From 0e576348ff143c1a6d2296e27f624f886e5eb86d Mon Sep 17 00:00:00 2001
From: jpbl <jpbl>
Date: Fri, 13 Jan 2006 16:47:37 +0000
Subject: [PATCH] added the Emitter functionnality
---
src/audio/OpenAL/Context.cpp | 8 +++-
src/audio/OpenAL/Context.hpp | 2 +
src/audio/OpenAL/Emitter.cpp | 66 +++++++++++++++++++++++++++++++
src/audio/OpenAL/Emitter.hpp | 55 ++++++++++++++++++++++++++
src/audio/OpenAL/Makefile.am | 9 +++--
src/audio/OpenAL/OpenALDevice.cpp | 5 ++-
src/audio/OpenAL/OpenALLayer.cpp | 23 +++++++++++
src/audio/OpenAL/OpenALLayer.hpp | 1 +
src/audio/OpenAL/WavEmitter.cpp | 62 +++++++++++++++++++++++++++++
src/audio/OpenAL/WavEmitter.hpp | 46 +++++++++++++++++++++
src/audio/OpenAL/example04.cpp | 46 +++++++++++++++++++++
11 files changed, 318 insertions(+), 5 deletions(-)
create mode 100644 src/audio/OpenAL/Emitter.cpp
create mode 100644 src/audio/OpenAL/Emitter.hpp
create mode 100644 src/audio/OpenAL/WavEmitter.cpp
create mode 100644 src/audio/OpenAL/WavEmitter.hpp
create mode 100644 src/audio/OpenAL/example04.cpp
diff --git a/src/audio/OpenAL/Context.cpp b/src/audio/OpenAL/Context.cpp
index 189a2d7171..dd33338afc 100644
--- a/src/audio/OpenAL/Context.cpp
+++ b/src/audio/OpenAL/Context.cpp
@@ -19,5 +19,11 @@
*/
#include "Context.hpp"
-#include "NullSource.hpp"
+#include "Emitter.hpp"
+SFLAudio::Source *
+SFLAudio::Context::createSource(SFLAudio::Emitter *emitter)
+{
+ Source *source = createSource(emitter->getFormat(), emitter->getFrequency());
+ emitter->connect(source);
+}
diff --git a/src/audio/OpenAL/Context.hpp b/src/audio/OpenAL/Context.hpp
index be9d254cc3..7cf28e683b 100644
--- a/src/audio/OpenAL/Context.hpp
+++ b/src/audio/OpenAL/Context.hpp
@@ -23,6 +23,7 @@
namespace SFLAudio
{
+ class Emitter;
class Source;
class Context
@@ -34,6 +35,7 @@ namespace SFLAudio
* Create a source for the context.
*/
virtual Source *createSource(int format, int freq) = 0;
+ Source *createSource(Emitter *emitter);
};
}
diff --git a/src/audio/OpenAL/Emitter.cpp b/src/audio/OpenAL/Emitter.cpp
new file mode 100644
index 0000000000..6fb1aa262f
--- /dev/null
+++ b/src/audio/OpenAL/Emitter.cpp
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2004-2005 Savoir-Faire Linux inc.
+ * Author: Jean-Philippe Barrette-LaPierre
+ * <jean-philippe.barrette-lapierre@savoirfairelinux.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "Context.hpp"
+#include "Emitter.hpp"
+
+
+SFLAudio::Emitter::Emitter()
+ : mSource(0)
+ , mFormat(0)
+ , mFreq(0)
+{}
+
+
+SFLAudio::Emitter::Emitter(int format, int freq)
+ : mSource(0)
+ , mFormat(format)
+ , mFreq(freq)
+{}
+
+
+int
+SFLAudio::Emitter::getFrequency()
+{return mFreq;}
+
+int
+SFLAudio::Emitter::getFormat()
+{return mFormat;}
+
+void
+SFLAudio::Emitter::setFrequency(int freq)
+{mFreq = freq;}
+
+void
+SFLAudio::Emitter::setFormat(int format)
+{mFormat = format;}
+
+void
+SFLAudio::Emitter::connect(Source *source)
+{mSource = source;}
+
+void
+SFLAudio::Emitter::connect(Context *context)
+{mSource = context->createSource(this);}
+
+SFLAudio::Source *
+SFLAudio::Emitter::getSource()
+{return mSource;}
+
diff --git a/src/audio/OpenAL/Emitter.hpp b/src/audio/OpenAL/Emitter.hpp
new file mode 100644
index 0000000000..f4b9b9acdf
--- /dev/null
+++ b/src/audio/OpenAL/Emitter.hpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2004-2005 Savoir-Faire Linux inc.
