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windows-nt/Source/XPSP1/NT/multimedia/media/midimap/config.c

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/**********************************************************************
Copyright (c) 1992-1999 Microsoft Corporation
config.c
DESCRIPTION:
Code to configure the mapper when a device is added or deleted.
HISTORY:
02/21/93 [jimge] created.
*********************************************************************/
#include "preclude.h"
#include <windows.h>
#include <winerror.h>
#include <windowsx.h>
#include <mmsystem.h>
#include <mmreg.h>
#include <mmddk.h>
#include <regstr.h>
#include "idf.h"
#include <memory.h>
#include <ctype.h>
#include "midimap.h"
#include "debug.h"
//=========================== Globals ======================================
//
static TCHAR BCODE gszMidiMapKey[] =
REGSTR_PATH_MULTIMEDIA TEXT ("\\MIDIMap");
static TCHAR BCODE gszSchemeListKey[] =
REGSTR_PATH_PRIVATEPROPERTIES TEXT ("\\MIDI\\Schemes");
static TCHAR BCODE gsz2Keys[] =
TEXT ("%s\\%s");
static TCHAR BCODE gszMediaRsrcKey[] =
REGSTR_PATH_MEDIARESOURCES TEXT ("\\MIDI");
static TCHAR BCODE gszDriverKey[] =
REGSTR_PATH_MEDIARESOURCES TEXT ("\\MIDI\\%s");
#ifdef DEBUG
static TCHAR BCODE gszSystemINI[] = TEXT ("system.ini");
static TCHAR BCODE gszMIDIMapSect[] = TEXT ("MIDIMAP");
static TCHAR BCODE gszRunOnceValue[] = TEXT ("RunOnce");
static TCHAR BCODE gszBreakOnConfigValue[]=TEXT ("BreakOnConfig");
#endif
static TCHAR BCODE gszUseSchemeValue[] = TEXT ("UseScheme");
static TCHAR BCODE gszCurSchemeValue[] = TEXT ("CurrentScheme");
static TCHAR BCODE gszCurInstrValue[] = TEXT ("CurrentInstrument");
static TCHAR BCODE gszChannelsValue[] = TEXT ("Channels");
static TCHAR BCODE gszPortValue[] = TEXT ("Port");
static TCHAR BCODE gszDefinitionValue[] = TEXT ("Definition");
static TCHAR BCODE gszFriendlyNameValue[]= TEXT ("FriendlyName");
static TCHAR BCODE gszDescription[] = TEXT ("Description");
static TCHAR BCODE gszAutoSchemeValue[] = TEXT ("AutoScheme");
static TCHAR BCODE gszDefaultFile[] = TEXT ("<internal>");
static TCHAR BCODE gszDefaultInstr[] = TEXT ("Default");
static TCHAR BCODE gszDoRunOnce[] = TEXT ("RunDll32.exe mmsys.cpl,RunOnceSchemeInit");
static TCHAR BCODE gszSetupKey[] = TEXT ("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Setup");
static TCHAR BCODE gszMachineDir[] = TEXT ("WinDir");
static TCHAR BCODE gszConfigDir[] = TEXT ("config\\");
extern BOOL gfReconfigured;
//=========================== Prototypes ===================================
//
PRIVATE void FNLOCAL ConfigureFromToast(
void);
PRIVATE void FNLOCAL ConfigureScheme(
LPTSTR pstrScheme);
PRIVATE void FNLOCAL ConfigureInstrument(
LPTSTR pstrInstr);
PRIVATE UINT FNLOCAL AddDevice(
WORD wChannelMask,
UINT uDeviceID,
LPTSTR pstrDefinition);
#define PSIK_INVALID ((UINT)(-1))
PRIVATE PPORT FNLOCAL GetPort(
UINT uDeviceID);
PRIVATE void FNLOCAL PortAddRef(
PPORT pport);
PRIVATE void FNLOCAL PortReleaseRef(
PPORT pport);
PRIVATE PINSTRUMENT FNLOCAL GetInstrument(
LPTSTR pstrFilename,
LPTSTR pstrInstrument);
PRIVATE void FNLOCAL InstrumentAddRef(
PINSTRUMENT pinstrument);
PRIVATE void FNLOCAL InstrumentReleaseRef(
PINSTRUMENT pinstrument);
PRIVATE PINSTRUMENT FNLOCAL LoadInstrument(
LPTSTR pstrFileName,
LPTSTR pstrInstrument);
PRIVATE PINSTRUMENT FNLOCAL MakeDefInstrument(
void);
#define GDID_INVALID ((UINT)(-2))
PRIVATE BOOL FNLOCAL GetIDFDirectory(
LPTSTR pszDir,
DWORD cchDir);
PRIVATE VOID FNLOCAL ValidateChannelTypes(
VOID);
//extern UINT FAR PASCAL wmmMIDIRunOnce();
#if 1
/***************************************************************************
@doc internal
@api void | Configure | Configure the mapper.
@comm
Uses new Windowws 2000 message to winmm to get the
current preferred MIDI ID.
***************************************************************************/
BOOL FNGLOBAL Configure(DWORD fdwUpdate)
{
UINT MidiOutId;
DWORD dwFlags;
MMRESULT mmr;
gfReconfigured = TRUE;
mmr = midiOutMessage((HMIDIOUT)(UINT_PTR)MIDI_MAPPER, DRVM_MAPPER_PREFERRED_GET, (DWORD_PTR)&MidiOutId, (DWORD_PTR)&dwFlags);
if (!mmr && (MIDI_MAPPER != MidiOutId)) AddDevice(ALL_CHANNELS, MidiOutId, TEXT("\0"));
return FALSE;
}
#else
// Obsolete in Windows 2000:
/***************************************************************************
@doc internal
@api void | Configure | Configure the mapper.
@comm
Read HKCU\...\UseScheme to determine if we're loading a scheme or
instrument.
Read either HKCU\...\CurrentScheme or HKCU\...\CurrentInstrument
and call the correct configuration routine.
***************************************************************************/
BOOL FNGLOBAL Configure(
DWORD fdwUpdate)
{
HKEY hKeyMidiMap = NULL;
HKEY hKeySchemes = NULL;
LPTSTR pstrValueStr = NULL;
DWORD cbValueStr;
DWORD cbValue;
DWORD dwType;
DWORD dwUseScheme;
DWORD dwAutoScheme;
MMRESULT mmr;
MIDIOUTCAPS moc;
#ifdef DEBUG
DWORD dwBreak;
DWORD dwRunOnce;
#endif
BOOL fRanRunOnce = FALSE;
static TCHAR szConfigErr[256];
static TCHAR szConfigErrMsg[256];
DPF(2, TEXT ("--- Configure start ---"));
#ifdef DEBUG
dwBreak = (DWORD)GetPrivateProfileInt(gszMIDIMapSect, gszBreakOnConfigValue, 0, gszSystemINI);
if (dwBreak)
DebugBreak();
#endif
SET_CONFIGERR;
SET_NEEDRUNONCE;
// Rest of configuration assumes we're starting from total scratch
//
assert(NULL == gpportList);
assert(NULL == gpinstrumentList);
#ifdef DEBUG
dwRunOnce = (DWORD)GetPrivateProfileInt(gszMIDIMapSect, gszRunOnceValue, 1, gszSystemINI);
#endif
// Create List of Active MIDIOUT devices
if (!mdev_Init())
{
DPF(1, TEXT ("Could not mdev_Init"));
goto Configure_Cleanup;
}
if (ERROR_SUCCESS != RegOpenKey(HKEY_CURRENT_USER,
gszMidiMapKey,
&hKeyMidiMap))
{
DPF(1, TEXT ("Could not open MidiMap"));
goto Configure_Cleanup;
}
cbValueStr = max(CB_MAXSCHEME, CB_MAXINSTR) * sizeof(TCHAR);
if (NULL == (pstrValueStr = (LPTSTR)LocalAlloc(LPTR, (UINT)cbValueStr)))
{
DPF(1, TEXT ("No memory for pstrValueStr"));
goto Configure_Cleanup;
}
// Get Scheme Values
#if 0
cbValue = sizeof(dwUseScheme);
if (ERROR_SUCCESS != RegQueryValueEx(hKeyMidiMap,
gszUseSchemeValue,
NULL,
&dwType,
(LPSTR)&dwUseScheme,
&cbValue))
{
DPF(1, TEXT ("Missing UseScheme; assuming scheme"));
dwUseScheme = 1;
}
#else
// Windows 2000 does not support schemes.
