raze-gles/source/rr/src/music.cpp
2019-09-19 00:27:46 +02:00

125 lines
3.3 KiB
C++

//-------------------------------------------------------------------------
/*
Copyright (C) 2016 EDuke32 developers and contributors
This file is part of EDuke32.
EDuke32 is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License version 2
as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
//-------------------------------------------------------------------------
// This object is shared by all Build games with MIDI playback!
#include "compat.h"
#include "music.h"
#include "midi.h"
#include "mpu401.h"
int32_t MUSIC_SoundDevice = -1;
int32_t MUSIC_ErrorCode = MUSIC_Ok;
static midifuncs MUSIC_MidiFunctions;
int32_t MUSIC_InitMidi(int32_t card, midifuncs *Funcs, int32_t Address);
#define MUSIC_SetErrorCode(status) MUSIC_ErrorCode = (status);
const char *MUSIC_ErrorString(int32_t ErrorNumber)
{
const char *ErrorString;
switch (ErrorNumber)
{
case MUSIC_Warning:
case MUSIC_Error: ErrorString = MUSIC_ErrorString(MUSIC_ErrorCode); break;
case MUSIC_Ok: ErrorString = "Music ok."; break;
case MUSIC_MidiError: ErrorString = "Error playing MIDI file."; break;
default: ErrorString = "Unknown Music error code."; break;
}
return ErrorString;
}
int32_t MUSIC_Init(int32_t SoundCard, int32_t Address)
{
MUSIC_SoundDevice = SoundCard;
return MUSIC_InitMidi(SoundCard, &MUSIC_MidiFunctions, Address);
}
int32_t MUSIC_Shutdown(void)
{
MIDI_StopSong();
return MUSIC_Ok;
}
void MUSIC_SetVolume(int32_t volume)
{
if (MUSIC_SoundDevice != -1)
MIDI_SetVolume(min(max(0, volume), 255));
}
int32_t MUSIC_GetVolume(void) { return MUSIC_SoundDevice == -1 ? 0 : MIDI_GetVolume(); }
void MUSIC_SetLoopFlag(int32_t loopflag) { MIDI_SetLoopFlag(loopflag); }
void MUSIC_Continue(void) { MIDI_ContinueSong(); }
void MUSIC_Pause(void) { MIDI_PauseSong(); }
int32_t MUSIC_StopSong(void)
{
MIDI_StopSong();
MUSIC_SetErrorCode(MUSIC_Ok);
return MUSIC_Ok;
}
int32_t MUSIC_PlaySong(char *song, int32_t songsize, int32_t loopflag)
{
UNREFERENCED_PARAMETER(songsize);
MUSIC_SetErrorCode(MUSIC_Ok)
if (MIDI_PlaySong(song, loopflag) != MIDI_Ok)
{
MUSIC_SetErrorCode(MUSIC_MidiError);
return MUSIC_Warning;
}
return MUSIC_Ok;
}
int32_t MUSIC_InitMidi(int32_t card, midifuncs *Funcs, int32_t Address)
{
UNREFERENCED_PARAMETER(card);
UNREFERENCED_PARAMETER(Address);
Funcs->NoteOff = MPU_NoteOff;
Funcs->NoteOn = MPU_NoteOn;
Funcs->PolyAftertouch = MPU_PolyAftertouch;
Funcs->ControlChange = MPU_ControlChange;
Funcs->ProgramChange = MPU_ProgramChange;
Funcs->ChannelAftertouch = MPU_ChannelAftertouch;
Funcs->PitchBend = MPU_PitchBend;
MIDI_SetMidiFuncs(Funcs);
return MIDI_Ok;
}
void MUSIC_Update(void) { MIDI_UpdateMusic(); }