2 * Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
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:
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
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. */
23 #include "r300_query.h"
25 #include "r300_emit.h"
27 static struct pipe_query* r300_create_query(struct pipe_context* pipe,
30 struct r300_context* r300 = r300_context(pipe);
31 struct r300_screen* r300screen = r300_screen(r300->context.screen);
32 unsigned query_size = r300screen->caps->num_frag_pipes * 4;
33 struct r300_query* q, * qptr;
35 q = CALLOC_STRUCT(r300_query);
38 assert(q->type == PIPE_QUERY_OCCLUSION_COUNTER);
42 if (!r300->query_list) {
44 } else if (!is_empty_list(r300->query_list)) {
45 qptr = last_elem(r300->query_list);
46 q->offset = qptr->offset + query_size;
47 insert_at_tail(r300->query_list, q);
51 if (q->offset >= 4096) {
55 return (struct pipe_query*)q;
58 static void r300_destroy_query(struct pipe_context* pipe,
59 struct pipe_query* query)
61 struct r300_query* q = (struct r300_query*)query;
67 static void r300_begin_query(struct pipe_context* pipe,
68 struct pipe_query* query)
71 struct r300_context* r300 = r300_context(pipe);
72 struct r300_query* q = (struct r300_query*)query;
74 map = pipe->screen->buffer_map(pipe->screen, r300->oqbo,
75 PIPE_BUFFER_USAGE_CPU_WRITE);
78 pipe->screen->buffer_unmap(pipe->screen, r300->oqbo);
80 r300_emit_dirty_state(r300);
81 r300_emit_query_begin(r300, q);
84 static void r300_end_query(struct pipe_context* pipe,
85 struct pipe_query* query)
87 struct r300_context* r300 = r300_context(pipe);
88 struct r300_query* q = (struct r300_query*)query;
90 r300_emit_dirty_state(r300);
91 r300_emit_query_end(r300, q);
94 static boolean r300_get_query_result(struct pipe_context* pipe,
95 struct pipe_query* query,
99 struct r300_context* r300 = r300_context(pipe);
100 struct r300_screen* r300screen = r300_screen(r300->context.screen);
101 struct r300_query* q = (struct r300_query*)query;
102 unsigned flags = PIPE_BUFFER_USAGE_CPU_READ;
108 pipe->flush(pipe, 0, NULL);
110 flags |= PIPE_BUFFER_USAGE_DONTBLOCK;
113 map = pipe->screen->buffer_map(pipe->screen, r300->oqbo, flags);
114 map += q->offset / 4;
115 for (i = 0; i < r300screen->caps->num_frag_pipes; i++) {
117 /* Looks like our results aren't ready yet. */
119 debug_printf("r300: Despite waiting, OQ results haven't"
128 pipe->screen->buffer_unmap(pipe->screen, r300->oqbo);
131 /* Our results haven't been written yet... */
139 void r300_init_query_functions(struct r300_context* r300) {
140 r300->context.create_query = r300_create_query;
141 r300->context.destroy_query = r300_destroy_query;
142 r300->context.begin_query = r300_begin_query;
143 r300->context.end_query = r300_end_query;
144 r300->context.get_query_result = r300_get_query_result;