src/mesa/state_tracker/st_cb_queryobj.c

   1 /**************************************************************************
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   3  * Copyright 2007 VMware, Inc.
   4  * All Rights Reserved.
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   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
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  13  *
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  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
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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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  26  **************************************************************************/
  27
  28
  29 /**
  30  * glBegin/EndQuery interface to pipe
  31  *
  32  * \author Brian Paul
  33  */
  34
  35
  36 #include "main/imports.h"
  37 #include "main/context.h"
  38
  39 #include "pipe/p_context.h"
  40 #include "pipe/p_defines.h"
  41 #include "pipe/p_screen.h"
  42 #include "util/u_inlines.h"
  43 #include "st_context.h"
  44 #include "st_cb_queryobj.h"
  45 #include "st_cb_bitmap.h"
  46 #include "st_cb_bufferobjects.h"
  47
  48
  49 static struct gl_query_object *
  50 st_NewQueryObject(struct gl_context *ctx, GLuint id)
  51 {
  52    struct st_query_object *stq = ST_CALLOC_STRUCT(st_query_object);
  53    if (stq) {
  54       stq->base.Id = id;
  55       stq->base.Ready = GL_TRUE;
  56       stq->pq = NULL;
  57       stq->type = PIPE_QUERY_TYPES; /* an invalid value */
  58       return &stq->base;
  59    }
  60    return NULL;
  61 }
  62
  63
  64
  65 static void
  66 st_DeleteQuery(struct gl_context *ctx, struct gl_query_object *q)
  67 {
  68    struct pipe_context *pipe = st_context(ctx)->pipe;
  69    struct st_query_object *stq = st_query_object(q);
  70
  71    if (stq->pq) {
  72       pipe->destroy_query(pipe, stq->pq);
  73       stq->pq = NULL;
  74    }
  75
  76    if (stq->pq_begin) {
  77       pipe->destroy_query(pipe, stq->pq_begin);
  78       stq->pq_begin = NULL;
  79    }
  80
  81    free(stq);
  82 }
  83
  84
  85 static void
  86 st_BeginQuery(struct gl_context *ctx, struct gl_query_object *q)
  87 {
  88    struct st_context *st = st_context(ctx);
  89    struct pipe_context *pipe = st->pipe;
  90    struct st_query_object *stq = st_query_object(q);
  91    unsigned type;
  92
  93    st_flush_bitmap_cache(st_context(ctx));
  94
  95    /* convert GL query type to Gallium query type */
  96    switch (q->Target) {
  97    case GL_ANY_SAMPLES_PASSED:
  98    case GL_ANY_SAMPLES_PASSED_CONSERVATIVE:
  99       /* fall-through */
 100    case GL_SAMPLES_PASSED_ARB:
 101       type = PIPE_QUERY_OCCLUSION_COUNTER;
 102       break;
 103    case GL_PRIMITIVES_GENERATED:
 104       type = PIPE_QUERY_PRIMITIVES_GENERATED;
 105       break;
 106    case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
 107       type = PIPE_QUERY_PRIMITIVES_EMITTED;
 108       break;
 109    case GL_TIME_ELAPSED:
 110       if (st->has_time_elapsed)
 111          type = PIPE_QUERY_TIME_ELAPSED;
 112       else
 113          type = PIPE_QUERY_TIMESTAMP;
 114       break;
 115    case GL_VERTICES_SUBMITTED_ARB:
 116    case GL_PRIMITIVES_SUBMITTED_ARB:
 117    case GL_VERTEX_SHADER_INVOCATIONS_ARB:
 118    case GL_TESS_CONTROL_SHADER_PATCHES_ARB:
 119    case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB:
 120    case GL_GEOMETRY_SHADER_INVOCATIONS:
 121    case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB:
 122    case GL_FRAGMENT_SHADER_INVOCATIONS_ARB:
 123    case GL_COMPUTE_SHADER_INVOCATIONS_ARB:
 124    case GL_CLIPPING_INPUT_PRIMITIVES_ARB:
 125    case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB:
 126       type = PIPE_QUERY_PIPELINE_STATISTICS;
 127       break;
 128    default:
 129       assert(0 && "unexpected query target in st_BeginQuery()");
 130       return;
 131    }
 132
 133    if (stq->type != type) {
 134       /* free old query of different type */
 135       if (stq->pq) {
 136          pipe->destroy_query(pipe, stq->pq);
 137          stq->pq = NULL;
 138       }
 139       if (stq->pq_begin) {
 140          pipe->destroy_query(pipe, stq->pq_begin);
 141          stq->pq_begin = NULL;
 142       }
 143       stq->type = PIPE_QUERY_TYPES; /* an invalid value */
 144    }
 145
 146    if (q->Target == GL_TIME_ELAPSED &&
 147        type == PIPE_QUERY_TIMESTAMP) {
 148       /* Determine time elapsed by emitting two timestamp queries. */
