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_resource_buffer.h"
34 #include "svga_winsys.h"
35 #include "svga_debug.h"
38 /* Fixme: want a public base class for all pipe structs, even if there
46 struct pipe_query base
;
48 struct svga_winsys_buffer
*hwbuf
;
49 volatile SVGA3dQueryResult
*queryResult
;
50 struct pipe_fence_handle
*fence
;
53 /***********************************************************************
54 * Inline conversion functions. These are better-typed than the
55 * macros used previously:
57 static INLINE
struct svga_query
*
58 svga_query( struct pipe_query
*q
)
60 return (struct svga_query
*)q
;
63 static boolean
svga_get_query_result(struct pipe_context
*pipe
,
68 static struct pipe_query
*svga_create_query( struct pipe_context
*pipe
,
71 struct svga_screen
*svgascreen
= svga_screen(pipe
->screen
);
72 struct svga_winsys_screen
*sws
= svgascreen
->sws
;
73 struct svga_query
*sq
;
75 SVGA_DBG(DEBUG_QUERY
, "%s\n", __FUNCTION__
);
77 sq
= CALLOC_STRUCT(svga_query
);
81 sq
->type
= SVGA3D_QUERYTYPE_OCCLUSION
;
83 sq
->hwbuf
= svga_winsys_buffer_create(svgascreen
,
85 SVGA_BUFFER_USAGE_PINNED
,
86 sizeof *sq
->queryResult
);
90 sq
->queryResult
= (SVGA3dQueryResult
*)sws
->buffer_map(sws
,
96 sq
->queryResult
->totalSize
= sizeof *sq
->queryResult
;
97 sq
->queryResult
->state
= SVGA3D_QUERYSTATE_NEW
;
100 * We request the buffer to be pinned and assume it is always mapped.
102 * The reason is that we don't want to wait for fences when checking the
105 sws
->buffer_unmap(sws
, sq
->hwbuf
);
110 sws
->buffer_destroy(sws
, sq
->hwbuf
);
117 static void svga_destroy_query(struct pipe_context
*pipe
,
118 struct pipe_query
*q
)
120 struct svga_screen
*svgascreen
= svga_screen(pipe
->screen
);
121 struct svga_winsys_screen
*sws
= svgascreen
->sws
;
122 struct svga_query
*sq
= svga_query( q
);
124 SVGA_DBG(DEBUG_QUERY
, "%s\n", __FUNCTION__
);
125 sws
->buffer_destroy(sws
, sq
->hwbuf
);
126 sws
->fence_reference(sws
, &sq
->fence
, NULL
);
130 static void svga_begin_query(struct pipe_context
*pipe
,
131 struct pipe_query
*q
)
133 struct svga_screen
*svgascreen
= svga_screen(pipe
->screen
);
134 struct svga_winsys_screen
*sws
= svgascreen
->sws
;
135 struct svga_context
*svga
= svga_context( pipe
);
136 struct svga_query
*sq
= svga_query( q
);
139 SVGA_DBG(DEBUG_QUERY
, "%s\n", __FUNCTION__
);
143 /* Need to flush out buffered drawing commands so that they don't
144 * get counted in the query results.
146 svga_hwtnl_flush_retry(svga
);
148 if(sq
->queryResult
->state
== SVGA3D_QUERYSTATE_PENDING
) {
149 /* The application doesn't care for the pending query result. We cannot
150 * let go the existing buffer and just get a new one because its storage
151 * may be reused for other purposes and clobbered by the host when it
152 * determines the query result. So the only option here is to wait for
153 * the existing query's result -- not a big deal, given that no sane
154 * application would do this.
158 svga_get_query_result(pipe
, q
, TRUE
, &result
);
160 assert(sq
->queryResult
->state
!= SVGA3D_QUERYSTATE_PENDING
);
163 sq
->queryResult
->state
= SVGA3D_QUERYSTATE_NEW
;
164 sws
->fence_reference(sws
, &sq
->fence
, NULL
);
166 ret
= SVGA3D_BeginQuery(svga
->swc
, sq
->type
);
168 svga_context_flush(svga
, NULL
);
169 ret
= SVGA3D_BeginQuery(svga
->swc
, sq
->type
);
170 assert(ret
== PIPE_OK
);
176 static void svga_end_query(struct pipe_context
*pipe
,
177 struct pipe_query
*q
)
179 struct svga_context
*svga
= svga_context( pipe
);
180 struct svga_query
*sq
= svga_query( q
);
183 SVGA_DBG(DEBUG_QUERY
, "%s\n", __FUNCTION__
);
184 assert(svga
->sq
== sq
);
186 svga_hwtnl_flush_retry(svga
);
188 /* Set to PENDING before sending EndQuery. */
189 sq
->queryResult
->state
= SVGA3D_QUERYSTATE_PENDING
;
191 ret
= SVGA3D_EndQuery( svga
->swc
, sq
->type
, sq
->hwbuf
);
193 svga_context_flush(svga
, NULL
);
194 ret
= SVGA3D_EndQuery( svga
->swc
, sq
->type
, sq
->hwbuf
);
195 assert(ret
== PIPE_OK
);
198 /* TODO: Delay flushing. We don't really need to flush here, just ensure
199 * that there is one flush before svga_get_query_result attempts to get the
201 svga_context_flush(svga
, NULL
);
206 static boolean
svga_get_query_result(struct pipe_context
*pipe
,
207 struct pipe_query
*q
,
211 struct svga_context
*svga
= svga_context( pipe
);
212 struct svga_screen
*svgascreen
= svga_screen( pipe
->screen
);
213 struct svga_winsys_screen
*sws
= svgascreen
->sws
;
214 struct svga_query
*sq
= svga_query( q
);
215 SVGA3dQueryState state
;
217 SVGA_DBG(DEBUG_QUERY
, "%s wait: %d\n", __FUNCTION__
);
219 /* The query status won't be updated by the host unless
220 * SVGA_3D_CMD_WAIT_FOR_QUERY is emitted. Unfortunately this will cause a
221 * synchronous wait on the host */
225 ret
= SVGA3D_WaitForQuery( svga
->swc
, sq
->type
, sq
->hwbuf
);
227 svga_context_flush(svga
, NULL
);
228 ret
= SVGA3D_WaitForQuery( svga
->swc
, sq
->type
, sq
->hwbuf
);
229 assert(ret
== PIPE_OK
);
232 svga_context_flush(svga
, &sq
->fence
);
237 state
= sq
->queryResult
->state
;
238 if(state
== SVGA3D_QUERYSTATE_PENDING
) {
242 sws
->fence_finish(sws
, sq
->fence
, 0);
244 state
= sq
->queryResult
->state
;
247 assert(state
== SVGA3D_QUERYSTATE_SUCCEEDED
||
248 state
== SVGA3D_QUERYSTATE_FAILED
);
250 *result
= (uint64_t)sq
->queryResult
->result32
;
252 SVGA_DBG(DEBUG_QUERY
, "%s result %d\n", __FUNCTION__
, (unsigned)*result
);
259 void svga_init_query_functions( struct svga_context
*svga
)
261 svga
->pipe
.create_query
= svga_create_query
;
262 svga
->pipe
.destroy_query
= svga_destroy_query
;
263 svga
->pipe
.begin_query
= svga_begin_query
;
264 svga
->pipe
.end_query
= svga_end_query
;
265 svga
->pipe
.get_query_result
= svga_get_query_result
;