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
, 0, 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
, 0, 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
;