Simplify RSUtils.java.

There's no need for the forEach methods.  The methods filling
arrays with random values should not care what the "step & skip"
is, as done previously, as entries that are skipped by our API
should just be ignored.  It's actually better to test with random
data in there, to make sure we don't somehow use the zero that
used to be there.

Change-Id: I7724b45f4a187699533a87a36c5a3d992092943a
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/AllocationResize.java b/tests/tests/renderscript/src/android/renderscript/cts/AllocationResize.java
index b6d9a1a..68d7274 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/AllocationResize.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/AllocationResize.java
@@ -49,7 +49,7 @@
         mIn.copy1DRangeFrom(0, INPUTSIZE, inArray);
 
         try {
-            RSUtils.forEach(this, 0, mIn, mOut);
+            forEach(0, mIn, mOut);
         } catch (RSRuntimeException e) {
         }
 
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/ClearObjectTest.java b/tests/tests/renderscript/src/android/renderscript/cts/ClearObjectTest.java
index 64deb33..e8a330a 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/ClearObjectTest.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/ClearObjectTest.java
@@ -66,7 +66,7 @@
         Allocation mOut = Allocation.createSized(mRS, Element.I32(mRS), ObjectNum);
         ms_clear.set_element(element);
         try {
-            RSUtils.forEach(this, TEST_ID_ELEMENT, mIn, mOut);
+            forEach(TEST_ID_ELEMENT, mIn, mOut);
         } catch (RSRuntimeException e) {
         }
         int[] tmpArray = new int[ObjectNum];
@@ -83,7 +83,7 @@
         ms_clear.set_type(type);
 
         try {
-            RSUtils.forEach(this, TEST_ID_TYPE, mIn, mOut);
+            forEach(TEST_ID_TYPE, mIn, mOut);
         } catch (RSRuntimeException e) {
         }
         int[] tmpArray = new int[ObjectNum];
@@ -99,7 +99,7 @@
         Allocation allocation = Allocation.createTyped(mRS, mIn.getType());
         ms_clear.set_allocation(allocation);
         try {
-            RSUtils.forEach(this, TEST_ID_ALLOCATION, mIn, mOut);
+            forEach(TEST_ID_ALLOCATION, mIn, mOut);
         } catch (RSRuntimeException e) {
         }
         int[] tmpArray = new int[ObjectNum];
@@ -115,7 +115,7 @@
         Allocation mIn = Allocation.createSized(mRS, Element.I32(mRS), ObjectNum);
         ms_clear.set_sampler(sampler);
         try {
-            RSUtils.forEach(this, TEST_ID_SAMPLER, mIn, mOut);
+            forEach(TEST_ID_SAMPLER, mIn, mOut);
         } catch (RSRuntimeException e) {
         }
         int[] tmpArray = new int[ObjectNum];
@@ -131,7 +131,7 @@
         Allocation mOut = Allocation.createSized(mRS, Element.I32(mRS), ObjectNum);
         ms_clear.set_script(script);
         try {
-            RSUtils.forEach(this, TEST_ID_SCRIPT, mIn, mOut);
+            forEach(TEST_ID_SCRIPT, mIn, mOut);
         } catch (RSRuntimeException e) {
         }
         int[] tmpArray = new int[ObjectNum];
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/GetElementAt.java b/tests/tests/renderscript/src/android/renderscript/cts/GetElementAt.java
index a9be1bc..babc1ef 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/GetElementAt.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/GetElementAt.java
@@ -62,7 +62,7 @@
         mOut = Allocation.createTyped(mRS, gIn.getType());
         script_x.set_gIn(gIn);
         try {
-            RSUtils.forEach(this, TEST_ID_X, mOut);
+            forEach(TEST_ID_X, mOut);
         } catch (RSRuntimeException e) {
         }
         mOut.copyTo(out);
@@ -83,7 +83,7 @@
         mOut = Allocation.createTyped(mRS, gIn.getType());
         script_xy.set_gIn(gIn);
         try {
-            RSUtils.forEach(this, TEST_ID_XY, mOut);
+            forEach(TEST_ID_XY, mOut);
         } catch (RSRuntimeException e) {
         }
         mOut.copyTo(out);
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/InitTest.java b/tests/tests/renderscript/src/android/renderscript/cts/InitTest.java
index ef36927..848c192 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/InitTest.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/InitTest.java
@@ -46,7 +46,7 @@
         mIn.copy1DRangeFrom(0, INPUTSIZE, in);
 
         try {
-            RSUtils.forEach(this, 0, mIn, mOut);
+            forEach(0, mIn, mOut);
         } catch (RSRuntimeException e) {
         }
         mOut.copyTo(out);
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/PowTest.java b/tests/tests/renderscript/src/android/renderscript/cts/PowTest.java
index 09a2e94..ad3d078 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/PowTest.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/PowTest.java
@@ -88,8 +88,8 @@
     }
 
