1 /**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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.
25 *
26 **************************************************************************/
27
28
29 /**
30 * glBegin/EndQuery interface to pipe
31 *
32 * \author Brian Paul
33 */
34
35
36 #include "main/imports.h"
37 #include "main/context.h"
38 #include "main/mfeatures.h"
39
40 #include "pipe/p_context.h"
41 #include "pipe/p_defines.h"
42 #include "pipe/p_screen.h"
43 #include "st_context.h"
44 #include "st_cb_queryobj.h"
45 #include "st_cb_bitmap.h"
46
47
48 #if FEATURE_queryobj
49
50 static struct gl_query_object *
st_NewQueryObject(struct gl_context * ctx,GLuint id)51 st_NewQueryObject(struct gl_context *ctx, GLuint id)
52 {
53 struct st_query_object *stq = ST_CALLOC_STRUCT(st_query_object);
54 if (stq) {
55 stq->base.Id = id;
56 stq->base.Ready = GL_TRUE;
57 stq->pq = NULL;
58 stq->type = PIPE_QUERY_TYPES; /* an invalid value */
59 return &stq->base;
60 }
61 return NULL;
62 }
63
64
65
66 static void
st_DeleteQuery(struct gl_context * ctx,struct gl_query_object * q)67 st_DeleteQuery(struct gl_context *ctx, struct gl_query_object *q)
68 {
69 struct pipe_context *pipe = st_context(ctx)->pipe;
70 struct st_query_object *stq = st_query_object(q);
71
72 if (stq->pq) {
73 pipe->destroy_query(pipe, stq->pq);
74 stq->pq = NULL;
75 }
76
77 free(stq);
78 }
79
80
81 static void
st_BeginQuery(struct gl_context * ctx,struct gl_query_object * q)82 st_BeginQuery(struct gl_context *ctx, struct gl_query_object *q)
83 {
84 struct pipe_context *pipe = st_context(ctx)->pipe;
85 struct st_query_object *stq = st_query_object(q);
86 unsigned type;
87
88 st_flush_bitmap_cache(st_context(ctx));
89
90 /* convert GL query type to Gallium query type */
91 switch (q->Target) {
92 case GL_ANY_SAMPLES_PASSED:
93 /* fall-through */
94 case GL_SAMPLES_PASSED_ARB:
95 type = PIPE_QUERY_OCCLUSION_COUNTER;
96 break;
97 case GL_PRIMITIVES_GENERATED:
98 type = PIPE_QUERY_PRIMITIVES_GENERATED;
99 break;
100 case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
101 type = PIPE_QUERY_PRIMITIVES_EMITTED;
102 break;
103 case GL_TIME_ELAPSED_EXT:
104 type = PIPE_QUERY_TIME_ELAPSED;
105 break;
106 default:
107 assert(0 && "unexpected query target in st_BeginQuery()");
108 return;
109 }
110
111 if (stq->pq && stq->type != type) {
112 /* free old query of different type */
113 pipe->destroy_query(pipe, stq->pq);
114 stq->pq = NULL;
115 stq->type = PIPE_QUERY_TYPES; /* an invalid value */
116 }
117
118 if (!stq->pq) {
119 stq->pq = pipe->create_query(pipe, type);
120 stq->type = type;
121 }
122
123 assert(stq->type == type);
124
125 pipe->begin_query(pipe, stq->pq);
126 }
127
128
129 static void
st_EndQuery(struct gl_context * ctx,struct gl_query_object * q)130 st_EndQuery(struct gl_context *ctx, struct gl_query_object *q)
131 {
132 struct pipe_context *pipe = st_context(ctx)->pipe;
133 struct st_query_object *stq = st_query_object(q);
134
135 st_flush_bitmap_cache(st_context(ctx));
136
137 if (q->Target == GL_TIMESTAMP && !stq->pq) {
138 stq->pq = pipe->create_query(pipe, PIPE_QUERY_TIMESTAMP);
139 stq->type = PIPE_QUERY_TIMESTAMP;
140 }
141
142 pipe->end_query(pipe, stq->pq);
143 }
144
145
146 static void
st_WaitQuery(struct gl_context * ctx,struct gl_query_object * q)147 st_WaitQuery(struct gl_context *ctx, struct gl_query_object *q)
148 {
149 struct pipe_context *pipe = st_context(ctx)->pipe;
150 struct st_query_object *stq = st_query_object(q);
151
152 /* this function should only be called if we don't have a ready result */
153 assert(!stq->base.Ready);
154
155 while (!stq->base.Ready &&
156 !pipe->get_query_result(pipe,
157 stq->pq,
158 TRUE,
159 (void*)&q->Result))
160 {
161 /* nothing */
162 }
163
164 q->Ready = GL_TRUE;
165 }
166
167
168 static void
st_CheckQuery(struct gl_context * ctx,struct gl_query_object * q)169 st_CheckQuery(struct gl_context *ctx, struct gl_query_object *q)
170 {
171 struct pipe_context *pipe = st_context(ctx)->pipe;
172 struct st_query_object *stq = st_query_object(q);
173 assert(!q->Ready); /* we should not get called if Ready is TRUE */
174 q->Ready = pipe->get_query_result(pipe, stq->pq, FALSE, (void*)&q->Result);
175 }
176
177
178 static uint64_t
st_GetTimestamp(struct gl_context * ctx)179 st_GetTimestamp(struct gl_context *ctx)
180 {
181 struct pipe_screen *screen = st_context(ctx)->pipe->screen;
182
183 return screen->get_timestamp(screen);
184 }
185
186
st_init_query_functions(struct dd_function_table * functions)187 void st_init_query_functions(struct dd_function_table *functions)
188 {
189 functions->NewQueryObject = st_NewQueryObject;
190 functions->DeleteQuery = st_DeleteQuery;
191 functions->BeginQuery = st_BeginQuery;
192 functions->EndQuery = st_EndQuery;
193 functions->WaitQuery = st_WaitQuery;
194 functions->CheckQuery = st_CheckQuery;
195 functions->GetTimestamp = st_GetTimestamp;
196 }
197
198 #endif /* FEATURE_queryobj */
199