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SSE2 functions for the fancy upsampler.

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~5-10% faster.
Heavy 8bit arithmetic trickery!
Patch by Somnath Banerjee (somnath at google dot com)

Change-Id: I9fd2c511d9f631e9cf4b008c46127b49fb527b47
This commit is contained in:
Pascal Massimino
2011-07-07 16:50:04 -07:00
parent a06bbe2e80
commit e291fae0fc
7 changed files with 332 additions and 94 deletions
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makefile.unix
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@ -58,7 +58,7 @@ OBJS = src/enc/webpenc.o src/enc/bit_writer.o src/enc/syntax.o \
src/dec/bits.o src/dec/dsp.o src/dec/dsp_sse2.o src/dec/frame.o \
src/dec/webp.o src/dec/quant.o src/dec/tree.o src/dec/vp8.o \
src/dec/yuv.o src/dec/idec.o src/dec/alpha.o src/dec/layer.o \
src/dec/io.o src/dec/buffer.o
src/dec/io.o src/dec/io_sse2.o src/dec/buffer.o
HDRS = src/webp/encode.h src/enc/vp8enci.h src/enc/bit_writer.h \
src/enc/cost.h src/dec/bits.h src/dec/vp8i.h src/dec/yuv.h
OUTPUT = examples/cwebp examples/dwebp src/libwebp.a