src/mesa/state_tracker/st_cb_queryobj.c

   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
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  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 *
  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
  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
  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
 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
 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
 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
 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
 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 */