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850 lines
19 KiB
C++
850 lines
19 KiB
C++
/*
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TiMidity -- Experimental MIDI to WAVE converter
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Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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timidity.c
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*/
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <memory>
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#include <algorithm>
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#include <stdarg.h>
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#include <string.h>
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#include "timidity.h"
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#include "common.h"
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#include "instrum.h"
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#include "playmidi.h"
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namespace Timidity
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{
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static long ParseCommandLine(const char* args, int* argc, char** argv)
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{
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int count;
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char* buffplace;
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count = 0;
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buffplace = NULL;
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if (argv != NULL)
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{
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buffplace = argv[0];
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}
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for (;;)
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{
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while (*args <= ' ' && *args)
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{ // skip white space
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args++;
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}
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if (*args == 0)
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{
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break;
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}
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else if (*args == '\"')
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{ // read quoted string
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char stuff;
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if (argv != NULL)
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{
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argv[count] = buffplace;
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}
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count++;
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args++;
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do
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{
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stuff = *args++;
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if (stuff == '\"')
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{
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stuff = 0;
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}
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else if (stuff == 0)
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{
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args--;
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}
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if (argv != NULL)
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{
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*buffplace = stuff;
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}
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buffplace++;
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} while (stuff);
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}
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else
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{ // read unquoted string
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const char* start = args++, * end;
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while (*args && *args > ' ' && *args != '\"')
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args++;
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end = args;
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if (argv != NULL)
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{
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argv[count] = buffplace;
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while (start < end)
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* buffplace++ = *start++;
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*buffplace++ = 0;
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}
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else
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{
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buffplace += end - start + 1;
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}
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count++;
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}
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}
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if (argc != NULL)
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{
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*argc = count;
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}
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return (long)(buffplace - (char*)0);
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}
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class FCommandLine
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{
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public:
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FCommandLine(const char* commandline)
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{
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cmd = commandline;
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_argc = -1;
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_argv = NULL;
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argsize = 0;
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}
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~FCommandLine()
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{
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if (_argv != NULL)
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{
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delete[] _argv;
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}
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}
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int argc()
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{
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if (_argc == -1)
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{
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argsize = ParseCommandLine(cmd, &_argc, NULL);
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}
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return _argc;
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}
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char* operator[] (int i)
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{
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if (_argv == NULL)
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{
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int count = argc();
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_argv = new char* [count + (argsize + sizeof(char*) - 1) / sizeof(char*)];
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_argv[0] = (char*)_argv + count * sizeof(char*);
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ParseCommandLine(cmd, NULL, _argv);
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}
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return _argv[i];
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}
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const char* args() { return cmd; }
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void Shift()
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{
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// Only valid after _argv has been filled.
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for (int i = 1; i < _argc; ++i)
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{
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_argv[i - 1] = _argv[i];
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}
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}
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private:
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const char* cmd;
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int _argc;
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char** _argv;
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long argsize;
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};
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int Instruments::read_config_file(const char *name)
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{
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char tmp[1024], *cp;
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ToneBank *bank = NULL;
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int i, j, k, line = 0, words;
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static int rcf_count = 0;
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if (rcf_count > 50)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "Timidity: Probable source loop in configuration files\n");
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return (-1);
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}
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auto fp = sfreader->open_file(name);
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if (!fp)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "Timidity: Unable to open config file\n");
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return -1;
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}
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while (fp->gets(tmp, sizeof(tmp)))
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{
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line++;
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FCommandLine w(tmp);
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words = w.argc();
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if (words == 0) continue;
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/* Originally the TiMidity++ extensions were prefixed like this */
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if (strcmp(w[0], "#extension") == 0)
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{
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w.Shift();
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words--;
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}
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else if (*w[0] == '#')
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{
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continue;
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}
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for (i = 0; i < words; ++i)
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{
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if (*w[i] == '#')
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{
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words = i;
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break;
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}
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}
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/*
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* TiMidity++ adds a number of extensions to the config file format.
