| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef QBATCHRENDERER_H |
| 5 | #define QBATCHRENDERER_H |
| 6 | |
| 7 | // |
| 8 | // W A R N I N G |
| 9 | // ------------- |
| 10 | // |
| 11 | // This file is not part of the Qt API. It exists purely as an |
| 12 | // implementation detail. This header file may change from version to |
| 13 | // version without notice, or even be removed. |
| 14 | // |
| 15 | // We mean it. |
| 16 | // |
| 17 | |
| 18 | #include <QHash> |
| 19 | #include <QThread> |
| 20 | #include <QMutex> |
| 21 | #include <QWaitCondition> |
| 22 | |
| 23 | QT_BEGIN_NAMESPACE |
| 24 | |
| 25 | class QLottieBase; |
| 26 | class QImage; |
| 27 | class QLottieAnimation; |
| 28 | |
| 29 | class QBatchRenderer : public QThread |
| 30 | { |
| 31 | Q_OBJECT |
| 32 | |
| 33 | struct Entry |
| 34 | { |
| 35 | QLottieAnimation* animator = nullptr; |
| 36 | QLottieBase *lottieTreeBlueprint = nullptr; |
| 37 | int startFrame = 0; |
| 38 | int endFrame = 0; |
| 39 | int currentFrame = 0; |
| 40 | int animDir = 1; |
| 41 | QHash<int, QLottieBase*> frameCache; |
| 42 | }; |
| 43 | |
| 44 | public: |
| 45 | ~QBatchRenderer() override; |
| 46 | |
| 47 | QBatchRenderer(QBatchRenderer const &) = delete; |
| 48 | void operator=(QBatchRenderer const&) = delete; |
| 49 | |
| 50 | static QBatchRenderer *instance(); |
| 51 | static void deleteInstance(); |
| 52 | |
| 53 | QLottieBase *getFrame(QLottieAnimation *animator, int frameNumber); |
| 54 | |
| 55 | Q_SIGNALS: |
| 56 | void frameReady(QLottieAnimation *animator, int frameNumber); |
| 57 | |
| 58 | public Q_SLOTS: |
| 59 | void registerAnimator(QLottieAnimation *animator); |
| 60 | void deregisterAnimator(QLottieAnimation *animator); |
| 61 | |
| 62 | bool gotoFrame(QLottieAnimation *animator, int frame); |
| 63 | |
| 64 | void frameRendered(QLottieAnimation *animator, int frameNumber); |
| 65 | |
| 66 | protected: |
| 67 | void run() override; |
| 68 | |
| 69 | void prerender(Entry *animEntry); |
| 70 | |
| 71 | private: |
| 72 | QBatchRenderer(); |
| 73 | |
| 74 | void pruneFrameCache(Entry* e); |
| 75 | |
| 76 | private: |
| 77 | static QBatchRenderer *m_rendererInstance; |
| 78 | |
| 79 | QMutex m_mutex; |
| 80 | QWaitCondition m_waitCondition; |
| 81 | |
| 82 | int m_cacheSize = 2; |
| 83 | QHash<QLottieAnimation *, Entry *> m_animData; |
| 84 | int m_lastRenderedFrame = -1; |
| 85 | }; |
| 86 | |
| 87 | QT_END_NAMESPACE |
| 88 | |
| 89 | #endif // QBATCHRENDERER_H |
| 90 |