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    struct pipe_query_data_pipeline_statistics stats;
  48 };
  49
  50
  51 static struct softpipe_query *softpipe_query( struct pipe_query *p )
  52 {
  53    return (struct softpipe_query *)p;
  54 }
  55
  56 static struct pipe_query *
  57 softpipe_create_query(struct pipe_context *pipe,
  58                       unsigned type)
  59 {
  60    struct softpipe_query* sq;
  61
  62    assert(type == PIPE_QUERY_OCCLUSION_COUNTER ||
  63           type == PIPE_QUERY_OCCLUSION_PREDICATE ||
  64           type == PIPE_QUERY_TIME_ELAPSED ||
  65           type == PIPE_QUERY_SO_STATISTICS ||
  66           type == PIPE_QUERY_SO_OVERFLOW_PREDICATE ||
  67           type == PIPE_QUERY_PRIMITIVES_EMITTED ||
  68           type == PIPE_QUERY_PRIMITIVES_GENERATED ||
  69           type == PIPE_QUERY_PIPELINE_STATISTICS ||
  70           type == PIPE_QUERY_GPU_FINISHED ||
  71           type == PIPE_QUERY_TIMESTAMP ||
  72           type == PIPE_QUERY_TIMESTAMP_DISJOINT);
  73    sq = CALLOC_STRUCT( softpipe_query );
  74    sq->type = type;
  75
  76    return (struct pipe_query *)sq;
  77 }
  78
  79
  80 static void
  81 softpipe_destroy_query(struct pipe_context *pipe, struct pipe_query *q)
  82 {
  83    FREE(q);
  84 }
  85
  86
  87 static void
  88 softpipe_begin_query(struct pipe_context *pipe, struct pipe_query *q)
  89 {
  90    struct softpipe_context *softpipe = softpipe_context( pipe );
  91    struct softpipe_query *sq = softpipe_query(q);
  92
  93    switch (sq->type) {
  94    case PIPE_QUERY_OCCLUSION_COUNTER:
  95    case PIPE_QUERY_OCCLUSION_PREDICATE:
  96       sq->start = softpipe->occlusion_count;
  97       break;
  98    case PIPE_QUERY_TIME_ELAPSED:
  99       sq->start = os_time_get_nano();
 100       break;
 101    case PIPE_QUERY_SO_STATISTICS:
 102       sq->so.primitives_storage_needed = 0;
 103       sq->num_primitives_generated = 0;
 104       softpipe->num_primitives_generated = 0;
 105       sq->so.num_primitives_written = 0;
 106       softpipe->so_stats.num_primitives_written = 0;
 107       break;
 108    case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
 109       sq->end = FALSE;
 110       break;
 111    case PIPE_QUERY_PRIMITIVES_EMITTED:
 112       sq->so.num_primitives_written = 0;
 113       softpipe->so_stats.num_primitives_written = 0;
 114       break;
 115    case PIPE_QUERY_PRIMITIVES_GENERATED:
 116       sq->num_primitives_generated = 0;
 117       softpipe->num_primitives_generated = 0;
 118       break;
 119    case PIPE_QUERY_TIMESTAMP:
 120    case PIPE_QUERY_GPU_FINISHED:
 121    case PIPE_QUERY_TIMESTAMP_DISJOINT:
 122       break;
 123    case PIPE_QUERY_PIPELINE_STATISTICS:
 124       /* reset our cache */
 125       if (softpipe->active_statistics_queries == 0) {
 126          memset(&softpipe->pipeline_statistics, 0,
 127                 sizeof(softpipe->pipeline_statistics));
 128       }
 129       memcpy(&sq->stats, &softpipe->pipeline_statistics,
 130              sizeof(sq->stats));
 131       softpipe->active_statistics_queries++;
 132       break;
 133    default:
 134       assert(0);
 135       break;
 136    }
 137    softpipe->active_query_count++;
 138    softpipe->dirty |= SP_NEW_QUERY;
 139 }
 140
 141
 142 static void
 143 softpipe_end_query(struct pipe_context *pipe, struct pipe_query *q)
 144 {
 145    struct softpipe_context *softpipe = softpipe_context( pipe );
 146    struct softpipe_query *sq = softpipe_query(q);
 147
 148    softpipe->active_query_count--;
 149    switch (sq->type) {
 150    case PIPE_QUERY_OCCLUSION_COUNTER:
 151    case PIPE_QUERY_OCCLUSION_PREDICATE:
 152       sq->end = softpipe->occlusion_count;
 153       break;
 154    case PIPE_QUERY_TIMESTAMP:
 155       sq->start = 0;
 156       /* fall through */
 157    case PIPE_QUERY_TIME_ELAPSED:
 158       sq->end = os_time_get_nano();
 159       break;
 160    case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
 161       sq->end = (softpipe->num_primitives_generated >
 162                  softpipe->so_stats.num_primitives_written);
 163       break;
 164    case PIPE_QUERY_SO_STATISTICS:
 165       sq->num_primitives_generated =
 166          softpipe->num_primitives_generated;
 167       sq->so.num_primitives_written =
 168          softpipe->so_stats.num_primitives_written;
 169       break;
 170    case PIPE_QUERY_PRIMITIVES_EMITTED:
 171       sq->so.num_primitives_written =
 172          softpipe->so_stats.num_primitives_written;
 173       break;
 174    case PIPE_QUERY_PRIMITIVES_GENERATED:
