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How to access(zero copy) android AHardWareBuffer and ANativeWindow_Buffer, with mali opencl?
please note, ANativeWindow_Buffer is not ANativeWindowBuffer.
AHardWareBuffer
https://developer.android.google.cn/ndk/reference/group/a-hardware-buffer
ANativeWindow_Buffer:
https://developer.android.google.cn/ndk/reference/group/a-native-window#group___a_native_window_1gad0983ca473ce36293baf5e51a14c3357
and, another question is, Can ION buffer imported with cl_arm_import_memory_dma_buf?
Yes, you can share the ION buffer to obtain a dma_buf file descriptor that can be imported with cl_arm_import_memory_dma_buf. You can look into ion_share or ION_IOC_SHARE.