reactos/dll/opengl/mesa/src/mesa/main/texstate.h

   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