Sakurai/pdf.js
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fix other cases of reading this.buffer before ensureBuffer, too

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This commit is contained in:
Andreas Gal 2011-06-22 02:35:42 -04:00
parent 3f713de5fe
commit d1809be1ec
1 changed files with 4 additions and 9 deletions
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pdf.js
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@ -603,10 +603,8 @@ var PredictorStream = (function() {
var rowBytes = this.rowBytes; var rowBytes = this.rowBytes;
var pixBytes = this.pixBytes; var pixBytes = this.pixBytes;
var buffer = this.buffer;
var bufferLength = this.bufferLength; var bufferLength = this.bufferLength;
this.ensureBuffer(bufferLength + rowBytes); var buffer this.ensureBuffer(bufferLength + rowBytes);
var currentRow = buffer.subarray(bufferLength, bufferLength + rowBytes); var currentRow = buffer.subarray(bufferLength, bufferLength + rowBytes);
var bits = this.bits; var bits = this.bits;
@ -672,8 +670,7 @@ var PredictorStream = (function() {
var rawBytes = this.stream.getBytes(rowBytes); var rawBytes = this.stream.getBytes(rowBytes);
var bufferLength = this.bufferLength; var bufferLength = this.bufferLength;
this.ensureBuffer(bufferLength + pixBytes); var buffer = this.ensureBuffer(bufferLength + pixBytes);
var buffer = this.buffer;
var currentRow = buffer.subarray(bufferLength, bufferLength + rowBytes); var currentRow = buffer.subarray(bufferLength, bufferLength + rowBytes);
var prevRow = buffer.subarray(bufferLength - rowBytes, bufferLength); var prevRow = buffer.subarray(bufferLength - rowBytes, bufferLength);
@ -802,8 +799,7 @@ var Ascii85Stream = (function() {
// special code for z // special code for z
if (c == zCode) { if (c == zCode) {
this.ensureBuffer(bufferLength + 4); var buffer = this.ensureBuffer(bufferLength + 4);
var buffer = this.buffer;
for (var i = 0; i < 4; ++i) for (var i = 0; i < 4; ++i)
buffer[bufferLength + i] = 0; buffer[bufferLength + i] = 0;
this.bufferLength += 4; this.bufferLength += 4;
@ -820,8 +816,7 @@ var Ascii85Stream = (function() {
if (!c || c == tildaCode) if (!c || c == tildaCode)
break; break;
} }
this.ensureBuffer(bufferLength + i - 1); var buffer = this.ensureBuffer(bufferLength + i - 1);
var buffer = this.buffer;
this.bufferLength += i - 1; this.bufferLength += i - 1;
// partial ending; // partial ending;