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134 lines
3 KiB
C
134 lines
3 KiB
C
//-------------------------------------------------------------------------
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/*
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Copyright (C) 2016 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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//-------------------------------------------------------------------------
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#include <stdio.h>
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#include <stdlib.h>
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#include "music.h"
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#include "midi.h"
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#include "mpu401.h"
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#include "compat.h"
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int32_t MUSIC_SoundDevice = -1;
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int32_t MUSIC_ErrorCode = MUSIC_Ok;
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static midifuncs MUSIC_MidiFunctions;
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int32_t MUSIC_InitMidi(midifuncs *Funcs);
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#define MUSIC_SetErrorCode(status) MUSIC_ErrorCode = (status);
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const char *MUSIC_ErrorString(int32_t ErrorNumber)
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{
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const char *ErrorString;
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switch (ErrorNumber)
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{
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case MUSIC_Warning :
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case MUSIC_Error :
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ErrorString = MUSIC_ErrorString(MUSIC_ErrorCode);
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break;
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case MUSIC_Ok :
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ErrorString = "Music ok.";
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break;
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case MUSIC_MidiError :
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ErrorString = "Error playing MIDI file.";
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break;
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default :
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ErrorString = "Unknown Music error code.";
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break;
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}
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return(ErrorString);
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}
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int32_t MUSIC_Init(int32_t SoundCard)
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{
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for (int i = 0; i < 128; i++)
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MIDI_PatchMap[ i ] = i;
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MUSIC_SoundDevice = SoundCard;
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return MUSIC_InitMidi(&MUSIC_MidiFunctions);
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}
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int32_t MUSIC_Shutdown(void)
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{
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MIDI_StopSong();
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return MUSIC_Ok;
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}
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void MUSIC_SetVolume(int32_t volume)
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{
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volume = clamp(volume, 0, 255);
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if (MUSIC_SoundDevice != -1)
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MIDI_SetVolume(volume);
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}
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void MUSIC_Continue(void) { MIDI_ContinueSong(); }
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void MUSIC_Pause(void) { MIDI_PauseSong(); }
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int32_t MUSIC_StopSong(void)
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{
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MIDI_StopSong();
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MUSIC_SetErrorCode(MUSIC_Ok);
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return MUSIC_Ok;
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}
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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 (MIDI_PlaySong(song, loopflag) != MIDI_Ok)
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{
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MUSIC_SetErrorCode(MUSIC_MidiError);
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return MUSIC_Warning;
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}
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return MUSIC_Ok;
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}
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int32_t MUSIC_InitMidi(midifuncs *Funcs)
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{
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Funcs->NoteOff = MPU_NoteOff;
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Funcs->NoteOn = MPU_NoteOn;
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Funcs->PolyAftertouch = MPU_PolyAftertouch;
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Funcs->ControlChange = MPU_ControlChange;
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Funcs->ProgramChange = MPU_ProgramChange;
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Funcs->ChannelAftertouch = MPU_ChannelAftertouch;
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Funcs->PitchBend = MPU_PitchBend;
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MIDI_SetMidiFuncs(Funcs);
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return MIDI_Ok;
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}
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void MUSIC_Update(void)
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{
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MIDI_UpdateMusic();
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}
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