egl/android: Use gralloc::lock_ycbcr for resolving YUV formats (v2)

There is an interface that can be used to query YUV buffers for their
internal format. Specifically, if gralloc:lock_ycbcr() is given no SW
usage flags, it's supposed to return plane offsets instead of pointers.
Let's use this interface to implement support for YUV formats in Android
EGL backend.

v2: Fixes from Emil's review:
 a) Added comments for parts that might be not clear,
 b) Changed get_fourcc_yuv() to return -1 on failure,
 c) Changed is_yuv() to use bool.

Signed-off-by: Tomasz Figa <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]>

0 files changed, 0 insertions, 0 deletions