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dmusic.c

/* IDirectMusic8 Implementation
 *
 * Copyright (C) 2003-2004 Rok Mandeljc
 *
 * 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 Library General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 */
#include "dmusic_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dmusic);

/* IDirectMusic8Impl IUnknown part: */
static HRESULT WINAPI IDirectMusic8Impl_QueryInterface (LPDIRECTMUSIC8 iface, REFIID riid, LPVOID *ppobj) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);

      if (IsEqualIID (riid, &IID_IUnknown) || 
          IsEqualIID (riid, &IID_IDirectMusic) ||
          IsEqualIID (riid, &IID_IDirectMusic2) ||
          IsEqualIID (riid, &IID_IDirectMusic8)) {
            IUnknown_AddRef(iface);
            *ppobj = This;
            return S_OK;
      }

      WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
      return E_NOINTERFACE;
}

static ULONG WINAPI IDirectMusic8Impl_AddRef (LPDIRECTMUSIC8 iface) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      ULONG refCount = InterlockedIncrement(&This->ref);

      TRACE("(%p)->(ref before=%u)\n", This, refCount - 1);

      DMUSIC_LockModule();

      return refCount;
}

static ULONG WINAPI IDirectMusic8Impl_Release (LPDIRECTMUSIC8 iface) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      ULONG refCount = InterlockedDecrement(&This->ref);

      TRACE("(%p)->(ref before=%u)\n", This, refCount + 1);

      if (!refCount) {
            HeapFree(GetProcessHeap(), 0, This);
      }

      DMUSIC_UnlockModule();
      
      return refCount;
}

/* IDirectMusic8Impl IDirectMusic part: */
static HRESULT WINAPI IDirectMusic8Impl_EnumPort(LPDIRECTMUSIC8 iface, DWORD dwIndex, LPDMUS_PORTCAPS pPortCaps) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      TRACE("(%p, %d, %p)\n", This, dwIndex, pPortCaps);
      if (NULL == pPortCaps) { return E_POINTER; }
      /* i guess the first port shown is always software synthesizer */
      if (dwIndex == 0) 
      {
            IDirectMusicSynth8* synth;
            TRACE("enumerating 'Microsoft Software Synthesizer' port\n");
            CoCreateInstance (&CLSID_DirectMusicSynth, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicSynth8, (void**)&synth);
            IDirectMusicSynth8_GetPortCaps (synth, pPortCaps);
            IDirectMusicSynth8_Release (synth);
            return S_OK;
      }

/* it seems that the rest of devices are obtained thru dmusic32.EnumLegacyDevices...*sigh*...which is undocumented*/
#if 0
      int numMIDI = midiOutGetNumDevs();
      int numWAVE = waveOutGetNumDevs();
      int i;
      /* then return digital sound ports */
      for (i = 1; i <= numWAVE; i++)
      {
            TRACE("enumerating 'digital sound' ports\n");   
            if (i == dwIndex)
            {
                  DirectSoundEnumerateA((LPDSENUMCALLBACKA) register_waveport, (VOID*) pPortCaps);
                  return S_OK;      
            }
      }
      /* finally, list all *real* MIDI ports*/
      for (i = numWAVE + 1; i <= numWAVE + numMIDI; i++) 
      {
            TRACE("enumerating 'real MIDI' ports\n");       
            if (i == dwIndex)
                  FIXME("Found MIDI port, but *real* MIDI ports not supported yet\n");
      }
#endif      
      return S_FALSE;
}

static HRESULT WINAPI IDirectMusic8Impl_CreateMusicBuffer (LPDIRECTMUSIC8 iface, LPDMUS_BUFFERDESC pBufferDesc, LPDIRECTMUSICBUFFER** ppBuffer, LPUNKNOWN pUnkOuter) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      FIXME("(%p, %p, %p, %p): stub\n", This, pBufferDesc, ppBuffer, pUnkOuter);
      return S_OK;
}

static HRESULT WINAPI IDirectMusic8Impl_CreatePort (LPDIRECTMUSIC8 iface, REFCLSID rclsidPort, LPDMUS_PORTPARAMS pPortParams, LPDIRECTMUSICPORT* ppPort, LPUNKNOWN pUnkOuter) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      int i/*, j*/;
      DMUS_PORTCAPS PortCaps;
      IDirectMusicPort* pNewPort = NULL;
      HRESULT hr = E_FAIL;

