1848b8605Smrg/*
2848b8605Smrg * Mesa 3-D graphics library
3848b8605Smrg *
4848b8605Smrg * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
5848b8605Smrg *
6848b8605Smrg * Permission is hereby granted, free of charge, to any person obtaining a
7848b8605Smrg * copy of this software and associated documentation files (the "Software"),
8848b8605Smrg * to deal in the Software without restriction, including without limitation
9848b8605Smrg * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10848b8605Smrg * and/or sell copies of the Software, and to permit persons to whom the
11848b8605Smrg * Software is furnished to do so, subject to the following conditions:
12848b8605Smrg *
13848b8605Smrg * The above copyright notice and this permission notice shall be included
14848b8605Smrg * in all copies or substantial portions of the Software.
15848b8605Smrg *
16848b8605Smrg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17848b8605Smrg * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18848b8605Smrg * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19848b8605Smrg * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20848b8605Smrg * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21848b8605Smrg * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22848b8605Smrg * OTHER DEALINGS IN THE SOFTWARE.
23848b8605Smrg */
24848b8605Smrg
25848b8605Smrg
26848b8605Smrg#ifndef MIPMAP_H
27848b8605Smrg#define MIPMAP_H
28848b8605Smrg
29b8e80941Smrg#include "glheader.h"
30848b8605Smrg
31b8e80941Smrgstruct gl_context;
32b8e80941Smrgstruct gl_texture_object;
33b8e80941Smrg
34b8e80941Smrgunsigned
35b8e80941Smrg_mesa_compute_num_levels(struct gl_context *ctx,
36b8e80941Smrg                         struct gl_texture_object *texObj,
37b8e80941Smrg                         GLenum target);
38848b8605Smrg
39848b8605Smrgextern void
40848b8605Smrg_mesa_generate_mipmap_level(GLenum target,
41848b8605Smrg                            GLenum datatype, GLuint comps,
42848b8605Smrg                            GLint border,
43848b8605Smrg                            GLint srcWidth, GLint srcHeight, GLint srcDepth,
44848b8605Smrg                            const GLubyte **srcData,
45848b8605Smrg                            GLint srcRowStride,
46848b8605Smrg                            GLint dstWidth, GLint dstHeight, GLint dstDepth,
47848b8605Smrg                            GLubyte **dstData,
48848b8605Smrg                            GLint dstRowStride);
49848b8605Smrg
50b8e80941Smrgvoid
51b8e80941Smrg_mesa_prepare_mipmap_levels(struct gl_context *ctx,
52b8e80941Smrg                            struct gl_texture_object *texObj,
53b8e80941Smrg                            unsigned baseLevel, unsigned maxLevel);
54848b8605Smrg
55848b8605Smrgextern void
56848b8605Smrg_mesa_generate_mipmap(struct gl_context *ctx, GLenum target,
57848b8605Smrg                      struct gl_texture_object *texObj);
58848b8605Smrg
59848b8605Smrgextern GLboolean
60848b8605Smrg_mesa_next_mipmap_level_size(GLenum target, GLint border,
61848b8605Smrg                       GLint srcWidth, GLint srcHeight, GLint srcDepth,
62848b8605Smrg                       GLint *dstWidth, GLint *dstHeight, GLint *dstDepth);
63848b8605Smrg
64848b8605Smrg#endif /* MIPMAP_H */
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