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Added compilation flag to disable timekeeping for frontends that handle fps keeping on their own

This commit is contained in:
Lior Halphon 2017-10-12 19:24:12 +03:00
parent a50aa2486b
commit 7c0ad24175
1 changed files with 12 additions and 4 deletions
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16
Core/timing.c
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@ -6,6 +6,7 @@
#include <sys/time.h> #include <sys/time.h>
#endif #endif
#ifdef DISABLE_TIMEKEEPING
static int64_t get_nanoseconds(void) static int64_t get_nanoseconds(void)
{ {
#ifndef _WIN32 #ifndef _WIN32
@ -19,7 +20,6 @@ static int64_t get_nanoseconds(void)
#endif #endif
} }
#ifndef __LIBRETRO__
static void nsleep(uint64_t nanoseconds) static void nsleep(uint64_t nanoseconds)
{ {
#ifndef _WIN32 #ifndef _WIN32
@ -35,7 +35,6 @@ static void nsleep(uint64_t nanoseconds)
CloseHandle(timer); CloseHandle(timer);
#endif #endif
} }
#endif
bool GB_timing_sync_turbo(GB_gameboy_t *gb) bool GB_timing_sync_turbo(GB_gameboy_t *gb)
{ {
@ -61,9 +60,7 @@ void GB_timing_sync(GB_gameboy_t *gb)
uint64_t target_nanoseconds = gb->cycles_since_last_sync * FRAME_LENGTH / LCDC_PERIOD; uint64_t target_nanoseconds = gb->cycles_since_last_sync * FRAME_LENGTH / LCDC_PERIOD;
int64_t nanoseconds = get_nanoseconds(); int64_t nanoseconds = get_nanoseconds();
if (labs((signed long)(nanoseconds - gb->last_sync)) < target_nanoseconds ) { if (labs((signed long)(nanoseconds - gb->last_sync)) < target_nanoseconds ) {
#ifndef __LIBRETRO__
nsleep(target_nanoseconds + gb->last_sync - nanoseconds); nsleep(target_nanoseconds + gb->last_sync - nanoseconds);
#endif
gb->last_sync += target_nanoseconds; gb->last_sync += target_nanoseconds;
} }
else { else {
@ -72,7 +69,18 @@ void GB_timing_sync(GB_gameboy_t *gb)
gb->cycles_since_last_sync = 0; gb->cycles_since_last_sync = 0;
} }
#else
bool GB_timing_sync_turbo(GB_gameboy_t *gb)
{
return false;
}
void GB_timing_sync(GB_gameboy_t *gb)
{
}
#endif
static void GB_ir_run(GB_gameboy_t *gb) static void GB_ir_run(GB_gameboy_t *gb)
{ {
if (gb->ir_queue_length == 0) return; if (gb->ir_queue_length == 0) return;