HRESULT D3DPresentEngine::CreateD3DSample(IDirect3DSwapChain9 *pSwapChain, IMFSample **ppVideoSample)
{
// Caller holds the object lock.
HRESULT hr = S_OK;
D3DCOLOR clrBlack = D3DCOLOR_ARGB(0xFF, 0x00, 0x00, 0x00);
IDirect3DSurface9* pSurface = NULL;
IMFSample* pSample = NULL;
// Get the back buffer surface.
CHECK_HR(hr = pSwapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &pSurface));
// Fill it with black.
CHECK_HR(hr = m_pDevice->ColorFill(pSurface, NULL, clrBlack));
// Create the sample.
CHECK_HR(hr = MFCreateVideoSampleFromSurface(pSurface, &pSample));
// Return the pointer to the caller.
*ppVideoSample = pSample;
(*ppVideoSample)->AddRef();
done:
SAFE_RELEASE(pSurface);
SAFE_RELEASE(pSample);
return hr;
}
HRESULT D3DPresentEngine::createD3DSample(IDirect3DSwapChain9 *swapChain, IMFSample **videoSample)
{
D3DCOLOR clrBlack = D3DCOLOR_ARGB(0xFF, 0x00, 0x00, 0x00);
IDirect3DSurface9* surface = NULL;
IMFSample* sample = NULL;
// Get the back buffer surface.
HRESULT hr = swapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &surface);
if (FAILED(hr))
goto done;
// Fill it with black.
hr = m_device->ColorFill(surface, NULL, clrBlack);
if (FAILED(hr))
goto done;
hr = MFCreateVideoSampleFromSurface(surface, &sample);
if (FAILED(hr))
goto done;
*videoSample = sample;
(*videoSample)->AddRef();
done:
qt_wmf_safeRelease(&surface);
qt_wmf_safeRelease(&sample);
return hr;
}
HRESULT GDISampleProvider::GetSample(IMFSample** ppSample) const
{
BOOL b = BitBlt(hDest, 0, 0, width, height, hdc, 0, 0, SRCCOPY);
assert(b);
BYTE * pixels;
IMFMediaBufferPtr pBuffer;
HRESULT hr = MFCreateMemoryBuffer(length, &pBuffer);
BITMAPINFOHEADER bi;
bi.biSize = sizeof(BITMAPINFOHEADER);
bi.biWidth = width;
bi.biHeight = height;
bi.biPlanes = 1;
bi.biBitCount = 32;
bi.biCompression = BI_RGB;
bi.biSizeImage = 0;
bi.biXPelsPerMeter = 0;
bi.biYPelsPerMeter = 0;
bi.biClrUsed = 0;
bi.biClrImportant = 0;
if (SUCCEEDED(hr))
hr = pBuffer->Lock(&pixels, nullptr, nullptr);
if (SUCCEEDED(hr))
GetDIBits(hdc, hbDesktop, 0, height, pixels, reinterpret_cast<BITMAPINFO*>(&bi), DIB_RGB_COLORS);
if (SUCCEEDED(hr))
hr = pBuffer->Unlock();
if (SUCCEEDED(hr))
hr = pBuffer->SetCurrentLength(cbWidth * VIDEO_HEIGHT);
if (SUCCEEDED(hr))
hr = MFCreateVideoSampleFromSurface(nullptr, ppSample);
if (SUCCEEDED(hr))
hr = (*ppSample)->AddBuffer(pBuffer);
return hr;
}
// Creates video samples based on a specified media type.
HRESULT D3DPresentEngine::CreateVideoSamples(IMFMediaType *pFormat, VideoSampleList& videoSampleQueue)
{
if (pFormat == NULL)
{
return MF_E_UNEXPECTED;
}
HRESULT hr = S_OK;
D3DFORMAT d3dFormat = D3DFMT_UNKNOWN;
IMFSample *pVideoSample = NULL;
AutoLock lock(m_ObjectLock);
ReleaseResources();
// Helper object for reading the proposed type.
VideoType videoType(pFormat);
// Get some information about the video format.
hr = videoType.GetFrameDimensions(&m_Width, &m_Height);
CHECK_HR(hr, "D3DPresentEngine::CreateVideoSamples VideoType::GetFrameDimensions() failed");
hr = GetAspectRatio(pFormat, m_ArX, m_ArY);
if (FAILED(hr))
{
m_ArX = m_Width;
m_ArY = m_Height;
}
//hr = videoType.GetFourCC((DWORD*)&d3dFormat);
//CHECK_HR(hr, "D3DPresentEngine::CreateVideoSamples VideoType::GetFourCC() failed");
// Morpheus_xx, 2016-08-14: we force a format without alpha channel here, because rendering subtitles with MPC-HC engine expects this format. Actually I can't imagine a video format
// that actually delivers alpha channel information.
d3dFormat = D3DFMT_X8R8G8B8;
for (int i = 0; i < NUM_PRESENTER_BUFFERS; i++)
{
CComPtr<IDirect3DTexture9> texture;
hr = m_pDevice->CreateTexture(m_Width, m_Height, 1, D3DUSAGE_RENDERTARGET, d3dFormat, D3DPOOL_DEFAULT, &texture, NULL);
if (FAILED(hr))
{
Log("D3DPresentEngine::CreateVideoSamples Could not create texture %d. Error 0x%x", i, hr);
break;
}
CComPtr<IDirect3DSurface9> surface;
hr = texture->GetSurfaceLevel(0, &surface);
if (FAILED(hr))
{
Log("D3DPresentEngine::CreateVideoSamples Could not get surface from texture. Error 0x%x", hr);
break;
}
hr = MFCreateVideoSampleFromSurface(surface, &pVideoSample);
if (FAILED(hr))
{
Log("D3DPresentEngine::CreateVideoSamples CreateVideoSampleFromSurface failed: 0x%x", hr);
break;
}
// Add it to the list.
hr = videoSampleQueue.InsertBack(pVideoSample);
if (FAILED(hr))
{
SAFE_RELEASE(pVideoSample);
ReleaseResources();
return hr;
}
SAFE_RELEASE(pVideoSample);
}
return hr;
}
