
-    if format.colorspace not in ('rgb', 'zs'):
-        return False
-
-    if format.layout != PLAIN:
-        return False
-
-    for i in range(4):
-        channel = format.channels[i]
-        if channel.type not in (VOID, UNSIGNED, FLOAT):
-            return False
-        if channel.type == FLOAT:
-            if channel.size not in (32, 64) or format.is_mixed():
-               return False
-
-    # We can only read a color from a depth/stencil format if the depth channel is present
-    if format.colorspace == 'zs' and format.swizzles[0] == SWIZZLE_NONE:
-        return False
-
-    return True
-
-
-def native_type(format):
-    '''Get the native appropriate for a format.'''
-
-    if format.layout == PLAIN:
-        if not format.is_array():
-            # For arithmetic pixel formats return the integer type that matches the whole pixel
-            return 'uint%u_t' % format.block_size()
-        else:
-            # For array pixel formats return the integer type that matches the color channel
-            channel = format.channels[0]
-            if channel.type in (UNSIGNED, VOID):
-                return 'uint%u_t' % channel.size
-            elif channel.type == SIGNED:
-                return 'int%u_t' % channel.size
-            elif channel.type == FLOAT:
-                if channel.size == 32:
-                    return 'float'
-                elif channel.size == 64:
-                    return 'double'
-                else:
-                    assert False
-            else:
-                assert False
-    else:
-        assert False
-
-
-def generate_srgb_tables():
-    print 'static ubyte srgb_to_linear[256] = {'
-    for i in range(256):
-        print '   %s,' % (int(math.pow((i / 255.0 + 0.055) / 1.055, 2.4) * 255))
-    print '};'
-    print
-    print 'static ubyte linear_to_srgb[256] = {'
-    print '   0,'
-    for i in range(1, 256):
-        print '   %s,' % (int((1.055 * math.pow(i / 255.0, 0.41666) - 0.055) * 255))
-    print '};'
-    print
-
-
-def generate_format_read(format, dst_channel, dst_native_type, dst_suffix):
-    '''Generate the function to read pixels from a particular format'''
-
-    name = format.short_name()
-
-    src_native_type = native_type(format)
-
-    print 'static void'
-    print 'util_format_%s_read_%s(%s *dst, unsigned dst_stride, const uint8_t *src, unsigned src_stride, unsigned x0, unsigned y0, unsigned w, unsigned h)' % (name, dst_suffix, dst_native_type)
-    print '{'
-    print '   unsigned x, y;'
-    print '   const uint8_t *src_row = src + y0*src_stride;'
-    print '   %s *dst_row = dst;' % dst_native_type
-    print '   for (y = 0; y < h; ++y) {'
-    print '      const %s *src_pixel = (const %s *)(src_row + x0*%u);' % (src_native_type, src_native_type, format.stride())
-    print '      %s *dst_pixel = dst_row;' %dst_native_type
-    print '      for (x = 0; x < w; ++x) {'
-
-    names = ['']*4
-    if format.colorspace == 'rgb':
-        for i in range(4):
-            swizzle = format.swizzles[i]
-            if swizzle < 4:
-                names[swizzle] += 'rgba'[i]
-    elif format.colorspace == 'zs':
-        swizzle = format.swizzles[0]
-        if swizzle < 4:
-            names[swizzle] = 'z'
-        else:
-            assert False
-    else:
-        assert False
-
-    if format.layout == PLAIN:
-        if not format.is_array():
-            print '         %s pixel = *src_pixel++;' % src_native_type
-            shift = 0;
-            for i in range(4):
-                src_channel = format.channels[i]
-                width = src_channel.size
-                if names[i]:
-                    value = 'pixel'
-                    mask = (1 << width) - 1
-                    if shift:
-                        value = '(%s >> %u)' % (value, shift)
-                    if shift + width < format.block_size():
-                        value = '(%s & 0x%x)' % (value, mask)
-                    value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
