Implement allocation resizing.

Change-Id: Ie38d42419d595cec730a8721cc1321c5edb6b4d6

2 files changed, 27 insertions, 0 deletions

diff --git a/graphics/java/android/renderscript/Allocation.java b/graphics/java/android/renderscript/Allocation.java
index 985d700..2c076b3 100644
--- a/graphics/java/android/renderscript/Allocation.java
+++ b/graphics/java/android/renderscript/Allocation.java
@@ -182,6 +182,24 @@ public class Allocation extends BaseObj {
         mRS.nAllocationRead(mID, d);
     }
 
+    public void resize(int dimX) {
+        if ((mType.getY() > 0)|| (mType.getZ() > 0) || mType.getFaces() || mType.getLOD()) {
+            throw new IllegalStateException("Resize only support for 1D allocations at this time.");
+        }
+        mRS.nAllocationResize1D(mID, dimX);
+    }
+
+    /*
+    public void resize(int dimX, int dimY) {
+        if ((mType.getZ() > 0) || mType.getFaces() || mType.getLOD()) {
+            throw new IllegalStateException("Resize only support for 2D allocations at this time.");
+        }
+        if (mType.getY() == 0) {
+            throw new IllegalStateException("Resize only support for 2D allocations at this time.");
+        }
+        mRS.nAllocationResize2D(mID, dimX, dimY);
+    }
+    */
 
     public class Adapter1D extends BaseObj {
         Adapter1D(int id, RenderScript rs) {
diff --git a/graphics/java/android/renderscript/RenderScript.java b/graphics/java/android/renderscript/RenderScript.java
index 3c0b4e5..0088373 100644
--- a/graphics/java/android/renderscript/RenderScript.java
+++ b/graphics/java/android/renderscript/RenderScript.java
@@ -254,6 +254,15 @@ public class RenderScript {
         return rsnAllocationGetType(mContext, id);
     }
 
+    native void rsnAllocationResize1D(int con, int id, int dimX);
+    synchronized void nAllocationResize1D(int id, int dimX) {
+        rsnAllocationResize1D(mContext, id, dimX);
+    }
+    native void rsnAllocationResize2D(int con, int id, int dimX, int dimY);
+    synchronized void nAllocationResize2D(int id, int dimX, int dimY) {
+        rsnAllocationResize2D(mContext, id, dimX, dimY);
+    }
+
     native int  rsnFileA3DCreateFromAssetStream(int con, int assetStream);
     synchronized int nFileA3DCreateFromAssetStream(int assetStream) {
         return rsnFileA3DCreateFromAssetStream(mContext, assetStream);