Centralize the selection of codec compilation flags to codec.make
to avoid having to duplicate the per cpu selection logic and the
build rule in the individual codec lib make files and make tweaking
easier.
The two special cases, libmad and libspeex were left alone.
I plan to introduce a var for arm generation so that appropriate flags
can be selected per generation as benchmarking results have shown that
different arm arches might have different optimal flags.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30330 a1c6a512-1295-4272-9138-f99709370657
Some of these were found with http://www.samba.org/junkcode/#findstatic. Changes of note:
* The old MDCT has been removed.
* Makefile.test files that create test programs for libatrac, libcook, and libffmpegFLAC have been removed, as they don't work. My project will have a replacement that works with all codecs.
* I've tried not to remove anything useful. CLIP_TO_15 was removed from libtremor because there's another copy (also commented) in codeclib.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29945 a1c6a512-1295-4272-9138-f99709370657
Retune codec compiler optimizations with new compiler. Overall speedup with aac and flac getting big speedups.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29042 a1c6a512-1295-4272-9138-f99709370657
Removes the need to fix up those in the simulator.
Also work around some posix-mingw incompatibilities (e.g. getcwd()).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27904 a1c6a512-1295-4272-9138-f99709370657
We can't pop into pc on ARMv4t when using thumb: the T bit won't be
modified if we are returning to a thumb function
Code running on ARMv4t should use the new ldrpc / ldmpc macros instead
of ldr pc, [sp], #4 and ldm(cond) sp!, {regs, pc}
No modification on pure ARM builds and ARMv5+
Note: USE_THUMB is currently never defined, no targets can currently be
built with -mthumb, see FS#6734
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26756 a1c6a512-1295-4272-9138-f99709370657
decoding speed iPod video ~153%
But in some players, the decoding speed is not enough.
(e.g., H180 52.4% (thanks amiconn), H300 55.09% (thanks n1s))
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25994 a1c6a512-1295-4272-9138-f99709370657
