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
32bool
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 */
41GLenum
42_mesa_texture_view_lookup_view_class(const struct gl_context *ctx,
43                                     GLenum internalformat);
44
45void 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
51extern 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
57extern 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