texstate.h revision 848b8605 
1848b8605Smrg/**
2848b8605Smrg * \file texstate.h
3848b8605Smrg * Texture state management.
4848b8605Smrg */
5848b8605Smrg
6848b8605Smrg/*
7848b8605Smrg * Mesa 3-D graphics library
8848b8605Smrg *
9848b8605Smrg * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
10848b8605Smrg *
11848b8605Smrg * Permission is hereby granted, free of charge, to any person obtaining a
12848b8605Smrg * copy of this software and associated documentation files (the "Software"),
13848b8605Smrg * to deal in the Software without restriction, including without limitation
14848b8605Smrg * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15848b8605Smrg * and/or sell copies of the Software, and to permit persons to whom the
16848b8605Smrg * Software is furnished to do so, subject to the following conditions:
17848b8605Smrg *
18848b8605Smrg * The above copyright notice and this permission notice shall be included
19848b8605Smrg * in all copies or substantial portions of the Software.
20848b8605Smrg *
21848b8605Smrg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22848b8605Smrg * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23848b8605Smrg * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
24848b8605Smrg * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
25848b8605Smrg * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
26848b8605Smrg * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
27848b8605Smrg * OTHER DEALINGS IN THE SOFTWARE.
28848b8605Smrg */
29848b8605Smrg
30848b8605Smrg
31848b8605Smrg#ifndef TEXSTATE_H
32848b8605Smrg#define TEXSTATE_H
33848b8605Smrg
34848b8605Smrg
35848b8605Smrg#include "compiler.h"
36848b8605Smrg#include "mtypes.h"
37848b8605Smrg
38848b8605Smrg
39848b8605Smrg/**
40848b8605Smrg * Return pointer to current texture unit.
41848b8605Smrg * This the texture unit set by glActiveTexture(), not glClientActiveTexture().
42848b8605Smrg */
43848b8605Smrgstatic inline struct gl_texture_unit *
44848b8605Smrg_mesa_get_current_tex_unit(struct gl_context *ctx)
45848b8605Smrg{
46848b8605Smrg   ASSERT(ctx->Texture.CurrentUnit < Elements(ctx->Texture.Unit));
47848b8605Smrg   return &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
48848b8605Smrg}
49848b8605Smrg
50848b8605Smrg
51848b8605Smrgextern void
52848b8605Smrg_mesa_copy_texture_state( const struct gl_context *src, struct gl_context *dst );
53848b8605Smrg
54848b8605Smrgextern void
55848b8605Smrg_mesa_print_texunit_state( struct gl_context *ctx, GLuint unit );
56848b8605Smrg
57848b8605Smrg
58848b8605Smrg
59848b8605Smrg/**
60848b8605Smrg * \name Called from API
61848b8605Smrg */
62848b8605Smrg/*@{*/
63848b8605Smrg
64848b8605Smrgextern void GLAPIENTRY
65848b8605Smrg_mesa_ActiveTexture( GLenum target );
66848b8605Smrg
67848b8605Smrgextern void GLAPIENTRY
68848b8605Smrg_mesa_ClientActiveTexture( GLenum target );
69848b8605Smrg
70848b8605Smrg/*@}*/
71848b8605Smrg
72848b8605Smrg
73848b8605Smrg/**
74848b8605Smrg * \name Initialization, state maintenance
75848b8605Smrg */
76848b8605Smrg/*@{*/
77848b8605Smrg
78848b8605Smrgextern void
79848b8605Smrg_mesa_update_texture( struct gl_context *ctx, GLuint new_state );
80848b8605Smrg
81848b8605Smrgextern GLboolean
82848b8605Smrg_mesa_init_texture( struct gl_context *ctx );
83848b8605Smrg
84848b8605Smrgextern void
85848b8605Smrg_mesa_free_texture_data( struct gl_context *ctx );
86848b8605Smrg
87848b8605Smrgextern void
88848b8605Smrg_mesa_update_default_objects_texture(struct gl_context *ctx);
89848b8605Smrg
90848b8605Smrg/*@}*/
91848b8605Smrg
92848b8605Smrg#endif
93