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/*
* Mesa 3-D graphics library
*
* 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
* THE AUTHORS OR COPYRIGHT HOLDERS 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"
struct gl_context;
extern GLenum
_mesa_gl_compressed_format_base_format(GLenum format);
extern GLuint
_mesa_get_compressed_formats(struct gl_context *ctx, GLint *formats);
extern mesa_format
_mesa_glenum_to_compressed_format(GLenum format);
extern GLenum
_mesa_compressed_format_to_glenum(struct gl_context *ctx, mesa_format mesaFormat);
extern GLubyte *
_mesa_compressed_image_address(GLint col, GLint row, GLint img,
mesa_format mesaFormat,
GLsizei width, const GLubyte *image);
/** A function to fetch one texel from a compressed texture */
typedef void (*compressed_fetch_func)(const GLubyte *map,
GLint rowStride,
GLint i, GLint j,
GLfloat *texel);
extern compressed_fetch_func
_mesa_get_compressed_fetch_func(mesa_format format);
extern void
_mesa_decompress_image(mesa_format format, GLuint width, GLuint height,
const GLubyte *src, GLint srcRowStride,
GLfloat *dest);
#endif /* TEXCOMPRESS_H */
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