[Scummvm-cvs-logs] CVS: scummvm/sound mididrv.cpp,NONE,1.1
Ludvig Strigeus
strigeus at users.sourceforge.net
Sat Apr 13 11:35:04 CEST 2002
- Previous message: [Scummvm-cvs-logs] CVS: scummvm gameDetector.cpp,1.9,1.10 gameDetector.h,1.6,1.7 main.cpp,1.2,1.3 resource.cpp,1.66,1.67 scumm.h,1.116,1.117 scummvm.cpp,1.107,1.108 scummvm.dsp,1.35,1.36 sdl.cpp,1.88,1.89 sound.cpp,1.39,1.40 sound.h,1.14,1.15 system.h,1.3,1.4
- Next message: [Scummvm-cvs-logs] CVS: scummvm/simon simon.h,1.3,1.4 midi.cpp,1.4,1.5
- Messages sorted by:
[ date ]
[ thread ]
[ subject ]
[ author ]
Update of /cvsroot/scummvm/scummvm/sound
In directory usw-pr-cvs1:/tmp/cvs-serv8909
Added Files:
mididrv.cpp
Log Message:
new midi driver API,
no more USE_ADLIB,
a couple of sdl graphics driver fixes.
--- NEW FILE: mididrv.cpp ---
/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001/2002 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header: /cvsroot/scummvm/scummvm/sound/mididrv.cpp,v 1.1 2002/04/13 18:34:11 strigeus Exp $
*/
/*
* Timidity support by Lionel Ulmer <lionel.ulmer at free.fr>
* QuickTime support by Florent Boudet <flobo at ifrance.com>
* Raw output support by Michael Pearce
* MorphOS support by Ruediger Hanke
*/
#ifdef __MORPHOS__
#include <devices/timer.h>
#endif
#include "stdafx.h"
#include "scumm.h"
#include "gmidi.h"
#ifdef WIN32
/* Windows MIDI driver */
class MidiDriver_WIN : public MidiDriver {
public:
void destroy();
int open(int mode);
void close();
void send(uint32 b);
void pause(bool pause);
void set_stream_callback(void *param, StreamCallback *sc);
private:
struct MyMidiHdr {
MIDIHDR hdr;
};
enum {
NUM_PREPARED_HEADERS=2,
MIDI_EVENT_SIZE = 64,
BUFFER_SIZE = MIDI_EVENT_SIZE * 12,
};
StreamCallback *_stream_proc;
void *_stream_param;
int _mode;
HMIDIOUT _mo;
HMIDISTRM _ms;
MyMidiHdr *_prepared_headers;
uint16 _time_div;
void unprepare();
void prepare();
void check_error(MMRESULT result);
void fill_all();
uint32 property(int prop, uint32 param);
static void CALLBACK midi_callback(HMIDIOUT hmo, UINT wMsg,
DWORD dwInstance, DWORD dwParam1, DWORD dwParam2);
};
void MidiDriver_WIN::set_stream_callback(void *param, StreamCallback *sc) {
_stream_param = param;
_stream_proc = sc;
}
void MidiDriver_WIN::destroy() {
close();
delete this;
}
void CALLBACK MidiDriver_WIN::midi_callback(HMIDIOUT hmo, UINT wMsg,
DWORD dwInstance, DWORD dwParam1, DWORD dwParam2) {
switch(wMsg) {
case MM_MOM_DONE:{
MidiDriver_WIN *md = ((MidiDriver_WIN*)dwInstance);
if (md->_mode)
md->fill_all();
break;
}
}
}
int MidiDriver_WIN::open(int mode) {
if (_mode != 0)
return MERR_ALREADY_OPEN;
_mode = mode;
if (mode == MO_SIMPLE) {
MMRESULT res = midiOutOpen((HMIDIOUT *) &_mo, MIDI_MAPPER, NULL, NULL, 0);
if (res != MMSYSERR_NOERROR)
check_error(res);
} else {
/* streaming mode */
MIDIPROPTIMEDIV mptd;
UINT _midi_device_id = 0;
check_error(midiStreamOpen(&_ms, &_midi_device_id, 1,
(uint32)midi_callback, (uint32)this, CALLBACK_FUNCTION));
prepare();
mptd.cbStruct = sizeof(mptd);
mptd.dwTimeDiv = _time_div;
check_error(midiStreamProperty(_ms, (byte*)&mptd,
MIDIPROP_SET | MIDIPROP_TIMEDIV));
