Andree Buschmann
6999e5debe
Use r12 to save 1 register.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25597 a1c6a512-1295-4272-9138-f99709370657
2010-04-11 19:08:44 +00:00
Andree Buschmann
efb702dc9b
Add arm assembler for dsp_apply_gain(). Speeds up this routine by 30-40% on PP502x.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25596 a1c6a512-1295-4272-9138-f99709370657
2010-04-11 19:02:43 +00:00
Jens Arnold
02c031709c
* ARM asm DSP and codec/plugin functions: Use r12 scratch register properly
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* Fix saving another unused reg in dsp code
* Use less regs in the generic ARM mpegplayer adding idct pure DC case
* Fix ARMv6 mpegplayer adding idct using an unsaved register in pure DC case
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21803 a1c6a512-1295-4272-9138-f99709370657
2009-07-12 13:14:35 +00:00
Steve Bavin
fb2380790e
FS#8894 - Add time stretching feature to all SWCODEC targets - the current algorithm is best for spoken word.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21258 a1c6a512-1295-4272-9138-f99709370657
2009-06-12 07:20:50 +00:00
Daniel Stenberg
2acc0ac542
Updated our source code header to explicitly mention that we are GPL v2 or
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later. We still need to hunt down snippets used that are not. 1324 modified
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http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
2008-06-28 18:10:04 +00:00
Andree Buschmann
fd052ec753
Commit FS#8750. Add ARM assembler for the dsp-functions channels_process_sound_chan_mono(), channels_process_sound_chan_karaoke(), sample_output_mono() and sample_output_stereo(). By measurement the speed up is ~75% for the first three functions and ~40% for sample_output_stereo(). Additionally avoid calling yield() to often in dsp.c -- it is now limited to once per tick.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16717 a1c6a512-1295-4272-9138-f99709370657
2008-03-19 13:55:53 +00:00
Thom Johansen
1b05ea8ffe
ARM assembler for resampling. Should provide some gains, though not huge ones.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12732 a1c6a512-1295-4272-9138-f99709370657
2007-03-11 23:33:58 +00:00
Thom Johansen
9636c1b61e
Adapt ARM crossfeed assembler to work like the Coldfire one. Remove SWITCHPARAM cruft as it's no longer needed.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12507 a1c6a512-1295-4272-9138-f99709370657
2007-02-27 17:33:23 +00:00
Thom Johansen
56f2ca74ad
Assembler optimised crossfeed routine for ARM. Performance improvement is more than double. Should work fine, but watch your ears nevertheless.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10608 a1c6a512-1295-4272-9138-f99709370657
2006-08-16 12:38:49 +00:00
