hi,
I'm using palmOnePhoto library for creating jpeg images and also creating
thumbnails, previously I'm using the pnoJpeg lib for that purpose, but this
palmOnePhoto is much faster than that.. but there is one problem I'm getting is
that, its converting my pictures in a negative like images, not actually
negative some sort of color changes .. I'm using the device with 8 bit depth. i
tried by changing the screen mode and make it to 16bit ,then its clear
picture.. but changing the color depth cause my device crashing some times.. is
there any way to get clear picture in my 8 bit application..
plz help me to solve this... here I'm including the part where I'm using the
PalmOnePhoto conversions. spot me if there any prob in my code..
Err err=0;
UInt16 pLibRefNum;
PalmPhotoCreateParam createParam;
PalmPhotoReadWriteParam writeParam;
ImageData imageD; //Structure Type UInt16
*imgH;UInt32 offset;UInt16 rowBytes;Coord width;Coord height;
UInt32 density = 0;
PalmPhotoHandle addedPhotoHandleP = NULL,newPhotoH = NULL;
FormType *frmP = NULL;
Int16 photoWidth;
Int16 photoHeight;
UInt16 rowBytes;
FileHand newF;
Int32 fileSize,op,temFileSize,size;
Int8 *buf;
Char s[30];
UInt8 depth=0;
BitmapPtr bmpP;
Int16 width,height;
UInt16 rowByte;
WinHandle bwinH,temH;
depth = BmpGetBitDepth(bmpPtr);
if(depth!=16)
{
BmpGetDimensions(bmpPtr,&width,&height,&rowByte);
bmpP = BmpCreate(width,height,16,NULL,&err);
bwinH = WinCreateBitmapWindow(bmpP,&err);
temH = WinSetDrawWindow(bwinH);
WinDrawBitmap(bmpPtr,0,0);
bmpPtr = WinGetBitmap(bwinH);
bwinH = WinSetDrawWindow(temH);
WinDeleteWindow(bwinH,true);
//BmpDelete(bmpP);
}
imageD.imgH = (UInt16 *)BmpGetBits(bmpPtr);
imageD.offset = 0;
err = SysLibFind(PalmPhotoLibName, &pLibRefNum);
if(err)
err = SysLibLoad(PalmPhotoLibTypeID, PalmPhotoLibCreatorID,
&pLibRefNum);
if(!err)
PalmPhotoLibOpen(pLibRefNum);
BmpGetDimensions(bmpPtr,&photoWidth,&photoHeight,&rowBytes);
WinScreenGetAttribute(winScreenDensity, &density);
FileDelete(0, "palmLibTemp.jpg");
createParam.fileLocation.fileLocationType = palmPhotoStreamLocation;
StrCopy(createParam.fileLocation.file.StreamFile.name,
"palmLibTemp.jpg");
createParam.fileLocation.file.StreamFile.type = 0;
createParam.fileLocation.file.StreamFile.creator = 0;
if(density == kDensityDouble)
{
createParam.imageInfo.width = photoWidth ;//320;//
createParam.imageInfo.height =photoHeight; //320;//
}
else
{
createParam.imageInfo.width = photoWidth;
createParam.imageInfo.height = photoHeight;
}
createParam.imageInfo.bitsPerPixel = 16;
createParam.imageInfo.fileFormat = palmPhotoJPEGFileFormat;
createParam.imageInfo.imageQuality=palmPhotoHighestQuality;
// Create a new image and get the photo handle
newPhotoH = PalmPhotoCreateImage(pLibRefNum, &createParam, &err);
MemSet(&writeParam, sizeof(PalmPhotoReadWriteParam), 0);
writeParam.imageFormat = palmPhotoRGB565FileFormat;
writeParam.rwCallback = PalmPhotoWriteCallBack;
writeParam.userDataP = &imageD;
err = PalmPhotoWriteImage(pLibRefNum, newPhotoH, &writeParam);
PalmPhotoCloseImage(pLibRefNum, newPhotoH);
PalmPhotoLibClose(pLibRefNum);
SysLibRemove(pLibRefNum);
Display part
void displayJpeg(Coord x,Coord y,Coord mWidth,Coord mHeight)
{
PalmPhotoHandle photoH = NULL;
PalmPhotoFileLocation fileLocation;
UInt32 density = 0;
Err err;
PalmPhotoDisplayParam displayParam;
RectangleType displayRect;
Coord width=160, height=120;
PalmPhotoImageInfo imageInfo;
BitmapType *tmpbitmapP = NULL;
UInt16 pLibRefNum;
err = SysLibFind(PalmPhotoLibName, &pLibRefNum);
if(err)
err = SysLibLoad(PalmPhotoLibTypeID, PalmPhotoLibCreatorID,
&pLibRefNum);
if(!err)
PalmPhotoLibOpen(pLibRefNum);
fileLocation.fileLocationType = palmPhotoStreamLocation;
fileLocation.file.StreamFile.type = 0;
fileLocation.file.StreamFile.creator = 0;
StrCopy(fileLocation.file.StreamFile.name, "palmLibTemp.jpg");
photoH = PalmPhotoOpenImage(pLibRefNum, &fileLocation,&err);
err = PalmPhotoGetImageInfo(pLibRefNum, photoH, &imageInfo);
if ((!err) && (photoH))
{
if (!err)
{
displayRect.topLeft.x = x;
displayRect.topLeft.y = y;
if(density == kDensityDouble)
{
displayRect.extent.x = mWidth*2;//width;
displayRect.extent.y = mHeight*2;//height;
}
else
{
displayRect.extent.x = mWidth ;
displayRect.extent.y = mHeight;
}
displayParam.winH = NULL;
displayParam.rect = displayRect;
displayParam.displayCallback = NULL;
displayParam.userDataP = NULL;
err = PalmPhotoDisplayImage(pLibRefNum, photoH, &displayParam);
}
}
PalmPhotoCloseImage(pLibRefNum, photoH);
PalmPhotoLibClose(pLibRefNum);
SysLibRemove(pLibRefNum);
}
Sumesh..
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