Adding the blitter paint engine

1 files changed, 94 insertions, 0 deletions

diff --git a/src/gui/painting/qpaintengine_blitter_p.h b/src/gui/painting/qpaintengine_blitter_p.h
new file mode 100644
index 0000000..90493a4
--- /dev/null
+++ b/src/gui/painting/qpaintengine_blitter_p.h
@@ -0,0 +1,94 @@
+#ifndef QPAINTENGINE_BLITTER_P_H
+#define QPAINTENGINE_BLITTER_P_H
+
+#include "private/qpaintengineex_p.h"
+
+class QRasterPaintEngine;
+class QBlittablePrivate;
+class QBlitterPaintEnginePrivate;
+
+// ### find name
+class Q_GUI_EXPORT QBlittable
+{
+    Q_DECLARE_PRIVATE(QBlittable);
+public:
+    enum Capability {
+
+        SolidRectCapability             = 0x0001,
+        SourcePixmapCapability          = 0x0002,
+        SourceOverPixmapCapability      = 0x0004,
+        SourceOverScaledPixmapCapability = 0x0008,
+
+        // Internal ones
+        OutlineCapability               = 0x0001000,
+    };
+    Q_DECLARE_FLAGS(Capabilities, Capability);
+
+    QBlittable(Capabilities caps);
+    virtual ~QBlittable();
+
+    Capabilities capabilities() const;
+
+    virtual void fillRect(const QRectF &rect, const QColor &color) = 0;
+    virtual void drawPixmap(const QRectF &rect, const QPixmap &pixmap, const QRectF &subrect) = 0;
+
+    virtual QImage *lock() = 0;
+    virtual void unlock() = 0;
+
+protected:
+    QBlittablePrivate *d_ptr;
+
+    QBlittable(QBlittablePrivate &d, Capabilities caps);
+};
+
+
+class Q_GUI_EXPORT QBlitterPaintEngine : public QPaintEngineEx
+{
+    Q_DECLARE_PRIVATE(QBlitterPaintEngine);
+public:
+    QBlitterPaintEngine(QPaintDevice *p);
+    ~QBlitterPaintEngine();
+
+    virtual QPainterState *createState(QPainterState *orig) const;
+
+    virtual QPaintEngine::Type type() const { return Blitter; }
+
+    virtual bool begin(QPaintDevice *pdev);
+    virtual bool end();
+
+    virtual void fill(const QVectorPath &path, const QBrush &brush);
+    virtual void stroke(const QVectorPath &path, const QPen &pen);
+
+    virtual void clip(const QVectorPath &path, Qt::ClipOperation op);
+    virtual void clip(const QRect &rect, Qt::ClipOperation op);
+    virtual void clip(const QRegion &region, Qt::ClipOperation op);
+
+    virtual void clipEnabledChanged();
+    virtual void penChanged();
+    virtual void brushChanged();
+    virtual void brushOriginChanged();
+    virtual void opacityChanged();
+    virtual void compositionModeChanged();
+    virtual void renderHintsChanged();
+    virtual void transformChanged();
+
+    virtual void fillRect(const QRectF &rect, const QBrush &brush);
+    virtual void fillRect(const QRectF &rect, const QColor &color);
+
+    virtual void drawRects(const QRect *rects, int rectCount);
+    virtual void drawRects(const QRectF *rects, int rectCount);
+
+    virtual void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr);
+
+    virtual void drawImage(const QRectF &r, const QImage &pm, const QRectF &sr, Qt::ImageConversionFlags flags);
+
+    virtual void drawTextItem(const QPointF &pos, const QTextItem &ti);
+
+    virtual void setState(QPainterState *s);
+
+    inline QPainterState *state() { return static_cast<QPainterState *>(QPaintEngine::state); }
+    inline const QPainterState *state() const { return static_cast<const QPainterState *>(QPaintEngine::state); }
+
+};
+
+#endif // QPAINTENGINE_BLITTER_P_H