Blender V2.61 - r43446

AUD_ReadDevice.cpp

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00001 /*
00002  * ***** BEGIN GPL LICENSE BLOCK *****
00003  *
00004  * Copyright 2009-2011 Jörg Hermann Müller
00005  *
00006  * This file is part of AudaSpace.
00007  *
00008  * Audaspace is free software; you can redistribute it and/or modify
00009  * it under the terms of the GNU General Public License as published by
00010  * the Free Software Foundation; either version 2 of the License, or
00011  * (at your option) any later version.
00012  *
00013  * AudaSpace is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016  * GNU General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU General Public License
00019  * along with Audaspace; if not, write to the Free Software Foundation,
00020  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00021  *
00022  * ***** END GPL LICENSE BLOCK *****
00023  */
00024 
00030 #include "AUD_ReadDevice.h"
00031 #include "AUD_IReader.h"
00032 
00033 #include <cstring>
00034 
00035 AUD_ReadDevice::AUD_ReadDevice(AUD_DeviceSpecs specs) :
00036     m_playing(false)
00037 {
00038     m_specs = specs;
00039 
00040     create();
00041 }
00042 
00043 AUD_ReadDevice::AUD_ReadDevice(AUD_Specs specs) :
00044     m_playing(false)
00045 {
00046     m_specs.specs = specs;
00047     m_specs.format = AUD_FORMAT_FLOAT32;
00048 
00049     create();
00050 }
00051 
00052 AUD_ReadDevice::~AUD_ReadDevice()
00053 {
00054     destroy();
00055 }
00056 
00057 bool AUD_ReadDevice::read(data_t* buffer, int length)
00058 {
00059     if(m_playing)
00060         mix(buffer, length);
00061     else
00062         if(m_specs.format == AUD_FORMAT_U8)
00063             memset(buffer, 0x80, length * AUD_DEVICE_SAMPLE_SIZE(m_specs));
00064         else
00065             memset(buffer, 0, length * AUD_DEVICE_SAMPLE_SIZE(m_specs));
00066     return m_playing;
00067 }
00068 
00069 void AUD_ReadDevice::changeSpecs(AUD_Specs specs)
00070 {
00071     if(!AUD_COMPARE_SPECS(specs, m_specs.specs))
00072         setSpecs(specs);
00073 }
00074 
00075 void AUD_ReadDevice::playing(bool playing)
00076 {
00077     m_playing = playing;
00078 }