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https://github.com/memo/ofxMSAOpenCL

C++ openFrameworks addon for very simple to use wrapper for OpenCL. All underlying openCL objects are accessible to allow advanced features too if need be
https://github.com/memo/ofxMSAOpenCL

Last synced: 18 days ago
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C++ openFrameworks addon for very simple to use wrapper for OpenCL. All underlying openCL objects are accessible to allow advanced features too if need be

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README 

        
ofxMSAOpenCL

=====================================



Introduction

------------

C++ openFrameworks addon for very simple to use wrapper for OpenCL. All underlying openCL objects are accessible to allow advanced features too if need be.

Demo (1M particles @ 100-200 fps) at [vimeo.com/7332496](http://vimeo.com/7332496)



Licence

-------

The code in this repository is available under the [MIT License](https://secure.wikimedia.org/wikipedia/en/wiki/Mit_license).  

Copyright (c) 2008-2012 Memo Akten, [www.memo.tv](http://www.memo.tv)  

The Mega Super Awesome Visuals Company



Some Windows & OpenGL / interop specific additions (c) [tgfrerer](http://poniesandlight.co.uk), placed under MIT license. 



Installation

------------

Copy to your openFrameworks/addons folder.



I've had some problems on 10.8 with OpenCL. I've had to install these drivers [www.nvidia.com/object/cuda-mac-driver.html](http://www.nvidia.com/object/cuda-mac-driver.html) for my graphics card to work.



## Windows / VS 2012 



On Windows using Visual Studio, make sure to point your compiler to the right location of the OpenCL headers. You'll find an example ```.props``` property file in ```libs/OpenCL/lib/vs/``` - this file should work for the latest Windows CUDA/OpenCL Nvidia SDK. You can add it to your project by clicking "Add Existing Property Sheet" in the vs2012 Property Manager window. If it doesn't work, inspect it using a text editor and make sure the path to the OpenCL headers is correct for your development system.



Dependencies

------------



### Windows / NVidia



* CUDA SDK [https://developer.nvidia.com/cuda-downloads]



### Examples



Some examples also require [ofxMSATimer]{https://github.com/memo/ofxMSATimer}



Compatibility

------------

openFrameworks 0.8+  

I am generally testing only with [openFrameworks](www.openframeworks.cc), however it should work with [Cinder](www.libcinder.org) too. If it doesn't, please file an issue.



Known issues

------------

none



Version history

------------

### v2.3

- additions for safe OpenGL/OpenCL interop on windows and OS X

- reliable detection of platforms and devices on windows, OS X

- MSAOpenCLBufferManagedT to be compatible with GL interop elements (see particle example) 

### v2.2

- MSAOpenCLBufferManagedT: Memory Object High level wrapper, allocates and manages host and client memory objects

### v2.1    23/09/2012

- compatible with OF0072

- renamed (uppercase) MSA namespace to (lowercase) msa. (kept MSA as an alias for backwards compatibility)

- no longer requires MSACore



### v2.0

- move to centralized MSALibs (requires MSACore)

- everything is MSA:: namespace



### v0.3

- added image support

- restructured buffer/memory management

- minor break in backwards compatability: createBuffer returns ofxOpenCLBuffer instead of cl_mem. so

   - writeBuffer and readBuffer are methods of ofxOpenCLBuffer, not ofxOpenCL

   - when passing buffer (or image) as parameter to ofxOpenCLKernel::setArg, use ofxOpenCLBuffer::getMemoryObject() (which returns the cl_mem)



### v0.2

- added support for multiple devices

- sharing context with opengl (only on mac osx at the moment)

- better handling of multi-dimensional data (minor backwards compatability break with kernel::run)

- support for opengl/opencl buffer+texture sharing 

- can load programs from binary (support for creating binary coming soon)



### v0.1

- initial version