Revise IAllocator and IMapper to reduce IPC and to support gralloc0
devices.
Specifically, IAllocator is trimmed down to have essentially only
allocate(BufferDescriptor descriptor, uint32_t count)
generates (Error error,
uint32_t stride,
vec<handle> buffers);
The ability to allocate buffers with shared backing store is
removed. ProducerUsage and ConsumerUsage are moved to the
graphics.common package and are merged and renamed to BufferUsage.
BufferUsage's bits follow gralloc0.
IMapper gains
typedef vec<uint32_t> BufferDescriptor;
createDescriptor(BufferDescriptorInfo descriptorInfo)
generates (Error error,
BufferDescriptor descriptor);
where BufferDescriptor is an implementation-defined blob. lockFlex
is replaced by lockYCbCr. All getters are removed.
Reference counting with retain/release is replaced by
importBuffer/freeBuffer.
Most if not all gralloc1 features are not used by the runtime yet.
There is also not too much test written for them. As such, they
tend to behave differently between implementations and cannot be
used reliably.
Bug: 36481301
Test: builds and boots on Pixel
Change-Id: I1d31105120517ea2c128c7a19297acf3bfd312bb
Rewrite libgralloc1-adapter to be based on Gralloc1On0Adapter.
Previously, the adapter targeted maximum portability and maximum
performance. The rewritten adapter targets ease of use instead.
This also fixes a bug in the adapter's GRALLOC1_FUNCTION_RELEASE. The
function does not imply native_handle_close/native_handle_delete. As a
result, IMapper and IComposer are also fixed to close/delete handles.
Test: builds and boots
Change-Id: I5c071453dc950583087ae07967bca2c22866c538
The default implementatoin is built on top of conventional gralloc1.
Test: make android.hardware.graphics.mapper.hallib
Change-Id: I8647dc69dbb1637a141d36358d5769f450422ac1