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* Many of them are completely irrelevant to SDL_sound, but at least
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* we shouldn't choke on them.
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*
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* Unfortunately the documentation for these extensions is often quite
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* vague, gramatically strange or completely absent.
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*/
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if (
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!strcmp(w[0], "comm") /* "comm" program second */
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|| !strcmp(w[0], "HTTPproxy") /* "HTTPproxy" hostname:port */
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|| !strcmp(w[0], "FTPproxy") /* "FTPproxy" hostname:port */
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|| !strcmp(w[0], "mailaddr") /* "mailaddr" your-mail-address */
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|| !strcmp(w[0], "opt") /* "opt" timidity-options */
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)
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{
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/*
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* + "comm" sets some kind of comment -- the documentation is too
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* vague for me to understand at this time.
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* + "HTTPproxy", "FTPproxy" and "mailaddr" are for reading data
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* over a network, rather than from the file system.
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* + "opt" specifies default options for TiMidity++.
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*
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* These are all quite useless for our version of TiMidity, so
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* they can safely remain no-ops.
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*/
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}
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else if (!strcmp(w[0], "timeout")) /* "timeout" program second */
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{
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/*
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* Specifies a timeout value of the program. A number of seconds
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* before TiMidity kills the note. This may be useful to implement
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* later, but I don't see any urgent need for it.
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*/
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//printMessage(CMSG_ERROR, VERB_NORMAL, "FIXME: Implement \"timeout\" in TiMidity config.\n");
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}
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else if (!strcmp(w[0], "copydrumset") /* "copydrumset" drumset */
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|| !strcmp(w[0], "copybank")) /* "copybank" bank */
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{
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/*
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* Copies all the settings of the specified drumset or bank to
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* the current drumset or bank. May be useful later, but not a
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* high priority.
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*/
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//printMessage(CMSG_ERROR, VERB_NORMAL, "FIXME: Implement \"%s\" in TiMidity config.\n", w[0]);
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}
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else if (!strcmp(w[0], "undef")) /* "undef" progno */
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{
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/*
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* Undefines the tone "progno" of the current tone bank (or
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* drum set?). Not a high priority.
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*/
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//printMessage(CMSG_ERROR, VERB_NORMAL, "FIXME: Implement \"undef\" in TiMidity config.\n");
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}
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else if (!strcmp(w[0], "altassign")) /* "altassign" prog1 prog2 ... */
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{
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/*
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* Sets the alternate assign for drum set. Whatever that's
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* supposed to mean.
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*/
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//printMessage(CMSG_ERROR, VERB_NORMAL, "FIXME: Implement \"altassign\" in TiMidity config.\n");
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}
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else if (!strcmp(w[0], "soundfont"))
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{
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/*
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* "soundfont" sf_file "remove"
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* "soundfont" sf_file ["order=" order] ["cutoff=" cutoff]
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* ["reso=" reso] ["amp=" amp]
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*/
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if (words < 2)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: No soundfont given\n", name, line);
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return -2;
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}
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if (words > 2 && !strcmp(w[2], "remove"))
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{
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font_remove(w[1]);
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}
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else
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{
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int order = 0;
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for (i = 2; i < words; ++i)
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{
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if (!(cp = strchr(w[i], '=')))
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: bad soundfont option %s\n", name, line, w[i]);
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return -2;
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}
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}
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font_add(w[1], order);
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}
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}
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else if (!strcmp(w[0], "font"))
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{
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/*
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* "font" "exclude" bank preset keynote
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* "font" "order" order bank preset keynote
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*/
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int order, drum = -1, bank = -1, instr = -1;
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if (words < 3)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: syntax error\n", name, line);
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return -2;
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}
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if (!strcmp(w[1], "exclude"))
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{
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order = 254;
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i = 2;
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}
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else if (!strcmp(w[1], "order"))
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{
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order = atoi(w[2]);
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i = 3;
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}
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else
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: font subcommand must be 'order' or 'exclude'\n", name, line);
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return -2;
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}
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if (i < words)
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{
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drum = atoi(w[i++]);
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}
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if (i < words)
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{
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bank = atoi(w[i++]);
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}
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if (i < words)
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{
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instr = atoi(w[i++]);
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}
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if (drum != 128)
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{
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instr = bank;
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bank = drum;
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drum = 0;
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}
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else
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{
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drum = 1;
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}
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font_order(order, drum, bank, instr);
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}
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else if (!strcmp(w[0], "progbase"))
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{
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/*
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* The documentation for this makes absolutely no sense to me, but
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* apparently it sets some sort of base offset for tone numbers.