      TRACE("(%p, %s, %p, %p, %p)\n", This, debugstr_dmguid(rclsidPort), pPortParams, ppPort, pUnkOuter);   
      ZeroMemory(&PortCaps, sizeof(DMUS_PORTCAPS));
      PortCaps.dwSize = sizeof(DMUS_PORTCAPS);

      for (i = 0; S_FALSE != IDirectMusic8Impl_EnumPort(iface, i, &PortCaps); i++) {                        
            if (IsEqualCLSID (rclsidPort, &PortCaps.guidPort)) {
                  hr = DMUSIC_CreateDirectMusicPortImpl(&IID_IDirectMusicPort, (LPVOID*) &pNewPort, (LPUNKNOWN) This, pPortParams, &PortCaps);
                  if (FAILED(hr)) {
                    *ppPort = (LPDIRECTMUSICPORT) NULL;
                    return hr;
                  }
                  This->nrofports++;
                  if (!This->ppPorts) This->ppPorts = HeapAlloc(GetProcessHeap(), 0, sizeof(LPDIRECTMUSICPORT) * This->nrofports);
                  else This->ppPorts = HeapReAlloc(GetProcessHeap(), 0, This->ppPorts, sizeof(LPDIRECTMUSICPORT) * This->nrofports);                  
                  This->ppPorts[This->nrofports - 1] = pNewPort;
                  *ppPort = (LPDIRECTMUSICPORT) pNewPort;
                  return S_OK;                  
            }
      }
      /* FIXME: place correct error here */
      return E_NOINTERFACE;
}

static HRESULT WINAPI IDirectMusic8Impl_EnumMasterClock (LPDIRECTMUSIC8 iface, DWORD dwIndex, LPDMUS_CLOCKINFO lpClockInfo) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      FIXME("(%p, %d, %p): stub\n", This, dwIndex, lpClockInfo);
      return S_FALSE;
}

static HRESULT WINAPI IDirectMusic8Impl_GetMasterClock (LPDIRECTMUSIC8 iface, LPGUID pguidClock, IReferenceClock** ppReferenceClock) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;

      TRACE("(%p, %p, %p)\n", This, pguidClock, ppReferenceClock);
      if (pguidClock)
            *pguidClock = This->pMasterClock->pClockInfo.guidClock;
      if(ppReferenceClock)
            *ppReferenceClock = (IReferenceClock *)This->pMasterClock;

      return S_OK;
}

static HRESULT WINAPI IDirectMusic8Impl_SetMasterClock (LPDIRECTMUSIC8 iface, REFGUID rguidClock) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      FIXME("(%p, %s): stub\n", This, debugstr_dmguid(rguidClock));
      return S_OK;
}

static HRESULT WINAPI IDirectMusic8Impl_Activate (LPDIRECTMUSIC8 iface, BOOL fEnable) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      int i;
      
      FIXME("(%p, %d): stub\n", This, fEnable);
      for (i = 0; i < This->nrofports; i++) {
            IDirectMusicPortImpl_Activate(This->ppPorts[i], fEnable);
      }
      
      return S_OK;
}

static HRESULT WINAPI IDirectMusic8Impl_GetDefaultPort (LPDIRECTMUSIC8 iface, LPGUID pguidPort) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      HKEY hkGUID;
      DWORD returnTypeGUID, sizeOfReturnBuffer = 50;
      char returnBuffer[51];
      GUID defaultPortGUID;
      WCHAR buff[51];

