Hi Peter,
I suggest to use the Core Image Import:
CGImageSourceRef imageSource =
CGImageSourceCreateWithURL((CFURLRef)[NSURL fileURLWithPath:path],
NULL);
....
That does handle CMYK, too.
Thorsten
> Von: Peter Krajčík <pkraj...@sunteq.sk>
> Datum: Mon, 18 Oct 2010 14:53:10 +0200
> An: <cocoa-dev@lists.apple.com>
> Betreff: CMYK Text of Photoshop Layer rendered incorrectly
>
> Hi,
>
> I am reading Photoshop layer images using this approach:
>
> (simplified code)
>
> for (i=0; i <= imageCount; i++)
> {
> unsigned long offset, size;
> GraphicsImportSetImageIndex(importer, i);
> GraphicsImportGetDataOffsetAndSize(importer, &offset, &size);
>
> // create a Graphics Exporter component that will write Photoshop data
> OSErr err =
> OpenADefaultComponent(GraphicsExporterComponentType,kQTFileTypePhotoShop,
> &exporter);
>
> if (err == noErr)
> {
> // set export parameters
> Handle bmpDataH = NewHandle(0);
> GraphicsExportSetInputGraphicsImporter(exporter, importer);
> GraphicsExportSetOutputHandle(exporter, bmpDataH);
>
> // export data to BMP into handle
> unsigned long actualSizeWritten = 0;
> err = GraphicsExportDoExport(exporter, &actualSizeWritten);
>
> if (err == noErr)
> {
>
> HLock(bmpDataH);
>
> //create a simple image with the tiff data, without the bound
> information, its rep will stored to layer as CGImageRef
> id image = [CIImage imageWithData:[NSData
> dataWithBytes:*bmpDataHlength:GetHandleSize(bmpDataH)]];
> NSBitmapImageRep* rep = [[[NSBitmapImageRep alloc]
> initWithCIImage:image]autorelease];
>
> CGImageRef imageRef = rep.CGImage;
> self.layerImage =CGImageRetain(imageRef);
> HUnlock(bmpDataH);
> }
>
> DisposeHandle(bmpDataH);
> CloseComponent(exporter);
> }
>
> }
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