mirror of
https://github.com/Blinue/Magpie.git
synced 2026-06-24 02:04:10 +00:00
382 lines
10 KiB
C++
382 lines
10 KiB
C++
#include "pch.h"
|
|
#include "DesktopDuplicationFrameSource.h"
|
|
#include "App.h"
|
|
#include "DeviceResources.h"
|
|
#include "Logger.h"
|
|
|
|
|
|
static winrt::com_ptr<IDXGIOutput1> FindMonitor(IDXGIAdapter1* adapter, HMONITOR hMonitor) {
|
|
winrt::com_ptr<IDXGIOutput> output;
|
|
|
|
for (UINT adapterIndex = 0;
|
|
SUCCEEDED(adapter->EnumOutputs(adapterIndex,output.put()));
|
|
++adapterIndex
|
|
) {
|
|
DXGI_OUTPUT_DESC desc;
|
|
HRESULT hr = output->GetDesc(&desc);
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("GetDesc 失败", hr);
|
|
continue;
|
|
}
|
|
|
|
if (desc.Monitor == hMonitor) {
|
|
winrt::com_ptr<IDXGIOutput1> output1 = output.try_as<IDXGIOutput1>();
|
|
if (!output1) {
|
|
Logger::Get().Error("从 IDXGIOutput 获取 IDXGIOutput1 失败");
|
|
return nullptr;
|
|
}
|
|
|
|
return output1;
|
|
}
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// 根据显示器句柄查找 IDXGIOutput1
|
|
static winrt::com_ptr<IDXGIOutput1> GetDXGIOutput(HMONITOR hMonitor) {
|
|
auto& dr = App::Get().GetDeviceResources();
|
|
IDXGIAdapter1* curAdapter = dr.GetGraphicsAdapter();
|
|
|
|
// 首先在当前使用的图形适配器上查询显示器
|
|
winrt::com_ptr<IDXGIOutput1> output = FindMonitor(curAdapter, hMonitor);
|
|
if (output) {
|
|
return output;
|
|
}
|
|
|
|
// 未找到则在所有图形适配器上查找
|
|
winrt::com_ptr<IDXGIAdapter1> adapter;
|
|
IDXGIFactory5* dxgiFactory = dr.GetDXGIFactory();
|
|
for (UINT adapterIndex = 0;
|
|
SUCCEEDED(dxgiFactory->EnumAdapters1(adapterIndex,adapter.put()));
|
|
++adapterIndex
|
|
) {
|
|
if (adapter.get() == curAdapter) {
|
|
continue;
|
|
}
|
|
|
|
output = FindMonitor(adapter.get(), hMonitor);
|
|
if (output) {
|
|
return output;
|
|
}
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
DesktopDuplicationFrameSource::~DesktopDuplicationFrameSource() {
|
|
_exiting = true;
|
|
WaitForSingleObject(_hDDPThread, 1000);
|
|
}
|
|
|
|
bool DesktopDuplicationFrameSource::Initialize() {
|
|
if (!FrameSourceBase::Initialize()) {
|
|
Logger::Get().Error("初始化 FrameSourceBase 失败");
|
|
return false;
|
|
}
|
|
|
|
// WDA_EXCLUDEFROMCAPTURE 只在 Win10 v2004 及更新版本中可用
|
|
const RTL_OSVERSIONINFOW& version = Utils::GetOSVersion();
|
|
if (Utils::CompareVersion(version.dwMajorVersion, version.dwMinorVersion, version.dwBuildNumber, 10, 0, 19041) < 0) {
|
|
Logger::Get().Error("当前操作系统无法使用 Desktop Duplication");
|
|
return false;
|
|
}
|
|
|
|
HWND hwndSrc = App::Get().GetHwndSrc();
|
|
|
|
HMONITOR hMonitor = MonitorFromWindow(hwndSrc, MONITOR_DEFAULTTONEAREST);
|
|
if (!hMonitor) {
|
|
Logger::Get().Win32Error("MonitorFromWindow 失败");
|
|
return false;
|
|
}
|
|
|
|
MONITORINFO mi{};