 149       if (!stq->pq_begin) {
 150          stq->pq_begin = pipe->create_query(pipe, type, 0);
 151          stq->type = type;
 152       }
 153       pipe->end_query(pipe, stq->pq_begin);
 154    } else {
 155       if (!stq->pq) {
 156          stq->pq = pipe->create_query(pipe, type, q->Stream);
 157          stq->type = type;
 158       }
 159       if (stq->pq) {
 160          pipe->begin_query(pipe, stq->pq);
 161       }
 162       else {
 163          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBeginQuery");
 164          return;
 165       }
 166    }
 167    assert(stq->type == type);
 168 }
 169
 170
 171 static void
 172 st_EndQuery(struct gl_context *ctx, struct gl_query_object *q)
 173 {
 174    struct pipe_context *pipe = st_context(ctx)->pipe;
 175    struct st_query_object *stq = st_query_object(q);
 176
 177    st_flush_bitmap_cache(st_context(ctx));
 178
 179    if ((q->Target == GL_TIMESTAMP ||
 180         q->Target == GL_TIME_ELAPSED) &&
 181        !stq->pq) {
 182       stq->pq = pipe->create_query(pipe, PIPE_QUERY_TIMESTAMP, 0);
 183       stq->type = PIPE_QUERY_TIMESTAMP;
 184    }
 185
 186    if (stq->pq)
 187       pipe->end_query(pipe, stq->pq);
 188 }
 189
 190
 191 static boolean
 192 get_query_result(struct pipe_context *pipe,
 193                  struct st_query_object *stq,
 194                  boolean wait)
 195 {
 196    union pipe_query_result data;
 197
 198    if (!stq->pq) {
 199       /* Only needed in case we failed to allocate the gallium query earlier.
 200        * Return TRUE so we don't spin on this forever.
 201        */
 202       return TRUE;
 203    }
 204
 205    if (!pipe->get_query_result(pipe, stq->pq, wait, &data))
 206       return FALSE;
 207
 208    switch (stq->base.Target) {
 209    case GL_VERTICES_SUBMITTED_ARB:
 210       stq->base.Result = data.pipeline_statistics.ia_vertices;
 211       break;
 212    case GL_PRIMITIVES_SUBMITTED_ARB:
 213       stq->base.Result = data.pipeline_statistics.ia_primitives;
 214       break;
 215    case GL_VERTEX_SHADER_INVOCATIONS_ARB:
 216       stq->base.Result = data.pipeline_statistics.vs_invocations;
 217       break;
 218    case GL_TESS_CONTROL_SHADER_PATCHES_ARB:
 219       stq->base.Result = data.pipeline_statistics.hs_invocations;
 220       break;
 221    case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB:
 222       stq->base.Result = data.pipeline_statistics.ds_invocations;
 223       break;
 224    case GL_GEOMETRY_SHADER_INVOCATIONS:
 225       stq->base.Result = data.pipeline_statistics.gs_invocations;
 226       break;
 227    case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB:
 228       stq->base.Result = data.pipeline_statistics.gs_primitives;
 229       break;
 230    case GL_FRAGMENT_SHADER_INVOCATIONS_ARB:
 231       stq->base.Result = data.pipeline_statistics.ps_invocations;
 232       break;
 233    case GL_COMPUTE_SHADER_INVOCATIONS_ARB:
 234       stq->base.Result = data.pipeline_statistics.cs_invocations;
 235       break;
 236    case GL_CLIPPING_INPUT_PRIMITIVES_ARB:
 237       stq->base.Result = data.pipeline_statistics.c_invocations;
 238       break;
 239    case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB:
 240       stq->base.Result = data.pipeline_statistics.c_primitives;
 241       break;
 242    default:
 243       stq->base.Result = data.u64;
 244       break;
 245    }
 246
 247    if (stq->base.Target == GL_TIME_ELAPSED &&
 248        stq->type == PIPE_QUERY_TIMESTAMP) {
 249       /* Calculate the elapsed time from the two timestamp queries */
 250       GLuint64EXT Result0 = 0;
 251       assert(stq->pq_begin);
 252       pipe->get_query_result(pipe, stq->pq_begin, TRUE, (void *)&Result0);
 253       stq->base.Result -= Result0;
 254    } else {
 255       assert(!stq->pq_begin);
 256    }
 257
 258    return TRUE;
 259 }
 260
 261
 262 static void
 263 st_WaitQuery(struct gl_context *ctx, struct gl_query_object *q)
 264 {
 265    struct pipe_context *pipe = st_context(ctx)->pipe;
 266    struct st_query_object *stq = st_query_object(q);
 267
 268    /* this function should only be called if we don't have a ready result */
 269    assert(!stq->base.Ready);
 270
 271    while (!stq->base.Ready &&
 272           !get_query_result(pipe, stq, TRUE))
 273    {
 274       /* nothing */
 275    }
 276
 277    q->Ready = GL_TRUE;
 278 }
 279
 280
 281 static void
 282 st_CheckQuery(struct gl_context *ctx, struct gl_query_object *q)
 283 {
 284    struct pipe_context *pipe = st_context(ctx)->pipe;
