1 /** 2 * \file texstate.h 3 * Texture state management. 4 */ 5 6 /* 7 * Mesa 3-D graphics library 8 * Version: 7.1 9 * 10 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. 11 * 12 * Permission is hereby granted, free of charge, to any person obtaining a 13 * copy of this software and associated documentation files (the "Software"), 14 * to deal in the Software without restriction, including without limitation 15 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 16 * and/or sell copies of the Software, and to permit persons to whom the 17 * Software is furnished to do so, subject to the following conditions: 18 * 19 * The above copyright notice and this permission notice shall be included 20 * in all copies or substantial portions of the Software. 21 * 22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 23 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 25 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 26 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 27 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 28 */ 29 30 31 #ifndef TEXSTATE_H 32 #define TEXSTATE_H 33 34 35 #include "compiler.h" 36 #include "mtypes.h" 37 38 39 /** 40 * Return pointer to current texture unit. 41 * This the texture unit set by glActiveTexture(), not glClientActiveTexture(). 42 */ 43 static inline struct gl_texture_unit * 44 _mesa_get_current_tex_unit(struct gl_context *ctx) 45 { 46 ASSERT(ctx->Texture.CurrentUnit < Elements(ctx->Texture.Unit)); 47 return &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]); 48 } 49 50 51 extern void 52 _mesa_copy_texture_state( const struct gl_context *src, struct gl_context *dst ); 53 54 extern void 55 _mesa_print_texunit_state( struct gl_context *ctx, GLuint unit ); 56 57 58 59 /** 60 * \name Called from API 61 */ 62 /*@{*/ 63 64 extern void GLAPIENTRY 65 _mesa_ActiveTextureARB( GLenum target ); 66 67 extern void GLAPIENTRY 68 _mesa_ClientActiveTextureARB( GLenum target ); 69 70 /*@}*/ 71 72 73 /** 74 * \name Initialization, state maintenance 75 */ 76 /*@{*/ 77 78 extern void 79 _mesa_update_texture( struct gl_context *ctx, GLuint new_state ); 80 81 extern GLboolean 82 _mesa_init_texture( struct gl_context *ctx ); 83 84 extern void 85 _mesa_free_texture_data( struct gl_context *ctx ); 86 87 extern void 88 _mesa_update_default_objects_texture(struct gl_context *ctx); 89 90 /*@}*/ 91 92 #endif 93
