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Use QueryPerformanceCounter on Win32 to get usec.

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This commit is contained in:
Themaister 2013-02-05 13:03:16 +01:00
parent 1df86a722a
commit c692e9ff92
1 changed files with 11 additions and 8 deletions
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19
performance.c
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@ -17,10 +17,6 @@
#include "performance.h" #include "performance.h"
#include "general.h" #include "general.h"
#if defined(_MSC_VER) && !defined(_XBOX)
#pragma comment(lib, "winmm")
#endif
#ifdef ANDROID #ifdef ANDROID
#include "android/native/jni/cpufeatures.h" #include "android/native/jni/cpufeatures.h"
#endif #endif
@ -33,8 +29,6 @@
#ifndef _PPU_INTRINSICS_H #ifndef _PPU_INTRINSICS_H
#include <ppu_intrinsics.h> #include <ppu_intrinsics.h>
#endif #endif
#elif defined(_WIN32) && !defined(_XBOX)
#include <mmsystem.h>
#elif defined(_XBOX360) #elif defined(_XBOX360)
#include <PPCIntrinsics.h> #include <PPCIntrinsics.h>
#elif defined(_POSIX_MONOTONIC_CLOCK) || defined(ANDROID) #elif defined(_POSIX_MONOTONIC_CLOCK) || defined(ANDROID)
@ -120,10 +114,19 @@ rarch_perf_tick_t rarch_get_perf_counter(void)
rarch_time_t rarch_get_time_usec(void) rarch_time_t rarch_get_time_usec(void)
{ {
#if defined(_WIN32) && !defined(_XBOX360) #if defined(_WIN32) && !defined(_XBOX)
return timeGetTime() * INT64_C(1000); // FIXME: Need more accurate measurement, i.e. QueryPerformanceCounter. static LARGE_INTEGER freq;
if (!freq.QuadPart && !QueryPerformanceFrequency(&freq)) // Frequency is guaranteed to not change.
return 0;
LARGE_INTEGER count;
if (!QueryPerformanceCounter(&count))
return 0;
return count.QuadPart * 1000000 / freq.QuadPart;
#elif defined(_XBOX360) #elif defined(_XBOX360)
return GetTickCount() * INT64_C(1000); // FIXME: Need more accurate measurement. return GetTickCount() * INT64_C(1000); // FIXME: Need more accurate measurement.
#elif defined(_XBOX)
return timeGetTime() * INT64_C(1000); // FIXME: Need more accurate measurement, i.e. QueryPerformanceCounter.
#elif defined(__CELLOS_LV2__) #elif defined(__CELLOS_LV2__)
return sys_time_get_system_time(); return sys_time_get_system_time();
#elif defined(GEKKO) #elif defined(GEKKO)