Merge "Making UI a bit more responsive."

tests/RenderScriptTests/PerfTest/src/com/android/perftest/RsBench.java

@@ -95,8 +95,10 @@ public class RsBench extends Activity {
         switch (item.getItemId()) {
             case R.id.benchmark_all:
                 mView.setBenchmarkMode(-1);
+                mView.suspendRendering(false);
                 return true;
             case R.id.benchmark_one:
+                mView.suspendRendering(true);
                 AlertDialog.Builder builder = new AlertDialog.Builder(this);
                 builder.setTitle("Pick a Test");
                 builder.setItems(mView.getTestNames(),
@@ -106,11 +108,13 @@ public class RsBench extends Activity {
                                        "Starting to benchmark: " + mView.getTestNames()[item],
                                        Toast.LENGTH_SHORT).show();
                         mView.setBenchmarkMode(item);
+                        mView.suspendRendering(false);
                     }
                 });
                 builder.show();
                 return true;
             case R.id.debug_mode:
+                mView.suspendRendering(true);
                 AlertDialog.Builder debugBuilder = new AlertDialog.Builder(this);
                 debugBuilder.setTitle("Pick a Test");
                 debugBuilder.setItems(mView.getTestNames(),
@@ -120,6 +124,7 @@ public class RsBench extends Activity {
                                        "Switching to: " + mView.getTestNames()[item],
                                        Toast.LENGTH_SHORT).show();
                         mView.setDebugMode(item);
+                        mView.suspendRendering(false);
                     }
                 });
                 debugBuilder.show();

tests/RenderScriptTests/PerfTest/src/com/android/perftest/RsBenchRS.java

@@ -266,6 +266,10 @@ public class RsBenchRS {
         mScript.invoke_setBenchmarkMode(benchNum);
     }
 
+    public void pause(boolean pause) {
+        mScript.set_gPauseRendering(pause);
+    }
+
     private void initRS() {
 
         mScript = new ScriptC_rsbench(mRS, mRes, R.raw.rsbench);

tests/RenderScriptTests/PerfTest/src/com/android/perftest/RsBenchView.java

@@ -92,6 +92,10 @@ public class RsBenchView extends RSSurfaceView {
         mRender.setBenchmarkMode(benchNum);
     }
 
+    void suspendRendering(boolean pause) {
+        mRender.pause(pause);
+    }
+
     void setDebugMode(int num) {
         mRender.setDebugMode(num);
     }

tests/RenderScriptTests/PerfTest/src/com/android/perftest/rsbench.rs

@@ -51,6 +51,7 @@ typedef struct TestScripts_s {
 TestScripts *gTestScripts;
 
 bool gLoadComplete = false;
+bool gPauseRendering = false;
 
 static float gDt = 0;
 
@@ -257,6 +258,10 @@ int root(void) {
         return 1;
     }
 
+    if (gPauseRendering) {
+        rsgDrawText("Paused", 50, 50);
+        return 30;
+    }
     if (gIsDebugMode) {
         debug();
     } else {