feat: 添加DwmSharedSurface捕获方式

Runtime/SharedSurfaceFrameSource.cpp

@@ -0,0 +1,74 @@
+#include "pch.h"
+#include "SharedSurfaceFrameSource.h"
+#include "App.h"
+
+
+extern std::shared_ptr<spdlog::logger> logger;
+
+bool SharedSurfaceFrameSource::Initialize() {
+	HMODULE user32 = GetModuleHandle(L"user32");
+	if (!user32) {
+		SPDLOG_LOGGER_ERROR(logger, "获取 User32 模块句柄失败");
+		return false;
+	}
+
+	_dwmGetDxSharedSurface = (_DwmGetDxSharedSurfaceFunc*)GetProcAddress(user32, "DwmGetDxSharedSurface");
+
+	if (!_dwmGetDxSharedSurface) {
+		SPDLOG_LOGGER_ERROR(logger, "获取函数 DwmGetDxSharedSurfaceFunc 地址失败");
+		return false;
+	}
+
+	_d3dDC = App::GetInstance().GetRenderer().GetD3DDC();
+	_d3dDevice = App::GetInstance().GetRenderer().GetD3DDevice();
+	_hwndSrc = App::GetInstance().GetHwndSrc();
+
+	RECT srcWindowRect;
+	GetWindowRect(_hwndSrc, &srcWindowRect);
+	const RECT srcClientRect = App::GetInstance().GetSrcClientRect();
+	
+	_clientInFrame = {
+		srcClientRect.left - srcWindowRect.left,
+		srcClientRect.top - srcWindowRect.top,
+		srcClientRect.right - srcWindowRect.left,
+		srcClientRect.bottom - srcWindowRect.top
+	};
+
+	D3D11_TEXTURE2D_DESC desc{};
+	desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
+	desc.Width = srcClientRect.right - srcClientRect.left;
+	desc.Height = srcClientRect.bottom - srcClientRect.top;
+	desc.MipLevels = 1;
+	desc.ArraySize = 1;
+	desc.SampleDesc.Count = 1;
+	desc.SampleDesc.Quality = 0;
+	desc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET;
+	_d3dDevice->CreateTexture2D(&desc, nullptr, &_output);
+
+	return true;
+}
+
+ComPtr<ID3D11Texture2D> SharedSurfaceFrameSource::GetOutput() {
+	return _output;
+}
+
+bool SharedSurfaceFrameSource::Update() {
+	HANDLE handle = NULL;
+	if (!_dwmGetDxSharedSurface(_hwndSrc, &handle, nullptr, nullptr, nullptr, nullptr)) {
+		return false;
+	}
+
+	ComPtr<ID3D11Texture2D> texture;
+	HRESULT hr = _d3dDevice->OpenSharedResource(handle, IID_PPV_ARGS(&texture));
+	if (FAILED(hr)) {
+		return false;
+	}
+	
+	D3D11_BOX box{
+		_clientInFrame.left, _clientInFrame.top, 0,
+		_clientInFrame.right, _clientInFrame.bottom, 1
+	};
+	_d3dDC->CopySubresourceRegion(_output.Get(), 0, 0, 0, 0, texture.Get(), 0, &box);
+
+	return true;
+}