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102 lines
3.3 KiB
102 lines
3.3 KiB
7 months ago
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/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/desktop_capture/win/d3d_device.h"
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#include <utility>
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#include "rtc_base/logging.h"
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namespace webrtc {
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using Microsoft::WRL::ComPtr;
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D3dDevice::D3dDevice() = default;
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D3dDevice::D3dDevice(const D3dDevice& other) = default;
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D3dDevice::D3dDevice(D3dDevice&& other) = default;
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D3dDevice::~D3dDevice() = default;
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bool D3dDevice::Initialize(const ComPtr<IDXGIAdapter>& adapter) {
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dxgi_adapter_ = adapter;
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if (!dxgi_adapter_) {
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RTC_LOG(LS_WARNING) << "An empty IDXGIAdapter instance has been received.";
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return false;
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}
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D3D_FEATURE_LEVEL feature_level;
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// Default feature levels contain D3D 9.1 through D3D 11.0.
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_com_error error = D3D11CreateDevice(
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adapter.Get(), D3D_DRIVER_TYPE_UNKNOWN, nullptr,
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D3D11_CREATE_DEVICE_BGRA_SUPPORT | D3D11_CREATE_DEVICE_SINGLETHREADED,
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nullptr, 0, D3D11_SDK_VERSION, d3d_device_.GetAddressOf(), &feature_level,
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context_.GetAddressOf());
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if (error.Error() != S_OK || !d3d_device_ || !context_) {
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RTC_LOG(LS_WARNING) << "D3D11CreateDeivce returns error "
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<< error.ErrorMessage() << " with code "
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<< error.Error();
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return false;
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}
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if (feature_level < D3D_FEATURE_LEVEL_11_0) {
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RTC_LOG(LS_WARNING)
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<< "D3D11CreateDevice returns an instance without DirectX "
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"11 support, level "
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<< feature_level << ". Following initialization may fail.";
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// D3D_FEATURE_LEVEL_11_0 is not officially documented on MSDN to be a
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// requirement of Dxgi duplicator APIs.
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}
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error = d3d_device_.As(&dxgi_device_);
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if (error.Error() != S_OK || !dxgi_device_) {
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RTC_LOG(LS_WARNING)
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<< "ID3D11Device is not an implementation of IDXGIDevice, "
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"this usually means the system does not support DirectX "
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"11. Error "
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<< error.ErrorMessage() << " with code " << error.Error();
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return false;
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}
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return true;
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}
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// static
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std::vector<D3dDevice> D3dDevice::EnumDevices() {
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ComPtr<IDXGIFactory1> factory;
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_com_error error =
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CreateDXGIFactory1(__uuidof(IDXGIFactory1),
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reinterpret_cast<void**>(factory.GetAddressOf()));
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if (error.Error() != S_OK || !factory) {
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RTC_LOG(LS_WARNING) << "Cannot create IDXGIFactory1.";
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return std::vector<D3dDevice>();
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}
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std::vector<D3dDevice> result;
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for (int i = 0;; i++) {
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ComPtr<IDXGIAdapter> adapter;
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error = factory->EnumAdapters(i, adapter.GetAddressOf());
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if (error.Error() == S_OK) {
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D3dDevice device;
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if (device.Initialize(adapter)) {
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result.push_back(std::move(device));
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}
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} else if (error.Error() == DXGI_ERROR_NOT_FOUND) {
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break;
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} else {
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RTC_LOG(LS_WARNING)
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<< "IDXGIFactory1::EnumAdapters returns an unexpected "
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"error "
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<< error.ErrorMessage() << " with code " << error.Error();
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}
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}
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return result;
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}
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} // namespace webrtc
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