9bd1ba7c47
which included commits to RCS files with non-trunk default branches.
1046 lines
26 KiB
C
1046 lines
26 KiB
C
/*
|
|
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
|
|
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
|
|
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
|
|
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
|
|
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
|
|
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
|
|
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
|
|
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
|
|
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
|
|
COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
|
|
*/
|
|
|
|
|
|
#pragma off (unreferenced)
|
|
static char rcsid[] = "$Id: winmidi.c,v 1.1.1.1 2001-01-19 03:30:15 bradleyb Exp $";
|
|
#pragma on (unreferenced)
|
|
|
|
|
|
|
|
|
|
#define _WIN32
|
|
#define WIN95
|
|
#define WIN32_LEAN_AND_MEAN
|
|
|
|
#include <windows.h>
|
|
#include <windowsx.h>
|
|
#include <mmsystem.h>
|
|
#include <mmreg.h>
|
|
|
|
#include "pstypes.h"
|
|
#include "mono.h"
|
|
#include "error.h"
|
|
#include "mem.h"
|
|
#include "winapp.h"
|
|
#include "winregs.h"
|
|
|
|
|
|
#include "midifile.h"
|
|
#include "midiseq.h"
|
|
#include "winmidi.h"
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Data
|
|
// ----------------------------------------------------------------------------
|
|
|
|
BOOL WMidi_NewStream = 0;
|
|
|
|
static BOOL WMidi_initialized = FALSE;
|
|
static SEQ MSeq;
|
|
static DWORD wmidi_volume = 0x80008000;
|
|
static BOOL LoopSong = FALSE;
|
|
static BOOL MidiVolChanges = TRUE;
|
|
|
|
|
|
void wmidi_deamp_song(DWORD vol);
|
|
int wmidi_get_tech();
|
|
void CALLBACK wmidi_seq_callback(HMIDISTRM hms, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2);
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Sequencer Initialization and destruction
|
|
// ----------------------------------------------------------------------------
|
|
|
|
int wmidi_init(uint mmdev)
|
|
{
|
|
MIDIOUTCAPS midicaps;
|
|
//BYTE *hdr;
|
|
//DWORD bufsize;
|
|
//int i;
|
|
UINT ui;
|
|
|
|
memset(&MSeq, 0, sizeof(SEQ));
|
|
|
|
WMidi_initialized = TRUE;
|
|
|
|
// Initialize stream buffers
|
|
MSeq.uState = SEQ_S_NOFILE;
|
|
MSeq.lpmhFree = NULL;
|
|
MSeq.lpbAlloc = NULL;
|
|
MSeq.hmidi = NULL;
|
|
|
|
MSeq.cBuffer = 4;
|
|
MSeq.cbBuffer = 512;
|
|
|
|
if (seqAllocBuffers(&MSeq) != MMSYSERR_NOERROR)
|
|
return FALSE;
|
|
|
|
// Setup sequencer some more
|
|
ui = midiOutGetDevCaps(mmdev, &midicaps, sizeof(midicaps));
|
|
if ( ui != MMSYSERR_NOERROR) {
|
|
mprintf((1, "WMIDI:(%x) Unable to find requested device.\n", MSeq.mmrcLastErr));
|
|
return 0;
|
|
}
|
|
|
|
if ((midicaps.dwSupport & MIDICAPS_VOLUME) || (midicaps.dwSupport & MIDICAPS_LRVOLUME))
|
|
MidiVolChanges = TRUE;
|
|
else MidiVolChanges = FALSE;
|
|
|
|
MSeq.uDeviceID = mmdev;
|
|
|
|
// Now we must do a stupid Microsoft trick to determine whether we are
|
|
// using WAVE TABLE volume or OPL volume.
