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https://github.com/leozide/leocad.git
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Leonardo Zide
29c9c98402
Move part scheduling and futures into a library-owned lcAssetLoader while preserving current loading behavior. Hold queued parts alive through completion, deliver completion notifications on the UI thread, and drain work before library teardown. Pause queued work during stud-style changes, rebuild affected meshes, and use an unambiguous mesh-cache settings key. Guard mesh-buffer rebuilding against allocation failure. Add the loader to the qmake build and document common build conventions.
77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
#pragma once
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#include <memory>
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#include "lc_library.h"
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class PieceInfo;
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class lcMesh;
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// The worker result will be populated by private mesh builds in the next stage.
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// Request identity will let the next stage reject a result from a previous
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// library generation after a source reload.
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struct lcPartBuildResult
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{
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lcPartBuildResult() = default;
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~lcPartBuildResult();
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lcPartBuildResult(lcPartBuildResult&&) = default;
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lcPartBuildResult& operator=(lcPartBuildResult&&) = default;
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lcPartBuildResult(const lcPartBuildResult&) = delete;
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lcPartBuildResult& operator=(const lcPartBuildResult&) = delete;
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quint64 RequestId = 0;
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quint64 Generation = 0;
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std::unique_ptr<lcMesh> Mesh;
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lcBoundingBox Bounds;
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QStringList TextureDependencies;
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QString Error;
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};
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class lcAssetLoader : public QObject
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{
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public:
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lcAssetLoader(lcPiecesLibrary* Library, lcLibraryLoadMutex& LoadMutex);
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~lcAssetLoader() override;
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void LoadPieceInfo(PieceInfo* Info, bool Wait, bool Priority);
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void QueuePiece(PieceInfo* Info, bool Priority);
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void WaitForLoadQueue();
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void CancelAndDrain();
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void PauseQueuedWork();
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void ResumeQueuedWork();
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private:
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struct Request
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{
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PieceInfo* Info;
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quint64 Id;
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quint64 Generation;
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};
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struct Completion
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{
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PieceInfo* Info;
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bool Notify;
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};
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// Call with the library load lock held. The queued request keeps an extra
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// reference until a worker finishes or cancellation removes it.
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void QueuePieceLocked(PieceInfo* Info, bool Priority);
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void LoadQueuedPiece();
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void ProcessCompletions();
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bool event(QEvent* Event) override;
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lcPiecesLibrary* const mLibrary;
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lcLibraryLoadMutex& mLoadMutex;
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QMutex mQueueMutex;
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// Completion notifications may reenter a wait on the UI thread.
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lcLibraryLoadMutex mDrainMutex;
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QList<Request> mQueue;
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QList<Request> mPausedQueue;
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QList<Completion> mCompletions;
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QList<QFuture<void>> mFutures;
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quint64 mNextRequestId = 1;
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quint64 mGeneration = 1;
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bool mPaused = false;
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bool mStopping = false;
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};
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