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* Why anyone would want to do this is beyond me.
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*/
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//printMessage(CMSG_ERROR, VERB_NORMAL, "FIXME: Implement \"progbase\" in TiMidity config.\n");
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}
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else if (!strcmp(w[0], "map")) /* "map" name set1 elem1 set2 elem2 */
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{
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/*
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* This extension is the one we will need to implement, as it is
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* used by the "eawpats". Unfortunately I cannot find any
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* documentation whatsoever for it, but it looks like it's used
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* for remapping one instrument to another somehow.
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*/
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//printMessage(CMSG_ERROR, VERB_NORMAL, "FIXME: Implement \"map\" in TiMidity config.\n");
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}
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/* Standard TiMidity config */
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else if (!strcmp(w[0], "dir"))
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{
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if (words < 2)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: No directory given\n", name, line);
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return -2;
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}
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for (i = 1; i < words; i++)
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{
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// Q: How does this deal with relative paths? In this form it just does not work.
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sfreader->add_search_path(w[i]);
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}
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}
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else if (!strcmp(w[0], "source"))
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{
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if (words < 2)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: No file name given\n", name, line);
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return -2;
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}
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for (i=1; i<words; i++)
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{
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rcf_count++;
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read_config_file(w[i]);
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rcf_count--;
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}
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}
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else if (!strcmp(w[0], "default"))
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{
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if (words != 2)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: Must specify exactly one patch name\n", name, line);
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return -2;
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}
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def_instr_name = w[1];
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}
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else if (!strcmp(w[0], "drumset"))
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{
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if (words < 2)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: No drum set number given\n", name, line);
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return -2;
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}
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i = atoi(w[1]);
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if (i < 0 || i > 127)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: Drum set must be between 0 and 127\n", name, line);
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return -2;
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}
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if (drumset[i] == NULL)
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{
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drumset[i] = new ToneBank;
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}
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bank = drumset[i];
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}
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else if (!strcmp(w[0], "bank"))
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{
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if (words < 2)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: No bank number given\n", name, line);
