HRESULT STDMETHODCALLTYPE D3D11SwapPresentHook(IDXGISwapChain *swap, UINT syncInterval, UINT flags)
{
if(lpCurrentSwap == NULL && !bTargetAcquired)
{
lpCurrentSwap = swap;
SetupD3D11(swap);
bTargetAcquired = true;
}
if(lpCurrentSwap == swap)
{
ID3D11Device *device = NULL;
HRESULT chi;
if(SUCCEEDED(chi = swap->GetDevice(__uuidof(ID3D11Device), (void**)&device)))
{
if(!lpCurrentDevice)
{
lpCurrentDevice = device;
/*FARPROC curRelease = GetVTable(device, (8/4));
if(curRelease != newD3D11Release)
{
oldD3D11Release = curRelease;
newD3D11Release = (FARPROC)DeviceReleaseHook;
SetVTable(device, (8/4), newD3D11Release);
}*/
}
ID3D11DeviceContext *context;
device->GetImmediateContext(&context);
if(bCapturing && bStopRequested)
{
ClearD3D11Data();
bStopRequested = false;
}
if(!bHasTextures && bCapturing)
{
if(dxgiFormat)
{
if(!hwndReceiver)
hwndReceiver = FindWindow(RECEIVER_WINDOWCLASS, NULL);
if(hwndReceiver)
{
BOOL bSuccess = DoD3D11Hook(device);
if(bSuccess)
{
d3d11CaptureInfo.mapID = InitializeSharedMemoryGPUCapture(&texData);
if(!d3d11CaptureInfo.mapID)
{
RUNONCE logOutput << "SwapPresentHook: creation of shared memory failed" << endl;
bSuccess = false;
}
}
if(bSuccess)
bSuccess = IsWindow(hwndReceiver);
if(bSuccess)
{
bHasTextures = true;
d3d11CaptureInfo.captureType = CAPTURETYPE_SHAREDTEX;
d3d11CaptureInfo.hwndSender = hwndSender;
d3d11CaptureInfo.bFlip = FALSE;
texData->texHandles[0] = sharedHandles[0];
texData->texHandles[1] = sharedHandles[1];
PostMessage(hwndReceiver, RECEIVER_NEWCAPTURE, 0, (LPARAM)&d3d11CaptureInfo);
logOutput << "DoD3D11Hook: success";
}
else
{
ClearD3D11Data();
}
}
}
}
if(bHasTextures)
{
LONGLONG frameTime;
if(bCapturing)
{
if(texData)
{
if(frameTime = texData->frameTime)
{
LONGLONG timeVal = OSGetTimeMicroseconds();
LONGLONG timeElapsed = timeVal-lastTime;
if(timeElapsed >= frameTime)
{
lastTime += frameTime;
if(timeElapsed > frameTime*2)
lastTime = timeVal;
DWORD nextCapture = curCapture == 0 ? 1 : 0;
ID3D11Resource *backBuffer = NULL;
if(SUCCEEDED(swap->GetBuffer(0, IID_ID3D11Resource, (void**)&backBuffer)))
{
if(bIsMultisampled)
context->ResolveSubresource(copyTextureGame, 0, backBuffer, 0, dxgiFormat);
else
context->CopyResource(copyTextureGame, backBuffer);
ID3D10Texture2D *outputTexture = NULL;
int lastRendered = -1;
if(keyedMutexes[curCapture]->AcquireSync(0, 0) == WAIT_OBJECT_0)
lastRendered = (int)curCapture;
else if(keyedMutexes[nextCapture]->AcquireSync(0, 0) == WAIT_OBJECT_0)
lastRendered = (int)nextCapture;
if(lastRendered != -1)
{
shareDevice->CopyResource(sharedTextures[lastRendered], copyTextureIntermediary);
keyedMutexes[lastRendered]->ReleaseSync(0);
}
texData->lastRendered = lastRendered;
backBuffer->Release();
}
curCapture = nextCapture;
}
}
}
}
else