     @Override
-    protected void fillRandom(long seed, int fact, int offset, float[] inArray, int rStride, int rSkip) {
-        RSUtils.genRandom(seed, 32, -16, inArray, rStride, rSkip);
+    protected void fillRandomFloats(long seed, int fact, int offset, float[] inArray) {
+        RSUtils.genRandomFloats(seed, 32, -16, inArray);
     }
 
     public void testPowF32() {
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/PownTest.java b/tests/tests/renderscript/src/android/renderscript/cts/PownTest.java
index c95a294..32308ce 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/PownTest.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/PownTest.java
@@ -82,7 +82,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE];
-        RSUtils.genRandom(0x12345678, 32, 1, -16, n);
+        RSUtils.genRandomInts(0x12345678, 32, -16, n);
         nAlloc.copyFrom(n);
         script_f32.set_n1(nAlloc);
 
@@ -93,7 +93,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE];
-        RSUtils.genRandom(0x12345678, 32, 1, -16, n);
+        RSUtils.genRandomInts(0x12345678, 32, -16, n);
         nAlloc.copyFrom(n);
         script_f32_relaxed.set_n1(nAlloc);
 
@@ -104,7 +104,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_2(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*2];
-        RSUtils.genRandom(0xacdef1, 32, 1, -16, n);
+        RSUtils.genRandomInts(0xacdef1, 32, -16, n);
         nAlloc.copyFrom(n);
         script_f32.set_n2(nAlloc);
 
@@ -115,7 +115,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_2(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*2];
-        RSUtils.genRandom(0xacdef1, 32, 1, -16, n);
+        RSUtils.genRandomInts(0xacdef1, 32, -16, n);
         nAlloc.copyFrom(n);
         script_f32_relaxed.set_n2(nAlloc);
 
@@ -126,7 +126,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_3(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*4];
-        RSUtils.genRandom(0xa123f1, 32, 1, -16, n, 4, 1);
+        RSUtils.genRandomInts(0xa123f1, 32, -16, n);
         nAlloc.copyFrom(n);
         script_f32.set_n3(nAlloc);
 
@@ -137,7 +137,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_3(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*4];
-        RSUtils.genRandom(0xa123f1, 32, 1, -16, n, 4, 1);
+        RSUtils.genRandomInts(0xa123f1, 32, -16, n);
         nAlloc.copyFrom(n);
         script_f32_relaxed.set_n3(nAlloc);
 
@@ -148,7 +148,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_4(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*4];
-        RSUtils.genRandom(0x4323ca, 32, 1, -16, n);
+        RSUtils.genRandomInts(0x4323ca, 32, -16, n);
         nAlloc.copyFrom(n);
         script_f32.set_n4(nAlloc);
 
@@ -159,7 +159,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_4(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*4];
-        RSUtils.genRandom(0x4323ca, 32, 1, -16, n);
+        RSUtils.genRandomInts(0x4323ca, 32, -16, n);
         nAlloc.copyFrom(n);
         script_f32_relaxed.set_n4(nAlloc);
 
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/PowrTest.java b/tests/tests/renderscript/src/android/renderscript/cts/PowrTest.java
index f10995b..cebbe24 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/PowrTest.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/PowrTest.java
@@ -88,8 +88,8 @@
     }
 
     @Override
-    protected void fillRandom(long seed, int fact, int offset, float[] inArray, int rStride, int rSkip) {
-        RSUtils.genRandom(seed, 64, 0, inArray, rStride, rSkip);
+    protected void fillRandomFloats(long seed, int fact, int offset, float[] inArray) {
+        RSUtils.genRandomFloats(seed, 64, 0, inArray);
     }
 
     public void testPowrF32() {
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/RSBaseCompute.java b/tests/tests/renderscript/src/android/renderscript/cts/RSBaseCompute.java
index d68e628..d7759f1 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/RSBaseCompute.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/RSBaseCompute.java
@@ -89,7 +89,7 @@
                                 int offset, int rStride, int rSkip, int refStride, int outStride,
                                 int inStride, int skip, int ulp) {
         float[] inArray = makeInArray(INPUTSIZE * inStride);
-        fillRandom(seed, fact, offset, inArray, rStride, rSkip);
+        fillRandomFloats(seed, fact, offset, inArray);
         float[] refArray = getRefArray(inArray, INPUTSIZE, inStride, skip);
 
