initial import of utility API for filtering platforms.

2 files changed, 66 insertions, 0 deletions

diff --git a/src/com/jogamp/opencl/util/CLPlatformFilters.java b/src/com/jogamp/opencl/util/CLPlatformFilters.java
new file mode 100644
index 00000000..a1279f10
--- /dev/null
+++ b/src/com/jogamp/opencl/util/CLPlatformFilters.java
@@ -0,0 +1,48 @@
+package com.jogamp.opencl.util;
+
+import com.jogamp.opencl.CLDevice;
+import com.jogamp.opencl.CLPlatform;
+import com.jogamp.opencl.CLVersion;
+import java.util.Arrays;
+
+/**
+ * Pre-defined filters.
+ * @author Michael Bien
+ * @see CLPlatform#getDefault(com.jogamp.opencl.util.Filter<com.jogamp.opencl.CLPlatform>[])
+ * @see CLPlatform#listCLPlatforms(com.jogamp.opencl.util.Filter<com.jogamp.opencl.CLPlatform>[]) 
+ */
+public class CLPlatformFilters {
+
+    /**
+     * Accepts all platforms supporting at least the given OpenCL spec version.
+     */
+    public static Filter<CLPlatform> version(final CLVersion version) {
+        return new Filter<CLPlatform>() {
+            public boolean accept(CLPlatform item) {
+                return item.isAtLeast(version);
+            }
+        };
+    }
+
+    /**
+     * Accepts all platforms containing devices of the given type.
+     */
+    public static Filter<CLPlatform> type(final CLDevice.Type type) {
+        return new Filter<CLPlatform>() {
+            public boolean accept(CLPlatform item) {
+                return item.listCLDevices(type).length > 0;
+            }
+        };
+    }
+
+    /**
+     * Accepts all platforms containing devices of the given extensions.
+     */
+    public static Filter<CLPlatform> extensions(final String... extensions) {
+        return new Filter<CLPlatform>() {
+            public boolean accept(CLPlatform item) {
+                return item.getExtensions().containsAll(Arrays.asList(extensions));
+            }
+        };
+    }
+}
diff --git a/src/com/jogamp/opencl/util/Filter.java b/src/com/jogamp/opencl/util/Filter.java
new file mode 100644
index 00000000..a1bd57a2
--- /dev/null
+++ b/src/com/jogamp/opencl/util/Filter.java
@@ -0,0 +1,18 @@
+/*
+ * Created on Sunday, September 19 2010
+ */
+
+package com.jogamp.opencl.util;
+
+/**
+ *
+ * @author Michael Bien
+ */
+public interface Filter<I> {
+
+    /**
+     * Returns true only if the item should be accepted.
+     */
+    public boolean accept(I item);
+
+}