Commit Graph

2 Commits

Author SHA1 Message Date
Chia-I Wu
2d02d91f7f graphics: fix gralloc1 usage flags in default impl
BufferUsage::SENSOR_DIRECT_DATA should be filtered out for consumer
usage.  BufferUsage::GPU_DATA_BUFFER should be filtered out for
producer usage and be translated to
GRALLOC1_CONSUMER_USAGE_GPU_DATA_BUFFER for consumer usage.

Bug: 62491483
Test: boots
Change-Id: I171712adf45ae80dadeed7997fb9872ff176fa1a
2017-06-12 15:19:42 -07:00
Chia-I Wu
79d13ff0f5 graphics: revise gralloc interfaces
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
2017-04-10 11:15:54 -07:00