         Allocation mAllocationIn = setInAlloc(inElement);
@@ -97,7 +97,7 @@
 
         Allocation mAllocationOut = setOutAlloc(outElement);
         try {
-            RSUtils.forEach(this, testid, mAllocationIn, mAllocationOut);
+            forEach(testid, mAllocationIn, mAllocationOut);
         } catch (RSRuntimeException e) {
             Log.e("RenderscriptCTS", "Caught RSRuntimeException: " +
                   e.getMessage());
@@ -173,8 +173,8 @@
         return new float[size];
     }
 
-    protected void fillRandom(long seed, int fact, int offset, float[] inArray, int rStride, int rSkip) {
-        RSUtils.genRandom(seed, fact, offset, inArray, rStride, rSkip);
+    protected void fillRandomFloats(long seed, int fact, int offset, float[] inArray) {
+        RSUtils.genRandomFloats(seed, fact, offset, inArray);
     }
 
     protected void fillInAlloc(Allocation mIn, float[] inArray) {
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/RSUtils.java b/tests/tests/renderscript/src/android/renderscript/cts/RSUtils.java
index 8c81e3d..d3fb5d0 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/RSUtils.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/RSUtils.java
@@ -27,65 +27,23 @@
  */
 public class RSUtils {
 
-    public static void genRandom(long seed, int factor, int offset, float array[]) {
+    /**
+     * Fills the array with random floats.  Values will be: offset + number between 0 and max.
+     */
+    public static void genRandomFloats(long seed, int max, int offset, float array[]) {
         Random r = new Random(seed);
         for (int i = 0; i < array.length; i++) {
-            array[i] = r.nextFloat() * factor + offset;
+            array[i] = r.nextFloat() * max + offset;
         }
     }
 
-    public static void genRandom(long seed, int factor, int offset, float array[],
-            int stride, int skip) {
-        Random r = new Random(seed);
-        for (int i = 0; i < array.length / stride; i++) {
-            for (int j = 0; j < stride; j++) {
-                if (j >= stride - skip)
-                    array[i * stride + j] = 0;
-                else
-                    array[i * stride + j] = r.nextFloat() * factor + offset;
-            }
-        }
-    }
-
-    public static void genRandom(long seed, int max, int factor, int offset, int array[]) {
+    /**
+     * Fills the array with random ints.  Values will be: offset + number between 0 and max (exclusive).
+     */
+    public static void genRandomInts(long seed, int max, int offset, int array[]) {
         Random r = new Random(seed);
         for (int i = 0; i < array.length; i++) {
-            array[i] = (r.nextInt(max) * factor + offset);
+            array[i] = (r.nextInt(max) + offset);
         }
     }
-
-    public static void genRandom(long seed, int factor, int offset, int array[],
-            int stride, int skip) {
-        Random r = new Random(seed);
-        for (int i = 0; i < array.length / stride; i++) {
-            for (int j = 0; j < stride; j++) {
-                if (j >= stride - skip)
-                    array[i * stride + j] = 0;
-                else
-                    array[i * stride + j] = r.nextInt() * factor + offset;
-            }
-        }
-    }
-
-    public static void genRandom(long seed, int max, int factor, int offset, int array[],
-            int stride, int skip) {
-        Random r = new Random(seed);
-        for (int i = 0; i < array.length / stride; i++) {
-            for (int j = 0; j < stride; j++) {
-                if (j >= stride - skip)
-                    array[i * stride + j] = 0;
-                else
-                    array[i * stride + j] = r.nextInt(max) * factor + offset;
-            }
-        }
-    }
-
-    public static void forEach(RSBaseCompute base, int testId, Allocation in) throws RSRuntimeException {
-        base.forEach(testId, in);
-    }
-
-    public static void forEach(RSBaseCompute base, int testId, Allocation in, Allocation out)
-            throws RSRuntimeException {
-        base.forEach(testId, in,out);
-    }
 }
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/RootnTest.java b/tests/tests/renderscript/src/android/renderscript/cts/RootnTest.java
index 8301ad5..2c447bb 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/RootnTest.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/RootnTest.java
@@ -80,7 +80,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE];
-        RSUtils.genRandom(0x12345678, 32, 1, 1, n);
+        RSUtils.genRandomInts(0x12345678, 32, 1, n);
         nAlloc.copyFrom(n);
         script_f32.set_n1(nAlloc);
 
@@ -91,7 +91,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE];
-        RSUtils.genRandom(0x12345678, 32, 1, 1, n);
+        RSUtils.genRandomInts(0x12345678, 32, 1, n);
         nAlloc.copyFrom(n);
         script_f32_relaxed.set_n1(nAlloc);
 
