"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/image/PNGConverter.java" between
pdfbox-2.0.23-src.zip and pdfbox-2.0.24-src.zip

About: Apache PDFBox is a Java PDF library tool that allows creation of new PDF documents, manipulation of existing documents and the ability to extract content from documents.

PNGConverter.java  (pdfbox-2.0.23-src)	:	PNGConverter.java  (pdfbox-2.0.24-src)
skipping to change at line 241		skipping to change at line 241
PDImageXObject image = buildImageObject(doc, state);		PDImageXObject image = buildImageObject(doc, state);
if (image == null)		if (image == null)
{		{
return null;		return null;
}		}
int highVal = (plte.length / 3) - 1;		int highVal = (plte.length / 3) - 1;
if (highVal > 255)		if (highVal > 255)
{		{
LOG.error(String.format("To much colors in PLTE, only 256 allowed, f ound %d colors.",		LOG.error(String.format("Too much colors in PLTE, only 256 allowed, found %d colors.",
highVal + 1));		highVal + 1));
return null;		return null;
}		}
setupIndexedColorSpace(doc, plte, image, highVal);		setupIndexedColorSpace(doc, plte, image, highVal);
if (state.tRNS != null)		if (state.tRNS != null)
{		{
image.getCOSObject().setItem(COSName.SMASK,		image.getCOSObject().setItem(COSName.SMASK,
buildTransparencyMaskFromIndexedData(doc, image, state));		buildTransparencyMaskFromIndexedData(doc, image, state));
skipping to change at line 282		skipping to change at line 282
new ByteArrayInputStream(decodedIDAT));		new ByteArrayInputStream(decodedIDAT));
try		try
{		{
int bitsPerComponent = state.bitsPerComponent;		int bitsPerComponent = state.bitsPerComponent;
int w = 0;		int w = 0;
int neededBits = bitsPerComponent * state.width;		int neededBits = bitsPerComponent * state.width;
int bitPadding = neededBits % 8;		int bitPadding = neededBits % 8;
for (int i = 0; i < bytes.length; i++)		for (int i = 0; i < bytes.length; i++)
{		{
int idx = (int) iis.readBits(bitsPerComponent);		int idx = (int) iis.readBits(bitsPerComponent);
byte v;
if (idx < transparencyTable.length)		if (idx < transparencyTable.length)
{		{
// Inside the table, use the transparency value		// Inside the table, use the transparency value
v = transparencyTable[idx];		bytes[i] = transparencyTable[idx];
}		}
else		else
{		{
// Outside the table -> transparent value is 0xFF here.		// Outside the table -> transparent value is 0xFF here.
v = (byte) 0xFF;		bytes[i] = (byte) 0xFF;
}		}
bytes[i] = v;
w++;		w++;
if (w == state.width)		if (w == state.width)
{		{
w = 0;		w = 0;
iis.readBits(bitPadding);		iis.readBits(bitPadding);
}		}
}		}
}		}
finally		finally
{		{
End of changes. 5 change blocks.
5 lines changed or deleted		3 lines changed or added

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