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+/*************************************************************************
+ *
+ * $RCSfile: bitmapdevice.hxx,v $
+ *
+ * $Revision: 1.1 $
+ *
+ * last change: $Author: thb $ $Date: 2006-05-31 09:49:41 $
+ *
+ * The Contents of this file are made available subject to the terms of
+ * either of the following licenses
+ *
+ * - GNU Lesser General Public License Version 2.1
+ * - Sun Industry Standards Source License Version 1.1
+ *
+ * Sun Microsystems Inc., October, 2000
+ *
+ * GNU Lesser General Public License Version 2.1
+ * =============================================
+ * Copyright 2000 by Sun Microsystems, Inc.
+ * 901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ ************************************************************************/
+
+#ifndef INCLUDED_BASEBMP_BITMAPDEVICE_HXX
+#define INCLUDED_BASEBMP_BITMAPDEVICE_HXX
+
+#ifndef _SAL_TYPES_H_
+#include <sal/types.h>
+#endif
+#ifndef INCLUDED_BASEBMP_DRAWMODES_HXX
+#include "drawmodes.hxx"
+#endif
+
+#include <boost/scoped_ptr.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/noncopyable.hpp>
+
+
+/* What to do first:
+
+ 1,8,24 bpp, with blt, fill/drawPolygon, drawLine & get/setPixel
+
+ Then:
+
+ all other formats, top down vs. bottom up
+
+ Last:
+
+ Modulation, clip
+
+ */
+
+namespace basegfx
+{
+ class B2IPoint;
+ class B2DPoint;
+ class B2IVector;
+ class B2IRange;
+ class B2DPolygon;
+ class B2DPolyPolygon;
+}
+
+namespace basebmp
+{
+
+// Temporary. Use like the tools color object
+class Color;
+typedef boost::shared_ptr< class BitmapDevice > BitmapDeviceSharedPtr;
+typedef boost::shared_ptr< sal_uInt8 > RawMemorySharedPtr;
+
+struct ImplBitmapDevice;
+
+/** Definition of BitmapDevice interface
+
+ Use createBitmapDevice() factory method to create one instance.
+
+ Implementation note: the clip mask and bitmap parameter instances
+ of BitmapDevice that are passed to individual BitmapDevice
+ instances work best with 1 bit MSB masks for the clip and a format
+ matching that of the target BitmapDevice for the other
+ parameters. Everything else is accepted, but potentially slow.
+ */
+class BitmapDevice : private boost::noncopyable
+{
+public:
+ /** Query size of device in pixel
+ */
+ basegfx::B2IVector getSize() const;
+
+ /** Query whether buffer starts with 0th scanline
+
+ @return true, if the buffer memory starts with the 0th
+ scanline, and false if it starts with the last
+ */
+ bool isTopDown() const;
+
+ /** Query type of scanline memory format
+ */
+ sal_Int32 getScanlineFormat() const;
+
+ /** Query byte offset to get from scanline n to scanline n+1
+
+ @return the scanline stride in bytes. In the case of
+ bottom-first formats, this offset will be negative.
+ */
+ sal_Int32 getScanlineStride() const;
+
+ /** Get pointer to frame buffer
+ */
+ RawMemorySharedPtr getBuffer() const;
+
+ /** Get pointer to palette
+
+ @return pointer to array of getPaletteEntryCount() Color
+ entries, if this is a palette format. If not, NULL is
+ returned.
+ */
+ const Color* getPalette() const;
+
+ /** Query number of palette entries
+ */
+ const sal_Int32 getPaletteEntryCount() const;
+
+ /** Clear whole device with given color
+ */
+ void clear( Color fillColor );
+
+ /** Set given pixel to specified color
+
+ @param rPt
+ Pixel to set
+
+ @param pixelColor
+ Color value to set the pixel to
+
+ @param drawMode
+ Draw mode to use when changing the pixel value
+ */
+ void setPixel( const basegfx::B2IPoint& rPt,
+ Color pixelColor,
+ DrawMode drawMode );
+
+ /** Set given pixel to specified color
+
+ @param rPt
+ Pixel to set
+
+ @param pixelColor
+ Color value to set the pixel to
+
+ @param drawMode
+ Draw mode to use when changing the pixel value
+
+ @param rClip
+ Clip mask to use. If the clip mask is 0 at the given pixel
+ position, no change will happen.
