refactor(new_editor/app): reorganize host structure and add smoke test

new_editor/app/Rendering/D3D12/D3D12WindowSwapChainPresenterResize.cpp

@@ -0,0 +1,100 @@
+#include "D3D12WindowSwapChainPresenter.h"
+
+#include <sstream>
+
+namespace XCEngine::UI::Editor::Host {
+
+using ::XCEngine::RHI::D3D12SwapChain;
+using ::XCEngine::RHI::D3D12Texture;
+
+bool D3D12WindowSwapChainPresenter::Resize(int width, int height) {
+    if (width <= 0 || height <= 0 || m_swapChain == nullptr || m_hostDevice == nullptr) {
+        return false;
+    }
+
+    if (m_width == width && m_height == height) {
+        m_lastError.clear();
+        return true;
+    }
+
+    m_hostDevice->WaitForGpuIdle();
+    ReleaseBackBufferCommandReferences();
+    ReleaseBackBufferViews();
+
+    D3D12SwapChain* d3d12SwapChain = GetD3D12SwapChain();
+    if (d3d12SwapChain == nullptr) {
+        m_lastError = "Resize could not resolve the native D3D12 swap chain.";
+        return false;
+    }
+
+    d3d12SwapChain->Resize(
+        static_cast<std::uint32_t>(width),
+        static_cast<std::uint32_t>(height));
+    const HRESULT resizeHr = d3d12SwapChain->GetLastResizeResult();
+    if (FAILED(resizeHr)) {
+        if (RecreateSwapChain(width, height)) {
+            m_lastError.clear();
+            return true;
+        }
+
+        std::ostringstream error = {};
+        error << "ResizeBuffers failed. requested="
+              << width
+              << 'x'
+              << height
+              << " hr=0x"
+              << std::uppercase
+              << std::hex
+              << static_cast<unsigned long>(resizeHr);
+        m_lastError = error.str();
+        return false;
+    }
+
+    const D3D12Texture* backBufferTexture = GetBackBufferTexture(0u);
+    if (backBufferTexture == nullptr) {
+        if (RecreateSwapChain(width, height)) {
+            m_lastError.clear();
+            return true;
+        }
+
+        m_lastError = "Resize failed to restore swap chain back buffers after ResizeBuffers.";
+        return false;
+    }
+
+    m_width = static_cast<int>(backBufferTexture->GetWidth());
+    m_height = static_cast<int>(backBufferTexture->GetHeight());
+    m_hostDevice->ResetFrameTracking();
+    if (!RecreateBackBufferViews()) {
+        if (RecreateSwapChain(width, height)) {
+            m_lastError.clear();
+            return true;
+        }
+
+        m_lastError = "Resize failed to recreate swap chain back buffer views.";
+        return false;
+    }
+
+    if (m_width != width || m_height != height) {
+        if (RecreateSwapChain(width, height)) {
+            m_lastError.clear();
+            return true;
+        }
+
+        std::ostringstream error = {};
+        error << "Resize ended with an unexpected swap chain size. requested="
+              << width
+              << 'x'
+              << height
+              << " actual="
+              << m_width
+              << 'x'
+              << m_height;
+        m_lastError = error.str();
+        return false;
+    }
+
+    m_lastError.clear();
+    return true;
+}
+
+} // namespace XCEngine::UI::Editor::Host