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_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_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_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_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_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_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_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_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
_mesa_init_texture_s3tc(struct gl_context * ctx)104 _mesa_init_texture_s3tc(struct gl_context *ctx)
105 {
106 }
107
108 #endif /* FEATURE_texture_s3tc */
109
110 #endif /* TEXCOMPRESS_S3TC_H */
111