+ */
+ void setPixel( const basegfx::B2IPoint& rPt,
+ Color pixelColor,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip );
+
+ /** Get color value at given pixel
+ */
+ Color getPixel( const basegfx::B2IPoint& rPt );
+
+ /** Draw a line
+
+ @param rPt1
+ Start point of the line
+
+ @param rPt2
+ End point of the line. If the analytical line from rP1 to rPt2
+ (with the actual pixel positions are assumed to be the center
+ of the pixel) is exactly in the middle between two pixel, this
+ method always selects the pixel closer to rPt1.
+
+ @param lineColor
+ Color value to draw the line with
+
+ @param drawMode
+ Draw mode to use when changing the pixel value
+ */
+ void drawLine( const basegfx::B2IPoint& rPt1,
+ const basegfx::B2IPoint& rPt2,
+ Color lineColor,
+ DrawMode drawMode );
+
+ /** Draw a line
+
+ @param rPt1
+ Start point of the line
+
+ @param rPt2
+ End point of the line. If the analytical line from rP1 to rPt2
+ (with the actual pixel positions are assumed to be the center
+ of the pixel) is exactly in the middle between two pixel, this
+ method always selects the pixel closer to rPt1.
+
+ @param lineColor
+ Color value to draw the line with
+
+ @param drawMode
+ Draw mode to use when changing the pixel value
+
+ @param rClip
+ Clip mask to use. Pixel where the corresponding clip mask
+ pixel is 0 will not be touched.
+ */
+ void drawLine( const basegfx::B2IPoint& rPt1,
+ const basegfx::B2IPoint& rPt2,
+ Color lineColor,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip );
+
+ void drawPolygon( const basegfx::B2DPolygon& rPoly,
+ Color lineColor,
+ DrawMode drawMode );
+ void drawPolygon( const basegfx::B2DPolygon& rPoly,
+ Color lineColor,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip );
+
+ void fillPolyPolygon( const basegfx::B2DPolyPolygon& rPoly,
+ Color fillColor,
+ DrawMode drawMode );
+ void fillPolyPolygon( const basegfx::B2DPolyPolygon& rPoly,
+ Color fillColor,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip );
+
+ void drawBitmap( const BitmapDeviceSharedPtr& rSrcBitmap,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IRange& rDstRect,
+ DrawMode drawMode );
+ void drawBitmap( const BitmapDeviceSharedPtr& rSrcBitmap,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IRange& rDstRect,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip );
+
+ void drawMaskedColor( Color rSrcColor,
+ const BitmapDeviceSharedPtr& rAlphaMask,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IPoint& rDstPoint );
+ void drawMaskedColor( Color rSrcColor,
+ const BitmapDeviceSharedPtr& rAlphaMask,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IPoint& rDstPoint,
+ const BitmapDeviceSharedPtr& rClip );
+
+ void drawMaskedBitmap( const BitmapDeviceSharedPtr& rSrcBitmap,
+ const BitmapDeviceSharedPtr& rMask,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IRange& rDstRect,
+ DrawMode drawMode );
+ void drawMaskedBitmap( const BitmapDeviceSharedPtr& rSrcBitmap,
+ const BitmapDeviceSharedPtr& rMask,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IRange& rDstRect,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip );
+
+protected:
+ BitmapDevice( const basegfx::B2IVector& rSize,
+ bool bTopDown,
+ sal_Int32 nScanlineFormat,
+ sal_Int32 nScanlineStride,
+ const RawMemorySharedPtr& rMem );
+
+ virtual ~BitmapDevice();
+
+private:
