rockbox/lib/rbcodec/codecs/libspc, branch quake5 My Rockbox tree iPod Classic: disable IRAM1 2018-07-30T22:50:27+00:00 Cástor Muñoz cmvidal@gmail.com 2017-01-13T19:51:07+00:00 744274220833e017f3cc3f1b61abd0fc7c3885ec On Classic, IRAM1 (second 128Kb of a total of 256KB available IRAM) is slower than DRAM. Codecs that actually are using regions of IRAM1 runs faster when DRAM is used, so IRAM1 is disabled and only IRAM0 remains enabled: 48KB for core and 80KB for codecs/plugins. The next test_codec results shows how decode time is decreased: file boosted unboosted *.ra ~1.5% ~0.5% *.mpc ~21% ~4.5% *.ogg ~0.5% ~0% nero_he*.m4a ~8% ~1% nero*.m4a ~25% ~7% wmapro*.wma ~4.5% ~0% wma*.wma ~25% ~7% In addition there is a small power save when IRAM1 HW is disabled. Change-Id: I102adee11458e82037f23076d5d5956e23235de8 
On Classic, IRAM1 (second 128Kb of a total of 256KB available IRAM) is
slower than DRAM. Codecs that actually are using regions of IRAM1 runs
faster when DRAM is used, so IRAM1 is disabled and only IRAM0 remains
enabled: 48KB for core and 80KB for codecs/plugins.

The next test_codec results shows how decode time is decreased:

file           boosted     unboosted
*.ra           ~1.5%       ~0.5%
*.mpc          ~21%        ~4.5%
*.ogg          ~0.5%       ~0%
nero_he*.m4a   ~8%         ~1%
nero*.m4a      ~25%        ~7%
wmapro*.wma    ~4.5%       ~0%
wma*.wma       ~25%        ~7%

In addition there is a small power save when IRAM1 HW is disabled.

Change-Id: I102adee11458e82037f23076d5d5956e23235de8
SPC Codec ARMv5: I didn't have fast gauss quite right. 2013-05-26T04:33:30+00:00 Michael Sevakis jethead71@rockbox.org 2013-05-26T04:33:30+00:00 30fe6eb66c59f8c2b0b16ef305a9ab3742595115 Fix wrapping hazard which did eventually manifest on the right file. Change-Id: I996a6efd3181b56fd172b5c3a526c7434f88bbbe 
Fix wrapping hazard which did eventually manifest on the right file.

Change-Id: I996a6efd3181b56fd172b5c3a526c7434f88bbbe
SPC Codec: Add ARMv5 optimized code. Easy peasy. 2013-05-23T07:15:12+00:00 Michael Sevakis jethead71@rockbox.org 2013-05-22T22:50:28+00:00 33f3af2b8dbda1e67f07c9c63a07fb3e9af6fa59 Why? Why not? Cuts a few MHz. Change-Id: Ied5c70b1aedd255cbe5d42b7d3028bbe47aad01d 
Why? Why not? Cuts a few MHz.

Change-Id: Ied5c70b1aedd255cbe5d42b7d3028bbe47aad01d
SPC Codec: Simplify configuration and assume nothing need be disabled. 2013-05-22T00:39:22+00:00 Michael Sevakis jethead71@rockbox.org 2013-05-22T00:39:22+00:00 9b43f14165cdb4fd77a5e9c8a1213486dcb8ca67 Most SoCs are these days are fast enough for realtime BRR, gaussian interpolation and echo processing. Change-Id: I180ce8ad45242c67b5e573a406b9522098a3f12b 
Most SoCs are these days are fast enough for realtime BRR, gaussian
interpolation and echo processing.

Change-Id: I180ce8ad45242c67b5e573a406b9522098a3f12b
SPC Codec: Need to restore a bit more data from cached waves. 2013-05-21T20:59:58+00:00 Michael Sevakis jethead71@rockbox.org 2013-05-21T20:51:23+00:00 1f76edabf9dca3b1cb25de77f6572a12370e35c4 'Nuff said. Last update wasn't quite right. Change-Id: I082a79c4e0c82b968fe2375cb82ee5c3a64a208b 
'Nuff said. Last update wasn't quite right.

Change-Id: I082a79c4e0c82b968fe2375cb82ee5c3a64a208b
Fix FS#9577 - SNES player missing tracks on certain SPCs 2013-05-21T08:29:04+00:00 Michael Sevakis jethead71@rockbox.org 2013-05-21T08:09:44+00:00 71b9685dcd7868f233ce762a07731f6f1fd62adb Affected BRR cached waveforms but not realtime BRR decode as far as I could ascertain. BRR cached waves required loop points to be inside the initial waveform but this change removes that restriction. Change-Id: I0ef4db720e5c28bd7b2fb9ae255d27c0a7213f79 
Affected BRR cached waveforms but not realtime BRR decode as far as
I could ascertain. BRR cached waves required loop points to be inside
the initial waveform but this change removes that restriction.

Change-Id: I0ef4db720e5c28bd7b2fb9ae255d27c0a7213f79
Fix 87021f7 errors. There is no this->echo_pos when SPC_NOECHO != 0. 2013-05-21T04:20:06+00:00 Michael Sevakis jethead71@rockbox.org 2013-05-21T04:20:06+00:00 00e55d0451930b6c271786d476c4d8b167e80477 Anyway, that's true now. Change-Id: I247ea9a10543a8b65f3e73495f0e2ea725ec533e 
Anyway, that's true now.

Change-Id: I247ea9a10543a8b65f3e73495f0e2ea725ec533e
SPC Codec: Refactor for CPU and clean up some things. 2013-05-21T04:02:14+00:00 Michael Sevakis jethead71@rockbox.org 2013-05-18T05:45:03+00:00 87021f7c0ac4620eafd185ff11905ee643f72b6c CPU optimization gets its own files in which to fill-in optimizable routines. Some pointless #if 0's for profiling need removal. Those macros are empty if not profiling. Force some functions that are undesirable to be force-inlined by the compiler to be not inlined. Change-Id: Ia7b7e45380d7efb20c9b1a4d52e05db3ef6bbaab 
CPU optimization gets its own files in which to fill-in optimizable
routines.

Some pointless #if 0's for profiling need removal. Those macros are
empty if not profiling.

Force some functions that are undesirable to be force-inlined by the
compiler to be not inlined.

Change-Id: Ia7b7e45380d7efb20c9b1a4d52e05db3ef6bbaab
Add codecs to librbcodec. 2012-04-25T20:13:20+00:00 Sean Bartell wingedtachikoma@gmail.com 2011-06-26T01:32:25+00:00 f40bfc9267b13b54e6379dfe7539447662879d24 Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius <nils@rockbox.org> Tested-by: Nils Wallménius <nils@rockbox.org> 
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>