-                    print '         %s %s = %s;' % (dst_native_type, names[i], value)
-                shift += width
-        else:
-            for i in range(4):
-                src_channel = format.channels[i]
-                if names[i]:
-                    value = 'src_pixel[%u]' % i
-                    value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
-                    print '         %s %s = %s;' % (dst_native_type, names[i], value)
-            print '         src_pixel += %u;' % (format.nr_channels())
-    else:
-        assert False
-
-    for i in range(4):
-        if format.colorspace == 'rgb':
-            swizzle = format.swizzles[i]
-            if swizzle < 4:
-                value = names[swizzle]
-            elif swizzle == SWIZZLE_0:
-                value = '0'
-            elif swizzle == SWIZZLE_1:
-                value = get_one(dst_channel)
-            else:
-                assert False
-        elif format.colorspace == 'zs':
-            if i < 3:
-                value = 'z'
-            else:
-                value = get_one(dst_channel)
-        else:
-            assert False
-        print '         *dst_pixel++ = %s; /* %s */' % (value, 'rgba'[i])
-
-    print '      }'
-    print '      src_row += src_stride;'
-    print '      dst_row += dst_stride/sizeof(*dst_row);'
-    print '   }'
-    print '}'
-    print
-    
-
-def generate_format_write(format, src_channel, src_native_type, src_suffix):
-    '''Generate the function to write pixels to a particular format'''
-
-    name = format.short_name()
-
-    dst_native_type = native_type(format)
-
-    print 'static void'
-    print 'util_format_%s_write_%s(const %s *src, unsigned src_stride, uint8_t *dst, unsigned dst_stride, unsigned x0, unsigned y0, unsigned w, unsigned h)' % (name, src_suffix, src_native_type)
-    print '{'
-    print '   unsigned x, y;'
-    print '   uint8_t *dst_row = dst + y0*dst_stride;'
-    print '   const %s *src_row = src;' % src_native_type
-    print '   for (y = 0; y < h; ++y) {'
-    print '      %s *dst_pixel = (%s *)(dst_row + x0*%u);' % (dst_native_type, dst_native_type, format.stride())
-    print '      const %s *src_pixel = src_row;' %src_native_type
-    print '      for (x = 0; x < w; ++x) {'
-
-    inv_swizzle = format.inv_swizzles()
-
-    if format.layout == PLAIN:
-        if not format.is_array():
-            print '         %s pixel = 0;' % dst_native_type
-            shift = 0;
-            for i in range(4):
-                dst_channel = format.channels[i]
-                width = dst_channel.size
-                if inv_swizzle[i] is not None:
-                    value = 'src_pixel[%u]' % inv_swizzle[i]
-                    value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
-                    if shift:
-                        value = '(%s << %u)' % (value, shift)
-                    print '         pixel |= %s;' % value
-                shift += width
-            print '         *dst_pixel++ = pixel;'
-        else:
-            for i in range(4):
-                dst_channel = format.channels[i]
-                if inv_swizzle[i] is not None:
-                    value = 'src_pixel[%u]' % inv_swizzle[i]
-                    value = conversion_expr(src_channel, dst_channel, dst_native_type, value)
-                    print '         *dst_pixel++ = %s;' % value
-    else:
-        assert False
-    print '         src_pixel += 4;'
-
-    print '      }'
-    print '      dst_row += dst_stride;'
-    print '      src_row += src_stride/sizeof(*src_row);'
-    print '   }'
-    print '}'
-    print
-    
-
-def generate_read(formats, dst_channel, dst_native_type, dst_suffix):
-    '''Generate the dispatch function to read pixels from any format'''
-
-    for format in formats:
-        if is_format_supported(format):
-            generate_format_read(format, dst_channel, dst_native_type, dst_suffix)
-
