25267957022

Committed 03 May 2026 02:40AM UTC coverage: 99.538% (+0.001%) from 99.537%

Build # 25267957022

Build Type

push

github

Committed by

puzrin

Commit Message

lint fix: semi

Coverage Stats

707 of 713 branches covered (99.16%)

772 of 777 new or added lines in 27 files covered. (99.36%)

1078 of 1083 relevant lines covered (99.54%)

329.76 hits per line

Source File
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94.44

/lib/parse_sync/bmp.js

'use strict'


var str2arr = require('../common').str2arr
var sliceEq = require('../common').sliceEq
var readInt16LE = require('../common').readInt16LE
var readInt32LE = require('../common').readInt32LE
var readUInt32LE = require('../common').readUInt32LE

var SIG_BM = str2arr('BM')


module.exports = function (data) {
  if (data.length < 26) return

  if (!sliceEq(data, 0, SIG_BM)) return

  var h
  var w
  var headerSize = readUInt32LE(data, 14)

  if (headerSize === 12) {
    // BMP v2 header
    w = readInt16LE(data, 18)
    h = readInt16LE(data, 20)
  } else if (headerSize > 12) {
    // BMP v3+ header
    w = readInt32LE(data, 18)
    h = readInt32LE(data, 22)
  } else {
    // BPM v1 and other garbage (10 bytes usually)
    return
  }

  return {
    width: w,
    // Height can be negative to indicate a top-down bitmap
    height: Math.abs(h),
    type: 'bmp',
    mime: 'image/bmp',
    wUnits: 'px',
    hUnits: 'px'
  }
}

1	'use strict'
2
3
4	var str2arr = require('../common').str2arr	4✔
5	var sliceEq = require('../common').sliceEq	4✔
6	var readInt16LE = require('../common').readInt16LE	4✔
7	var readInt32LE = require('../common').readInt32LE	4✔
8	var readUInt32LE = require('../common').readUInt32LE	4✔
9
10	var SIG_BM = str2arr('BM')	4✔
11
12
13	module.exports = function (data) {	4✔
14	if (data.length < 26) return	70✔
15
16	if (!sliceEq(data, 0, SIG_BM)) return	52✔
17
18	var h
19	var w
20	var headerSize = readUInt32LE(data, 14)	2✔
21
22	if (headerSize === 12) {	2✔
23	// BMP v2 header
24	w = readInt16LE(data, 18)	1✔
25	h = readInt16LE(data, 20)	1✔
26	} else if (headerSize > 12) {	1!
27	// BMP v3+ header
28	w = readInt32LE(data, 18)	1✔
29	h = readInt32LE(data, 22)	1✔
30	} else {
31	// BPM v1 and other garbage (10 bytes usually)
NEW 32	return	×
33	}
34
35	return {	2✔
36	width: w,
37	// Height can be negative to indicate a top-down bitmap
38	height: Math.abs(h),
39	type: 'bmp',
40	mime: 'image/bmp',
41	wUnits: 'px',
42	hUnits: 'px'
43	}
44	}

nodeca / probe-image-size / 25267957022

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