[OpenJDK 2D-Dev] RFR: 8047931: Remove unused medialib code

Vadim Pakhnushev vadim.pakhnushev at oracle.com
Wed May 4 10:08:54 UTC 2016


On 25.04.2016 20:13, Vadim Pakhnushev wrote:
> Hi all,
> Please review this cleanup fix:
> https://bugs.openjdk.java.net/browse/JDK-8047931
> While investigating unused files in the sparc build, it was found that 
> there are a lot of unused code in the medialib.
> So without further ado, here's the whopping 35000 lines removal webrev:
> http://cr.openjdk.java.net/~vadim/8047931/webrev.00/
> At least on Windows, it reduced the size of the mlib_image.dll by 
> almost 180KB from 663KB to 486KB and shortened the build by 3 minutes 
> on my i5.
> It was tested with the JPRT build on all platforms.
> Some notes in order of the files in the webrev:
> Awt2dLibraries.gmk
> Deleted removed files from the sparc exclude list.
> mlib_ImageAffine.c
> Main entry point mlib_ImageAffine always pass NULL as a colormap to 
> the mlib_ImageAffine_alltypes.
> This is basically a starting point for the majority of removal which 
> leads to removal of colormap parameters of several other functions and 
> elimination of several if (colormap != NULL) blocks.
> Which in turn leads to removal of function pointer arrays such as 
> mlib_AffineFunArr_bl_i and mlib_AffineFunArr_bc_i.
> mlib_ImageAffine.h
> Removed colormap parameters and related declarations.
> mlib_ImageAffineEdge.c
> Removed parts of the code in the mlib_ImageAffineEdge* functions 
> related to the colormaps.
> mlib_ImageConv*
> mlib_v_ImageConv*
> Removed 2x2 through 7x7 convolution functions as we only use NxM ones.
> mlib_image_proto.h
> Basically removed all functions with a colormap parameter.
> mlib_v_ImageAffine*
> Removed sparc implementations of unused mlib_ImageAffine* functions.
> Thanks,
> Vadim

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