mirror of
https://github.com/DrBeef/Raze.git
synced 2024-11-16 01:11:28 +00:00
fcf9beae6a
Credit to Plagman for the idea and doing the work on the game side, which is included in this commit. (Building as C++ will give us features with which we can make improvements and optimizations on the multiplayer code and Polymer.) git-svn-id: https://svn.eduke32.com/eduke32@3116 1a8010ca-5511-0410-912e-c29ae57300e0
571 lines
14 KiB
C
571 lines
14 KiB
C
//-------------------------------------------------------------------------
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/*
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Copyright (C) 2010 EDuke32 developers and contributors
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This file is part of EDuke32.
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EDuke32 is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License version 2
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as published by the Free Software Foundation.
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This program 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.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; 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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*/
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//-------------------------------------------------------------------------
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/*
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* A reimplementation of Jim Dose's FX_MAN routines, using SDL_mixer 1.2.
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* Whee. FX_MAN is also known as the "Apogee Sound System", or "ASS" for
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* short. How strangely appropriate that seems.
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*/
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#include <stdio.h>
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#include <errno.h>
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#if defined __APPLE__ && defined __BIG_ENDIAN__
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// is* hacks for ppc...
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# include "compat.h"
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#endif
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#include "duke3d.h"
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#include "cache1d.h"
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#define _NEED_SDLMIXER 1
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#include "sdl_inc.h"
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#include "music.h"
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#if !defined _WIN32 && !defined(GEKKO)
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# define FORK_EXEC_MIDI 1
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#endif
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#if defined FORK_EXEC_MIDI // fork/exec based external midi player
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#include <stdlib.h>
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#include <signal.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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static char **external_midi_argv;
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static pid_t external_midi_pid=-1;
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static int8_t external_midi_restart=0;
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#endif
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static char *external_midi_tempfn = "/tmp/eduke32-music.mid";
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static int32_t external_midi = 0;
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int32_t MUSIC_ErrorCode = MUSIC_Ok;
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static char warningMessage[80];
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static char errorMessage[80];
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static int32_t music_initialized = 0;
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static int32_t music_context = 0;
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static int32_t music_loopflag = MUSIC_PlayOnce;
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static Mix_Music *music_musicchunk = NULL;
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static void setErrorMessage(const char *msg)
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{
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Bstrncpyz(errorMessage, msg, sizeof(errorMessage));
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}
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// The music functions...
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const char *MUSIC_ErrorString(int32_t ErrorNumber)
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{
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switch (ErrorNumber)
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{
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case MUSIC_Warning:
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return(warningMessage);
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case MUSIC_Error:
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return(errorMessage);
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case MUSIC_Ok:
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return("OK; no error.");
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case MUSIC_ASSVersion:
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return("Incorrect sound library version.");
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case MUSIC_SoundCardError:
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return("General sound card error.");
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case MUSIC_InvalidCard:
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return("Invalid sound card.");
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case MUSIC_MidiError:
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return("MIDI error.");
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case MUSIC_MPU401Error:
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return("MPU401 error.");
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case MUSIC_TaskManError:
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return("Task Manager error.");
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//case MUSIC_FMNotDetected:
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// return("FM not detected error.");
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case MUSIC_DPMI_Error:
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return("DPMI error.");
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default:
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return("Unknown error.");
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} // switch
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return(NULL);
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} // MUSIC_ErrorString
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int32_t MUSIC_Init(int32_t SoundCard, int32_t Address)
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{
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// Use an external MIDI player if the user has specified to do so
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char *command = getenv("EDUKE32_MUSIC_CMD");
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const SDL_version *linked = Mix_Linked_Version();
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UNREFERENCED_PARAMETER(SoundCard);
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UNREFERENCED_PARAMETER(Address);
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if (music_initialized)
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{
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setErrorMessage("Music system is already initialized.");
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return(MUSIC_Error);
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} // if
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if (SDL_VERSIONNUM(linked->major,linked->minor,linked->patch) < MIX_REQUIREDVERSION)
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{
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// reject running with SDL_Mixer versions older than what is stated in sdl_inc.h
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initprintf("You need at least v%d.%d.%d of SDL_mixer for music\n",SDL_MIXER_MIN_X,SDL_MIXER_MIN_Y,SDL_MIXER_MIN_Z);
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return(MUSIC_Error);
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}
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external_midi = (command != NULL && command[0] != 0);
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if (external_midi)
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{
