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* Build librbcodec with DSP and metadata.Sean Bartell2012-03-18
| | | | | | All associated files are moved to /lib/rbcodec. Change-Id: I572ddd2b8a996aae1e98c081d06b1ed356dce222
* FS#11335 by me: make ARM assembly functions thumb-friendlyRafaël Carré2010-06-11
| | | | | | | | | | | | | 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
* ARM DSP: Add assembly custom sound channel processing. 13% to 14% faster ↵Michael Sevakis2010-05-11
| | | | | | than currently-used default C code on ARMv4. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25949 a1c6a512-1295-4272-9138-f99709370657
* ARM DSP: Get an instruction out of the crossfeed main loop and improve loads ↵Michael Sevakis2010-05-11
| | | | | | and interlocks for stacked vars. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25946 a1c6a512-1295-4272-9138-f99709370657
* ARM DSP: Remove a couple comments that no longer apply.Michael Sevakis2010-05-11
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25945 a1c6a512-1295-4272-9138-f99709370657
* ARM DSP: fore some reason I neglected dsp_downsample completely. Do a small ↵Michael Sevakis2010-05-11
| | | | | | reordering. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25944 a1c6a512-1295-4272-9138-f99709370657
* ARM DSP: Make things a little more pipeline friendly. Reduce nonvolatile ↵Michael Sevakis2010-05-11
| | | | | | register stacking where possible. Routines now handle odd sample counts properly and will not over-write in that case. Remove a few pointless labels. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25943 a1c6a512-1295-4272-9138-f99709370657
* Optimized DSP sample out functions for armv6. (For stereo output) ~9% faster ↵Michael Sevakis2010-04-25
| | | | | | than SVN asm and about 4% faster than SVN asm rearranged to observe pipeline hazards. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25717 a1c6a512-1295-4272-9138-f99709370657
* Use r12 to save 1 register.Andree Buschmann2010-04-11
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25597 a1c6a512-1295-4272-9138-f99709370657
* Add arm assembler for dsp_apply_gain(). Speeds up this routine by 30-40% on ↵Andree Buschmann2010-04-11
| | | | | | PP502x. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25596 a1c6a512-1295-4272-9138-f99709370657
* * ARM asm DSP and codec/plugin functions: Use r12 scratch register properlyJens Arnold2009-07-12
| | | | | | | | | * 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
* FS#8894 - Add time stretching feature to all SWCODEC targets - the current ↵Steve Bavin2009-06-12
| | | | | | algorithm is best for spoken word. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21258 a1c6a512-1295-4272-9138-f99709370657
* Updated our source code header to explicitly mention that we are GPL v2 orDaniel Stenberg2008-06-28
| | | | | | | | | later. We still need to hunt down snippets used that are not. 1324 modified files... 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
* Commit FS#8750. Add ARM assembler for the dsp-functions ↵Andree Buschmann2008-03-19
| | | | | | 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. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16717 a1c6a512-1295-4272-9138-f99709370657
* ARM assembler for resampling. Should provide some gains, though not huge ones.Thom Johansen2007-03-11
| | | | git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12732 a1c6a512-1295-4272-9138-f99709370657
* Adapt ARM crossfeed assembler to work like the Coldfire one. Remove ↵Thom Johansen2007-02-27
| | | | | | SWITCHPARAM cruft as it's no longer needed. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12507 a1c6a512-1295-4272-9138-f99709370657
* Assembler optimised crossfeed routine for ARM. Performance improvement is ↵Thom Johansen2006-08-16
more than double. Should work fine, but watch your ears nevertheless. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10608 a1c6a512-1295-4272-9138-f99709370657
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