src/gallium/drivers/r600/r600_query.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23 #include "r600_pipe.h"
  24 #include "r600d.h"
  25
  26 static struct pipe_query *r600_create_query(struct pipe_context *ctx, unsigned query_type)
  27 {
  28         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  29
  30         return (struct pipe_query*)r600_context_query_create(&rctx->ctx, query_type);
  31 }
  32
  33 static void r600_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
  34 {
  35         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  36
  37         r600_context_query_destroy(&rctx->ctx, (struct r600_query *)query);
  38 }
  39
  40 static void r600_begin_query(struct pipe_context *ctx, struct pipe_query *query)
  41 {
  42         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  43         struct r600_query *rquery = (struct r600_query *)query;
  44
  45         rquery->result = 0;
  46         rquery->results_start = rquery->results_end;
  47         r600_query_begin(&rctx->ctx, (struct r600_query *)query);
  48 }
  49
  50 static void r600_end_query(struct pipe_context *ctx, struct pipe_query *query)
  51 {
  52         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  53
  54         r600_query_end(&rctx->ctx, (struct r600_query *)query);
  55 }
  56
  57 static boolean r600_get_query_result(struct pipe_context *ctx,
  58                                         struct pipe_query *query,
  59                                         boolean wait, void *vresult)
  60 {
  61         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  62         struct r600_query *rquery = (struct r600_query *)query;
  63
  64         return r600_context_query_result(&rctx->ctx, rquery, wait, vresult);
  65 }
  66
  67 static void r600_render_condition(struct pipe_context *ctx,
  68                                   struct pipe_query *query,
  69                                   uint mode)
  70 {
  71         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  72         struct r600_query *rquery = (struct r600_query *)query;
  73         int wait_flag = 0;
  74
  75         /* If we already have nonzero result, render unconditionally */
  76         if (query != NULL && rquery->result != 0)
  77                 return;
  78
  79         rctx->current_render_cond = query;
  80         rctx->current_render_cond_mode = mode;
  81
  82         if (query == NULL) {
  83                 if (rctx->ctx.predicate_drawing) {
  84                         rctx->ctx.predicate_drawing = false;
  85                         r600_query_predication(&rctx->ctx, NULL, PREDICATION_OP_CLEAR, 1);
  86                 }
  87                 return;
  88         }
  89
  90         if (mode == PIPE_RENDER_COND_WAIT ||
  91             mode == PIPE_RENDER_COND_BY_REGION_WAIT) {
  92                 wait_flag = 1;
  93         }
  94
  95         rctx->ctx.predicate_drawing = true;
  96         r600_query_predication(&rctx->ctx, rquery, PREDICATION_OP_ZPASS, wait_flag);
  97 }
  98
  99 void r600_init_query_functions(struct r600_pipe_context *rctx)
 100 {
 101         rctx->context.create_query = r600_create_query;
 102         rctx->context.destroy_query = r600_destroy_query;
 103         rctx->context.begin_query = r600_begin_query;
 104         rctx->context.end_query = r600_end_query;
 105         rctx->context.get_query_result = r600_get_query_result;
 106
 107         if (r600_get_num_backends(rctx->screen->radeon) > 0)
 108             rctx->context.render_condition = r600_render_condition;
 109 }