34 lines
1.1 KiB
Text
34 lines
1.1 KiB
Text
Any Android specific modifications to upstream libjpeg-turbo (1.4.2) should
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be listed here:
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(1) jconfig.h and jconfigint.h
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These are included upstream as jconfig.h.in and jconfigint.h.in.
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We have the option autogenerate these platform/version specific files (using
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the libjpeg-turbo build system) or to manually create them.
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Autogenerating these files on linux gets us most of the way, but we've needed
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to add some multi-platform flexibility to the INLINE and SIZEOF_SIZE_T macros.
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(2) Partial decoding optimizations
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These have been cherry picked from upstream and will be included in the 1.5
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release.
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(3) Security fix
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Cherry picked from upstream to address b/27494207.
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(4) simd/jsimdext.inc
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The modification enables us to compile x86 SIMD.
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The original code was:
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%define EXTN(name) _ %+ name
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The new code is:
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%define EXTN(name) name
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It is unclear why the unmodified code from upstream appends an underscore
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to name. Before removing the underscore, the code failed to link because
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the function names in the SIMD code did not match the callers (because of
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the extra underscore).
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