src/mesa/main/texcompress.h

/*
 * Mesa 3-D graphics library
 * Version:  6.5.1
 *
 * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef TEXCOMPRESS_H
#define TEXCOMPRESS_H

#include "formats.h"
#include "glheader.h"
#include "mfeatures.h"

struct gl_context;

#if _HAVE_FULL_GL

extern GLenum
_mesa_gl_compressed_format_base_format(GLenum format);

extern GLuint
_mesa_get_compressed_formats(struct gl_context *ctx, GLint *formats);

extern gl_format
_mesa_glenum_to_compressed_format(GLenum format);

extern GLenum
_mesa_compressed_format_to_glenum(struct gl_context *ctx, gl_format mesaFormat);

extern GLubyte *
_mesa_compressed_image_address(GLint col, GLint row, GLint img,
                               gl_format mesaFormat,
                               GLsizei width, const GLubyte *image);

extern void
_mesa_decompress_image(gl_format format, GLuint width, GLuint height,
                       const GLubyte *src, GLint srcRowStride,
                       GLfloat *dest);

#else /* _HAVE_FULL_GL */

/* no-op macros */
#define _mesa_get_compressed_formats( c, f ) 0
#define _mesa_compressed_image_address(c, r, i, f, w, i2 ) 0
#define _mesa_compress_teximage( c, w, h, sF, s, sRS, dF, d, drs ) ((void)0)

#endif /* _HAVE_FULL_GL */

#endif /* TEXCOMPRESS_H */