dwUseScheme = 0;
#endif
cbValue = sizeof(dwAutoScheme);
if (ERROR_SUCCESS != RegQueryValueEx(hKeyMidiMap,
gszAutoSchemeValue,
NULL,
&dwType,
(LPSTR)&dwAutoScheme,
&cbValue))
{
DPF(1, TEXT ("Missing AutoScheme; assuming TRUE"));
dwAutoScheme = 1;
}
if (dwUseScheme)
{
// Get Scheme Name
cbValue = cbValueStr;
if (ERROR_SUCCESS != RegQueryValueEx(hKeyMidiMap,
gszCurSchemeValue,
NULL,
&dwType,
(LPSTR)pstrValueStr,
&cbValue))
{
DPF(1, TEXT ("Could not read scheme"));
// Couldn't read scheme? Let's try to get the first one
//
if (ERROR_SUCCESS == RegOpenKey(HKEY_LOCAL_MACHINE,
gszSchemeListKey,
&hKeySchemes))
{
if (ERROR_SUCCESS == RegEnumKey(hKeySchemes,
0,
pstrValueStr,
cbValueStr))
{
CLR_CONFIGERR;
DPF(1, TEXT ("Using default scheme %s"), (LPTSTR)pstrValueStr);
}
else
{
DPF(1, TEXT ("Could not enum schemes key"));
}
}
else
{
DPF(1, TEXT ("Could not open [%s]"), (LPTSTR)gszSchemeListKey);
}
}
else
{
CLR_CONFIGERR;
CLR_NEEDRUNONCE;
}
if (!IS_CONFIGERR)
{
DPF(1, TEXT ("Using scheme [%s]"), (LPTSTR)pstrValueStr);
ConfigureScheme(pstrValueStr);
}
}
else
{
// Not using scheme -- try to configure via instrument description
//
cbValue = cbValueStr;
if (ERROR_SUCCESS == RegQueryValueEx(hKeyMidiMap,
gszCurInstrValue,
NULL,
&dwType,
(LPSTR)pstrValueStr,
&cbValue))
{
CLR_CONFIGERR;
CLR_NEEDRUNONCE;
DPF(1, TEXT ("Using instrument [%s]"), (LPTSTR)pstrValueStr);
ConfigureInstrument(pstrValueStr);
// If we're autoconfigure and the device we're using isn't
// marked as an internal synth and we've added a new device,
// do the runonce in case we can find an internal synth
//
if (dwAutoScheme && ((fdwUpdate & 0xFFFF) == DRV_F_ADD))
{
//assert(gpportList->pNext == NULL);
if (gpportList == NULL)
{
DPF(0, TEXT ("Configure: gpportList = NULL"));
goto Configure_Cleanup;
}
DPF(1, TEXT ("AutoScheme && DRV_F_ADD"));
mmr = midiOutGetDevCaps(gpportList->uDeviceID,
&moc,
sizeof(moc));
if (MMSYSERR_NOERROR != mmr ||
MOD_MIDIPORT == moc.wTechnology)
{
UINT cDev;
UINT idxDev;
DPF(1, TEXT ("Bogus or internal"));
cDev = midiOutGetNumDevs();
for (idxDev = 0; idxDev < cDev; ++idxDev)
if (MMSYSERR_NOERROR == midiOutGetDevCaps(
idxDev,
&moc,
sizeof(moc)) &&
MOD_MIDIPORT != moc.wTechnology)
{
DPF(1, TEXT ("AutoConf: External or bogus port; RunOnce!"));
CLR_DONERUNONCE;
SET_NEEDRUNONCE;
break;
}
}
}
}
}
// In all cases, if we are autoscheme and there is a new driver,
// do runonce.
//
if (dwAutoScheme && mdev_NewDrivers())
{
DPF(1, TEXT ("New driver(s); force runonce."));
CLR_DONERUNONCE;
SET_NEEDRUNONCE;
}
Configure_Cleanup:
// Safe to call this even if mdev_Init() failed
//
mdev_Free();
if (IS_CONFIGERR)
{
ConfigureFromToast();
}
if (IS_NEEDRUNONCE && !IS_DONERUNONCE)
{
#ifdef DEBUG
if (dwRunOnce)
{
#endif
DPF(2, TEXT ("Configuration inconsistent -- calling RunOnce"));
// WinExec(gszDoRunOnce, 0);
SET_INRUNONCE;
wmmMIDIRunOnce();
CLR_INRUNONCE;
fRanRunOnce = TRUE;
#ifdef DEBUG
}
else
{
DPF(1, TEXT ("Debug and RunOnce==0, not executing RunOnce"));
}
#endif
SET_DONERUNONCE;
}
ValidateChannelTypes();
// Call our own midiOutGetDevCaps handler to walk the new list of
// ports and figure out what we support
//
modGetDevCaps(&moc, sizeof(moc));
DPF(2, TEXT ("--- Configure end ---"));
if (NULL != pstrValueStr)
LocalFree((HGLOBAL)pstrValueStr);
if (NULL != hKeyMidiMap)
RegCloseKey(hKeyMidiMap);
if (NULL != hKeySchemes)
RegCloseKey(hKeySchemes);
return fRanRunOnce;
}
#endif
void FNGLOBAL Unconfigure(
void)
{
PCHANNEL pchannel;
UINT idxChannel;
UINT idx2;
for (idxChannel = 0; idxChannel < MAX_CHANNELS; idxChannel++)
{
if (NULL != (pchannel = gapChannel[idxChannel]))
{
if (pchannel->pport)
{
for (idx2 = idxChannel+1; idx2 < MAX_CHANNELS; idx2++)
if (NULL != gapChannel[idx2] &&
pchannel->pport == gapChannel[idx2]->pport)
gapChannel[idx2]->pport = NULL;
PortReleaseRef(pchannel->pport);
}
if (pchannel->pinstrument)
InstrumentReleaseRef(pchannel->pinstrument);
LocalFree((HLOCAL)pchannel);
gapChannel[idxChannel] = NULL;
}
}
}
/***************************************************************************
@doc internal
@api void | ConfigureFromToast | Build a configuration to use a 1:1 mapping
of the first internal driver we can find. We use this only if the registry
is totally blown and we have no other choice.