fill_all();
}
return 0;
}
void MidiDriver_WIN::fill_all() {
if (_stream_proc == NULL) {
error("MidiDriver_WIN::fill_all() called, but _stream_proc==NULL");
}
uint i;
MyMidiHdr *mmh = _prepared_headers;
MidiEvent my_evs[64];
for(i=0; i!=NUM_PREPARED_HEADERS; i++,mmh++) {
if (!(mmh->hdr.dwFlags & MHDR_INQUEUE)) {
int num = _stream_proc(_stream_param, my_evs, 64);
int i;
/* end of stream? */
if (num == 0)
break;
MIDIEVENT *ev = (MIDIEVENT*)mmh->hdr.lpData;
MidiEvent *my_ev = my_evs;
for(i=0; i!=num; i++,my_ev++) {
ev->dwStreamID = 0;
ev->dwDeltaTime = my_ev->delta;
switch(my_ev->event>>24) {
case 0:
ev->dwEvent = my_ev->event;
break;
case ME_TEMPO:
/* change tempo event */
ev->dwEvent = (MEVT_TEMPO<<24) | (my_ev->event&0xFFFFFF);
break;
default:
error("Invalid event type passed");
}
/* increase stream pointer by 12 bytes
* (need to be 12 bytes, and sizeof(MIDIEVENT) is 16)
*/
ev = (MIDIEVENT*)((byte*)ev + 12);
}
mmh->hdr.dwBytesRecorded = num * 12;
check_error(midiStreamOut(_ms, &mmh->hdr, sizeof(mmh->hdr)));
}
}
}
void MidiDriver_WIN::prepare() {
int i;
MyMidiHdr *mmh;
_prepared_headers = (MyMidiHdr*)calloc(sizeof(MyMidiHdr), 2);
for(i=0,mmh=_prepared_headers; i!=NUM_PREPARED_HEADERS; i++,mmh++) {
mmh->hdr.dwBufferLength = BUFFER_SIZE;
mmh->hdr.lpData = (LPSTR)calloc(BUFFER_SIZE,1);
check_error(midiOutPrepareHeader(
(HMIDIOUT)_ms, &mmh->hdr, sizeof(mmh->hdr)));
}
}
void MidiDriver_WIN::unprepare() {
uint i;
MyMidiHdr *mmh = _prepared_headers;
for(i=0; i!=NUM_PREPARED_HEADERS; i++,mmh++) {
check_error(midiOutUnprepareHeader(
(HMIDIOUT)_ms, &mmh->hdr, sizeof(mmh->hdr)));
free(mmh->hdr.lpData);
mmh->hdr.lpData = NULL;
}
free(_prepared_headers);
}
void MidiDriver_WIN::close() {
int mode_was = _mode;
_mode = 0;
switch(mode_was) {
case MO_SIMPLE:
check_error(midiOutClose(_mo));
break;
case MO_STREAMING:;
check_error(midiStreamStop(_ms));
check_error(midiOutReset((HMIDIOUT)_ms));
unprepare();
check_error(midiStreamClose(_ms));
break;
}
}
void MidiDriver_WIN::send(uint32 b) {
if (_mode != MO_SIMPLE)
error("MidiDriver_WIN:send called but driver is not in simple mode");
check_error(midiOutShortMsg(_mo, b));
}
void MidiDriver_WIN::pause(bool pause) {
if (_mode == MO_STREAMING) {
if (pause)
check_error(midiStreamPause(_ms));
else
check_error(midiStreamRestart(_ms));
}
}
void MidiDriver_WIN::check_error(MMRESULT result) {
char buf[200];
if (result != MMSYSERR_NOERROR) {
midiOutGetErrorText(result, buf, 200);
error("MM System Error '%s'", buf);
}
}
uint32 MidiDriver_WIN::property(int prop, uint32 param) {
switch(prop) {
/* 16-bit time division according to standard midi specification */
case PROP_TIMEDIV:
_time_div = (uint16)param;
return 1;
}
return 0;
}
MidiDriver *MidiDriver_WIN_create() {
return new MidiDriver_WIN();
}
#endif // WIN32
/* NULL driver */
class MidiDriver_NULL : public MidiDriver {
public:
void destroy();
int open(int mode);
void close();
void send(uint32 b);
void pause(bool pause);
void set_stream_callback(void *param, StreamCallback *sc);
uint32 property(int prop, uint32 param);
private:
};
int MidiDriver_NULL::open(int mode) {
