util: Cope with the fact that formats in u_format.csv are not ordered.

src/gallium/auxiliary/Makefile

@@ -105,7 +105,6 @@ C_SOURCES = \
 	util/u_cpu_detect.c \
 	util/u_dl.c \
 	util/u_draw_quad.c \
-	util/u_format.c \
 	util/u_format_access.c \
 	util/u_format_table.c \
 	util/u_gen_mipmap.c \

src/gallium/auxiliary/SConscript

@@ -140,7 +140,6 @@ source = [
     'util/u_dump_state.c',
     'util/u_dl.c',
     'util/u_draw_quad.c',
-    'util/u_format.c',
     'util/u_format_access.c',
     'util/u_format_table.c',
     'util/u_gen_mipmap.c',

src/gallium/auxiliary/util/u_format.c

@@ -1,45 +0,0 @@
-/**************************************************************************
- *
- * 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.
- *
- **************************************************************************/
-
-
-#include "u_format.h"
-
-
-const struct util_format_description *
-util_format_description(enum pipe_format format)
-{
-   const struct util_format_description *desc;
-
-   if (format >= PIPE_FORMAT_COUNT) {
-      return NULL;
-   }
-
-   desc = &util_format_description_table[format];
-   assert(desc->format == format);
-
-   return desc;
-}

src/gallium/auxiliary/util/u_format_table.py

@@ -87,39 +87,39 @@ def write_format_table(formats):
     print '#include "u_format.h"'
     print
     print 'const struct util_format_description'
-    print 'util_format_description_table[] = '
+    print 'util_format_none_description = {'
-    print "{"
+    print "   PIPE_FORMAT_NONE,"
-    print "   {"
+    print "   \"PIPE_FORMAT_NONE\","
-    print "      PIPE_FORMAT_NONE,"
+    print "   {0, 0, 0},"
-    print "      \"PIPE_FORMAT_NONE\","
+    print "   0,"
-    print "      {0, 0, 0},"
+    print "   0,"
-    print "      0,"
+    print "   0,"
-    print "      0,"
+    print "   0,"
-    print "      0,"
+    print "   {{0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}},"
-    print "      0,"
+    print "   {0, 0, 0, 0},"
-    print "      {{0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}},"
+    print "   0"
-    print "      {0, 0, 0, 0},"
+    print "};"
-    print "      0"
+    print
-    print "   },"
     for format in formats:
+        print 'const struct util_format_description'
+        print 'util_format_%s_description = {' % (format.short_name(),)
+        print "   %s," % (format.name,)
+        print "   \"%s\"," % (format.name,)
+        print "   {%u, %u, %u},\t/* block */" % (format.block_width, format.block_height, format.block_size())
+        print "   %s," % (layout_map(format.layout),)
+        print "   %u,\t/* nr_channels */" % (format.nr_channels(),)
+        print "   %s,\t/* is_array */" % (bool_map(format.is_array()),)
+        print "   %s,\t/* is_mixed */" % (bool_map(format.is_mixed()),)
         print "   {"
-        print "      %s," % (format.name,)
-        print "      \"%s\"," % (format.name,)
-        print "      {%u, %u, %u},\t/* block */" % (format.block_width, format.block_height, format.block_size())
-        print "      %s," % (layout_map(format.layout),)
-        print "      %u,\t/* nr_channels */" % (format.nr_channels(),)
-        print "      %s,\t/* is_array */" % (bool_map(format.is_array()),)
-        print "      %s,\t/* is_mixed */" % (bool_map(format.is_mixed()),)
-        print "      {"
         for i in range(4):
             type = format.in_types[i]
             if i < 3:
                 sep = ","
             else:
                 sep = ""
-            print "         {%s, %s, %u}%s\t/* %s */" % (kind_map[type.kind], bool_map(type.norm), type.size, sep, "xyzw"[i])
+            print "      {%s, %s, %u}%s\t/* %s */" % (kind_map[type.kind], bool_map(type.norm), type.size, sep, "xyzw"[i])
-        print "      },"
+        print "   },"
-        print "      {"
+        print "   {"
         for i in range(4):
             swizzle = format.out_swizzle[i]
             if i < 3:
@@ -130,11 +130,30 @@ def write_format_table(formats):
                 comment = colorspace_channels_map[format.colorspace][i]
             except (KeyError, IndexError):
                 comment = 'ignored'
-            print "         %s%s\t/* %s */" % (swizzle_map[swizzle], sep, comment)
+            print "      %s%s\t/* %s */" % (swizzle_map[swizzle], sep, comment)
-        print "      },"
-        print "      %s," % (colorspace_map(format.colorspace),)
         print "   },"
+        print "   %s," % (colorspace_map(format.colorspace),)
+        print "};"
+        print
+    print "const struct util_format_description *"
+    print "util_format_description(enum pipe_format format)"
+    print "{"
+    print "   if (format >= PIPE_FORMAT_COUNT) {"
+    print "      return NULL;"
+    print "   }"
+    print
+    print "   switch (format) {"
+    print "   case PIPE_FORMAT_NONE:"
+    print "      return &util_format_none_description;"
+    for format in formats:
+        print "   case %s:" % format.name
+        print "      return &util_format_%s_description;" % (format.short_name(),)
+    print "   default:"
+    print "      assert(0);"
+    print "      return NULL;"
+    print "   }"
     print "};"
+    print
 
 
 def main():