Extract scene viewport overlay frame cache module

editor/src/Viewport/SceneViewportOverlayFrameCache.h

@@ -0,0 +1,64 @@
+#pragma once
+
+#include "SceneViewportEditorOverlayData.h"
+
+#include <cstdint>
+#include <vector>
+
+namespace XCEngine {
+namespace Components {
+class Scene;
+} // namespace Components
+
+namespace Editor {
+
+struct SceneViewportOverlayFrameCacheState {
+    SceneViewportOverlayFrameData frameData = {};
+    const Components::Scene* scene = nullptr;
+    std::vector<uint64_t> selectedObjectIds = {};
+    uint32_t viewportWidth = 0u;
+    uint32_t viewportHeight = 0u;
+    uint64_t contentSignature = 0u;
+    bool cached = false;
+};
+
+void ResetSceneViewportOverlayFrameCacheState(
+    SceneViewportOverlayFrameCacheState& cacheState);
+
+void ResolveSceneViewportOverlayFrameViewportSize(
+    uint32_t requestedWidth,
+    uint32_t requestedHeight,
+    uint32_t renderWidth,
+    uint32_t renderHeight,
+    uint32_t& outWidth,
+    uint32_t& outHeight);
+
+bool AreEqualSceneViewportOverlayData(
+    const SceneViewportOverlayData& lhs,
+    const SceneViewportOverlayData& rhs);
+
+uint64_t BuildSceneViewportOverlayContentSignature(
+    const Components::Scene* scene,
+    const std::vector<uint64_t>& selectedObjectIds);
+
+bool ShouldRebuildSceneViewportOverlayFrameCache(
+    const SceneViewportOverlayFrameCacheState& cacheState,
+    const Components::Scene* scene,
+    const SceneViewportOverlayData& overlay,
+    uint32_t viewportWidth,
+    uint32_t viewportHeight,
+    const std::vector<uint64_t>& selectedObjectIds,
+    uint64_t contentSignature,
+    bool transformGizmoOverlayDirty);
+
+void UpdateSceneViewportOverlayFrameCacheState(
+    SceneViewportOverlayFrameCacheState& cacheState,
+    const Components::Scene* scene,
+    uint32_t viewportWidth,
+    uint32_t viewportHeight,
+    const std::vector<uint64_t>& selectedObjectIds,
+    uint64_t contentSignature,
+    const SceneViewportOverlayFrameData& frameData);
+
+} // namespace Editor
+} // namespace XCEngine