[Webkit-unassigned] [Bug 164540] New: HLS WebGL video textures produces faulty colour rendering in IOS 10

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Nov 9 03:55:59 PST 2016


            Bug ID: 164540
           Summary: HLS WebGL video textures produces faulty colour
                    rendering in IOS 10
    Classification: Unclassified
           Product: WebKit
           Version: Safari 10
          Hardware: iPhone / iPad
                OS: iOS 10
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: electroteque at gmail.com
                CC: dino at apple.com, edwin.cen at camdora.me,
                    webkit-bug-importer at group.apple.com

Regarding #163866

I am separating this into a different ticket but they might be related to the FlipY bug. 

I was able to successfully test the HLS webGL rendering on an Iphone after the FlipY work arounds. The simulator was causing similar colour faults, but when using the RGBA format flag, the output I see on the Iphone is the same regardless which RGB format is used. 

The colours are rendering incorrect. Using this code

gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, video);

If there is a quick fix work around rather waiting months for fixes that could be a start. 

So such HLS webgl output is only partially working on IOS 10 not IOS 9. Many devices are stuck on 9 now like my Ipad 3. I need to find a work around for 9.



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