***************************************************************************/
PRIVATE void FNLOCAL ConfigureFromToast(
void)
{
UINT WavetableMidiOutId;
UINT OtherMidiOutId;
UINT FmMidiOutId;
UINT SoftwareMidiOutId;
UINT ExternalMidiOutId;
UINT MidiOutId;
UINT cMidiOutId;
MIDIOUTCAPS moc;
DPF(1, TEXT ("ConfigureFromToast()"));
CLR_CONFIGERR;
// In case there's any partial junk leftover
Unconfigure();
//
//
//
WavetableMidiOutId = (-1);
OtherMidiOutId = (-1);
FmMidiOutId = (-1);
SoftwareMidiOutId = (-1);
ExternalMidiOutId = (-1);
cMidiOutId = midiOutGetNumDevs();
if (0 != cMidiOutId)
{
for (MidiOutId = 0; MidiOutId < cMidiOutId; MidiOutId++)
{
if (!midiOutGetDevCaps(MidiOutId, &moc, sizeof(moc)))
{
if (MOD_SWSYNTH == moc.wTechnology &&
MM_MSFT_WDMAUDIO_MIDIOUT == moc.wPid &&
MM_MICROSOFT == moc.wMid)
{
SoftwareMidiOutId = MidiOutId;
} else if (MOD_FMSYNTH == moc.wTechnology) {
FmMidiOutId = MidiOutId;
} else if (MOD_MIDIPORT == moc.wTechnology) {
ExternalMidiOutId = MidiOutId;
} else if (MOD_WAVETABLE == moc.wTechnology) {
WavetableMidiOutId = MidiOutId;
} else {
OtherMidiOutId = MidiOutId;
}
}
}
}
if ((-1) != WavetableMidiOutId) MidiOutId = WavetableMidiOutId;
else if ((-1) != SoftwareMidiOutId) MidiOutId = SoftwareMidiOutId;
else if ((-1) != OtherMidiOutId) MidiOutId = OtherMidiOutId;
else if ((-1) != FmMidiOutId) MidiOutId = FmMidiOutId;
else if ((-1) != ExternalMidiOutId) MidiOutId = ExternalMidiOutId;
else MidiOutId = (-1);
if ((-1) == MidiOutId)
{
SET_CONFIGERR;
DPF(1, TEXT (":-( Could not even find an internal device."));
return;
}
DPF(1, TEXT ("CFT: Using device %u"), MidiOutId);
if (!AddDevice(0xFFFF,
MidiOutId,
TEXT("\0")))
{
DPF(1, TEXT ("CFT: AddDevice failed!!!"));
SET_CONFIGERR;
}
}
/***************************************************************************
@doc internal
@api void | ConfigureScheme | Read configuration from registry and set up
data structures.
@parm PSTR | pstrScheme | The scheme to load.
@comm
hkeyScheme = Open key from HKLM\...\Schemes\%scheme%
Enumerate subkeys of Scheme -- each subkey is an alias
GetKey of enumeration key into pstrDevKey
GetValue of Channels= Value
hkeyAlias = Open key from HKLM\...\Midi\%pstrDevKey%
GetValue of Key=
GetValue of Port=
GetValue of File=
GetValue of Instrument=
If everything succeeded, add entry to configuration
***************************************************************************/
PRIVATE void FNLOCAL ConfigureScheme(
LPTSTR pstrScheme)
{
UINT cbKeyBuffer;
LPTSTR pstrKeyBuffer = NULL;
LPTSTR pstrAlias = NULL;
LPTSTR pstrDevKey = NULL;
LPTSTR pstrDefinition = NULL;
DWORD dwChannelMask;
DWORD dwType;
DWORD cbValue;
DWORD idxEnumKey;
LPTSTR pstrMMDevKey;
UINT uChannels;
UINT uTotalChannels = 0;
UINT uDeviceID;
BOOL fSuccess;
HKEY hkeyScheme = NULL;
HKEY hkeyAlias = NULL;
// Assume something will fail
//
SET_CONFIGERR;
cbKeyBuffer = max(sizeof(gszSchemeListKey) + 1 + CB_MAXSCHEME, sizeof(gszDriverKey) + CB_MAXALIAS);
if (NULL == (pstrKeyBuffer = (LPTSTR)LocalAlloc(LPTR, cbKeyBuffer)) ||
NULL == (pstrAlias = (LPTSTR)LocalAlloc(LPTR, CB_MAXALIAS)) ||
NULL == (pstrDevKey = (LPTSTR)LocalAlloc(LPTR, CB_MAXDEVKEY)) ||
NULL == (pstrDefinition= (LPTSTR)LocalAlloc(LPTR, CB_MAXDEFINITION)))
{
DPF(1, TEXT ("No memory to read configuration!"));
goto Configure_Cleanup;
}
wsprintf(pstrKeyBuffer, gsz2Keys, (LPTSTR)gszSchemeListKey, (LPSTR)pstrScheme);
// NOTE: RegOpenKeyEx does not exist in Chicago
//
if (ERROR_SUCCESS != RegOpenKey(HKEY_LOCAL_MACHINE,
pstrKeyBuffer,
&hkeyScheme))
{
SET_NEEDRUNONCE;
DPF(1, TEXT ("Could not open Schemes\\%s"), (LPTSTR)pstrScheme);
goto Configure_Cleanup;
}
// NOTE: RegEnumKeyEx does not exist in Chicago
//
idxEnumKey = 0;
while (ERROR_SUCCESS == RegEnumKey(hkeyScheme,
idxEnumKey++,
pstrAlias,
CB_MAXALIAS))
{
DPF(1, TEXT ("enum scheme component %lu"), idxEnumKey);
if (ERROR_SUCCESS == RegOpenKey(hkeyScheme,
pstrAlias,
&hkeyAlias))
{
cbValue = CB_MAXDEVKEY;
fSuccess = (ERROR_SUCCESS == RegQueryValue(hkeyAlias,
NULL,
pstrDevKey,
&cbValue));
if (!fSuccess)
{
DPF(1, TEXT ("Failure after hkeyAlias"));
SET_NEEDRUNONCE;
goto Configure_Cleanup;
}
DPF(2, TEXT ("hkeyAlias key=%s"), (LPTSTR)pstrDevKey);
cbValue = sizeof(dwChannelMask);
if (ERROR_SUCCESS != RegQueryValueEx(hkeyAlias,
gszChannelsValue,
NULL,
&dwType,
(LPBYTE)&dwChannelMask,
&cbValue))
{
DPF(1, TEXT ("wChannelMask undefined -- using all channels"));
dwChannelMask = 0xFFFF;
SET_NEEDRUNONCE;
}
RegCloseKey(hkeyAlias);
hkeyAlias = NULL;
if (fSuccess)
{
wsprintf(pstrKeyBuffer, gszDriverKey, (LPTSTR)pstrDevKey);
if (ERROR_SUCCESS == RegOpenKey(HKEY_LOCAL_MACHINE,
pstrKeyBuffer,
&hkeyAlias))
{
pstrMMDevKey = pstrDevKey;
while (*pstrMMDevKey && *pstrMMDevKey != TEXT ('\\'))
++pstrMMDevKey;
*pstrMMDevKey = TEXT ('\0');
DPF(1, TEXT ("pstrMMDevKey %s"), (LPTSTR)pstrDevKey);
cbValue = CB_MAXDEFINITION * sizeof (TCHAR);
if (ERROR_SUCCESS != RegQueryValueEx(hkeyAlias,
gszDefinitionValue,
NULL,
&dwType,
(LPSTR)pstrDefinition,
&cbValue))
{
DPF(1, TEXT ("pstrDefinition undefined -- using 1:1 mapping"));
*pstrDefinition = TEXT ('\0');
}
uDeviceID = mdev_GetDeviceID(pstrDevKey);
if (NO_DEVICEID != uDeviceID)
{
// Success!!!! Add the entry
//
DPF(1, TEXT ("AddDevice("));
DPF(1, TEXT (" dwChannelMask=%08lX,"), dwChannelMask);
DPF(1, TEXT (" uDeviceID=%u,"), uDeviceID);
DPF(1, TEXT (" pstrDefinition=%s)"), (LPSTR)pstrDefinition);
if (0 == (uChannels = AddDevice(
(WORD)dwChannelMask,
uDeviceID,
pstrDefinition)))
{
SET_CONFIGERR;
goto Configure_Cleanup;
}
uTotalChannels += uChannels;
}
RegCloseKey(hkeyAlias);
hkeyAlias = NULL;
}
else
{
DPF(1, TEXT ("Could not open Aliases\\%s"), (LPTSTR)pstrAlias);
}
}
}
else
{
DPF(1, TEXT ("Could not open Schemes\\%s"), (LPTSTR)pstrAlias);
}
}
// Fall-through is only path to success.
