1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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 TUNGSTEN GRAPHICS 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"
38 #include "main/image.h"
40 #include "pipe/p_context.h"
41 #include "pipe/p_defines.h"
42 #include "st_context.h"
43 #include "st_cb_queryobj.h"
44 #include "st_public.h"
47 struct st_query_object
49 struct gl_query_object base
;
50 struct pipe_query_object pq
;
57 static struct st_query_object
*
58 st_query_object(struct gl_query_object
*q
)
60 return (struct st_query_object
*) q
;
64 static struct gl_query_object
*
65 st_NewQueryObject(GLcontext
*ctx
, GLuint id
)
67 struct st_query_object
*stq
= CALLOC_STRUCT(st_query_object
);
70 stq
->base
.Ready
= GL_TRUE
;
78 * Do glReadPixels by getting rows from the framebuffer surface with
79 * get_tile(). Convert to requested format/type with Mesa image routines.
80 * Image transfer ops are done in software too.
83 st_BeginQuery(GLcontext
*ctx
, struct gl_query_object
*q
)
85 struct pipe_context
*pipe
= ctx
->st
->pipe
;
86 struct st_query_object
*stq
= st_query_object(q
);
91 case GL_SAMPLES_PASSED_ARB
:
92 stq
->pq
.type
= PIPE_QUERY_OCCLUSION_COUNTER
;
94 case GL_PRIMITIVES_GENERATED_NV
:
96 stq
->pq
.type
= PIPE_QUERY_PRIMITIVES_GENERATED
;
98 case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_NV
:
100 stq
->pq
.type
= PIPE_QUERY_PRIMITIVES_EMITTED
;
106 pipe
->begin_query(pipe
, &stq
->pq
);
111 st_EndQuery(GLcontext
*ctx
, struct gl_query_object
*q
)
113 struct pipe_context
*pipe
= ctx
->st
->pipe
;
114 struct st_query_object
*stq
= st_query_object(q
);
116 pipe
->end_query(pipe
, &stq
->pq
);
117 stq
->base
.Ready
= stq
->pq
.ready
;
119 stq
->base
.Result
= stq
->pq
.count
;
124 st_WaitQuery(GLcontext
*ctx
, struct gl_query_object
*q
)
126 struct pipe_context
*pipe
= ctx
->st
->pipe
;
127 struct st_query_object
*stq
= st_query_object(q
);
129 /* this function should only be called if we don't have a ready result */
130 assert(!stq
->base
.Ready
);
132 pipe
->wait_query(pipe
, &stq
->pq
);
134 q
->Result
= stq
->pq
.count
;
139 void st_init_query_functions(struct dd_function_table
*functions
)
141 functions
->NewQueryObject
= st_NewQueryObject
;
142 functions
->BeginQuery
= st_BeginQuery
;
143 functions
->EndQuery
= st_EndQuery
;
144 functions
->WaitQuery
= st_WaitQuery
;