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86 commits

Author SHA1 Message Date
Rafaël Carré
5a329ded5c workaround weird gcc behaviour 
it might a bug in the 4 years old gcc version, but __ASSEMBLER__ is not
defined when preprocessing .S files with -std=gnu99

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28026 a1c6a512-1295-4272-9138-f99709370657
 2010-09-07 14:58:10 +00:00
Jens Arnold
811877e5b3 libdemac: ARMv7 assembler optimisation for the filters, tested on Nokia N900. Speedup is 2.1x for -c5000 compared to the ARMv6 asm. Note that actually compiling it on device requires hand-assembling the 'vadd' and 'vsub' instructions due to a bug in binutils 2.18.50, and making the standalone decoder use it requires Makefile and demac_config.h hacks. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27944 a1c6a512-1295-4272-9138-f99709370657
 2010-08-30 06:31:47 +00:00
Jens Arnold
2e73e53679 Make libdemac compile again on OSX x86 and x86_64 by replacing .rept with fancy preprocessor stuff. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27490 a1c6a512-1295-4272-9138-f99709370657
 2010-07-19 10:04:54 +00:00
Rafaël Carré
45c7498f59 FS#11335 by me: make ARM assembly functions thumb-friendly 
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
 2010-06-11 04:41:36 +00:00
Andree Buschmann
6805448195 Correction to clobber lists of several codec's inline assembly. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26376 a1c6a512-1295-4272-9138-f99709370657
 2010-05-29 15:00:10 +00:00
Thomas Martitz
50a6ca39ad Move c/h files implementing/defining standard library stuff into a new libc directory, also standard'ify some parts of the code base (almost entirely #include fixes). 
This is to a) to cleanup firmware/common and firmware/include a bit, but also b) for Rockbox as an application which should use the host system's c library and headers, separating makes it easy to exclude our files from the build.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25850 a1c6a512-1295-4272-9138-f99709370657
 2010-05-06 21:04:40 +00:00
Jens Arnold
029e74866a Move (small) data into DRAM on PP5020, it's ~4.5% faster that way. Closes about half of the performance gap towards PP5022. The (relatively large) buffers for decoded data stay in IRAM, as does the reciprocal table. Clarify some comments. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25108 a1c6a512-1295-4272-9138-f99709370657
 2010-03-10 21:39:12 +00:00
Jens Arnold
5c80a838e4 libdemac: Separate filtering calls per channel in preparation for the dual-core split on PP. This also means less inlining, and hence speeds up decoding on single core slightly, due to better caching behaviour. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25005 a1c6a512-1295-4272-9138-f99709370657
 2010-03-03 21:20:13 +00:00
Jens Arnold
0030ae28b5 Get rid of .rept in inline asm() blocks where possible. Using .rept causes gcc to wrongly estimate the size of the asm(), leading to (potential) compilation problems. This is necessary for the upcoming restructuring, and should fix ARMv6+ sim builds as well. No functional change. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25004 a1c6a512-1295-4272-9138-f99709370657
 2010-03-03 20:52:02 +00:00
Andree Buschmann
398b37124e Remove all tabs within codec path. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24862 a1c6a512-1295-4272-9138-f99709370657
 2010-02-22 19:44:05 +00:00
Andrew Mahone
950b2dfa2c Clarify comments in ARMv6 divider regarding special-case handling of large (high bit set) numerators. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24783 a1c6a512-1295-4272-9138-f99709370657
 2010-02-20 06:29:23 +00:00
Jens Arnold
b8eb272e48 libdemac: Add x86/x86_64 MMX asm for the filters. Not relevant for target but speeds up decoding on x86/x86_64 sims. Average speedup ranges from 25% for -c2000 to 3 times for -c5000; on Intel Atom it's even 45% for -c2000 to 6 times for -c5000. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24663 a1c6a512-1295-4272-9138-f99709370657
 2010-02-15 01:27:04 +00:00
Jens Arnold
6edf71e9b9 Remove leftover from before make system rework. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24602 a1c6a512-1295-4272-9138-f99709370657
 2010-02-11 20:33:34 +00:00
Jens Arnold
0a291fff12 APE: Fused vector math for the filters on ARMv5te. Speedup on Cowon D2 is ~4% for -c2000..-c4000 (less for -c5000). Thanks to Frank Gevaerts for testing. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24590 a1c6a512-1295-4272-9138-f99709370657
 2010-02-10 23:23:17 +00:00
Jens Arnold
1cc4bd8f86 APE: Fused vector math for the filters on ARMv6. Speedup is ~2.5% for -c2000, ~7% for -c3000 and higher. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24569 a1c6a512-1295-4272-9138-f99709370657
 2010-02-08 21:59:24 +00:00