//
if (uTotalChannels)
{
CLR_CONFIGERR;
}
else
{
DPF(1, TEXT ("No channels configured; we're toast!"));
SET_NEEDRUNONCE;
}
Configure_Cleanup:
if (NULL != pstrKeyBuffer)
LocalFree((HLOCAL)pstrKeyBuffer);
if (NULL != pstrAlias)
LocalFree((HLOCAL)pstrAlias);
if (NULL != pstrDevKey)
LocalFree((HLOCAL)pstrDevKey);
if (NULL != pstrDefinition)
LocalFree((HLOCAL)pstrDefinition);
if (NULL != hkeyScheme)
RegCloseKey(hkeyScheme);
if (NULL != hkeyAlias)
RegCloseKey(hkeyAlias);
}
/***************************************************************************
@doc internal
@api void | ConfigureInstrument | Read configuration from registry and set up
data structures.
@parm PSTR | pstrInstrument | The instrument to load.
@comm
***************************************************************************/
PRIVATE void FNLOCAL ConfigureInstrument(
LPTSTR pstrInstr)
{
HKEY hKeyMediaRsrc = NULL;
LPTSTR pstrKeyBuffer = NULL;
LPTSTR pstrDevKey = NULL;
LPTSTR pstrDefinition = NULL;
#ifndef WINNT
LPTSTR pstrSrc;
LPTSTR pstrDst;
#endif // End WINNT
DWORD dwType;
DWORD cbValue;
UINT cbKeyBuffer;
UINT uDeviceID;
SET_CONFIGERR;
cbKeyBuffer = max(sizeof(gszSchemeListKey) + 1 + CB_MAXSCHEME, sizeof(gszDriverKey) + CB_MAXALIAS);
if (NULL == (pstrKeyBuffer = (LPTSTR)LocalAlloc (LPTR, cbKeyBuffer * sizeof(TCHAR))) ||
NULL == (pstrDefinition= (LPTSTR)LocalAlloc (LPTR, CB_MAXDEFINITION * sizeof(TCHAR))) ||
NULL == (pstrDevKey = (LPTSTR)LocalAlloc (LPTR, CB_MAXDEVKEY * sizeof(TCHAR))))
{
DPF(1, TEXT ("No memory to read configuration!"));
goto Configure_Cleanup;
}
#ifdef WINNT
lstrcpy (pstrDevKey, pstrInstr);
#else
pstrSrc = pstrInstr;
pstrDst = pstrDevKey;
while (*pstrSrc && *pstrSrc != TEXT ('\\'))
*pstrDst++ = *pstrSrc++;
*pstrDst = TEXT ('\0');
#endif // WINNT
wsprintf(pstrKeyBuffer, gszDriverKey, (LPTSTR)pstrInstr);
if (ERROR_SUCCESS != RegOpenKey(HKEY_LOCAL_MACHINE,
pstrKeyBuffer,
&hKeyMediaRsrc))
{
DPF(1, TEXT ("Could not open DevKey %s!"), (LPTSTR)pstrKeyBuffer);
SET_NEEDRUNONCE;
goto Configure_Cleanup;
}
cbValue = CB_MAXDEFINITION;
if (ERROR_SUCCESS != RegQueryValueEx(hKeyMediaRsrc,
gszDefinitionValue,
NULL,
&dwType,
(LPSTR)pstrDefinition,
&cbValue))
{
DPF(1, TEXT ("pstrDefinition undefined -- using 1:1 mapping"));
*pstrDefinition = TEXT ('\0');
}
uDeviceID = mdev_GetDeviceID(pstrDevKey);
if (NO_DEVICEID != uDeviceID)
{
// Success!!!! Add the entry
//
DPF(1, TEXT ("AddDevice("));
DPF(1, TEXT (" uDeviceID=%u"), uDeviceID);
DPF(1, TEXT (" pstrDefinition=%s)"), (LPTSTR)pstrDefinition);
if (0 != AddDevice(ALL_CHANNELS,
uDeviceID,
pstrDefinition))
{
CLR_CONFIGERR;
}
}
Configure_Cleanup:
if (NULL != pstrDefinition)
LocalFree((HLOCAL)pstrDefinition);
if (NULL != pstrKeyBuffer)
LocalFree((HLOCAL)pstrKeyBuffer);
if (NULL != pstrDevKey)
LocalFree((HLOCAL)pstrDevKey);
if (NULL != hKeyMediaRsrc)
RegCloseKey(hKeyMediaRsrc);
}
PRIVATE UINT FNLOCAL AddDevice(
WORD wChannelMask,
UINT uDeviceID,
LPTSTR pstrDefinition)
{
UINT uRet = 0;
WORD wChannelBit;
WORD wAddedMask = 0;
UINT idxChannel;
UINT cbDefinition;
PPORT pport = NULL;
PINSTRUMENT pinstrument = NULL;
PCHANNEL pchannel;
LPTSTR pstrFile = NULL;
LPTSTR pstrInstrument = NULL;
DPF(1, TEXT ("AddDevice: uDeviceID %u pstrDefinition %s"),
uDeviceID,
(LPTSTR)pstrDefinition);
// Parse definition
//
// pstrFile -> filename
// pstrInstrument -> instrument (empty string if none specified)
//
cbDefinition = lstrlen(pstrDefinition);
if (cbDefinition)
{
pstrFile = pstrDefinition;
if (pstrDefinition[cbDefinition-1] == '>')
{
pstrInstrument = pstrDefinition + cbDefinition - 1;
*pstrInstrument-- = TEXT ('\0');
while (pstrInstrument != pstrDefinition && *pstrInstrument != TEXT ('<'))
pstrInstrument--;
if (pstrInstrument == pstrDefinition)
{
DPF(1, TEXT ("Bogus definition [%s]"), (LPTSTR)pstrDefinition);
goto Cleanup_AddDevice;
}
*pstrInstrument++ = TEXT ('\0');
}
else
{
pstrInstrument = pstrDefinition + cbDefinition;
}
DPF(1, TEXT ("AddDevice: pstrFile [%s]"), (LPTSTR)pstrFile);
DPF(1, TEXT ("AddDevice: pstrInstrument: [%s]"), (LPTSTR)pstrInstrument);
pinstrument = GetInstrument(pstrFile, pstrInstrument);
if (NULL == pinstrument)
{
DPF(1, TEXT ("Config Err: Could not load instrument!"));
goto Cleanup_AddDevice;
}
}
else
{
DPF(1, TEXT ("Using default instrument"));
// No definition given; use default instrument
//
pinstrument = NULL;
}
// Ok, now iterate through and try to allocate structures
//
pport = GetPort(uDeviceID);
if (NULL == pport)
{
DPF(1, TEXT ("Config Err: No memory for port structure!"));
goto Cleanup_AddDevice;
}
PortAddRef(pport);
wChannelBit = 1;
for (idxChannel = 0; idxChannel < MAX_CHANNELS; idxChannel++, wChannelBit <<= 1)
{
if (wChannelMask & wChannelBit)
{
if (gapChannel[idxChannel])
{
DPF(1, TEXT ("Config Err: Attempt to overload channel!"));
uRet = 0;
goto Cleanup_AddDevice;
}
pchannel = (PCHANNEL)LocalAlloc(LPTR, sizeof(CHANNEL));
if (NULL == pchannel)
{
uRet = 0;
DPF(1, TEXT ("Config Err: LocalAlloc() failed on PCHANNEL"));
goto Cleanup_AddDevice;
}
pchannel->fwChannel = 0;
pchannel->pport = pport;
pchannel->uChannel = idxChannel; // MSG to change this???
