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 "util/u_memory.h"
24 #include "util/u_simple_list.h"
26 #include "r300_context.h"
27 #include "r300_screen.h"
28 #include "r300_emit.h"
29 #include "r300_query.h"
33 static struct pipe_query
*r300_create_query(struct pipe_context
*pipe
,
36 struct r300_context
*r300
= r300_context(pipe
);
37 struct r300_screen
*r300screen
= r300
->screen
;
39 struct r300_query
*q
, *qptr
;
41 q
= CALLOC_STRUCT(r300_query
);
44 assert(q
->type
== PIPE_QUERY_OCCLUSION_COUNTER
);
48 if (r300screen
->caps
.family
== CHIP_FAMILY_RV530
)
49 query_size
= r300screen
->caps
.num_z_pipes
* sizeof(uint32_t);
51 query_size
= r300screen
->caps
.num_frag_pipes
* sizeof(uint32_t);
53 if (!is_empty_list(&r300
->query_list
)) {
54 qptr
= last_elem(&r300
->query_list
);
55 q
->offset
= qptr
->offset
+ query_size
;
57 insert_at_tail(&r300
->query_list
, q
);
60 if (q
->offset
>= 4096) {
64 return (struct pipe_query
*)q
;
67 static void r300_destroy_query(struct pipe_context
* pipe
,
68 struct pipe_query
* query
)
70 struct r300_query
* q
= (struct r300_query
*)query
;
76 static void r300_begin_query(struct pipe_context
* pipe
,
77 struct pipe_query
* query
)
80 struct r300_context
* r300
= r300_context(pipe
);
81 struct r300_query
* q
= (struct r300_query
*)query
;
83 assert(r300
->query_current
== NULL
);
85 pipe_buffer_write(pipe
,
92 r300
->query_current
= q
;
93 r300
->query_start
.dirty
= TRUE
;
96 static void r300_end_query(struct pipe_context
* pipe
,
97 struct pipe_query
* query
)
99 struct r300_context
* r300
= r300_context(pipe
);
100 struct r300_query
* q
= (struct r300_query
*)query
;
102 r300_emit_query_end(r300
);
103 q
->begin_emitted
= false;
104 r300
->query_current
= NULL
;
107 static boolean
r300_get_query_result(struct pipe_context
* pipe
,
108 struct pipe_query
* query
,
112 struct r300_context
* r300
= r300_context(pipe
);
113 struct r300_screen
* r300screen
= r300
->screen
;
114 struct r300_query
*q
= (struct r300_query
*)query
;
115 struct pipe_transfer
*transfer
;
116 unsigned flags
= PIPE_TRANSFER_READ
;
119 unsigned i
, num_results
;
121 if (q
->flushed
== FALSE
)
122 pipe
->flush(pipe
, 0, NULL
);
124 flags
|= PIPE_TRANSFER_DONTBLOCK
;
127 map
= pipe_buffer_map(pipe
, r300
->oqbo
, flags
, &transfer
);
130 map
+= q
->offset
/ 4;
132 if (r300screen
->caps
.family
== CHIP_FAMILY_RV530
)
133 num_results
= r300screen
->caps
.num_z_pipes
;
135 num_results
= r300screen
->caps
.num_frag_pipes
;
137 for (i
= 0; i
< num_results
; i
++) {
139 /* Looks like our results aren't ready yet. */
141 fprintf(stderr
, "r300: Despite waiting, OQ results haven't "
150 pipe_buffer_unmap(pipe
, r300
->oqbo
, transfer
);
153 /* Our results haven't been written yet... */
161 static void r300_render_condition(struct pipe_context
*pipe
,
162 struct pipe_query
*query
,
165 struct r300_context
*r300
= r300_context(pipe
);
170 wait
= mode
== PIPE_RENDER_COND_WAIT
||
171 mode
== PIPE_RENDER_COND_BY_REGION_WAIT
;
173 if (!r300_get_query_result(pipe
, query
, wait
, &result
)) {
174 r300
->skip_rendering
= FALSE
;
177 r300
->skip_rendering
= result
== 0;
179 r300
->skip_rendering
= FALSE
;
183 void r300_init_query_functions(struct r300_context
* r300
) {
184 r300
->context
.create_query
= r300_create_query
;
185 r300
->context
.destroy_query
= r300_destroy_query
;
186 r300
->context
.begin_query
= r300_begin_query
;
187 r300
->context
.end_query
= r300_end_query
;
188 r300
->context
.get_query_result
= r300_get_query_result
;
189 r300
->context
.render_condition
= r300_render_condition
;