1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
29 #include "main/imports.h"
30 #include "main/readpix.h"
33 #include "st_context.h"
34 #include "st_cb_bitmap.h"
35 #include "st_cb_readpixels.h"
39 * The only special thing we need to do for the state tracker's
40 * glReadPixels is to validate state (to be sure we have up-to-date
41 * framebuffer surfaces) and flush the bitmap cache prior to reading.
44 st_readpixels(struct gl_context
*ctx
, GLint x
, GLint y
,
45 GLsizei width
, GLsizei height
,
46 GLenum format
, GLenum type
,
47 const struct gl_pixelstore_attrib
*pack
,
50 struct st_context
*st
= st_context(ctx
);
52 st_validate_state(st
);
53 st_flush_bitmap_cache(st
);
54 _mesa_readpixels(ctx
, x
, y
, width
, height
, format
, type
, pack
, dest
);
58 void st_init_readpixels_functions(struct dd_function_table
*functions
)
60 functions
->ReadPixels
= st_readpixels
;