1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * Copyright 2010 VMware, Inc.
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 THE AUTHORS 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 **************************************************************************/
30 * Keith Whitwell, Qicheng Christopher Li, Brian Paul
33 #include "draw/draw_context.h"
34 #include "pipe/p_defines.h"
35 #include "util/u_memory.h"
36 #include "lp_context.h"
43 static struct llvmpipe_query *llvmpipe_query( struct pipe_query *p )
45 return (struct llvmpipe_query *)p;
48 static struct pipe_query *
49 llvmpipe_create_query(struct pipe_context *pipe,
52 struct llvmpipe_query *pq;
54 assert(type == PIPE_QUERY_OCCLUSION_COUNTER);
56 pq = CALLOC_STRUCT( llvmpipe_query );
58 return (struct pipe_query *) pq;
63 llvmpipe_destroy_query(struct pipe_context *pipe, struct pipe_query *q)
65 struct llvmpipe_query *pq = llvmpipe_query(q);
67 /* Ideally we would refcount queries & not get destroyed until the
68 * last scene had finished with us.
71 if (!lp_fence_issued(pq->fence))
72 llvmpipe_flush(pipe, NULL, __FUNCTION__);
74 if (!lp_fence_signalled(pq->fence))
75 lp_fence_wait(pq->fence);
77 lp_fence_reference(&pq->fence, NULL);
85 llvmpipe_get_query_result(struct pipe_context *pipe,
90 struct llvmpipe_query *pq = llvmpipe_query(q);
91 uint64_t *result = (uint64_t *)vresult;
95 /* no fence because there was no scene, so results is zero */
100 if (!lp_fence_signalled(pq->fence)) {
101 if (!lp_fence_issued(pq->fence))
102 llvmpipe_flush(pipe, NULL, __FUNCTION__);
107 lp_fence_wait(pq->fence);
110 /* Sum the results from each of the threads:
113 for (i = 0; i < LP_MAX_THREADS; i++) {
114 *result += pq->count[i];
122 llvmpipe_begin_query(struct pipe_context *pipe, struct pipe_query *q)
124 struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
125 struct llvmpipe_query *pq = llvmpipe_query(q);
127 /* Check if the query is already in the scene. If so, we need to
128 * flush the scene now. Real apps shouldn't re-use a query in a
129 * frame of rendering.
131 if (pq->fence && !lp_fence_issued(pq->fence)) {
132 llvmpipe_finish(pipe, __FUNCTION__);
136 memset(pq->count, 0, sizeof(pq->count));
137 lp_setup_begin_query(llvmpipe->setup, pq);
139 llvmpipe->active_query_count++;
140 llvmpipe->dirty |= LP_NEW_QUERY;
145 llvmpipe_end_query(struct pipe_context *pipe, struct pipe_query *q)
147 struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
148 struct llvmpipe_query *pq = llvmpipe_query(q);
150 lp_setup_end_query(llvmpipe->setup, pq);
152 assert(llvmpipe->active_query_count);
153 llvmpipe->active_query_count--;
154 llvmpipe->dirty |= LP_NEW_QUERY;
158 void llvmpipe_init_query_funcs(struct llvmpipe_context *llvmpipe )
160 llvmpipe->pipe.create_query = llvmpipe_create_query;
161 llvmpipe->pipe.destroy_query = llvmpipe_destroy_query;
162 llvmpipe->pipe.begin_query = llvmpipe_begin_query;
163 llvmpipe->pipe.end_query = llvmpipe_end_query;
164 llvmpipe->pipe.get_query_result = llvmpipe_get_query_result;