src/gallium/drivers/llvmpipe/lp_query.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * Copyright 2010 VMware, Inc.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 /* Authors:
  30  *    Keith Whitwell, Qicheng Christopher Li, Brian Paul
  31  */
  32
  33 #include "draw/draw_context.h"
  34 #include "pipe/p_defines.h"
  35 #include "util/u_memory.h"
  36 #include "os/os_time.h"
  37 #include "lp_context.h"
  38 #include "lp_flush.h"
  39 #include "lp_fence.h"
  40 #include "lp_query.h"
  41 #include "lp_screen.h"
  42 #include "lp_state.h"
  43 #include "lp_rast.h"
  44
  45
  46 static struct llvmpipe_query *llvmpipe_query( struct pipe_query *p )
  47 {
  48    return (struct llvmpipe_query *)p;
  49 }
  50
  51 static struct pipe_query *
  52 llvmpipe_create_query(struct pipe_context *pipe,
  53                       unsigned type)
  54 {
  55    struct llvmpipe_query *pq;
  56
  57    assert(type < PIPE_QUERY_TYPES);
  58
  59    pq = CALLOC_STRUCT( llvmpipe_query );
  60
  61    if (pq) {
  62       pq->type = type;
  63    }
  64
  65    return (struct pipe_query *) pq;
  66 }
  67
  68
  69 static void
  70 llvmpipe_destroy_query(struct pipe_context *pipe, struct pipe_query *q)
  71 {
  72    struct llvmpipe_query *pq = llvmpipe_query(q);
  73
  74    /* Ideally we would refcount queries & not get destroyed until the
  75     * last scene had finished with us.
  76     */
  77    if (pq->fence) {
  78       if (!lp_fence_issued(pq->fence))
  79          llvmpipe_flush(pipe, NULL, __FUNCTION__);
  80
  81       if (!lp_fence_signalled(pq->fence))
  82          lp_fence_wait(pq->fence);
  83
  84       lp_fence_reference(&pq->fence, NULL);
  85    }
  86
  87    FREE(pq);
  88 }
  89
  90
  91 static boolean
  92 llvmpipe_get_query_result(struct pipe_context *pipe,
  93                           struct pipe_query *q,
  94                           boolean wait,
  95                           union pipe_query_result *vresult)
  96 {
  97    struct llvmpipe_screen *screen = llvmpipe_screen(pipe->screen);
  98    unsigned num_threads = MAX2(1, screen->num_threads);
  99    struct llvmpipe_query *pq = llvmpipe_query(q);
 100    uint64_t *result = (uint64_t *)vresult;
 101    int i;
 102
 103    if (pq->fence) {
 104       /* only have a fence if there was a scene */
 105       if (!lp_fence_signalled(pq->fence)) {
 106          if (!lp_fence_issued(pq->fence))
 107             llvmpipe_flush(pipe, NULL, __FUNCTION__);
 108
 109          if (!wait)
 110             return FALSE;
 111
 112          lp_fence_wait(pq->fence);
 113       }
 114    }
 115
 116    /* Sum the results from each of the threads:
 117     */
 118    *result = 0;
 119
 120    switch (pq->type) {
 121    case PIPE_QUERY_OCCLUSION_COUNTER:
 122       for (i = 0; i < num_threads; i++) {
 123          *result += pq->end[i];
 124       }
 125       break;
 126    case PIPE_QUERY_OCCLUSION_PREDICATE:
 127       for (i = 0; i < num_threads; i++) {
 128          /* safer (still not guaranteed) when there's an overflow */
 129          vresult->b = vresult->b || pq->end[i];
 130       }
 131       break;
 132    case PIPE_QUERY_TIMESTAMP:
 133       for (i = 0; i < num_threads; i++) {
 134          if (pq->end[i] > *result) {
 135             *result = pq->end[i];
 136          }
 137       }
 138       break;
 139    case PIPE_QUERY_TIMESTAMP_DISJOINT: {
 140       struct pipe_query_data_timestamp_disjoint *td =
 141          (struct pipe_query_data_timestamp_disjoint *)vresult;
 142       /* os_get_time_nano return nanoseconds */
 143       td->frequency = UINT64_C(1000000000);
 144       td->disjoint = FALSE;
 145    }
 146       break;
