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https://github.com/libretro/scummvm.git
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c6568530bd
Miscellaneous upgrades and fixes to MidiParser, including the Smart Jump (which could not be tested before iMuse started making use of the MidiParser). *** THIS IS A BIG UPGRADE! EXTENSIVE REGRESSION TESTING IS NEEDED! *** This has been tested through the intros and a number of other scenes from MI2, FOA and S&M. NOTE! This upgrade introduces savegame format version V19. Earlier version savegames will load, but the music will simply start over from the beginning. Only V19 and later games will properly restore the position of the music! Don't say you weren't warned.... svn-id: r7849
145 lines
4.1 KiB
C++
145 lines
4.1 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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* Copyright (C) 2001-2003 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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. See the
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* 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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* $Header$
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*
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*/
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#ifndef SOUND_MIDIDRV_H
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#define SOUND_MIDIDRV_H
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#include "scummsys.h"
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class MidiChannel;
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// Abstract MIDI Driver Class
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class MidiDriver {
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public:
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virtual ~MidiDriver() { }
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// Error codes returned by open.
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// Can be converted to a string with getErrorName()
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enum {
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MERR_CANNOT_CONNECT = 1,
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// MERR_STREAMING_NOT_AVAILABLE = 2,
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MERR_DEVICE_NOT_AVAILABLE = 3,
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MERR_ALREADY_OPEN = 4
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};
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enum {
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// PROP_TIMEDIV = 1,
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PROP_OLD_ADLIB = 2
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};
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// Open the midi driver.
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// Returns 0 if successful, otherwise an error code.
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virtual int open() = 0;
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// Close the midi driver
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virtual void close() = 0;
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// Output a packed midi command to the midi stream
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virtual void send(uint32 b) = 0;
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// Get or set a property
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virtual uint32 property(int prop, uint32 param) { return 0; }
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// Retrieve a string representation of an error code
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static const char *getErrorName(int error_code);
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// HIGH-LEVEL SEMANTIC METHODS
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virtual void setPitchBendRange (byte channel, uint range)
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{
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send(( 0 << 16) | (101 << 8) | (0xB0 | channel));
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send(( 0 << 16) | (100 << 8) | (0xB0 | channel));
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send((range << 16) | ( 6 << 8) | (0xB0 | channel));
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send(( 0 << 16) | ( 38 << 8) | (0xB0 | channel));
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}
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virtual void sysEx (byte *msg, uint16 length) { }
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virtual void sysEx_customInstrument (byte channel, uint32 type, byte *instr) { }
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virtual void metaEvent (byte type, byte*data, uint16 length) { }
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// Timing functions - MidiDriver now operates timers
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virtual void setTimerCallback (void *timer_param, void (*timer_proc) (void *)) = 0;
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virtual uint32 getBaseTempo (void) = 0;
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// Channel allocation functions
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virtual MidiChannel *allocateChannel() = 0;
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virtual MidiChannel *getPercussionChannel() = 0;
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};
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class MidiChannel {
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public:
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virtual MidiDriver *device() = 0;
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virtual byte getNumber() = 0;
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virtual void release() = 0;
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// Regular messages
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virtual void noteOff (byte note) = 0;
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virtual void noteOn (byte note, byte velocity) = 0;
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virtual void programChange (byte program) = 0;
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virtual void pitchBend (int16 bend) = 0; // -0x2000 to +0x1FFF
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// Control Change messages
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virtual void controlChange (byte control, byte value) = 0;
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virtual void modulationWheel (byte value) = 0;
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virtual void volume (byte value) = 0;
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virtual void panPosition (byte value) = 0;
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virtual void pitchBendFactor (byte value) = 0;
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virtual void detune (byte value) = 0;
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virtual void priority (byte value) = 0;
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virtual void sustain (bool value) = 0;
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virtual void effectLevel (byte value) = 0;
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virtual void chorusLevel (byte value) = 0;
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virtual void allNotesOff() = 0;
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// SysEx messages
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virtual void sysEx_customInstrument (uint32 type, byte *instr) = 0;
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};
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// MIDI Driver Types
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enum {
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MD_AUTO = 0,
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MD_NULL = 1,
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MD_WINDOWS = 2,
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MD_TIMIDITY = 3,
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MD_SEQ = 4,
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MD_QTMUSIC = 5,
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MD_ETUDE = 6,
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MD_COREAUDIO = 7,
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MD_MIDIEMU = 8,
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MD_ALSA = 9,
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MD_ADLIB = 10,
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MD_YPA1 = 100 // palmos
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};
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// Factory functions, for faster compile
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extern MidiDriver *MidiDriver_NULL_create();
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extern MidiDriver *MidiDriver_ADLIB_create();
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extern MidiDriver *MidiDriver_WIN_create();
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extern MidiDriver *MidiDriver_SEQ_create();
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extern MidiDriver *MidiDriver_QT_create();
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extern MidiDriver *MidiDriver_CORE_create();
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extern MidiDriver *MidiDriver_ETUDE_create();
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extern MidiDriver *MidiDriver_ALSA_create();
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extern MidiDriver *MidiDriver_YamahaPa1_create();
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#endif
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