1 /*
2 * Copyright (c) 2009, The MilkyTracker Team.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * - Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * - Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * - Neither the name of the <ORGANIZATION> nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 /*
31 * AudioDriver_NULL.cpp
32 * MilkyPlay
33 *
34 * Created by Peter Barth on 29.07.05.
35 *
36 */
37
38 #include "AudioDriver_NULL.h"
39 #include "MasterMixer.h"
40
AudioDriver_NULL()41 AudioDriver_NULL::AudioDriver_NULL() :
42 numSamplesWritten(0),
43 compensateBuffer(0)
44 {
45 }
46
~AudioDriver_NULL()47 AudioDriver_NULL::~AudioDriver_NULL()
48 {
49 delete[] compensateBuffer;
50 }
51
initDevice(mp_sint32 bufferSizeInWords,mp_uint32 mixFrequency,MasterMixer * mixer)52 mp_sint32 AudioDriver_NULL::initDevice(mp_sint32 bufferSizeInWords, mp_uint32 mixFrequency, MasterMixer* mixer)
53 {
54 mp_sint32 res = AudioDriverBase::initDevice(bufferSizeInWords, mixFrequency, mixer);
55 if (res < 0)
56 return res;
57
58 numSamplesWritten = 0;
59
60 delete[] compensateBuffer;
61 compensateBuffer = new mp_sword[bufferSizeInWords];
62
63 return MP_OK;
64 }
65
stop()66 mp_sint32 AudioDriver_NULL::stop()
67 {
68 return MP_OK;
69 }
70
closeDevice()71 mp_sint32 AudioDriver_NULL::closeDevice()
72 {
73 return MP_OK;
74 }
75
start()76 mp_sint32 AudioDriver_NULL::start()
77 {
78 return MP_OK;
79 }
80
pause()81 mp_sint32 AudioDriver_NULL::pause()
82 {
83 return MP_OK;
84 }
85
resume()86 mp_sint32 AudioDriver_NULL::resume()
87 {
88 return MP_OK;
89 }
90
advance()91 void AudioDriver_NULL::advance()
92 {
93 numSamplesWritten+=bufferSize / MP_NUMCHANNELS;
94
95 if (mixer->isPlaying())
96 mixer->mixerHandler(compensateBuffer);
97 }
98
99