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d31bed8b79
The new implementation has 3 options: SyncGpuMaxDistance SyncGpuMinDistance SyncGpuOverclock The MaxDistance controlls how many CPU cycles the CPU is allowed to be in front of the GPU. Too low values will slow down extremly, too high values are as unsynchronized and half of the games will crash. The -MinDistance (negative) set how many cycles the GPU is allowed to be in front of the CPU. As we are used to emulate an infinitiv fast GPU, this may be set to any high (negative) number. The last parameter is to hack a faster (>1.0) or slower(<1.0) GPU. As we don't emulate GPU timing very well (eg skip the timings of the pixel stage completely), an overclock factor of ~0.5 is often much more accurate than 1.0
53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include "Common/CommonTypes.h"
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#include "VideoCommon/VideoBackendBase.h"
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class PointerWrap;
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#define FIFO_SIZE (2*1024*1024)
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extern bool g_bSkipCurrentFrame;
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// This could be in SCoreStartupParameter, but it depends on multiple settings
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// and can change at runtime.
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extern bool g_use_deterministic_gpu_thread;
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extern std::atomic<u8*> g_video_buffer_write_ptr_xthread;
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void Fifo_Init();
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void Fifo_Shutdown();
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void Fifo_DoState(PointerWrap &f);
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void Fifo_PauseAndLock(bool doLock, bool unpauseOnUnlock);
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void Fifo_UpdateWantDeterminism(bool want);
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// Used for diagnostics.
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enum SyncGPUReason
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{
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SYNC_GPU_OTHER,
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SYNC_GPU_WRAPAROUND,
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SYNC_GPU_EFB_POKE,
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SYNC_GPU_PERFQUERY,
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SYNC_GPU_BBOX,
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SYNC_GPU_SWAP,
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SYNC_GPU_AUX_SPACE,
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};
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// In g_use_deterministic_gpu_thread mode, waits for the GPU to be done with pending work.
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void SyncGPU(SyncGPUReason reason, bool may_move_read_ptr = true);
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void PushFifoAuxBuffer(void* ptr, size_t size);
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void* PopFifoAuxBuffer(size_t size);
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void FlushGpu();
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void RunGpu();
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void GpuMaySleep();
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void RunGpuLoop();
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void ExitGpuLoop();
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void EmulatorState(bool running);
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bool AtBreakpoint();
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void ResetVideoBuffer();
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void Fifo_SetRendering(bool bEnabled);
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int Fifo_Update(int ticks);
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