1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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"
37 #include "util/u_surface.h"
39 #include "sp_context.h"
41 #include "sp_tile_cache.h"
45 * Clear the given buffers to the specified values.
46 * No masking, no scissor (clear entire buffer).
49 softpipe_clear(struct pipe_context
*pipe
, unsigned buffers
,
50 const union pipe_color_union
*color
,
51 double depth
, unsigned stencil
)
53 struct softpipe_context
*softpipe
= softpipe_context(pipe
);
54 struct pipe_surface
*zsbuf
= softpipe
->framebuffer
.zsbuf
;
55 unsigned zs_buffers
= buffers
& PIPE_CLEAR_DEPTHSTENCIL
;
59 if (softpipe
->no_rast
)
62 if (!softpipe_check_render_cond(softpipe
))
66 softpipe_update_derived(softpipe
, PIPE_PRIM_TRIANGLES
); /* not needed?? */
69 if (buffers
& PIPE_CLEAR_COLOR
) {
70 for (i
= 0; i
< softpipe
->framebuffer
.nr_cbufs
; i
++) {
71 if (buffers
& (PIPE_CLEAR_COLOR0
<< i
))
72 sp_tile_cache_clear(softpipe
->cbuf_cache
[i
], color
, 0);
77 util_format_is_depth_and_stencil(zsbuf
->texture
->format
) &&
78 zs_buffers
!= PIPE_CLEAR_DEPTHSTENCIL
) {
79 /* Clearing only depth or stencil in a combined depth-stencil buffer. */
80 util_clear_depth_stencil(pipe
, zsbuf
, zs_buffers
, depth
, stencil
,
81 0, 0, zsbuf
->width
, zsbuf
->height
);
83 else if (zs_buffers
) {
84 static const union pipe_color_union zero
;
86 cv
= util_pack64_z_stencil(zsbuf
->format
, depth
, stencil
);
87 sp_tile_cache_clear(softpipe
->zsbuf_cache
, &zero
, cv
);
90 softpipe
->dirty_render_cache
= TRUE
;