mirror of https://github.com/ZDoom/gzdoom.git
59 lines
2.6 KiB
Plaintext
59 lines
2.6 KiB
Plaintext
This version of TiMidity should contain all the fixes from the
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September 25 2003 SDL_mixer CVS snapshot, plus extended GUS patch
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support from later SDL_mixer. In addition, it contains these changes
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from SDL_sound:
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* Removal of much unused or unnecessary code, such as
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+ The "hooks" for putting a user interface onto TiMidity.
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+ The antialias filter. It wasn't active, and even at 4 kHz I
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couldn't hear any difference when activating it.
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+ Removed all traces of LOOKUP_HACK and LOOKUP_INTERPOLATION.
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According to the code comments they weren't very good anyway.
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("degrades sound quality noticeably"). I also removed the
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disclaimer about the "8-bit uLaw to 16-bit PCM and the 13-bit-PCM
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to 8-bit uLaw tables" disclaimer, since I believe those were the
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tables I removed.
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+ Removed LOOKUP_SINE since it was already commented out. I think we
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can count on our target audience having math co-processors
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nowadays.
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+ Removed USE_LDEXP since it wasn't being used and "it doesn't make
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much of a difference either way".
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+ Removed decompress hack from open_file() since it didn't look very
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portable.
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+ Removed heaps of unnecessary constants.
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+ Removed unused functions.
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+ Assume that LINEAR_INTERPOLATION is always used, so remove all
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code dealing with it not being so. It's not that I think the
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difference in audio quality is that great, but since it wouldn't
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compile without code changes I assume no one's used it for quite
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some time...
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+ Assume PRECALC_LOOPS is always defined. Judging by the comments it
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may not make much of a difference either way, so why maintain two
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versions of the same code?
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* Made TiMidity look for its configuration file in both /etc and
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/usr/local/lib/timidity. (Windows version remains unchanged.)
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* The following files have been removed: controls.c, controls.h,
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filter.c, filter.h, sdl_a.c, sdl_c.c
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* Added support for loading DLS format instruments:
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Timidity_LoadDLS(), Timidity_FreeDLS(), Timidity_LoadDLSSong()
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This version of TiMidity also contains my own changes for ZDoom:
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* Removed readmidi.c: TiMidity is now fed MIDI events directly to
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produce output. The TimidityMIDIDevice class is responsible for
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feeding TiMidity data and collecting output from it. Since
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ZDoom's MIDI parser ignores SysEx messages, so does this TiMidity,
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though this can be changed if necessary.
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* Removed all the precalculated math from tables.c in favor of using
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real math functions.
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* All sample values are now floats, and only a stereo 32-bit float
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output buffer is supported.
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* Moved everything into the Timidity namespace.
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