1 /**************************************************************************
3 * Copyright 2013 Marek Olšák <maraeo@gmail.com>
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 /* This file contains code for reading values from pipe queries
29 * for displaying on the HUD. To prevent stalls when reading queries, we
30 * keep a list of busy queries in a ring. We read only those queries which
34 #include "hud/hud_private.h"
35 #include "pipe/p_screen.h"
36 #include "os/os_time.h"
37 #include "util/u_memory.h"
43 struct pipe_context
*pipe
;
45 unsigned result_index
; /* unit depends on query_type */
47 /* Ring of queries. If a query is busy, we use another slot. */
48 struct pipe_query
*query
[NUM_QUERIES
];
53 uint64_t results_cumulative
;
58 query_new_value(struct hud_graph
*gr
)
60 struct query_info
*info
= gr
->query_data
;
61 struct pipe_context
*pipe
= info
->pipe
;
62 uint64_t now
= os_time_get();
64 if (info
->last_time
) {
65 pipe
->end_query(pipe
, info
->query
[info
->head
]);
67 /* read query results */
69 struct pipe_query
*query
= info
->query
[info
->tail
];
70 union pipe_query_result result
;
71 uint64_t *res64
= (uint64_t *)&result
;
73 if (pipe
->get_query_result(pipe
, query
, FALSE
, &result
)) {
74 info
->results_cumulative
+= res64
[info
->result_index
];
77 if (info
->tail
== info
->head
)
80 info
->tail
= (info
->tail
+1) % NUM_QUERIES
;
83 /* the oldest query is busy */
84 if ((info
->head
+1) % NUM_QUERIES
== info
->tail
) {
85 /* all queries are busy, throw away the last query and create
88 "gallium_hud: all queries are busy after %i frames, "
89 "can't add another query\n",
91 pipe
->destroy_query(pipe
, info
->query
[info
->head
]);
92 info
->query
[info
->head
] =
93 pipe
->create_query(pipe
, info
->query_type
, 0);
96 /* the last query is busy, we need to add a new one we can use
98 info
->head
= (info
->head
+1) % NUM_QUERIES
;
99 if (!info
->query
[info
->head
]) {
100 info
->query
[info
->head
] =
101 pipe
->create_query(pipe
, info
->query_type
, 0);
108 if (info
->num_results
&& info
->last_time
+ gr
->pane
->period
<= now
) {
109 /* compute the average value across all frames */
110 hud_graph_add_value(gr
, info
->results_cumulative
/ info
->num_results
);
112 info
->last_time
= now
;
113 info
->results_cumulative
= 0;
114 info
->num_results
= 0;
117 pipe
->begin_query(pipe
, info
->query
[info
->head
]);
121 info
->last_time
= now
;
122 info
->query
[info
->head
] = pipe
->create_query(pipe
, info
->query_type
, 0);
123 pipe
->begin_query(pipe
, info
->query
[info
->head
]);
128 free_query_info(void *ptr
)
130 struct query_info
*info
= ptr
;
132 if (info
->last_time
) {
133 struct pipe_context
*pipe
= info
->pipe
;
136 pipe
->end_query(pipe
, info
->query
[info
->head
]);
138 for (i
= 0; i
< Elements(info
->query
); i
++) {
139 if (info
->query
[i
]) {
140 pipe
->destroy_query(pipe
, info
->query
[i
]);
148 hud_pipe_query_install(struct hud_pane
*pane
, struct pipe_context
*pipe
,
149 const char *name
, unsigned query_type
,
150 unsigned result_index
,
151 uint64_t max_value
, boolean uses_byte_units
)
153 struct hud_graph
*gr
;
154 struct query_info
*info
;
156 gr
= CALLOC_STRUCT(hud_graph
);
160 strncpy(gr
->name
, name
, sizeof(gr
->name
));
161 gr
->name
[sizeof(gr
->name
) - 1] = '\0';
162 gr
->query_data
= CALLOC_STRUCT(query_info
);
163 if (!gr
->query_data
) {
168 gr
->query_new_value
= query_new_value
;
169 gr
->free_query_data
= free_query_info
;
171 info
= gr
->query_data
;
173 info
->query_type
= query_type
;
174 info
->result_index
= result_index
;
176 hud_pane_add_graph(pane
, gr
);
177 if (pane
->max_value
< max_value
)
178 hud_pane_set_max_value(pane
, max_value
);
180 pane
->uses_byte_units
= TRUE
;
184 hud_driver_query_install(struct hud_pane
*pane
, struct pipe_context
*pipe
,
187 struct pipe_screen
*screen
= pipe
->screen
;
188 struct pipe_driver_query_info query
;
189 unsigned num_queries
, i
;
190 boolean uses_byte_units
;
191 boolean found
= FALSE
;
193 if (!screen
->get_driver_query_info
)
196 num_queries
= screen
->get_driver_query_info(screen
, 0, NULL
);
198 for (i
= 0; i
< num_queries
; i
++) {
199 if (screen
->get_driver_query_info(screen
, i
, &query
) &&
200 strcmp(query
.name
, name
) == 0) {
209 uses_byte_units
= query
.type
== PIPE_DRIVER_QUERY_TYPE_BYTES
;
210 hud_pipe_query_install(pane
, pipe
, query
.name
, query
.query_type
, 0,
211 query
.max_value
.u64
, uses_byte_units
);