4 Commits

Author	SHA1	Message	Date
skal	3d49871dbe	NEON functions for lossless coding ... Verified OK, but right now they don't seem faster. So they are disabled behind a USE_INTRINSICS flag (off for now) Change-Id: I72a1c4fa3798f98c1e034f7ca781914c36d3392c	2014-04-10 15:32:08 +02:00
skal	abe6f48709	fix the gcc-4.6.0 bug by implementing alternative method ... previous functions are a bit faster with gcc-4.8, so we keep them for now. Change-Id: I4081e5af66fbf606295d8a83875c1b889729b4dc	2014-04-09 07:53:55 +02:00
James Zern	de693f2502	lossless_neon: disable VP8LConvert* functions ... due to breakage with NDK/gcc-4.6 builds Change-Id: Id96258e710ee33e08a023354b3227f27da986620	2014-04-04 20:38:29 -07:00
skal	97e5fac389	add some colorspace conversion functions in NEON ... new file: lossless_neon.c speedup is ~5% gcc 4.6.3 seems to be doing some sub-optimal things here, storing register on stack using 'vstmia' and such. Looks similar to gcc.gnu.org/bugzilla/show_bug.cgi?id=51509 I've tried adding -fno-split-wide-types and it does help the generated assembly. But the overall speed gets worse with this flag. We should only compile lossless_neon.c with it -> urk. Change-Id: I2ccc0929f5ef9dfb0105960e65c0b79b5f18d3b0	2014-03-31 17:47:46 +02:00