1 /* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included 14 * in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25 26 #ifndef MIPMAP_H 27 #define MIPMAP_H 28 29 #include "glheader.h" 30 31 struct gl_context; 32 struct gl_texture_object; 33 34 unsigned 35 _mesa_compute_num_levels(struct gl_context *ctx, 36 struct gl_texture_object *texObj, 37 GLenum target); 38 39 extern void 40 _mesa_generate_mipmap_level(GLenum target, 41 GLenum datatype, GLuint comps, 42 GLint border, 43 GLint srcWidth, GLint srcHeight, GLint srcDepth, 44 const GLubyte **srcData, 45 GLint srcRowStride, 46 GLint dstWidth, GLint dstHeight, GLint dstDepth, 47 GLubyte **dstData, 48 GLint dstRowStride); 49 50 void 51 _mesa_prepare_mipmap_levels(struct gl_context *ctx, 52 struct gl_texture_object *texObj, 53 unsigned baseLevel, unsigned maxLevel); 54 55 extern void 56 _mesa_generate_mipmap(struct gl_context *ctx, GLenum target, 57 struct gl_texture_object *texObj); 58 59 extern GLboolean 60 _mesa_next_mipmap_level_size(GLenum target, GLint border, 61 GLint srcWidth, GLint srcHeight, GLint srcDepth, 62 GLint *dstWidth, GLint *dstHeight, GLint *dstDepth); 63 64 #endif /* MIPMAP_H */ 65