Files
maszyna/audiorenderer.cpp

84 lines
2.1 KiB
C++

/*
This Source Code Form is subject to the
terms of the Mozilla Public License, v.
2.0. If a copy of the MPL was not
distributed with this file, You can
obtain one at
http://mozilla.org/MPL/2.0/.
*/
#include "stdafx.h"
#include "audiorenderer.h"
#include "logs.h"
namespace audio {
openal_renderer renderer;
openal_renderer::~openal_renderer() {
::alcMakeContextCurrent( nullptr );
if( m_context != nullptr ) { ::alcDestroyContext( m_context ); }
if( m_device != nullptr ) { ::alcCloseDevice( m_device ); }
}
buffer_handle
openal_renderer::fetch_buffer( std::string const &Filename ) {
return m_buffers.create( Filename );
}
// initializes the service
bool
openal_renderer::init() {
if( true == m_ready ) {
// already initialized and enabled
return true;
}
if( false == init_caps() ) {
// basic initialization failed
return false;
}
m_ready = true;
return true;
}
bool
openal_renderer::init_caps() {
// select the "preferred device"
// TODO: support for opening config-specified device
m_device = ::alcOpenDevice( nullptr );
if( m_device == nullptr ) {
ErrorLog( "Failed to obtain audio device" );
return false;
}
ALCint versionmajor, versionminor;
::alcGetIntegerv( m_device, ALC_MAJOR_VERSION, 1, &versionmajor );
::alcGetIntegerv( m_device, ALC_MINOR_VERSION, 1, &versionminor );
auto const oalversion { std::to_string( versionmajor ) + "." + std::to_string( versionminor ) };
WriteLog(
"Audio Renderer: " + std::string { (char *)::alcGetString( m_device, ALC_DEVICE_SPECIFIER ) }
+ " OpenAL Version: " + oalversion );
WriteLog( "Supported extensions: " + std::string{ (char *)::alcGetString( m_device, ALC_EXTENSIONS ) } );
m_context = ::alcCreateContext( m_device, nullptr );
if( m_context == nullptr ) {
ErrorLog( "Failed to create audio context" );
return false;
}
return ( ::alcMakeContextCurrent( m_context ) == AL_TRUE );
}
} // audio
//---------------------------------------------------------------------------