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initprintf("Setting music command to \"%s\".\n", command);
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#if !defined FORK_EXEC_MIDI
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if (Mix_SetMusicCMD(command)==-1)
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{
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perror("Mix_SetMusicCMD");
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goto fallback;
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}
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#else
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int32_t ws=1, numargs=0, pagesize=sysconf(_SC_PAGE_SIZE);
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char *c, *cmd;
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size_t sz;
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if (pagesize==-1)
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goto fallback;
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for (c=command; *c; c++)
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{
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if (isspace(*c))
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ws = 1;
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else if (ws)
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{
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ws = 0;
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numargs++;
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}
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}
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if (numargs==0)
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goto fallback;
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sz = (numargs+2)*sizeof(char *) + (c-command+1);
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sz = ((sz+pagesize-1)/pagesize)*pagesize;
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#if defined(NEDMALLOC) || defined(__APPLE__) || defined(__ANDROID__)
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external_midi_argv = Bcalloc(1,sz+pagesize);
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if (!external_midi_argv)
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goto fallback;
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external_midi_argv = (char **)((intptr_t)external_midi_argv + (pagesize-(((intptr_t)external_midi_argv)&(pagesize-1))));
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#else
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if (posix_memalign((void **)&external_midi_argv, pagesize, sz))
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goto fallback;
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#endif
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cmd = (char *)external_midi_argv + (numargs+2)*sizeof(char *);
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Bmemcpy(cmd, command, c-command+1);
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ws = 1;
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numargs = 0;
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for (c=cmd; *c; c++)
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{
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if (isspace(*c))
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{
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ws = 1;
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*c = 0;
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}
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else if (ws)
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{
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ws = 0;
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external_midi_argv[numargs++] = c;
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}
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}
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external_midi_argv[numargs] = external_midi_tempfn;
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external_midi_argv[numargs+1] = NULL;
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if (mprotect(external_midi_argv, sz, PROT_READ)==-1) // make argv and command string read-only
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{
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perror("MUSIC_Init: mprotect");
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goto fallback;
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}
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/*
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{
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int i;
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initprintf("----Music argv:\n");
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for (i=0; i<numargs+1; i++)
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initprintf(" %s\n", external_midi_argv[i]);
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initprintf("----\n");
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}
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*/
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#endif
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music_initialized = 1;
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return(MUSIC_Ok);
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fallback:
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initprintf("Error setting music command, falling back to timidity.\n");
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}
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{
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static const char *s[] = { "/etc/timidity.cfg", "/etc/timidity/timidity.cfg", "/etc/timidity/freepats.cfg" };
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FILE *fp;
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int32_t i;
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for (i = (sizeof(s)/sizeof(s[0]))-1; i>=0; i--)
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{
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fp = Bfopen(s[i], "r");
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if (fp == NULL)
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{
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if (i == 0)
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{
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initprintf("Error: couldn't open any of the following files:\n");
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for (i = (sizeof(s)/sizeof(s[0]))-1; i>=0; i--)
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initprintf("%s\n",s[i]);
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return(MUSIC_Error);
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}
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continue;
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}
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else break;
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}
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Bfclose(fp);
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}
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music_initialized = 1;
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return(MUSIC_Ok);
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} // MUSIC_Init
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int32_t MUSIC_Shutdown(void)
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{
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// TODO - make sure this is being called from the menu -- SA
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#if !defined FORK_EXEC_MIDI
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if (external_midi)
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Mix_SetMusicCMD(NULL);
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#endif
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MUSIC_StopSong();
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music_context = 0;
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music_initialized = 0;
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music_loopflag = MUSIC_PlayOnce;
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return(MUSIC_Ok);
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} // MUSIC_Shutdown
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void MUSIC_SetMaxFMMidiChannel(int32_t channel)
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{
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UNREFERENCED_PARAMETER(channel);
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} // MUSIC_SetMaxFMMidiChannel
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void MUSIC_SetVolume(int32_t volume)
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{
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volume = max(0, volume);
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volume = min(volume, 255);
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Mix_VolumeMusic(volume >> 1); // convert 0-255 to 0-128.
