18 lines
296 B
JavaScript
18 lines
296 B
JavaScript
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'use strict';
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function isBMP (buffer) {
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return ('BM' === buffer.toString('ascii', 0, 2));
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}
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function calculate (buffer) {
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return {
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'width': buffer.readUInt32LE(18),
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'height': Math.abs(buffer.readInt32LE(22))
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};
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}
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module.exports = {
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'detect': isBMP,
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'calculate': calculate
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};
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