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KIT!
91a9f9ad25
* Initial working cmake version Code style changes according to CLion suggestions Changed logging to use template instead of macros --------- Co-authored-by: asesidaa <1061472754@qq.com> * Reformat everything, updated readme for MSVC * Warnings annoy me deeply * Update artifact export * Simplifying file hierarchy Build result will now be in dist
67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
#include "helpers.h"
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#include "patches.h"
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namespace patches::FpsLimiter {
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/*
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* Reference: https://github.com/teknogods/OpenParrot/blob/master/OpenParrot/src/Functions/FpsLimiter.cpp
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*/
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static LARGE_INTEGER PerformanceCount1;
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static LARGE_INTEGER PerformanceCount2;
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static bool bOnce1 = false;
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static double targetFrameTime = 1000.0 / 60.0;
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static double t = 0.0;
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static u32 i = 0;
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void
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Init (const float fpsLimit) {
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if (fpsLimit > 0) LogMessage (LogLevel::INFO, "Init Fps Limiter");
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targetFrameTime = 1000.0 / fpsLimit;
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}
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void
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Update () {
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if (!bOnce1) {
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bOnce1 = true;
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QueryPerformanceCounter (&PerformanceCount1);
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PerformanceCount1.QuadPart = PerformanceCount1.QuadPart >> i;
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}
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while (true) {
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QueryPerformanceCounter (&PerformanceCount2);
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if (t == 0.0) {
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LARGE_INTEGER PerformanceCount3;
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static bool bOnce2 = false;
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if (!bOnce2) {
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bOnce2 = true;
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QueryPerformanceFrequency (&PerformanceCount3);
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i = 0;
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t = 1000.0 / static_cast<double> (PerformanceCount3.QuadPart);
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auto v = t * 2147483648.0;
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if (60000.0 > v) {
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while (true) {
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++i;
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v *= 2.0;
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t *= 2.0;
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if (60000.0 <= v) break;
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}
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}
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}
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SleepEx (0, 1);
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break;
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}
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if ((static_cast<double> ((PerformanceCount2.QuadPart >> i) - PerformanceCount1.QuadPart) * t) >= targetFrameTime) break;
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SleepEx (0, 1);
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}
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QueryPerformanceCounter (&PerformanceCount2);
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PerformanceCount1.QuadPart = PerformanceCount2.QuadPart >> i;
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}
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} // namespace patches::FpsLimiter
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