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Added FPS counter (thanks Wiseguy)

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Reonu
2021-05-03 21:56:16 +01:00
parent e6539d63eb
commit 102b266ffa
1 changed files with 40 additions and 0 deletions
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40
src/game/hud.c
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@@ -21,6 +21,46 @@
* cannon reticle, and the unused keys.
**/
// ------------- FPS COUNTER ---------------
// To use it, call print_fps(x,y); every frame.
#define FRAMETIME_COUNT 30
OSTime frameTimes[FRAMETIME_COUNT];
u8 curFrameTimeIndex = 0;
#include "PR/os_convert.h"
u32 get_clockspeed(void);
// Call once per frame
f32 calculate_and_update_fps()
{
OSTime newTime = osGetTime();
OSTime oldTime = frameTimes[curFrameTimeIndex];
frameTimes[curFrameTimeIndex] = newTime;
curFrameTimeIndex++;
if (curFrameTimeIndex >= FRAMETIME_COUNT)
curFrameTimeIndex = 0;
return ((f32)FRAMETIME_COUNT * 1000000.0f) / (s32)OS_CYCLES_TO_USEC(newTime - oldTime);
// return ((f32)FRAMETIME_COUNT * 1000000.0f) / (s32)OS_CYCLES_TO_USEC(newTime - oldTime);
}
void print_fps(s32 x, s32 y)
{
f32 fps = calculate_and_update_fps();
char text[10];
sprintf(text, "%2.2f", fps);
print_text(x, y, text);
}
// ------------ END OF FPS COUNER -----------------
struct PowerMeterHUD {
s8 animation;
s16 x;