1 files changed, 101 insertions, 0 deletions
diff --git a/rs/java/android/renderscript/ScriptIntrinsic3DLUT.java b/rs/java/android/renderscript/ScriptIntrinsic3DLUT.java
new file mode 100644
index 0000000..96ec875
--- /dev/null
+++ b/rs/java/android/renderscript/ScriptIntrinsic3DLUT.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.renderscript;
+
+import android.util.Log;
+
+/**
+ *
+ * Intrinsic for converting RGB to RGBA by using a 3D lookup table.  The
+ * incoming r,g,b values are use as normalized x,y,z coordinates into a 3D
+ * allocation.  The 8 nearest values are sampled and linearly interpolated.  The
+ * result is placed in the output.
+ *
+ **/
+public final class ScriptIntrinsic3DLUT extends ScriptIntrinsic {
+    private Allocation mLUT;
+    private Element mElement;
+
+    private ScriptIntrinsic3DLUT(long id, RenderScript rs, Element e) {
+        super(id, rs);
+        mElement = e;
+    }
+
+    /**
+     * Supported elements types are {@link Element#U8_4}
+     *
+     * The defaults tables are identity.
+     *
+     * @param rs The RenderScript context
+     * @param e Element type for intputs and outputs
+     *
+     * @return ScriptIntrinsic3DLUT
+     */
+    public static ScriptIntrinsic3DLUT create(RenderScript rs, Element e) {
+        long id = rs.nScriptIntrinsicCreate(8, e.getID(rs));
+
+        if (!e.isCompatible(Element.U8_4(rs))) {
+            throw new RSIllegalArgumentException("Element must be compatible with uchar4.");
+        }
+
+        return new ScriptIntrinsic3DLUT(id, rs, e);
+    }
+
+    /**
+     * Sets the {@link android.renderscript.Allocation} to be used as the lookup table.
+     *
+     * The lookup table must use the same {@link android.renderscript.Element} as the intrinsic.
+     *
+     */
+
+    public void setLUT(Allocation lut) {
+        final Type t = lut.getType();
+
+        if (t.getZ() == 0) {
+            throw new RSIllegalArgumentException("LUT must be 3d.");
+        }
+
+        if (!t.getElement().isCompatible(mElement)) {
+            throw new RSIllegalArgumentException("LUT element type must match.");
+        }
+
+        mLUT = lut;
+        setVar(0, mLUT);
+    }
+
+
+    /**
+     * Invoke the kernel and apply the lookup to each cell of ain
+     * and copy to aout.
+     *
+     * @param ain Input allocation
+     * @param aout Output allocation
+     */
+    public void forEach(Allocation ain, Allocation aout) {
+        forEach(0, ain, aout, null);
+    }
+
+    /**
+     * Get a KernelID for this intrinsic kernel.
+     *
+     * @return Script.KernelID The KernelID object.
+     */
+    public Script.KernelID getKernelID() {
+        return createKernelID(0, 3, null, null);
+    }
+}
+