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fix(png): Fix crash for writing large PNGs with alpha #4074

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Dec 13, 2023
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fix(png): Fix crash for writing large PNGs with alpha #4074

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2 changes: 1 addition & 1 deletion src/png.imageio/pngoutput.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -385,7 +385,7 @@ PNGOutput::write_scanlines(int ybegin, int yend, int z, TypeDesc format,
unassoc_scratch.reset(new float[nvals]);
float* floatvals = unassoc_scratch.get();
// Contiguize and convert to float
OIIO::convert_image(m_spec.nchannels, m_spec.width, m_spec.height, 1,
OIIO::convert_image(m_spec.nchannels, m_spec.width, yend - ybegin, 1,
data, format, xstride, ystride, AutoStride,
floatvals, TypeFloat, AutoStride, AutoStride,
AutoStride);
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