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return -2;
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}
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i = atoi(w[1]);
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if (i < 0 || i > 127)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: Tone bank must be between 0 and 127\n", name, line);
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return -2;
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}
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if (tonebank[i] == NULL)
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{
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tonebank[i] = new ToneBank;
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}
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bank = tonebank[i];
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}
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else
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{
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if ((words < 2) || (*w[0] < '0' || *w[0] > '9'))
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: syntax error\n", name, line);
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return -2;
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}
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i = atoi(w[0]);
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if (i < 0 || i > 127)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: Program must be between 0 and 127\n", name, line);
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return -2;
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}
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if (bank == NULL)
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: Must specify tone bank or drum set before assignment\n", name, line);
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return -2;
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}
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bank->tone[i].note = bank->tone[i].pan =
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bank->tone[i].fontbank = bank->tone[i].fontpreset =
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bank->tone[i].fontnote = bank->tone[i].strip_loop =
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bank->tone[i].strip_envelope = bank->tone[i].strip_tail = -1;
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if (!strcmp(w[1], "%font"))
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{
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bank->tone[i].name = w[2];
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bank->tone[i].fontbank = atoi(w[3]);
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bank->tone[i].fontpreset = atoi(w[4]);
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if (words > 5 && (bank->tone[i].fontbank == 128 || (w[5][0] >= '0' && w[5][0] <= '9')))
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{
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bank->tone[i].fontnote = atoi(w[5]);
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j = 6;
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}
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else
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{
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j = 5;
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}
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font_add(w[2], 254);
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}
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else
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{
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bank->tone[i].name = w[1];
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j = 2;
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}
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for (; j<words; j++)
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{
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if (!(cp=strchr(w[j], '=')))
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: bad patch option %s\n", name, line, w[j]);
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return -2;
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}
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*cp++ = 0;
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if (!strcmp(w[j], "amp"))
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{
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/* Ignored */
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}
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else if (!strcmp(w[j], "note"))
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{
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k = atoi(cp);
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if ((k < 0 || k > 127) || (*cp < '0' || *cp > '9'))
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: note must be between 0 and 127\n", name, line);
