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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include <QtCore/qt_windows.h>
#include "qwindowsdirect2dcontext.h"
#include "qwindowsdirect2dhelpers.h"
#include "qwindowsdirect2dintegration.h"
#include <d3d11_1.h>
#include <d2d1_1.h>
#include <d2d1_1helper.h>
#include <dxgi1_2.h>
#include <wrl.h>
#include <dwrite.h>
using Microsoft::WRL::ComPtr;
QT_BEGIN_NAMESPACE
class QWindowsDirect2DContextPrivate
{
public:
bool init()
{
HRESULT hr;
D3D_FEATURE_LEVEL level;
D3D_DRIVER_TYPE typeAttempts[] = {
D3D_DRIVER_TYPE_HARDWARE,
D3D_DRIVER_TYPE_WARP
};
const int ntypes = int(sizeof(typeAttempts) / sizeof(typeAttempts[0]));
for (int i = 0; i < ntypes; i++) {
hr = D3D11CreateDevice(nullptr,
typeAttempts[i],
nullptr,
D3D11_CREATE_DEVICE_SINGLETHREADED | D3D11_CREATE_DEVICE_BGRA_SUPPORT,
nullptr,
0,
D3D11_SDK_VERSION,
&d3dDevice,
&level,
&d3dDeviceContext);
if (SUCCEEDED(hr))
break;
}
if (FAILED(hr)) {
qWarning("%s: Could not create Direct3D Device: %#lx", __FUNCTION__, hr);
return false;
}
ComPtr<IDXGIDevice1> dxgiDevice;
ComPtr<IDXGIAdapter> dxgiAdapter;
hr = d3dDevice.As(&dxgiDevice);
if (FAILED(hr)) {
qWarning("%s: DXGI Device interface query failed on D3D Device: %#lx", __FUNCTION__, hr);
return false;
}
// Ensure that DXGI doesn't queue more than one frame at a time.
dxgiDevice->SetMaximumFrameLatency(1);
hr = dxgiDevice->GetAdapter(&dxgiAdapter);
if (FAILED(hr)) {
qWarning("%s: Failed to probe DXGI Device for parent DXGI Adapter: %#lx", __FUNCTION__, hr);
return false;
}
hr = dxgiAdapter->GetParent(IID_PPV_ARGS(&dxgiFactory));
if (FAILED(hr)) {
qWarning("%s: Failed to probe DXGI Adapter for parent DXGI Factory: %#lx", __FUNCTION__, hr);
return false;
}
D2D1_FACTORY_OPTIONS options = {};
#ifdef QT_D2D_DEBUG_OUTPUT
qDebug("Turning on Direct2D debugging messages");
options.debugLevel = D2D1_DEBUG_LEVEL_INFORMATION;
#endif // QT_D2D_DEBUG_OUTPUT
hr = D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED, options, d2dFactory.GetAddressOf());
if (FAILED(hr)) {
qWarning("%s: Could not create Direct2D Factory: %#lx", __FUNCTION__, hr);
return false;
}
hr = d2dFactory->CreateDevice(dxgiDevice.Get(), &d2dDevice);
if (FAILED(hr)) {
qWarning("%s: Could not create D2D Device: %#lx", __FUNCTION__, hr);
return false;
}
hr = DWriteCreateFactory(DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory),
static_cast<IUnknown **>(&directWriteFactory));
if (FAILED(hr)) {
qWarning("%s: Could not create DirectWrite factory: %#lx", __FUNCTION__, hr);
return false;
}
hr = directWriteFactory->GetGdiInterop(&directWriteGdiInterop);
if (FAILED(hr)) {
qWarning("%s: Could not create DirectWrite GDI Interop: %#lx", __FUNCTION__, hr);
return false;
}
return true;
}
ComPtr<ID3D11Device> d3dDevice;
ComPtr<ID2D1Factory1> d2dFactory;
ComPtr<ID2D1Device> d2dDevice;
ComPtr<IDXGIFactory2> dxgiFactory;
ComPtr<ID3D11DeviceContext> d3dDeviceContext;
ComPtr<IDWriteFactory> directWriteFactory;
ComPtr<IDWriteGdiInterop> directWriteGdiInterop;
};
QWindowsDirect2DContext::QWindowsDirect2DContext()
: d_ptr(new QWindowsDirect2DContextPrivate)
{
}
QWindowsDirect2DContext::~QWindowsDirect2DContext() = default;
bool QWindowsDirect2DContext::init()
{
Q_D(QWindowsDirect2DContext);
return d->init();
}
QWindowsDirect2DContext *QWindowsDirect2DContext::instance()
{
return QWindowsDirect2DIntegration::instance()->direct2DContext();
}
ID3D11Device *QWindowsDirect2DContext::d3dDevice() const
{
Q_D(const QWindowsDirect2DContext);
return d->d3dDevice.Get();
}
ID2D1Device *QWindowsDirect2DContext::d2dDevice() const
{
Q_D(const QWindowsDirect2DContext);
return d->d2dDevice.Get();
}
ID2D1Factory1 *QWindowsDirect2DContext::d2dFactory() const
{
Q_D(const QWindowsDirect2DContext);
return d->d2dFactory.Get();
}
IDXGIFactory2 *QWindowsDirect2DContext::dxgiFactory() const
{
Q_D(const QWindowsDirect2DContext);
return d->dxgiFactory.Get();
}
ID3D11DeviceContext *QWindowsDirect2DContext::d3dDeviceContext() const
{
Q_D(const QWindowsDirect2DContext);
return d->d3dDeviceContext.Get();
}
IDWriteFactory *QWindowsDirect2DContext::dwriteFactory() const
{
Q_D(const QWindowsDirect2DContext);
return d->directWriteFactory.Get();
}
IDWriteGdiInterop *QWindowsDirect2DContext::dwriteGdiInterop() const
{
Q_D(const QWindowsDirect2DContext);
return d->directWriteGdiInterop.Get();
}
QT_END_NAMESPACE
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