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 "draw/draw_context.h"
36 #include "sp_flush.h"
37 #include "sp_context.h"
38 #include "sp_state.h"
39 #include "sp_tile_cache.h"
40 #include "sp_tex_tile_cache.h"
41 #include "util/u_debug_image.h"
42 #include "util/u_memory.h"
43 #include "util/u_string.h"
44
45
46 void
softpipe_flush(struct pipe_context * pipe,unsigned flags,struct pipe_fence_handle ** fence)47 softpipe_flush( struct pipe_context *pipe,
48 unsigned flags,
49 struct pipe_fence_handle **fence )
50 {
51 struct softpipe_context *softpipe = softpipe_context(pipe);
52 uint i;
53
54 draw_flush(softpipe->draw);
55
56 if (flags & SP_FLUSH_TEXTURE_CACHE) {
57 unsigned sh;
58
59 for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
60 for (i = 0; i < softpipe->num_sampler_views[sh]; i++) {
61 sp_flush_tex_tile_cache(softpipe->tex_cache[sh][i]);
62 }
63 }
64 }
65
66 /* If this is a swapbuffers, just flush color buffers.
67 *
68 * The zbuffer changes are not discarded, but held in the cache
69 * in the hope that a later clear will wipe them out.
70 */
71 for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++)
72 if (softpipe->cbuf_cache[i])
73 sp_flush_tile_cache(softpipe->cbuf_cache[i]);
74
75 if (softpipe->zsbuf_cache)
76 sp_flush_tile_cache(softpipe->zsbuf_cache);
77
78 softpipe->dirty_render_cache = FALSE;
79
80 /* Enable to dump BMPs of the color/depth buffers each frame */
81 #if 0
82 if (flags & PIPE_FLUSH_END_OF_FRAME) {
83 static unsigned frame_no = 1;
84 static char filename[256];
85 snprintf(filename, sizeof(filename), "cbuf_%u.bmp", frame_no);
86 debug_dump_surface_bmp(pipe, filename, softpipe->framebuffer.cbufs[0]);
87 snprintf(filename, sizeof(filename), "zsbuf_%u.bmp", frame_no);
88 debug_dump_surface_bmp(pipe, filename, softpipe->framebuffer.zsbuf);
89 ++frame_no;
90 }
91 #endif
92
93 if (fence)
94 *fence = (void*)(intptr_t)1;
95 }
96
97 void
softpipe_flush_wrapped(struct pipe_context * pipe,struct pipe_fence_handle ** fence,unsigned flags)98 softpipe_flush_wrapped(struct pipe_context *pipe,
99 struct pipe_fence_handle **fence,
100 unsigned flags)
101 {
102 softpipe_flush(pipe, SP_FLUSH_TEXTURE_CACHE, fence);
103 }
104
105
106 /**
107 * Flush context if necessary.
108 *
109 * Returns FALSE if it would have block, but do_not_block was set, TRUE
110 * otherwise.
111 *
112 * TODO: move this logic to an auxiliary library?
113 */
114 boolean
softpipe_flush_resource(struct pipe_context * pipe,struct pipe_resource * texture,unsigned level,int layer,unsigned flush_flags,boolean read_only,boolean cpu_access,boolean do_not_block)115 softpipe_flush_resource(struct pipe_context *pipe,
116 struct pipe_resource *texture,
117 unsigned level,
118 int layer,
119 unsigned flush_flags,
120 boolean read_only,
121 boolean cpu_access,
122 boolean do_not_block)
123 {
124 unsigned referenced;
125
126 referenced = softpipe_is_resource_referenced(pipe, texture, level, layer);
127
128 if ((referenced & SP_REFERENCED_FOR_WRITE) ||
129 ((referenced & SP_REFERENCED_FOR_READ) && !read_only)) {
130
131 /*
132 * TODO: The semantics of these flush flags are too obtuse. They should
133 * disappear and the pipe driver should just ensure that all visible
134 * side-effects happen when they need to happen.
135 */
136 if (referenced & SP_REFERENCED_FOR_READ)
137 flush_flags |= SP_FLUSH_TEXTURE_CACHE;
138
139 if (cpu_access) {
140 /*
141 * Flush and wait.
142 */
143
144 struct pipe_fence_handle *fence = NULL;
145
146 if (do_not_block)
147 return FALSE;
148
149 softpipe_flush(pipe, flush_flags, &fence);
150
151 if (fence) {
152 /*
153 * This is for illustrative purposes only, as softpipe does not
154 * have fences.
155 */
156 pipe->screen->fence_finish(pipe->screen, NULL, fence,
157 PIPE_TIMEOUT_INFINITE);
158 pipe->screen->fence_reference(pipe->screen, &fence, NULL);
159 }
160 } else {
161 /*
162 * Just flush.
163 */
164
165 softpipe_flush(pipe, flush_flags, NULL);
166 }
167 }
168
169 return TRUE;
170 }
171
softpipe_texture_barrier(struct pipe_context * pipe,unsigned flags)172 void softpipe_texture_barrier(struct pipe_context *pipe, unsigned flags)
173 {
174 struct softpipe_context *softpipe = softpipe_context(pipe);
175 uint i, sh;
176
177 for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
178 for (i = 0; i < softpipe->num_sampler_views[sh]; i++) {
179 sp_flush_tex_tile_cache(softpipe->tex_cache[sh][i]);
180 }
181 }
182
183 for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++)
184 if (softpipe->cbuf_cache[i])
185 sp_flush_tile_cache(softpipe->cbuf_cache[i]);
186
187 if (softpipe->zsbuf_cache)
188 sp_flush_tile_cache(softpipe->zsbuf_cache);
189
190 softpipe->dirty_render_cache = FALSE;
191 }
192
softpipe_memory_barrier(struct pipe_context * pipe,unsigned flags)193 void softpipe_memory_barrier(struct pipe_context *pipe, unsigned flags)
194 {
195 if (!(flags & ~PIPE_BARRIER_UPDATE))
196 return;
197
198 softpipe_texture_barrier(pipe, 0);
199 }
200