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| |
| #include "qwinrtplayerrenderercontrol.h" |
| |
| #include <QtCore/qfunctions_winrt.h> |
| #include <QtCore/QGlobalStatic> |
| #include <QtMultimedia/QAbstractVideoSurface> |
| #include <QtMultimedia/QVideoSurfaceFormat> |
| #include <QtGui/QGuiApplication> |
| #include <QtGui/QOpenGLTexture> |
| #include <QtGui/QOpenGLContext> |
| |
| #define EGL_EGLEXT_PROTOTYPES |
| #include <EGL/egl.h> |
| #include <EGL/eglext.h> |
| |
| #include <d3d11.h> |
| #include <mfapi.h> |
| #include <mfmediaengine.h> |
| #include <wrl.h> |
| using namespace Microsoft::WRL; |
| |
| QT_BEGIN_NAMESPACE |
| |
| template <typename T> |
| class D3DDeviceLocker |
| { |
| public: |
| D3DDeviceLocker(IMFDXGIDeviceManager *manager, HANDLE deviceHandle, T **device) |
| : m_manager(manager), m_deviceHandle(deviceHandle) |
| { |
| HRESULT hr = m_manager->LockDevice(m_deviceHandle, IID_PPV_ARGS(device), TRUE); |
| if (FAILED(hr)) |
| qErrnoWarning(hr, "Failed to lock the D3D device"); |
| } |
| |
| ~D3DDeviceLocker() |
| { |
| HRESULT hr = m_manager->UnlockDevice(m_deviceHandle, FALSE); |
| if (FAILED(hr)) |
| qErrnoWarning(hr, "Failed to unlock the D3D device"); |
| } |
| |
| private: |
| IMFDXGIDeviceManager *m_manager; |
| HANDLE m_deviceHandle; |
| }; |
| |
| class QWinRTPlayerRendererControlPrivate |
| { |
| public: |
| ComPtr<IMFMediaEngineEx> engine; |
| ComPtr<IMFDXGIDeviceManager> manager; |
| quint32 resetToken; |
| HANDLE deviceHandle; |
| }; |
| |
| QWinRTPlayerRendererControl::QWinRTPlayerRendererControl(IMFMediaEngineEx *engine, IMFDXGIDeviceManager *manager, quint32 resetToken, QObject *parent) |
| : QWinRTAbstractVideoRendererControl(QSize(), parent), d_ptr(new QWinRTPlayerRendererControlPrivate) |
| { |
| Q_D(QWinRTPlayerRendererControl); |
| |
| d->engine = engine; |
| d->manager = manager; |
| d->resetToken = resetToken; |
| d->deviceHandle = nullptr; |
| } |
| |
| QWinRTPlayerRendererControl::~QWinRTPlayerRendererControl() |
| { |
| shutdown(); |
| } |
| |
| bool QWinRTPlayerRendererControl::ensureReady() |
| { |
| Q_D(QWinRTPlayerRendererControl); |
| |
| HRESULT hr; |
| hr = d->manager->TestDevice(d->deviceHandle); |
| if (hr == MF_E_DXGI_NEW_VIDEO_DEVICE || FAILED(hr)) { |
| d->manager->CloseDeviceHandle(d->deviceHandle); |
| |
| hr = d->manager->ResetDevice(d3dDevice(), d->resetToken); |
| RETURN_FALSE_IF_FAILED("Failed to reset the DXGI manager device"); |
| |
| hr = d->manager->OpenDeviceHandle(&d->deviceHandle); |
| RETURN_FALSE_IF_FAILED("Failed to open device handle"); |
| } |
| |
| return SUCCEEDED(hr); |
| } |
| |
| bool QWinRTPlayerRendererControl::render(ID3D11Texture2D *texture) |
| { |
| Q_D(QWinRTPlayerRendererControl); |
| |
| if (!ensureReady()) |
| return false; |
| |
| HRESULT hr; |
| LONGLONG ts; |
| hr = d->engine->OnVideoStreamTick(&ts); |
| RETURN_FALSE_IF_FAILED("Failed to obtain video stream tick"); |
| if (hr == S_FALSE) // Frame not available, nothing to do |
| return false; |
| |
| ComPtr<ID3D11Device> device; |
| D3DDeviceLocker<ID3D11Device> locker(d->manager.Get(), d->deviceHandle, device.GetAddressOf()); |
| |
| MFVideoNormalizedRect sourceRect = { 0, 0, 1, 1 }; |
| const QSize frameSize = size(); |
| RECT destRect = { 0, 0, frameSize.width(), frameSize.height() }; |
| MFARGB borderColor = { 255, 255, 255, 255 }; |
| hr = d->engine->TransferVideoFrame(texture, &sourceRect, &destRect, &borderColor); |
| RETURN_FALSE_IF_FAILED("Failed to transfer video frame to DXGI surface"); |
| return true; |
| } |
| |
| QT_END_NAMESPACE |