+ * Author: Jean-Philippe Barrette-LaPierre
+ * <jean-philippe.barrette-lapierre@savoirfairelinux.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __SFLAUDIO_EMITTER_HPP__
+#define __SFLAUDIO_EMITTER_HPP__
+
+namespace SFLAudio
+{
+ class Context;
+ class Source;
+
+ class Emitter
+ {
+ public:
+ Emitter();
+ Emitter(int format, int freq);
+
+ int getFrequency();
+ int getFormat();
+
+ void setFrequency(int freq);
+ void setFormat(int format);
+
+ void connect(Source *source);
+ void connect(Context *context);
+ Source *getSource();
+
+ private:
+ Source *mSource;
+
+ int mFormat;
+ int mFreq;
+ };
+
+}
+
+#endif
+
diff --git a/src/audio/OpenAL/Makefile.am b/src/audio/OpenAL/Makefile.am
index 5871378bf1..45b4349f96 100644
--- a/src/audio/OpenAL/Makefile.am
+++ b/src/audio/OpenAL/Makefile.am
@@ -1,12 +1,13 @@
if MAINTENER_CODE
-noinst_PROGRAMS = example01 example02 example03
+noinst_PROGRAMS = example01 example02 example03 example04
noinst_LTLIBRARIES = libsflaudio.la
libsflaudio_la_SOURCES = \
AudioLayer.cpp AudioLayer.hpp \
AudioManagerImpl.cpp AudioManagerImpl.hpp \
- Context.hpp \
+ Context.cpp Context.hpp \
Device.cpp Device.hpp \
+ Emitter.cpp Emitter.hpp \
NullLayer.cpp NullLayer.hpp \
NullDevice.cpp NullDevice.hpp \
NullContext.cpp NullContext.hpp \
@@ -17,7 +18,8 @@ libsflaudio_la_SOURCES = \
OpenALSource.cpp OpenALSource.hpp \
PortAudioLayer.cpp PortAudioLayer.hpp \
SFLAudio.hpp \
- Source.cpp Source.hpp
+ Source.cpp Source.hpp \
+ WavEmitter.cpp WavEmitter.hpp
AM_CPPFLAGS = $(PORTAUDIO_CFLAGS) -I$(top_srcdir)/libs/portaudio/pa_common -I$(top_srcdir)/libs/
AM_CXXFLAGS = $(PORTAUDIO_CXXFLAGS) -I$(top_srcdir)/libs/
@@ -30,5 +32,6 @@ LDADD = libsflaudio.la $(PORTAUDIO_LIBS) -lopenal -lportaudio
example01_SOURCES = example01.cpp
example02_SOURCES = example02.cpp
example03_SOURCES = example03.cpp
+example04_SOURCES = example04.cpp
endif
diff --git a/src/audio/OpenAL/OpenALDevice.cpp b/src/audio/OpenAL/OpenALDevice.cpp
index 91ea6fbcf4..ef6ff8612a 100644
--- a/src/audio/OpenAL/OpenALDevice.cpp
+++ b/src/audio/OpenAL/OpenALDevice.cpp
@@ -41,7 +41,10 @@ SFLAudio::OpenALDevice::~OpenALDevice()
void
SFLAudio::OpenALDevice::unload() {
if(mDevice) {
- alcCloseDevice(mDevice);
+ if(alcCloseDevice(mDevice) == ALC_FALSE) {
+ ALenum error = alcGetError(mDevice);
+ std::cerr << "OpenAL::alcCloseDevice: " << alGetString(error) << std::endl;
+ }
mDevice = 0;
}
}
diff --git a/src/audio/OpenAL/OpenALLayer.cpp b/src/audio/OpenAL/OpenALLayer.cpp
index bc530a2af4..b6bbfdc30a 100644
--- a/src/audio/OpenAL/OpenALLayer.cpp
+++ b/src/audio/OpenAL/OpenALLayer.cpp
@@ -27,6 +27,7 @@
#include <AL/alc.h>
#define DEFAULT_DEVICE_NAME "default"
+#define DEFAULT_CAPTURE_DEVICE_NAME "default"
SFLAudio::OpenALLayer::OpenALLayer()
: AudioLayer("openal")
@@ -53,6 +54,28 @@ SFLAudio::OpenALLayer::getDevicesNames()
}
+std::list< std::string >
+SFLAudio::OpenALLayer::getCaptureDevicesNames()
+{
+ std::list< std::string > devices;
+ if (alcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT") == AL_TRUE) {
+ const ALCchar *devs = alcGetString(NULL, ALC_CAPTURE_DEVICE_SPECIFIER);
+ const ALCchar *devname = devs;
+ while(devname) {
+ devices.push_back(devname);
+ devname += sizeof(ALCchar) * (strlen(devname) + 1);
+ }
+ }
+ else {
+ devices.push_back(DEFAULT_CAPTURE_DEVICE_NAME);
+ }
+
+
+ return devices;
+
+}
+
+
SFLAudio::Device *
SFLAudio::OpenALLayer::openDevice()
{
diff --git a/src/audio/OpenAL/OpenALLayer.hpp b/src/audio/OpenAL/OpenALLayer.hpp
index 1a04b027f0..de35ab4e7c 100644
--- a/src/audio/OpenAL/OpenALLayer.hpp
+++ b/src/audio/OpenAL/OpenALLayer.hpp
@@ -31,6 +31,7 @@ namespace SFLAudio
OpenALLayer();
virtual std::list< std::string > getDevicesNames();
+ virtual std::list< std::string > getCaptureDevicesNames();
virtual Device *openDevice();
virtual Device *openDevice(const std::string &name);
};
diff --git a/src/audio/OpenAL/WavEmitter.cpp b/src/audio/OpenAL/WavEmitter.cpp
new file mode 100644
index 0000000000..9bd47b34da
--- /dev/null
+++ b/src/audio/OpenAL/WavEmitter.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2004-2005 Savoir-Faire Linux inc.
