Qt与symbian特定格式类对象的转换

1：FbsBitmap转为QImage

应用场景：当使用摄像头时：拍摄的图像都是FBsBitmap,而如果要想让其显示在QWidget上，则需要首先将其转换成QImage格式。

参数说明：aBitmap是传入参数，aImage是传出参数，当动态拍摄(相当于摄像)时：aStep为4; 当capture拍摄静态图片时：aStep为3.

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void FbsBitmapToQImage(CFbsBitmap* aBitmap,QImage* aImage,TInt aStep)

{

int aHeight=aBitmap->SizeInPixels().iHeight;

int aWidth=aBitmap->SizeInPixels().iWidth;

aBitmap->BeginDataAccess();

unsigned char* ptrBitmapPixel=(unsigned char*)(aBitmap->DataAddress()); //0xBBGGRRff

unsigned char* ptrImagePixel=aImage->scanLine(0); //0xBBGGRRff;

for(int i=0;i< p>

{

for(int j=0;j< p>

{

*(ptrImagePixel+2)=

char((int)(*(ptrBitmapPixel+2))/tmp); //Red

*(ptrImagePixel+1)=

char((int)(*(ptrBitmapPixel+1))/tmp); //Green

*(ptrImagePixel+0)=

char((int)(*(ptrBitmapPixel+0))/tmp); //Blue

ptrBitmapPixel+=aStep;

ptrImagePixel+=4;

}

}

aBitmap->EndDataAccess();

}

void FbsBitmapToQImage(CFbsBitmap* aBitmap,QImage* aImage,TInt aStep)

{

int aHeight=aBitmap->SizeInPixels().iHeight;

int aWidth=aBitmap->SizeInPixels().iWidth;

aBitmap->BeginDataAccess();

unsigned char* ptrBitmapPixel=(unsigned char*)(aBitmap->DataAddress()); //0xBBGGRRff

unsigned char* ptrImagePixel=aImage->scanLine(0); //0xBBGGRRff;

for(int i=0;i< p>

{

for(int j=0;j< p>

{

*(ptrImagePixel+2)=

char((int)(*(ptrBitmapPixel+2))/tmp); //Red