1/*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
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
17 * OR 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
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26#ifndef MIPMAP_H
27#define MIPMAP_H
28
29#include "glheader.h"
30
31struct gl_context;
32struct gl_texture_object;
33
34unsigned
35_mesa_compute_num_levels(struct gl_context *ctx,
36                         struct gl_texture_object *texObj,
37                         GLenum target);
38
39extern void
40_mesa_generate_mipmap_level(GLenum target,
41                            GLenum datatype, GLuint comps,
42                            GLint border,
43                            GLint srcWidth, GLint srcHeight, GLint srcDepth,
44                            const GLubyte **srcData,
45                            GLint srcRowStride,
46                            GLint dstWidth, GLint dstHeight, GLint dstDepth,
47                            GLubyte **dstData,
48                            GLint dstRowStride);
49
50void
51_mesa_prepare_mipmap_levels(struct gl_context *ctx,
52                            struct gl_texture_object *texObj,
53                            unsigned baseLevel, unsigned maxLevel);
54
55extern void
56_mesa_generate_mipmap(struct gl_context *ctx, GLenum target,
57                      struct gl_texture_object *texObj);
58
59extern GLboolean
60_mesa_next_mipmap_level_size(GLenum target, GLint border,
61                       GLint srcWidth, GLint srcHeight, GLint srcDepth,
62                       GLint *dstWidth, GLint *dstHeight, GLint *dstDepth);
63
64#endif /* MIPMAP_H */
65