src/mesa/main/texcompress_s3tc.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.1
   4  *
   5  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #ifndef TEXCOMPRESS_S3TC_H
  26 #define TEXCOMPRESS_S3TC_H
  27
  28 #include "compiler.h"
  29 #include "glheader.h"
  30 #include "mfeatures.h"
  31 #include "texstore.h"
  32
  33 struct gl_context;
  34 struct swrast_texture_image;
  35
  36 #if FEATURE_texture_s3tc
  37
  38 extern GLboolean
  39 _mesa_texstore_rgb_dxt1(TEXSTORE_PARAMS);
  40
  41 extern GLboolean
  42 _mesa_texstore_rgba_dxt1(TEXSTORE_PARAMS);
  43
  44 extern GLboolean
  45 _mesa_texstore_rgba_dxt3(TEXSTORE_PARAMS);
  46
  47 extern GLboolean
  48 _mesa_texstore_rgba_dxt5(TEXSTORE_PARAMS);
  49
  50 extern void
  51 _mesa_fetch_texel_2d_f_rgb_dxt1(const struct swrast_texture_image *texImage,
  52                                 GLint i, GLint j, GLint k, GLfloat *texel);
  53
  54 extern void
  55 _mesa_fetch_texel_2d_f_rgba_dxt1(const struct swrast_texture_image *texImage,
  56                                  GLint i, GLint j, GLint k, GLfloat *texel);
  57
  58 extern void
  59 _mesa_fetch_texel_2d_f_rgba_dxt3(const struct swrast_texture_image *texImage,
  60                                  GLint i, GLint j, GLint k, GLfloat *texel);
  61
  62 extern void
  63 _mesa_fetch_texel_2d_f_rgba_dxt5(const struct swrast_texture_image *texImage,
  64                                  GLint i, GLint j, GLint k, GLfloat *texel);
  65
  66 extern void
  67 _mesa_fetch_texel_2d_f_srgb_dxt1(const struct swrast_texture_image *texImage,
  68                                  GLint i, GLint j, GLint k, GLfloat *texel);
  69
  70 extern void
  71 _mesa_fetch_texel_2d_f_srgba_dxt1(const struct swrast_texture_image *texImage,
  72                                   GLint i, GLint j, GLint k, GLfloat *texel);
  73
  74 extern void
  75 _mesa_fetch_texel_2d_f_srgba_dxt3(const struct swrast_texture_image *texImage,
  76                                   GLint i, GLint j, GLint k, GLfloat *texel);
  77
  78 extern void
  79 _mesa_fetch_texel_2d_f_srgba_dxt5(const struct swrast_texture_image *texImage,
  80                                   GLint i, GLint j, GLint k, GLfloat *texel);
  81
  82 extern void
  83 _mesa_init_texture_s3tc(struct gl_context *ctx);
  84
  85 #else /* FEATURE_texture_s3tc */
  86
  87 /* these are used only in texstore_funcs[] */
  88 #define _mesa_texstore_rgb_dxt1 NULL
  89 #define _mesa_texstore_rgba_dxt1 NULL
  90 #define _mesa_texstore_rgba_dxt3 NULL
  91 #define _mesa_texstore_rgba_dxt5 NULL
  92
  93 /* these are used only in texfetch_funcs[] */
  94 #define _mesa_fetch_texel_2d_f_rgb_dxt1 NULL
  95 #define _mesa_fetch_texel_2d_f_rgba_dxt1 NULL
  96 #define _mesa_fetch_texel_2d_f_rgba_dxt3 NULL
  97 #define _mesa_fetch_texel_2d_f_rgba_dxt5 NULL
  98 #define _mesa_fetch_texel_2d_f_srgb_dxt1 NULL
  99 #define _mesa_fetch_texel_2d_f_srgba_dxt1 NULL
 100 #define _mesa_fetch_texel_2d_f_srgba_dxt3 NULL
 101 #define _mesa_fetch_texel_2d_f_srgba_dxt5 NULL
 102
 103 static inline void
 104 _mesa_init_texture_s3tc(struct gl_context *ctx)
 105 {
 106 }
 107
 108 #endif /* FEATURE_texture_s3tc */
 109
 110 #endif /* TEXCOMPRESS_S3TC_H */