refactor(new_editor/app): split native renderer lifecycle hotspots

new_editor/app/Rendering/Native/NativeRendererWindowInterop.cpp

@@ -0,0 +1,72 @@
+#include "NativeRendererSupport.h"
+
+namespace XCEngine::UI::Editor::Host {
+
+using namespace NativeRendererSupport;
+
+bool NativeRenderer::AttachWindowRenderer(D3D12WindowRenderer& windowRenderer) {
+    if (m_windowRenderer != &windowRenderer) {
+        ReleaseWindowRendererInterop();
+        m_windowRenderer = &windowRenderer;
+    }
+
+    if (!EnsureWindowRendererInterop()) {
+        return false;
+    }
+
+    DiscardRenderTarget();
+
+    if (m_windowInterop.HasBackBufferTargets()) {
+        return true;
+    }
+
+    return m_windowInterop.RebuildBackBufferTargets();
+}
+
+void NativeRenderer::DetachWindowRenderer() {
+    ReleaseWindowRendererInterop();
+    m_windowRenderer = nullptr;
+}
+
+void NativeRenderer::ReleaseWindowRendererBackBufferTargets() {
+    m_windowInterop.ReleaseBackBufferTargets();
+}
+
+bool NativeRenderer::RebuildWindowRendererBackBufferTargets() {
+    if (!EnsureWindowRendererInterop()) {
+        return false;
+    }
+
+    DiscardRenderTarget();
+    ReleaseWindowRendererBackBufferTargets();
+    return m_windowInterop.RebuildBackBufferTargets();
+}
+
+bool NativeRenderer::HasAttachedWindowRenderer() const {
+    return m_windowInterop.HasAttachedWindowRenderer();
+}
+
+bool NativeRenderer::EnsureWindowRendererInterop() {
+    if (m_windowRenderer == nullptr) {
+        m_lastRenderError = "EnsureWindowRendererInterop requires an attached D3D12 window renderer.";
+        return false;
+    }
+    if (m_d2dFactory == nullptr || m_dwriteFactory == nullptr) {
+        m_lastRenderError = "EnsureWindowRendererInterop requires initialized D2D and DWrite factories.";
+        return false;
+    }
+
+    const bool attached = m_windowInterop.Attach(*m_windowRenderer, *m_d2dFactory.Get());
+    if (!attached) {
+        m_lastRenderError = m_windowInterop.GetLastError();
+    } else {
+        m_lastRenderError.clear();
+    }
+    return attached;
+}
+
+void NativeRenderer::ReleaseWindowRendererInterop() {
+    m_windowInterop.Detach();
+}
+
+} // namespace XCEngine::UI::Editor::Host