|
|
mi.cbSize = sizeof(mi);
|
|
if (!GetMonitorInfo(hMonitor, &mi)) {
|
|
Logger::Get().Win32Error("GetMonitorInfo 失败");
|
|
return false;
|
|
}
|
|
|
|
if (!_CenterWindowIfNecessary(hwndSrc, mi.rcWork)) {
|
|
Logger::Get().Error("居中源窗口失败");
|
|
return false;
|
|
}
|
|
|
|
if (!_UpdateSrcFrameRect()) {
|
|
Logger::Get().Error("_UpdateSrcFrameRect 失败");
|
|
return false;
|
|
}
|
|
|
|
auto d3dDevice = App::Get().GetDeviceResources().GetD3DDevice();
|
|
|
|
D3D11_TEXTURE2D_DESC desc{};
|
|
desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
|
|
desc.Width = _srcFrameRect.right - _srcFrameRect.left;
|
|
desc.Height = _srcFrameRect.bottom - _srcFrameRect.top;
|
|
desc.Usage = D3D11_USAGE_DEFAULT;
|
|
desc.MipLevels = 1;
|
|
desc.ArraySize = 1;
|
|
desc.SampleDesc.Count = 1;
|
|
desc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_UNORDERED_ACCESS;
|
|
HRESULT hr = d3dDevice->CreateTexture2D(&desc, nullptr, _output.put());
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("创建 Texture2D 失败", hr);
|
|
return false;
|
|
}
|
|
|
|
// 创建共享纹理
|
|
desc.MiscFlags = D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX;
|
|
hr = d3dDevice->CreateTexture2D(&desc, nullptr, _sharedTex.put());
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("创建 Texture2D 失败", hr);
|
|
return false;
|
|
}
|
|
|
|
_sharedTexMutex = _sharedTex.try_as<IDXGIKeyedMutex>();
|
|
if (!_sharedTexMutex) {
|
|
Logger::Get().Error("检索 IDXGIKeyedMutex 失败");
|
|
return false;
|
|
}
|
|
|
|
winrt::com_ptr<IDXGIResource> sharedDxgiRes = _sharedTex.try_as<IDXGIResource>();
|
|
if (!sharedDxgiRes) {
|
|
Logger::Get().Error("检索 IDXGIResource 失败");
|
|
return false;
|
|
}
|
|
|
|
HANDLE hSharedTex = NULL;
|
|
hr = sharedDxgiRes->GetSharedHandle(&hSharedTex);
|
|
if (FAILED(hr)) {
|
|
Logger::Get().Error("GetSharedHandle 失败");
|
|
return false;
|
|
}
|
|
|
|
if (!_InitializeDdpD3D(hSharedTex)) {
|
|
Logger::Get().Error("初始化 D3D 失败");
|
|
return false;
|
|
}
|
|
|
|
winrt::com_ptr<IDXGIOutput1> output = GetDXGIOutput(hMonitor);
|
|
if (!output) {
|
|
Logger::Get().Error("无法找到 IDXGIOutput");
|
|
return false;
|
|
}
|
|
|
|
hr = output->DuplicateOutput(_ddpD3dDevice.get(), _outputDup.put());
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("DuplicateOutput 失败", hr);
|
|
return false;
|
|
}
|
|
|
|
// 计算源窗口客户区在该屏幕上的位置，用于计算新帧是否有更新
|
|
_srcClientInMonitor = {
|
|
_srcFrameRect.left - mi.rcMonitor.left,
|
|
_srcFrameRect.top - mi.rcMonitor.top,
|
|
_srcFrameRect.right - mi.rcMonitor.left,
|
|
_srcFrameRect.bottom - mi.rcMonitor.top
|
|
};
|
|
|
|
_frameInMonitor = {
|
|
(UINT)_srcClientInMonitor.left,
|
|
(UINT)_srcClientInMonitor.top,
|
|
0,
|
|
(UINT)_srcClientInMonitor.right,
|
|
(UINT)_srcClientInMonitor.bottom,
