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desmume
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cli: avoid some overhead with DISPLAY_FPS defined 

Avoid a call to SDL_GetTicks() which in turn call the
gettimeofday() syscall when DISPLAY_FPS() is defined.
This commit is contained in:
riccardom 2011-03-09 22:07:44 +00:00
parent 18349689c8
commit 3713c1ba7f
1 changed files with 7 additions and 4 deletions
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13
desmume/src/cli/main.cpp
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@ -494,7 +494,6 @@ int main(int argc, char ** argv) {
u32 fps_timing = 0; u32 fps_timing = 0;
u32 fps_frame_counter = 0; u32 fps_frame_counter = 0;
u32 fps_previous_time = 0; u32 fps_previous_time = 0;
u32 fps_temp_time;
#endif #endif
#ifdef INCLUDE_OPENGL_2D #ifdef INCLUDE_OPENGL_2D
@ -730,8 +729,13 @@ int main(int argc, char ** argv) {
desmume_cycle(&ctrls_cfg); desmume_cycle(&ctrls_cfg);
} }
if ( !my_config.disable_limiter && !ctrls_cfg.boost) { #ifdef DISPLAY_FPS
int now = SDL_GetTicks(); int now = SDL_GetTicks();
#endif
if ( !my_config.disable_limiter && !ctrls_cfg.boost) {
#ifndef DISPLAY_FPS
int now = SDL_GetTicks();
#endif
int delay = (limiter_tick0 + limiter_frame_counter*1000/FPS_LIMITER_FPS) - now; int delay = (limiter_tick0 + limiter_frame_counter*1000/FPS_LIMITER_FPS) - now;
if (delay > 0) { if (delay > 0) {
SDL_Delay(delay); SDL_Delay(delay);
@ -745,9 +749,8 @@ int main(int argc, char ** argv) {
#ifdef DISPLAY_FPS #ifdef DISPLAY_FPS
fps_frame_counter += 1; fps_frame_counter += 1;
fps_temp_time = SDL_GetTicks(); fps_timing += now - fps_previous_time;
fps_timing += fps_temp_time - fps_previous_time; fps_previous_time = now;
fps_previous_time = fps_temp_time;
if ( fps_frame_counter == NUM_FRAMES_TO_TIME) { if ( fps_frame_counter == NUM_FRAMES_TO_TIME) {
char win_title[20]; char win_title[20];