Hi there
I am running my own applet inside of LWJGL_Applet 2.9.3 Applet Loader. I am please to say my applet (which already contains other functionality) works alright. So I added the OpenCL sum example code (http://wiki.lwjgl.org/wiki/Sum_Example).
Alas at runtime, an exception is thrown on CL.create():
org.lwjgl.LWJGLException: Could not locate OpenCL library.
The obvious:
- I am using the pre-signed jars downloaded as LWJGL Applet 2.9.3.
- windows_natives.jar is in the same directory as lwjgl_util_applet.jar on the web server
- the AppletLoader applet gets launched with:
<param name="al_windows" value="windows_natives.jar">Having checked the obvious, I'm stumped - can anybody help please?
have you got opencl drivers installed on your system for your GPU? I believe you still need the OS drivers for this to work, the natives in LWJGL just bind the OS level libraries.
Ok, so my original hardware didn't support OpenCL, so I tried on a different machine with new drivers. Now I get a nullpointerexception from platform.getDevices()
CL.create();
CLPlatform platform = CLPlatform.getPlatforms().get(0);
List<CLDevice> devices = platform.getDevices(CL_DEVICE_TYPE_GPU);
CLContext context = CLContext.create(platform, devices, null, null, null);
java.lang.NullPointerException
at org.lwjgl.opencl.InfoUtilFactory$CLContextUtil.create(InfoUtilFactory.java:102)
at org.lwjgl.opencl.CLContext.create(CLContext.java:173)
Alas I'm no longer at the computer I was able to try this on! Is this likely to mean the other computer had no suitable device either?