Jens Arnold
69fe1ad830 Put back the insane buffer where it belongs on non-ARM, and simplify the selection. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24512 a1c6a512-1295-4272-9138-f99709370657
 2010-02-04 20:20:10 +00:00
Andrew Mahone
723d5c6da6 Fix yellow: add newline at EOF in udiv32_arm-pre.S 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24508 a1c6a512-1295-4272-9138-f99709370657
 2010-02-04 08:55:36 +00:00
Andrew Mahone
b1caf4a07d Use all available codec iram for reciprocal table in APE codec on ARMv4. Done by linking first with the table empty to determine free space, then sizing table to fill it. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24507 a1c6a512-1295-4272-9138-f99709370657
 2010-02-04 08:45:38 +00:00
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
Jens Arnold
9f6586698a APE codec: Speed up decoding of -c2000 and higher on ARMv4 and coldfire by fusing vector math for the filters. Speedup is roughly 3.5% for -c2000, 8% for -c3000 and 12% for -c4000. To be extended to other architectures. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24473 a1c6a512-1295-4272-9138-f99709370657
 2010-02-02 22:50:21 +00:00
Andrew Mahone
436f4d3a20 Improve libdemac SATURATE slightly on ARMv4/5, move filter buffers and code out of IRAM for sizes that aren't near realtime and extend udiv32_arm reciprocal table. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24376 a1c6a512-1295-4272-9138-f99709370657
 2010-01-30 02:20:54 +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 Sparmann
099df2fb71 Make the codecs use more IRAM on S5L870x, as we have plenty of it. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23594 a1c6a512-1295-4272-9138-f99709370657
 2009-11-09 20:01:07 +00:00
Jens Arnold
82dc91a102 Don't use ldrd/strd on ARMv5 since not all revisions support them and the gain from using them is minimal (basically code size only). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21916 a1c6a512-1295-4272-9138-f99709370657
 2009-07-17 09:17:54 +00:00
Jens Arnold
6421f94c0d Silence warning from 'ar' if the archive had to be created. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20151 a1c6a512-1295-4272-9138-f99709370657
 2009-03-01 09:04:15 +00:00
Daniel Stenberg
2e6d604bb6 Stop hiding errors by redirecting stderr to /dev/null. If we really need to do re-introduce somewhere we should rather make it dependent on the V variable so that make V=1 would still show the error and only "normal" builds would hide it. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20090 a1c6a512-1295-4272-9138-f99709370657
 2009-02-23 08:45:16 +00:00
Björn Stenberg
6427d127aa Calculate watermark from bitrate and harddisk spinup time. 
Use a smaller PCM buffer on targets with 2MB or less ram.
(FS#9703)


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19743 a1c6a512-1295-4272-9138-f99709370657
 2009-01-10 21:10:56 +00:00
Bertrik Sikken
32c2f455d1 static/const/#include/tab police on various files 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19643 a1c6a512-1295-4272-9138-f99709370657
 2009-01-02 21:43:52 +00:00
Bertrik Sikken
8e22f7f5b0 Make local functions static in codecs, where possible. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19612 a1c6a512-1295-4272-9138-f99709370657
 2008-12-29 19:49:48 +00:00
Jens Arnold
ed945e31c1 Slight speedup for the APE filters. Most noticeable on coldfire (+3.5% for -c2000), but also helps on the arm targets (+0.9% for -c2000 on PP5002). This transformation is oveflow safe, as absres < 2^24 is guaranteed. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19556 a1c6a512-1295-4272-9138-f99709370657
 2008-12-22 08:33:49 +00:00
Jens Arnold
dca9f42cdf Fix decoding of stereo frames with silence in only one channel. * Make the standalone decoder contain debugging information. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19552 a1c6a512-1295-4272-9138-f99709370657
 2008-12-21 23:49:02 +00:00
Jens Arnold
0bf6e36628 Fix handling of 8 bit mono and stereo APE files, and also optimise 16 and 24 bit output in the standalone decoder a bit. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19517 a1c6a512-1295-4272-9138-f99709370657
 2008-12-21 01:29:36 +00:00
Jens Arnold
a29b659758 Assembler optimised mono predictor for ARM. Speedup for -c1000 mono is ~5% on PP, ~8% on Gigabeat S (less for higher compression levels). Also fix some overlooked comments in the stereo predictor. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19375 a1c6a512-1295-4272-9138-f99709370657
 2008-12-09 23:20:59 +00:00
Jens Arnold
c1cd0469ca Implement mono predictor in assembler for coldfire, yielding a ~6% speedup for mono -c1000. Apply ideas gained from it back to the stereo predictor, saving 4 instructions. No speed increase for stereo, probably due to cache aliasing effects. * 80-column police. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19296 a1c6a512-1295-4272-9138-f99709370657
