1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
5 * Copyright 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
35 #include "pipe/p_defines.h"
36 #include "util/u_pack_color.h"
38 #include "lp_context.h"
39 #include "lp_surface.h"
41 #include "lp_tile_cache.h"
45 * Clear the given buffers to the specified values.
46 * No masking, no scissor (clear entire buffer).
49 llvmpipe_clear(struct pipe_context
*pipe
, unsigned buffers
, const float *rgba
,
50 double depth
, unsigned stencil
)
52 struct llvmpipe_context
*llvmpipe
= llvmpipe_context(pipe
);
56 if (llvmpipe
->no_rast
)
60 llvmpipe_update_derived(llvmpipe
); /* not needed?? */
63 if (buffers
& PIPE_CLEAR_COLOR
) {
64 for (i
= 0; i
< llvmpipe
->framebuffer
.nr_cbufs
; i
++) {
65 struct pipe_surface
*ps
= llvmpipe
->framebuffer
.cbufs
[i
];
67 util_pack_color(rgba
, ps
->format
, &cv
);
68 lp_tile_cache_clear(llvmpipe
->cbuf_cache
[i
], rgba
, cv
);
72 if (buffers
& PIPE_CLEAR_DEPTHSTENCIL
) {
73 struct pipe_surface
*ps
= llvmpipe
->framebuffer
.zsbuf
;
75 cv
= util_pack_z_stencil(ps
->format
, depth
, stencil
);
77 /* non-cached surface */
78 pipe
->surface_fill(pipe
, ps
, 0, 0, ps
->width
, ps
->height
, cv
);