C++ CloseComponent函數代碼示例

void QTDR_CloseDownHandlers (void)
{
	if (gDataReader != NULL) {
		DataHCloseForRead(gDataReader);
		CloseComponent(gDataReader);
		gDataReader = NULL;
	}

	if (gDataWriter != NULL) {
		DataHCloseForWrite(gDataWriter);
		CloseComponent(gDataWriter);
		gDataWriter = NULL;
	}
	
	// dispose of the data buffer
	if (gDataBuffer != NULL)
		DisposePtr(gDataBuffer);
		
	// dispose of the routine descriptors
	if (gReadDataHCompletionUPP != NULL)
		DisposeDataHCompletionUPP(gReadDataHCompletionUPP);
		
	if (gWriteDataHCompletionUPP != NULL)
		DisposeDataHCompletionUPP(gWriteDataHCompletionUPP);
	
	gDoneTransferring = false;
	
#if TARGET_OS_WIN32
	// kill the timer that tasks the data handlers
	KillTimer(NULL, gTimerID);
#endif
}

CoreAudioOutput::~CoreAudioOutput()
{
	OSSpinLockLock(_spinlockAU);
	
	if(_au != NULL)
	{
		AudioOutputUnitStop(_au);
		AudioUnitUninitialize(_au);
#if defined(MAC_OS_X_VERSION_10_6) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
		if (IsOSXVersionSupported(10, 6, 0))
		{
			AudioComponentInstanceDispose(_au);
		}
		else
		{
			CloseComponent(_au);
		}
#else
		CloseComponent(_au);
#endif
		_au = NULL;
	}
	
	OSSpinLockUnlock(_spinlockAU);
	
	delete _buffer;
	_buffer = NULL;
	
	free(_spinlockAU);
	_spinlockAU = NULL;
}

void openMovSettingsPopup(TPropertyGroup *props, bool macBringToFront) {
#ifdef _WIN32
  if (InitializeQTML(0) != noErr) return;
#endif

  ComponentInstance ci =
      OpenDefaultComponent(StandardCompressionType, StandardCompressionSubType);

  QTAtomContainer atoms;
  QTNewAtomContainer(&atoms);

  fromPropertiesToAtoms(*props, atoms);

  ComponentResult err;

  if ((err = SCSetSettingsFromAtomContainer(ci, atoms)) != noErr) {
    CloseComponent(ci);
    ci = OpenDefaultComponent(StandardCompressionType,
                              StandardCompressionSubType);
    assert(false);
  }

  QTDisposeAtomContainer(atoms);

#ifdef MACOSX

// Install an external procedure to use a callback filter on the request
// settings dialog
// On MACOSX we need to change the dialog appearance in order to pop-up in front
// of the
// toonz main window.
/*
gProcStruct.filterProc = NewSCModalFilterUPP(QTCmpr_FilterProc);
// I don't install any hook
gProcStruct.hookProc = NULL;
gProcStruct.customName[0] = 0;
// I don't use refcon
gProcStruct.refcon = 0;

// set the current extended procs
SCSetInfo(ci, scExtendedProcsType, &gProcStruct);
*/
#endif

  err = SCRequestSequenceSettings(ci);
  // assert(err==noErr);
  QTAtomContainer atomsOut;

  if (SCGetSettingsAsAtomContainer(ci, &atomsOut) != noErr) assert(false);

  fromAtomsToProperties(atomsOut, *props);

  QTDisposeAtomContainer(atomsOut);
  CloseComponent(ci);

  // int dataSize=0, numChildren = 0, numLevels=0;
  // retrieveData(settings, kParentAtomIsContainer, dataSize, numChildren,
  // numLevels);
}

static bool
osx_output_enable(struct audio_output *ao, GError **error_r)
{
	struct osx_output *oo = (struct osx_output *)ao;

	ComponentDescription desc;
	desc.componentType = kAudioUnitType_Output;
	desc.componentSubType = oo->component_subtype;
	desc.componentManufacturer = kAudioUnitManufacturer_Apple;
	desc.componentFlags = 0;
	desc.componentFlagsMask = 0;

	Component comp = FindNextComponent(NULL, &desc);
	if (comp == 0) {
		g_set_error(error_r, osx_output_quark(), 0,
			    "Error finding OS X component");
		return false;
	}

	OSStatus status = OpenAComponent(comp, &oo->au);
	if (status != noErr) {
		g_set_error(error_r, osx_output_quark(), status,
			    "Unable to open OS X component: %s",
			    GetMacOSStatusCommentString(status));
		return false;
	}

	if (!osx_output_set_device(oo, error_r)) {
		CloseComponent(oo->au);
		return false;
	}

