Sakurai/pdf.js
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use strict equalities in src/core/jpx.js

Browse Source
This commit is contained in:
Tim van der Meij 2014-08-01 22:56:11 +02:00
parent 2796d1bf10
commit 5d0fde4a2c
1 changed files with 13 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/core/jpx.js
View File

@ -88,7 +88,7 @@ var JpxImage = (function JpxImageClosure() {
newByte = stream.getByte(); newByte = stream.getByte();
var code = (oldByte << 8) | newByte; var code = (oldByte << 8) | newByte;
// Image and tile size (SIZ) // Image and tile size (SIZ)
if (code == 0xFF51) { if (code === 0xFF51) {
stream.skip(4); stream.skip(4);
var Xsiz = stream.getInt32() >>> 0; // Byte 4 var Xsiz = stream.getInt32() >>> 0; // Byte 4
var Ysiz = stream.getInt32() >>> 0; // Byte 8 var Ysiz = stream.getInt32() >>> 0; // Byte 8
@ -179,13 +179,13 @@ var JpxImage = (function JpxImageClosure() {
default: default:
throw new Error('JPX Error: Invalid SQcd value ' + sqcd); throw new Error('JPX Error: Invalid SQcd value ' + sqcd);
} }
qcd.noQuantization = (spqcdSize == 8); qcd.noQuantization = (spqcdSize === 8);
qcd.scalarExpounded = scalarExpounded; qcd.scalarExpounded = scalarExpounded;
qcd.guardBits = sqcd >> 5; qcd.guardBits = sqcd >> 5;
spqcds = []; spqcds = [];
while (j < length + position) { while (j < length + position) {
var spqcd = {}; var spqcd = {};
if (spqcdSize == 8) { if (spqcdSize === 8) {
spqcd.epsilon = data[j++] >> 3; spqcd.epsilon = data[j++] >> 3;
spqcd.mu = 0; spqcd.mu = 0;
} else { } else {
@ -231,13 +231,13 @@ var JpxImage = (function JpxImageClosure() {
default: default:
throw new Error('JPX Error: Invalid SQcd value ' + sqcd); throw new Error('JPX Error: Invalid SQcd value ' + sqcd);
} }
qcc.noQuantization = (spqcdSize == 8); qcc.noQuantization = (spqcdSize === 8);
qcc.scalarExpounded = scalarExpounded; qcc.scalarExpounded = scalarExpounded;
qcc.guardBits = sqcd >> 5; qcc.guardBits = sqcd >> 5;
spqcds = []; spqcds = [];
while (j < (length + position)) { while (j < (length + position)) {
spqcd = {}; spqcd = {};
if (spqcdSize == 8) { if (spqcdSize === 8) {
spqcd.epsilon = data[j++] >> 3; spqcd.epsilon = data[j++] >> 3;
spqcd.mu = 0; spqcd.mu = 0;
} else { } else {
@ -550,7 +550,7 @@ var JpxImage = (function JpxImageClosure() {
var codeblocks = subband.codeblocks; var codeblocks = subband.codeblocks;
for (var j = 0, jj = codeblocks.length; j < jj; j++) { for (var j = 0, jj = codeblocks.length; j < jj; j++) {
var codeblock = codeblocks[j]; var codeblock = codeblocks[j];
if (codeblock.precinctNumber != precinctNumber) { if (codeblock.precinctNumber !== precinctNumber) {
continue; continue;
} }
precinctCodeblocks.push(codeblock); precinctCodeblocks.push(codeblock);
@ -752,7 +752,7 @@ var JpxImage = (function JpxImageClosure() {
buffer = (buffer << 8) | b; buffer = (buffer << 8) | b;
bufferSize += 8; bufferSize += 8;
} }
if (b == 0xFF) { if (b === 0xFF) {
skipNextBit = true; skipNextBit = true;
} }
} }
@ -1259,7 +1259,7 @@ var JpxImage = (function JpxImageClosure() {
level.index = index; level.index = index;
var value = level.items[index]; var value = level.items[index];
if (value == 0xFF) { if (value === 0xFF) {
break; break;
} }
@ -1337,8 +1337,8 @@ var JpxImage = (function JpxImageClosure() {
this.width = width; this.width = width;
this.height = height; this.height = height;
this.contextLabelTable = (subband == 'HH' ? HHContextLabel : this.contextLabelTable = (subband === 'HH' ? HHContextLabel :
(subband == 'HL' ? HLContextLabel : LLAndLHContextsLabel)); (subband === 'HL' ? HLContextLabel : LLAndLHContextsLabel));
var coefficientCount = width * height; var coefficientCount = width * height;
@ -1576,8 +1576,8 @@ var JpxImage = (function JpxImageClosure() {
var checkAllEmpty = i0 + 3 < height; var checkAllEmpty = i0 + 3 < height;
for (var j = 0; j < width; j++) { for (var j = 0; j < width; j++) {
var index0 = indexBase + j; var index0 = indexBase + j;
// using the property: labels[neighborsSignificance[index]] == 0 // using the property: labels[neighborsSignificance[index]] === 0
// when neighborsSignificance[index] == 0 // when neighborsSignificance[index] === 0
var allEmpty = (checkAllEmpty && var allEmpty = (checkAllEmpty &&
processingFlags[index0] === 0 && processingFlags[index0] === 0 &&
processingFlags[index0 + oneRowDown] === 0 && processingFlags[index0 + oneRowDown] === 0 &&
@ -1646,7 +1646,7 @@ var JpxImage = (function JpxImageClosure() {
(decoder.readBit(contexts, UNIFORM_CONTEXT) << 2) | (decoder.readBit(contexts, UNIFORM_CONTEXT) << 2) |
(decoder.readBit(contexts, UNIFORM_CONTEXT) << 1) | (decoder.readBit(contexts, UNIFORM_CONTEXT) << 1) |
decoder.readBit(contexts, UNIFORM_CONTEXT); decoder.readBit(contexts, UNIFORM_CONTEXT);
if (symbol != 0xA) { if (symbol !== 0xA) {
throw new Error('JPX Error: Invalid segmentation symbol'); throw new Error('JPX Error: Invalid segmentation symbol');
} }
} }