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Ensure vips_thumbnail doesn't send an axis to 0 (#2416)

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Kleis Auke Wolthuizen 2021-09-05 12:58:44 +02:00 committed by GitHub
parent b62287a792
commit 632badabe1
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1 changed files with 5 additions and 4 deletions
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9
libvips/resample/thumbnail.c
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@ -443,6 +443,11 @@ vips_thumbnail_calculate_shrink( VipsThumbnail *thumbnail,
*hshrink = VIPS_MAX( 1, *hshrink );
*vshrink = VIPS_MAX( 1, *vshrink );
}
/* We don't want to shrink so much that we send an axis to 0.
*/
*hshrink = VIPS_MIN( *hshrink, input_width );
*vshrink = VIPS_MIN( *vshrink, input_height );
}
/* Just the common part of the shrink: the bit by which both axes must be
@ -461,10 +466,6 @@ vips_thumbnail_calculate_common_shrink( VipsThumbnail *thumbnail,
shrink = VIPS_MIN( hshrink, vshrink );
/* We don't want to shrink so much that we send an axis to 0.
*/
shrink = VIPS_MIN( shrink, VIPS_MIN( width, height ) );
return( shrink );
}