 147    case PIPE_QUERY_GPU_FINISHED:
 148       vresult->b = TRUE;
 149       break;
 150    case PIPE_QUERY_PRIMITIVES_GENERATED:
 151       *result = pq->num_primitives_generated;
 152       break;
 153    case PIPE_QUERY_PRIMITIVES_EMITTED:
 154       *result = pq->num_primitives_written;
 155       break;
 156    case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
 157       vresult->b = pq->num_primitives_generated > pq->num_primitives_written;
 158       break;
 159    case PIPE_QUERY_SO_STATISTICS: {
 160       struct pipe_query_data_so_statistics *stats =
 161          (struct pipe_query_data_so_statistics *)vresult;
 162       stats->num_primitives_written = pq->num_primitives_written;
 163       stats->primitives_storage_needed = pq->num_primitives_generated;
 164    }
 165       break;
 166    case PIPE_QUERY_PIPELINE_STATISTICS: {
 167       struct pipe_query_data_pipeline_statistics *stats =
 168          (struct pipe_query_data_pipeline_statistics *)vresult;
 169       /* only ps_invocations come from binned query */
 170       for (i = 0; i < num_threads; i++) {
 171          pq->stats.ps_invocations += pq->end[i];
 172       }
 173       pq->stats.ps_invocations *= LP_RASTER_BLOCK_SIZE * LP_RASTER_BLOCK_SIZE;
 174       *stats = pq->stats;
 175    }
 176       break;
 177    default:
 178       assert(0);
 179       break;
 180    }
 181
 182    return TRUE;
 183 }
 184
 185
 186 static void
 187 llvmpipe_begin_query(struct pipe_context *pipe, struct pipe_query *q)
 188 {
 189    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
 190    struct llvmpipe_query *pq = llvmpipe_query(q);
 191
 192    /* Check if the query is already in the scene.  If so, we need to
 193     * flush the scene now.  Real apps shouldn't re-use a query in a
 194     * frame of rendering.
 195     */
 196    if (pq->fence && !lp_fence_issued(pq->fence)) {
 197       llvmpipe_finish(pipe, __FUNCTION__);
 198    }
 199
 200
 201    memset(pq->start, 0, sizeof(pq->start));
 202    memset(pq->end, 0, sizeof(pq->end));
 203    lp_setup_begin_query(llvmpipe->setup, pq);
 204
 205    switch (pq->type) {
 206    case PIPE_QUERY_PRIMITIVES_EMITTED:
 207       pq->num_primitives_written = llvmpipe->so_stats.num_primitives_written;
 208       break;
 209    case PIPE_QUERY_PRIMITIVES_GENERATED:
 210       pq->num_primitives_generated = llvmpipe->so_stats.primitives_storage_needed;
 211       break;
 212    case PIPE_QUERY_SO_STATISTICS:
 213       pq->num_primitives_written = llvmpipe->so_stats.num_primitives_written;
 214       pq->num_primitives_generated = llvmpipe->so_stats.primitives_storage_needed;
 215       break;
 216    case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
 217       pq->num_primitives_written = llvmpipe->so_stats.num_primitives_written;
 218       pq->num_primitives_generated = llvmpipe->so_stats.primitives_storage_needed;
 219       break;
 220    case PIPE_QUERY_PIPELINE_STATISTICS:
 221       /* reset our cache */
 222       if (llvmpipe->active_statistics_queries == 0) {
 223          memset(&llvmpipe->pipeline_statistics, 0,
 224                 sizeof(llvmpipe->pipeline_statistics));
 225       }
 226       memcpy(&pq->stats, &llvmpipe->pipeline_statistics, sizeof(pq->stats));
 227       llvmpipe->active_statistics_queries++;
 228       break;
 229    case PIPE_QUERY_OCCLUSION_COUNTER:
 230    case PIPE_QUERY_OCCLUSION_PREDICATE:
 231       llvmpipe->active_occlusion_queries++;
 232       llvmpipe->dirty |= LP_NEW_OCCLUSION_QUERY;
 233       break;
 234    default:
 235       break;
 236    }
 237 }
 238
 239
 240 static void
 241 llvmpipe_end_query(struct pipe_context *pipe, struct pipe_query *q)
 242 {
