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Issue #2008 - Fix lint errors for src/jpx.js

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Jon Buckley 2013-01-31 18:32:40 -05:00
parent bc94a4d353
commit 21f0ff1dcf
1 changed files with 29 additions and 28 deletions
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57
src/jpx.js
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@ -1,5 +1,6 @@
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
/* globals error, globalScope, warn */
/* Copyright 2012 Mozilla Foundation /* Copyright 2012 Mozilla Foundation
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
@ -43,7 +44,7 @@ var JpxImage = (function JpxImageClosure() {
xhr.send(null); xhr.send(null);
}, },
parse: function JpxImage_parse(data) { parse: function JpxImage_parse(data) {
function ReadUint(data, offset, bytes) { function readUint(data, offset, bytes) {
var n = 0; var n = 0;
for (var i = 0; i < bytes; i++) for (var i = 0; i < bytes; i++)
n = n * 256 + (data[offset + i] & 0xFF); n = n * 256 + (data[offset + i] & 0xFF);
@ -52,15 +53,15 @@ var JpxImage = (function JpxImageClosure() {
var position = 0, length = data.length; var position = 0, length = data.length;
while (position < length) { while (position < length) {
var headerSize = 8; var headerSize = 8;
var lbox = ReadUint(data, position, 4); var lbox = readUint(data, position, 4);
var tbox = ReadUint(data, position + 4, 4); var tbox = readUint(data, position + 4, 4);
position += headerSize; position += headerSize;
if (lbox == 1) { if (lbox == 1) {
lbox = ReadUint(data, position, 8); lbox = readUint(data, position, 8);
position += 8; position += 8;
headerSize += 8; headerSize += 8;
} }
if (lbox == 0) if (lbox === 0)
lbox = length - position + headerSize; lbox = length - position + headerSize;
if (lbox < headerSize) if (lbox < headerSize)
error('JPX error: Invalid box field size'); error('JPX error: Invalid box field size');
@ -289,7 +290,7 @@ var JpxImage = (function JpxImageClosure() {
tile.partsCount = data[position + 9]; tile.partsCount = data[position + 9];
context.mainHeader = false; context.mainHeader = false;
if (tile.partIndex == 0) { if (tile.partIndex === 0) {
// reset component specific settings // reset component specific settings
tile.COD = context.COD; tile.COD = context.COD;
tile.COC = context.COC.slice(0); // clone of the global COC tile.COC = context.COC.slice(0); // clone of the global COC
@ -300,7 +301,7 @@ var JpxImage = (function JpxImageClosure() {
break; break;
case 0xFF93: // Start of data (SOD) case 0xFF93: // Start of data (SOD)
var tile = context.currentTile; var tile = context.currentTile;
if (tile.partIndex == 0) { if (tile.partIndex === 0) {
initializeTile(context, tile.index); initializeTile(context, tile.index);
buildPackets(context); buildPackets(context);
} }
@ -631,7 +632,7 @@ var JpxImage = (function JpxImageClosure() {
resolutions.push(resolution); resolutions.push(resolution);
var subband; var subband;
if (r == 0) { if (r === 0) {
// one sub-band (LL) with last decomposition // one sub-band (LL) with last decomposition
subband = {}; subband = {};
subband.type = 'LL'; subband.type = 'LL';
@ -733,7 +734,7 @@ var JpxImage = (function JpxImageClosure() {
} }
function readCodingpasses() { function readCodingpasses() {
var value = readBits(1); var value = readBits(1);
if (value == 0) if (value === 0)
return 1; return 1;
value = (value << 1) | readBits(1); value = (value << 1) | readBits(1);
if (value == 0x02) if (value == 0x02)
@ -853,7 +854,7 @@ var JpxImage = (function JpxImageClosure() {
var codeblock = codeblocks[i]; var codeblock = codeblocks[i];
var blockWidth = codeblock.tbx1_ - codeblock.tbx0_; var blockWidth = codeblock.tbx1_ - codeblock.tbx0_;
var blockHeight = codeblock.tby1_ - codeblock.tby0_; var blockHeight = codeblock.tby1_ - codeblock.tby0_;
if (blockWidth == 0 || blockHeight == 0) if (blockWidth === 0 || blockHeight === 0)
continue; continue;
if (!('data' in codeblock)) if (!('data' in codeblock))
continue; continue;
@ -905,7 +906,7 @@ var JpxImage = (function JpxImageClosure() {
var n = (bitModel.coefficentsSign[position] ? -1 : 1) * var n = (bitModel.coefficentsSign[position] ? -1 : 1) *
bitModel.coefficentsMagnitude[position]; bitModel.coefficentsMagnitude[position];
var nb = bitModel.bitsDecoded[position], correction; var nb = bitModel.bitsDecoded[position], correction;
if (transformation == 0 || mb > nb) { if (transformation === 0 || mb > nb) {
// use r only if transformation is irreversible or // use r only if transformation is irreversible or
// not all bitplanes were decoded for reversible transformation // not all bitplanes were decoded for reversible transformation
n += n < 0 ? n - r : n > 0 ? n + r : 0; n += n < 0 ? n - r : n > 0 ? n + r : 0;