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return -2;
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}
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bank->tone[i].note = k;
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}
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else if (!strcmp(w[j], "pan"))
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{
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if (!strcmp(cp, "center"))
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k = 64;
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else if (!strcmp(cp, "left"))
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k = 0;
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else if (!strcmp(cp, "right"))
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k = 127;
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else
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k = ((atoi(cp)+100) * 100) / 157;
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if ((k < 0 || k > 127) ||
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(k == 0 && *cp != '-' && (*cp < '0' || *cp > '9')))
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{
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printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: panning must be left, right, "
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"center, or between -100 and 100\n", name, line);
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return -2;
|
|
}
|
|
bank->tone[i].pan = k;
|
|
}
|
|
else if (!strcmp(w[j], "keep"))
|
|
{
|
|
if (!strcmp(cp, "env"))
|
|
bank->tone[i].strip_envelope = 0;
|
|
else if (!strcmp(cp, "loop"))
|
|
bank->tone[i].strip_loop = 0;
|
|
else
|
|
{
|
|
printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: keep must be env or loop\n", name, line);
|
|
return -2;
|
|
}
|
|
}
|
|
else if (!strcmp(w[j], "strip"))
|
|
{
|
|
if (!strcmp(cp, "env"))
|
|
bank->tone[i].strip_envelope = 1;
|
|
else if (!strcmp(cp, "loop"))
|
|
bank->tone[i].strip_loop = 1;
|
|
else if (!strcmp(cp, "tail"))
|
|
bank->tone[i].strip_tail = 1;
|
|
else
|
|
{
|
|
printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: strip must be env, loop, or tail\n", name, line);
|
|
return -2;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
printMessage(CMSG_ERROR, VERB_NORMAL, "%s: line %d: bad patch option %s\n", name, line, w[j]);
|
|
return -2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static char* gets(const char *&input, const char *eof, char* strbuf, size_t len)
|
|
{
|
|
if (ptrdiff_t(len) > eof - input) len = eof - input;
|
|
if (len <= 0) return nullptr;
|
|
|
|
char* p = strbuf;
|
|
while (len > 1)
|
|
{
|
|
if (*input == 0)
|
|
{
|
|
input++;
|
|
break;
|
|
}
|
|
if (*input != '\r')
|
|
{
|
|
*p++ = *input;
|
|
len--;
|
|
if (*input == '\n')
|
|
{
|
|
input++;
|
|
break;
|
|
}
|
|
}
|
|
input++;
|
|
}
|
|
if (p == strbuf) return nullptr;
|
|
*p++ = 0;
|
|
return strbuf;
|
|
}
|
|
|
|
int Instruments::LoadDMXGUS(int gus_memsize, const char* dmxgusdata, size_t dmxgussize)
|
|
{
|
|
char readbuffer[1024];
|
|
const char* eof = dmxgusdata + dmxgussize;
|
|
long read = 0;
|
|
uint8_t remap[256];
|
|
|
|
std::string patches[256];
|
|
memset(remap, 255, sizeof(remap));
|
|
char temp[16];
|
|
int current = -1;
|
|
int status = -1;
|
|
int gusbank = (gus_memsize >= 1 && gus_memsize <= 4) ? gus_memsize : -1;
|
|
|
|
while (gets(dmxgusdata, eof, readbuffer, 1024))
|
|
{
|
|
int i = 0;
|
|
while (readbuffer[i] != 0 && i < 1024)
|
|
{
|
|
// Don't try to parse comments
|
|
if (readbuffer[i] == '#') break;
|
|
// Actively ignore spaces
|
|
else if (readbuffer[i] == ' ') {}
|
|
// Comma separate values
|
|
else if (status >= 0 && status <= 4 && readbuffer[i] == ',')
|
|
{
|
|
if (++status == gusbank)
|
|
{
|
|
remap[current] = 0;
|
|
}
|
|
}
|
|
// Status -1: outside of a line
|
|
// Status 0: reading patch value
|
|
else if (status == -1 && readbuffer[i] >= '0' && readbuffer[i] <= '9')
|
|
{
|
|
current = readbuffer[i] - '0';
|
|
status = 0;
|
|
}
|
|
else if (status == 0 && readbuffer[i] >= '0' && readbuffer[i] <= '9')
|
|
{
|
|
current *= 10;
|
|
current += readbuffer[i] - '0';
|
|
}
|
|
// Status 1 through 4: remaps (256K, 512K, 768K, and 1024K resp.)
|
|
else if (status == gusbank && readbuffer[i] >= '0' && readbuffer[i] <= '9')
|
|
{
|
|
remap[current] *= 10;
|
|
remap[current] += readbuffer[i] - '0';
|
|
}
|
|
// Status 5: parsing patch name
|
|
else if (status == 5 && i < 1015)
|
|
{
|
|
memcpy(temp, readbuffer + i, 8);
|
|
for (int j = 0; j < 8; ++j)
|
|
{
|
|
if (temp[j] < 33)
|
|
{
|
|
temp[j] = 0;
|
|
break;
|
|
}
|
|
}
|
|
temp[8] = 0;
|
|
patches[current] = temp;
|
|
// Prepare to parse next line
|
|
status = -1;
|
|
break;
|
|
}
|
|
|
|
++i;
|
|
}
|
|
read += i;
|
|
if (i == 0) continue;
|
|
readbuffer[i-1] = 0;
|
|
}
|
|
|
|
/* Some functions get aggravated if not even the standard banks are available. */
|
|
if (tonebank[0] == NULL)
|
|
{
|
|
tonebank[0] = new ToneBank;
|
|
drumset[0] = new ToneBank;
|
|
}
|
|
|
|
// From 0 to 127: tonebank[0]; from 128 to 255: drumset[0].
