1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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 VMWARE 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.
25 *
26 **************************************************************************/
27
28 /* Authors: Keith Whitwell <keithw@vmware.com>
29 */
30
31 #include "sp_context.h"
32 #include "sp_state.h"
33 #include "sp_tile_cache.h"
34
35 #include "draw/draw_context.h"
36
37 #include "util/u_format.h"
38 #include "util/u_inlines.h"
39
40
41 /**
42 * XXX this might get moved someday
43 * Set the framebuffer surface info: color buffers, zbuffer, stencil buffer.
44 * Here, we flush the old surfaces and update the tile cache to point to the new
45 * surfaces.
46 */
47 void
softpipe_set_framebuffer_state(struct pipe_context * pipe,const struct pipe_framebuffer_state * fb)48 softpipe_set_framebuffer_state(struct pipe_context *pipe,
49 const struct pipe_framebuffer_state *fb)
50 {
51 struct softpipe_context *sp = softpipe_context(pipe);
52 uint i;
53
54 draw_flush(sp->draw);
55
56 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
57 struct pipe_surface *cb = i < fb->nr_cbufs ? fb->cbufs[i] : NULL;
58
59 /* check if changing cbuf */
60 if (sp->framebuffer.cbufs[i] != cb) {
61 /* flush old */
62 sp_flush_tile_cache(sp->cbuf_cache[i]);
63
64 /* assign new */
65 pipe_surface_reference(&sp->framebuffer.cbufs[i], cb);
66
67 /* update cache */
68 sp_tile_cache_set_surface(sp->cbuf_cache[i], cb);
69 }
70 }
71
72 sp->framebuffer.nr_cbufs = fb->nr_cbufs;
73
74 /* zbuf changing? */
75 if (sp->framebuffer.zsbuf != fb->zsbuf) {
76 /* flush old */
77 sp_flush_tile_cache(sp->zsbuf_cache);
78
79 /* assign new */
80 pipe_surface_reference(&sp->framebuffer.zsbuf, fb->zsbuf);
81
82 /* update cache */
83 sp_tile_cache_set_surface(sp->zsbuf_cache, fb->zsbuf);
84
85 /* Tell draw module how deep the Z/depth buffer is
86 *
87 * If no depth buffer is bound, send the utility function the
88 * format for no bound depth (PIPE_FORMAT_NONE).
89 */
90 draw_set_zs_format(sp->draw,
91 (sp->framebuffer.zsbuf) ?
92 sp->framebuffer.zsbuf->format : PIPE_FORMAT_NONE);
93 }
94
95 sp->framebuffer.width = fb->width;
96 sp->framebuffer.height = fb->height;
97 sp->framebuffer.samples = fb->samples;
98 sp->framebuffer.layers = fb->layers;
99
100 sp->dirty |= SP_NEW_FRAMEBUFFER;
101 }
102