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README.md
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README.md
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# Version 2.4.0 dev
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# cAudio
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This is the development branch for cAudio development.
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If you need a stable version of cAudio please use the 2.3.0 tag.
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cAudio is a fine OpenAL wrapper with a modern, OOP-oriented API for C++.
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Author Contact
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=============
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Name: Raynaldo Rivera
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AFAICS, it had been started by a dude named *wildicv* and's been taken over by another dude by the name of *R4stl1n*. They might even be the same guy, I don't know. Big cheers to both of them anyway.
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Twitter: @R4stl1n
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The reason I forked this [repo](https://github.com/wildicv/cAudio.git) from GitHub is that it has been abandoned and its CMake configuration has gone stale for more recent versions. Moreover, x64 builds on Windows were an impossible task. This repo here corrects both. Some fixes are rather makeshift yet, but it does the job.
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Email: royal.r4stl1n@gmail.com
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As the original repo, this one also provides the OpenAL deps for Windows in binary form. On other platforms, OpenAL is assumed as a sys dependency.
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## Change log
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*Nothing yet
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## How To Build
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## Windows
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To compile:
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Install CMake if you don't already have it. http://www.cmake.org/cmake/resources/software.html
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To generate makefiles use: `cmake . -DCAUDIO_DEPENDENCIES <Path to the Dependencies folder>`. You can also use the graphical CMake utility and set the option in the list before you run generate.
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## Linux
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This is the build steps for building on a cleanly installed Ubuntu 11.10 system. Other systems should be similar and the build easy to adapt. If you run in to problems post an issue here and if you adapt these steps for another Linux distribution please contribute the information back so it can be included here. Solutions for common problems can be found after the build description.
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* First we need some basic build tools. The command `sudo apt-get install build-essential git cmake` will set you up with all you need for this build.
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* Then lets get some place for the project to live. `mkdir -p ~/Documents/projects` will set up what I use as a root for all my projects. (You can, of cause, choose any directory you like for this. The GIT command will make a cAudio sub directory for you so you don't have to make that.)
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Lets move in to the new directory `cd ~/Documents/projects`.
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* Next step is to clone the Github repo for cAudio. Just run `git clone https://github.com/wildicv/cAudio.git` to get your local copy of the source.
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* When the clone is done move in to the new directory `cd cAudio/CMake`.
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* Install the libraries needed for cAudio to build `sudo apt-get install libopenal-dev libogg-dev`. This will get you the OpenAL and OGG development files (headers and binaries).
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* You are now all set to generate the project of your choice. CMake defaults to unix makefiles but you can specify another with the -G switch. Run `cmake ../ -DCAUDIO_DEPENDENCIES_DIR=../Dependencies/` for a 32bit build or `cmake ../ -DCAUDIO_DEPENDENCIES_DIR=../Dependencies64/` for a 64bit build.
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* If CMake exits cleanly, run `make -j4` (The -j switch means 'jobs' and tells make how many threads to run. Twice the number of cores you have is recommended.)
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The project will now build and you can run an optional `sudo make install` to install the build .so files and headers system wide.
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## Common problems and solutions
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Here is a collection of problems and solutions that have come up while compiling on Linux
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### Errors on config_types.h
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On older versions of Linux you might get errors like:
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It's a lib and intended to be integrated in your CMake-based software project, ideally as a git submodule. For pointers, this is how I like to set it up in my projects:
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```
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In file included from /home/thijs/Downloads/cAudio/DependenciesSource/libogg-1.2.2/include/ogg/os_types.h:143,
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from /home/thijs/Downloads/cAudio/DependenciesSource/libogg-1.2.2/include/ogg/ogg.h:25,
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from /home/thijs/Downloads/cAudio/DependenciesSource/libvorbis-1.3.2/src/analysis.c:21:
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/usr/include/ogg/config_types.h:5: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘ogg_int16_t’
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/usr/include/ogg/config_types.h:6: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘ogg_uint16_t’
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/usr/include/ogg/config_types.h:7: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘ogg_int32_t’
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/usr/include/ogg/config_types.h:8: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘ogg_uint32_t’
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/usr/include/ogg/config_types.h:9: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘ogg_int64_t’
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set(CAUDIO_TARGET cAudio)
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set(CAUDIO_DIR <path to cAudio>/cAudio)
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set(CAUDIO_INC_DIR <path to cAudio>/cAudio/cAudio/include)
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add_subdirectory(${CAUDIO_DIR} EXCLUDE_FROM_ALL)
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```
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If you do it's an indication that your version of libogg is to old. The version required to function with cAudio is, probably, 1.2.0 or higher (the build described here uses 1.2.2). Try finding updated packages (on Ubuntu the packages are libogg0 and libogg-dev) for your distribution or build it from source that you'll find at http://xiph.org/downloads/ ...
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You might wanna check the CMake config from my project [flasim](https://git.socialnerds.org/otto/flasim).
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On **UNIX**oids (no confirm yet it also builds on Mac) it assumes the libraries *OpenAL* and *libOGG* (including development options, if your OS distinguishes) avail and ready.
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On **Windows** these dependencies are included, else it'd get too complicated - but you need to instruct CMake where to find them. Use the `CAUDIO_DEPENDENCIES_DIR` variable to point to the deps for your build. Make it point to the `cAudio/Dependencies` folder for a 32bit build and `cAudio/Dependencies64` for the x64 option. For example, when using the commandline, do this: `cmake -DCAUDIO_DEPENDENCIES_DIR=<path to>/cAudio/Dependencies[64?] (...)`
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### Compile As A System Lib
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If you're on an Arch Linux based OS, you're lucky. Find cAudio on the AUR.
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If you're not and want to do this, you're on your own. The original cAudio supported this and it might still work but I don't maintain this atm.
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## Note On C++ Standards
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While this version of cAudio builds fine on the latest fully supported C++17 standard on GCC, MSVC has some compile issues with spec'd standards above C++11.
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Building libogg from source is a simple process, it's a small library. Just follow the normal path of:
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1. Download sources
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2. Unpack the downloaded tar.gz somewhere
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3. Change to the directory with the unpacked source
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4. `./configure`
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5. `make`
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6. `make install` (as root)
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