The addition of mipmap could be easily added but it comes with an important degradation of performance in the renderscript implementation (remark : not in the Java one).
The simple solution is to call the renderscript kernel for each mipmap level but each call have a cost that become prohibitive and even bring lower performance than the Java implementation for smaller level.
nicastel
commented
10 years ago
The addition of mipmap could be easily added but it comes with an important degradation of performance in the renderscript implementation (remark : not in the Java one).
The simple solution is to call the renderscript kernel for each mipmap level but each call have a cost that become prohibitive and even bring lower performance than the Java implementation for smaller level.