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Throttle RGUI with timers.

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Some drivers have broken VSync and without audio blocking, RGUI can blast away
at 1k+ FPS making it unusable.
This commit is contained in:
Themaister 2013-07-06 20:39:19 +02:00 committed by twinaphex
parent e60f907ec6
commit 73016a2752
3 changed files with 13 additions and 0 deletions
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11
frontend/menu/menu_common.c
View File

@ -577,6 +577,8 @@ void menu_init(void)
RARCH_LOG("[RGUI]: Opening history: %s.\n", history_path);
rgui->history = rom_history_init(history_path, g_settings.game_history_size);
}
rgui->last_time = rarch_get_time_usec();
}
void menu_free(void)
@ -829,6 +831,15 @@ bool menu_iterate(void)
rarch_render_cached_frame();
// Throttle in case VSync is broken (avoid 1000+ FPS RGUI).
rarch_time_t time = rarch_get_time_usec();
rarch_time_t delta = (time - rgui->last_time) / 1000;
rarch_time_t target_msec = 1000 / g_settings.video.refresh_rate;
rarch_time_t sleep_msec = target_msec - delta;
if (sleep_msec > 0)
rarch_sleep(sleep_msec);
rgui->last_time = rarch_get_time_usec();
if (driver.video_poke && driver.video_poke->set_texture_enable)
driver.video_poke->set_texture_enable(driver.video_data, false,
MENU_TEXTURE_FULLSCREEN);

1
frontend/menu/menu_common.h
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@ -262,6 +262,7 @@ typedef struct
unsigned current_pad;
rom_history_t *history;
rarch_time_t last_time; // Used to throttle RGUI in case VSync is broken.
} rgui_handle_t;
extern rgui_handle_t *rgui;

1
frontend/menu/rgui.c
View File

@ -30,6 +30,7 @@
#include "../../dynamic.h"
#include "../../compat/posix_string.h"
#include "../../gfx/shader_parse.h"
#include "../../performance.h"
#ifdef HAVE_OPENGL
#include "../../gfx/gl_common.h"