+ virtual bool isCompatibleBitmap( const BitmapDeviceSharedPtr& bmp ) const = 0;
+ virtual bool isCompatibleClipMask( const BitmapDeviceSharedPtr& bmp ) const = 0;
+ virtual bool isCompatibleAlphaMask( const BitmapDeviceSharedPtr& bmp ) const = 0;
+
+ virtual const Color* getPalette_i() const = 0;
+ virtual const sal_Int32 getPaletteEntryCount_i() const = 0;
+
+ virtual void clear_i( Color fillColor ) = 0;
+
+ virtual void setPixel_i( const basegfx::B2IPoint& rPt,
+ Color lineColor,
+ DrawMode drawMode ) = 0;
+ virtual void setPixel_i( const basegfx::B2IPoint& rPt,
+ Color lineColor,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip ) = 0;
+
+ virtual Color getPixel_i( const basegfx::B2IPoint& rPt ) = 0;
+
+ virtual void drawLine_i( const basegfx::B2DPoint& rPt1,
+ const basegfx::B2DPoint& rPt2,
+ Color lineColor,
+ DrawMode drawMode ) = 0;
+ virtual void drawLine_i( const basegfx::B2DPoint& rPt1,
+ const basegfx::B2DPoint& rPt2,
+ Color lineColor,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip ) = 0;
+
+ virtual void drawPolygon_i( const basegfx::B2DPolygon& rPoly,
+ Color lineColor,
+ DrawMode drawMode ) = 0;
+ virtual void drawPolygon_i( const basegfx::B2DPolygon& rPoly,
+ Color lineColor,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip ) = 0;
+
+ virtual void fillPolyPolygon_i( const basegfx::B2DPolyPolygon& rPoly,
+ Color fillColor,
+ DrawMode drawMode,
+ const basegfx::B2IRange& rBounds ) = 0;
+ virtual void fillPolyPolygon_i( const basegfx::B2DPolyPolygon& rPoly,
+ Color fillColor,
+ DrawMode drawMode,
+ const basegfx::B2IRange& rBounds,
+ const BitmapDeviceSharedPtr& rClip ) = 0;
+
+ // must work with *this == rSrcBitmap!
+ virtual void drawBitmap_i( const BitmapDeviceSharedPtr& rSrcBitmap,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IRange& rDstRect,
+ DrawMode drawMode ) = 0;
+ virtual void drawBitmap_i( const BitmapDeviceSharedPtr& rSrcBitmap,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IRange& rDstRect,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip ) = 0;
+
+ // must work with *this == rSrcBitmap!
+ virtual void drawMaskedColor_i( Color rSrcColor,
+ const BitmapDeviceSharedPtr& rAlphaMask,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IPoint& rDstPoint ) = 0;
+ virtual void drawMaskedColor_i( Color rSrcColor,
+ const BitmapDeviceSharedPtr& rAlphaMask,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IPoint& rDstPoint,
+ const BitmapDeviceSharedPtr& rClip ) = 0;
+
+ // must work with *this == rSrcBitmap!
+ virtual void drawMaskedBitmap_i( const BitmapDeviceSharedPtr& rSrcBitmap,
+ const BitmapDeviceSharedPtr& rMask,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IRange& rDstRect,
+ DrawMode drawMode ) = 0;
+ virtual void drawMaskedBitmap_i( const BitmapDeviceSharedPtr& rSrcBitmap,
+ const BitmapDeviceSharedPtr& rMask,
+ const basegfx::B2IRange& rSrcRect,
+ const basegfx::B2IRange& rDstRect,
+ DrawMode drawMode,
+ const BitmapDeviceSharedPtr& rClip ) = 0;
+
+ boost::scoped_ptr< ImplBitmapDevice > mpImpl;
+};
+
+/** Factory method to create a BitmapDevice for given scanline format
+ */
+BitmapDeviceSharedPtr createBitmapDevice( const basegfx::B2IVector& rSize,
+ bool bTopDown,
+ sal_Int32 nScanlineFormat );
+
+}
+
+#endif /* INCLUDED_BASEBMP_BITMAPDEVICE_HXX */
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