1 /*
2  * Copyright (C) 2011 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21  * DEALINGS IN THE SOFTWARE.
22  */
23 
24 #ifndef TEXCOMPRESS_RGTC_H
25 #define TEXCOMPRESS_RGTC_H
26 
27 #include "glheader.h"
28 #include "mfeatures.h"
29 #include "texstore.h"
30 
31 struct swrast_texture_image;
32 
33 extern GLboolean
34 _mesa_texstore_red_rgtc1(TEXSTORE_PARAMS);
35 
36 extern GLboolean
37 _mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS);
38 
39 extern GLboolean
40 _mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS);
41 
42 extern GLboolean
43 _mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS);
44 
45 extern void
46 _mesa_fetch_texel_red_rgtc1(const struct swrast_texture_image *texImage,
47                             GLint i, GLint j, GLint k, GLfloat *texel);
48 
49 extern void
50 _mesa_fetch_texel_signed_red_rgtc1(const struct swrast_texture_image *texImage,
51                                    GLint i, GLint j, GLint k, GLfloat *texel);
52 
53 extern void
54 _mesa_fetch_texel_rg_rgtc2(const struct swrast_texture_image *texImage,
55                            GLint i, GLint j, GLint k, GLfloat *texel);
56 
57 extern void
58 _mesa_fetch_texel_signed_rg_rgtc2(const struct swrast_texture_image *texImage,
59                                   GLint i, GLint j, GLint k, GLfloat *texel);
60 
61 extern void
62 _mesa_fetch_texel_l_latc1(const struct swrast_texture_image *texImage,
63                           GLint i, GLint j, GLint k, GLfloat *texel);
64 
65 extern void
66 _mesa_fetch_texel_signed_l_latc1(const struct swrast_texture_image *texImage,
67                                  GLint i, GLint j, GLint k, GLfloat *texel);
68 
69 extern void
70 _mesa_fetch_texel_la_latc2(const struct swrast_texture_image *texImage,
71                            GLint i, GLint j, GLint k, GLfloat *texel);
72 
73 extern void
74 _mesa_fetch_texel_signed_la_latc2(const struct swrast_texture_image *texImage,
75                                   GLint i, GLint j, GLint k, GLfloat *texel);
76 
77 #endif
78