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add runtime NEON detection

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configure gets 2 new options:
--enable-neon / --enable-neon-rtcd

the NEON modules are split to their own convenience lib and built with
auto-detected flags if none are given via CFLAGS.

the /proc/cpuinfo check will only be used for armv7 targets whose
toolchain does not enable NEON by default or didn't have NEON forced by
the CFLAGS from the environment.

Change-Id: I2755bc1d065d5d6ee6143b44978c2082f8bef1c5
This commit is contained in:
James Zern
2016-04-18 23:31:42 -07:00
parent c80b9fc8fc
commit 74fb56fb5d
4 changed files with 100 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
src/dsp/Makefile.am
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@ -1,6 +1,7 @@
noinst_LTLIBRARIES = libwebpdsp.la libwebpdsp_avx2.la
noinst_LTLIBRARIES += libwebpdsp_sse2.la libwebpdspdecode_sse2.la
noinst_LTLIBRARIES += libwebpdsp_sse41.la libwebpdspdecode_sse41.la
noinst_LTLIBRARIES += libwebpdsp_neon.la libwebpdspdecode_neon.la
if BUILD_LIBWEBPDECODER
noinst_LTLIBRARIES += libwebpdspdecode.la
@ -18,23 +19,18 @@ COMMON_SOURCES += dec.c
COMMON_SOURCES += dec_clip_tables.c
COMMON_SOURCES += dec_mips32.c
COMMON_SOURCES += dec_mips_dsp_r2.c
COMMON_SOURCES += dec_neon.c
COMMON_SOURCES += dsp.h
COMMON_SOURCES += filters.c
COMMON_SOURCES += filters_mips_dsp_r2.c
COMMON_SOURCES += lossless.c
COMMON_SOURCES += lossless.h
COMMON_SOURCES += lossless_mips_dsp_r2.c
COMMON_SOURCES += lossless_neon.c
COMMON_SOURCES += mips_macro.h
COMMON_SOURCES += neon.h
COMMON_SOURCES += rescaler.c
COMMON_SOURCES += rescaler_mips32.c
COMMON_SOURCES += rescaler_mips_dsp_r2.c
COMMON_SOURCES += rescaler_neon.c
COMMON_SOURCES += upsampling.c
COMMON_SOURCES += upsampling_mips_dsp_r2.c
COMMON_SOURCES += upsampling_neon.c
COMMON_SOURCES += yuv.c
COMMON_SOURCES += yuv.h
COMMON_SOURCES += yuv_mips32.c
@ -49,11 +45,9 @@ ENC_SOURCES += cost_mips_dsp_r2.c
ENC_SOURCES += enc.c
ENC_SOURCES += enc_mips32.c
ENC_SOURCES += enc_mips_dsp_r2.c
ENC_SOURCES += enc_neon.c
ENC_SOURCES += lossless_enc.c
ENC_SOURCES += lossless_enc_mips32.c
ENC_SOURCES += lossless_enc_mips_dsp_r2.c
ENC_SOURCES += lossless_enc_neon.c
libwebpdsp_avx2_la_SOURCES =
libwebpdsp_avx2_la_SOURCES += enc_avx2.c
@ -77,6 +71,15 @@ libwebpdspdecode_sse2_la_SOURCES += yuv_sse2.c
libwebpdspdecode_sse2_la_CPPFLAGS = $(libwebpdsp_sse2_la_CPPFLAGS)
libwebpdspdecode_sse2_la_CFLAGS = $(libwebpdsp_sse2_la_CFLAGS)
libwebpdspdecode_neon_la_SOURCES =
libwebpdspdecode_neon_la_SOURCES += dec_neon.c
libwebpdspdecode_neon_la_SOURCES += lossless_neon.c
libwebpdspdecode_neon_la_SOURCES += neon.h
libwebpdspdecode_neon_la_SOURCES += rescaler_neon.c
libwebpdspdecode_neon_la_SOURCES += upsampling_neon.c
libwebpdspdecode_neon_la_CPPFLAGS = $(libwebpdsp_neon_la_CPPFLAGS)
libwebpdspdecode_neon_la_CFLAGS = $(libwebpdsp_neon_la_CFLAGS)
libwebpdsp_sse2_la_SOURCES =
libwebpdsp_sse2_la_SOURCES += argb_sse2.c
libwebpdsp_sse2_la_SOURCES += cost_sse2.c
@ -93,6 +96,13 @@ libwebpdsp_sse41_la_CPPFLAGS = $(libwebpdsp_la_CPPFLAGS)
libwebpdsp_sse41_la_CFLAGS = $(AM_CFLAGS) $(SSE41_FLAGS)
libwebpdsp_sse41_la_LIBADD = libwebpdspdecode_sse41.la
libwebpdsp_neon_la_SOURCES =
libwebpdsp_neon_la_SOURCES += enc_neon.c
libwebpdsp_neon_la_SOURCES += lossless_enc_neon.c
libwebpdsp_neon_la_CPPFLAGS = $(libwebpdsp_la_CPPFLAGS)
libwebpdsp_neon_la_CFLAGS = $(AM_CFLAGS) $(NEON_FLAGS)
libwebpdsp_neon_la_LIBADD = libwebpdspdecode_neon.la
libwebpdsp_la_SOURCES = $(COMMON_SOURCES) $(ENC_SOURCES)
noinst_HEADERS =
@ -106,6 +116,7 @@ libwebpdsp_la_LDFLAGS = -lm
libwebpdsp_la_LIBADD =
libwebpdsp_la_LIBADD += libwebpdsp_avx2.la libwebpdsp_sse2.la
libwebpdsp_la_LIBADD += libwebpdsp_sse41.la
libwebpdsp_la_LIBADD += libwebpdsp_neon.la
if BUILD_LIBWEBPDECODER
libwebpdspdecode_la_SOURCES = $(COMMON_SOURCES)
@ -115,4 +126,5 @@ if BUILD_LIBWEBPDECODER
libwebpdspdecode_la_LIBADD =
libwebpdspdecode_la_LIBADD += libwebpdspdecode_sse2.la
libwebpdspdecode_la_LIBADD += libwebpdspdecode_sse41.la
libwebpdspdecode_la_LIBADD += libwebpdspdecode_neon.la
endif