pchannel->pinstrument = pinstrument;
pchannel->pbPatchMap = NULL;
if (pinstrument && DRUM_CHANNEL != idxChannel)
pchannel->pbPatchMap = pinstrument->pbPatchMap;
// Port owns mask of channels which are used on itself
//
pport->wChannelMask |= (1 << idxChannel);
if (!pinstrument)
pchannel->pbKeyMap = NULL;
else if (idxChannel != DRUM_CHANNEL)
pchannel->pbKeyMap = pinstrument->pbGeneralKeyMap;
else
pchannel->pbKeyMap = pinstrument->pbDrumKeyMap;
if (pinstrument)
InstrumentAddRef(pinstrument);
gapChannel[idxChannel] = pchannel;
wAddedMask |= wChannelBit;
++uRet;
}
}
Cleanup_AddDevice:
if (!uRet)
{
DPF(1, TEXT ("AddDevice: gfConfigErr set!!!!"));
// Something failed! Clean up everything we touched.
//
if (NULL != pport)
{
PortReleaseRef(pport);
if (NULL != pinstrument)
{
InstrumentAddRef(pinstrument);
wChannelBit = 1;
for (idxChannel = 0; idxChannel < MAX_CHANNELS; idxChannel++)
{
if (wAddedMask & wChannelBit)
{
InstrumentReleaseRef(pinstrument);
LocalFree((HLOCAL)gapChannel[idxChannel]);
gapChannel[idxChannel] = NULL;
}
wChannelBit <<= 1;
}
InstrumentReleaseRef(pinstrument);
}
}
}
return uRet;
}
/***************************************************************************
@doc internal
@api PPORT | GetPort | Finds the port structure associated with
the given device key and device ID, creating a blank port
structure if one is not found.
@parm UINT | uDeviceID | The device ID of the port to get
@rdesc The PPORT describing the port or NULL if there was no port
found and no memory to create a new port structure.
***************************************************************************/
PRIVATE PPORT FNLOCAL GetPort(
UINT uDeviceID)
{
PPORT pport;
for (pport = gpportList; pport; pport = pport->pNext)
if (pport->uDeviceID == uDeviceID)
break;
if (NULL == pport)
{
pport = (PPORT)LocalAlloc(LPTR, sizeof(PORT));
if (NULL != pport)
{
pport->cRef = 0;
pport->fwPort = 0;
pport->wChannelMask = 0;
pport->uDeviceID = uDeviceID;
pport->hmidi = (HMIDIOUT)NULL;
pport->pNext = gpportList;
gpportList = pport;
++gcPorts;
}
}
else
{
DPF(1, TEXT ("Out of memory trying to create pport for device ID %u"),
(UINT)uDeviceID);
}
return pport;
}
PRIVATE void FNLOCAL PortAddRef(
PPORT pport)
{
++pport->cRef;
}
PRIVATE void FNLOCAL PortReleaseRef(
PPORT pport)
{
PPORT pportPrev;
PPORT pportCurr;
assert(NULL == pport->hmidi);
if (0 == --pport->cRef)
{
pportPrev = NULL;
pportCurr = gpportList;
while (pportCurr)
{
if (pport == pportCurr)
break;
pportPrev = pportCurr;
pportCurr = pportCurr->pNext;
}
if (pportCurr)
{
if (pportPrev)
pportPrev->pNext = pport->pNext;
else
gpportList = pport->pNext;
}
LocalFree((HLOCAL)pport);
}
}
/***************************************************************************
@doc internal
@api PINSTRUMENT | GetInstrument | Called to get a pointer to an instrument
structure.
@parm PSTR | pstrFilename | Filename of IDF file to use.
@parm PSTR | pstrInstrument | Description of instrument within file to use.
@rdesc TRUE on success.
***************************************************************************/
PRIVATE PINSTRUMENT FNLOCAL GetInstrument(
LPTSTR pstrFilename,
LPTSTR pstrInstrument)
{
PINSTRUMENT pinstrument;
static WORD wMask;
// See if we already have this instrument name in our list.
// If so, no need to load another instance of it.
//
for (pinstrument = gpinstrumentList; pinstrument; pinstrument = pinstrument->pNext)
{
if ((!lstrcmpi(pinstrument->pstrInstrument, pstrInstrument)) &&
(!lstrcmpi(pinstrument->pstrFilename, pstrFilename)))
break;
}
// Instrument not already loaded? Try to load it.
