1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * glBegin/EndQuery interface to pipe
36 #include "main/imports.h"
37 #include "main/context.h"
39 #include "pipe/p_context.h"
40 #include "pipe/p_defines.h"
41 #include "pipe/p_screen.h"
42 #include "st_context.h"
43 #include "st_cb_queryobj.h"
44 #include "st_cb_bitmap.h"
47 static struct gl_query_object
*
48 st_NewQueryObject(struct gl_context
*ctx
, GLuint id
)
50 struct st_query_object
*stq
= ST_CALLOC_STRUCT(st_query_object
);
53 stq
->base
.Ready
= GL_TRUE
;
55 stq
->type
= PIPE_QUERY_TYPES
; /* an invalid value */
64 st_DeleteQuery(struct gl_context
*ctx
, struct gl_query_object
*q
)
66 struct pipe_context
*pipe
= st_context(ctx
)->pipe
;
67 struct st_query_object
*stq
= st_query_object(q
);
70 pipe
->destroy_query(pipe
, stq
->pq
);
75 pipe
->destroy_query(pipe
, stq
->pq_begin
);
84 st_BeginQuery(struct gl_context
*ctx
, struct gl_query_object
*q
)
86 struct st_context
*st
= st_context(ctx
);
87 struct pipe_context
*pipe
= st
->pipe
;
88 struct st_query_object
*stq
= st_query_object(q
);
91 st_flush_bitmap_cache(st_context(ctx
));
93 /* convert GL query type to Gallium query type */
95 case GL_ANY_SAMPLES_PASSED
:
96 case GL_ANY_SAMPLES_PASSED_CONSERVATIVE
:
98 case GL_SAMPLES_PASSED_ARB
:
99 type
= PIPE_QUERY_OCCLUSION_COUNTER
;
101 case GL_PRIMITIVES_GENERATED
:
102 type
= PIPE_QUERY_PRIMITIVES_GENERATED
;
104 case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN
:
105 type
= PIPE_QUERY_PRIMITIVES_EMITTED
;
107 case GL_TIME_ELAPSED
:
108 if (st
->has_time_elapsed
)
109 type
= PIPE_QUERY_TIME_ELAPSED
;
111 type
= PIPE_QUERY_TIMESTAMP
;
114 assert(0 && "unexpected query target in st_BeginQuery()");
118 if (stq
->type
!= type
) {
119 /* free old query of different type */
121 pipe
->destroy_query(pipe
, stq
->pq
);
125 pipe
->destroy_query(pipe
, stq
->pq_begin
);
126 stq
->pq_begin
= NULL
;
128 stq
->type
= PIPE_QUERY_TYPES
; /* an invalid value */
131 if (q
->Target
== GL_TIME_ELAPSED
&&
132 type
== PIPE_QUERY_TIMESTAMP
) {
133 /* Determine time elapsed by emitting two timestamp queries. */
134 if (!stq
->pq_begin
) {
135 stq
->pq_begin
= pipe
->create_query(pipe
, type
, 0);
138 pipe
->end_query(pipe
, stq
->pq_begin
);
141 stq
->pq
= pipe
->create_query(pipe
, type
, 0);
145 pipe
->begin_query(pipe
, stq
->pq
);
148 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBeginQuery");
152 assert(stq
->type
== type
);
157 st_EndQuery(struct gl_context
*ctx
, struct gl_query_object
*q
)
159 struct pipe_context
*pipe
= st_context(ctx
)->pipe
;
160 struct st_query_object
*stq
= st_query_object(q
);
162 st_flush_bitmap_cache(st_context(ctx
));
164 if ((q
->Target
== GL_TIMESTAMP
||
165 q
->Target
== GL_TIME_ELAPSED
) &&
167 stq
->pq
= pipe
->create_query(pipe
, PIPE_QUERY_TIMESTAMP
, 0);
168 stq
->type
= PIPE_QUERY_TIMESTAMP
;
172 pipe
->end_query(pipe
, stq
->pq
);
177 get_query_result(struct pipe_context
*pipe
,
178 struct st_query_object
*stq
,
182 /* Only needed in case we failed to allocate the gallium query earlier.
183 * Return TRUE so we don't spin on this forever.
188 if (!pipe
->get_query_result(pipe
,
191 (void *)&stq
->base
.Result
)) {
195 if (stq
->base
.Target
== GL_TIME_ELAPSED
&&
196 stq
->type
== PIPE_QUERY_TIMESTAMP
) {
197 /* Calculate the elapsed time from the two timestamp queries */
198 GLuint64EXT Result0
= 0;
199 assert(stq
->pq_begin
);
200 pipe
->get_query_result(pipe
, stq
->pq_begin
, TRUE
, (void *)&Result0
);
201 stq
->base
.Result
-= Result0
;
203 assert(!stq
->pq_begin
);
211 st_WaitQuery(struct gl_context
*ctx
, struct gl_query_object
*q
)
213 struct pipe_context
*pipe
= st_context(ctx
)->pipe
;
214 struct st_query_object
*stq
= st_query_object(q
);
216 /* this function should only be called if we don't have a ready result */
217 assert(!stq
->base
.Ready
);
219 while (!stq
->base
.Ready
&&
220 !get_query_result(pipe
, stq
, TRUE
))
230 st_CheckQuery(struct gl_context
*ctx
, struct gl_query_object
*q
)
232 struct pipe_context
*pipe
= st_context(ctx
)->pipe
;
233 struct st_query_object
*stq
= st_query_object(q
);
234 assert(!q
->Ready
); /* we should not get called if Ready is TRUE */
235 q
->Ready
= get_query_result(pipe
, stq
, FALSE
);
240 st_GetTimestamp(struct gl_context
*ctx
)
242 struct pipe_screen
*screen
= st_context(ctx
)->pipe
->screen
;
244 return screen
->get_timestamp(screen
);
248 void st_init_query_functions(struct dd_function_table
*functions
)
250 functions
->NewQueryObject
= st_NewQueryObject
;
251 functions
->DeleteQuery
= st_DeleteQuery
;
252 functions
->BeginQuery
= st_BeginQuery
;
253 functions
->EndQuery
= st_EndQuery
;
254 functions
->WaitQuery
= st_WaitQuery
;
255 functions
->CheckQuery
= st_CheckQuery
;
256 functions
->GetTimestamp
= st_GetTimestamp
;