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#include "UnityPrefix.h"
#if ENABLE_PROFILER
#include "GPUProfiler.h"
#include "Runtime/GfxDevice/GfxDevice.h"
#include "Runtime/GfxDevice/GfxTimerQuery.h"
#include "ProfilerImpl.h"
#include "ProfilerFrameData.h"
PROFILER_INFORMATION(gBeginQueriesProf, "GPUProfiler.BeginQueries", kProfilerOverhead)
PROFILER_INFORMATION(gEndQueriesProf, "GPUProfiler.EndQueries", kProfilerOverhead)
void GPUProfiler::GPUTimeSample()
{
// GPU samples should only be added on the main thread.
DebugAssert (Thread::CurrentThreadIsMainThread ());
UnityProfilerPerThread* prof = UnityProfilerPerThread::ms_InstanceTLS;
DebugAssert(prof);
if (!prof->GetIsActive() || !gGraphicsCaps.hasTimerQuery || gGraphicsCaps.buggyTimerQuery)
return;
GfxTimerQuery* timer = ProfilerFrameData::AllocTimerQuery();
timer->Measure();
ProfilerData::GPUTime sample = {prof->GetActiveSampleIndex(), timer, 0xFFFFFFFF, g_CurrentGPUSection};
prof->AddGPUSample(sample);
}
void GPUProfiler::BeginFrame()
{
PROFILER_AUTO(gBeginQueriesProf, NULL);
GetGfxDevice().BeginTimerQueries();
}
void GPUProfiler::EndFrame()
{
GPU_TIMESTAMP();
PROFILER_AUTO(gEndQueriesProf, NULL);
GetGfxDevice().EndTimerQueries();
}
bool GPUProfiler::CollectGPUTime( dynamic_array<ProfilerData::GPUTime>& gpuSamples, bool wait )
{
if(!gGraphicsCaps.hasTimerQuery)
return false;
UInt32 flags = wait ? GfxTimerQuery::kWaitAll : GfxTimerQuery::kWaitRenderThread;
// Gather query times
for(int i = 0; i < gpuSamples.size(); i++)
{
ProfilerData::GPUTime& sample = gpuSamples[i];
if (sample.timerQuery != NULL)
{
ProfileTimeFormat elapsed = sample.timerQuery->GetElapsed(flags);
sample.gpuTimeInMicroSec = elapsed == kInvalidProfileTime? 0xFFFFFFFF: elapsed/1000;
if (wait || sample.gpuTimeInMicroSec != 0xFFFFFFFF)
{
// Recycle query object
ProfilerFrameData::ReleaseTimerQuery(sample.timerQuery);
sample.timerQuery = NULL;
}
}
}
return true;
}
int GPUProfiler::ComputeGPUTime( dynamic_array<ProfilerData::GPUTime>& gpuSamples )
{
if (!CollectGPUTime(gpuSamples, true))
return 0;
// Why is the first sample invalid?
if (!gpuSamples.empty())
gpuSamples[0].gpuTimeInMicroSec = 0;
int totalTimeMicroSec = 0;
for(int i = 0; i < gpuSamples.size(); i++)
{
totalTimeMicroSec += gpuSamples[i].gpuTimeInMicroSec;
}
return totalTimeMicroSec;
}
void GPUProfiler::ClearTimerQueries ( dynamic_array<ProfilerData::GPUTime>& gpuSamples )
{
for(int i = 0; i < gpuSamples.size(); i++)
{
ProfilerData::GPUTime& sample = gpuSamples[i];
if (sample.timerQuery != NULL)
{
// Recycle query object
ProfilerFrameData::ReleaseTimerQuery(sample.timerQuery);
sample.timerQuery = NULL;
}
}
}
#endif // ENABLE_PROFILER
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