Closed Bug 320510 Opened 15 years ago Closed 13 years ago
Canvas renders gif image with mask incorrectly
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20051215 Firefox/1.6a1 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20051215 Firefox/1.6a1 When inserting an gif image with a transparency mask canvas renders the mask incorrectly, it looks as though it is inverting the x-axis starting point of the mask and the edges of the image are displayed in a jagged sissor pattern. Reproducible: Always Steps to Reproduce: 1. var testimg = new Image(); 2. testimg.src = "images/test.gif"; 3. ctx.drawImage(testimg,50,50,214,214);
attach testcase please
Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a1) Gecko/20051220 Firefox/1.6a1 ID:2005122023 Confirmed ->New
Status: UNCONFIRMED → NEW
Ever confirmed: true
*** Bug 330478 has been marked as a duplicate of this bug. ***
Note also bug 332454.
This seems fixed for me in 1.8.1 (Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:1.8.1b1) Gecko/20060710 Firefox/2.0b1). The test cases in bug 330478 and bug 332454 also work. Probably related to "the handling of 1-bit images is horked (bits are packed backwards). I'll fix." comment in bug 329598.
*** Bug 332454 has been marked as a duplicate of this bug. ***
Fixed in trunk
Status: NEW → RESOLVED
Closed: 13 years ago
Resolution: --- → WORKSFORME
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