r600_query.c revision 3464ebd5 
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
26static 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
33static 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
40static 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
50static 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
57static 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
67static 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
99void 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}
110