AHARDWAREBUFFER_USAGE_CPU_READ_NEVER

The buffer will never be read by the CPU.

The buffer will sometimes be read by the CPU.

The buffer will often be read by the CPU.

CPU read value mask.

The buffer will never be written by the CPU.

The buffer will sometimes be written to by the CPU.

The buffer will often be written to by the CPU.

CPU write value mask.

The buffer will be read from by the GPU as a texture.

The buffer will be written to by the GPU as a framebuffer attachment. Note that the name of this flag is somewhat misleading: it does not imply that the buffer contains a color format. A buffer with depth or stencil format that will be used as a framebuffer attachment should also have this flag.

The buffer must not be used outside of a protected hardware path.

The buffer will be read by a hardware video encoder.

The buffer will be used for direct writes from sensors.

The buffer will be used as a shader storage or uniform buffer object.

The buffer will be used as a cube map texture.

The buffer contains a complete mipmap hierarchy.