|
|
MSeq.uMCIDeviceID = wmidi_get_tech();
|
|
|
|
logentry("MIDI technology: %d.\n", MSeq.uMCIDeviceID);
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
void wmidi_close()
|
|
{
|
|
//MIDIHDR *hdr;
|
|
|
|
Assert(WMidi_initialized == TRUE);
|
|
|
|
seqFreeBuffers(&MSeq);
|
|
|
|
WMidi_initialized = FALSE;
|
|
}
|
|
|
|
|
|
int wmidi_get_tech()
|
|
{
|
|
HKEY hKey;
|
|
long lres;
|
|
char key[32];
|
|
char buf[256];
|
|
char *pstr;
|
|
DWORD len,type;
|
|
|
|
|
|
lres = RegOpenKeyEx(HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Multimedia\\MIDIMap",
|
|
0, KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE | KEY_EXECUTE,
|
|
&hKey);
|
|
if (lres != ERROR_SUCCESS) return 0;
|
|
|
|
len = 32;
|
|
lres = RegQueryValueEx(hKey, "CurrentInstrument", NULL, &type, key, &len);
|
|
if (lres != ERROR_SUCCESS) {
|
|
RegCloseKey(hKey);
|
|
return 0;
|
|
}
|
|
|
|
RegCloseKey(hKey);
|
|
|
|
strcpy(buf, "System\\CurrentControlSet\\control\\MediaResources\\midi\\");
|
|
strcat(buf, key);
|
|
lres = RegOpenKeyEx(HKEY_LOCAL_MACHINE, buf,
|
|
0, KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE | KEY_EXECUTE,
|
|
&hKey);
|
|
if (lres != ERROR_SUCCESS) return 0;
|
|
|
|
len =128;
|
|
lres = RegQueryValueEx(hKey, "Description", NULL, &type, buf, &len);
|
|
if (lres != ERROR_SUCCESS) {
|
|
RegCloseKey(hKey);
|
|
return 0;
|
|
}
|
|
RegCloseKey(hKey);
|
|
|
|
// Okay, look for 'wave' or 'fm' or 'opl'
|
|
pstr = strlwr(buf);
|
|
if (strstr(pstr, "wave")) return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int wmidi_support_volchange() {
|
|
return (int)MidiVolChanges;
|
|
}
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// High level midi song play/stop/pause interface
|
|
// ----------------------------------------------------------------------------
|
|
|
|
int wmidi_init_song(WMIDISONG *song)
|
|
{
|
|
DWORD bufsize;
|
|
SMF *smf;
|
|
MMRESULT mmrc;
|
|
|
|
if (MSeq.uState != SEQ_S_NOFILE) return 0;
|
|
|
|
Assert (song->data != NULL);
|
|
|
|
mmrc = seqStop(&MSeq);
|
|
if (mmrc != MMSYSERR_NOERROR)
|
|
{
|
|
mprintf((1, "WMIDI: Stop song failed.\n"));;
|
|
return 0;
|
|
}
|
|
|
|
wmidi_close_song();
|
|
|
|
if (song->looping) LoopSong = TRUE;
|
|
else LoopSong = FALSE;
|
|
|
|
if (smfOpenFile(song->data, song->length, (HSMF *)&smf) != SMF_SUCCESS) return 0;
|
|
|
|
// song is confirmed to be a MIDI v1.0 compatible file
|
|
MSeq.hSmf = smf;
|
|
MSeq.dwTimeDivision = smf->dwTimeDivision;
|
|
MSeq.tkLength = smf->tkLength;
|
|
MSeq.cTrk = smf->dwTracks;
|
|
|
|
bufsize = min(MSeq.cbBuffer, smfGetStateMaxSize());
|
|
|
|
MSeq.uState = SEQ_S_OPENED;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
int wmidi_play()
|
|
{
|
|
PREROLL preroll;
|
|
MMRESULT mmrc;
|
|
DWORD vol;
|
|
|
|
preroll.tkBase = 0;
|
|
preroll.tkEnd = MSeq.tkLength;
|
|
|
|
mprintf((1, "wmidi_play: beginning playback.\n"));
|
|
|
|
if ((mmrc = seqPreroll(&MSeq, &preroll)) != MMSYSERR_NOERROR) {
|
|
mprintf((1, "wmidi_play: preroll failed! (%x)\n", mmrc));
|
|
return 0;
|
|
}
|
|
|
|
|
|
Assert(MSeq.hmidi != NULL);
|
|
|
|
// wmidi_deamp_song(wmidi_volume);
|
|
|
|
mmrc = midiOutSetVolume((HMIDIOUT)MSeq.hmidi, wmidi_volume);
|
|
if (mmrc != MMSYSERR_NOERROR) mprintf((1, "MIDI VOL ERR: %d\n", mmrc));
|
|
midiOutGetVolume((HMIDIOUT)MSeq.hmidi, &vol);
|
|
|
|
if (seqStart(&MSeq) != MMSYSERR_NOERROR) return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
int wmidi_stop()
|
|
{
|
|
if (seqStop(&MSeq) != MMSYSERR_NOERROR) return 0;
|
|
return 1;
|
|
}
|
|
|
|
|
|
int wmidi_pause()