warning("Music not enabled - MIDI support selected with no MIDI driver available. Try Adlib");
return 0;
}
void MidiDriver_NULL::close() {}
void MidiDriver_NULL::destroy() {}
void MidiDriver_NULL::send(uint32 b) {}
void MidiDriver_NULL::pause(bool pause) {}
void MidiDriver_NULL::set_stream_callback(void *param, StreamCallback *sc) {}
uint32 MidiDriver_NULL::property(int prop, uint32 param) { return 0; }
MidiDriver *MidiDriver_NULL_create() {
return new MidiDriver_NULL();
}
/* retrieve a string representation of an error code */
const char *MidiDriver::get_error_name(int error_code) {
static const char * const midi_errors[] = {
"No error",
"Cannot connect",
"Streaming not available",
"Device not available",
"Driver already open"
};
if ((uint)error_code >= ARRAYSIZE(midi_errors))
return "Unknown Error";
return midi_errors[error_code];
}
#if 0
void MidiDriver::midiInit()
{
if (MidiInitialized != true) {
switch (DeviceType) {
case MIDI_NULL:
midiInitNull();
break;
case MIDI_WINDOWS:
midiInitWindows();
break;
case MIDI_TIMIDITY:
midiInitTimidity();
break;
case MIDI_SEQ:
midiInitSeq();
break;
case MIDI_QTMUSIC:
midiInitQuicktime();
break;
case MIDI_AMIDI:
break;
default:
DeviceType = 0;
midiInitNull();
break;
}
MidiInitialized = true;
} else {
error("Midi driver already initialized");
}
}
void MidiDriver::MidiOut(int b)
{
if (MidiInitialized != true)
midiInit();
if (MidiInitialized == true) {
switch (DeviceType) {
case MIDI_NULL:
break;
case MIDI_WINDOWS:
MidiOutWindows(_mo, b);
break;
case MIDI_TIMIDITY:
case MIDI_SEQ:
MidiOutSeq(_mo, b);
break;
case MIDI_QTMUSIC:
MidiOutQuicktime(_mo, b);
break;
case MIDI_AMIDI:
MidiOutMorphOS(_mo, b);
break;
default:
error("Invalid midi device type ");
break;
}
} else {
warning("Trying to write midi data without the driver being initialized");
}
}
/*********** Windows */
void MidiDriver::midiInitWindows()
{
#ifdef WIN32
if (midiOutOpen((HMIDIOUT *) & _mo, MIDI_MAPPER, NULL, NULL, 0) !=
MMSYSERR_NOERROR)
error("midiOutOpen failed");
#endif
}
void MidiDriver::MidiOutWindows(void *a, int b)
{
#ifdef WIN32
midiOutShortMsg((HMIDIOUT) a, b);
#endif
}
/*********** Raw midi support */
void MidiDriver::midiInitSeq()
{
int device = open_sequencer_device();
_mo = (void *)device;
}
int MidiDriver::open_sequencer_device()
{
int device = 0;
#if !defined(__APPLE__CW) // No getenv support on Apple Carbon
char *device_name = getenv("SCUMMVM_MIDI");
if (device_name != NULL) {
device = (open((device_name), O_RDWR, 0));
} else {
warning
("You need to set-up the SCUMMVM_MIDI environment variable properly (see readme.txt) ");
}
if ((device_name == NULL) || (device < 0)) {
if (device_name == NULL)
warning("Opening /dev/null (no music will be heard) ");
else
warning
("Cannot open rawmidi device %s - using /dev/null (no music will be heard) ",
device_name);
device = (open(("/dev/null"), O_RDWR, 0));
if (device < 0)
error("Cannot open /dev/null to dump midi output");
}
#endif
return device;
}
/*********** Timidity */
int MidiDriver::connect_to_timidity(int port)
{
int s = 0;