+ * Author: Jean-Philippe Barrette-LaPierre
+ * <jean-philippe.barrette-lapierre@savoirfairelinux.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <AL/alut.h>
+#include <iostream>
+
+#include "WavEmitter.hpp"
+#include "Source.hpp"
+
+SFLAudio::WavEmitter::WavEmitter(char *filename)
+ : mData(0)
+ , mSize(0)
+{
+ ALenum format;
+ ALsizei freq;
+ ALboolean loop;
+
+ // Load test.wav
+ alutLoadWAVFile(filename, &format,&mData,&mSize,&freq,&loop);
+ ALenum error = alGetError();
+ if (error != AL_NO_ERROR) {
+ std::cerr << "OpenAL: loadWAVFile : " << alGetString(error);
+ mData = 0;
+ }
+ else {
+ setFrequency(freq);
+ setFormat(format);
+ }
+}
+
+void
+SFLAudio::WavEmitter::play()
+{
+ Source *source = getSource();
+ if(source && mData) {
+ source->play(mData, mSize);
+
+ // Unload test.wav
+ alutUnloadWAV(getFormat(), mData, mSize, getFrequency());
+ ALenum error = alGetError();
+ if (error != AL_NO_ERROR) {
+ std::cerr << "OpenAL: unloadWAV : " << alGetString(error);
+ }
+ }
+}
diff --git a/src/audio/OpenAL/WavEmitter.hpp b/src/audio/OpenAL/WavEmitter.hpp
new file mode 100644
index 0000000000..34af517b0e
--- /dev/null
+++ b/src/audio/OpenAL/WavEmitter.hpp
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2004-2005 Savoir-Faire Linux inc.
+ * Author: Jean-Philippe Barrette-LaPierre
+ * <jean-philippe.barrette-lapierre@savoirfairelinux.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __SFLAUDIO_WAV_EMITTER_HPP__
+#define __SFLAUDIO_WAV_EMITTER_HPP__
+
+#include <AL/al.h>
+#include "Emitter.hpp"
+
+namespace SFLAudio
+{
+ class Source;
+
+ class WavEmitter : public Emitter
+ {
+ private:
+ WavEmitter();
+
+ public:
+ WavEmitter(char *filename);
+ void play();
+
+ private:
+ ALvoid *mData;
+ ALsizei mSize;
+ };
+}
+
+#endif
diff --git a/src/audio/OpenAL/example04.cpp b/src/audio/OpenAL/example04.cpp
new file mode 100644
index 0000000000..85548ad44c
--- /dev/null
+++ b/src/audio/OpenAL/example04.cpp
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2004-2005 Savoir-Faire Linux inc.
+ * Author: Jean-Philippe Barrette-LaPierre
+ * <jean-philippe.barrette-lapierre@savoirfairelinux.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <iostream>
+#include <list>
+#include <string>
+
+#include "SFLAudio.hpp"
+#include "WavEmitter.hpp"
+
+using namespace SFLAudio;
+
+int main(int, char* [])
+{
+
+ AudioLayer *layer = SFLAudio::AudioManager::instance().currentLayer();
+ Device *device = layer->openDevice();
+ Context *context = device->createContext();
+
+ // Load test.wav
+ SFLAudio::WavEmitter wav("test.wav");
+ wav.connect(context);
+
+ wav.play();
+
+ // Wait for user input.
+ std::cout << "Press any key to quit the program." << std::endl;
+ std::cin.get();
+}
--
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