1 files changed, 83 insertions, 0 deletions
diff --git a/src/com/mbien/opencl/CLGLContext.java b/src/com/mbien/opencl/CLGLContext.java
new file mode 100644
index 00000000..9699c1ba
--- /dev/null
+++ b/src/com/mbien/opencl/CLGLContext.java
@@ -0,0 +1,83 @@
+package com.mbien.opencl;
+
+import java.nio.Buffer;
+import com.mbien.opencl.CLBuffer.Mem;
+import com.sun.opengl.impl.GLContextImpl;
+import com.sun.opengl.impl.macosx.cgl.MacOSXCGLContext;
+import com.sun.opengl.impl.windows.wgl.WindowsWGLContext;
+import com.sun.opengl.impl.x11.glx.X11GLXContext;
+import com.sun.opengl.impl.x11.glx.X11GLXGraphicsConfiguration;
+import java.nio.LongBuffer;
+import javax.media.nativewindow.DefaultGraphicsConfiguration;
+import javax.media.opengl.GLContext;
+
+/**
+ *
+ * @author Michael Bien
+ */
+public final class CLGLContext extends CLContext {
+
+    final long glContextID;
+
+    private CLGLContext(long clContextID, long glContextID) {
+        super(clContextID);
+        this.glContextID = glContextID;
+    }
+
+    public static CLGLContext create(GLContext glContext) {
+
+        long glID = glContext.getContext();
+
+//UNIX
+//cl_context_properties props[] = {
+//         CL_GL_CONTEXT_KHR, (cl_context_properties)glXGetCurrentContext(),
+//         CL_GLX_DISPLAY_KHR,  (cl_context_properties) glXGetCurrentDisplay(),
+//         CL_CONTEXT_PLATFORM, (cl_context_properties)cpPlatform, 0};
+
+//WIN32
+//cl_context_properties props[] = {
+//         CL_GL_CONTEXT_KHR, (cl_context_properties)TODO0,
+//         CL_WGL_HDC_KHR, (cl_context_properties)TODO 0,
+//         CL_CONTEXT_PLATFORM, (cl_context_properties)cpPlatform, 0};
+
+//MACOSX
+//cl_context_properties props[] = {
+//         CL_CGL_SHAREGROUP_KHR, (cl_context_properties)TODO 0,
+//         CL_CONTEXT_PLATFORM, (cl_context_properties)cpPlatform, 0};
+
+        GLContextImpl ctxImpl = (GLContextImpl)glContext;
+
+        DefaultGraphicsConfiguration config = (DefaultGraphicsConfiguration)ctxImpl.getDrawableImpl()
+             .getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
+
+        LongBuffer properties = LongBuffer.allocate(5);
+        if(glContext instanceof X11GLXContext) {
+            long handle = config.getScreen().getDevice().getHandle();
+            properties.put(CLGLI.CL_GL_CONTEXT_KHR).put(glID)
+                      .put(CLGLI.CL_GLX_DISPLAY_KHR).put(handle);
+        }else if(glContext instanceof WindowsWGLContext) {
+            // TODO test on windows
+            throw new RuntimeException("cl-gl interoperability on windows not yet implemented");
+        }else if(glContext instanceof MacOSXCGLContext) {
+            // TODO test on mac
+            throw new RuntimeException("cl-gl interoperability on mac not yet implemented");
+        }
+        
+        properties.put(0).rewind(); // 0 terminated array
+
+        long clID = createContextFromType(properties, CL.CL_DEVICE_TYPE_ALL);
+
+        return new CLGLContext(clID, glID);
+    }
+
+
+    public final <B extends Buffer> CLBuffer<B> createFromGLBuffer(B directBuffer, int glBuffer, Mem... flags) {
+        return createFromGLBuffer(directBuffer, glBuffer, Mem.flagsToInt(flags));
+    }
+
+    public final <B extends Buffer> CLBuffer<B> createFromGLBuffer(B directBuffer, int glBuffer, int flags) {
+        CLBuffer<B> buffer = new CLBuffer<B>(this, directBuffer, glBuffer, flags);
+        buffers.add(buffer);
+        return buffer;
+    }
+}