87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
#pragma once
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#include <algorithm>
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#include <sophia/handles.hpp>
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#include <sophia/scene_view.hpp>
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#include <sophia/util/pool.hpp>
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#include <utility>
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#include <vector>
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namespace sophia {
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/**
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* Every live SceneView. The application renders all enabled views each frame,
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* in ascending priority order, before the UI.
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*/
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class SceneViewRegistry {
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public:
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SceneViewRegistry(const SceneViewRegistry&) = delete;
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SceneViewRegistry& operator=(const SceneViewRegistry&) = delete;
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SceneViewRegistry() = default;
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~SceneViewRegistry() = default;
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SceneViewHandle create(const SceneView& view = {}) {
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isRenderQueueDirty = true;
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return pool.create(view);
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}
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const SceneView& get(SceneViewHandle handle) const {
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return pool.get(handle);
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}
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SceneView& get(SceneViewHandle handle) {
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isRenderQueueDirty = true;
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return pool.get(handle);
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}
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void release(SceneViewHandle handle) {
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isRenderQueueDirty = true;
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pool.release(handle);
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}
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bool isAlive(SceneViewHandle handle) const { return pool.isAlive(handle); }
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u32 size() const { return pool.size(); }
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template <typename Fn>
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void forEach(Fn&& fn) {
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isRenderQueueDirty = true;
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pool.forEach(std::forward<Fn>(fn));
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}
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template <typename Fn>
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void forEach(Fn&& fn) const {
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pool.forEach(std::forward<Fn>(fn));
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}
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const std::vector<SceneViewHandle>& GetRenderQueue() const {
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if (isRenderQueueDirty) {
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rebuildRenderQueue();
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}
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return renderQueue;
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}
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private:
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void rebuildRenderQueue() const {
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renderQueue.clear();
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pool.forEachWithHandle([&](SceneViewHandle handle, const SceneView& view) {
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if (view.enabled) {
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renderQueue.push_back(handle);
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}
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});
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std::ranges::stable_sort(renderQueue, {}, [this](SceneViewHandle handle) {
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return pool.get(handle).priority;
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});
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isRenderQueueDirty = false;
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}
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Pool<SceneView> pool{"SceneView"};
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mutable std::vector<SceneViewHandle> renderQueue;
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mutable bool isRenderQueueDirty = true;
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};
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} // namespace sophia
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