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 calculating framerate for displaying on the HUD.
31 #include "hud/hud_private.h"
32 #include "os/os_time.h"
33 #include "util/u_memory.h"
41 query_fps(struct hud_graph
*gr
)
43 struct fps_info
*info
= gr
->query_data
;
44 uint64_t now
= os_time_get();
48 if (info
->last_time
) {
49 if (info
->last_time
+ gr
->pane
->period
<= now
) {
50 double fps
= (uint64_t)info
->frames
* 1000000 /
51 (double)(now
- info
->last_time
);
53 info
->last_time
= now
;
55 hud_graph_add_value(gr
, (uint64_t) fps
);
59 info
->last_time
= now
;
64 free_query_data(void *p
)
70 hud_fps_graph_install(struct hud_pane
*pane
)
72 struct hud_graph
*gr
= CALLOC_STRUCT(hud_graph
);
77 strcpy(gr
->name
, "fps");
78 gr
->query_data
= CALLOC_STRUCT(fps_info
);
79 if (!gr
->query_data
) {
84 gr
->query_new_value
= query_fps
;
86 /* Don't use free() as our callback as that messes up Gallium's
87 * memory debugger. Use simple free_query_data() wrapper.
89 gr
->free_query_data
= free_query_data
;
91 hud_pane_add_graph(pane
, gr
);