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2010-05-12Simplify special case function, speedup of about 0.2MHz on both coldfire and ↵Nils Wallménius
pp decoding the files in the test set git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25977 a1c6a512-1295-4272-9138-f99709370657
2010-03-16Change various CPU_ARM defines to _ARM_ASSEM_ to be more consistent with the ↵Michael Giacomelli
rest of Tremor. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25214 a1c6a512-1295-4272-9138-f99709370657
2010-03-05Fix broken whitespace after r24862Nils Wallménius
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25031 a1c6a512-1295-4272-9138-f99709370657
2010-02-22Remove all tabs within codec path.Andree Buschmann
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24862 a1c6a512-1295-4272-9138-f99709370657
2009-12-23Assembler optimised bitreverse for ARM, again a little bit faster and ↵Jens Arnold
smaller. * Separated 'x' and 'ret' gives gcc a bit more freedom regarding register allocation (except on coldfire where it doesn't matter). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24107 a1c6a512-1295-4272-9138-f99709370657
2009-12-23Improved bitrev with approach suggested by Jens Arnold, gives 0.5%-1% ↵Nils Wallménius
speedup for tremor decoding on sansa c200 (PP) and a tiny speedup on coldfire as well git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24102 a1c6a512-1295-4272-9138-f99709370657
2009-12-21Use optimised byteswap function in bitrev for a tiny speedup on coldfire and ↵Nils Wallménius
pp and about 1-2% speedup on gigabeat s (due to the armv6 rev instruction) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24095 a1c6a512-1295-4272-9138-f99709370657
2009-02-17Commit FS#9915 by Sei Aoyumi. Adds hints to help GCC better optimize vorbis ↵Michael Giacomelli
decoding. Gives a minor speed increase. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20030 a1c6a512-1295-4272-9138-f99709370657
2008-11-22Macros should be ALL CAPS, so rename (un)likely() to (UN)LIKELY()Nils Wallménius
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19181 a1c6a512-1295-4272-9138-f99709370657
2008-11-20Introduce likely() and unlikely() macros, use to give gcc hints about which ↵Nils Wallménius
branch is likely to be taken in a conditional, use them in the midi player for a small speedup, use instead of similar EXPECT macros in tremor and use in mpegplayer git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19162 a1c6a512-1295-4272-9138-f99709370657
2008-11-05Codec lib directories renamed, except for demac.Björn Stenberg
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19018 a1c6a512-1295-4272-9138-f99709370657
2007-09-27FS #7833: Optimizations to the Vorbis codec:Tomasz Malesinski
- ARM assembly version of parts of mdct, - special case for vorbis_book_decodevv_add for 2 channels and even book->dim, - store the output in vb->pcm if possible, as it is usually in IRAM as opposed to v->pcm. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14875 a1c6a512-1295-4272-9138-f99709370657
2007-07-01Vorbis: Apply various bugfixes from upstream Tremor.Magnus Holmgren
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13756 a1c6a512-1295-4272-9138-f99709370657
2007-03-24FS #6848 - optimizations of Huffman decoding in Tremor.Tomasz Malesinski
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12903 a1c6a512-1295-4272-9138-f99709370657
2006-09-05Recude iram usage for the Vorbis decoder a little. Makes it possible to ↵Magnus Holmgren
build with gcc 4.0.3. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10891 a1c6a512-1295-4272-9138-f99709370657
2005-07-28Tweaked IRAM usage in the Vorbis codec. Speeds up decoding by about 10% on a ↵Magnus Holmgren
couple of test files. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7249 a1c6a512-1295-4272-9138-f99709370657
2005-06-06Vorbis optimizations: allocation of PCM buffers in IRAM, avoiding copying.Pedro Vasconcelos
Slight code improvements to the MDCT functions. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6590 a1c6a512-1295-4272-9138-f99709370657
2005-05-27Basic optimizations of the Vorbis decoder for the ihp-1x0.Pedro Vasconcelos
Capable of real-time decoding with cpu freq at 120mhz. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6527 a1c6a512-1295-4272-9138-f99709370657
2005-02-28Get malloc() and friends out of the way for the cygwin linker (and maybe ↵Jens Arnold
others), to make plugins work properly in the simulator. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6086 a1c6a512-1295-4272-9138-f99709370657
2005-02-17Initial commit of the the Ogg Vorbis 'Tremor' integer playback codecMarcoen Hirschberg
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5996 a1c6a512-1295-4272-9138-f99709370657
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