Mercurial > SDL_sound_CoreAudio
view decoders/timidity/CHANGES @ 232:34000a50353b
Updated.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Sat, 19 Jan 2002 19:04:55 +0000 |
parents | 2d887640d300 |
children | cbc2a4ffeeec |
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This version of TiMidity should contain all the fixes from the December 13 2001 SDL_mixer CVS snapshot. In addition, I've made some changes of my own, e.g.: * All file access is done through SDL_RWops. This means the MIDI stream no longer has to be a file. (The config file and instruments still have to be though.) * Replacing of TiMidity's endian-handling with SDL's. * Removal of much unused or unnecessary code, such as + The "hooks" for putting a user interface onto TiMidity. + The antialias filter. It wasn't active, and even at 4 kHz I couldn't hear any difference when activating it. + Removed all traces of LOOKUP_HACK and LOOKUP_INTERPOLATION. According to the code comments they weren't very good anyway. ("degrades sound quality noticeably"). I also removed the disclaimer about the "8-bit uLaw to 16-bit PCM and the 13-bit-PCM to 8-bit uLaw tables" disclaimer, since I believe those were the tables I removed. + Removed LOOKUP_SINE since it was already commented out. I think we can count on our target audience having math co-processors nowadays. + Removed USE_LDEXP since it wasn't being used and "it doesn't make much of a difference either way". + Removed decompress hack from open_file() since it didn't look very portable. + Removed heaps of unnecessary constants. + Removed unused functions. + Assume that LINEAR_INTERPOLATION is always used, so remove all code dealing with it not being so. It's not that I think the difference in audio quality is that great, but since it wouldn't compile without code changes I assume no one's used it for quite some time... + Assume PRECALC_LOOPS is always defined. Judging by the comments it may not make much of a difference either way, so why maintain two versions of the same code? * Moving several static globals into the MidiSong struct. This includes sample rate, formate, etc. which are now all per-song. * Moved some typedefs (e.g. MidiSong) to timidity.h for easy inclusion into the MIDI decoder. * Added free_pathlist(). * Replaced TiMidity's own 8, 16 and 32-bit types with SDL's. * Made TiMidity look for its configuration file in both /etc and /usr/local/lib/timidity. (Windows version remains unchanged.) * Timidity_PlaySome() now takes three arguments. A MidiSong, a decode buffer and decode buffer size in bytes. (MidiSong is a new argument, and buffer size used to be in samples.) In addition, it will return the number of bytes decoded. * Added Timidity_Exit(). * Removed Timidity_Stop() and Timidity_Active(). Stopping playback should be handled by SDL_sound, and Timidity_PlaySome() will return 0 when the MIDI stream is finished. * Modified the ToneBank stuff to allow some data to be shared between MidiSongs. * The following files have been removed: controls.c, controls.h, filter.c, filter.h, sdl_a.c, sdl_c.c * config.h has been renamed as options.h to avoid confusion with the automatically generated config.h for SDL_sound.