a0612e41dd
opaque 32-bits windows are now allocated as RGBX_8888 buffers and SurfaceFlinger always uses GL_MODULATE instead of trying to optimize to GL_REPLACE when possible (makes no sense on h/w accelerated GL). we still have a small hack for devices that don't support RGBX_8888 in their gralloc implementation where we revert to RGBA_8888.