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
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41 * Return pointer to current texture unit.
42 * This the texture unit set by glActiveTexture(), not glClientActiveTexture().
44 static inline struct gl_texture_unit
*
45 _mesa_get_current_tex_unit(struct gl_context
*ctx
)
47 ASSERT(ctx
->Texture
.CurrentUnit
< Elements(ctx
->Texture
.Unit
));
48 return &(ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]);
53 _mesa_copy_texture_state( const struct gl_context
*src
, struct gl_context
*dst
);
56 _mesa_print_texunit_state( struct gl_context
*ctx
, GLuint unit
);
61 * \name Called from API
65 extern void GLAPIENTRY
66 _mesa_ActiveTexture( GLenum target
);
68 extern void GLAPIENTRY
69 _mesa_ClientActiveTexture( GLenum target
);
75 * \name Initialization, state maintenance
80 _mesa_update_texture( struct gl_context
*ctx
, GLuint new_state
);
83 _mesa_init_texture( struct gl_context
*ctx
);
86 _mesa_free_texture_data( struct gl_context
*ctx
);
89 _mesa_update_default_objects_texture(struct gl_context
*ctx
);