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596 lines
12 KiB
C
596 lines
12 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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//-------------------------------------------------------------------------
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/**********************************************************************
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module: MUSIC.C
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author: James R. Dose
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date: March 25, 1994
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Device independant music playback routines.
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(c) Copyright 1994 James R. Dose. All Rights Reserved.
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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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#ifndef TRUE
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#define TRUE ( 1 == 1 )
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#define FALSE ( !TRUE )
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#endif
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#ifndef min
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#define min(a,b) (((a)<(b))?(a):(b))
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#endif
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#ifndef max
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# define max(a,b) ( ((a) > (b)) ? (a) : (b) )
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#endif
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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(int32_t card, midifuncs *Funcs, int32_t Address);
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#define MUSIC_SetErrorCode( status ) \
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MUSIC_ErrorCode = ( status );
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/*---------------------------------------------------------------------
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Function: MUSIC_ErrorString
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Returns a pointer to the error message associated with an error
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number. A -1 returns a pointer the current error.
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---------------------------------------------------------------------*/
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const char *MUSIC_ErrorString
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(
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int32_t ErrorNumber
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)
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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_ASSVersion :
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ErrorString = "Apogee Sound System Version WinMM "
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"Programmed by Jim Dose, Ported by Jonathon Fowler\n"
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"(c) Copyright 1996 James R. Dose. All Rights Reserved.\n";
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break;
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case MUSIC_SoundCardError :
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case MUSIC_MPU401Error :
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ErrorString = "Could not detect MPU-401.";
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break;
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case MUSIC_InvalidCard :
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ErrorString = "Invalid Music device.";
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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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case MUSIC_TaskManError :
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ErrorString = "TaskMan error.";
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break;
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case MUSIC_DPMI_Error :
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ErrorString = "DPMI Error in MUSIC.";
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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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/*---------------------------------------------------------------------
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Function: MUSIC_Init
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Selects which sound device to use.
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---------------------------------------------------------------------*/
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int32_t MUSIC_Init
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(
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int32_t SoundCard,
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int32_t Address
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)
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{
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int32_t i;
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int32_t status;
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for (i = 0; i < 128; i++)
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{
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MIDI_PatchMap[ i ] = i;
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}
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MUSIC_SoundDevice = SoundCard;
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status = MUSIC_InitMidi(SoundCard, &MUSIC_MidiFunctions, Address);
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return(status);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_Shutdown
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Terminates use of sound device.
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---------------------------------------------------------------------*/
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int32_t MUSIC_Shutdown
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(
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void
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)
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{
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int32_t status;
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status = MUSIC_Ok;
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MIDI_StopSong();
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//MPU_Reset();
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return(status);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_SetVolume
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Sets the volume of music playback.
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---------------------------------------------------------------------*/
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void MUSIC_SetVolume
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(
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int32_t volume
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)
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{
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volume = max(0, volume);
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volume = min(volume, 255);
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if (MUSIC_SoundDevice != -1)
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{
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MIDI_SetVolume(volume);
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}
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_SetMidiChannelVolume
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Sets the volume of music playback on the specified MIDI channel.
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---------------------------------------------------------------------*/
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void MUSIC_SetMidiChannelVolume
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(
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int32_t channel,
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int32_t volume
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)
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{
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MIDI_SetUserChannelVolume(channel, volume);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_ResetMidiChannelVolumes
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Sets the volume of music playback on all MIDI channels to full volume.
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---------------------------------------------------------------------*/
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void MUSIC_ResetMidiChannelVolumes
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(
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void
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)
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{
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MIDI_ResetUserChannelVolume();
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_GetVolume
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Returns the volume of music playback.
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---------------------------------------------------------------------*/
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int32_t MUSIC_GetVolume
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(
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void
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)
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{
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if (MUSIC_SoundDevice == -1)
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{
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return(0);
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}
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return(MIDI_GetVolume());
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_SetLoopFlag
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Set whether the music will loop or end when it reaches the end of
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the song.
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---------------------------------------------------------------------*/
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void MUSIC_SetLoopFlag
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(
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int32_t loopflag
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)
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{
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MIDI_SetLoopFlag(loopflag);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_SongPlaying
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Returns whether there is a song playing.
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---------------------------------------------------------------------*/
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int32_t MUSIC_SongPlaying
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(
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void
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)
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{
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return(MIDI_SongPlaying());
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_Continue
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Continues playback of a paused song.