|
|
{
|
|
if (MSeq.uState != SEQ_S_PAUSED) {
|
|
if (seqPause(&MSeq) != MMSYSERR_NOERROR) return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int wmidi_resume()
|
|
{
|
|
if (MSeq.uState == SEQ_S_PAUSED) {
|
|
if (seqRestart(&MSeq) != MMSYSERR_NOERROR) return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
int wmidi_close_song()
|
|
{
|
|
|
|
LPMIDIHDR lpmh;
|
|
|
|
if (SEQ_S_OPENED != MSeq.uState)
|
|
return MCIERR_UNSUPPORTED_FUNCTION;
|
|
|
|
LoopSong = FALSE;
|
|
|
|
if ((HSMF)NULL != MSeq.hSmf)
|
|
{
|
|
smfCloseFile(MSeq.hSmf);
|
|
MSeq.hSmf = (HSMF)NULL;
|
|
}
|
|
|
|
/* take care of any stream buffers or MIDI resources left open by
|
|
the sequencer */
|
|
|
|
if (MSeq.hmidi) {
|
|
|
|
for (lpmh = MSeq.lpmhFree; lpmh; lpmh = lpmh->lpNext)
|
|
midiOutUnprepareHeader(MSeq.hmidi, lpmh, sizeof(MIDIHDR));
|
|
|
|
if (MSeq.lpmhPreroll)
|
|
midiOutUnprepareHeader(MSeq.hmidi, MSeq.lpmhPreroll, sizeof(MIDIHDR));
|
|
|
|
midiStreamClose(MSeq.hmidi);
|
|
MSeq.hmidi = NULL;
|
|
}
|
|
|
|
MSeq.uState = SEQ_S_NOFILE;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
static uint funky_vol_log_table [] = {
|
|
0x00000, // 0
|
|
0x0b000, // 1
|
|
0x0c000, // 2
|
|
0x0c800, // 3
|
|
0x0e000, // 4
|
|
0x0e800, // 5
|
|
0x0f000, // 6
|
|
0x0f800, // 7
|
|
0x0ffff // 8
|
|
};
|
|
|
|
|
|
|
|
int wmidi_set_volume(uint volume)
|
|
{
|
|
DWORD vol;
|
|
//int i;
|
|
MMRESULT mmrc;
|
|
|
|
|
|
Assert(volume < 128);
|
|
if (volume == 127) volume++;
|
|
|
|
volume = volume /16;
|
|
|
|
if (!volume) vol = 0;
|
|
else if (MSeq.uMCIDeviceID == 1) // WAVETABLE
|
|
vol = funky_vol_log_table[volume]|0x00ff;
|
|
else { // OPL2/OPL3 and others
|
|
vol = volume * 0x2000;
|
|
if (vol > 0) vol--;
|
|
}
|
|
|
|
vol = (vol<<16)+vol;
|
|
|
|
wmidi_volume = vol;
|
|
|
|
|
|
if (MSeq.hmidi) {
|
|
// wmidi_deamp_song(wmidi_volume);
|
|
mmrc = midiOutSetVolume((HMIDIOUT)MSeq.hmidi, wmidi_volume);
|
|
if (mmrc != MMSYSERR_NOERROR) mprintf((1, "MIDI VOL ERR: %d\n", mmrc));
|
|
midiOutGetVolume((HMIDIOUT)MSeq.hmidi, &vol);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
#define MIDI_CTRLCHANGE ((BYTE)0xB0) // + ctrlr + value
|
|
#define MIDICTRL_VOLUME ((BYTE)0x07)
|
|
|
|
|
|
void wmidi_deamp_song(DWORD vol)
|
|
{
|
|
float ptvol;
|
|
DWORD ptdvol;
|
|
DWORD dwvol, dwstatus, dwevent;
|
|
MMRESULT mmrc;
|
|
int i;
|
|
|
|
|
|
vol = vol & 0x0000ffff;
|
|
|
|
ptvol = (float)(vol)*100.0/65536.0;
|
|
ptdvol = (DWORD)(ptvol);
|
|
|
|
mprintf((0, "Deamp = %d percent.\n", ptdvol));
|
|
|
|
for (i = 0, dwstatus = MIDI_CTRLCHANGE; i < 16; i++, dwstatus++)
|
|
{
|
|
dwvol = ( 100 * ptdvol ) / 1000;
|
|
dwevent = dwstatus | ((DWORD)MIDICTRL_VOLUME << 8)
|
|
| ((DWORD)dwvol << 16);
|
|
if(( mmrc= midiOutShortMsg( (HMIDIOUT)MSeq.hmidi, dwevent ))
|
|
!= MMSYSERR_NOERROR )
|
|
{
|
|
mprintf((1, "WINMIDI::BAD MIDI VOLUME CHANGE!\n"));
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
|
|
* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
|
|
* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR
|
|
* A PARTICULAR PURPOSE.
|
|
*
|
|
* Copyright (C) 1993-1995 Microsoft Corporation. All Rights Reserved.
|
|
*
|
|
******************************************************************************/
|
|
|
|
|
|
PRIVATE void FAR PASCAL seqMIDICallback(HMIDISTRM hms, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2);
|
|
PRIVATE MMRESULT FNLOCAL XlatSMFErr(SMFRESULT smfrc);
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqAllocBuffers
|
|
*
|
|
* Allocate buffers for this instance.