#if !defined(__APPLE__CW) && !defined(__MORPHOS__) // No socket support on Apple Carbon or Morphos
struct hostent *serverhost;
struct sockaddr_in sadd;
serverhost = gethostbyname("localhost");
if (serverhost == NULL)
error("Could not resolve Timidity host ('localhost')");
sadd.sin_family = serverhost->h_addrtype;
sadd.sin_port = htons(port);
memcpy(&(sadd.sin_addr), serverhost->h_addr_list[0], serverhost->h_length);
s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0)
error("Could not open Timidity socket");
if (connect(s, (struct sockaddr *)&sadd, sizeof(struct sockaddr_in)) < 0)
error("Could not connect to Timidity server");
#endif
return s;
}
void MidiDriver::midiInitTimidity()
{
int s, s2;
int len;
int dummy, newport;
char buf[256];
s = connect_to_timidity(7777);
len = read(s, buf, 256); // buf[len] = '\0'; printf("%s", buf);
sprintf(buf, "SETBUF %f %f\n", 0.1, 0.15);
write(s, buf, strlen(buf));
len = read(s, buf, 256); // buf[len] = '\0'; printf("%s", buf);
sprintf(buf, "OPEN lsb\n");
write(s, buf, strlen(buf));
len = read(s, buf, 256); // buf[len] = '\0'; printf("%s", buf);
sscanf(buf, "%d %d", &dummy, &newport);
printf(" => port = %d\n", newport);
s2 = connect_to_timidity(newport);
_mo = (void *)s2;
}
void MidiDriver::MidiOutSeq(void *a, int b)
{
int s = (int)a;
unsigned char buf[256];
int position = 0;
switch (b & 0xF0) {
case 0x80:
case 0x90:
case 0xA0:
case 0xB0:
case 0xE0:
buf[position++] = SEQ_MIDIPUTC;
buf[position++] = b;
buf[position++] = DEVICE_NUM;
buf[position++] = 0;
buf[position++] = SEQ_MIDIPUTC;
buf[position++] = (b >> 8) & 0x7F;
buf[position++] = DEVICE_NUM;
buf[position++] = 0;
buf[position++] = SEQ_MIDIPUTC;
buf[position++] = (b >> 16) & 0x7F;
buf[position++] = DEVICE_NUM;
buf[position++] = 0;
break;
case 0xC0:
case 0xD0:
buf[position++] = SEQ_MIDIPUTC;
buf[position++] = b;
buf[position++] = DEVICE_NUM;
buf[position++] = 0;
buf[position++] = SEQ_MIDIPUTC;
buf[position++] = (b >> 8) & 0x7F;
buf[position++] = DEVICE_NUM;
buf[position++] = 0;
break;
default:
fprintf(stderr, "Unknown : %08x\n", b);
break;
}
write(s, buf, position);
}
/* Quicktime music support */
void MidiDriver::midiInitQuicktime()
{
#ifdef __APPLE__CW
ComponentResult qtErr = noErr;
qtNoteAllocator = NULL;
for (int i = 0; i < 15; i++)
qtNoteChannel[i] = NULL;
qtNoteAllocator = OpenDefaultComponent(kNoteAllocatorComponentType, 0);
if (qtNoteAllocator == NULL)
goto bail;
simpleNoteRequest.info.flags = 0;
*(short *)(&simpleNoteRequest.info.polyphony) = EndianS16_NtoB(15); // simultaneous tones
*(Fixed *) (&simpleNoteRequest.info.typicalPolyphony) =
EndianU32_NtoB(0x00010000);
qtErr = NAStuffToneDescription(qtNoteAllocator, 1, &simpleNoteRequest.tone);
if (qtErr != noErr)
goto bail;
for (int i = 0; i < 15; i++) {
qtErr =
NANewNoteChannel(qtNoteAllocator, &simpleNoteRequest,
&(qtNoteChannel[i]));
if ((qtErr != noErr) || (qtNoteChannel == NULL))
goto bail;
}
return;
bail:
fprintf(stderr, "Init QT failed %x %x %d\n", qtNoteAllocator, qtNoteChannel,
qtErr);
for (int i = 0; i < 15; i++) {
if (qtNoteChannel[i] != NULL)
NADisposeNoteChannel(qtNoteAllocator, qtNoteChannel[i]);
}
