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Refactoring error reporting in JPX

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This commit is contained in:
Yury Delendik 2014-06-13 18:18:49 -05:00
parent 34298e4ba7
commit 9f51e46917
1 changed files with 17 additions and 14 deletions
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31
src/core/jpx.js
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@ -58,7 +58,7 @@ var JpxImage = (function JpxImageClosure() {
lbox = length - position + headerSize;
}
if (lbox < headerSize) {
throw 'JPX error: Invalid box field size';
throw new Error('JPX Error: Invalid box field size');
}
var dataLength = lbox - headerSize;
var jumpDataLength = true;
@ -104,7 +104,7 @@ var JpxImage = (function JpxImageClosure() {
return;
}
}
throw 'JPX error: No size marker found in JPX stream';
throw new Error('JPX Error: No size marker found in JPX stream');
},
parseCodestream: function JpxImage_parseCodestream(data, start, end) {
var context = {};
@ -177,7 +177,7 @@ var JpxImage = (function JpxImageClosure() {
scalarExpounded = true;
break;
default:
throw 'Invalid SQcd value ' + sqcd;
throw new Error('JPX Error: Invalid SQcd value ' + sqcd);
}
qcd.noQuantization = (spqcdSize == 8);
qcd.scalarExpounded = scalarExpounded;
@ -229,7 +229,7 @@ var JpxImage = (function JpxImageClosure() {
scalarExpounded = true;
break;
default:
throw 'Invalid SQcd value ' + sqcd;
throw new Error('JPX Error: Invalid SQcd value ' + sqcd);
}
qcc.noQuantization = (spqcdSize == 8);
qcc.scalarExpounded = scalarExpounded;
@ -313,8 +313,8 @@ var JpxImage = (function JpxImageClosure() {
}
if (unsupported.length > 0) {
doNotRecover = true;
throw 'Unsupported COD options (' + unsupported.join(', ') +
')';
throw new Error('JPX Error: Unsupported COD options (' +
unsupported.join(', ') + ')');
}
if (context.mainHeader) {
context.COD = cod;
@ -358,17 +358,19 @@ var JpxImage = (function JpxImageClosure() {
// skipping content
break;
case 0xFF53: // Coding style component (COC)
throw 'Codestream code 0xFF53 (COC) is not implemented';
throw new Error('JPX Error: Codestream code 0xFF53 (COC) is ' +
'not implemented');
default:
throw 'Unknown codestream code: ' + code.toString(16);
throw new Error('JPX Error: Unknown codestream code: ' +
code.toString(16));
}
position += length;
}
} catch (e) {
if (doNotRecover || this.failOnCorruptedImage) {
throw 'JPX error: ' + e;
throw e;
} else {
warn('JPX error: ' + e + '. Trying to recover');
warn('Trying to recover from ' + e.message);
}
}
this.tiles = transformComponents(context);
@ -596,7 +598,7 @@ var JpxImage = (function JpxImageClosure() {
}
r = 0;
}
throw 'Out of packets';
throw new Error('JPX Error: Out of packets');
};
}
function ResolutionLayerComponentPositionIterator(context) {
@ -636,7 +638,7 @@ var JpxImage = (function JpxImageClosure() {
}
l = 0;
}
throw 'Out of packets';
throw new Error('JPX Error: Out of packets');
};
}
function buildPackets(context) {
@ -731,7 +733,8 @@ var JpxImage = (function JpxImageClosure() {
new ResolutionLayerComponentPositionIterator(context);
break;
default:
throw 'Unsupported progression order ' + progressionOrder;
throw new Error('JPX Error: Unsupported progression order ' +
progressionOrder);
}
}
function parseTilePackets(context, data, offset, dataLength) {
@ -1644,7 +1647,7 @@ var JpxImage = (function JpxImageClosure() {
(decoder.readBit(contexts, UNIFORM_CONTEXT) << 1) |
decoder.readBit(contexts, UNIFORM_CONTEXT);
if (symbol != 0xA) {
throw 'Invalid segmentation symbol';
throw new Error('JPX Error: Invalid segmentation symbol');
}
}
};