drivers/audio/AudioChannel.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *                                                                         *
 *   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                                                   *
 ***************************************************************************/

#include "AudioChannel.h"

namespace LinuxSampler {

    /**
     * Create real channel.
     *
     * @param BufferSize - desired audio data buffer size
     * @param Name       - arbitrary name for this channel (optional)
     */
    AudioChannel::AudioChannel(uint BufferSize, String Name, std::map<String,DeviceRuntimeParameter*> ChannelParameters) {
        this->pBuffer            = new float[BufferSize];
        this->uiBufferSize       = BufferSize;
        this->pMixChannel        = NULL;
        this->UsesExternalBuffer = false;

        if (!ChannelParameters["Name"])           ChannelParameters["Name"]           = new ParameterName(Name);
        if (!ChannelParameters["IS_MIX_CHANNEL"]) ChannelParameters["IS_MIX_CHANNEL"] = new ParameterIsMixChannel(false);
        this->mParameters = ChannelParameters;

        Clear();
    }

    /**
     * Create channel with external (already existing) audio buffer.
     *
     * @param pBuffer    - external audio buffer
     * @param BufferSIze - size of the external buffer
     * @param Name       - arbitrary name for this channel (optional)
     */
    AudioChannel::AudioChannel(float* pBuffer, uint BufferSize, String Name, std::map<String,DeviceRuntimeParameter*> ChannelParameters) {
        this->pBuffer            = pBuffer;
        this->uiBufferSize       = BufferSize;
        this->pMixChannel        = NULL;
        this->UsesExternalBuffer = true;

        if (!ChannelParameters["Name"])           ChannelParameters["Name"]           = new ParameterName(Name);
        if (!ChannelParameters["IS_MIX_CHANNEL"]) ChannelParameters["IS_MIX_CHANNEL"] = new ParameterIsMixChannel(false);

        Clear();
    }

    /**
     * Create mix channel.
     *
     * @param pMixChannel - the real channel this new mix channel refers to
     * @param Name        - arbitrary name for this channel (optional)
     */
    AudioChannel::AudioChannel(AudioChannel* pMixChannel, String Name, std::map<String,DeviceRuntimeParameter*> ChannelParameters) {
        this->pBuffer            = pMixChannel->Buffer();
        this->uiBufferSize       = pMixChannel->uiBufferSize;
        this->pMixChannel        = pMixChannel;
        this->UsesExternalBuffer = true;

        if (!ChannelParameters["Name"])                    ChannelParameters["Name"]                    = new ParameterName(Name);
        if (!ChannelParameters["IS_MIX_CHANNEL"])          ChannelParameters["IS_MIX_CHANNEL"]          = new ParameterIsMixChannel(true);
        //TODO: if (!ChannelParameters["MIX_CHANNEL_DESTINATION"]) ChannelParameters["MIX_CHANNEL_DESTINATION"] = new ParameterMixChannelDestination(dest_chan);

        Clear();
    }

    /**
     * Destructor
     */
    AudioChannel::~AudioChannel() {
        std::map<String,DeviceRuntimeParameter*>::iterator iter = mParameters.begin();
        while (iter != mParameters.end()) { delete iter->second; iter++; }
        if (!UsesExternalBuffer)          delete[] pBuffer;
    }

    std::map<String,DeviceRuntimeParameter*> AudioChannel::ChannelParameters() {
        return mParameters;
    }
}
1	schoenebeck	200	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5			* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6			* *
7			* This program is free software; you can redistribute it and/or modify *
8			* it under the terms of the GNU General Public License as published by *
9			* the Free Software Foundation; either version 2 of the License, or *
10			* (at your option) any later version. *
11			* *
12			* This program is distributed in the hope that it will be useful, *
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15			* GNU General Public License for more details. *
16			* *
17			* You should have received a copy of the GNU General Public License *
18			* along with this program; if not, write to the Free Software *
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20			* MA 02111-1307 USA *
21			***************************************************************************/
22
23			#include "AudioChannel.h"
24
25			namespace LinuxSampler {
26
27			/**
28			* Create real channel.
29			*
30			* @param BufferSize - desired audio data buffer size
31			* @param Name - arbitrary name for this channel (optional)
32			*/
33			AudioChannel::AudioChannel(uint BufferSize, String Name, std::map<String,DeviceRuntimeParameter*> ChannelParameters) {
34			this->pBuffer = new float[BufferSize];
35			this->uiBufferSize = BufferSize;
36			this->pMixChannel = NULL;
37			this->UsesExternalBuffer = false;
38
39			if (!ChannelParameters["Name"]) ChannelParameters["Name"] = new ParameterName(Name);
40			if (!ChannelParameters["IS_MIX_CHANNEL"]) ChannelParameters["IS_MIX_CHANNEL"] = new ParameterIsMixChannel(false);
41			this->mParameters = ChannelParameters;
42
43			Clear();
44			}
45
46			/**
47			* Create channel with external (already existing) audio buffer.
48			*
49			* @param pBuffer - external audio buffer
50			* @param BufferSIze - size of the external buffer
51			* @param Name - arbitrary name for this channel (optional)
52			*/
53			AudioChannel::AudioChannel(float* pBuffer, uint BufferSize, String Name, std::map<String,DeviceRuntimeParameter*> ChannelParameters) {
54			this->pBuffer = pBuffer;
55			this->uiBufferSize = BufferSize;
56			this->pMixChannel = NULL;
57			this->UsesExternalBuffer = true;
58
59			if (!ChannelParameters["Name"]) ChannelParameters["Name"] = new ParameterName(Name);
60			if (!ChannelParameters["IS_MIX_CHANNEL"]) ChannelParameters["IS_MIX_CHANNEL"] = new ParameterIsMixChannel(false);
61
62			Clear();
63			}
64
65			/**
66			* Create mix channel.
67			*
68			* @param pMixChannel - the real channel this new mix channel refers to
69			* @param Name - arbitrary name for this channel (optional)
70			*/
71			AudioChannel::AudioChannel(AudioChannel* pMixChannel, String Name, std::map<String,DeviceRuntimeParameter*> ChannelParameters) {
72			this->pBuffer = pMixChannel->Buffer();
73			this->uiBufferSize = pMixChannel->uiBufferSize;
74			this->pMixChannel = pMixChannel;
75			this->UsesExternalBuffer = true;
76
77			if (!ChannelParameters["Name"]) ChannelParameters["Name"] = new ParameterName(Name);
78			if (!ChannelParameters["IS_MIX_CHANNEL"]) ChannelParameters["IS_MIX_CHANNEL"] = new ParameterIsMixChannel(true);
79			//TODO: if (!ChannelParameters["MIX_CHANNEL_DESTINATION"]) ChannelParameters["MIX_CHANNEL_DESTINATION"] = new ParameterMixChannelDestination(dest_chan);
80
81			Clear();
82			}
83
84			/**
85			* Destructor
86			*/
87			AudioChannel::~AudioChannel() {
88			std::map<String,DeviceRuntimeParameter*>::iterator iter = mParameters.begin();
89			while (iter != mParameters.end()) { delete iter->second; iter++; }
90			if (!UsesExternalBuffer) delete[] pBuffer;
91			}
92
93			std::map<String,DeviceRuntimeParameter*> AudioChannel::ChannelParameters() {
94			return mParameters;
95			}
96			}