From 7c7146428a0584ad38f036d24a70c15f700f9a8e Mon Sep 17 00:00:00 2001
From: Wade Walker <wwalker3@austin.rr.com>
Date: Sun, 20 Sep 2015 15:09:04 -0500
Subject: Add ability to access newer CLImpl versions for devices

Added a CLPlatform method to return a CLImpl version specific to a
device. This lets the user get a CLImpl12 or CLImpl20 instance which
they could then cast to the right type and use to access newer CL
functions than those in the default CLImpl11 object.
---
 src/com/jogamp/opencl/CLPlatform.java | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

(limited to 'src/com/jogamp/opencl/CLPlatform.java')

diff --git a/src/com/jogamp/opencl/CLPlatform.java b/src/com/jogamp/opencl/CLPlatform.java
index f0faa0fb..11a562c5 100644
--- a/src/com/jogamp/opencl/CLPlatform.java
+++ b/src/com/jogamp/opencl/CLPlatform.java
@@ -47,7 +47,10 @@ import com.jogamp.opencl.llb.CLMemObjBinding;
 import com.jogamp.opencl.spi.CLPlatformInfoAccessor;
 import com.jogamp.opencl.util.CLUtil;
 import com.jogamp.opencl.llb.impl.CLImpl11;
+import com.jogamp.opencl.llb.impl.CLImpl12;
+import com.jogamp.opencl.llb.impl.CLImpl20;
 import com.jogamp.opencl.spi.CLAccessorFactory;
+import com.jogamp.opencl.spi.CLInfoAccessor;
 import com.jogamp.opencl.util.Filter;
 
 import java.nio.IntBuffer;
@@ -248,13 +251,32 @@ public class CLPlatform {
     }
 
     /**
-     * Returns the low level binding interface to the OpenCL APIs.
+     * Returns the low level binding interface to the OpenCL APIs. This interface is always for OpenCL 1.1.
      */
     public static CL getLowLevelCLInterface() {
         initialize();
         return cl;
     }
 
+    /**
+     * Returns the low level binding interface to the OpenCL APIs for the specified device. This interface
+     * is the newest one the device supports.
+     */
+    public static CL getLowLevelCLInterfaceForDevice(final long device) {
+        initialize();
+        
+        CLInfoAccessor deviceInfo = defaultFactory.createDeviceInfoAccessor(cl, device);
+        CLVersion version = new CLVersion(deviceInfo.getString(CL_DEVICE_VERSION));
+
+        if(version.isEqual(CLVersion.CL_1_2))
+        	return new CLImpl12();
+
+        if(version.isEqual(CLVersion.CL_2_0))
+        	return new CLImpl20();
+
+        return cl;
+    }
+
     /**
      * Hint to allow the implementation to release the resources allocated by the OpenCL compiler.
      * Calls to {@link CLProgram#build()} after unloadCompiler will reload the compiler if necessary.
-- 
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