 285    struct st_query_object *stq = st_query_object(q);
 286    assert(!q->Ready);   /* we should not get called if Ready is TRUE */
 287    q->Ready = get_query_result(pipe, stq, FALSE);
 288 }
 289
 290
 291 static uint64_t
 292 st_GetTimestamp(struct gl_context *ctx)
 293 {
 294    struct pipe_context *pipe = st_context(ctx)->pipe;
 295    struct pipe_screen *screen = pipe->screen;
 296
 297    /* Prefer the per-screen function */
 298    if (screen->get_timestamp) {
 299       return screen->get_timestamp(screen);
 300    }
 301    else {
 302       /* Fall back to the per-context function */
 303       assert(pipe->get_timestamp);
 304       return pipe->get_timestamp(pipe);
 305    }
 306 }
 307
 308 static void
 309 st_StoreQueryResult(struct gl_context *ctx, struct gl_query_object *q,
 310                     struct gl_buffer_object *buf, intptr_t offset,
 311                     GLenum pname, GLenum ptype)
 312 {
 313    struct pipe_context *pipe = st_context(ctx)->pipe;
 314    struct st_query_object *stq = st_query_object(q);
 315    struct st_buffer_object *stObj = st_buffer_object(buf);
 316    boolean wait = pname == GL_QUERY_RESULT;
 317    enum pipe_query_value_type result_type;
 318    int index;
 319
 320    /* GL_QUERY_TARGET is a bit of an extension since it has nothing to
 321     * do with the GPU end of the query. Write it in "by hand".
 322     */
 323    if (pname == GL_QUERY_TARGET) {
 324       /* Assume that the data must be LE. The endianness situation wrt CPU and
 325        * GPU is incredibly confusing, but the vast majority of GPUs are
 326        * LE. When a BE one comes along, this needs some form of resolution.
 327        */
 328       unsigned data[2] = { CPU_TO_LE32(q->Target), 0 };
 329       pipe_buffer_write(pipe, stObj->buffer, offset,
 330                         (ptype == GL_INT64_ARB ||
 331                          ptype == GL_UNSIGNED_INT64_ARB) ? 8 : 4,
 332                         data);
 333       return;
 334    }
 335
 336    switch (ptype) {
 337    case GL_INT:
 338       result_type = PIPE_QUERY_TYPE_I32;
 339       break;
 340    case GL_UNSIGNED_INT:
 341       result_type = PIPE_QUERY_TYPE_U32;
 342       break;
 343    case GL_INT64_ARB:
 344       result_type = PIPE_QUERY_TYPE_I64;
 345       break;
 346    case GL_UNSIGNED_INT64_ARB:
 347       result_type = PIPE_QUERY_TYPE_U64;
 348       break;
 349    default:
 350       unreachable("Unexpected result type");
 351    }
 352
 353    if (pname == GL_QUERY_RESULT_AVAILABLE) {
 354       index = -1;
 355    } else if (stq->type == PIPE_QUERY_PIPELINE_STATISTICS) {
 356       switch (q->Target) {
 357       case GL_VERTICES_SUBMITTED_ARB:
 358          index = 0;
 359          break;
 360       case GL_PRIMITIVES_SUBMITTED_ARB:
 361          index = 1;
 362          break;
 363       case GL_VERTEX_SHADER_INVOCATIONS_ARB:
 364          index = 2;
 365          break;
 366       case GL_GEOMETRY_SHADER_INVOCATIONS:
 367          index = 3;
 368          break;
 369       case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB:
 370          index = 4;
 371          break;
 372       case GL_CLIPPING_INPUT_PRIMITIVES_ARB:
 373          index = 5;
 374          break;
 375       case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB:
 376          index = 6;
 377          break;
 378       case GL_FRAGMENT_SHADER_INVOCATIONS_ARB:
 379          index = 7;
 380          break;
 381       case GL_TESS_CONTROL_SHADER_PATCHES_ARB:
 382          index = 8;
 383          break;
 384       case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB:
 385          index = 9;
 386          break;
 387       case GL_COMPUTE_SHADER_INVOCATIONS_ARB:
 388          index = 10;
 389          break;
 390       default:
 391          unreachable("Unexpected target");
 392       }
 393    } else {
 394       index = 0;
 395    }
 396
 397    pipe->get_query_result_resource(pipe, stq->pq, wait, result_type, index,
 398                                    stObj->buffer, offset);
 399 }
 400
 401 void st_init_query_functions(struct dd_function_table *functions)
 402 {
 403    functions->NewQueryObject = st_NewQueryObject;
 404    functions->DeleteQuery = st_DeleteQuery;
 405    functions->BeginQuery = st_BeginQuery;
 406    functions->EndQuery = st_EndQuery;
 407    functions->WaitQuery = st_WaitQuery;
 408    functions->CheckQuery = st_CheckQuery;
 409    functions->GetTimestamp = st_GetTimestamp;
 410    functions->StoreQueryResult = st_StoreQueryResult;
 411 }