Mercurial > SDL_sound_CoreAudio
diff decoders/timidity/options.h @ 199:2d887640d300
Initial add.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Fri, 04 Jan 2002 06:49:49 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/decoders/timidity/options.h Fri Jan 04 06:49:49 2002 +0000 @@ -0,0 +1,113 @@ +/* + TiMidity -- Experimental MIDI to WAVE converter + Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +/* When a patch file can't be opened, one of these extensions is + appended to the filename and the open is tried again. + */ +#define PATCH_EXT_LIST { ".pat", 0 } + +/* Acoustic Grand Piano seems to be the usual default instrument. */ +#define DEFAULT_PROGRAM 0 + +/* 9 here is MIDI channel 10, which is the standard percussion channel. + Some files (notably C:\WINDOWS\CANYON.MID) think that 16 is one too. + On the other hand, some files know that 16 is not a drum channel and + try to play music on it. This is now a runtime option, so this isn't + a critical choice anymore. */ +#define DEFAULT_DRUMCHANNELS ((1<<9) | (1<<15)) + +/* In percent. */ +#define DEFAULT_AMPLIFICATION 70 + +/* Default polyphony */ +#define DEFAULT_VOICES 32 + +/* 1000 here will give a control ratio of 22:1 with 22 kHz output. + Higher CONTROLS_PER_SECOND values allow more accurate rendering + of envelopes and tremolo. The cost is CPU time. */ +#define CONTROLS_PER_SECOND 1000 + +/* Make envelopes twice as fast. Saves ~20% CPU time (notes decay + faster) and sounds more like a GUS. There is now a command line + option to toggle this as well. */ +#define FAST_DECAY + +/* How many bits to use for the fractional part of sample positions. + This affects tonal accuracy. The entire position counter must fit + in 32 bits, so with FRACTION_BITS equal to 12, the maximum size of + a sample is 1048576 samples (2 megabytes in memory). The GUS gets + by with just 9 bits and a little help from its friends... + "The GUS does not SUCK!!!" -- a happy user :) */ +#define FRACTION_BITS 12 + +/* For some reason the sample volume is always set to maximum in all + patch files. Define this for a crude adjustment that may help + equalize instrument volumes. */ +#define ADJUST_SAMPLE_VOLUMES + +/* The number of samples to use for ramping out a dying note. Affects + click removal. */ +#define MAX_DIE_TIME 20 + +/**************************************************************************/ +/* Anything below this shouldn't need to be changed unless you're porting + to a new machine with other than 32-bit, big-endian words. */ +/**************************************************************************/ + +/* change FRACTION_BITS above, not these */ +#define INTEGER_MASK (0xFFFFFFFF << FRACTION_BITS) +#define FRACTION_MASK (~ INTEGER_MASK) + +/* This is enforced by some computations that must fit in an int */ +#define MAX_CONTROL_RATIO 255 + +#define MAX_AMPLIFICATION 800 + +/* The TiMidity configuration file */ +#define CONFIG_FILE "timidity.cfg" + +/* These affect general volume */ +#define GUARD_BITS 3 +#define AMP_BITS (15-GUARD_BITS) + +#define MAX_AMP_VALUE ((1<<(AMP_BITS+1))-1) + +#define FSCALE(a,b) (float)((a) * (double)(1<<(b))) +#define FSCALENEG(a,b) (float)((a) * (1.0L / (double)(1<<(b)))) + +/* Vibrato and tremolo Choices of the Day */ +#define SWEEP_TUNING 38 +#define VIBRATO_AMPLITUDE_TUNING 1.0L +#define VIBRATO_RATE_TUNING 38 +#define TREMOLO_AMPLITUDE_TUNING 1.0L +#define TREMOLO_RATE_TUNING 38 + +#define SWEEP_SHIFT 16 +#define RATE_SHIFT 5 + +#ifndef PI + #define PI 3.14159265358979323846 +#endif + +/* The path separator (D.M.) */ +#ifdef WIN32 +# define PATH_SEP '\\' +#else +# define PATH_SEP '/' +#endif