|
|
*
|
|
***************************************************************************/
|
|
MMRESULT FNLOCAL seqAllocBuffers(
|
|
PSEQ pSeq)
|
|
{
|
|
DWORD dwEachBufferSize;
|
|
DWORD dwAlloc;
|
|
UINT i;
|
|
LPBYTE lpbWork;
|
|
|
|
Assert(pSeq != NULL);
|
|
|
|
pSeq->uState = SEQ_S_NOFILE;
|
|
pSeq->lpmhFree = NULL;
|
|
pSeq->lpbAlloc = NULL;
|
|
pSeq->hSmf = (HSMF)NULL;
|
|
|
|
/* First make sure we can allocate the buffers they asked for
|
|
*/
|
|
dwEachBufferSize = sizeof(MIDIHDR) + (DWORD)(pSeq->cbBuffer);
|
|
dwAlloc = dwEachBufferSize * (DWORD)(pSeq->cBuffer);
|
|
|
|
pSeq->lpbAlloc = GlobalAllocPtr(GMEM_MOVEABLE|GMEM_SHARE, dwAlloc);
|
|
if (NULL == pSeq->lpbAlloc)
|
|
return MCIERR_OUT_OF_MEMORY;
|
|
|
|
/* Initialize all MIDIHDR's and throw them into a free list
|
|
*/
|
|
pSeq->lpmhFree = NULL;
|
|
|
|
lpbWork = pSeq->lpbAlloc;
|
|
for (i=0; i < pSeq->cBuffer; i++)
|
|
{
|
|
((LPMIDIHDR)lpbWork)->lpNext = pSeq->lpmhFree;
|
|
|
|
((LPMIDIHDR)lpbWork)->lpData = lpbWork + sizeof(MIDIHDR);
|
|
((LPMIDIHDR)lpbWork)->dwBufferLength = pSeq->cbBuffer;
|
|
((LPMIDIHDR)lpbWork)->dwBytesRecorded = 0;
|
|
((LPMIDIHDR)lpbWork)->dwUser = (DWORD)(UINT)pSeq;
|
|
((LPMIDIHDR)lpbWork)->dwFlags = 0;
|
|
|
|
pSeq->lpmhFree = (LPMIDIHDR)lpbWork;
|
|
|
|
lpbWork += dwEachBufferSize;
|
|
}
|
|
|
|
return MMSYSERR_NOERROR;
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqFreeBuffers
|
|
*
|
|
* Free buffers for this instance.
|
|
*
|
|
****************************************************************************/
|
|
VOID FNLOCAL seqFreeBuffers(
|
|
PSEQ pSeq)
|
|
{
|
|
LPMIDIHDR lpmh;
|
|
|
|
Assert(pSeq != NULL);
|
|
|
|
if (NULL != pSeq->lpbAlloc)
|
|
{
|
|
lpmh = (LPMIDIHDR)pSeq->lpbAlloc;
|
|
Assert(!(lpmh->dwFlags & MHDR_PREPARED));
|
|
|
|
GlobalFreePtr(pSeq->lpbAlloc);
|
|
}
|
|
}
|
|
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqPreroll
|
|
*
|
|
* Prepares the file for playback at the given position.
|
|
*
|
|
****************************************************************************/
|
|
MMRESULT FNLOCAL seqPreroll(
|
|
PSEQ pSeq,
|
|
LPPREROLL lpPreroll)
|
|
{
|
|
SMFRESULT smfrc;
|
|
MMRESULT mmrc = MMSYSERR_NOERROR;
|
|
MIDIPROPTIMEDIV mptd;
|
|
LPMIDIHDR lpmh = NULL;
|
|
LPMIDIHDR lpmhPreroll = NULL;
|
|
DWORD cbPrerollBuffer;
|
|
UINT uDeviceID;
|
|
|
|
Assert(pSeq != NULL);
|
|
|
|
pSeq->mmrcLastErr = MMSYSERR_NOERROR;
|
|
|
|
if (pSeq->uState != SEQ_S_OPENED &&
|
|
pSeq->uState != SEQ_S_PREROLLED)
|
|
return MCIERR_UNSUPPORTED_FUNCTION;
|
|
|
|
pSeq->tkBase = lpPreroll->tkBase;
|
|
pSeq->tkEnd = lpPreroll->tkEnd;
|
|
|
|
if (pSeq->hmidi)
|
|
{
|
|
// Recollect buffers from MMSYSTEM back into free queue
|
|
//
|
|
pSeq->uState = SEQ_S_RESET;
|
|
midiOutReset(pSeq->hmidi);
|
|
|
|
while (pSeq->uBuffersInMMSYSTEM)
|
|
Sleep(0);
|
|
}
|
|
|
|
pSeq->uBuffersInMMSYSTEM = 0;
|
|
pSeq->uState = SEQ_S_PREROLLING;
|
|
|
|
//
|
|
// We've successfully opened the file and all of the tracks; now
|
|
// open the MIDI device and set the time division.