-    print 'void'
-    print 'util_format_read_%s(enum pipe_format format, %s *dst, unsigned dst_stride, const void *src, unsigned src_stride, unsigned x, unsigned y, unsigned w, unsigned h)' % (dst_suffix, dst_native_type)
-    print '{'
-    print '   void (*func)(%s *dst, unsigned dst_stride, const uint8_t *src, unsigned src_stride, unsigned x0, unsigned y0, unsigned w, unsigned h);' % dst_native_type
-    print '   switch(format) {'
-    for format in formats:
-        if is_format_supported(format):
-            print '   case %s:' % format.name
-            print '      func = &util_format_%s_read_%s;' % (format.short_name(), dst_suffix)
-            print '      break;'
-    print '   default:'
-    print '      debug_printf("unsupported format\\n");'
-    print '      return;'
-    print '   }'
-    print '   func(dst, dst_stride, (const uint8_t *)src, src_stride, x, y, w, h);'
-    print '}'
-    print
-
-
-def generate_write(formats, src_channel, src_native_type, src_suffix):
-    '''Generate the dispatch function to write pixels to any format'''
-
-    for format in formats:
-        if is_format_supported(format):
-            generate_format_write(format, src_channel, src_native_type, src_suffix)
-
-    print 'void'
-    print 'util_format_write_%s(enum pipe_format format, const %s *src, unsigned src_stride, void *dst, unsigned dst_stride, unsigned x, unsigned y, unsigned w, unsigned h)' % (src_suffix, src_native_type)
-    
-    print '{'
-    print '   void (*func)(const %s *src, unsigned src_stride, uint8_t *dst, unsigned dst_stride, unsigned x0, unsigned y0, unsigned w, unsigned h);' % src_native_type
-    print '   switch(format) {'
-    for format in formats:
-        if is_format_supported(format):
-            print '   case %s:' % format.name
-            print '      func = &util_format_%s_write_%s;' % (format.short_name(), src_suffix)
-            print '      break;'
-    print '   default:'
-    print '      debug_printf("unsupported format\\n");'
-    print '      return;'
-    print '   }'
-    print '   func(src, src_stride, (uint8_t *)dst, dst_stride, x, y, w, h);'
-    print '}'
-    print
-
-
-def main():
-    formats = []
-    for arg in sys.argv[1:]:
-        formats.extend(parse(arg))
-
-    print '/* This file is autogenerated by u_format_access.py from u_format.csv. Do not edit directly. */'
-    print
-    # This will print the copyright message on the top of this file
-    print __doc__.strip()
-    print
-    print '#include "pipe/p_compiler.h"'
-    print '#include "u_math.h"'
-    print '#include "u_format.h"'
-    print
-
-    generate_srgb_tables()
-
-    type = Channel(FLOAT, False, 32)
-    native_type = 'float'
-    suffix = '4f'
-
-    generate_read(formats, type, native_type, suffix)
-    generate_write(formats, type, native_type, suffix)
-
-    type = Channel(UNSIGNED, True, 8)
-    native_type = 'uint8_t'
-    suffix = '4ub'
-
-    generate_read(formats, type, native_type, suffix)
-    generate_write(formats, type, native_type, suffix)
-
-
-if __name__ == '__main__':
-    main()
diff --git a/src/gallium/auxiliary/util/u_format_pack.py b/src/gallium/auxiliary/util/u_format_pack.py
index f40b3bdf2ec..4831912f029 100644
--- a/src/gallium/auxiliary/util/u_format_pack.py
+++ b/src/gallium/auxiliary/util/u_format_pack.py
@@ -38,6 +38,7 @@
 
 
 import sys
+import math
 
 from u_format_parse import *
 
@@ -90,6 +91,20 @@ def generate_format_type(format):
     print
 
 
+def generate_srgb_tables():
+    print 'static ubyte srgb_to_linear[256] = {'
+    for i in range(256):
+        print '   %s,' % (int(math.pow((i / 255.0 + 0.055) / 1.055, 2.4) * 255))
+    print '};'
+    print
+    print 'static ubyte linear_to_srgb[256] = {'
+    print '   0,'
+    for i in range(1, 256):
+        print '   %s,' % (int((1.055 * math.pow(i / 255.0, 0.41666) - 0.055) * 255))
+    print '};'
+    print
+
+
 def bswap_format(format):
     '''Generate a structure that describes the format.'''