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42 #ifndef QQUICKCONTEXT2DTEXTURE_P_H
43 #define QQUICKCONTEXT2DTEXTURE_P_H
45 #include <QtQuick/qsgtexture.h>
46 #include "qquickcanvasitem_p.h"
47 #include "qquickcontext2d_p.h"
49 #include <QOpenGLContext>
50 #include <QOpenGLFramebufferObject>
52 #include <QtCore/QMutex>
53 #include <QtCore/QWaitCondition>
54 #include <QtCore/QThread>
60 class QQuickContext2DTile;
61 class QQuickContext2DCommandBuffer;
63 class QQuickContext2DTexture : public QSGDynamicTexture
67 QQuickContext2DTexture();
68 ~QQuickContext2DTexture();
70 virtual bool hasAlphaChannel() const {return true;}
71 virtual bool hasMipmaps() const {return false;}
72 virtual QSize textureSize() const;
73 virtual QQuickCanvasItem::RenderTarget renderTarget() const = 0;
74 static QRect tiledRect(const QRectF& window, const QSize& tileSize);
76 bool setCanvasSize(const QSize &size);
77 bool setTileSize(const QSize &size);
78 bool setCanvasWindow(const QRect& canvasWindow);
79 void setSmooth(bool smooth);
80 bool setDirtyRect(const QRect &dirtyRect);
81 bool canvasDestroyed();
84 void textureChanged();
87 void markDirtyTexture();
88 void setItem(QQuickCanvasItem* item);
89 void canvasChanged(const QSize& canvasSize, const QSize& tileSize, const QRect& canvasWindow, const QRect& dirtyRect, bool smooth);
90 void paint(QQuickContext2DCommandBuffer *ccb);
91 virtual void grabImage(const QRectF& region = QRectF()) = 0;
94 void paintWithoutTiles(QQuickContext2DCommandBuffer *ccb);
95 virtual QPaintDevice* beginPainting() {m_painting = true; return 0; }
96 virtual void endPainting() {m_painting = false;}
97 virtual QQuickContext2DTile* createTile() const = 0;
98 virtual void compositeTile(QQuickContext2DTile* tile) = 0;
101 virtual QSize adjustedTileSize(const QSize &ts);
102 QRect createTiles(const QRect& window);
104 QList<QQuickContext2DTile*> m_tiles;
105 QQuickContext2D* m_context;
107 QQuickContext2D::State m_state;
109 QQuickCanvasItem* m_item;
112 QRect m_canvasWindow;
114 uint m_dirtyCanvas : 1;
115 uint m_canvasWindowChanged : 1;
116 uint m_dirtyTexture : 1;
118 uint m_tiledCanvas : 1;
122 class QQuickContext2DFBOTexture : public QQuickContext2DTexture
127 QQuickContext2DFBOTexture();
128 ~QQuickContext2DFBOTexture();
129 virtual int textureId() const;
130 virtual bool updateTexture();
131 virtual QQuickContext2DTile* createTile() const;
132 virtual QPaintDevice* beginPainting();
133 virtual void endPainting();
134 QRectF normalizedTextureSubRect() const;
135 virtual QQuickCanvasItem::RenderTarget renderTarget() const;
136 virtual void compositeTile(QQuickContext2DTile* tile);
138 QSize adjustedTileSize(const QSize &ts);
141 virtual void grabImage(const QRectF& region = QRectF());
144 bool doMultisampling() const;
145 QOpenGLFramebufferObject *m_fbo;
146 QOpenGLFramebufferObject *m_multisampledFbo;
148 QWaitCondition m_condition;
150 QPaintDevice *m_paint_device;
153 class QSGPlainTexture;
154 class QQuickContext2DImageTexture : public QQuickContext2DTexture
159 QQuickContext2DImageTexture();
160 ~QQuickContext2DImageTexture();
161 virtual int textureId() const;
164 virtual QQuickCanvasItem::RenderTarget renderTarget() const;
166 virtual bool updateTexture();
167 virtual QQuickContext2DTile* createTile() const;
168 virtual QPaintDevice* beginPainting();
169 virtual void compositeTile(QQuickContext2DTile* tile);
172 virtual void grabImage(const QRectF& region = QRectF());
175 QSGPlainTexture *imageTexture() const;
178 QSGPlainTexture* m_texture;
185 #endif // QQUICKCONTEXT2DTEXTURE_P_H