|
|
//
|
|
// NOTE: seqPreroll is equivalent to seek; device might already be open
|
|
//
|
|
if (NULL == pSeq->hmidi)
|
|
{
|
|
uDeviceID = pSeq->uDeviceID;
|
|
if ((mmrc = midiStreamOpen(&pSeq->hmidi,
|
|
&uDeviceID,
|
|
1,
|
|
(DWORD)seqMIDICallback,
|
|
0,
|
|
CALLBACK_FUNCTION)) != MMSYSERR_NOERROR)
|
|
{
|
|
pSeq->hmidi = NULL;
|
|
goto seq_Preroll_Cleanup;
|
|
}
|
|
|
|
mptd.cbStruct = sizeof(mptd);
|
|
mptd.dwTimeDiv = pSeq->dwTimeDivision;
|
|
if ((mmrc = midiStreamProperty(
|
|
(HMIDI)pSeq->hmidi,
|
|
(LPBYTE)&mptd,
|
|
MIDIPROP_SET|MIDIPROP_TIMEDIV)) != MMSYSERR_NOERROR)
|
|
{
|
|
mprintf((1, "midiStreamProperty() -> %04X\n", (WORD)mmrc));
|
|
midiStreamClose(pSeq->hmidi);
|
|
pSeq->hmidi = NULL;
|
|
mmrc = MCIERR_DEVICE_NOT_READY;
|
|
goto seq_Preroll_Cleanup;
|
|
}
|
|
}
|
|
|
|
mmrc = MMSYSERR_NOERROR;
|
|
|
|
//
|
|
// Allocate a preroll buffer. Then if we don't have enough room for
|
|
// all the preroll info, we make the buffer larger.
|
|
//
|
|
if (!pSeq->lpmhPreroll)
|
|
{
|
|
cbPrerollBuffer = 4096;
|
|
lpmhPreroll = (LPMIDIHDR)GlobalAllocPtr(GMEM_MOVEABLE|GMEM_SHARE,
|
|
cbPrerollBuffer);
|
|
}
|
|
else
|
|
{
|
|
cbPrerollBuffer = pSeq->cbPreroll;
|
|
lpmhPreroll = pSeq->lpmhPreroll;
|
|
}
|
|
|
|
lpmhPreroll->lpNext = pSeq->lpmhFree;
|
|
lpmhPreroll->lpData = (LPBYTE)lpmhPreroll + sizeof(MIDIHDR);
|
|
lpmhPreroll->dwBufferLength = cbPrerollBuffer - sizeof(MIDIHDR);
|
|
lpmhPreroll->dwBytesRecorded = 0;
|
|
lpmhPreroll->dwUser = (DWORD)(UINT)pSeq;
|
|
lpmhPreroll->dwFlags = 0;
|
|
|
|
do
|
|
{
|
|
smfrc = smfSeek(pSeq->hSmf, pSeq->tkBase, lpmhPreroll);
|
|
if( SMF_SUCCESS != smfrc )
|
|
{
|
|
if( ( SMF_NO_MEMORY != smfrc ) ||
|
|
( cbPrerollBuffer >= 32768L ) )
|
|
{
|
|
mprintf((1, "smfSeek() returned %lu\n", (DWORD)smfrc));
|
|
|
|
GlobalFreePtr(lpmhPreroll);
|
|
pSeq->lpmhPreroll = NULL;
|
|
|
|
mmrc = XlatSMFErr(smfrc);
|
|
goto seq_Preroll_Cleanup;
|
|
}
|
|
else // Try to grow buffer.
|
|
{
|
|
cbPrerollBuffer *= 2;
|
|
lpmh = (LPMIDIHDR)GlobalReAllocPtr( lpmhPreroll, cbPrerollBuffer, 0 );
|
|
if( NULL == lpmh )
|
|
{
|
|
mprintf((1,"seqPreroll - realloc failed, aborting preroll.\n"));
|
|
mmrc = MCIERR_OUT_OF_MEMORY;
|
|
goto seq_Preroll_Cleanup;
|
|
}
|
|
|
|
lpmhPreroll = lpmh;
|
|
lpmhPreroll->lpData = (LPBYTE)lpmhPreroll + sizeof(MIDIHDR);
|
|
lpmhPreroll->dwBufferLength = cbPrerollBuffer - sizeof(MIDIHDR);
|
|
|
|
pSeq->lpmhPreroll = lpmhPreroll;
|
|
pSeq->cbPreroll = cbPrerollBuffer;
|
|
}
|
|
}
|
|
} while( SMF_SUCCESS != smfrc );
|
|
|
|
if (MMSYSERR_NOERROR != (mmrc = midiOutPrepareHeader(pSeq->hmidi, lpmhPreroll, sizeof(MIDIHDR))))
|
|
{
|
|
mprintf((1, "midiOutPrepare(preroll) -> %lu!\n", (DWORD)mmrc));
|
|
|
|
mmrc = MCIERR_DEVICE_NOT_READY;
|
|
goto seq_Preroll_Cleanup;
|
|
}
|
|
|
|
++pSeq->uBuffersInMMSYSTEM;
|
|
|
|
if (MMSYSERR_NOERROR != (mmrc = midiStreamOut(pSeq->hmidi, lpmhPreroll, sizeof(MIDIHDR))))