	AURenderCallbackStruct callback;
	callback.inputProc = osx_render;
	callback.inputProcRefCon = oo;

	ComponentResult result =
		AudioUnitSetProperty(oo->au,
				     kAudioUnitProperty_SetRenderCallback,
				     kAudioUnitScope_Input, 0,
				     &callback, sizeof(callback));
	if (result != noErr) {
		CloseComponent(oo->au);
		g_set_error(error_r, osx_output_quark(), result,
			    "unable to set callback for OS X audio unit");
		return false;
	}

	return true;
}

static int close_coreaudio(audio_output_t *ao)
{
	mpg123_coreaudio_t* ca = (mpg123_coreaudio_t*)ao->userptr;

	if (ca) {
		ca->decode_done = 1;
		while(!ca->play_done && ca->play) usleep(10000);
		
		/* No matter the error code, we want to close it (by brute force if necessary) */
		AudioConverterDispose(ca->converter);
		AudioOutputUnitStop(ca->outputUnit);
		AudioUnitUninitialize(ca->outputUnit);
		CloseComponent(ca->outputUnit);
	
	    /* Free the ring buffer */
		sfifo_close( &ca->fifo );
		
		/* Free the conversion buffer */
		if (ca->buffer) {
			free( ca->buffer );
			ca->buffer = NULL;
		}
		
	}
	
	return 0;
}

void CoreAudioDrv_PCM_Shutdown(void)
{
	OSStatus result;
	struct AudioUnitInputCallback callback;

	if (!Initialised) {
		return;
	}
	
    // stop processing the audio unit
	CoreAudioDrv_PCM_StopPlayback();
	
    // Remove the input callback
	callback.inputProc = 0;
	callback.inputProcRefCon = 0;
	result = AudioUnitSetProperty(output_audio_unit,
                                kAudioUnitProperty_SetInputCallback,
                                kAudioUnitScope_Input,
                                0,
                                &callback,
                                sizeof(callback));
	result = CloseComponent(output_audio_unit);

	pthread_mutex_destroy(&mutex);
	
	Initialised = 0;
}

    //------------------------------------------------------------------------
    bool pixel_map::save_as_qt(const char *filename) const
    {
		FSSpec						fss;
 		OSErr						err;
		
		// get file specification to application directory
		err = HGetVol(nil, &fss.vRefNum, &fss.parID);
		if (err == noErr)
		{
     		GraphicsExportComponent		ge;
  			CopyCStringToPascal(filename, fss.name);
  			// I decided to use PNG as output image file type.
  			// There are a number of other available formats.
  			// Should I check the file suffix to choose the image file format?
			err = OpenADefaultComponent(GraphicsExporterComponentType, kQTFileTypePNG, &ge);
			if (err == noErr)
			{
    			err = GraphicsExportSetInputGWorld(ge, m_pmap);
	    		if (err == noErr)
    			{
    				err = GraphicsExportSetOutputFile (ge, &fss);
    				if (err == noErr)
    				{
    					GraphicsExportDoExport(ge, nil);
    				}
    			}
    			CloseComponent(ge);
    		}
    	}
    	
        return err == noErr;
    }

/*----------------------------------------------------------------------
|    OsxAudioUnitsOutput_Destroy
+---------------------------------------------------------------------*/
static BLT_Result
OsxAudioUnitsOutput_Destroy(OsxAudioUnitsOutput* self)
{
    /* drain the queue */
    OsxAudioUnitsOutput_Drain(&ATX_BASE(self, BLT_OutputNode));

    /* stop the audio pump */
    OsxAudioUnitsOutput_Stop(&ATX_BASE_EX(self, BLT_BaseMediaNode, BLT_MediaNode));
    
    /* close the audio unit */
    if (self->audio_unit) {
        ComponentResult result;
        
        result = CloseComponent(self->audio_unit);
        if (result != noErr) {
            ATX_LOG_WARNING_1("CloseComponent failed (%d)", (int)result);
        }
    }
    
    /* destroy the queue */
    ATX_List_Destroy(self->packet_queue);
    
    /* destroy the lock */
    pthread_mutex_destroy(&self->lock);
    
    /* destruct the inherited object */
    BLT_BaseMediaNode_Destruct(&ATX_BASE(self, BLT_BaseMediaNode));

    /* free the object memory */
    ATX_FreeMemory(self);

    return BLT_SUCCESS;
}

SMACsdec::~SMACsdec()
{
	if(mDecoder != NULL)
	{
#if USE_DIRECT_ADEC
		DirectAudioCodecClose(mDecoder);
#else
		CloseComponent(mDecoder);
#endif
	}
	
	delete[] mOutputBuffer;
	delete[] mFloatBuffer;