 2008-12-02 02:26:04 +00:00
Jens Arnold
75bd4adbc2 Shuffling around register allocation allows to keep decoded0 and decoded1 in registers, for a slight speedup. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19287 a1c6a512-1295-4272-9138-f99709370657
 2008-12-01 13:21:06 +00:00
Jens Arnold
89a6fe7ae4 Remove extraneous semicolons, and fix a comment. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19268 a1c6a512-1295-4272-9138-f99709370657
 2008-11-30 11:54:20 +00:00
Jens Arnold
797ef6585a Fix APE 16-bit mono output: mono signals need to be scaled for rockbox. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19264 a1c6a512-1295-4272-9138-f99709370657
 2008-11-30 01:01:04 +00:00
Jens Arnold
88270f7622 Resurrect the ARM7 16-bit packed vector addition/subtraction for ARMv5, giving a nice speedup for the higher compression levels (tested on Cowon D2). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19260 a1c6a512-1295-4272-9138-f99709370657
 2008-11-28 23:50:22 +00:00
Jens Arnold
113c285045 On ARM9TDMI (e.g. Gigabeat F) it's faster to use a ldr/str pair than add+ldmia/stmia for 2 registers. On ARM7TDMI a str pair is equally fast, so go for the simpler macro and use it for all ARMv4. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19250 a1c6a512-1295-4272-9138-f99709370657
 2008-11-27 22:07:46 +00:00
Jens Arnold
6d34e33b94 Speed up the predictor a little by using ldrd/strd on ARMv5+. This required shuffling around the register allocation somewhat. Performance on ARMv4 is unaffected. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19248 a1c6a512-1295-4272-9138-f99709370657
 2008-11-27 20:52:23 +00:00
Jens Arnold
5b0d74a7d3 Get rid of unused return values, except the one from decode_chunk() which will be used in the dual core split. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19236 a1c6a512-1295-4272-9138-f99709370657
 2008-11-26 18:01:18 +00:00
Björn Stenberg
a091d20ba0 Added 'keywords' and 'eol-style' properties. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19218 a1c6a512-1295-4272-9138-f99709370657
 2008-11-25 19:54:23 +00:00
Jens Arnold
d7e4e54bcb Reorder instructions to avoid pipeline stalls on ARMv6 wherever possible (sometimes using different registers to allow this). Speeds up the predictor by almost 20% on ARMv6 (overall speedup for -c1000 is 5%), and might also help a bit on ARMv5. ARMv4 speed is unaffected. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19210 a1c6a512-1295-4272-9138-f99709370657
 2008-11-24 23:09:09 +00:00
Jens Arnold
3761c0108c Branch optimisation in both C (giving hints to gcc - verified using -fprofile-arcs and gcov) and asm files. Biggest effect on coldfire (-c1000: +8%, -c2000: +5%), but ARM also profits a bit (less than 1% on ARM7TDMI, around 1% on ARM1136). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19199 a1c6a512-1295-4272-9138-f99709370657
 2008-11-24 18:40:49 +00:00
Jens Arnold
66c0cf2eb1 Tweak the ARMv6 filter assembly a bit further. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19198 a1c6a512-1295-4272-9138-f99709370657
 2008-11-24 18:40:43 +00:00
Björn Stenberg
303b455ceb Remove .a files before running ar, to avoid problems with renamed files remaining in the library. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19160 a1c6a512-1295-4272-9138-f99709370657
 2008-11-20 16:49:55 +00:00
Björn Stenberg
c6b3d38a15 New makefile solution: A single invocation of 'make' to build the entire tree. Fully controlled dependencies give faster and more correct recompiles. 
Many #include lines adjusted to conform to the new standards.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19146 a1c6a512-1295-4272-9138-f99709370657
 2008-11-20 11:27:31 +00:00
Jens Arnold
2a5053f58c Several tweaks and cleanups: * Use .rept instead of repeated macros for repeating blocks. * Use MUL (variant) instead of MLA (variant) in the first step of the ARM scalarproduct() if there's no loop. * Unroll ARM assembler functions to 32 where not already done, plus the generic scalarproduct(). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19144 a1c6a512-1295-4272-9138-f99709370657
 2008-11-19 21:31:33 +00:00
Jens Arnold
77934cbc96 Compile-time choice between 16 bit and 32 bit integers for the filters. 32 bit filters are faster on ARMv4 (with assembler code), so use them there. Nice speedup on PP and Gigabeat F/X. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19140 a1c6a512-1295-4272-9138-f99709370657
 2008-11-19 00:34:48 +00:00
Jens Arnold
1b14167861 Centralise compile-time configuration. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19121 a1c6a512-1295-4272-9138-f99709370657
 2008-11-16 17:49:37 +00:00