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| author | Chia-chi Yeh <chiachi@android.com> | 2010-12-10 18:11:00 +0800 |
|---|---|---|
| committer | Chia-chi Yeh <chiachi@android.com> | 2010-12-10 20:52:30 +0800 |
| commit | 4736a38e2514bfe50b0241d2053befea82822944 (patch) | |
| tree | de1f050754123013663bae7c0794afbe27b512b8 /Android.mk | |
| parent | c2cf571b568278c7a347e656bfd2522378b7112d (diff) | |
| download | jpeg-4736a38e2514bfe50b0241d2053befea82822944.tar.gz | |
libjpeg: Use the new fast-and-accurate IDCT method for ARMv6+ devices.
As another AA&N implementation, it runs 9-10% faster than jidctfst.S
and 11-15% faster than jidctfst.c. As another IDCT method, it runs
17-20% faster than JDCT_ISLOW method and provides the same accuracy
or even better.
Change-Id: I81783c310d6dac5aaf84c03a4cf20662f466564c
Diffstat (limited to 'Android.mk')
| -rw-r--r-- | Android.mk | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -11,7 +11,7 @@ LOCAL_SRC_FILES := \ jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \ jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \ jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c + jquant2.c jutils.c jmemmgr.c armv6_idct.S # use ashmem as libjpeg decoder's backing store LOCAL_CFLAGS += -DUSE_ANDROID_ASHMEM @@ -30,6 +30,9 @@ LOCAL_CFLAGS += -O3 -fstrict-aliasing -fprefetch-loop-arrays # enable tile based decode LOCAL_CFLAGS += -DANDROID_TILE_BASED_DECODE +# enable armv6 idct assembly +LOCAL_CFLAGS += -DANDROID_ARMV6_IDCT + LOCAL_MODULE:= libjpeg LOCAL_SHARED_LIBRARIES := \ |