reactos/dll/opengl/mesa/src/gallium/drivers/softpipe/sp_query.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
  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 /* Author:
  29  *    Keith Whitwell <keith@tungstengraphics.com>
  30  */
  31
  32 #include "draw/draw_context.h"
  33 #include "os/os_time.h"
  34 #include "pipe/p_defines.h"
  35 #include "util/u_memory.h"
  36 #include "sp_context.h"
  37 #include "sp_query.h"
  38 #include "sp_state.h"
  39
  40 struct softpipe_query {
  41    unsigned type;
  42    uint64_t start;
  43    uint64_t end;
  44    struct pipe_query_data_so_statistics so;
  45    unsigned num_primitives_generated;
  46 };
  47
  48
  49 static struct softpipe_query *softpipe_query( struct pipe_query *p )
  50 {
  51    return (struct softpipe_query *)p;
  52 }
  53
  54 static struct pipe_query *
  55 softpipe_create_query(struct pipe_context *pipe,
  56                       unsigned type)
  57 {
  58    struct softpipe_query* sq;
  59
  60    assert(type == PIPE_QUERY_OCCLUSION_COUNTER ||
  61           type == PIPE_QUERY_TIME_ELAPSED ||
  62           type == PIPE_QUERY_SO_STATISTICS ||
  63           type == PIPE_QUERY_PRIMITIVES_EMITTED ||
  64           type == PIPE_QUERY_PRIMITIVES_GENERATED ||
  65           type == PIPE_QUERY_GPU_FINISHED ||
  66           type == PIPE_QUERY_TIMESTAMP ||
  67           type == PIPE_QUERY_TIMESTAMP_DISJOINT);
  68    sq = CALLOC_STRUCT( softpipe_query );
  69    sq->type = type;
  70
  71    return (struct pipe_query *)sq;
  72 }
  73
  74
  75 static void
  76 softpipe_destroy_query(struct pipe_context *pipe, struct pipe_query *q)
  77 {
  78    FREE(q);
  79 }
  80
  81
  82 static void
  83 softpipe_begin_query(struct pipe_context *pipe, struct pipe_query *q)
  84 {
  85    struct softpipe_context *softpipe = softpipe_context( pipe );
  86    struct softpipe_query *sq = softpipe_query(q);
  87
  88    switch (sq->type) {
  89    case PIPE_QUERY_OCCLUSION_COUNTER:
  90       sq->start = softpipe->occlusion_count;
  91       break;
  92    case PIPE_QUERY_TIMESTAMP_DISJOINT:
  93    case PIPE_QUERY_TIME_ELAPSED:
  94       sq->start = 1000*os_time_get();
  95       break;
  96    case PIPE_QUERY_SO_STATISTICS:
  97       sq->so.primitives_storage_needed = 0;
  98    case PIPE_QUERY_PRIMITIVES_EMITTED:
  99       sq->so.num_primitives_written = 0;
 100       softpipe->so_stats.num_primitives_written = 0;
 101       break;
 102    case PIPE_QUERY_PRIMITIVES_GENERATED:
 103       sq->num_primitives_generated = 0;
 104       softpipe->num_primitives_generated = 0;
 105       break;
 106    case PIPE_QUERY_TIMESTAMP:
 107    case PIPE_QUERY_GPU_FINISHED:
 108       break;
 109    default:
 110       assert(0);
 111       break;
 112    }
 113    softpipe->active_query_count++;
 114    softpipe->dirty |= SP_NEW_QUERY;
 115 }
 116
 117
 118 static void
 119 softpipe_end_query(struct pipe_context *pipe, struct pipe_query *q)
 120 {
 121    struct softpipe_context *softpipe = softpipe_context( pipe );
 122    struct softpipe_query *sq = softpipe_query(q);
 123
 124    softpipe->active_query_count--;
 125    switch (sq->type) {
 126    case PIPE_QUERY_OCCLUSION_COUNTER:
 127       sq->end = softpipe->occlusion_count;
 128       break;
 129    case PIPE_QUERY_TIMESTAMP:
 130       sq->start = 0;
