[Webkit-unassigned] [Bug 113493] Enhance the restrictions on going through the faster hardware path for uploading Canvas2D to WebGL

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=113493





--- Comment #10 from Gregg Tavares <gman at chromium.org>  2013-03-30 12:16:47 PST ---
The reason we don't use copyTexImage2D is it only handles 1 chase and not even well. The Problem with copyTexImage2D are:

No support for UNPACK_FLIP_Y_WEBGL            
No support for UNPACK_PREMULTIPLY_ALPHA_WEBGL 
No support for choosing the destination type

I'm not sure what's trying to be fixed here. My plan was to try to make CopyTextureCHROMIUM have a some corresponding function like IsCopyTextureFormatSupportedCHROMIUM(
    source_level, dest_level, dest_format, dest_type)

So that knowing if a format/type/level combo can use CopyTextureCHROMIUM would be encapsulated but I haven't gotten around to it.

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