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} // MUSIC_SetVolume
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void MUSIC_SetMidiChannelVolume(int32_t channel, int32_t volume)
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{
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UNREFERENCED_PARAMETER(channel);
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UNREFERENCED_PARAMETER(volume);
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} // MUSIC_SetMidiChannelVolume
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void MUSIC_ResetMidiChannelVolumes(void)
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{
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} // MUSIC_ResetMidiChannelVolumes
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int32_t MUSIC_GetVolume(void)
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{
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return(Mix_VolumeMusic(-1) << 1); // convert 0-128 to 0-255.
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} // MUSIC_GetVolume
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void MUSIC_SetLoopFlag(int32_t loopflag)
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{
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music_loopflag = loopflag;
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} // MUSIC_SetLoopFlag
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int32_t MUSIC_SongPlaying(void)
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{
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return((Mix_PlayingMusic()) ? TRUE : FALSE);
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} // MUSIC_SongPlaying
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void MUSIC_Continue(void)
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{
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if (Mix_PausedMusic())
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Mix_ResumeMusic();
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} // MUSIC_Continue
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void MUSIC_Pause(void)
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{
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Mix_PauseMusic();
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} // MUSIC_Pause
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int32_t MUSIC_StopSong(void)
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{
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#if defined FORK_EXEC_MIDI
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if (external_midi)
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{
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if (external_midi_pid > 0)
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{
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int32_t ret;
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struct timespec ts;
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external_midi_restart = 0; // make SIGCHLD handler a no-op
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ts.tv_sec = 0;
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ts.tv_nsec = 5000000; // sleep 5ms at most
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kill(external_midi_pid, SIGTERM);
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nanosleep(&ts, NULL);
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ret = waitpid(external_midi_pid, NULL, WNOHANG|WUNTRACED);
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// printf("(%d)", ret);
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if (ret != external_midi_pid)
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{
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if (ret==-1)
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perror("waitpid");
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else
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{
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// we tried to be nice, but no...
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kill(external_midi_pid, SIGKILL);
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initprintf("%s: wait for SIGTERM timed out.\n", __func__);
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if (waitpid(external_midi_pid, NULL, WUNTRACED)==-1)
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perror("waitpid (2)");
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}
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}
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external_midi_pid = -1;
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}
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return(MUSIC_Ok);
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}
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#endif
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//if (!fx_initialized)
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if (!Mix_QuerySpec(NULL, NULL, NULL))
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{
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setErrorMessage("Need FX system initialized, too. Sorry.");
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return(MUSIC_Error);
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} // if
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if ((Mix_PlayingMusic()) || (Mix_PausedMusic()))
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Mix_HaltMusic();
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if (music_musicchunk)
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Mix_FreeMusic(music_musicchunk);
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music_musicchunk = NULL;
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return(MUSIC_Ok);
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} // MUSIC_StopSong
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#if defined FORK_EXEC_MIDI
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static void playmusic()
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{
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pid_t pid = vfork();
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if (pid==-1) // error
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{
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initprintf("%s: vfork: %s\n", __func__, strerror(errno));
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}
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else if (pid==0) // child
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{
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// exec with PATH lookup
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if (execvp(external_midi_argv[0], external_midi_argv) < 0)
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{
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perror("execv");
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_exit(1);
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}
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}
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else // parent
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{
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external_midi_pid = pid;
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}
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}
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static void sigchld_handler(int signo)
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{
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if (signo==SIGCHLD && external_midi_restart)
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{
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int status;
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if (external_midi_pid > 0)
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{
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if (waitpid(external_midi_pid, &status, WUNTRACED)==-1)
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perror("waitpid (3)");
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if (WIFEXITED(status) && WEXITSTATUS(status)==0)
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{
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// loop ...
