src/util/format/u_format_table.py

   1 from __future__ import print_function
   2
   3 CopyRight = '''
   4 /**************************************************************************
   5  *
   6  * Copyright 2010 VMware, Inc.
   7  * All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the
  11  * "Software"), to deal in the Software without restriction, including
  12  * without limitation the rights to use, copy, modify, merge, publish,
  13  * distribute, sub license, and/or sell copies of the Software, and to
  14  * permit persons to whom the Software is furnished to do so, subject to
  15  * the following conditions:
  16  *
  17  * The above copyright notice and this permission notice (including the
  18  * next paragraph) shall be included in all copies or substantial portions
  19  * of the Software.
  20  *
  21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  22  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  24  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  25  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  26  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  27  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28  *
  29  **************************************************************************/
  30 '''
  31
  32
  33 import sys
  34
  35 from u_format_parse import *
  36 import u_format_pack
  37
  38
  39 def layout_map(layout):
  40     return 'UTIL_FORMAT_LAYOUT_' + str(layout).upper()
  41
  42
  43 def colorspace_map(colorspace):
  44     return 'UTIL_FORMAT_COLORSPACE_' + str(colorspace).upper()
  45
  46
  47 colorspace_channels_map = {
  48     'rgb': ['r', 'g', 'b', 'a'],
  49     'srgb': ['sr', 'sg', 'sb', 'a'],
  50     'zs': ['z', 's'],
  51     'yuv': ['y', 'u', 'v'],
  52 }
  53
  54
  55 type_map = {
  56     VOID:     "UTIL_FORMAT_TYPE_VOID",
  57     UNSIGNED: "UTIL_FORMAT_TYPE_UNSIGNED",
  58     SIGNED:   "UTIL_FORMAT_TYPE_SIGNED",
  59     FIXED:    "UTIL_FORMAT_TYPE_FIXED",
  60     FLOAT:    "UTIL_FORMAT_TYPE_FLOAT",
  61 }
  62
  63
  64 def bool_map(value):
  65     if value:
  66         return "TRUE"
  67     else:
  68         return "FALSE"
  69
  70
  71 swizzle_map = {
  72     SWIZZLE_X:    "PIPE_SWIZZLE_X",
  73     SWIZZLE_Y:    "PIPE_SWIZZLE_Y",
  74     SWIZZLE_Z:    "PIPE_SWIZZLE_Z",
  75     SWIZZLE_W:    "PIPE_SWIZZLE_W",
  76     SWIZZLE_0:    "PIPE_SWIZZLE_0",
  77     SWIZZLE_1:    "PIPE_SWIZZLE_1",
  78     SWIZZLE_NONE: "PIPE_SWIZZLE_NONE",
  79 }
  80
  81
  82 def write_format_table(formats):
  83     print('/* This file is autogenerated by u_format_table.py from u_format.csv. Do not edit directly. */')
  84     print()
  85     # This will print the copyright message on the top of this file
  86     print(CopyRight.strip())
  87     print()
  88     print('#include "u_format.h"')
  89     print('#include "u_format_bptc.h"')
  90     print('#include "u_format_s3tc.h"')
  91     print('#include "u_format_rgtc.h"')
  92     print('#include "u_format_latc.h"')
  93     print('#include "u_format_etc.h"')
  94     print()
  95
  96     u_format_pack.generate(formats)
  97
  98     def do_channel_array(channels, swizzles):
  99         print("   {")
 100         for i in range(4):
 101             channel = channels[i]
 102             if i < 3:
 103                 sep = ","
 104             else:
 105                 sep = ""
 106             if channel.size:
 107                 print("      {%s, %s, %s, %u, %u}%s\t/* %s = %s */" % (type_map[channel.type], bool_map(channel.norm), bool_map(channel.pure), channel.size, channel.shift, sep, "xyzw"[i], channel.name))
 108             else:
 109                 print("      {0, 0, 0, 0, 0}%s" % (sep,))
 110         print("   },")
 111
 112     def do_swizzle_array(channels, swizzles):
 113         print("   {")
 114         for i in range(4):
 115             swizzle = swizzles[i]
 116             if i < 3:
 117                 sep = ","
 118             else:
 119                 sep = ""
 120             try:
 121                 comment = colorspace_channels_map[format.colorspace][i]
 122             except (KeyError, IndexError):
 123                 comment = 'ignored'
 124             print("      %s%s\t/* %s */" % (swizzle_map[swizzle], sep, comment))
 125         print("   },")
 126
 127     for format in formats:
 128         sn = format.short_name()
 129
 130         print('const struct util_format_description')
 131         print('util_format_%s_description = {' % (sn,))
 132         print("   %s," % (format.name,))
 133         print("   \"%s\"," % (format.name,))
 134         print("   \"%s\"," % (sn,))
 135         print("   {%u, %u, %u, %u},\t/* block */" % (format.block_width, format.block_height, format.block_depth, format.block_size()))
 136         print("   %s," % (layout_map(format.layout),))
 137         print("   %u,\t/* nr_channels */" % (format.nr_channels(),))
 138         print("   %s,\t/* is_array */" % (bool_map(format.is_array()),))
 139         print("   %s,\t/* is_bitmask */" % (bool_map(format.is_bitmask()),))
 140         print("   %s,\t/* is_mixed */" % (bool_map(format.is_mixed()),))
 141         print("   %s,\t/* is_unorm */" % (bool_map(format.is_unorm()),))
 142         print("   %s,\t/* is_snorm */" % (bool_map(format.is_snorm()),))
 143         u_format_pack.print_channels(format, do_channel_array)
 144         u_format_pack.print_channels(format, do_swizzle_array)
 145         print("   %s," % (colorspace_map(format.colorspace),))
 146
 147         # We don't generate code for YUV formats, and many of the new ones lack pack/unpack
 148         # functions for softpipe/llvmpipe.
