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25 commits

Author SHA1 Message Date
Solomon Peachy
5b23c9eb0a Introduce HW_SAMPR_MIN_GE_22 macro 
Gives us the lowest HW sample rate that's >= 22KHz.

Needed because some targets that don't support 22K support 11K or 8K, so
HW_SAMPR_MIN will give us much lower quality than is acceptable.

Take advantage of this new macro in the SDL, MIDI, and MIKMOD plugins,
and implement a crude "fast enough" test to enable higher sample rates
on more capable targets.

Change-Id: I6ad38026fb3410c62da028e78512e027729bb851
 2019-08-08 22:37:30 +02:00
Solomon Peachy
ed724fecb1 Midiplay plugin ehancements 
- Improved robustness
 - Improved sound quality
 - Use mixer and DSP

Patch by Igor Poretsky

Change-Id: I6fa617158cbaa53ae842295cdbdbe3a478e49ded
 2019-08-05 20:48:40 +02:00
Nils Wallménius
2afc175a4e midi: make the patch sample data pointer a *int16_t to get rid of some ugly casting and drop an acessor macro to make caching the pointer in the synthVoice loop possible. Speeds up midi by 1-2% on cf and 3-5% on PP. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30438 a1c6a512-1295-4272-9138-f99709370657
 2011-09-06 10:34:20 +00:00
Michael Chicoine
91a45d2ecc Rename printf to prevent naming conflict. Also change comment to conform with Rockbox standards. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27562 a1c6a512-1295-4272-9138-f99709370657
 2010-07-25 19:35:19 +00:00
Thomas Martitz
35e8b1429a Rockbox as an application: Replace many occurences of #ifdef SIMULATOR with #if (CONFIG_PLATFORM & PLATFORM_HOSTED) (or equivalently). 
The simulator defines PLATFORM_HOSTED, as RaaA will do (RaaA will not define SIMULATOR).
The new define is to (de-)select code to compile on hosted platforms generally.

Should be no functional change to targets or the simulator.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27019 a1c6a512-1295-4272-9138-f99709370657
 2010-06-21 16:53:00 +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
Andree Buschmann
dfe46436b1 Remove tabs 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24547 a1c6a512-1295-4272-9138-f99709370657
 2010-02-07 17:50:24 +00:00
Nils Wallménius
1adc869d9c midi: yield more, fixes flickering backlight fade on some targets while playing midi. Some coding style clean up, it's a little better but still a mess 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20562 a1c6a512-1295-4272-9138-f99709370657
 2009-03-28 11:27:56 +00:00
Nils Wallménius
4c43f7be0a Rearrange the main synth loop a little and move some tests around for a ~5% speedup on c200, increase the output buffer size to make skips less likely, playback of simple midi files should now be mostly skip free on pp based players 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19207 a1c6a512-1295-4272-9138-f99709370657
 2008-11-24 21:32:08 +00:00
Daniel Stenberg
2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or 
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
 2008-06-28 18:10:04 +00:00
Stepan Moskovchenko
7f1fbe4af2 MIDI: Increase percision of synthesizer by a factor of 4 - makes certain parts (guitar bends, mostly) 
sound more natural. Also, completely rearrange the order of operations in the delta computation. Had to 
use long longs. Probably not a good idea for speed, but the order can be optimized more later.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15652 a1c6a512-1295-4272-9138-f99709370657
 2007-11-17 06:39:02 +00:00
Nils Wallménius
65331f1749 Revert some changes that broke looping in midiplayer 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15631 a1c6a512-1295-4272-9138-f99709370657
 2007-11-15 21:20:29 +00:00
Nils Wallménius
0fd4c2e455 Rearrange logic in the synthVoice loop to do less tests and remove need of a struct member for a small speedup, move some memory lookups out of the loop for a small speedup, further cosmetic changes to the synthVoice function. Change isUsed to a bool for clearer logic and also a tiny speedup 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15563 a1c6a512-1295-4272-9138-f99709370657
 2007-11-11 01:02:45 +00:00
Stepan Moskovchenko
47d8323deb MIDI: Fix ringing/beeks in music caused by improper parsing of some pitch bend events. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15252 a1c6a512-1295-4272-9138-f99709370657
 2007-10-21 19:47:33 +00:00
Nils Wallménius
ab5a38db92 Clean out an unused struct member from the synthObject struct 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15189 a1c6a512-1295-4272-9138-f99709370657
 2007-10-18 13:43:13 +00:00
Stepan Moskovchenko
d33645ba13 MIDI: Optimize the new pitch bending code for a small speedup. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15160 a1c6a512-1295-4272-9138-f99709370657
 2007-10-17 03:48:24 +00:00
Stepan Moskovchenko
1515ff8522 MIDI: At long last, though quick and dirty, pitch bend depth! Or, I think it works. Tested on two 
files. Let me know if anyone discovers any problems with this. This commit also includes Nils's synth 
loop optimization patch. I hope committing it does not cause problems.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15112 a1c6a512-1295-4272-9138-f99709370657
 2007-10-15 05:11:37 +00:00
Nils Wallménius
ca46a3d095 Increase output buffer size to 32kB, results in less buffer missing in general and avoids buffer misses when lcd remote is plugged in while playing and ticking reduction is enabled. Increase max voices used on coldfire targets to 24 and reduce voices used on pp targets to 16. Put one more struct in iram for a slight speedup on coldfire. Fix comments in midiutil.h 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14984 a1c6a512-1295-4272-9138-f99709370657
 2007-10-04 21:01:40 +00:00
Nils Wallménius
e1940b87b0 Optimisation of the midi player, reducing the number of multiplications and memory accesses inside a very frequently executed loop, also does shifting of the whole sample when synthing is done which improves accurracy slightly, ~10% fewer buffer misses 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14983 a1c6a512-1295-4272-9138-f99709370657
 2007-10-04 19:36:42 +00:00
Nils Wallménius
6386dbe861 static/inline/iram raid gives nice speedup 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14915 a1c6a512-1295-4272-9138-f99709370657
 2007-09-30 11:21:25 +00:00
Stepan Moskovchenko
1ed54f4302 Maybe 25 was too much with the new decay rates. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14911 a1c6a512-1295-4272-9138-f99709370657
 2007-09-30 09:04:39 +00:00
Stepan Moskovchenko
414724e2f4 MIDI: Kick up number of voices and decrease the decay rate, taking 
advantage of the recent speedups. Some instruments sound a lot more 
natural now.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14910 a1c6a512-1295-4272-9138-f99709370657
 2007-09-30 09:01:38 +00:00
Nils Wallménius
6888db3240 Do not duplicate const table, make getEvent function static inline, gives about a ~1.5% speedup, put tick function in iram, ~3.5% speedup 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14873 a1c6a512-1295-4272-9138-f99709370657
 2007-09-27 20:17:38 +00:00
Nils Wallménius
93787dd42c Simplify the sendEvent function, makes it _slightly_ faster and quite a bit smaller, build midiplay with -O2 for coldfire, gives about a 23% speedup 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14872 a1c6a512-1295-4272-9138-f99709370657
 2007-09-27 18:29:50 +00:00
Nils Wallménius
0e49605aaa Move all of midiplay into its subdir and add a Makefile for it, add header files as necessary. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14841 a1c6a512-1295-4272-9138-f99709370657
 2007-09-24 15:57:32 +00:00