Function droid_swap_buffers may get called without dri2_surf->buffer set,
in these cases we don't have a back buffer set either. Patch fixes segfault
seen with 3DMark that uses android.opengl.GLSurfaceView for rendering it's UI.
backtrace:
#00 pc 00013f88 /system/lib/egl/libGLES_mesa.so (droid_swap_buffers+104)
#01 pc 000117b2 /system/lib/egl/libGLES_mesa.so (dri2_swap_buffers+50)
#02 pc 000058b2 /system/lib/egl/libGLES_mesa.so (eglSwapBuffers+386)
#03 pc 00011329 /system/lib/libEGL.so (eglSwapBuffersWithDamageKHR+553)
#04 pc 000118e7 /system/lib/libEGL.so (eglSwapBuffers+55)
#05 pc 000754dc /system/lib/libandroid_runtime.so
Fixes: 2acc69d ("EGL/Android: Add EGL_EXT_buffer_age extension")
Signed-off-by: Tapani Pälli <tapani.pa...@intel.com>
---
src/egl/drivers/dri2/platform_android.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/egl/drivers/dri2/platform_android.c
b/src/egl/drivers/dri2/platform_android.c
index 14e13b8..d2769b8 100644
--- a/src/egl/drivers/dri2/platform_android.c
+++ b/src/egl/drivers/dri2/platform_android.c
@@ -634,7 +634,9 @@ droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp,
_EGLSurface *draw)
if (dri2_surf->color_buffers[i].age > 0)
dri2_surf->color_buffers[i].age++;
}
- dri2_surf->back->age = 1;
+
+ if (dri2_surf->back)
+ dri2_surf->back->age = 1;
dri2_flush_drawable_for_swapbuffers(disp, draw);
--
2.9.3
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