//
if (NULL == pinstrument)
{
if (lstrcmpi(gszDefaultFile, pstrFilename) ||
lstrcmpi(gszDefaultInstr, pstrInstrument))
{
// Not default 1:1 mapping, try to load IDF
//
pinstrument = LoadInstrument(pstrFilename, pstrInstrument);
if (NULL == pinstrument)
pinstrument = MakeDefInstrument();
}
else
{
// Generate a dummy mapping
//
pinstrument = MakeDefInstrument();
}
}
return pinstrument;
}
PRIVATE void FNLOCAL InstrumentAddRef(
PINSTRUMENT pinstrument)
{
++pinstrument->cRef;
}
PRIVATE void FNLOCAL InstrumentReleaseRef(
PINSTRUMENT pinstrument)
{
PINSTRUMENT pinstrumentPrev;
PINSTRUMENT pinstrumentCurr;
if (0 == --pinstrument->cRef)
{
pinstrumentPrev = NULL;
pinstrumentCurr = gpinstrumentList;
while (pinstrumentCurr)
{
if (pinstrument == pinstrumentCurr)
break;
pinstrumentPrev = pinstrumentCurr;
pinstrumentCurr = pinstrumentCurr->pNext;
}
if (pinstrumentCurr)
{
if (pinstrumentPrev)
{
pinstrumentPrev->pNext = pinstrument->pNext;
}
else
{
gpinstrumentList = pinstrument->pNext;
}
}
if (pinstrument->pstrFilename)
LocalFree((HLOCAL)pinstrument->pstrFilename);
if (pinstrument->pstrInstrument)
LocalFree((HLOCAL)pinstrument->pstrInstrument);
if (pinstrument->pbPatchMap)
LocalFree((HLOCAL)pinstrument->pbPatchMap);
if (pinstrument->pbDrumKeyMap)
LocalFree((HLOCAL)pinstrument->pbDrumKeyMap);
if (pinstrument->pbGeneralKeyMap)
LocalFree((HLOCAL)pinstrument->pbGeneralKeyMap);
LocalFree((HLOCAL)pinstrument);
}
}
/***************************************************************************
@doc internal
@api PINSTRUMENT | LoadInstrument | Allocate memory for and load the
contents of an instrument description from an IDF file.
@parm PSTR | pstrFileName | File name of the IDF to read from.
@parm PSTR | pstrInstrument | Instrument name within the IDF file
to load the instrument from.
@comm Load the instrument and add it to the global list of instruments.
We use GlobalAlloc here instead of LocalAlloc since this isn't done
very often and so we don't fragment our local heap by allocating/
deallocating lots of little pieces.
@rdesc TRUE on success; else FALSE.
***************************************************************************/
PRIVATE PINSTRUMENT FNLOCAL LoadInstrument(
LPTSTR pstrFileName,
LPTSTR pstrInstrument)
{
HMMIO hmmio;
MMCKINFO chkRIFF;
MMCKINFO chkParent;
MMRESULT mmr;
LPIDFHEADER lpIDFheader;
LPIDFINSTCAPS lpIDFinstcaps;
LPIDFCHANNELINFO rglpChanInfo[MAX_CHANNELS];
LPIDFCHANNELINFO lpChanInfo;
LPIDFKEYMAP rglpIDFkeymap[MAX_CHAN_TYPES];
LPIDFPATCHMAPHDR lpIDFpatchmaphdr;
LPIDFCHANNELHDR lpIDFchanhdr;
BOOL fFound;
BOOL fSuccess;
PINSTRUMENT pinstrument = NULL;
PCHANINIT pchaninit;
UINT idx;
LPTSTR lpsz;
LPTSTR pszName = NULL;
UINT cbSize;
UINT cchSize;
LPSTR pszCHAR;
LPTSTR pszTCHAR;
LPTSTR pszID = NULL;
// Determine if the IDF has any path elements in it.
//
for (lpsz = pstrFileName; *lpsz; lpsz++)
if (TEXT ('\\') == *lpsz || TEXT ('/') == *lpsz || TEXT (':') == *lpsz)
break;
if (!*lpsz)
{
// Just a filename; precede it with path
//
cbSize = CB_MAXPATH * sizeof (TCHAR);
if (NULL == (pszName = (LPTSTR)LocalAlloc(LPTR, cbSize)))
return NULL;
if (! GetIDFDirectory(pszName, CB_MAXPATH))
lstrcpy(pszName, TEXT (".\\"));
lstrcat(pszName, pstrFileName);
lpsz = (LPTSTR)pszName;
}
else
{
lpsz = pstrFileName;
}
DPF(1, TEXT ("LoadInstrument: %s"), lpsz);
// Try to open the IDF.
//
if (NULL == (hmmio = mmioOpen(lpsz, NULL, MMIO_ALLOCBUF|MMIO_READ)))
{
DPF(1, TEXT ("LoadInstrument: Cannot open [%s]!"), (LPTSTR)pstrFileName);
goto LoadInstrument_Cleanup;
}
// Descend into the main RIFF chunk
//
chkRIFF.fccType = mmioFOURCC('I', 'D', 'F', ' ');
if (MMSYSERR_NOERROR != (mmr = mmioDescend(hmmio, &chkRIFF, NULL, MMIO_FINDRIFF)))
{
DPF(1, TEXT ("mmioDescend returned %u on RIFF chunk"), mmr);
mmioClose(hmmio, 0);
goto LoadInstrument_Cleanup;
}
// Ensure valid format and scan for the instrument the caller specified.
//
fFound = FALSE;
fSuccess = FALSE;
pinstrument = NULL;
while (!fFound)
{
chkParent.fccType = mmioFOURCC('M', 'M', 'A', 'P');
if (MMSYSERR_NOERROR != (mmr = mmioDescend(hmmio, &chkParent, &chkRIFF, MMIO_FINDLIST)))
{
DPF(1, TEXT ("mmioDescend returned %u before [%s] found."), (UINT)mmr, (LPTSTR)pstrInstrument);
mmioClose(hmmio, 0);
goto LoadInstrument_Cleanup;
}
if (NULL == (lpIDFheader = ReadHeaderChunk(hmmio, &chkParent)))
{
DPF(1, TEXT ("No header chunk!"));
}
else
{
// Copy ID single byte string to UNICODE string
//
cchSize = lstrlenA (lpIDFheader->abInstID);
cbSize = cchSize + 1 * sizeof(TCHAR);
pszID = (LPTSTR) LocalAlloc(LPTR, cbSize);
pszCHAR = (LPSTR)lpIDFheader->abInstID;
pszTCHAR = pszID;
while (0 != (*pszTCHAR++ = *pszCHAR++))
;
if (NULL == pszID)
{
mmioClose(hmmio,0);
goto LoadInstrument_Cleanup;
}
DPF(1, TEXT ("Header chunk found! [%s]"), (LPTSTR)pszID);
// NOTE: Unspecified pstrInstrument (empty string) means get
// first one
//
if ((!*pstrInstrument) || !lstrcmpi(pszID, pstrInstrument))
fFound = TRUE;
#ifdef DEBUG
if (!*pstrInstrument)
{
DPF(1, TEXT ("LoadInstrument: Asked for first; got [%s]"), (LPTSTR)pszID);
}
#endif
if (pszID)
LocalFree ((HLOCAL)pszID);
if (fFound)
{
DPF(1,TEXT ("Instrument found!"));
// Pull in the rest of the stuff we need from the IDF. Don't
// actually try to allocate the instrument structure
// until we're sure eveything is OK.
//
lpIDFinstcaps = ReadCapsChunk(hmmio, &chkParent);
lpIDFchanhdr = ReadChannelChunk(hmmio, &chkParent, (LPIDFCHANNELINFO BSTACK *)rglpChanInfo);
lpIDFpatchmaphdr = ReadPatchMapChunk(hmmio, &chkParent);
ReadKeyMapChunk(hmmio, &chkParent, (LPIDFKEYMAP BSTACK *)rglpIDFkeymap);
if (lpIDFinstcaps && lpIDFchanhdr)
{
// We read all the chunks - now construct the PINSTRUMENT
// and add it to the list.
