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16 lines
521 B
JavaScript
16 lines
521 B
JavaScript
function convertToFileData(data) {
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var bpsl = (data.getImageDataWidth() + 3) / 4;
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var bytes = [];
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var offset = 0;
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for (var y = 0; y < data.getImageDataHeight(); y++) {
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for (var x = 0; x < data.getImageDataWidth(); x = x + 4) {
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var c1,c2,c3,c4;
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c1 = data.getPixel(x, y) & 0x3;
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c2 = data.getPixel(x+1, y) & 0x3;
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c3 = data.getPixel(x+2, y) & 0x3;
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c4 = data.getPixel(x+3, y) & 0x3;
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bytes[offset++] = c1 << 6 | c2 << 4 | c3 << 2 | c4;
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}
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}
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data.setTargetFileObject(0, bytes);
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} |