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authorJerome Pasion <jerome.pasion@nokia.com>2011-03-09 16:37:37 (GMT)
committerJerome Pasion <jerome.pasion@nokia.com>2011-03-09 16:37:37 (GMT)
commit421a9648767f8de54cf2b9460aaf15d754f5dccd (patch)
treeb4b533269069bc3245b3be21869e6789a00de006 /demos/mobile/quickhit/ga_src/GEInterfaces.cpp
parent19a485bd205690561b91d6bdf4c2e5310511d075 (diff)
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Adding quickhit and guitartuner mobile demos.
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <memory.h>
+#include "GEInterfaces.h"
+
+
+using namespace GE;
+
+/**
+ * CAudioSource
+ * common functionality
+ *
+ */
+IAudioSource::IAudioSource() {
+ m_next = 0;
+};
+
+IAudioSource::~IAudioSource() {
+
+
+};
+
+/**
+ * CAudioMixer
+ *
+ */
+CAudioMixer::CAudioMixer() {
+ m_sourceList = 0;
+ m_mixingBuffer = 0;
+ m_mixingBufferLength = 0;
+ m_fixedGeneralVolume = 4096;
+};
+
+
+CAudioMixer::~CAudioMixer() {
+ destroyList();
+ if (m_mixingBuffer) {
+ delete [] m_mixingBuffer;
+ m_mixingBuffer = 0;
+ };
+};
+
+void CAudioMixer::destroyList() {
+ m_mutex.lock();
+ IAudioSource *l = m_sourceList;
+ while (l) {
+ IAudioSource *n = l->m_next;
+ delete l;
+ l = n;
+ };
+ m_sourceList = 0;
+ m_mutex.unlock();
+};
+
+
+IAudioSource* CAudioMixer::addAudioSource( IAudioSource *source ) {
+ m_mutex.lock();
+ source->m_next = 0;
+ if (m_sourceList) {
+ IAudioSource *l = m_sourceList;
+ while (l->m_next) l = l->m_next;
+ l->m_next = source;
+ } else m_sourceList = source;
+ m_mutex.unlock();
+ return source;
+
+};
+
+
+bool CAudioMixer::removeAudioSource( IAudioSource *source ) {
+ return true;
+};
+
+void CAudioMixer::setGeneralVolume( float vol ) {
+ m_fixedGeneralVolume = (4096.0f*vol);
+};
+
+int CAudioMixer::pullAudio( AUDIO_SAMPLE_TYPE *target, int bufferLength ) {
+
+ if (!m_sourceList) return 0;
+
+ m_mutex.lock();
+
+
+ if (m_mixingBufferLength<bufferLength) {
+ if (m_mixingBuffer) delete [] m_mixingBuffer;
+ m_mixingBufferLength = bufferLength;
+ m_mixingBuffer = new AUDIO_SAMPLE_TYPE[ m_mixingBufferLength ];
+ };
+
+ memset( target, 0, sizeof( AUDIO_SAMPLE_TYPE ) * bufferLength );
+
+ AUDIO_SAMPLE_TYPE *t;
+ AUDIO_SAMPLE_TYPE *t_target;
+ AUDIO_SAMPLE_TYPE *s;
+
+ IAudioSource *prev = 0;
+ IAudioSource *l = m_sourceList;
+ while (l) {
+ IAudioSource *next = l->m_next;
+
+ // process l
+ int mixed = l->pullAudio( m_mixingBuffer, bufferLength );
+ if (mixed>0) {
+ // mix to main..
+ t = target;
+ t_target = t+mixed;
+ s = m_mixingBuffer;
+ while (t!=t_target) {
+ *t +=(((*s)*m_fixedGeneralVolume)>>12);
+ t++;
+ s++;
+ };
+ };
+
+
+
+ // autodestroy
+ if (l->canBeDestroyed() == true) { // NOTE, IS UNDER TESTING,... MIGHT CAUSE UNPREDICTABLE CRASHING WITH SOME USE CASES!!!
+ if (!prev)
+ m_sourceList = next;
+ else prev->m_next = next;
+ delete l;
+ l = 0;
+ };
+
+
+
+
+ prev = l;
+ l = next;
+ };
+ m_mutex.unlock();
+ return bufferLength;
+};
+
+
+
+