gl-renderer: repaint_output() fixes
This fixes a few repaint_output() issues with regards to debug modes in the GL renderer. It also prevents calling eglSetDamageRegion() on surfaceless outputs which isn't allowed.
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This fixes a few repaint_output() issues with regards to debug modes in the GL renderer. It also prevents calling eglSetDamageRegion() on surfaceless outputs which isn't allowed.