Add clipping for intrinsics.

Change-Id: Ic7e1da3c69aa3d5f990816178739120b6059e7a5

rs/java/android/renderscript/ScriptIntrinsicHistogram.java

@@ -67,6 +67,24 @@ public final class ScriptIntrinsicHistogram extends ScriptIntrinsic {
      * @param ain The input image
      */
     public void forEach(Allocation ain) {
+        forEach(ain, null);
+    }
+
+    /**
+     * Process an input buffer and place the histogram into the
+     * output allocation. The output allocation may be a narrower
+     * vector size than the input. In this case the vector size of
+     * the output is used to determine how many of the input
+     * channels are used in the computation. This is useful if you
+     * have an RGBA input buffer but only want the histogram for
+     * RGB.
+     *
+     * 1D and 2D input allocations are supported.
+     *
+     * @param ain The input image
+     * @param opt LaunchOptions for clipping
+     */
+    public void forEach(Allocation ain, Script.LaunchOptions opt) {
         if (ain.getType().getElement().getVectorSize() <
             mOut.getType().getElement().getVectorSize()) {
 
@@ -78,9 +96,11 @@ public final class ScriptIntrinsicHistogram extends ScriptIntrinsic {
             throw new RSIllegalArgumentException("Output type must be U32 or I32.");
         }
 
-        forEach(0, ain, null, null);
+        forEach(0, ain, null, null, opt);
     }
 
+
+
     /**
      * Set the coefficients used for the RGBA to Luminocity
      * calculation. The default is {0.299f, 0.587f, 0.114f, 0.f}.
@@ -137,6 +157,7 @@ public final class ScriptIntrinsicHistogram extends ScriptIntrinsic {
         setVar(1, aout);
     }
 
+
     /**
      * Process an input buffer and place the histogram into the
      * output allocation. The dot product of the input channel and
@@ -148,6 +169,21 @@ public final class ScriptIntrinsicHistogram extends ScriptIntrinsic {
      * @param ain The input image
      */
     public void forEach_Dot(Allocation ain) {
+        forEach_Dot(ain, null);
+    }
+
+    /**
+     * Process an input buffer and place the histogram into the
+     * output allocation. The dot product of the input channel and
+     * the coefficients from 'setDotCoefficients' are used to
+     * calculate the output values.
+     *
+     * 1D and 2D input allocations are supported.
+     *
+     * @param ain The input image
+     * @param opt LaunchOptions for clipping
+     */
+    public void forEach_Dot(Allocation ain, Script.LaunchOptions opt) {
         if (mOut.getType().getElement().getVectorSize() != 1) {
             throw new RSIllegalArgumentException("Output vector size must be one.");
         }
@@ -156,7 +192,7 @@ public final class ScriptIntrinsicHistogram extends ScriptIntrinsic {
             throw new RSIllegalArgumentException("Output type must be U32 or I32.");
         }
 
-        forEach(1, ain, null, null);
+        forEach(1, ain, null, null, opt);
     }