 175       sq->num_primitives_generated = softpipe->num_primitives_generated;
 176       break;
 177    case PIPE_QUERY_GPU_FINISHED:
 178    case PIPE_QUERY_TIMESTAMP_DISJOINT:
 179       break;
 180    case PIPE_QUERY_PIPELINE_STATISTICS:
 181       sq->stats.ia_vertices =
 182          softpipe->pipeline_statistics.ia_vertices - sq->stats.ia_vertices;
 183       sq->stats.ia_primitives =
 184          softpipe->pipeline_statistics.ia_primitives - sq->stats.ia_primitives;
 185       sq->stats.vs_invocations =
 186          softpipe->pipeline_statistics.vs_invocations - sq->stats.vs_invocations;
 187       sq->stats.gs_invocations =
 188          softpipe->pipeline_statistics.gs_invocations - sq->stats.gs_invocations;
 189       sq->stats.gs_primitives =
 190          softpipe->pipeline_statistics.gs_primitives - sq->stats.gs_primitives;
 191       sq->stats.c_invocations =
 192          softpipe->pipeline_statistics.c_invocations - sq->stats.c_invocations;
 193       sq->stats.c_primitives =
 194          softpipe->pipeline_statistics.c_primitives - sq->stats.c_primitives;
 195       sq->stats.ps_invocations =
 196          softpipe->pipeline_statistics.ps_invocations - sq->stats.ps_invocations;
 197
 198       softpipe->active_statistics_queries--;
 199       break;
 200    default:
 201       assert(0);
 202       break;
 203    }
 204    softpipe->dirty |= SP_NEW_QUERY;
 205 }
 206
 207
 208 static boolean
 209 softpipe_get_query_result(struct pipe_context *pipe,
 210                           struct pipe_query *q,
 211                           boolean wait,
 212                           union pipe_query_result *vresult)
 213 {
 214    struct softpipe_query *sq = softpipe_query(q);
 215    uint64_t *result = (uint64_t*)vresult;
 216
 217    switch (sq->type) {
 218    case PIPE_QUERY_SO_STATISTICS: {
 219       struct pipe_query_data_so_statistics *stats =
 220          (struct pipe_query_data_so_statistics *)vresult;
 221       stats->num_primitives_written = sq->so.num_primitives_written;
 222       stats->primitives_storage_needed = sq->num_primitives_generated;
 223    }
 224       break;
 225    case PIPE_QUERY_PIPELINE_STATISTICS:
 226       memcpy(vresult, &sq->stats,
 227              sizeof(struct pipe_query_data_pipeline_statistics));;
 228       break;
 229    case PIPE_QUERY_GPU_FINISHED:
 230       vresult->b = TRUE;
 231       break;
 232    case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
 233       vresult->b = sq->end != 0;
 234       break;
 235    case PIPE_QUERY_TIMESTAMP_DISJOINT: {
 236       struct pipe_query_data_timestamp_disjoint *td =
 237           (struct pipe_query_data_timestamp_disjoint *)vresult;
 238       /* os_get_time_nano return nanoseconds */
 239       td->frequency = UINT64_C(1000000000);
 240       td->disjoint = FALSE;
 241    }
 242       break;
 243    case PIPE_QUERY_PRIMITIVES_EMITTED:
 244       *result = sq->so.num_primitives_written;
 245       break;
 246    case PIPE_QUERY_PRIMITIVES_GENERATED:
 247       *result = sq->num_primitives_generated;
 248       break;
 249    case PIPE_QUERY_OCCLUSION_PREDICATE:
 250       vresult->b = sq->end - sq->start != 0;
 251       break;
 252    default:
 253       *result = sq->end - sq->start;
 254       break;
 255    }
 256    return TRUE;
 257 }
 258
 259
 260 /**
 261  * Called by rendering function to check rendering is conditional.
 262  * \return TRUE if we should render, FALSE if we should skip rendering
 263  */
 264 boolean
 265 softpipe_check_render_cond(struct softpipe_context *sp)
 266 {
 267    struct pipe_context *pipe = &sp->pipe;
 268    boolean b, wait;
 269    uint64_t result;
 270
 271    if (!sp->render_cond_query) {
 272       return TRUE;  /* no query predicate, draw normally */
 273    }
 274
 275    wait = (sp->render_cond_mode == PIPE_RENDER_COND_WAIT ||
 276            sp->render_cond_mode == PIPE_RENDER_COND_BY_REGION_WAIT);
 277
 278    b = pipe->get_query_result(pipe, sp->render_cond_query, wait,
 279                               (void*)&result);
 280    if (b)
 281       return (!result == sp->render_cond_cond);
 282    else
 283       return TRUE;
 284 }
 285
 286
 287 void softpipe_init_query_funcs(struct softpipe_context *softpipe )
 288 {
 289    softpipe->pipe.create_query = softpipe_create_query;
 290    softpipe->pipe.destroy_query = softpipe_destroy_query;
 291    softpipe->pipe.begin_query = softpipe_begin_query;
 292    softpipe->pipe.end_query = softpipe_end_query;
 293    softpipe->pipe.get_query_result = softpipe_get_query_result;
 294 }
 295
 296