|
|
1
|
|
};
|
|
|
|
// 使全屏窗口无法被捕获到
|
|
if (!SetWindowDisplayAffinity(App::Get().GetHwndHost(), WDA_EXCLUDEFROMCAPTURE)) {
|
|
Logger::Get().Win32Error("SetWindowDisplayAffinity 失败");
|
|
return false;
|
|
}
|
|
|
|
|
|
_hDDPThread = CreateThread(nullptr, 0, _DDPThreadProc, this, 0, nullptr);
|
|
if (!_hDDPThread) {
|
|
return false;
|
|
}
|
|
|
|
Logger::Get().Info("DesktopDuplicationFrameSource 初始化完成");
|
|
return true;
|
|
}
|
|
|
|
|
|
FrameSourceBase::UpdateState DesktopDuplicationFrameSource::Update() {
|
|
UINT newFrameState = _newFrameState.load();
|
|
if (newFrameState == 2) {
|
|
// 第一帧之前不渲染
|
|
return UpdateState::Waiting;
|
|
} else if (newFrameState == 0) {
|
|
return UpdateState::NoUpdate;
|
|
}
|
|
|
|
// 不必等待，当 newFrameState 变化时 DDP 线程已将锁释放
|
|
HRESULT hr = _sharedTexMutex->AcquireSync(1, 0);
|
|
if (hr == static_cast<HRESULT>(WAIT_TIMEOUT)) {
|
|
return UpdateState::Waiting;
|
|
}
|
|
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("AcquireSync 失败", hr);
|
|
return UpdateState::Error;
|
|
}
|
|
|
|
_newFrameState.store(0);
|
|
|
|
App::Get().GetDeviceResources().GetD3DDC()->CopyResource(_output.get(), _sharedTex.get());
|
|
|
|
_sharedTexMutex->ReleaseSync(0);
|
|
|
|
return UpdateState::NewFrame;
|
|
}
|
|
|
|
bool DesktopDuplicationFrameSource::_InitializeDdpD3D(HANDLE hSharedTex) {
|
|
UINT createDeviceFlags = D3D11_CREATE_DEVICE_BGRA_SUPPORT;
|
|
if (DeviceResources::IsDebugLayersAvailable()) {
|
|
// 在 DEBUG 配置启用调试层
|
|
createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
|
|
}
|
|
|
|
D3D_FEATURE_LEVEL featureLevels[] = {
|
|
D3D_FEATURE_LEVEL_11_1,
|
|
D3D_FEATURE_LEVEL_11_0
|
|
};
|
|
UINT nFeatureLevels = ARRAYSIZE(featureLevels);
|
|
|
|
// 使用和 Renderer 相同的图像适配器以避免 GPU 间的纹理拷贝
|
|
HRESULT hr = D3D11CreateDevice(
|
|
App::Get().GetDeviceResources().GetGraphicsAdapter(),
|
|
D3D_DRIVER_TYPE_UNKNOWN,
|
|
nullptr,
|
|
createDeviceFlags,
|
|
featureLevels,
|
|
nFeatureLevels,
|
|
D3D11_SDK_VERSION,
|
|
_ddpD3dDevice.put(),
|
|
nullptr,
|
|
_ddpD3dDC.put()
|
|
);
|
|
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("D3D11CreateDevice 失败", hr);
|
|
return false;
|
|
}
|
|
|
|
// 获取共享纹理
|
|
hr = _ddpD3dDevice->OpenSharedResource(hSharedTex, IID_PPV_ARGS(_ddpSharedTex.put()));
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("OpenSharedResource 失败", hr);
|
|
return false;
|
|
}
|
|
|
|
_ddpSharedTexMutex = _ddpSharedTex.try_as<IDXGIKeyedMutex>();
|
|
if (!_ddpSharedTexMutex) {
|
|
Logger::Get().Error("检索 IDXGIKeyedMutex 失败");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
DWORD WINAPI DesktopDuplicationFrameSource::_DDPThreadProc(LPVOID lpThreadParameter) {
|
|
DesktopDuplicationFrameSource& that = *(DesktopDuplicationFrameSource*)lpThreadParameter;
