readpix.h revision 848b8605
1848b8605Smrg/*
2848b8605Smrg * Mesa 3-D graphics library
3848b8605Smrg *
4848b8605Smrg * Copyright (C) 1999-2008  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 READPIXELS_H
27848b8605Smrg#define READPIXELS_H
28848b8605Smrg
29848b8605Smrg
30848b8605Smrg#include "glheader.h"
31848b8605Smrg
32848b8605Smrgstruct gl_context;
33848b8605Smrgstruct gl_pixelstore_attrib;
34848b8605Smrg
35848b8605Smrg
36848b8605Smrgextern GLboolean
37848b8605Smrg_mesa_readpixels_needs_slow_path(const struct gl_context *ctx, GLenum format,
38848b8605Smrg                                 GLenum type, GLboolean uses_blit);
39848b8605Smrg
40848b8605Smrgextern void
41848b8605Smrg_mesa_readpixels(struct gl_context *ctx,
42848b8605Smrg                 GLint x, GLint y, GLsizei width, GLsizei height,
43848b8605Smrg                 GLenum format, GLenum type,
44848b8605Smrg                 const struct gl_pixelstore_attrib *packing,
45848b8605Smrg                 GLvoid *pixels);
46848b8605Smrg
47848b8605Smrgextern void GLAPIENTRY
48848b8605Smrg_mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height,
49848b8605Smrg                  GLenum format, GLenum type, GLvoid *pixels );
50848b8605Smrg
51848b8605Smrgextern void GLAPIENTRY
52848b8605Smrg_mesa_ReadnPixelsARB( GLint x, GLint y, GLsizei width, GLsizei height,
53848b8605Smrg		      GLenum format, GLenum type, GLsizei bufSize,
54848b8605Smrg                      GLvoid *pixels );
55848b8605Smrg
56848b8605Smrg#endif
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