1848b8605Smrg/* 2848b8605Smrg * Mesa 3-D graphics library 3848b8605Smrg * 4848b8605Smrg * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. 5848b8605Smrg * 6848b8605Smrg * Permission is hereby granted, free of charge, to any person obtaining a 7848b8605Smrg * copy of this software and associated documentation files (the "Software"), 8848b8605Smrg * to deal in the Software without restriction, including without limitation 9848b8605Smrg * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10848b8605Smrg * and/or sell copies of the Software, and to permit persons to whom the 11848b8605Smrg * Software is furnished to do so, subject to the following conditions: 12848b8605Smrg * 13848b8605Smrg * The above copyright notice and this permission notice shall be included 14848b8605Smrg * in all copies or substantial portions of the Software. 15848b8605Smrg * 16848b8605Smrg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17848b8605Smrg * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18848b8605Smrg * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19848b8605Smrg * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 20848b8605Smrg * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21848b8605Smrg * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22848b8605Smrg * OTHER DEALINGS IN THE SOFTWARE. 23848b8605Smrg */ 24848b8605Smrg 25848b8605Smrg#ifndef TEXCOMPRESS_H 26848b8605Smrg#define TEXCOMPRESS_H 27848b8605Smrg 28848b8605Smrg#include "formats.h" 29848b8605Smrg#include "glheader.h" 30848b8605Smrg 31848b8605Smrgstruct gl_context; 32848b8605Smrg 33848b8605Smrgextern GLenum 34848b8605Smrg_mesa_gl_compressed_format_base_format(GLenum format); 35848b8605Smrg 36848b8605Smrgextern GLuint 37848b8605Smrg_mesa_get_compressed_formats(struct gl_context *ctx, GLint *formats); 38848b8605Smrg 39848b8605Smrgextern mesa_format 40848b8605Smrg_mesa_glenum_to_compressed_format(GLenum format); 41848b8605Smrg 42848b8605Smrgextern GLenum 43848b8605Smrg_mesa_compressed_format_to_glenum(struct gl_context *ctx, mesa_format mesaFormat); 44848b8605Smrg 45848b8605Smrgextern GLubyte * 46848b8605Smrg_mesa_compressed_image_address(GLint col, GLint row, GLint img, 47848b8605Smrg mesa_format mesaFormat, 48848b8605Smrg GLsizei width, const GLubyte *image); 49848b8605Smrg 50848b8605Smrg 51848b8605Smrg/** A function to fetch one texel from a compressed texture */ 52848b8605Smrgtypedef void (*compressed_fetch_func)(const GLubyte *map, 53848b8605Smrg GLint rowStride, 54848b8605Smrg GLint i, GLint j, 55848b8605Smrg GLfloat *texel); 56848b8605Smrg 57848b8605Smrgextern compressed_fetch_func 58848b8605Smrg_mesa_get_compressed_fetch_func(mesa_format format); 59848b8605Smrg 60848b8605Smrg 61848b8605Smrgextern void 62848b8605Smrg_mesa_decompress_image(mesa_format format, GLuint width, GLuint height, 63848b8605Smrg const GLubyte *src, GLint srcRowStride, 64848b8605Smrg GLfloat *dest); 65848b8605Smrg 66848b8605Smrg#endif /* TEXCOMPRESS_H */ 67