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[GBM] Overzealous attaching of GL texture as color attachment to the …
…default framebuffer https://bugs.webkit.org/show_bug.cgi?id=241462 Patch by Žan Doberšek <firstname.lastname@example.org> on 2022-06-13 Reviewed by Alejandro G. Castro. In GraphicsContextGLGBM::prepareTexture(), there's no need to repeatedly reattach the texture objec to the default framebuffer. With GraphicsContextGLGBM this is only done when (re)sizing the framebuffer. The attached texture later isn't switched out for some other texture, it remains in place. What does change is the backing DMABuf-based EGLImage, which is updated upon the next make-context-current request. This means framebuffer operations here, after any required multisampling is resolved, are not required. Only thing that remains is the GL_Flush() call. * Source/WebCore/platform/graphics/gbm/GraphicsContextGLGBM.cpp: (WebCore::GraphicsContextGLGBM::prepareTexture): Canonical link: https://commits.webkit.org/251489@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@295484 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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