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Re: TIFFWriteDirectory() fails on network drive


On Jan 31 14:17, Hsu, Justine wrote:
> The attached program tries to save a blank 64 x 64 TIFF image to specified path.
> When the path specified is local, the images saves fine.
> If the path is on a network drive on a Windows7, then it saves a corrupt file, even after applying this hotfix http://support.microsoft.com/kb/2732673 
> Here is the relevant code:
> 
> ÂÂÂ ÂÂÂÂconst int dim = 64;
> ÂÂÂ ÂÂÂÂconst int channels = 3;
> 
> ÂÂÂ ÂÂÂÂTIFF *tif = TIFFOpen(argv[1], "w");
> ÂÂÂÂÂÂÂ TIFFSetField(tif, TIFFTAG_IMAGEWIDTH,ÂÂÂÂÂ dim);
> ÂÂÂÂÂÂÂ TIFFSetField(tif, TIFFTAG_IMAGELENGTH,ÂÂÂÂ dim);
> ÂÂÂÂÂÂÂ TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, channels);
> ÂÂÂÂÂÂÂ TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP,ÂÂÂ 1);
> ÂÂÂÂÂÂÂ TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE,ÂÂ 8);
> ÂÂÂÂÂÂÂ TIFFSetField(tif, TIFFTAG_PLANARCONFIG,ÂÂÂ 1);
> ÂÂÂÂÂÂÂ TIFFSetField(tif, TIFFTAG_PHOTOMETRIC,ÂÂÂÂ PHOTOMETRIC_RGB);
> ÂÂÂÂÂÂÂ TIFFSetField(tif, TIFFTAG_COMPRESSION,ÂÂÂÂ COMPRESSION_LZW);
> ÂÂÂÂÂÂÂ 
> ÂÂÂÂÂÂÂÂint i;
> ÂÂÂÂÂÂÂ for (i = 0; i < dim; i++)
> ÂÂÂÂÂÂÂ {
> ÂÂÂÂÂÂÂÂÂÂÂ TIFFWriteScanline(tif, buf + dim*channels*(dim - i - 1), i, 0);
> ÂÂÂÂÂÂ Â}
> 
> ÂÂÂÂÂÂ ÂTIFFWriteDirectory(tif);
> ÂÂÂÂÂÂÂ TIFFClose(tif);

And this question is is Cygwin-related, because...?


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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