1bf215546Sopenharmony_ci/* 2bf215546Sopenharmony_ci * Mesa 3-D graphics library 3bf215546Sopenharmony_ci * 4bf215546Sopenharmony_ci * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. 5bf215546Sopenharmony_ci * 6bf215546Sopenharmony_ci * Permission is hereby granted, free of charge, to any person obtaining a 7bf215546Sopenharmony_ci * copy of this software and associated documentation files (the "Software"), 8bf215546Sopenharmony_ci * to deal in the Software without restriction, including without limitation 9bf215546Sopenharmony_ci * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10bf215546Sopenharmony_ci * and/or sell copies of the Software, and to permit persons to whom the 11bf215546Sopenharmony_ci * Software is furnished to do so, subject to the following conditions: 12bf215546Sopenharmony_ci * 13bf215546Sopenharmony_ci * The above copyright notice and this permission notice shall be included 14bf215546Sopenharmony_ci * in all copies or substantial portions of the Software. 15bf215546Sopenharmony_ci * 16bf215546Sopenharmony_ci * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17bf215546Sopenharmony_ci * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18bf215546Sopenharmony_ci * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19bf215546Sopenharmony_ci * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 20bf215546Sopenharmony_ci * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21bf215546Sopenharmony_ci * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22bf215546Sopenharmony_ci * OTHER DEALINGS IN THE SOFTWARE. 23bf215546Sopenharmony_ci */ 24bf215546Sopenharmony_ci 25bf215546Sopenharmony_ci#ifndef TEXCOMPRESS_H 26bf215546Sopenharmony_ci#define TEXCOMPRESS_H 27bf215546Sopenharmony_ci 28bf215546Sopenharmony_ci#include "formats.h" 29bf215546Sopenharmony_ci#include "glheader.h" 30bf215546Sopenharmony_ci 31bf215546Sopenharmony_cistruct gl_context; 32bf215546Sopenharmony_ci 33bf215546Sopenharmony_ciextern GLenum 34bf215546Sopenharmony_ci_mesa_gl_compressed_format_base_format(GLenum format); 35bf215546Sopenharmony_ci 36bf215546Sopenharmony_ciextern GLuint 37bf215546Sopenharmony_ci_mesa_get_compressed_formats(struct gl_context *ctx, GLint *formats); 38bf215546Sopenharmony_ci 39bf215546Sopenharmony_ciextern mesa_format 40bf215546Sopenharmony_ci_mesa_glenum_to_compressed_format(GLenum format); 41bf215546Sopenharmony_ci 42bf215546Sopenharmony_ciextern GLenum 43bf215546Sopenharmony_ci_mesa_compressed_format_to_glenum(struct gl_context *ctx, mesa_format mesaFormat); 44bf215546Sopenharmony_ci 45bf215546Sopenharmony_ciextern GLubyte * 46bf215546Sopenharmony_ci_mesa_compressed_image_address(GLint col, GLint row, GLint img, 47bf215546Sopenharmony_ci mesa_format mesaFormat, 48bf215546Sopenharmony_ci GLsizei width, const GLubyte *image); 49bf215546Sopenharmony_ci 50bf215546Sopenharmony_ci 51bf215546Sopenharmony_ci/** A function to fetch one texel from a compressed texture */ 52bf215546Sopenharmony_citypedef void (*compressed_fetch_func)(const GLubyte *map, 53bf215546Sopenharmony_ci GLint rowStride, 54bf215546Sopenharmony_ci GLint i, GLint j, 55bf215546Sopenharmony_ci GLfloat *texel); 56bf215546Sopenharmony_ci 57bf215546Sopenharmony_ciextern compressed_fetch_func 58bf215546Sopenharmony_ci_mesa_get_compressed_fetch_func(mesa_format format); 59bf215546Sopenharmony_ci 60bf215546Sopenharmony_ci 61bf215546Sopenharmony_ciextern void 62bf215546Sopenharmony_ci_mesa_decompress_image(mesa_format format, GLuint width, GLuint height, 63bf215546Sopenharmony_ci const GLubyte *src, GLint srcRowStride, 64bf215546Sopenharmony_ci GLfloat *dest); 65bf215546Sopenharmony_ci 66bf215546Sopenharmony_ci#endif /* TEXCOMPRESS_H */ 67