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 };
  46
  47
  48 static struct softpipe_query *softpipe_query( struct pipe_query *p )
  49 {
  50    return (struct softpipe_query *)p;
  51 }
  52
  53 static struct pipe_query *
  54 softpipe_create_query(struct pipe_context *pipe,
  55                       unsigned type)
  56 {
  57    struct softpipe_query* sq;
  58
  59    assert(type == PIPE_QUERY_OCCLUSION_COUNTER ||
  60           type == PIPE_QUERY_TIME_ELAPSED ||
  61           type == PIPE_QUERY_SO_STATISTICS ||
  62           type == PIPE_QUERY_GPU_FINISHED ||
  63           type == PIPE_QUERY_TIMESTAMP_DISJOINT);
  64    sq = CALLOC_STRUCT( softpipe_query );
  65    sq->type = type;
  66
  67    return (struct pipe_query *)sq;
  68 }
  69
  70
  71 static void
  72 softpipe_destroy_query(struct pipe_context *pipe, struct pipe_query *q)
  73 {
  74    FREE(q);
  75 }
  76
  77
  78 static void
  79 softpipe_begin_query(struct pipe_context *pipe, struct pipe_query *q)
  80 {
  81    struct softpipe_context *softpipe = softpipe_context( pipe );
  82    struct softpipe_query *sq = softpipe_query(q);
  83
  84    switch (sq->type) {
  85    case PIPE_QUERY_OCCLUSION_COUNTER:
  86       sq->start = softpipe->occlusion_count;
  87       break;
  88    case PIPE_QUERY_TIME_ELAPSED:
  89       sq->start = 1000*os_time_get();
  90       break;
  91    case PIPE_QUERY_SO_STATISTICS:
  92       sq->so.num_primitives_written = 0;
  93       sq->so.primitives_storage_needed = 0;
  94       break;
  95    case PIPE_QUERY_GPU_FINISHED:
  96       break;
  97    case PIPE_QUERY_TIMESTAMP_DISJOINT:
  98    default:
  99       assert(0);
 100       break;
 101    }
 102    softpipe->active_query_count++;
 103    softpipe->dirty |= SP_NEW_QUERY;
 104 }
 105
 106
 107 static void
 108 softpipe_end_query(struct pipe_context *pipe, struct pipe_query *q)
 109 {
 110    struct softpipe_context *softpipe = softpipe_context( pipe );
 111    struct softpipe_query *sq = softpipe_query(q);
 112
 113    softpipe->active_query_count--;
 114    switch (sq->type) {
 115    case PIPE_QUERY_OCCLUSION_COUNTER:
 116       sq->end = softpipe->occlusion_count;
 117       break;
 118    case PIPE_QUERY_TIME_ELAPSED:
 119       sq->end = 1000*os_time_get();
 120       break;
 121    case PIPE_QUERY_SO_STATISTICS:
 122       sq->so.num_primitives_written =
 123          softpipe->so_stats.num_primitives_written;
 124       sq->so.primitives_storage_needed =
 125          softpipe->so_stats.primitives_storage_needed;
 126       break;
 127    case PIPE_QUERY_GPU_FINISHED:
 128    case PIPE_QUERY_TIMESTAMP_DISJOINT:
 129       break;
 130    default:
 131       assert(0);
 132       break;
 133    }
 134    softpipe->dirty |= SP_NEW_QUERY;
 135 }
 136
 137
 138 static boolean
 139 softpipe_get_query_result(struct pipe_context *pipe,
 140                           struct pipe_query *q,
 141                           boolean wait,
 142                           void *vresult)
 143 {
 144    struct softpipe_query *sq = softpipe_query(q);
 145    uint64_t *result = (uint64_t*)vresult;
 146
 147    switch (sq->type) {
 148    case PIPE_QUERY_SO_STATISTICS:
 149       memcpy(vresult, &sq->so,
 150              sizeof(struct pipe_query_data_so_statistics));
 151       break;
 152    case PIPE_QUERY_GPU_FINISHED:
 153       *result = TRUE;
 154       break;
 155    case PIPE_QUERY_TIMESTAMP_DISJOINT: {
 156       struct pipe_query_data_timestamp_disjoint td;
 157       /*os_get_time is in microseconds*/
 158       td.frequency = 1000000;
 159       td.disjoint = FALSE;
 160       memcpy(vresult, &sq->so,
 161              sizeof(struct pipe_query_data_timestamp_disjoint));
 162    }
 163       break;
 164    default:
 165       *result = sq->end - sq->start;
 166       break;
 167    }
 168    return TRUE;
 169 }
 170
 171
 172 /**
 173  * Called by rendering function to check rendering is conditional.
 174  * \return TRUE if we should render, FALSE if we should skip rendering
 175  */
 176 boolean
 177 softpipe_check_render_cond(struct softpipe_context *sp)
 178 {
 179    struct pipe_context *pipe = &sp->pipe;
 180    boolean b, wait;
 181    uint64_t result;
 182
 183    if (!sp->render_cond_query) {
 184       return TRUE;  /* no query predicate, draw normally */
 185    }
 186
 187    wait = (sp->render_cond_mode == PIPE_RENDER_COND_WAIT ||
 188            sp->render_cond_mode == PIPE_RENDER_COND_BY_REGION_WAIT);
 189
 190    b = pipe->get_query_result(pipe, sp->render_cond_query, wait, &result);
 191    if (b)
 192       return result > 0;
 193    else
 194       return TRUE;
 195 }
 196
 197
 198 void softpipe_init_query_funcs(struct softpipe_context *softpipe )
 199 {
 200    softpipe->pipe.create_query = softpipe_create_query;
 201    softpipe->pipe.destroy_query = softpipe_destroy_query;
 202    softpipe->pipe.begin_query = softpipe_begin_query;
 203    softpipe->pipe.end_query = softpipe_end_query;
 204    softpipe->pipe.get_query_result = softpipe_get_query_result;
 205 }
 206
 207