Use QSGPlainTexture::setImage() instead of generating our own texture.
Use QSGPlainTexture::setImage() instead of generating our own texture.

Takes care of swizzling based on whether we're on GL ES or not.

Tofee/qtwayland,locusf/qtwayland-1,locusf/qtwayland-1,ntanibata/qtwayland,Tofee/qtwayland,ntanibata/qtwayland,Tofee/qtwayland,locusf/qtwayland-1,ntanibata/qtwayland,locusf/qtwayland-1