[Webkit-unassigned] [Bug 76654] New: WebGL must allocate smaller drawing buffer if allocation fails

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=76654

           Summary: WebGL must allocate smaller drawing buffer if
                    allocation fails
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGL
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: kbr at google.com
                CC: cmarrin at apple.com, zmo at google.com, twiz at chromium.org,
                    yongsheng.zhu at intel.com
        Depends on: 76239


Per http://www.khronos.org/registry/webgl/specs/latest/#2.2 ("The Drawing Buffer"), the WebGL implementation must allocate a drawing buffer with a smaller than requested width and height if the requested size could not be allocated. The fix for Bug 76239 exposes a problem where the reallocation is not being retried.

I recall that zmo implemented this functionality once in Chromium's command buffer port, but I believe it needs to be reimplemented now after the conversion to DrawingBuffer.

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