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gvr_frame_get_hardware_buffer

gvr_sys

Function gvr_frame_get_hardware_buffer 

Source 
pub unsafe extern "C" fn gvr_frame_get_hardware_buffer(
    frame: *const gvr_frame,
    index: i32,
) -> *mut AHardwareBuffer
Expand description

Gets the hardware buffer backing the specified frame buffer.

Hardware buffers (Android NDK type AHardwareBuffer) are used to back frames if asynchronous reprojection is enabled and GVR_FEATURE_HARDWARE_BUFFERS is supported (currently on Android O and later Android versions). See the documentation for the feature enum value for further information.

There is no need to acquire or release the AHardwareBuffer. The swap chain maintains a reference to it while the frame is acquired.

@param frame The gvr_frame from which to obtain the buffer. @param index Index of the pixel buffer. @return Pointer to AHardwareBuffer backing the frame’s pixel buffer where available, or NULL otherwise.