RenderScript bicubic resize intrinsic [DO NOT MERGE]

Change-Id: Icebfb3137aacddce0705834c6d4d2547c709cb0a

diff --git a/api/current.txt b/api/current.txt
index ee6f3f2..cc8e311 100644 (file)
--- a/api/current.txt
+++ b/api/current.txt
@@ -22689,6 +22689,15 @@ package android.renderscript {
     method public void setRed(int, int);
   }
 
+  public final class ScriptIntrinsicResize extends android.renderscript.ScriptIntrinsic {
+    method public static android.renderscript.ScriptIntrinsicResize create(android.renderscript.RenderScript);
+    method public void forEach_bicubic(android.renderscript.Allocation);
+    method public void forEach_bicubic(android.renderscript.Allocation, android.renderscript.Script.LaunchOptions);
+    method public android.renderscript.Script.FieldID getFieldID_Input();
+    method public android.renderscript.Script.KernelID getKernelID_bicubic();
+    method public void setInput(android.renderscript.Allocation);
+  }
+
   public final class ScriptIntrinsicYuvToRGB extends android.renderscript.ScriptIntrinsic {
     method public static android.renderscript.ScriptIntrinsicYuvToRGB create(android.renderscript.RenderScript, android.renderscript.Element);
     method public void forEach(android.renderscript.Allocation);

diff --git a/graphics/java/android/renderscript/ScriptIntrinsicResize.java b/graphics/java/android/renderscript/ScriptIntrinsicResize.java
new file mode 100644 (file)
index 0000000..a42d3be
--- /dev/null
+++ b/graphics/java/android/renderscript/ScriptIntrinsicResize.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2014 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;
+
+/**
+ * Intrinsic for performing a resize of a 2D allocation.
+ */
+public final class ScriptIntrinsicResize extends ScriptIntrinsic {
+    private Allocation mInput;
+
+    private ScriptIntrinsicResize(int id, RenderScript rs) {
+        super(id, rs);
+    }
+
+    /**
+     * Supported elements types are {@link Element#U8}, {@link
+     * Element#U8_2}, {@link Element#U8_3}, {@link Element#U8_4}
+     *
+     * @param rs The RenderScript context
+     *
+     * @return ScriptIntrinsicResize
+     */
+    public static ScriptIntrinsicResize create(RenderScript rs) {
+        int id = rs.nScriptIntrinsicCreate(12, 0);
+        ScriptIntrinsicResize si = new ScriptIntrinsicResize(id, rs);
+        return si;
+
+    }
+
+    /**
+     * Set the input of the resize.
+     * Must match the element type supplied during create.
+     *
+     * @param ain The input allocation.
+     */
+    public void setInput(Allocation ain) {
+        Element e = ain.getElement();
+        if (!e.isCompatible(Element.U8(mRS)) &&
+            !e.isCompatible(Element.U8_2(mRS)) &&
+            !e.isCompatible(Element.U8_3(mRS)) &&
+            !e.isCompatible(Element.U8_4(mRS))) {
+            throw new RSIllegalArgumentException("Unsuported element type.");
+        }
+
+        mInput = ain;
+        setVar(0, ain);
+    }
+
+    /**
+     * Get a FieldID for the input field of this intrinsic.
+     *
+     * @return Script.FieldID The FieldID object.
+     */
+    public Script.FieldID getFieldID_Input() {
+        return createFieldID(0, null);
+    }
+
+
+    /**
+     * Resize copy the input allocation to the output specified. The
+     * Allocation is rescaled if necessary using bi-cubic
+     * interpolation.
+     *
+     * @param aout Output allocation. Element type must match
+     *             current input.  Must not be same as input.
+     */
+    public void forEach_bicubic(Allocation aout) {
+        if (aout == mInput) {
+            throw new RSIllegalArgumentException("Output cannot be same as Input.");
+        }
+        forEach_bicubic(aout, null);
+    }
+
+    /**
+     * Resize copy the input allocation to the output specified. The
+     * Allocation is rescaled if necessary using bi-cubic
+     * interpolation.
+     *
+     * @param aout Output allocation. Element type must match
+     *             current input.
+     * @param opt LaunchOptions for clipping
+     */
+    public void forEach_bicubic(Allocation aout, Script.LaunchOptions opt) {
+        forEach(0, null, aout, null, opt);
+    }
+
+    /**
+     * Get a KernelID for this intrinsic kernel.
+     *
+     * @return Script.KernelID The KernelID object.
+     */
+    public Script.KernelID getKernelID_bicubic() {
+        return createKernelID(0, 2, null, null);
+    }
+
+
+}
+