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Convert ticks to 64-bit, added nanosecond precision to the API

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Fixes https://github.com/libsdl-org/SDL/issues/5512
Fixes https://github.com/libsdl-org/SDL/issues/6731
This commit is contained in:
Sam Lantinga
2022-12-02 01:17:17 -08:00
parent 764b899a13
commit 8121bbd083
96 changed files with 938 additions and 1243 deletions
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51
src/timer/psp/SDL_systimer.c
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@@ -28,56 +28,33 @@
#include <sys/time.h>
#include <pspthreadman.h>
static struct timeval start;
static SDL_bool ticks_started = SDL_FALSE;
void SDL_TicksInit(void)
{
if (ticks_started) {
return;
}
ticks_started = SDL_TRUE;
gettimeofday(&start, NULL);
}
void SDL_TicksQuit(void)
{
ticks_started = SDL_FALSE;
}
Uint64
SDL_GetTicks64(void)
{
struct timeval now;
if (!ticks_started) {
SDL_TicksInit();
}
gettimeofday(&now, NULL);
return (Uint64)(((Sint64)(now.tv_sec - start.tv_sec) * 1000) + ((now.tv_usec - start.tv_usec) / 1000));
}
Uint64
SDL_GetPerformanceCounter(void)
{
return SDL_GetTicks64();
Uint64 ticks;
struct timeval now;
gettimeofday(&now, NULL);
ticks = now.tv_sec;
ticks *= SDL_US_PER_SECOND;
ticks += now.tv_usec;
return ticks;
}
Uint64
SDL_GetPerformanceFrequency(void)
{
return 1000;
return SDL_US_PER_SECOND;
}
void SDL_Delay(Uint32 ms)
void SDL_DelayNS(Uint64 ns)
{
const Uint32 max_delay = 0xffffffffUL / 1000;
if (ms > max_delay) {
ms = max_delay;
const Uint64 max_delay = 0xffffffff * SDL_NS_PER_US;
if (ns > max_delay) {
ns = max_delay;
}
sceKernelDelayThreadCB(ms * 1000);
sceKernelDelayThreadCB((SceUInt)SDL_NS_TO_US(ns));
}
#endif /* SDL_TIMER_PSP */