tree 834b5904ce5a530f968dcb818f0533fde4faaaa5
parent 7f45e7c1822fd583dd0c9776cb2c1e8d4aa6cb54
author David 'Digit' Turner <digit@android.com> 1314372550 +0200
committer David 'Digit' Turner <digit@android.com> 1314372718 +0200

emulator: opengl: fallback gralloc module

This patch modifies the gralloc.goldfish module to check
that the emulator does, indeed, support GPU emulation.

If this is not the case, it loads the framebuffer-based fallback
module (gralloc.default) explicitely and uses it instead.

This is necessary because sometimes the emulator will be started
in headless mode in restricted environment, i.e. without access
to the display subsystem or GL libraries, which make GPU emulation
impossible.

We check for ro.kernel.qemu.gles which will be either undefined
or set to 0 if the emulator doesn't support GPU emulation, or 1
otherwise.

Change-Id: Ib6b143e6dcdfb44ff2c5b889138d0fb4118bb461