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);
138 pipe->end_query(pipe, stq->pq_begin);
141 stq->pq = pipe->create_query(pipe, type);
144 pipe->begin_query(pipe, stq->pq);
146 assert(stq->type == type);
151 st_EndQuery(struct gl_context *ctx, struct gl_query_object *q)
153 struct pipe_context *pipe = st_context(ctx)->pipe;
154 struct st_query_object *stq = st_query_object(q);
156 st_flush_bitmap_cache(st_context(ctx));
158 if ((q->Target == GL_TIMESTAMP ||
159 q->Target == GL_TIME_ELAPSED) &&
161 stq->pq = pipe->create_query(pipe, PIPE_QUERY_TIMESTAMP);
162 stq->type = PIPE_QUERY_TIMESTAMP;
165 pipe->end_query(pipe, stq->pq);
170 get_query_result(struct pipe_context *pipe,
171 struct st_query_object *stq,
174 if (!pipe->get_query_result(pipe,
177 (void *)&stq->base.Result)) {
181 if (stq->base.Target == GL_TIME_ELAPSED &&
182 stq->type == PIPE_QUERY_TIMESTAMP) {
183 /* Calculate the elapsed time from the two timestamp queries */
184 GLuint64EXT Result0 = 0;
185 assert(stq->pq_begin);
186 pipe->get_query_result(pipe, stq->pq_begin, TRUE, (void *)&Result0);
187 stq->base.Result -= Result0;
189 assert(!stq->pq_begin);
197 st_WaitQuery(struct gl_context *ctx, struct gl_query_object *q)
199 struct pipe_context *pipe = st_context(ctx)->pipe;
200 struct st_query_object *stq = st_query_object(q);
202 /* this function should only be called if we don't have a ready result */
203 assert(!stq->base.Ready);
205 while (!stq->base.Ready &&
206 !get_query_result(pipe, stq, TRUE))
216 st_CheckQuery(struct gl_context *ctx, struct gl_query_object *q)
218 struct pipe_context *pipe = st_context(ctx)->pipe;
219 struct st_query_object *stq = st_query_object(q);
220 assert(!q->Ready); /* we should not get called if Ready is TRUE */
221 q->Ready = get_query_result(pipe, stq, FALSE);
226 st_GetTimestamp(struct gl_context *ctx)
228 struct pipe_screen *screen = st_context(ctx)->pipe->screen;
230 return screen->get_timestamp(screen);
234 void st_init_query_functions(struct dd_function_table *functions)
236 functions->NewQueryObject = st_NewQueryObject;
237 functions->DeleteQuery = st_DeleteQuery;
238 functions->BeginQuery = st_BeginQuery;
239 functions->EndQuery = st_EndQuery;
240 functions->WaitQuery = st_WaitQuery;
241 functions->CheckQuery = st_CheckQuery;
242 functions->GetTimestamp = st_GetTimestamp;