|
|
|
|
DXGI_OUTDUPL_FRAME_INFO info{};
|
|
winrt::com_ptr<IDXGIResource> dxgiRes;
|
|
std::vector<BYTE> dupMetaData;
|
|
|
|
while (!that._exiting.load()) {
|
|
if (dxgiRes) {
|
|
that._outputDup->ReleaseFrame();
|
|
}
|
|
HRESULT hr = that._outputDup->AcquireNextFrame(500, &info, dxgiRes.put());
|
|
if (hr == DXGI_ERROR_WAIT_TIMEOUT) {
|
|
continue;
|
|
}
|
|
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("AcquireNextFrame 失败", hr);
|
|
continue;
|
|
}
|
|
|
|
bool noUpdate = true;
|
|
|
|
// 检索 move rects 和 dirty rects
|
|
// 这些区域如果和窗口客户区有重叠则表明画面有变化
|
|
if (info.TotalMetadataBufferSize) {
|
|
if (info.TotalMetadataBufferSize > dupMetaData.size()) {
|
|
dupMetaData.resize(info.TotalMetadataBufferSize);
|
|
}
|
|
|
|
UINT bufSize = info.TotalMetadataBufferSize;
|
|
|
|
// move rects
|
|
hr = that._outputDup->GetFrameMoveRects(bufSize, (DXGI_OUTDUPL_MOVE_RECT*)dupMetaData.data(), &bufSize);
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("GetFrameMoveRects 失败", hr);
|
|
continue;
|
|
}
|
|
|
|
UINT nRect = bufSize / sizeof(DXGI_OUTDUPL_MOVE_RECT);
|
|
for (UINT i = 0; i < nRect; ++i) {
|
|
const DXGI_OUTDUPL_MOVE_RECT& rect = ((DXGI_OUTDUPL_MOVE_RECT*)dupMetaData.data())[i];
|
|
if (Utils::CheckOverlap(that._srcClientInMonitor, rect.DestinationRect)) {
|
|
noUpdate = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (noUpdate) {
|
|
bufSize = info.TotalMetadataBufferSize;
|
|
|
|
// dirty rects
|
|
hr = that._outputDup->GetFrameDirtyRects(bufSize, (RECT*)dupMetaData.data(), &bufSize);
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("GetFrameDirtyRects 失败", hr);
|
|
continue;
|
|
}
|
|
|
|
nRect = bufSize / sizeof(RECT);
|
|
for (UINT i = 0; i < nRect; ++i) {
|
|
const RECT& rect = ((RECT*)dupMetaData.data())[i];
|
|
if (Utils::CheckOverlap(that._srcClientInMonitor, rect)) {
|
|
noUpdate = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (noUpdate) {
|
|
continue;
|
|
}
|
|
|
|
winrt::com_ptr<ID3D11Resource> d3dRes = dxgiRes.try_as<ID3D11Resource>();
|
|
if (!d3dRes) {
|
|
Logger::Get().Error("从 IDXGIResource 检索 ID3D11Resource 失败");
|
|
continue;
|
|
}
|
|
|
|
hr = that._ddpSharedTexMutex->AcquireSync(0, 100);
|
|
while (hr == static_cast<HRESULT>(WAIT_TIMEOUT)) {
|
|
if (that._exiting.load()) {
|
|
return 0;
|
|
}
|
|
|
|
hr = that._ddpSharedTexMutex->AcquireSync(0, 100);
|
|
}
|
|
|
|
if (FAILED(hr)) {
|
|
Logger::Get().ComError("AcquireSync 失败", hr);
|
|
continue;
|
|
}
|
|
|
|
|
|
that._ddpD3dDC->CopySubresourceRegion(that._ddpSharedTex.get(), 0, 0, 0, 0, d3dRes.get(), 0, &that._frameInMonitor);
|
|
that._ddpSharedTexMutex->ReleaseSync(1);
|
|
that._newFrameState.store(1);
|
|
}
|
|
|
|
return 0;
|
|
}
|