1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 **********************************************************/
26 #include "pipe/p_state.h"
27 #include "pipe/p_context.h"
28 #include "util/u_memory.h"
31 #include "svga_context.h"
32 #include "svga_screen.h"
33 #include "svga_screen_buffer.h"
34 #include "svga_winsys.h"
35 #include "svga_draw.h"
36 #include "svga_debug.h"
39 /* Fixme: want a public base class for all pipe structs, even if there
47 struct pipe_query base;
49 struct svga_winsys_buffer *hwbuf;
50 volatile SVGA3dQueryResult *queryResult;
51 struct pipe_fence_handle *fence;
54 /***********************************************************************
55 * Inline conversion functions. These are better-typed than the
56 * macros used previously:
58 static INLINE struct svga_query *
59 svga_query( struct pipe_query *q )
61 return (struct svga_query *)q;
64 static boolean svga_get_query_result(struct pipe_context *pipe,
69 static struct pipe_query *svga_create_query( struct pipe_context *pipe,
72 struct svga_screen *svgascreen = svga_screen(pipe->screen);
73 struct svga_winsys_screen *sws = svgascreen->sws;
74 struct svga_query *sq;
76 SVGA_DBG(DEBUG_QUERY, "%s\n", __FUNCTION__);
78 sq = CALLOC_STRUCT(svga_query);
82 sq->type = SVGA3D_QUERYTYPE_OCCLUSION;
84 sq->hwbuf = svga_winsys_buffer_create(svgascreen,
86 SVGA_BUFFER_USAGE_PINNED,
87 sizeof *sq->queryResult);
91 sq->queryResult = (SVGA3dQueryResult *)sws->buffer_map(sws,
93 PIPE_BUFFER_USAGE_CPU_WRITE);
97 sq->queryResult->totalSize = sizeof *sq->queryResult;
98 sq->queryResult->state = SVGA3D_QUERYSTATE_NEW;
101 * We request the buffer to be pinned and assume it is always mapped.
103 * The reason is that we don't want to wait for fences when checking the
106 sws->buffer_unmap(sws, sq->hwbuf);
111 sws->buffer_destroy(sws, sq->hwbuf);
118 static void svga_destroy_query(struct pipe_context *pipe,
119 struct pipe_query *q)
121 struct svga_screen *svgascreen = svga_screen(pipe->screen);
122 struct svga_winsys_screen *sws = svgascreen->sws;
123 struct svga_query *sq = svga_query( q );
125 SVGA_DBG(DEBUG_QUERY, "%s\n", __FUNCTION__);
126 sws->buffer_destroy(sws, sq->hwbuf);
127 sws->fence_reference(sws, &sq->fence, NULL);
131 static void svga_begin_query(struct pipe_context *pipe,
132 struct pipe_query *q)
134 struct svga_screen *svgascreen = svga_screen(pipe->screen);
135 struct svga_winsys_screen *sws = svgascreen->sws;
136 struct svga_context *svga = svga_context( pipe );
137 struct svga_query *sq = svga_query( q );
140 SVGA_DBG(DEBUG_QUERY, "%s\n", __FUNCTION__);
144 /* Need to flush out buffered drawing commands so that they don't
145 * get counted in the query results.
147 svga_hwtnl_flush_retry(svga);
149 if(sq->queryResult->state == SVGA3D_QUERYSTATE_PENDING) {
150 /* The application doesn't care for the pending query result. We cannot
151 * let go the existing buffer and just get a new one because its storage
152 * may be reused for other purposes and clobbered by the host when it
153 * determines the query result. So the only option here is to wait for
154 * the existing query's result -- not a big deal, given that no sane
155 * application would do this.
159 svga_get_query_result(pipe, q, TRUE, &result);
161 assert(sq->queryResult->state != SVGA3D_QUERYSTATE_PENDING);
164 sq->queryResult->state = SVGA3D_QUERYSTATE_NEW;
165 sws->fence_reference(sws, &sq->fence, NULL);
167 ret = SVGA3D_BeginQuery(svga->swc, sq->type);
169 svga_context_flush(svga, NULL);
170 ret = SVGA3D_BeginQuery(svga->swc, sq->type);
171 assert(ret == PIPE_OK);
177 static void svga_end_query(struct pipe_context *pipe,
178 struct pipe_query *q)
180 struct svga_context *svga = svga_context( pipe );
181 struct svga_query *sq = svga_query( q );
184 SVGA_DBG(DEBUG_QUERY, "%s\n", __FUNCTION__);
185 assert(svga->sq == sq);
187 svga_hwtnl_flush_retry(svga);
189 /* Set to PENDING before sending EndQuery. */
190 sq->queryResult->state = SVGA3D_QUERYSTATE_PENDING;
192 ret = SVGA3D_EndQuery( svga->swc, sq->type, sq->hwbuf);
194 svga_context_flush(svga, NULL);
195 ret = SVGA3D_EndQuery( svga->swc, sq->type, sq->hwbuf);
196 assert(ret == PIPE_OK);
199 /* TODO: Delay flushing. We don't really need to flush here, just ensure
200 * that there is one flush before svga_get_query_result attempts to get the
202 svga_context_flush(svga, NULL);
207 static boolean svga_get_query_result(struct pipe_context *pipe,
208 struct pipe_query *q,
212 struct svga_context *svga = svga_context( pipe );
213 struct svga_screen *svgascreen = svga_screen( pipe->screen );
214 struct svga_winsys_screen *sws = svgascreen->sws;
215 struct svga_query *sq = svga_query( q );
216 SVGA3dQueryState state;
218 SVGA_DBG(DEBUG_QUERY, "%s wait: %d\n", __FUNCTION__);
220 /* The query status won't be updated by the host unless
221 * SVGA_3D_CMD_WAIT_FOR_QUERY is emitted. Unfortunately this will cause a
222 * synchronous wait on the host */
226 ret = SVGA3D_WaitForQuery( svga->swc, sq->type, sq->hwbuf);
228 svga_context_flush(svga, NULL);
229 ret = SVGA3D_WaitForQuery( svga->swc, sq->type, sq->hwbuf);
230 assert(ret == PIPE_OK);
233 svga_context_flush(svga, &sq->fence);
238 state = sq->queryResult->state;
239 if(state == SVGA3D_QUERYSTATE_PENDING) {
243 sws->fence_finish(sws, sq->fence, 0);
245 state = sq->queryResult->state;
248 assert(state == SVGA3D_QUERYSTATE_SUCCEEDED ||
249 state == SVGA3D_QUERYSTATE_FAILED);
251 *result = (uint64_t)sq->queryResult->result32;
253 SVGA_DBG(DEBUG_QUERY, "%s result %d\n", __FUNCTION__, (unsigned)*result);
260 void svga_init_query_functions( struct svga_context *svga )
262 svga->pipe.create_query = svga_create_query;
263 svga->pipe.destroy_query = svga_destroy_query;
264 svga->pipe.begin_query = svga_begin_query;
265 svga->pipe.end_query = svga_end_query;
266 svga->pipe.get_query_result = svga_get_query_result;