@@ -103,7 +103,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_2(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*2];
-        RSUtils.genRandom(0xacdef1, 32, 1, 1, n);
+        RSUtils.genRandomInts(0xacdef1, 32, 1, n);
         nAlloc.copyFrom(n);
         script_f32.set_n2(nAlloc);
 
@@ -114,7 +114,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_2(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*2];
-        RSUtils.genRandom(0xacdef1, 32, 1, 1, n);
+        RSUtils.genRandomInts(0xacdef1, 32, 1, n);
         nAlloc.copyFrom(n);
         script_f32_relaxed.set_n2(nAlloc);
 
@@ -126,7 +126,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_3(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*4];
-        RSUtils.genRandom(0xa123f1, 32, 1, 1, n, 4, 1);
+        RSUtils.genRandomInts(0xa123f1, 32, 1, n);
         nAlloc.copyFrom(n);
         script_f32.set_n3(nAlloc);
 
@@ -137,7 +137,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_3(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*4];
-        RSUtils.genRandom(0xa123f1, 32, 1, 1, n, 4, 1);
+        RSUtils.genRandomInts(0xa123f1, 32, 1, n);
         nAlloc.copyFrom(n);
         script_f32_relaxed.set_n3(nAlloc);
 
@@ -148,7 +148,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_4(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*4];
-        RSUtils.genRandom(0x4323ca, 32, 1, 1, n);
+        RSUtils.genRandomInts(0x4323ca, 32, 1, n);
         nAlloc.copyFrom(n);
         script_f32.set_n4(nAlloc);
 
@@ -159,7 +159,7 @@
         Allocation nAlloc = Allocation.createSized(mRS, Element.I32_4(mRS), INPUTSIZE);
 
         n = new int[INPUTSIZE*4];
-        RSUtils.genRandom(0x4323ca, 32, 1, 1, n);
+        RSUtils.genRandomInts(0x4323ca, 32, 1, n);
         nAlloc.copyFrom(n);
         script_f32_relaxed.set_n4(nAlloc);
 
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/RsPackColorTo8888Test.java b/tests/tests/renderscript/src/android/renderscript/cts/RsPackColorTo8888Test.java
index 0b008a7..edff5b9 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/RsPackColorTo8888Test.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/RsPackColorTo8888Test.java
@@ -72,10 +72,10 @@
         float[] inArray = new float[INPUTSIZE * 4];
         byte[] outArray = new byte[INPUTSIZE * 4];
         byte[] refArray = new byte[INPUTSIZE * 4];
-        RSUtils.genRandom(seed, 1, 0, inArray, 4, 1);
+        RSUtils.genRandomFloats(seed, 1, 0, inArray);
         mAllocationIn.copy1DRangeFrom(0, INPUTSIZE, inArray);
         try {
-            RSUtils.forEach(this, testId, mAllocationIn, mAllocationOut);
+            forEach(testId, mAllocationIn, mAllocationOut);
         } catch (RSRuntimeException e) {
         }
         mAllocationOut.copyTo(outArray);
@@ -99,10 +99,10 @@
         float[] inArray = new float[INPUTSIZE * 4];
         byte[] outArray = new byte[INPUTSIZE * 4];
         byte[] refArray = new byte[INPUTSIZE * 4];
-        RSUtils.genRandom(seed, 1, 0, inArray);
+        RSUtils.genRandomFloats(seed, 1, 0, inArray);
         mAllocationIn.copy1DRangeFrom(0, INPUTSIZE, inArray);
         try {
-            RSUtils.forEach(this, testId, mAllocationIn, mAllocationOut);
+            forEach(testId, mAllocationIn, mAllocationOut);
         } catch (RSRuntimeException e) {
         }
         mAllocationOut.copyTo(outArray);
diff --git a/tests/tests/renderscript/src/android/renderscript/cts/RsUnpackColor8888Test.java b/tests/tests/renderscript/src/android/renderscript/cts/RsUnpackColor8888Test.java
index 4df1169..3ebbee1 100644
--- a/tests/tests/renderscript/src/android/renderscript/cts/RsUnpackColor8888Test.java
+++ b/tests/tests/renderscript/src/android/renderscript/cts/RsUnpackColor8888Test.java
@@ -44,7 +44,7 @@
 
         mAllocationIn.copy1DRangeFrom(0, INPUTSIZE, inArray);
         try {
-            RSUtils.forEach(this, 0, mAllocationIn, mAllocationOut);
+            forEach(0, mAllocationIn, mAllocationOut);
         } catch (RSRuntimeException e) {
         }
         mAllocationOut.copyTo(outArray);