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
;