|
|
{
|
|
mprintf((1, "midiStreamOut(preroll) -> %lu!\n", (DWORD)mmrc));
|
|
|
|
mmrc = MCIERR_DEVICE_NOT_READY;
|
|
--pSeq->uBuffersInMMSYSTEM;
|
|
goto seq_Preroll_Cleanup;
|
|
}
|
|
mprintf((1,"seqPreroll: midiStreamOut(0x%x,0x%lx,%u) returned %u.\n",pSeq->hmidi,lpmhPreroll,sizeof(MIDIHDR),mmrc));
|
|
|
|
pSeq->fdwSeq &= ~SEQ_F_EOF;
|
|
while (pSeq->lpmhFree)
|
|
{
|
|
lpmh = pSeq->lpmhFree;
|
|
pSeq->lpmhFree = lpmh->lpNext;
|
|
|
|
smfrc = smfReadEvents(pSeq->hSmf, lpmh, pSeq->tkEnd);
|
|
if (SMF_SUCCESS != smfrc && SMF_END_OF_FILE != smfrc)
|
|
{
|
|
mprintf((1, "SFP: smfReadEvents() -> %u\n", (UINT)smfrc));
|
|
mmrc = XlatSMFErr(smfrc);
|
|
goto seq_Preroll_Cleanup;
|
|
}
|
|
|
|
if (MMSYSERR_NOERROR != (mmrc = midiOutPrepareHeader(pSeq->hmidi, lpmh, sizeof(*lpmh))))
|
|
{
|
|
mprintf((1, "SFP: midiOutPrepareHeader failed\n"));
|
|
goto seq_Preroll_Cleanup;
|
|
}
|
|
|
|
if (MMSYSERR_NOERROR != (mmrc = midiStreamOut(pSeq->hmidi, lpmh, sizeof(*lpmh))))
|
|
{
|
|
mprintf((1, "SFP: midiStreamOut failed\n"));
|
|
goto seq_Preroll_Cleanup;
|
|
}
|
|
|
|
++pSeq->uBuffersInMMSYSTEM;
|
|
|
|
if (SMF_END_OF_FILE == smfrc)
|
|
{
|
|
pSeq->fdwSeq |= SEQ_F_EOF;
|
|
break;
|
|
}
|
|
}
|
|
|
|
seq_Preroll_Cleanup:
|
|
if (MMSYSERR_NOERROR != mmrc)
|
|
{
|
|
pSeq->uState = SEQ_S_OPENED;
|
|
pSeq->fdwSeq &= ~SEQ_F_WAITING;
|
|
}
|
|
else
|
|
{
|
|
pSeq->uState = SEQ_S_PREROLLED;
|
|
}
|
|
|
|
return mmrc;
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqStart
|
|
*
|
|
* Starts playback at the current position.
|
|
*
|
|
***************************************************************************/
|
|
MMRESULT FNLOCAL seqStart(
|
|
PSEQ pSeq)
|
|
{
|
|
Assert(NULL != pSeq);
|
|
|
|
if (SEQ_S_PREROLLED != pSeq->uState)
|
|
{
|
|
mprintf((1, "seqStart(): State is wrong! [%u]\n", pSeq->uState));
|
|
return MCIERR_UNSUPPORTED_FUNCTION;
|
|
}
|
|
|
|
pSeq->uState = SEQ_S_PLAYING;
|
|
|
|
return midiStreamRestart(pSeq->hmidi);
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqPause
|
|
*
|
|
***************************************************************************/
|
|
MMRESULT FNLOCAL seqPause(
|
|
PSEQ pSeq)
|
|
{
|
|
Assert(NULL != pSeq);
|
|
|
|
if (SEQ_S_PLAYING != pSeq->uState)
|
|
return MCIERR_UNSUPPORTED_FUNCTION;
|
|
|
|
pSeq->uState = SEQ_S_PAUSED;
|
|
midiStreamPause(pSeq->hmidi);
|
|
|
|
return MMSYSERR_NOERROR;
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqRestart
|
|
*
|
|
***************************************************************************/
|
|
MMRESULT FNLOCAL seqRestart(
|
|
PSEQ pSeq)
|
|
{
|
|
Assert(NULL != pSeq);
|
|
|
|
if (SEQ_S_PAUSED != pSeq->uState)
|
|
return MCIERR_UNSUPPORTED_FUNCTION;
|
|
|
|
pSeq->uState = SEQ_S_PLAYING;
|
|
midiStreamRestart(pSeq->hmidi);
|
|
|
|
return MMSYSERR_NOERROR;
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqStop
|
|
*
|
|
* Totally stops playback of an instance.
