Update Android Apps to use gradle

This CL replaces ant with gradle for the task of building APKs.
The primary driver of this change is that it now allow us to
develop and test our apps using Android Studio.
DOCS_PREVIEW= https://skia.org/?cl=1215023017

Review URL: https://codereview.chromium.org/1215023017

1 files changed, 113 insertions, 0 deletions

diff --git a/platform_tools/android/apps/sample_app/src/main/java/com/skia/SkiaSampleRenderer.java b/platform_tools/android/apps/sample_app/src/main/java/com/skia/SkiaSampleRenderer.java
new file mode 100644
index 0000000000..55257094cd
--- /dev/null
+++ b/platform_tools/android/apps/sample_app/src/main/java/com/skia/SkiaSampleRenderer.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+package com.skia;
+
+import android.opengl.GLSurfaceView;
+import android.os.Handler;
+import android.util.Log;
+
+import javax.microedition.khronos.egl.EGLConfig;
+import javax.microedition.khronos.opengles.GL10;
+import javax.microedition.khronos.opengles.GL11;
+
+public class SkiaSampleRenderer implements GLSurfaceView.Renderer {
+
+    private final SkiaSampleView mSampleView;
+    private Handler mHandler = new Handler();
+    private int mMSAASampleCount;
+    private String mCmdLineFlags;
+
+    SkiaSampleRenderer(SkiaSampleView view, String cmdLineFlags) {
+        mSampleView = view;
+        mCmdLineFlags = cmdLineFlags;
+    }
+
+    @Override
+    public void onDrawFrame(GL10 gl) {
+        draw();
+    }
+
+    @Override
+    public void onSurfaceChanged(GL10 gl, int width, int height) {
+        updateSize(width, height);
+    }
+
+    @Override
+    public void onSurfaceCreated(GL10 gl, EGLConfig config) {
+        if (gl instanceof GL11) {
+            int value[] = new int[1];
+            ((GL11) gl).glGetIntegerv(GL11.GL_SAMPLES, value, 0);
+            if (value[0] == 1) {
+                mMSAASampleCount = 0;
+            } else {
+                mMSAASampleCount = value[0];
+            }
+        }
+
+        gl.glClearStencil(0);
+        gl.glClear(GL10.GL_STENCIL_BUFFER_BIT);
+
+        init((SkiaSampleActivity)mSampleView.getContext(), mCmdLineFlags, mMSAASampleCount);
+    }
+
+    // Called by JNI and the view.
+    synchronized public int getMSAASampleCount() {
+        return mMSAASampleCount;
+    }
+
+    // Called by JNI
+    private void startTimer(int ms) {
+        // After the delay, queue an event to the Renderer's thread
+        // to handle the event on the timer queue
+        mHandler.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                mSampleView.queueEvent(new Runnable() {
+                    @Override
+                    public void run() {
+                        serviceQueueTimer();
+                    }
+                });
+            }
+        }, ms);
+    }
+
+    // Called by JNI
+    private void queueSkEvent() {
+        mSampleView.queueEvent(new Runnable() {
+            @Override
+            public void run() {
+                processSkEvent();
+            }
+        });
+    }
+
+    // Called by JNI
+    private void requestRender() {
+        mSampleView.requestRender();
+    }
+
+    native void init(SkiaSampleActivity activity, String flags, int msaaSampleCount);
+    native void term();
+    native void draw();
+    native void updateSize(int w, int h);
+    native void handleClick(int owner, float x, float y, int state);
+    native void showOverview();
+    native void nextSample();
+    native void previousSample();
+    native void goToSample(int position);
+    native void toggleRenderingMode();
+    native void toggleSlideshow();
+    native void toggleFPS();
+    native void toggleTiling();
+    native void toggleBBox();
+    native void processSkEvent();
+    native void serviceQueueTimer();
+    native void saveToPDF();
+    native void postInval();
+}
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