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15 commits

Author SHA1 Message Date
Andrew Mahone
8ed7bda64c Move udiv32_arm.S into libdemac, as this divider is specialized for the APE codec and an optimized divider is already provided for general use in codeclib. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24506 a1c6a512-1295-4272-9138-f99709370657
 2010-02-04 05:49:37 +00:00
Andrew Mahone
bff5a35c3c FS#10943, optimized division and clz routines to replace libgcc routines for ARM. Replaces libgcc support functions for unsigned and signed 32-bit division on ARMv4 and up, and leading-zero count on ARMv4. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24432 a1c6a512-1295-4272-9138-f99709370657
 2010-02-01 01:36:46 +00:00
Andrew Mahone
e76f30a57c Improvements to specialized dividers for APE codec: 
* Use Newton-Raphson divider on ARMv5e and ARMv6, about 7% speedup on Gigabeat S.
* On ARMv4 targets using IRAM, remove insane filter buffer from IRAM, fill available IRAM with LUT of reciprocals for small divisors - speedup varies according to target and available IRAM, APE normal sample is approx. 109% RT on e200.
* Rename apps/codecs/lib/udiv32_armv4.S to apps/codecs/lib/udiv32_arm.S, which includes dividers for all ARM targets specialized for APE.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24354 a1c6a512-1295-4272-9138-f99709370657
 2010-01-28 02:28:52 +00:00
Michael Giacomelli
b957f7214b Rearrange the MDCT library lookup tables so that codecs can access them. Access them in cook. Remove old cook trig tables. Replace old 32x16 bit fixed point multiply code with faster ASM ARM/Coldfire versions using full 32 bit precision. Improves performance signficantly on PP5024 (~200% realtime for a 64k file) while saving a lot of memory and improving accuracy. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21939 a1c6a512-1295-4272-9138-f99709370657
 2009-07-17 23:53:40 +00:00
Maurus Cuelenaere
802743a061 Take 2 at 'Consolidate all fixed point math routines in one library' (FS#10400) by Jeffrey Goode 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21664 a1c6a512-1295-4272-9138-f99709370657
 2009-07-05 18:06:07 +00:00
Maurus Cuelenaere
c3bc8fda80 Revert "Consolidate all fixed point math routines in one library (FS#10400) by Jeffrey Goode" 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21635 a1c6a512-1295-4272-9138-f99709370657
 2009-07-04 13:17:58 +00:00
Maurus Cuelenaere
4710a32800 Consolidate all fixed point math routines in one library (FS#10400) by Jeffrey Goode 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21633 a1c6a512-1295-4272-9138-f99709370657
 2009-07-04 12:26:45 +00:00
Maurus Cuelenaere
66b078f643 Add setjmp implementation for MIPS targets from newlib 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20713 a1c6a512-1295-4272-9138-f99709370657
 2009-04-16 13:41:48 +00:00
Magnus Holmgren
f4515c3082 Add setjmp/longjmp for ARM and ColdFire to the codec lib, and use it in the Vorbis codec to better handle out of memory conditions (to exit rather than crash; the AAC codec could use it too). setjmp/longjmp comes from newlib 1.17.0 with a few minor changes (combine parts of some files, remove support for some architectures, change some ifdef's). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20235 a1c6a512-1295-4272-9138-f99709370657
 2009-03-08 12:48:58 +00:00
Jens Arnold
fe04e40be7 Further optimised (vs. libgcc) unsigned 32 bit division for ARMv4 (based on the ARMv5(+) version from libgcc), in IRAM on PP for better performance on PP5002, and put into the codeclib for possible reuse. APE -c1000 is now usable on both PP502x and PP5002 (~138% realtime, they're on par now). Gigabeat F/X should also see an APE speedup. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19009 a1c6a512-1295-4272-9138-f99709370657
 2008-11-05 00:10:05 +00:00
Michael Giacomelli
46f85c4c54 Combine the Vorbis, WMA and AAC IMDCT functions and put them into the codeclib. Combined IMDCT is now based on existing Tremor transform. Reduces CPU for 192k AAC by 21MHz on Coldfire, and 5MHz on PP5024. WMA and Vorbis should have no functional changes since they already used this code. Further optimization is possible and would benefit all 3 codecs. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18412 a1c6a512-1295-4272-9138-f99709370657
 2008-09-04 18:02:10 +00:00
Barry Wardell
6684df4113 FS#6315 - Get the UI simulator to compile for non SWCODEC targets on OS X. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11515 a1c6a512-1295-4272-9138-f99709370657
 2006-11-11 23:30:41 +00:00
Thom Johansen
c91e0bbfc9 Cleaned up the messy codec header and library system by merging codec.h, lib/codeclib.[ch] and lib/xxx2wav.[ch] into just codeclib.[ch]. Deleted much of the unused code in the xxx2wav portion. All codecs should now only include codeclib.h, and whatever codec specific headers are needed. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7626 a1c6a512-1295-4272-9138-f99709370657
 2005-10-13 11:32:52 +00:00
Jens Arnold
d6c054575b Renamed CONFIG_HWCODEC and MASNONE to the more appropriate CONFIG_CODEC and SWCODEC, respectively. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7416 a1c6a512-1295-4272-9138-f99709370657
 2005-08-29 21:15:27 +00:00
Daniel Stenberg
3739d3aa34 codec lib sources 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6819 a1c6a512-1295-4272-9138-f99709370657
 2005-06-22 20:13:46 +00:00