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Merge pull request #9980 from Snuffleupagus/paintInline-Uint8ClampedArray

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Ensure that `Uint8ClampedArray` is used for image data transfered by `getTransfers` (PR 9802 follow-up)
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Tim van der Meij 2018-08-16 23:25:31 +02:00 committed by GitHub
commit 160ca55163
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1 changed files with 8 additions and 2 deletions
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src/core/operator_list.js
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@ -13,7 +13,7 @@
* limitations under the License.
*/
import { ImageKind, OPS } from '../shared/util';
import { assert, ImageKind, OPS } from '../shared/util';
var QueueOptimizer = (function QueueOptimizerClosure() {
function addState(parentState, pattern, checkFn, iterateFn, processFn) {
@ -116,7 +116,7 @@ var QueueOptimizer = (function QueueOptimizerClosure() {
}
var imgWidth = Math.max(maxX, currentX) + IMAGE_PADDING;
var imgHeight = currentY + maxLineHeight + IMAGE_PADDING;
var imgData = new Uint8Array(imgWidth * imgHeight * 4);
var imgData = new Uint8ClampedArray(imgWidth * imgHeight * 4);
var imgRowSize = imgWidth << 2;
for (q = 0; q < count; q++) {
var data = argsArray[iFirstPIIXO + (q << 2)][0].data;
@ -543,6 +543,12 @@ var OperatorList = (function OperatorListClosure() {
case OPS.paintInlineImageXObjectGroup:
case OPS.paintImageMaskXObject:
var arg = argsArray[i][0]; // first param in imgData
if (typeof PDFJSDev === 'undefined' ||
PDFJSDev.test('!PRODUCTION || TESTING')) {
assert(arg.data instanceof Uint8ClampedArray,
'OperatorList - getTransfers: Unsupported "arg.data" type.');
}
if (!arg.cached) {
transfers.push(arg.data.buffer);
}