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playmusic();
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}
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}
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}
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}
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#endif
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// Duke3D-specific. --ryan.
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// void MUSIC_PlayMusic(char *_filename)
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int32_t MUSIC_PlaySong(char *song, int32_t loopflag)
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{
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MUSIC_StopSong();
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if (external_midi)
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{
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FILE *fp;
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#if defined FORK_EXEC_MIDI
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static int32_t sigchld_handler_set = 0;
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if (!sigchld_handler_set)
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{
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struct sigaction sa;
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sa.sa_handler=sigchld_handler;
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sa.sa_flags=0;
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sigemptyset(&sa.sa_mask);
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if (sigaction(SIGCHLD, &sa, NULL)==-1)
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initprintf("%s: sigaction: %s\n", __func__, strerror(errno));
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sigchld_handler_set = 1;
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}
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#endif
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fp = Bfopen(external_midi_tempfn, "wb");
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if (fp)
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{
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fwrite(song, 1, g_musicSize, fp);
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Bfclose(fp);
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#if defined FORK_EXEC_MIDI
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external_midi_restart = loopflag;
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playmusic();
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#else
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music_musicchunk = Mix_LoadMUS(external_midi_tempfn);
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if (!music_musicchunk)
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initprintf("Mix_LoadMUS: %s\n", Mix_GetError());
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#endif
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}
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else initprintf("%s: fopen: %s\n", __func__, strerror(errno));
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}
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else
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music_musicchunk = Mix_LoadMUS_RW(SDL_RWFromMem((char *) song, g_musicSize));
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if (music_musicchunk != NULL)
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if (Mix_PlayMusic(music_musicchunk, (loopflag == MUSIC_LoopSong)?-1:0) == -1)
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initprintf("Mix_PlayMusic: %s\n", Mix_GetError());
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return MUSIC_Ok;
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}
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void MUSIC_SetContext(int32_t context)
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{
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music_context = context;
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} // MUSIC_SetContext
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int32_t MUSIC_GetContext(void)
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{
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return(music_context);
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} // MUSIC_GetContext
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void MUSIC_SetSongTick(uint32_t PositionInTicks)
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{
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UNREFERENCED_PARAMETER(PositionInTicks);
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} // MUSIC_SetSongTick
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void MUSIC_SetSongTime(uint32_t milliseconds)
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{
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UNREFERENCED_PARAMETER(milliseconds);
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}// MUSIC_SetSongTime
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void MUSIC_SetSongPosition(int32_t measure, int32_t beat, int32_t tick)
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{
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UNREFERENCED_PARAMETER(measure);
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UNREFERENCED_PARAMETER(beat);
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UNREFERENCED_PARAMETER(tick);
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} // MUSIC_SetSongPosition
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void MUSIC_GetSongPosition(songposition *pos)
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{
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UNREFERENCED_PARAMETER(pos);
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} // MUSIC_GetSongPosition
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void MUSIC_GetSongLength(songposition *pos)
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{
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UNREFERENCED_PARAMETER(pos);
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} // MUSIC_GetSongLength
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int32_t MUSIC_FadeVolume(int32_t tovolume, int32_t milliseconds)
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{
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UNREFERENCED_PARAMETER(tovolume);
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Mix_FadeOutMusic(milliseconds);
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return(MUSIC_Ok);
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} // MUSIC_FadeVolume
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int32_t MUSIC_FadeActive(void)
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{
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return((Mix_FadingMusic() == MIX_FADING_OUT) ? TRUE : FALSE);
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} // MUSIC_FadeActive
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void MUSIC_StopFade(void)
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{
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} // MUSIC_StopFade
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void MUSIC_RerouteMidiChannel(int32_t channel, int32_t (*function)(int32_t, int32_t, int32_t))
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{
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UNREFERENCED_PARAMETER(channel);
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UNREFERENCED_PARAMETER(function);
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} // MUSIC_RerouteMidiChannel
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void MUSIC_RegisterTimbreBank(char *timbres)
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{
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UNREFERENCED_PARAMETER(timbres);
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} // MUSIC_RegisterTimbreBank
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void MUSIC_Update(void)
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{}
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