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