swblt.h

Lido PXA270平台开发板的最新BSP,包括源代码

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
/*


*/
#ifndef __SWBLT_H__
#define __SWBLT_H__



class PixelIterator
{
public:
	// Fixed upon creation:
	unsigned char		*RowPtr;
	int					RowIncrement;
	unsigned long		CacheStateNewDWord;
	unsigned long		CacheStateNewRow;
	unsigned long		CacheStateIncrement;
	unsigned long		CacheStateIncrementDirty;
	int					Is24Bit;
	unsigned long		Mask;
	int					BytesPerAccess;
	int					Bpp;
	unsigned char		MaskShiftXor;
	// IteratorState
	unsigned char		*Ptr;
	unsigned long		Cache;
	unsigned long		Value;
	unsigned long		CacheState;
	void				InitPixelIterator(
							GPESurf *pSurf,
							int xPositive,
							int yPositive,
							RECTL *prcl,
							int xSkip,
							int ySkip );
};

class BrushPixelIterator : public PixelIterator
{
public:
	int					PixelsRemaining;			// Pixels still available this row of brush incl cache
	int					PixelsPerRow;				// Width of source surface
	int					RowInitialPixelsRemaining;	// PixelsRemaining at start of each Dst row
	int					RowsRemaining;				// Rows (incl this) left in pattern
	int					Rows;						// Total rows in pattern
	int					LeftPixelOffset;			// Byte offset from the beginning of the row to LeftRowPtr
	unsigned char		*FirstRowPtr;				// Pointer to first DWord to use in top/bottom row
	unsigned char		*LeftRowPtr;				// Ptr to *left* of pattern of current row
													//		(RowPtr is *start* of next row)
	void				InitBrushPixelIterator(
							GPESurf *pSurf,
							int xPositive,
							int yPositive,
							RECTL *prcl );

};



extern  unsigned long ProcessROP3(
	unsigned long dstValue,
	unsigned long srcValue,
	unsigned long brushValue,
	unsigned char rop3,
	unsigned char dstBitsPerPixel);

#endif // __SWBLT_H__