 131       /* fall through */
 132    case PIPE_QUERY_TIMESTAMP_DISJOINT:
 133    case PIPE_QUERY_TIME_ELAPSED:
 134       sq->end = 1000*os_time_get();
 135       break;
 136    case PIPE_QUERY_SO_STATISTICS:
 137       sq->so.primitives_storage_needed =
 138          softpipe->so_stats.primitives_storage_needed;
 139    case PIPE_QUERY_PRIMITIVES_EMITTED:
 140       sq->so.num_primitives_written =
 141          softpipe->so_stats.num_primitives_written;
 142       break;
 143    case PIPE_QUERY_PRIMITIVES_GENERATED:
 144       sq->num_primitives_generated = softpipe->num_primitives_generated;
 145       break;
 146    case PIPE_QUERY_GPU_FINISHED:
 147       break;
 148    default:
 149       assert(0);
 150       break;
 151    }
 152    softpipe->dirty |= SP_NEW_QUERY;
 153 }
 154
 155
 156 static boolean
 157 softpipe_get_query_result(struct pipe_context *pipe,
 158                           struct pipe_query *q,
 159                           boolean wait,
 160                           void *vresult)
 161 {
 162    struct softpipe_query *sq = softpipe_query(q);
 163    uint64_t *result = (uint64_t*)vresult;
 164
 165    switch (sq->type) {
 166    case PIPE_QUERY_SO_STATISTICS:
 167       memcpy(vresult, &sq->so,
 168              sizeof(struct pipe_query_data_so_statistics));
 169       break;
 170    case PIPE_QUERY_GPU_FINISHED:
 171       *result = TRUE;
 172       break;
 173    case PIPE_QUERY_TIMESTAMP_DISJOINT: {
 174       struct pipe_query_data_timestamp_disjoint td;
 175       /*os_get_time is in microseconds*/
 176       td.frequency = 1000000;
 177       td.disjoint = sq->end != sq->start;
 178       memcpy(vresult, &td,
 179              sizeof(struct pipe_query_data_timestamp_disjoint));
 180    }
 181       break;
 182    case PIPE_QUERY_PRIMITIVES_EMITTED:
 183       *result = sq->so.num_primitives_written;
 184       break;
 185    case PIPE_QUERY_PRIMITIVES_GENERATED:
 186       *result = sq->num_primitives_generated;
 187       break;
 188    default:
 189       *result = sq->end - sq->start;
 190       break;
 191    }
 192    return TRUE;
 193 }
 194
 195
 196 /**
 197  * Called by rendering function to check rendering is conditional.
 198  * \return TRUE if we should render, FALSE if we should skip rendering
 199  */
 200 boolean
 201 softpipe_check_render_cond(struct softpipe_context *sp)
 202 {
 203    struct pipe_context *pipe = &sp->pipe;
 204    boolean b, wait;
 205    uint64_t result;
 206
 207    if (!sp->render_cond_query) {
 208       return TRUE;  /* no query predicate, draw normally */
 209    }
 210
 211    wait = (sp->render_cond_mode == PIPE_RENDER_COND_WAIT ||
 212            sp->render_cond_mode == PIPE_RENDER_COND_BY_REGION_WAIT);
 213
 214    b = pipe->get_query_result(pipe, sp->render_cond_query, wait, &result);
 215    if (b)
 216       return result > 0;
 217    else
 218       return TRUE;
 219 }
 220
 221
 222 void softpipe_init_query_funcs(struct softpipe_context *softpipe )
 223 {
 224    softpipe->pipe.create_query = softpipe_create_query;
 225    softpipe->pipe.destroy_query = softpipe_destroy_query;
 226    softpipe->pipe.begin_query = softpipe_begin_query;
 227    softpipe->pipe.end_query = softpipe_end_query;
 228    softpipe->pipe.get_query_result = softpipe_get_query_result;
 229 }
 230
 231