|
|
ToneBank *bank = tonebank[0];
|
|
for (int k = 0; k < 256; ++k)
|
|
{
|
|
int j = (gusbank > 0) ? remap[k] : k;
|
|
if (k == 128) bank = drumset[0];
|
|
// No need to bother with things that don't exist
|
|
if (patches[j].length() == 0)
|
|
continue;
|
|
|
|
int val = k % 128;
|
|
bank->tone[val].note = bank->tone[val].pan =
|
|
bank->tone[val].fontbank = bank->tone[val].fontpreset =
|
|
bank->tone[val].fontnote = bank->tone[val].strip_loop =
|
|
bank->tone[val].strip_envelope = bank->tone[val].strip_tail = -1;
|
|
bank->tone[val].name = patches[j];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void FreeDLS(DLS_Data *data);
|
|
Renderer::Renderer(float sample_rate, int voices_, Instruments *inst)
|
|
{
|
|
int res = 0;
|
|
|
|
instruments = inst;
|
|
|
|
rate = sample_rate;
|
|
patches = NULL;
|
|
resample_buffer_size = 0;
|
|
resample_buffer = NULL;
|
|
voice = NULL;
|
|
adjust_panning_immediately = false;
|
|
|
|
control_ratio = std::min(1, std::max(MAX_CONTROL_RATIO, int(rate / CONTROLS_PER_SECOND)));
|
|
|
|
lost_notes = 0;
|
|
cut_notes = 0;
|
|
|
|
default_instrument = NULL;
|
|
default_program = DEFAULT_PROGRAM;
|
|
if (inst->def_instr_name.length() > 0)
|
|
set_default_instrument(inst->def_instr_name.c_str());
|
|
|
|
voices = std::max(voices_, 16);
|
|
voice = new Voice[voices];
|
|
drumchannels = DEFAULT_DRUMCHANNELS;
|
|
}
|
|
|
|
Renderer::~Renderer()
|
|
{
|
|
if (resample_buffer != NULL)
|
|
{
|
|
free(resample_buffer);
|
|
}
|
|
if (voice != NULL)
|
|
{
|
|
delete[] voice;
|
|
}
|
|
if (patches != NULL)
|
|
{
|
|
FreeDLS(patches);
|
|
}
|
|
}
|
|
|
|
void Renderer::ComputeOutput(float *buffer, int count)
|
|
{
|
|
// count is in samples, not bytes.
|
|
if (count <= 0)
|
|
{
|
|
return;
|
|
}
|
|
Voice *v = &voice[0];
|
|
|
|
memset(buffer, 0, sizeof(float)*count*2); // An integer 0 is also a float 0.
|
|
if (resample_buffer_size < count)
|
|
{
|
|
resample_buffer_size = count;
|
|
resample_buffer = (sample_t *)realloc(resample_buffer, count * sizeof(float) * 2);
|
|
}
|
|
for (int i = 0; i < voices; i++, v++)
|
|
{
|
|
if (v->status & VOICE_RUNNING)
|
|
{
|
|
mix_voice(this, buffer, v, count);
|
|
}
|
|
}
|
|
}
|
|
|
|
void Renderer::MarkInstrument(int banknum, int percussion, int instr)
|
|
{
|
|
ToneBank *bank;
|
|
|
|
if (banknum >= MAXBANK)
|
|
{
|
|
return;
|
|
}
|
|
if (banknum != 0)
|
|
{
|
|
/* Mark the standard bank in case it's not defined by this one. */
|
|
MarkInstrument(0, percussion, instr);
|
|
}
|
|
if (percussion)
|
|
{
|
|
bank = instruments->drumset[banknum];
|
|
}
|
|
else
|
|
{
|
|
bank = instruments->tonebank[banknum];
|
|
}
|
|
if (bank == NULL)
|
|
{
|
|
return;
|
|
}
|
|
if (bank->instrument[instr] == NULL)
|
|
{
|
|
bank->instrument[instr] = MAGIC_LOAD_INSTRUMENT;
|
|
}
|
|
}
|
|
|
|
static void default_cmsg(int type, int verbosity_level, const char* fmt, ...)
|
|
{
|
|
if (verbosity_level >= VERB_NOISY) return; // Don't waste time on diagnostics.
|
|
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
|
|
switch (type)
|
|
{
|
|
case CMSG_ERROR:
|
|
vprintf("Error: %s\n", args);
|
|
break;
|
|
|
|
case CMSG_WARNING:
|
|
vprintf("Warning: %s\n", args);
|
|
break;
|
|
|
|
case CMSG_INFO:
|
|
vprintf("Info: %s\n", args);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Allow hosting applications to capture the messages and deal with them themselves.
|
|
void (*printMessage)(int type, int verbosity_level, const char* fmt, ...) = default_cmsg;
|
|
|
|
|
|
}
|