      TRACE("(%p, %p)\n", This, pguidPort);
      if ((RegOpenKeyExA(HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectMusic\\Defaults" , 0, KEY_READ, &hkGUID) != ERROR_SUCCESS) || 
          (RegQueryValueExA(hkGUID, "DefaultOutputPort", NULL, &returnTypeGUID, (LPBYTE)returnBuffer, &sizeOfReturnBuffer) != ERROR_SUCCESS))
      {
            WARN(": registry entry missing\n" );
            *pguidPort = CLSID_DirectMusicSynth;
            return S_OK;
      }
      /* FIXME: Check return types to ensure we're interpreting data right */
      MultiByteToWideChar(CP_ACP, 0, returnBuffer, -1, buff, sizeof(buff) / sizeof(WCHAR));
      CLSIDFromString(buff, &defaultPortGUID);
      *pguidPort = defaultPortGUID;
      
      return S_OK;
}

static HRESULT WINAPI IDirectMusic8Impl_SetDirectSound (LPDIRECTMUSIC8 iface, LPDIRECTSOUND pDirectSound, HWND hWnd) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      FIXME("(%p, %p, %p): stub\n", This, pDirectSound, hWnd);
      return S_OK;
}

static HRESULT WINAPI IDirectMusic8Impl_SetExternalMasterClock (LPDIRECTMUSIC8 iface, IReferenceClock* pClock) {
      IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
      FIXME("(%p, %p): stub\n", This, pClock);
      return S_OK;
}

static const IDirectMusic8Vtbl DirectMusic8_Vtbl = {
      IDirectMusic8Impl_QueryInterface,
      IDirectMusic8Impl_AddRef,
      IDirectMusic8Impl_Release,
      IDirectMusic8Impl_EnumPort,
      IDirectMusic8Impl_CreateMusicBuffer,
      IDirectMusic8Impl_CreatePort,
      IDirectMusic8Impl_EnumMasterClock,
      IDirectMusic8Impl_GetMasterClock,
      IDirectMusic8Impl_SetMasterClock,
      IDirectMusic8Impl_Activate,
      IDirectMusic8Impl_GetDefaultPort,
      IDirectMusic8Impl_SetDirectSound,
      IDirectMusic8Impl_SetExternalMasterClock
};

/* helper stuff */
void register_waveport (LPGUID lpGUID, LPCSTR lpszDesc, LPCSTR lpszDrvName, LPVOID lpContext) {
      LPDMUS_PORTCAPS pPortCaps = (LPDMUS_PORTCAPS)lpContext;
      
      pPortCaps->dwSize = sizeof(DMUS_PORTCAPS);
      pPortCaps->dwFlags = DMUS_PC_DLS | DMUS_PC_SOFTWARESYNTH | DMUS_PC_DIRECTSOUND | DMUS_PC_DLS2 | DMUS_PC_AUDIOPATH | DMUS_PC_WAVE;
      pPortCaps->guidPort = *lpGUID;
      pPortCaps->dwClass = DMUS_PC_OUTPUTCLASS;
      pPortCaps->dwType = DMUS_PORT_WINMM_DRIVER;
      pPortCaps->dwMemorySize = DMUS_PC_SYSTEMMEMORY;
      pPortCaps->dwMaxChannelGroups = 2;
      pPortCaps->dwMaxVoices = -1;
      pPortCaps->dwMaxAudioChannels = -1;
      pPortCaps->dwEffectFlags = DMUS_EFFECT_REVERB | DMUS_EFFECT_CHORUS | DMUS_EFFECT_DELAY;
      MultiByteToWideChar (CP_ACP, 0, lpszDesc, -1, pPortCaps->wszDescription, sizeof(pPortCaps->wszDescription)/sizeof(WCHAR));
}

/* for ClassFactory */
HRESULT WINAPI DMUSIC_CreateDirectMusicImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
      IDirectMusic8Impl *dmusic;

      TRACE("(%p,%p,%p)\n",lpcGUID, ppobj, pUnkOuter);

      dmusic = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusic8Impl));
      if (NULL == dmusic) {
            *ppobj = (LPDIRECTMUSIC8) NULL;
            return E_OUTOFMEMORY;
      }
      dmusic->lpVtbl = &DirectMusic8_Vtbl;
      dmusic->ref = 0; /* will be inited with QueryInterface */
      dmusic->pMasterClock = NULL;
      dmusic->ppPorts = NULL;
      dmusic->nrofports = 0;
      DMUSIC_CreateReferenceClockImpl (&IID_IReferenceClock, (LPVOID*)&dmusic->pMasterClock, NULL);
      
      return IDirectMusic8Impl_QueryInterface ((LPDIRECTMUSIC8)dmusic, lpcGUID, ppobj);
}

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