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Fix issue #65 (single pixel png causes an error) (#72)

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Xin-Xin Wang 2017-02-15 12:19:32 -05:00 committed by Luke Page
parent 3ad37374e3
commit e3bef7d1a6
1 changed files with 8 additions and 3 deletions
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11
lib/bitmapper.js
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@ -105,10 +105,15 @@ function mapImage8Bit(image, pxData, getPxPos, bpp, data, rawPos) { // eslint-di
for (var i = 0; i < 4; i++) {
var idx = pixelBppMap[bpp][i];
if (i === data.length) {
throw new Error('Ran out of data');
if (idx === 0xff) {
pxData[pxPos + i] = 0xff;
} else {
var dataPos = idx + rawPos;
if (dataPos === data.length) {
throw new Error('Ran out of data');
}
pxData[pxPos + i] = data[dataPos];
}
pxData[pxPos + i] = idx !== 0xff ? data[idx + rawPos] : 0xff;
}
rawPos += bpp; //eslint-disable-line no-param-reassign
}