1 /*
2  * Mesa 3-D graphics library
3  *
4  * Copyright (C) 2012-2013 LunarG, Inc.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included
14  * in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22  * DEALINGS IN THE SOFTWARE.
23  *
24  * Authors:
25  *    Courtney Goeltzenleuchter <courtney@lunarg.com>
26  */
27 
28 
29 #ifndef TEXTUREVIEW_H
30 #define TEXTUREVIEW_H
31 
32 bool
33 _mesa_texture_view_compatible_format(const struct gl_context *ctx,
34                                      GLenum origInternalFormat,
35                                      GLenum newInternalFormat);
36 
37 /**
38  * Lookup format view class based on internalformat
39  * \return VIEW_CLASS if internalformat found in table, false otherwise.
40  */
41 GLenum
42 _mesa_texture_view_lookup_view_class(const struct gl_context *ctx,
43                                      GLenum internalformat);
44 
45 void GLAPIENTRY
46 _mesa_TextureView_no_error(GLuint texture, GLenum target, GLuint origtexture,
47                            GLenum internalformat,
48                            GLuint minlevel, GLuint numlevels,
49                            GLuint minlayer, GLuint numlayers);
50 
51 extern void GLAPIENTRY
52 _mesa_TextureView(GLuint texture, GLenum target, GLuint origtexture,
53                   GLenum internalformat,
54                   GLuint minlevel, GLuint numlevels,
55                   GLuint minlayer, GLuint numlayers);
56 
57 extern void
58 _mesa_set_texture_view_state(struct gl_context *ctx,
59                              struct gl_texture_object *texObj,
60                              GLenum target, GLuint levels);
61 
62 #endif /* TEXTUREVIEW_H */
63