3 * Texture state management.
7 * Mesa 3-D graphics library
10 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
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:
19 * The above copyright notice and this permission notice shall be included
20 * in all copies or substantial portions of the Software.
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.
39 * Return pointer to current texture unit.
40 * This the texture unit set by glActiveTexture(), not glClientActiveTexture().
42 static INLINE
struct gl_texture_unit
*
43 _mesa_get_current_tex_unit(GLcontext
*ctx
)
45 ASSERT(ctx
->Texture
.CurrentUnit
< Elements(ctx
->Texture
.Unit
));
46 return &(ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]);
51 _mesa_copy_texture_state( const GLcontext
*src
, GLcontext
*dst
);
54 _mesa_print_texunit_state( GLcontext
*ctx
, GLuint unit
);
59 * \name Called from API
63 extern void GLAPIENTRY
64 _mesa_ActiveTextureARB( GLenum target
);
66 extern void GLAPIENTRY
67 _mesa_ClientActiveTextureARB( GLenum target
);
73 * \name Initialization, state maintenance
78 _mesa_update_texture( GLcontext
*ctx
, GLuint new_state
);
81 _mesa_init_texture( GLcontext
*ctx
);
84 _mesa_free_texture_data( GLcontext
*ctx
);
87 _mesa_update_default_objects_texture(GLcontext
*ctx
);