Bug 1667621 Comment 10 Edit History

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Original comment by
on 
WebRender doesn't seem to support HDR yet (bug 1539685): bug 1493198 only added HDR to SDR conversion to WebRender ([Ctrl+F HDR](https://mozillagfx.wordpress.com/2019/08/19/moz-gfx-newsletter-47/)).

This line requests RGBA8888: https://searchfox.org/mozilla-central/rev/7e36862b61622889b28492d60564dbab1e6d8bbf/gfx/gl/GLContextProviderEGL.cpp#876
And this line seems to require RGBA8888 otherwise CreateConfig seems to fail: https://searchfox.org/mozilla-central/rev/7e36862b61622889b28492d60564dbab1e6d8bbf/gfx/gl/GLContextProviderEGL.cpp#928
Could 2 bit alpha be requested and no alpha be required, so that the [RGB10_A2 egl fb config](https://pastebin.com/raw/uTjurKzx) could have matched? That was the only one with alpha. Does WebRender need to support HDR before doing such a change?
Revision 1 by
on 
WebRender doesn't seem to support HDR yet (bug 1539685): bug 1493198 only added HDR to SDR conversion to WebRender ([Ctrl+F HDR](https://mozillagfx.wordpress.com/2019/08/19/moz-gfx-newsletter-47/)).

This line requests RGBA8888: https://searchfox.org/mozilla-central/rev/7e36862b61622889b28492d60564dbab1e6d8bbf/gfx/gl/GLContextProviderEGL.cpp#876
And this line seems to require RGBA8888 otherwise CreateConfig seems to fail: https://searchfox.org/mozilla-central/rev/7e36862b61622889b28492d60564dbab1e6d8bbf/gfx/gl/GLContextProviderEGL.cpp#928
Could 2 bit alpha be requested and no alpha be required, so that the [RGB10_A2 egl fb config](https://pastebin.com/raw/uTjurKzx) could have matched? That was the only one with alpha on the X11 platform. Does WebRender need to support HDR before doing such a change?

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