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/*
* Copyright (c) 2020 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "rtc_base/win/create_direct3d_device.h"
#include <libloaderapi.h>
#include <utility>
namespace {
FARPROC LoadD3D11Function(const char* function_name) {
static HMODULE const handle =
::LoadLibraryExW(L"d3d11.dll", nullptr, LOAD_LIBRARY_SEARCH_SYSTEM32);
return handle ? ::GetProcAddress(handle, function_name) : nullptr;
}
decltype(&::CreateDirect3D11DeviceFromDXGIDevice)
GetCreateDirect3D11DeviceFromDXGIDevice() {
static decltype(&::CreateDirect3D11DeviceFromDXGIDevice) const function =
reinterpret_cast<decltype(&::CreateDirect3D11DeviceFromDXGIDevice)>(
LoadD3D11Function("CreateDirect3D11DeviceFromDXGIDevice"));
return function;
}
} // namespace
namespace webrtc {
bool ResolveCoreWinRTDirect3DDelayload() {
return GetCreateDirect3D11DeviceFromDXGIDevice();
}
HRESULT CreateDirect3DDeviceFromDXGIDevice(
IDXGIDevice* dxgi_device,
ABI::Windows::Graphics::DirectX::Direct3D11::IDirect3DDevice**
out_d3d11_device) {
decltype(&::CreateDirect3D11DeviceFromDXGIDevice) create_d3d11_device_func =
GetCreateDirect3D11DeviceFromDXGIDevice();
if (!create_d3d11_device_func)
return E_FAIL;
Microsoft::WRL::ComPtr<IInspectable> inspectableSurface;
HRESULT hr = create_d3d11_device_func(dxgi_device, &inspectableSurface);
if (FAILED(hr))
return hr;
return inspectableSurface->QueryInterface(IID_PPV_ARGS(out_d3d11_device));
}
} // namespace webrtc
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