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---------------------------------------------------------------------*/
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void MUSIC_Continue
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(
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void
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)
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{
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MIDI_ContinueSong();
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_Pause
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Pauses playback of a song.
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---------------------------------------------------------------------*/
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void MUSIC_Pause
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(
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void
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)
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{
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MIDI_PauseSong();
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_StopSong
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Stops playback of current song.
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---------------------------------------------------------------------*/
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int32_t MUSIC_StopSong
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(
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void
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)
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{
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MUSIC_StopFade();
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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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/*---------------------------------------------------------------------
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Function: MUSIC_PlaySong
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Begins playback of MIDI song.
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---------------------------------------------------------------------*/
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int32_t MUSIC_PlaySong
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(
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char *song,
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int32_t loopflag
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)
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{
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int32_t status;
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{
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MUSIC_StopSong();
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status = MIDI_PlaySong(song, loopflag);
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if (status != 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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}
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return(MUSIC_Ok);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_SetContext
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Sets the song context.
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---------------------------------------------------------------------*/
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void MUSIC_SetContext
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(
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int32_t context
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)
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{
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MIDI_SetContext(context);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_GetContext
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Returns the current song context.
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---------------------------------------------------------------------*/
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int32_t MUSIC_GetContext
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(
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void
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)
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{
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return MIDI_GetContext();
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_SetSongTick
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Sets the position of the song pointer.
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---------------------------------------------------------------------*/
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void MUSIC_SetSongTick
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(
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uint32_t PositionInTicks
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)
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{
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MIDI_SetSongTick(PositionInTicks);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_SetSongTime
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Sets the position of the song pointer.
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---------------------------------------------------------------------*/
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void MUSIC_SetSongTime
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(
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uint32_t milliseconds
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)
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{
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MIDI_SetSongTime(milliseconds);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_SetSongPosition
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Sets the position of the song pointer.
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---------------------------------------------------------------------*/
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void MUSIC_SetSongPosition
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(
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int32_t measure,
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int32_t beat,
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int32_t tick
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)
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{
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MIDI_SetSongPosition(measure, beat, tick);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_GetSongPosition
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Returns the position of the song pointer.
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---------------------------------------------------------------------*/
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void MUSIC_GetSongPosition
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(
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songposition *pos
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)
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{
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MIDI_GetSongPosition(pos);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_GetSongLength
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Returns the length of the song.
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---------------------------------------------------------------------*/
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void MUSIC_GetSongLength
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(
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songposition *pos
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)
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{
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MIDI_GetSongLength(pos);
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}
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int32_t MUSIC_InitMidi
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(
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int32_t card,
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midifuncs *Funcs,
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int32_t Address
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)
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{
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UNREFERENCED_PARAMETER(card);
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UNREFERENCED_PARAMETER(Address);
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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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Funcs->ReleasePatches = NULL;
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Funcs->LoadPatch = NULL;
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Funcs->SetVolume = NULL /*MPU_SetVolume*/;
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Funcs->GetVolume = NULL /*MPU_GetVolume*/;
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MIDI_SetMidiFuncs(Funcs);
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return(MIDI_Ok);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_FadeVolume
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Fades music volume from current level to another over a specified
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period of time.
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---------------------------------------------------------------------*/
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int32_t MUSIC_FadeVolume
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(
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int32_t tovolume,
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int32_t milliseconds
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)
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{
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UNREFERENCED_PARAMETER(milliseconds);
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MIDI_SetVolume(tovolume);
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return(MUSIC_Ok);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_FadeActive
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Returns whether the fade routine is active.
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---------------------------------------------------------------------*/
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int32_t MUSIC_FadeActive
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(
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void
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)
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{
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return(0);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_StopFade
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Stops fading the music.
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---------------------------------------------------------------------*/
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void MUSIC_StopFade
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(
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void
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)
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{}
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/*---------------------------------------------------------------------
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Function: MUSIC_RerouteMidiChannel
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Sets callback function to reroute MIDI commands from specified
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function.
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---------------------------------------------------------------------*/
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void MUSIC_RerouteMidiChannel
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(
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int32_t channel,
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int32_t(*function)(int32_t, int32_t, int32_t)
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)
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{
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MIDI_RerouteMidiChannel(channel, function);
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}
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/*---------------------------------------------------------------------
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Function: MUSIC_RegisterTimbreBank
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Halts playback of all sounds.
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---------------------------------------------------------------------*/
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void MUSIC_RegisterTimbreBank
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(
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char *timbres
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)
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{
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UNREFERENCED_PARAMETER(timbres);
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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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