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// Copyright (C) 2023 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 "qrhid3dhelpers_p.h"
#include <QtCore/private/qsystemlibrary_p.h>
#include <QtCore/private/qsystemerror_p.h>
QT_BEGIN_NAMESPACE
namespace QRhiD3D {
pD3DCompile resolveD3DCompile()
{
for (const wchar_t *libraryName : {L"D3DCompiler_47", L"D3DCompiler_43"}) {
QSystemLibrary library(libraryName);
if (library.load()) {
if (auto symbol = library.resolve("D3DCompile"))
return reinterpret_cast<pD3DCompile>(symbol);
} else {
qWarning("Failed to load D3DCompiler_47/43.dll");
}
}
return nullptr;
}
IDCompositionDevice *createDirectCompositionDevice()
{
QSystemLibrary dcomplib(QStringLiteral("dcomp"));
typedef HRESULT (__stdcall *DCompositionCreateDeviceFuncPtr)(
_In_opt_ IDXGIDevice *dxgiDevice,
_In_ REFIID iid,
_Outptr_ void **dcompositionDevice);
DCompositionCreateDeviceFuncPtr func = reinterpret_cast<DCompositionCreateDeviceFuncPtr>(
dcomplib.resolve("DCompositionCreateDevice"));
if (!func) {
qWarning("Unable to resolve DCompositionCreateDevice, perhaps dcomp.dll is missing?");
return nullptr;
}
IDCompositionDevice *device = nullptr;
HRESULT hr = func(nullptr, __uuidof(IDCompositionDevice), reinterpret_cast<void **>(&device));
if (FAILED(hr)) {
qWarning("Failed to create Direct Composition device: %s",
qPrintable(QSystemError::windowsComString(hr)));
return nullptr;
}
return device;
}
#ifdef QRHI_D3D12_HAS_DXC
std::pair<IDxcCompiler *, IDxcLibrary *> createDxcCompiler()
{
QSystemLibrary dxclib(QStringLiteral("dxcompiler"));
// this will not be in the system library location, hence onlySystemDirectory==false
if (!dxclib.load(false)) {
qWarning("Failed to load dxcompiler.dll");
return {};
}
DxcCreateInstanceProc func = reinterpret_cast<DxcCreateInstanceProc>(dxclib.resolve("DxcCreateInstance"));
if (!func) {
qWarning("Unable to resolve DxcCreateInstance");
return {};
}
IDxcCompiler *compiler = nullptr;
HRESULT hr = func(CLSID_DxcCompiler, __uuidof(IDxcCompiler), reinterpret_cast<void**>(&compiler));
if (FAILED(hr)) {
qWarning("Failed to create dxc compiler instance: %s",
qPrintable(QSystemError::windowsComString(hr)));
return {};
}
IDxcLibrary *library = nullptr;
hr = func(CLSID_DxcLibrary, __uuidof(IDxcLibrary), reinterpret_cast<void**>(&library));
if (FAILED(hr)) {
qWarning("Failed to create dxc library instance: %s",
qPrintable(QSystemError::windowsComString(hr)));
return {};
}
return { compiler, library };
}
#endif
void fillDriverInfo(QRhiDriverInfo *info, const DXGI_ADAPTER_DESC1 &desc)
{
const QString name = QString::fromUtf16(reinterpret_cast<const char16_t *>(desc.Description));
info->deviceName = name.toUtf8();
info->deviceId = desc.DeviceId;
info->vendorId = desc.VendorId;
info->deviceType = (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE) ? QRhiDriverInfo::CpuDevice
: QRhiDriverInfo::UnknownDevice;
}
} // namespace
QT_END_NAMESPACE
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