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bring back the old frame timing method (if vsync != 2)

This commit is contained in:
fgsfds 2020-05-19 01:32:49 +03:00
parent 59913a9beb
commit 6a79a9af99
1 changed files with 7 additions and 10 deletions
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17
src/pc/gfx/gfx_sdl2.c
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@ -189,8 +189,14 @@ static void gfx_sdl_init(void) {
} }
static void gfx_sdl_main_loop(void (*run_one_game_iter)(void)) { static void gfx_sdl_main_loop(void (*run_one_game_iter)(void)) {
while (1) Uint32 t;
while (1) {
t = SDL_GetTicks();
run_one_game_iter(); run_one_game_iter();
t = SDL_GetTicks() - t;
if (t < FRAME_TIME && configWindow.vsync <= 1)
SDL_Delay(FRAME_TIME - t);
}
} }
static void gfx_sdl_get_dimensions(uint32_t *width, uint32_t *height) { static void gfx_sdl_get_dimensions(uint32_t *width, uint32_t *height) {
@ -262,16 +268,7 @@ static bool gfx_sdl_start_frame(void) {
return true; return true;
} }
static void sync_framerate_with_timer(void) {
Uint32 elapsed = SDL_GetTicks() - frame_start;
if (elapsed < FRAME_TIME)
SDL_Delay(FRAME_TIME - elapsed);
}
static void gfx_sdl_swap_buffers_begin(void) { static void gfx_sdl_swap_buffers_begin(void) {
// if vsync is set to 2, depend only on SwapInterval to sync
if (configWindow.vsync <= 1)
sync_framerate_with_timer();
SDL_GL_SwapWindow(wnd); SDL_GL_SwapWindow(wnd);
} }