@ -974,7 +975,7 @@ var JpxImage = (function JpxImageClosure() {
} }
var transformation = codingStyleParameters.transformation; var transformation = codingStyleParameters.transformation;
var transform = transformation == 0 ? new IrreversibleTransform() : var transform = transformation === 0 ? new IrreversibleTransform() :
new ReversibleTransform(); new ReversibleTransform();
var result = transform.calculate(subbandCoefficients, var result = transform.calculate(subbandCoefficients,
component.tcx0, component.tcy0); component.tcx0, component.tcy0);
@ -1304,7 +1305,7 @@ var JpxImage = (function JpxImageClosure() {
return d; return d;
} else { } else {
this.chigh -= qeIcx; this.chigh -= qeIcx;
if ((this.a & 0x8000) == 0) { if ((this.a & 0x8000) === 0) {
var d = this.exchangeMps(cx); var d = this.exchangeMps(cx);
this.renormD(); this.renormD();
return d; return d;
@ -1315,14 +1316,14 @@ var JpxImage = (function JpxImageClosure() {
}, },
renormD: function ArithmeticDecoder_renormD() { renormD: function ArithmeticDecoder_renormD() {
do { do {
if (this.ct == 0) if (this.ct === 0)
this.byteIn(); this.byteIn();
this.a <<= 1; this.a <<= 1;
this.chigh = ((this.chigh << 1) & 0xFFFF) | ((this.clow >> 15) & 1); this.chigh = ((this.chigh << 1) & 0xFFFF) | ((this.clow >> 15) & 1);
this.clow = (this.clow << 1) & 0xFFFF; this.clow = (this.clow << 1) & 0xFFFF;
this.ct--; this.ct--;
} while ((this.a & 0x8000) == 0); } while ((this.a & 0x8000) === 0);
}, },
exchangeMps: function ArithmeticDecoder_exchangeMps(cx) { exchangeMps: function ArithmeticDecoder_exchangeMps(cx) {
var d; var d;
@ -1558,12 +1559,12 @@ var JpxImage = (function JpxImageClosure() {
// significant but not those that have just become // significant but not those that have just become
if (!coefficentsMagnitude[index] || if (!coefficentsMagnitude[index] ||
(processingFlags[index] & processedMask) != 0) (processingFlags[index] & processedMask) !== 0)
continue; continue;
var contextLabel = 16; var contextLabel = 16;
if ((processingFlags[index] & if ((processingFlags[index] &
firstMagnitudeBitMask) != 0) { firstMagnitudeBitMask) !== 0) {
processingFlags[i * width + j] ^= firstMagnitudeBitMask; processingFlags[i * width + j] ^= firstMagnitudeBitMask;
// first refinement // first refinement
var significance = neighborsSignificance[index]; var significance = neighborsSignificance[index];
@ -1604,14 +1605,14 @@ var JpxImage = (function JpxImageClosure() {
// using the property: labels[neighborsSignificance[index]] == 0 // using the property: labels[neighborsSignificance[index]] == 0
// when neighborsSignificance[index] == 0 // when neighborsSignificance[index] == 0
var allEmpty = i0 + 3 < height && var allEmpty = i0 + 3 < height &&
processingFlags[index0] == 0 && processingFlags[index0] === 0 &&
processingFlags[index0 + oneRowDown] == 0 && processingFlags[index0 + oneRowDown] === 0 &&
processingFlags[index0 + twoRowsDown] == 0 && processingFlags[index0 + twoRowsDown] === 0 &&
processingFlags[index0 + threeRowsDown] == 0 && processingFlags[index0 + threeRowsDown] === 0 &&
neighborsSignificance[index0] == 0 && neighborsSignificance[index0] === 0 &&
neighborsSignificance[index0 + oneRowDown] == 0 && neighborsSignificance[index0 + oneRowDown] === 0 &&
neighborsSignificance[index0 + twoRowsDown] == 0 && neighborsSignificance[index0 + twoRowsDown] === 0 &&
neighborsSignificance[index0 + threeRowsDown] == 0; neighborsSignificance[index0 + threeRowsDown] === 0;
var i1 = 0, index = index0; var i1 = 0, index = index0;
var cx, i; var cx, i;
if (allEmpty) { if (allEmpty) {
@ -1647,7 +1648,7 @@ var JpxImage = (function JpxImageClosure() {
break; break;
if (coefficentsMagnitude[index] || if (coefficentsMagnitude[index] ||
(processingFlags[index] & processedMask) != 0) (processingFlags[index] & processedMask) !== 0)
continue; continue;
var contextLabel = labels[neighborsSignificance[index]]; var contextLabel = labels[neighborsSignificance[index]];
@ -1733,7 +1734,7 @@ var JpxImage = (function JpxImageClosure() {
for (var v = 0; v < height; v++) { for (var v = 0; v < height; v++) {
if (width == 1) { if (width == 1) {
// if width = 1, when u0 even keep items as is, when odd divide by 2 // if width = 1, when u0 even keep items as is, when odd divide by 2
if ((u0 % 1) != 0) { if ((u0 % 1) !== 0) {
items[v * width] /= 2; items[v * width] /= 2;
} }
continue; continue;
@ -1768,7 +1769,7 @@ var JpxImage = (function JpxImageClosure() {
for (var u = 0; u < width; u++) { for (var u = 0; u < width; u++) {
if (height == 1) { if (height == 1) {
// if height = 1, when v0 even keep items as is, when odd divide by 2 // if height = 1, when v0 even keep items as is, when odd divide by 2
if ((v0 % 1) != 0) { if ((v0 % 1) !== 0) {
items[u] /= 2; items[u] /= 2;
} }
continue; continue;