util: Add callback to fetch a single pixel.

[mesa.git] / src / gallium / auxiliary / util / u_format_table.py

diff --git a/src/gallium/auxiliary/util/u_format_table.py b/src/gallium/auxiliary/util/u_format_table.py
index 571cab55dc8ffa30361a8b355e2d5b04fa461553..6877bd6844c3450411f8e5d5330037d3b4174b45 100755 (executable)
--- a/src/gallium/auxiliary/util/u_format_table.py
+++ b/src/gallium/auxiliary/util/u_format_table.py
@@ -33,6 +33,7 @@
 import sys
 
 from u_format_parse import *
+import u_format_pack
 
 
 def layout_map(layout):
@@ -51,7 +52,7 @@ colorspace_channels_map = {
 }
 
 
-kind_map = {
+type_map = {
     VOID:     "UTIL_FORMAT_TYPE_VOID",
     UNSIGNED: "UTIL_FORMAT_TYPE_UNSIGNED",
     SIGNED:   "UTIL_FORMAT_TYPE_SIGNED",
@@ -86,36 +87,83 @@ def write_format_table(formats):
     print
     print '#include "u_format.h"'
     print
+    print '''
+static void
+util_format_none_unpack_8unorm(uint8_t *dst, const uint8_t *src, unsigned length)
+{
+}
+
+static void
+util_format_none_pack_8unorm(uint8_t *dst, const uint8_t *src, unsigned length)
+{
+}
+
+static void
+util_format_none_unpack_float(float *dst, const uint8_t *src, unsigned length)
+{
+}
+
+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_description_table[] = '
-    print "{"
-    print "   {"
-    print "      PIPE_FORMAT_NONE,"
-    print "      \"PIPE_FORMAT_NONE\","
-    print "      {0, 0, 0},"
-    print "      0,"
-    print "      {{0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}},"
-    print "      {0, 0, 0, 0},"
-    print "      0"
-    print "   },"
+    print 'util_format_none_description = {'
+    print "   PIPE_FORMAT_NONE,"
+    print "   \"PIPE_FORMAT_NONE\","
+    print "   \"none\","
+    print "   {0, 0, 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, 0, 0, 0},"
+    print "   0,"
+    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_fetch_float"
+    print "};"
+    print
+    
+    u_format_pack.generate(formats)
+    
     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 "   \"%s\"," % (format.short_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_bitmask */" % (bool_map(format.is_bitmask()),)
+        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 "      {"
         for i in range(4):
-            type = format.in_types[i]
+            channel = format.channels[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 "      },"
-        print "      {"
+            if channel.size:
+                print "      {%s, %s, %u}%s\t/* %s = %s */" % (type_map[channel.type], bool_map(channel.norm), channel.size, sep, "xyzw"[i], channel.name)
+            else:
+                print "      {0, 0, 0}%s" % (sep,)
+        print "   },"
+        print "   {"
         for i in range(4):
-            swizzle = format.out_swizzle[i]
+            swizzle = format.swizzles[i]
             if i < 3:
                 sep = ","
             else:
@@ -124,11 +172,36 @@ 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 "      },"
-        print "      %s," % (colorspace_map(format.colorspace),)
+            print "      %s%s\t/* %s */" % (swizzle_map[swizzle], sep, comment)
         print "   },"
-    print "};"
+        print "   %s," % (colorspace_map(format.colorspace),)
+        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_fetch_float" % format.short_name() 
+        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():