if (qtNoteAllocator != NULL)
CloseComponent(qtNoteAllocator);
#endif
}
void MidiDriver::MidiOutQuicktime(void *a, int b)
{
#ifdef __APPLE__CW
MusicMIDIPacket midPacket;
unsigned char *midiCmd = midPacket.data;
midPacket.length = 3;
midiCmd[3] = (b & 0xFF000000) >> 24;
midiCmd[2] = (b & 0x00FF0000) >> 16;
midiCmd[1] = (b & 0x0000FF00) >> 8;
midiCmd[0] = b;
unsigned char chanID = midiCmd[0] & 0x0F;
switch (midiCmd[0] & 0xF0) {
case 0x80: // Note off
NAPlayNote(qtNoteAllocator, qtNoteChannel[chanID], midiCmd[1], 0);
break;
case 0x90: // Note on
NAPlayNote(qtNoteAllocator, qtNoteChannel[chanID], midiCmd[1],
midiCmd[2]);
break;
case 0xB0: // Effect
switch (midiCmd[1]) {
case 0x01: // Modulation
NASetController(qtNoteAllocator, qtNoteChannel[chanID],
kControllerModulationWheel, midiCmd[2] << 8);
break;
case 0x07: // Volume
NASetController(qtNoteAllocator, qtNoteChannel[chanID],
kControllerVolume, midiCmd[2] * 300);
break;
case 0x0A: // Pan
NASetController(qtNoteAllocator, qtNoteChannel[chanID], kControllerPan,
(midiCmd[2] << 1) + 0xFF);
break;
case 0x40: // Sustain on/off
NASetController(qtNoteAllocator, qtNoteChannel[chanID],
kControllerSustain, midiCmd[2]);
break;
case 0x5b: // ext effect depth
NASetController(qtNoteAllocator, qtNoteChannel[chanID],
kControllerReverb, midiCmd[2] << 8);
break;
case 0x5d: // chorus depth
NASetController(qtNoteAllocator, qtNoteChannel[chanID],
kControllerChorus, midiCmd[2] << 8);
break;
case 0x7b: // mode message all notes off
for (int i = 0; i < 128; i++)
NAPlayNote(qtNoteAllocator, qtNoteChannel[chanID], i, 0);
break;
default:
fprintf(stderr, "Unknown MIDI effect: %08x\n", b);
break;
}
break;
case 0xC0: // Program change
NASetInstrumentNumber(qtNoteAllocator, qtNoteChannel[chanID], midiCmd[1]);
break;
case 0xE0:{ // Pitch bend
long theBend =
((((long)midiCmd[1] + (long)(midiCmd[2] << 8))) - 0x4000) / 4;
NASetController(qtNoteAllocator, qtNoteChannel[chanID],
kControllerPitchBend, theBend);
}
break;
default:
fprintf(stderr, "Unknown Command: %08x\n", b);
NASendMIDI(qtNoteAllocator, qtNoteChannel[chanID], &midPacket);
break;
}
#endif
}
/*********** MorphOS */
void MidiDriver::MidiOutMorphOS(void *a, int b)
{
#ifdef __MORPHOS__
if (ScummMidiRequest) {
ULONG midi_data = b; // you never know about an int's size ;-)
ScummMidiRequest->amr_Std.io_Command = CMD_WRITE;
ScummMidiRequest->amr_Std.io_Data = &midi_data;
ScummMidiRequest->amr_Std.io_Length = 4;
DoIO((struct IORequest *)ScummMidiRequest);
}
#endif
}
void MidiDriver::midiInitNull()
{
warning
("Music not enabled - MIDI support selected with no MIDI driver available. Try Adlib");
}
#endif
- Previous message: [Scummvm-cvs-logs] CVS: scummvm gameDetector.cpp,1.9,1.10 gameDetector.h,1.6,1.7 main.cpp,1.2,1.3 resource.cpp,1.66,1.67 scumm.h,1.116,1.117 scummvm.cpp,1.107,1.108 scummvm.dsp,1.35,1.36 sdl.cpp,1.88,1.89 sound.cpp,1.39,1.40 sound.h,1.14,1.15 system.h,1.3,1.4
- Next message: [Scummvm-cvs-logs] CVS: scummvm/simon simon.h,1.3,1.4 midi.cpp,1.4,1.5
- Messages sorted by:
[ date ]
[ thread ]
[ subject ]
[ author ]
More information about the Scummvm-git-logs
mailing list