|
|
*
|
|
***************************************************************************/
|
|
MMRESULT FNLOCAL seqStop(
|
|
PSEQ pSeq)
|
|
{
|
|
Assert(NULL != pSeq);
|
|
|
|
/* Automatic success if we're already stopped
|
|
*/
|
|
if (SEQ_S_PLAYING != pSeq->uState &&
|
|
SEQ_S_PAUSED != pSeq->uState)
|
|
{
|
|
pSeq->fdwSeq &= ~SEQ_F_WAITING;
|
|
return MMSYSERR_NOERROR;
|
|
}
|
|
|
|
pSeq->uState = SEQ_S_STOPPING;
|
|
pSeq->fdwSeq |= SEQ_F_WAITING;
|
|
|
|
if (MMSYSERR_NOERROR != (pSeq->mmrcLastErr = midiStreamStop(pSeq->hmidi)))
|
|
{
|
|
mprintf((1, "midiOutStop() returned %lu in seqStop()!\n", (DWORD)pSeq->mmrcLastErr));
|
|
|
|
pSeq->fdwSeq &= ~SEQ_F_WAITING;
|
|
return MCIERR_DEVICE_NOT_READY;
|
|
}
|
|
|
|
while (pSeq->uBuffersInMMSYSTEM)
|
|
Sleep(0);
|
|
|
|
return MMSYSERR_NOERROR;
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqTime
|
|
*
|
|
***************************************************************************/
|
|
MMRESULT FNLOCAL seqTime(
|
|
PSEQ pSeq,
|
|
PTICKS pTicks)
|
|
{
|
|
MMRESULT mmr;
|
|
MMTIME mmt;
|
|
|
|
Assert(pSeq != NULL);
|
|
|
|
if (SEQ_S_PLAYING != pSeq->uState &&
|
|
SEQ_S_PAUSED != pSeq->uState &&
|
|
SEQ_S_PREROLLING != pSeq->uState &&
|
|
SEQ_S_PREROLLED != pSeq->uState &&
|
|
SEQ_S_OPENED != pSeq->uState)
|
|
{
|
|
mprintf((1, "seqTime(): State wrong! [is %u]\n", pSeq->uState));
|
|
return MCIERR_UNSUPPORTED_FUNCTION;
|
|
}
|
|
|
|
*pTicks = 0;
|
|
if (SEQ_S_OPENED != pSeq->uState)
|
|
{
|
|
*pTicks = pSeq->tkBase;
|
|
if (SEQ_S_PREROLLED != pSeq->uState)
|
|
{
|
|
mmt.wType = TIME_TICKS;
|
|
mmr = midiStreamPosition(pSeq->hmidi, &mmt, sizeof(mmt));
|
|
if (MMSYSERR_NOERROR != mmr)
|
|
{
|
|
mprintf((1, "midiStreamPosition() returned %lu\n", (DWORD)mmr));
|
|
return MCIERR_DEVICE_NOT_READY;
|
|
}
|
|
|
|
*pTicks += mmt.u.ticks;
|
|
}
|
|
}
|
|
|
|
return MMSYSERR_NOERROR;
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqMillisecsToTicks
|
|
*
|
|
* Given a millisecond offset in the output stream, returns the associated
|
|
* tick position.
|
|
*
|
|
***************************************************************************/
|
|
TICKS FNLOCAL seqMillisecsToTicks(
|
|
PSEQ pSeq,
|
|
DWORD msOffset)
|
|
{
|
|
return smfMillisecsToTicks(pSeq->hSmf, msOffset);
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqTicksToMillisecs
|
|
*
|
|
* Given a tick offset in the output stream, returns the associated
|
|
* millisecond position.
|
|
*
|
|
***************************************************************************/
|
|
DWORD FNLOCAL seqTicksToMillisecs(
|
|
PSEQ pSeq,
|
|
TICKS tkOffset)
|
|
{
|
|
return smfTicksToMillisecs(pSeq->hSmf, tkOffset);
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* seqMIDICallback
|
|
*
|
|
* Called by the system when a buffer is done
|
|
*
|
|
* dw1 - The buffer that has completed playback.
|
|
*
|
|
***************************************************************************/
|
|
|
|
PRIVATE void FAR PASCAL seqMIDICallback(HMIDISTRM hms, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2)
|
|
{
|
|
LPMIDIHDR lpmh = (LPMIDIHDR)dw1;
|
|
PSEQ pSeq;
|
|
MMRESULT mmrc;
|
|
SMFRESULT smfrc;
|
|
//DWORD vol;
|
|
|
|
if (uMsg != MOM_DONE)
|
|
return;
|
|
|
|
Assert(NULL != lpmh);
|
|
|
|
pSeq = (PSEQ)(lpmh->dwUser);
|
|
|
|
Assert(pSeq != NULL);
|
|
|
|
--pSeq->uBuffersInMMSYSTEM;
|
|
|
|
if (pSeq->uState == SEQ_S_NOFILE)
|
|
mprintf((1, "seqCallback: No file!!\n"));
|
|
|
|
if (SEQ_S_RESET == pSeq->uState)
|
|
{
|
|
// We're recollecting buffers from MMSYSTEM
|
|
//
|
|
if (lpmh != pSeq->lpmhPreroll)
|
|
{
|
|
lpmh->lpNext = pSeq->lpmhFree;
|
|
pSeq->lpmhFree = lpmh;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
if ((SEQ_S_STOPPING == pSeq->uState) || (pSeq->fdwSeq & SEQ_F_EOF))
|
|
{
|
|
/*
|
|
** Reached EOF, just put the buffer back on the free
|
|
** list
|
|
*/
|
|
if (lpmh != pSeq->lpmhPreroll)
|
|
{
|
|
lpmh->lpNext = pSeq->lpmhFree;
|
|
pSeq->lpmhFree = lpmh;
|
|
}
|
|
if (!pSeq->hmidi)
|
|
mprintf((1, "seqCallback: NULL MIDI HANDLE.\n"));
|
|
|
|
if (MMSYSERR_NOERROR != (mmrc = midiOutUnprepareHeader(pSeq->hmidi, lpmh, sizeof(*lpmh))))
|
|
{
|
|
mprintf((1, "midiOutUnprepareHeader failed in seqBufferDone! (%lu)\n", (DWORD)mmrc));
|
|
}
|
|
|
|
if (0 == pSeq->uBuffersInMMSYSTEM)
|
|
{
|
|
int stop_loop=0;
|
|
mprintf((1, "seqBufferDone: normal sequencer shutdown.\n"));
|
|
|
|
/* Totally done! Free device and notify.