 149         noaccess_formats = [
 150             'yv12',
 151             'yv16',
 152             'iyuv',
 153             'nv12',
 154             'nv16',
 155             'nv21',
 156             'p010',
 157             'p012',
 158             'p016',
 159             'xyuv',
 160             'ayuv',
 161             'r8g8_r8b8_unorm',
 162             'g8r8_b8r8_unorm',
 163             'g8r8_g8b8_unorm',
 164             'y8_u8_v8_422_unorm',
 165             'y8_u8v8_422_unorm',
 166             'y8_u8_v8_444_unorm',
 167             'y16_u16_v16_420_unorm',
 168             'y16_u16_v16_422_unorm',
 169             'y16_u16v16_422_unorm',
 170             'y16_u16_v16_444_unorm',
 171         ]
 172         access = sn not in noaccess_formats
 173         if format.layout in ('astc', 'atc', 'fxt1'):
 174             access = False
 175         if format.layout == 'etc' and sn != 'etc1_rgb8':
 176             access = False
 177         if format.colorspace != ZS and not format.is_pure_color() and access:
 178             print("   .unpack_rgba_8unorm = &util_format_%s_unpack_rgba_8unorm," % sn)
 179             print("   .pack_rgba_8unorm = &util_format_%s_pack_rgba_8unorm," % sn)
 180             if format.layout == 's3tc' or format.layout == 'rgtc':
 181                 print("   .fetch_rgba_8unorm = &util_format_%s_fetch_rgba_8unorm," % sn)
 182             print("   .unpack_rgba = &util_format_%s_unpack_rgba_float," % sn)
 183             print("   .pack_rgba_float = &util_format_%s_pack_rgba_float," % sn)
 184             print("   .fetch_rgba_float = &util_format_%s_fetch_rgba_float," % sn)
 185
 186         if format.has_depth():
 187             print("   .unpack_z_32unorm = &util_format_%s_unpack_z_32unorm," % sn)
 188             print("   .pack_z_32unorm = &util_format_%s_pack_z_32unorm," % sn)
 189             print("   .unpack_z_float = &util_format_%s_unpack_z_float," % sn)
 190             print("   .pack_z_float = &util_format_%s_pack_z_float," % sn)
 191
 192         if format.has_stencil():
 193             print("   .unpack_s_8uint = &util_format_%s_unpack_s_8uint," % sn)
 194             print("   .pack_s_8uint = &util_format_%s_pack_s_8uint," % sn)
 195
 196         if format.is_pure_unsigned():
 197             print("   .unpack_rgba = &util_format_%s_unpack_unsigned," % sn)
 198             print("   .pack_rgba_uint = &util_format_%s_pack_unsigned," % sn)
 199             print("   .pack_rgba_sint = &util_format_%s_pack_signed," % sn)
 200             print("   .fetch_rgba_uint = &util_format_%s_fetch_unsigned," % sn)
 201         elif format.is_pure_signed():
 202             print("   .pack_rgba_uint = &util_format_%s_pack_unsigned," % sn)
 203             print("   .unpack_rgba = &util_format_%s_unpack_signed," % sn)
 204             print("   .pack_rgba_sint = &util_format_%s_pack_signed," % sn)
 205             print("   .fetch_rgba_sint = &util_format_%s_fetch_signed," % sn)
 206         print("};")
 207         print()
 208
 209     print("const struct util_format_description *")
 210     print("util_format_description(enum pipe_format format)")
 211     print("{")
 212     print("   if (format >= PIPE_FORMAT_COUNT) {")
 213     print("      return NULL;")
 214     print("   }")
 215     print()
 216     print("   switch (format) {")
 217     for format in formats:
 218         print("   case %s:" % format.name)
 219         print("      return &util_format_%s_description;" % (format.short_name(),))
 220     print("   default:")
 221     print("      return NULL;")
 222     print("   }")
 223     print("}")
 224     print()
 225
 226
 227 def main():
 228
 229     formats = []
 230     for arg in sys.argv[1:]:
 231         formats.extend(parse(arg))
 232     write_format_table(formats)
 233
 234
 235 if __name__ == '__main__':
 236     main()