Bug 222268 – Videos do not work as sources for WebGL TexImage calls in SW fallback case in GPU Process

• Status: RESOLVED
• Resolution: DUPLICATE
• Component: Media

[Kimmo Kinnunen]

Videos do not work as sources for WebGL TexImage calls in SW fallback case in GPU Process

void MediaPlayerPrivateRemote::paintCurrentFrameInContext(GraphicsContext&, const FloatRect&)
{
    notImplemented();
}

[Kimmo Kinnunen]

Options to fix:
1) Implement readback in MediaPlayerPrivateRemote::paintCurrentFrameInContext
2) Move the ImageBuffer -> Texture logic from WebGLRenderingContextBase to GraphicsContextGL

2 is better long term

[Radar WebKit Bug Importer]

<rdar://problem/74706834>

[Kimmo Kinnunen]

For option 2:
The work is to convert 
void WebGLRenderingContextBase::texImageImpl(TexImageFunctionID functionID, GCGLenum target, GCGLint level, GCGLenum internalformat, GCGLint xoffset, GCGLint yoffset, GCGLint zoffset, GCGLenum format, GCGLenum type, Image* image, GraphicsContextGL::DOMSource domSource, bool flipY, bool premultiplyAlpha, bool ignoreNativeImageAlphaPremultiplication, const IntRect& sourceImageRect, GCGLsizei depth, GCGLint unpackImageHeight)

to run on GPU process side resources.

Essentially converting Image* image to GPU process side resource.

However, that function _also_ needs to stay mostly working with Web process side resources, since some of the cases are such that probably no reasonable GPU process side resource exist.

[Jer Noble]

This was likely fixed by r273568, which will pull images across the process boundary when painting/texturing occurs there.

[Peng Liu]

*** This bug has been marked as a duplicate of bug 222461 ***