From 92b8d7fb0b202400da46edbba9e8c74d322694e8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= Date: Sun, 11 Aug 2013 19:20:37 +0200 Subject: [PATCH] Audio: added Context class. --- src/Audio/Audio.h | 1 + src/Audio/CMakeLists.txt | 2 + src/Audio/Context.cpp | 65 +++++++++++++++++++++++++++ src/Audio/Context.h | 95 ++++++++++++++++++++++++++++++++++++++++ src/Context.h | 2 +- 5 files changed, 164 insertions(+), 1 deletion(-) create mode 100644 src/Audio/Context.cpp create mode 100644 src/Audio/Context.h diff --git a/src/Audio/Audio.h b/src/Audio/Audio.h index fb332b3c4..7fd001759 100644 --- a/src/Audio/Audio.h +++ b/src/Audio/Audio.h @@ -32,6 +32,7 @@ namespace Magnum { namespace Audio { class AbstractImporter; class Buffer; +class Context; class Source; /* Renderer used only statically */ diff --git a/src/Audio/CMakeLists.txt b/src/Audio/CMakeLists.txt index ee770a512..ba125c954 100644 --- a/src/Audio/CMakeLists.txt +++ b/src/Audio/CMakeLists.txt @@ -30,6 +30,7 @@ set(MagnumAudio_SOURCES AbstractImporter.cpp Audio.cpp Buffer.cpp + Context.cpp Renderer.cpp Source.cpp) @@ -37,6 +38,7 @@ set(MagnumAudio_HEADERS AbstractImporter.h Audio.h Buffer.h + Context.h Renderer.h Source.h diff --git a/src/Audio/Context.cpp b/src/Audio/Context.cpp new file mode 100644 index 000000000..86af094de --- /dev/null +++ b/src/Audio/Context.cpp @@ -0,0 +1,65 @@ +/* + This file is part of Magnum. + + Copyright © 2010, 2011, 2012, 2013 Vladimír Vondruš + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + DEALINGS IN THE SOFTWARE. +*/ + +#include "Context.h" + +#include +#include +#include + +#include "Magnum.h" + +namespace Magnum { namespace Audio { + +Context* Context::_current = nullptr; + +Context::Context() { + CORRADE_ASSERT(!_current, "Audio::Context: context already created", ); + + /* Open default device */ + const ALCchar* const defaultDevice = alcGetString(nullptr, ALC_DEFAULT_DEVICE_SPECIFIER); + _device = alcOpenDevice(defaultDevice); + if(!_device) { + Error() << "Audio::Context: cannot open sound device" << defaultDevice; + std::exit(1); + } + + _context = alcCreateContext(_device, nullptr); + if(!_context) { + Error() << "Audio::Context: cannot create context:" << alcGetError(_device); + std::exit(1); + } + + alcMakeContextCurrent(_context); + _current = this; +} + +Context::~Context() { + CORRADE_INTERNAL_ASSERT(_current == this); + + alcDestroyContext(_context); + alcCloseDevice(_device); +} + +}} diff --git a/src/Audio/Context.h b/src/Audio/Context.h new file mode 100644 index 000000000..b28bba470 --- /dev/null +++ b/src/Audio/Context.h @@ -0,0 +1,95 @@ +#ifndef Magnum_Audio_Context_h +#define Magnum_Audio_Context_h +/* + This file is part of Magnum. + + Copyright © 2010, 2011, 2012, 2013 Vladimír Vondruš + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + DEALINGS IN THE SOFTWARE. +*/ + +/** @file + * @brief Class Magnum::Audio::Context + */ + +#include +#include + +#include "Audio/magnumAudioVisibility.h" + +#ifndef DOXYGEN_GENERATING_OUTPUT +typedef struct ALCdevice_struct ALCdevice; +typedef struct ALCcontext_struct ALCcontext; +#endif + +namespace Magnum { namespace Audio { + +/** +@brief OpenAL context + */ +class MAGNUM_AUDIO_EXPORT Context { + public: + /** @brief Current context */ + static Context* current() { return _current; } + + /** + * @brief Constructor + * + * Creates OpenAL context. + */ + explicit Context(); + + /** + * @brief Destructor + * + * Destroys OpenAL context. + */ + ~Context(); + + /** + * @brief Vendor string + * + * @see rendererString(), @fn_al{GetString} with @def_al{VENDOR} + */ + std::string vendorString() const { return alGetString(AL_VENDOR); } + + /** + * @brief %Renderer string + * + * @see vendorString(), @fn_al{GetString} with @def_al{RENDERER} + */ + std::string rendererString() const { return alGetString(AL_RENDERER); } + + /** + * @brief Version string + * + * @see @fn_al{GetString} with @def_al{VERSION} + */ + std::string versionString() const { return alGetString(AL_VERSION); } + + private: + static Context* _current; + + ALCdevice* _device; + ALCcontext* _context; +}; + +}} + +#endif diff --git a/src/Context.h b/src/Context.h index 018f8ffcf..b38aa0a88 100644 --- a/src/Context.h +++ b/src/Context.h @@ -24,7 +24,7 @@ DEALINGS IN THE SOFTWARE. */ -/** @file +/** @file /Context.h * @brief Enum Magnum::Version, class Magnum::Context, Magnum::Extension, macro MAGNUM_ASSERT_VERSION_SUPPORTED(), MAGNUM_ASSERT_EXTENSION_SUPPORTED() */