introduced CLAccessorFactory spi and threadlocal default impl for CLDevice and CLPlatform.

1 files changed, 92 insertions, 0 deletions

diff --git a/src/com/jogamp/opencl/impl/CLTLAccessorFactory.java b/src/com/jogamp/opencl/impl/CLTLAccessorFactory.java
new file mode 100644
index 00000000..1c7f9526
--- /dev/null
+++ b/src/com/jogamp/opencl/impl/CLTLAccessorFactory.java
@@ -0,0 +1,92 @@
+/*
+ * Created on Wednesday, May 25 2011 00:57
+ */
+package com.jogamp.opencl.impl;
+
+import java.nio.IntBuffer;
+import com.jogamp.common.nio.NativeSizeBuffer;
+import com.jogamp.opencl.CL;
+import com.jogamp.opencl.spi.CLAccessorFactory;
+import com.jogamp.opencl.spi.CLInfoAccessor;
+import com.jogamp.opencl.spi.CLPlatformInfoAccessor;
+import java.nio.Buffer;
+
+import static com.jogamp.opencl.CLException.*;
+
+/**
+ *
+ * @author Michael Bien
+ */
+public class CLTLAccessorFactory implements CLAccessorFactory {
+
+    @Override
+    public CLInfoAccessor createDeviceInfoAccessor(CL cl, long id) {
+        return new CLDeviceInfoAccessor(cl, id);
+    }
+
+    @Override
+    public CLPlatformInfoAccessor createPlatformInfoAccessor(CL cl, long id) {
+        return new CLTLPlatformInfoAccessor(cl, id);
+    }
+
+    private final static class CLDeviceInfoAccessor extends CLTLInfoAccessor {
+
+        private final CL cl;
+        private final long ID;
+
+        private CLDeviceInfoAccessor(CL cl, long id) {
+            this.cl = cl;
+            this.ID = id;
+        }
+
+        @Override
+        public int getInfo(int name, long valueSize, Buffer value, NativeSizeBuffer valueSizeRet) {
+            return cl.clGetDeviceInfo(ID, name, valueSize, value, valueSizeRet);
+        }
+
+    }
+
+    private final static class CLTLPlatformInfoAccessor extends CLTLInfoAccessor implements CLPlatformInfoAccessor {
+
+        private final long ID;
+        private final CL cl;
+
+        private CLTLPlatformInfoAccessor(CL cl, long id) {
+            this.ID = id;
+            this.cl = cl;
+        }
+
+        @Override
+        public int getInfo(int name, long valueSize, Buffer value, NativeSizeBuffer valueSizeRet) {
+            return cl.clGetPlatformInfo(ID, name, valueSize, value, valueSizeRet);
+        }
+
+        @Override
+        public long[] getDeviceIDs(long type) {
+
+            IntBuffer buffer = getBB(4).asIntBuffer();
+            int ret = cl.clGetDeviceIDs(ID, type, 0, null, buffer);
+            int count = buffer.get(0);
+
+            // return an empty buffer rather than throwing an exception
+            if(ret == CL.CL_DEVICE_NOT_FOUND || count == 0) {
+                return new long[0];
+            }else{
+                checkForError(ret, "error while enumerating devices");
+
+                NativeSizeBuffer deviceIDs = NativeSizeBuffer.wrap(getBB(count*NativeSizeBuffer.elementSize()));
+                ret = cl.clGetDeviceIDs(ID, type, count, deviceIDs, null);
+                checkForError(ret, "error while enumerating devices");
+
+                long[] ids = new long[count];
+                for (int i = 0; i < ids.length; i++) {
+                    ids[i] = deviceIDs.get(i);
+                }
+                return ids;
+            }
+
+        }
+
+    }
+
+}