//
pinstrument = (PINSTRUMENT)LocalAlloc(LPTR, sizeof(INSTRUMENT));
if (NULL == pinstrument)
{
DPF(1, TEXT ("[Local]Alloc failed on PINSTRUMENT!!!"));
}
else
{
pinstrument->pstrInstrument = NULL;
pinstrument->cRef = 0;
pinstrument->fdwInstrument = lpIDFchanhdr->fdwFlags;
pinstrument->dwGeneralMask = lpIDFchanhdr->dwGeneralMask;
pinstrument->dwDrumMask = lpIDFchanhdr->dwDrumMask;
pinstrument->pbPatchMap = NULL;
pinstrument->pbDrumKeyMap = NULL;
pinstrument->pbGeneralKeyMap = NULL;
pchaninit = pinstrument->rgChanInit;
for (idx = 0; idx < MAX_CHANNELS; idx++)
{
pchaninit->cbInit = 0;
pchaninit->pbInit = NULL;
pchaninit++;
}
// Save the instrument name and file name so we can identify future
// instances.
//
cbSize = lstrlen(pstrFileName)+1 * sizeof (TCHAR);
pinstrument->pstrFilename = (LPTSTR)LocalAlloc(LPTR, cbSize);
if (NULL == pinstrument->pstrFilename)
goto Instrument_Alloc_Failed;
lstrcpy(pinstrument->pstrFilename, pstrFileName);
cbSize = lstrlen(pstrInstrument)+1 * sizeof (TCHAR);
pinstrument->pstrInstrument = (LPTSTR)LocalAlloc(LPTR, cbSize);
if (NULL == pinstrument->pstrInstrument)
goto Instrument_Alloc_Failed;
lstrcpy(pinstrument->pstrInstrument, pstrInstrument);
// Alloc and save the patch and key maps, if any
//
if (NULL != lpIDFpatchmaphdr)
{
pinstrument->pbPatchMap = (PBYTE)LocalAlloc(LPTR, sizeof(lpIDFpatchmaphdr->abPatchMap));
if (NULL == pinstrument->pbPatchMap)
goto Instrument_Alloc_Failed;
hmemcpy(
pinstrument->pbPatchMap,
lpIDFpatchmaphdr->abPatchMap,
sizeof(lpIDFpatchmaphdr->abPatchMap));
}
// Alloc and copy whatever key maps were in the IDF
//
if (rglpIDFkeymap[IDX_CHAN_GEN])
{
pinstrument->pbGeneralKeyMap = (PBYTE)LocalAlloc(LPTR, sizeof(rglpIDFkeymap[IDX_CHAN_GEN]->abKeyMap));
if (NULL == pinstrument->pbGeneralKeyMap)
goto Instrument_Alloc_Failed;
hmemcpy(
pinstrument->pbGeneralKeyMap,
rglpIDFkeymap[IDX_CHAN_GEN]->abKeyMap,
sizeof(rglpIDFkeymap[IDX_CHAN_GEN]->abKeyMap));
}
if (rglpIDFkeymap[IDX_CHAN_DRUM])
{
pinstrument->pbDrumKeyMap = (PBYTE)LocalAlloc(LPTR, sizeof(rglpIDFkeymap[IDX_CHAN_DRUM]->abKeyMap));
if (NULL == pinstrument->pbDrumKeyMap)
goto Instrument_Alloc_Failed;
hmemcpy(
pinstrument->pbDrumKeyMap,
rglpIDFkeymap[IDX_CHAN_DRUM]->abKeyMap,
sizeof(rglpIDFkeymap[IDX_CHAN_DRUM]->abKeyMap));
}
// Now build the channel init structures
//
for (idx = 0; idx < MAX_CHANNELS; idx++)
{
if (NULL != (lpChanInfo = rglpChanInfo[idx]))
{
if (lpChanInfo->cbInitData & 0xFFFF0000)
{
DPF(1, TEXT ("IDF specifies init data > 64K! Ignored."));
continue;
}
pchaninit = &pinstrument->rgChanInit[idx];
if (lpChanInfo->cbInitData)
{
if (NULL == (pchaninit->pbInit = (PBYTE)
LocalAlloc(LPTR, (UINT)lpChanInfo->cbInitData)))
goto Instrument_Alloc_Failed;
hmemcpy(
pchaninit->pbInit,
lpChanInfo->abData,
(UINT)lpChanInfo->cbInitData);
pchaninit->cbInit = lpChanInfo->cbInitData;
}
}
}
}
}
Instrument_Alloc_Failed:
// Make sure we free anything the parse threw at us.
//
if (NULL != lpIDFinstcaps)
GlobalFreePtr(lpIDFinstcaps);
if (NULL != lpIDFpatchmaphdr)
GlobalFreePtr(lpIDFpatchmaphdr);
if (NULL != lpIDFchanhdr)
GlobalFreePtr(lpIDFchanhdr);
for (idx = 0; idx < MAX_CHAN_TYPES; idx++)
if (NULL != rglpIDFkeymap[idx])
GlobalFreePtr(rglpIDFkeymap[idx]);
}
}
GlobalFreePtr(lpIDFheader);
mmioAscend(hmmio, &chkParent, 0);
}
if (!fSuccess)
{
// Clean up anything we might have possibly allocated
//
}
if (pinstrument)
{
DPF(1, TEXT ("LoadInstrument success!"));
pinstrument->pNext = gpinstrumentList;
gpinstrumentList = pinstrument;
}
else
{
DPF(1, TEXT ("LoadInstrument failure."));
}
mmioAscend(hmmio, &chkRIFF, 0);
mmioClose(hmmio, 0);
LoadInstrument_Cleanup:
if (pszName)
LocalFree((HLOCAL)pszName);
return pinstrument;
}
PRIVATE PINSTRUMENT FNLOCAL MakeDefInstrument(
void)
{
PINSTRUMENT pinstrument;
PCHANINIT pchaninit;
UINT idx;
UINT cbSize;
pinstrument = (PINSTRUMENT)LocalAlloc(LPTR, sizeof(INSTRUMENT));
if (NULL == pinstrument)
{
DPF(1, TEXT ("[Local]Alloc failed on PINSTRUMENT!!!"));
return NULL;
}
pinstrument->pstrInstrument = NULL;
pinstrument->cRef = 0;
pinstrument->fdwInstrument = 0;
pinstrument->pbPatchMap = NULL;
pinstrument->pbDrumKeyMap = NULL;
pinstrument->pbGeneralKeyMap = NULL;
pchaninit = pinstrument->rgChanInit;
for (idx = 0; idx < MAX_CHANNELS; idx++, pchaninit++)
{
pchaninit->cbInit = 0;
pchaninit->pbInit = NULL;
}
// Save the instrument name and file name so we can identify future
// instances.