|
|
*/
|
|
midiStreamClose(pSeq->hmidi);
|
|
|
|
if ((SEQ_S_STOPPING == pSeq->uState) && (pSeq->fdwSeq & SEQ_F_EOF) && LoopSong) {
|
|
stop_loop = 1;
|
|
mprintf((1, "seqMIDICallback: cancelling loop.\n"));
|
|
}
|
|
pSeq->hmidi = NULL;
|
|
pSeq->uState = SEQ_S_OPENED;
|
|
pSeq->mmrcLastErr = MMSYSERR_NOERROR;
|
|
pSeq->fdwSeq &= ~SEQ_F_WAITING;
|
|
|
|
if ((pSeq->fdwSeq & SEQ_F_EOF) && LoopSong && !stop_loop)
|
|
wmidi_play();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
** Not EOF yet; attempt to fill another buffer
|
|
*/
|
|
DWORD vol;
|
|
|
|
smfrc = smfReadEvents(pSeq->hSmf, lpmh, pSeq->tkEnd);
|
|
|
|
switch(smfrc)
|
|
{
|
|
case SMF_SUCCESS:
|
|
break;
|
|
|
|
case SMF_END_OF_FILE:
|
|
pSeq->fdwSeq |= SEQ_F_EOF;
|
|
smfrc = SMF_SUCCESS;
|
|
break;
|
|
|
|
default:
|
|
mprintf((1, "smfReadEvents returned %lu in callback!\n", (DWORD)smfrc));
|
|
pSeq->uState = SEQ_S_STOPPING;
|
|
break;
|
|
}
|
|
|
|
if (SMF_SUCCESS == smfrc)
|
|
{
|
|
++pSeq->uBuffersInMMSYSTEM;
|
|
|
|
Assert(pSeq->hmidi != NULL);
|
|
|
|
// wmidi_deamp_song(wmidi_volume);
|
|
mmrc = midiOutSetVolume((HMIDIOUT)MIDI_MAPPER, wmidi_volume);
|
|
if (mmrc != MMSYSERR_NOERROR) mprintf((1, "MIDI VOL ERR: %d\n", mmrc));
|
|
midiOutGetVolume((HMIDIOUT)MIDI_MAPPER, &vol);
|
|
|
|
mmrc = midiStreamOut(pSeq->hmidi, lpmh, sizeof(*lpmh));
|
|
WMidi_NewStream++;
|
|
if (MMSYSERR_NOERROR != mmrc)
|
|
{
|
|
mprintf((1, "seqBufferDone(): midiStreamOut() returned %lu!\n", (DWORD)mmrc));
|
|
|
|
--pSeq->uBuffersInMMSYSTEM;
|
|
pSeq->uState = SEQ_S_STOPPING;
|
|
--pSeq->uBuffersInMMSYSTEM;
|
|
pSeq->uState = SEQ_S_STOPPING;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/***************************************************************************
|
|
*
|
|
* XlatSMFErr
|
|
*
|
|
* Translates an error from the SMF layer into an appropriate MCI error.
|
|
*
|
|
***************************************************************************/
|
|
PRIVATE MMRESULT FNLOCAL XlatSMFErr(
|
|
SMFRESULT smfrc)
|
|
{
|
|
switch(smfrc)
|
|
{
|
|
case SMF_SUCCESS:
|
|
return MMSYSERR_NOERROR;
|
|
|
|
case SMF_NO_MEMORY:
|
|
return MCIERR_OUT_OF_MEMORY;
|
|
|
|
case SMF_INVALID_FILE:
|
|
case SMF_OPEN_FAILED:
|
|
case SMF_INVALID_TRACK:
|
|
return MCIERR_INVALID_FILE;
|
|
|
|
default:
|
|
return MCIERR_UNSUPPORTED_FUNCTION;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|