#if	TARGET_API_MAC_OSX
	delete mThreadStateMutex;
	mThreadStateMutex = NULL;
#endif
	
#if	CaptureDataToFile
	if(mOutputFileRefNum != -1)
	{
		FSCloseFork(mOutputFileRefNum);
	}
#endif
}

QList<QByteArray> QMacPasteboardMimePict::convertFromMime(const QString &mime, QVariant variant,
                                                          QString flav)
{
    QList<QByteArray> ret;
    if (!resolveMimeQuickTimeSymbols())
        return ret;

    if (!canConvert(mime, flav))
        return ret;
    QCFType<CGImageRef> cgimage = qt_mac_createCGImageFromQImage(qvariant_cast<QImage>(variant));
    Handle pic = NewHandle(0);
    GraphicsExportComponent graphicsExporter;
    ComponentResult result = OpenADefaultComponent(GraphicsExporterComponentType,
                                                   kQTFileTypePicture, &graphicsExporter);
    if (!result) {
        unsigned long sizeWritten;
        result = ptrGraphicsExportSetInputCGImage(graphicsExporter, cgimage);
        if (!result)
            result = ptrGraphicsExportSetOutputHandle(graphicsExporter, pic);
        if (!result)
            result = ptrGraphicsExportDoExport(graphicsExporter, &sizeWritten);

        CloseComponent(graphicsExporter);
    }

    int size = GetHandleSize((Handle)pic);
    // Skip the Picture File header (512 bytes) and feed the raw data
    QByteArray ar(reinterpret_cast<char *>(*pic + 512), size - 512);
    ret.append(ar);
    DisposeHandle(pic);
    return ret;
}

static void coreaudio_free(void *data)
{
   coreaudio_t *dev = (coreaudio_t*)data;

   if (!dev)
      return;

   if (dev->dev_alive)
   {
      AudioOutputUnitStop(dev->dev);
#ifdef OSX_PPC
      CloseComponent(dev->dev);
#else
      AudioComponentInstanceDispose(dev->dev);
#endif
   }

   if (dev->buffer)
      fifo_free(dev->buffer);

   slock_free(dev->lock);
   scond_free(dev->cond);

   free(dev);
}

static void coreaudio_free(void *data)
{
   coreaudio_t *dev = (coreaudio_t*)data;

   if (!dev)
      return;

   if (dev->dev_alive)
   {
      AudioOutputUnitStop(dev->dev);
#if (defined(__MACH__) && (defined(__ppc__) || defined(__ppc64__)))
      CloseComponent(dev->dev);
#else
      AudioComponentInstanceDispose(dev->dev);
#endif
   }

   if (dev->buffer)
      fifo_free(dev->buffer);

   slock_free(dev->lock);
   scond_free(dev->cond);

   free(dev);
}

static void
osx_output_disable(struct audio_output *ao)
{
	struct osx_output *oo = (struct osx_output *)ao;

	CloseComponent(oo->au);
}

QVariant QMacPasteboardMimePict::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
{
    if(data.count() > 1)
        qWarning("QMacPasteboardMimePict: Cannot handle multiple member data");
    QVariant ret;
    if (!resolveMimeQuickTimeSymbols())
        return ret;

    if(!canConvert(mime, flav))
        return ret;
    const QByteArray &a = data.first();

    // This function expects the 512 header (just to skip it, so create the extra space for it).
    Handle pic = NewHandle(a.size() + 512);
    memcpy(*pic + 512, a.constData(), a.size());

    GraphicsImportComponent graphicsImporter;
    ComponentResult result = OpenADefaultComponent(GraphicsImporterComponentType,
                                                   kQTFileTypePicture, &graphicsImporter);
    QCFType<CGImageRef> cgImage;
    if (!result)
        result = ptrGraphicsImportSetDataHandle(graphicsImporter, pic);
    if (!result)
        result = ptrGraphicsImportCreateCGImage(graphicsImporter, &cgImage,
                                             kGraphicsImportCreateCGImageUsingCurrentSettings);
    if (!result)
        ret = QVariant(QPixmap::fromMacCGImageRef(cgImage).toImage());
    CloseComponent(graphicsImporter);
    DisposeHandle(pic);
    return ret;
}

void AUEditWindow::CloseView ()
{
	if (mEditView) {
		verify_noerr(CloseComponent(mEditView));
		mEditView = 0;
	}
}