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 /* Author:
29 * Keith Whitwell <keithw@vmware.com>
30 */
31
32
33 #include "pipe/p_defines.h"
34 #include "pipe/p_screen.h"
35 #include "util/u_debug_image.h"
36 #include "util/u_string.h"
37 #include "draw/draw_context.h"
38 #include "lp_flush.h"
39 #include "lp_context.h"
40 #include "lp_setup.h"
41
42
43 /**
44 * \param fence if non-null, returns pointer to a fence which can be waited on
45 */
46 void
llvmpipe_flush(struct pipe_context * pipe,struct pipe_fence_handle ** fence,const char * reason)47 llvmpipe_flush( struct pipe_context *pipe,
48 struct pipe_fence_handle **fence,
49 const char *reason)
50 {
51 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
52
53 draw_flush(llvmpipe->draw);
54
55 /* ask the setup module to flush */
56 lp_setup_flush(llvmpipe->setup, fence, reason);
57
58 /* Enable to dump BMPs of the color/depth buffers each frame */
59 if (0) {
60 static unsigned frame_no = 1;
61 char filename[256];
62 unsigned i;
63
64 for (i = 0; i < llvmpipe->framebuffer.nr_cbufs; i++) {
65 util_snprintf(filename, sizeof(filename), "cbuf%u_%u", i, frame_no);
66 debug_dump_surface_bmp(&llvmpipe->pipe, filename, llvmpipe->framebuffer.cbufs[i]);
67 }
68
69 if (0) {
70 util_snprintf(filename, sizeof(filename), "zsbuf_%u", frame_no);
71 debug_dump_surface_bmp(&llvmpipe->pipe, filename, llvmpipe->framebuffer.zsbuf);
72 }
73
74 ++frame_no;
75 }
76 }
77
78 void
llvmpipe_finish(struct pipe_context * pipe,const char * reason)79 llvmpipe_finish( struct pipe_context *pipe,
80 const char *reason )
81 {
82 struct pipe_fence_handle *fence = NULL;
83 llvmpipe_flush(pipe, &fence, reason);
84 if (fence) {
85 pipe->screen->fence_finish(pipe->screen, NULL, fence,
86 PIPE_TIMEOUT_INFINITE);
87 pipe->screen->fence_reference(pipe->screen, &fence, NULL);
88 }
89 }
90
91 /**
92 * Flush context if necessary.
93 *
94 * Returns FALSE if it would have block, but do_not_block was set, TRUE
95 * otherwise.
96 *
97 * TODO: move this logic to an auxiliary library?
98 */
99 boolean
llvmpipe_flush_resource(struct pipe_context * pipe,struct pipe_resource * resource,unsigned level,boolean read_only,boolean cpu_access,boolean do_not_block,const char * reason)100 llvmpipe_flush_resource(struct pipe_context *pipe,
101 struct pipe_resource *resource,
102 unsigned level,
103 boolean read_only,
104 boolean cpu_access,
105 boolean do_not_block,
106 const char *reason)
107 {
108 unsigned referenced;
109
110 referenced = llvmpipe_is_resource_referenced(pipe, resource, level);
111
112 if ((referenced & LP_REFERENCED_FOR_WRITE) ||
113 ((referenced & LP_REFERENCED_FOR_READ) && !read_only)) {
114
115 if (cpu_access) {
116 /*
117 * Flush and wait.
118 */
119 if (do_not_block)
120 return FALSE;
121
122 llvmpipe_finish(pipe, reason);
123 } else {
124 /*
125 * Just flush.
126 */
127
128 llvmpipe_flush(pipe, NULL, reason);
129 }
130 }
131
132 return TRUE;
133 }
134