texcompress.h revision aab06dc0f0bf295abe213021b79ff65d70a4f4c0 
1/*
2 * Mesa 3-D graphics library
3 * Version:  6.5.1
4 *
5 * Copyright (C) 1999-2006  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_H
26#define TEXCOMPRESS_H
27
28#include "formats.h"
29#include "glheader.h"
30#include "mfeatures.h"
31
32struct gl_context;
33
34#if _HAVE_FULL_GL
35
36extern GLenum
37_mesa_gl_compressed_format_base_format(GLenum format);
38
39extern GLuint
40_mesa_get_compressed_formats(struct gl_context *ctx, GLint *formats);
41
42extern gl_format
43_mesa_glenum_to_compressed_format(GLenum format);
44
45extern GLenum
46_mesa_compressed_format_to_glenum(struct gl_context *ctx, gl_format mesaFormat);
47
48extern GLubyte *
49_mesa_compressed_image_address(GLint col, GLint row, GLint img,
50                               gl_format mesaFormat,
51                               GLsizei width, const GLubyte *image);
52
53extern void
54_mesa_decompress_image(gl_format format, GLuint width, GLuint height,
55                       const GLubyte *src, GLint srcRowStride,
56                       GLfloat *dest);
57
58#else /* _HAVE_FULL_GL */
59
60/* no-op macros */
61#define _mesa_get_compressed_formats( c, f ) 0
62#define _mesa_compressed_image_address(c, r, i, f, w, i2 ) 0
63#define _mesa_compress_teximage( c, w, h, sF, s, sRS, dF, d, drs ) ((void)0)
64
65#endif /* _HAVE_FULL_GL */
66
67#endif /* TEXCOMPRESS_H */
68