Webrender on android emulator fails to initialize
Categories
(Core :: Graphics: WebRender, defect, P3)
Tracking
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People
(Reporter: ktaeleman, Unassigned)
References
Details
Problem
On certain platforms (Linux with AMD for example), Webrender does not initialize on the android emulator even after forcing it as it requires OpenGL ES 3.0.
Google has added support for OpenGL ES 3.0 in Android Studio 3 (2017), but it is only whitelisted for specific devices/drivers.
Workaround
To force enable the emulator to allow OpenGL ES 3, you can run this on host:
echo "GLESDynamicVersion = on" >> ~/.android/advancedFeatures.ini
source: https://stackoverflow.com/questions/24874066/does-the-android-emulator-support-opengl-es-3-0
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Comment 1•5 years ago
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I wonder if this is also Bug 1584659? I will try to investigate.
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Comment 2•5 years ago
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If you use mach/mozharness to launch the emulator this should get taken care of:
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Updated•5 years ago
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Comment 3•5 years ago
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It obviously does work in automation, but I don't think it did work for me locally, using mach android-emulator to launch the emulator. I notice that code writes the file to SDK root dir, whereas Kris' command (which worked for me) writes it to ~/. android. I don't recall having to use it on my old desktop, but I definitely did on my new one. So I'm pretty confused. Maybe I'm misremembering, or my old desktop's drivers were whitelisted, or maybe the presence of ~/.android or an env dir is making it look there rather than SDK root. 🤷🏻♂️
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Comment 4•5 years ago
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Actually, I'm guessing ./mach android-emulator won't set the use_gles3 flag? Isn't that set by the test harness only when --enable-webrender is used?
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Comment 5•5 years ago
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Ah yes, that's true. Might need to expose that via a ./mach android-emulator option.
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Updated•5 years ago
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Updated•4 years ago
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Updated•2 years ago
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Comment 6•6 months ago
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I just set up a fresh workstation, and ./mach bootstrap, ./mach android-emulator gives me an emulator with ES3. I guess older computers might not get this by default, but people should be able to find the workaround. And we have been using the workaround on CI for ages. So I think we can close this.
Description
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