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| |
| #ifndef QT3DEXTRAS_QTEXTUREATLAS_P_P_H |
| #define QT3DEXTRAS_QTEXTUREATLAS_P_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of other Qt classes. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtCore/qscopedpointer.h> |
| #include <Qt3DRender/private/qabstracttexture_p.h> |
| #include <Qt3DRender/qtexturegenerator.h> |
| #include <Qt3DExtras/private/areaallocator_p.h> |
| #include <Qt3DExtras/private/qtextureatlas_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Qt3DExtras { |
| |
| // Used to store texture info within atlas |
| struct AtlasTexture |
| { |
| QRect position; |
| int padding = 0; |
| }; |
| |
| // data shared between QTextureAtlasPrivate and the QTextureGenerators |
| // we use this extra indirection so we can lazily copy the sub-images |
| // into the actual texture image in the backend texture loader thread. |
| class QTextureAtlasData |
| { |
| public: |
| QTextureAtlasData(int w, int h, QImage::Format fmt); |
| ~QTextureAtlasData(); |
| |
| int width() const { return m_image.width(); } |
| int height() const { return m_image.height(); } |
| |
| void addImage(const AtlasTexture &texture, const QImage &image); |
| QByteArray createUpdatedImageData(); |
| |
| private: |
| struct Update { |
| AtlasTexture textureInfo; |
| QImage image; |
| }; |
| |
| QMutex m_mutex; |
| QImage m_image; |
| QVector<Update> m_updates; |
| }; |
| |
| typedef QSharedPointer<QTextureAtlasData> QTextureAtlasDataPtr; |
| |
| class QTextureAtlasPrivate : public Qt3DRender::QAbstractTexturePrivate |
| { |
| public: |
| QTextureAtlasPrivate(); |
| ~QTextureAtlasPrivate(); |
| |
| Q_DECLARE_PUBLIC(QTextureAtlas) |
| |
| QTextureAtlas::TextureId m_currId = 1; // IDs for new sub-textures |
| int m_currGen = 0; |
| |
| QTextureAtlasDataPtr m_data; |
| QScopedPointer<AreaAllocator> m_allocator; |
| QOpenGLTexture::PixelFormat m_pixelFormat; |
| QHash<QTextureAtlas::TextureId, AtlasTexture> m_textures; |
| }; |
| |
| class QTextureAtlasGenerator : public Qt3DRender::QTextureGenerator |
| { |
| public: |
| QTextureAtlasGenerator(const QTextureAtlasPrivate *texAtlas); |
| ~QTextureAtlasGenerator(); |
| Qt3DRender::QTextureDataPtr operator()() override; |
| bool operator==(const QTextureGenerator &other) const override; |
| |
| QT3D_FUNCTOR(QTextureAtlasGenerator) |
| |
| private: |
| QTextureAtlasDataPtr m_data; |
| Qt3DRender::QAbstractTexture::TextureFormat m_format; |
| QOpenGLTexture::PixelFormat m_pixelFormat; |
| int m_generation; |
| Qt3DCore::QNodeId m_atlasId; |
| }; |
| typedef QSharedPointer<QTextureAtlasGenerator> QTextureAtlasGeneratorPtr; |
| |
| } // namespace Qt3DExtras |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT3DEXTRAS_QTEXTUREATLAS_P_P_H |