 243    struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
 244    struct llvmpipe_query *pq = llvmpipe_query(q);
 245
 246    lp_setup_end_query(llvmpipe->setup, pq);
 247
 248    switch (pq->type) {
 249
 250    case PIPE_QUERY_PRIMITIVES_EMITTED:
 251       pq->num_primitives_written =
 252          llvmpipe->so_stats.num_primitives_written - pq->num_primitives_written;
 253       break;
 254    case PIPE_QUERY_PRIMITIVES_GENERATED:
 255       pq->num_primitives_generated =
 256          llvmpipe->so_stats.primitives_storage_needed - pq->num_primitives_generated;
 257       break;
 258    case PIPE_QUERY_SO_STATISTICS:
 259       pq->num_primitives_written =
 260          llvmpipe->so_stats.num_primitives_written - pq->num_primitives_written;
 261       pq->num_primitives_generated =
 262          llvmpipe->so_stats.primitives_storage_needed - pq->num_primitives_generated;
 263       break;
 264    case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
 265       pq->num_primitives_written =
 266          llvmpipe->so_stats.num_primitives_written - pq->num_primitives_written;
 267       pq->num_primitives_generated =
 268          llvmpipe->so_stats.primitives_storage_needed - pq->num_primitives_generated;
 269       break;
 270    case PIPE_QUERY_PIPELINE_STATISTICS:
 271       pq->stats.ia_vertices =
 272          llvmpipe->pipeline_statistics.ia_vertices - pq->stats.ia_vertices;
 273       pq->stats.ia_primitives =
 274          llvmpipe->pipeline_statistics.ia_primitives - pq->stats.ia_primitives;
 275       pq->stats.vs_invocations =
 276          llvmpipe->pipeline_statistics.vs_invocations - pq->stats.vs_invocations;
 277       pq->stats.gs_invocations =
 278          llvmpipe->pipeline_statistics.gs_invocations - pq->stats.gs_invocations;
 279       pq->stats.gs_primitives =
 280          llvmpipe->pipeline_statistics.gs_primitives - pq->stats.gs_primitives;
 281       pq->stats.c_invocations =
 282          llvmpipe->pipeline_statistics.c_invocations - pq->stats.c_invocations;
 283       pq->stats.c_primitives =
 284          llvmpipe->pipeline_statistics.c_primitives - pq->stats.c_primitives;
 285       pq->stats.ps_invocations =
 286          llvmpipe->pipeline_statistics.ps_invocations - pq->stats.ps_invocations;
 287
 288       llvmpipe->active_statistics_queries--;
 289       break;
 290    case PIPE_QUERY_OCCLUSION_COUNTER:
 291    case PIPE_QUERY_OCCLUSION_PREDICATE:
 292       assert(llvmpipe->active_occlusion_queries);
 293       llvmpipe->active_occlusion_queries--;
 294       llvmpipe->dirty |= LP_NEW_OCCLUSION_QUERY;
 295       break;
 296    default:
 297       break;
 298    }
 299 }
 300
 301 boolean
 302 llvmpipe_check_render_cond(struct llvmpipe_context *lp)
 303 {
 304    struct pipe_context *pipe = &lp->pipe;
 305    boolean b, wait;
 306    uint64_t result;
 307
 308    if (!lp->render_cond_query)
 309       return TRUE; /* no query predicate, draw normally */
 310
 311    wait = (lp->render_cond_mode == PIPE_RENDER_COND_WAIT ||
 312            lp->render_cond_mode == PIPE_RENDER_COND_BY_REGION_WAIT);
 313
 314    b = pipe->get_query_result(pipe, lp->render_cond_query, wait, (void*)&result);
 315    if (b)
 316       return (!result == lp->render_cond_cond);
 317    else
 318       return TRUE;
 319 }
 320
 321 void llvmpipe_init_query_funcs(struct llvmpipe_context *llvmpipe )
 322 {
 323    llvmpipe->pipe.create_query = llvmpipe_create_query;
 324    llvmpipe->pipe.destroy_query = llvmpipe_destroy_query;
 325    llvmpipe->pipe.begin_query = llvmpipe_begin_query;
 326    llvmpipe->pipe.end_query = llvmpipe_end_query;
 327    llvmpipe->pipe.get_query_result = llvmpipe_get_query_result;
 328 }
 329
 330