//
cbSize = (lstrlen(gszDefaultFile) + 1) * sizeof(TCHAR);
pinstrument->pstrFilename = (LPTSTR)LocalAlloc(LPTR, cbSize);
if (NULL == pinstrument->pstrFilename)
{
LocalFree((HLOCAL)pinstrument);
return NULL;
}
lstrcpy(pinstrument->pstrFilename, gszDefaultFile);
cbSize = (lstrlen(gszDefaultInstr) + 1) * sizeof(TCHAR);
pinstrument->pstrInstrument = (LPTSTR)LocalAlloc(LPTR, cbSize);
if (NULL == pinstrument->pstrInstrument)
{
LocalFree((HLOCAL)pinstrument->pstrFilename);
LocalFree((HLOCAL)pinstrument);
return NULL;
}
lstrcpy(pinstrument->pstrInstrument, gszDefaultInstr);
return pinstrument;
}
/***************************************************************************
@doc internal
@api BOOL | UpdateInstruments | Called to reconfigure the mapper when
control panel pokes at it.
@rdesc TRUE on success; FALSE if the request was deferred because
there are open instances.
***************************************************************************/
BOOL FNGLOBAL UpdateInstruments(
BOOL fFromCPL,
DWORD fdwUpdate)
{
if (IS_INRUNONCE)
{
DPF(1, TEXT ("Got reconfig while RunOnce going...ignored"));
return TRUE;
}
if ((fdwUpdate & 0xFFFF) == DRV_F_PROP_INSTR)
{
DPF(1, TEXT ("Reconfig from CPL or RunOnce"));
}
DPF(1, TEXT ("UpdateInstruments called."));
if (IS_DEVSOPENED)
{
SET_RECONFIGURE;
return FALSE;
}
else
{
Unconfigure();
if (Configure(fdwUpdate))
{
Unconfigure();
if (Configure(fdwUpdate))
DPF(1, TEXT ("Tried to reconfigure more than twice -- uh-oh"));
}
}
return TRUE;
}
/*+ GetIDFDirectory
*
*-=================================================================*/
PRIVATE BOOL FNLOCAL GetIDFDirectory (
LPTSTR pszDir,
DWORD cchDir)
{
HKEY hKey;
UINT cbSize;
*pszDir = 0;
cbSize = cchDir * sizeof(TCHAR);
if (!RegOpenKey (HKEY_LOCAL_MACHINE, gszSetupKey, &hKey))
{
RegQueryValueEx (hKey,
gszMachineDir,
NULL,
NULL,
(LPBYTE)pszDir,
&cbSize);
RegCloseKey (hKey);
cchDir = cbSize / sizeof(TCHAR);
if (!cchDir--)
return FALSE;
}
else if (!GetWindowsDirectory(pszDir, (UINT)cchDir))
return FALSE;
cchDir = lstrlen (pszDir);
if (pszDir[cchDir -1] != TEXT ('\\'))
pszDir[cchDir++] = TEXT ('\\');
lstrcpy (pszDir + cchDir, gszConfigDir);
return TRUE;
}
/***************************************************************************
@doc internal
@api VOID | ValidateChannelTypes | Ensure that the given channel
assignments in the registry are correct in terms of the IDF's. Make an
attempt to find a drum channel if needed; it might be on channel 16
for a hindered driver.
***************************************************************************/
PRIVATE VOID FNLOCAL DeassignChannel(
UINT uChannel)
{
UINT idx;
assert(uChannel < MAX_CHANNELS);
if (!gapChannel[uChannel])
return;
for (idx = 0; idx < MAX_CHANNELS; idx++)
{
if (gapChannel[idx])
{
if ((idx != uChannel) &&
(gapChannel[uChannel]->pport == gapChannel[idx]->pport))
{
break;
}
}
}
if (idx == MAX_CHANNELS)
PortReleaseRef(gapChannel[uChannel]->pport);
InstrumentReleaseRef(gapChannel[uChannel]->pinstrument);
LocalFree((HLOCAL)gapChannel[uChannel]);
gapChannel[uChannel] = NULL;
}
PRIVATE VOID FNLOCAL ValidateChannelTypes(
VOID)
{
UINT idxChan;
DWORD dwChanBit;
DWORD dwIDFMask;
PCHANNEL pchannel;
UINT uNewDrumChan;
PINSTRUMENT pinst;
DPF(2, TEXT (" --- ValidateChannelTypes ---"));
// First, mute any channel that doesn't match the correct channel type
//
for (idxChan = 0, dwChanBit = 1;
idxChan < MAX_CHANNELS;
++idxChan, dwChanBit <<= 1)
{
if (NULL == (pchannel = gapChannel[idxChan]))
{
DPF(2, TEXT (" Channel %u was never allocated"), idxChan);
continue;
}
if (NULL == pchannel->pinstrument)
{
DPF(2, TEXT (" Channel %u contains default instrument"), idxChan);
continue;
}
dwIDFMask = (idxChan != DRUM_CHANNEL) ?
pchannel->pinstrument->dwGeneralMask :
pchannel->pinstrument->dwDrumMask;
if (dwIDFMask & dwChanBit)
continue;
DPF(2, TEXT (" Muting channel %u"), idxChan);
pchannel->fwChannel |= CHAN_F_MUTED;
}
// Now, if the drum channel is assigned but muted, attempt to find a drum
// channel on the same instrument.
//
if (NULL == (pchannel = gapChannel[DRUM_CHANNEL]))
{
DPF(2, TEXT (" No drum channel"));
goto Validate_Cleanup;
}
if (!(pchannel->fwChannel & CHAN_F_MUTED))
{
DPF(2, TEXT (" Drum channel already valid"));
goto Validate_Cleanup;
}
pinst = pchannel->pinstrument;
assert(pinst);
dwIDFMask = pchannel->pinstrument->dwDrumMask;
for (uNewDrumChan = 0, dwChanBit = 1;
uNewDrumChan < MAX_CHANNELS;
++uNewDrumChan, dwChanBit <<= 1)
if (dwChanBit & dwIDFMask)
break;
if (uNewDrumChan != MAX_CHANNELS)
{
DPF(2, TEXT (" New drum channel %u"), uNewDrumChan);
// We've found a new drum channel; mute anything that's using it as a
// general channel
//
for (idxChan = 0; idxChan < MAX_CHANNELS; ++idxChan)
if (idxChan != DRUM_CHANNEL &&
gapChannel[idxChan] &&
gapChannel[idxChan]->pinstrument == pinst &&
gapChannel[idxChan]->uChannel == uNewDrumChan)
{
DPF(2, TEXT (" Channel %u was on new drum channel"), idxChan);
gapChannel[idxChan]->fwChannel |= CHAN_F_MUTED;
}
// Now assign it is a drum channel
//
pchannel->fwChannel &= ~CHAN_F_MUTED;
pchannel->uChannel = uNewDrumChan;
pchannel->pbPatchMap = NULL;
pchannel->pbKeyMap = pinst->pbDrumKeyMap;
}
// Now go through and deassign all muted channels. This will free
// their memory
//
Validate_Cleanup:
DPF(2, TEXT (" Validate cleanup"));
for (idxChan = 0; idxChan < MAX_CHANNELS; ++idxChan)
if (gapChannel[idxChan] &&
(gapChannel[idxChan]->fwChannel & CHAN_F_MUTED))
{
DPF(2, TEXT (" Deassign %u"), idxChan);
DeassignChannel(idxChan);
}
DPF(2, TEXT (" --- Validate End ---"));
}
Reference in a new issue Copy permalink