ClearD3D11Data();
}
device->Release();
context->Release();
}
}
gi11swapPresent.Unhook();
HRESULT hRes = swap->Present(syncInterval, flags);
gi11swapPresent.Rehook();
return hRes;
}
void DoD3D11Capture(IDXGISwapChain *swap)
{
ID3D11Device *device = NULL;
HRESULT chi;
if(SUCCEEDED(chi = swap->GetDevice(__uuidof(ID3D11Device), (void**)&device)))
{
if(!lpCurrentDevice)
{
lpCurrentDevice = device;
/*FARPROC curRelease = GetVTable(device, (8/4));
if(curRelease != newD3D11Release)
{
oldD3D11Release = curRelease;
newD3D11Release = (FARPROC)DeviceReleaseHook;
SetVTable(device, (8/4), newD3D11Release);
}*/
}
ID3D11DeviceContext *context;
device->GetImmediateContext(&context);
if(bCapturing && bStopRequested)
{
ClearD3D11Data();
bCapturing = false;
bStopRequested = false;
}
if(!bCapturing && WaitForSingleObject(hSignalRestart, 0) == WAIT_OBJECT_0)
{
hwndOBS = FindWindow(OBS_WINDOW_CLASS, NULL);
if(hwndOBS)
bCapturing = true;
}
if(!bHasTextures && bCapturing)
{
if(dxgiFormat && hwndOBS)
{
BOOL bSuccess = DoD3D11Hook(device);
if(bSuccess)
{
d3d11CaptureInfo.mapID = InitializeSharedMemoryGPUCapture(&texData);
if(!d3d11CaptureInfo.mapID)
{
RUNONCE logOutput << "SwapPresentHook: creation of shared memory failed" << endl;
bSuccess = false;
}
}
if(bSuccess)
{
bHasTextures = true;
d3d11CaptureInfo.captureType = CAPTURETYPE_SHAREDTEX;
d3d11CaptureInfo.bFlip = FALSE;
texData->texHandle = (DWORD)sharedHandle;
memcpy(infoMem, &d3d11CaptureInfo, sizeof(CaptureInfo));
SetEvent(hSignalReady);
logOutput << "DoD3D11Hook: success" << endl;
}
else
{
ClearD3D11Data();
}
}
}
if(bHasTextures)
{
LONGLONG timeVal = OSGetTimeMicroseconds();
//check keep alive state, dumb but effective
if(bCapturing)
{
if((timeVal-keepAliveTime) > 3000000)
{
HANDLE hKeepAlive = OpenEvent(EVENT_ALL_ACCESS, FALSE, strKeepAlive.c_str());
if (hKeepAlive) {
CloseHandle(hKeepAlive);
} else {
ClearD3D11Data();
bCapturing = false;
}
keepAliveTime = timeVal;
}
}
LONGLONG frameTime;
if(bCapturing)
{
if(texData)
{
if(frameTime = texData->frameTime)
{
LONGLONG timeElapsed = timeVal-lastTime;
if(timeElapsed >= frameTime)
{
if(!IsWindow(hwndOBS))
{
hwndOBS = NULL;
bStopRequested = true;
}
if(WaitForSingleObject(hSignalEnd, 0) == WAIT_OBJECT_0)
bStopRequested = true;
lastTime += frameTime;
if(timeElapsed > frameTime*2)
lastTime = timeVal;
DWORD nextCapture = curCapture == 0 ? 1 : 0;
ID3D11Resource *backBuffer = NULL;
if(SUCCEEDED(swap->GetBuffer(0, IID_ID3D11Resource, (void**)&backBuffer)))
{
if(bIsMultisampled)
context->ResolveSubresource(copyTextureGame, 0, backBuffer, 0, dxgiFormat);
else
context->CopyResource(copyTextureGame, backBuffer);
backBuffer->Release();
}
curCapture = nextCapture;
}
}
}
}
else
ClearD3D11Data();
}
device->Release();
context->Release();
}
}
