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Unified Diff: platform_tools/android/apps/canvasproof/src/main/java/org/skia/canvasproof/GaneshPictureRenderer.java

Issue 1258123004: android/apps: Add CanvasProof App; (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: 2015-09-04 (Friday) 13:29:02 EDT Created 5 years, 3 months ago
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Index: platform_tools/android/apps/canvasproof/src/main/java/org/skia/canvasproof/GaneshPictureRenderer.java
diff --git a/platform_tools/android/apps/canvasproof/src/main/java/org/skia/canvasproof/GaneshPictureRenderer.java b/platform_tools/android/apps/canvasproof/src/main/java/org/skia/canvasproof/GaneshPictureRenderer.java
new file mode 100644
index 0000000000000000000000000000000000000000..01c6dc3f25b151dd64a5d3adb50be3e719b156bd
--- /dev/null
+++ b/platform_tools/android/apps/canvasproof/src/main/java/org/skia/canvasproof/GaneshPictureRenderer.java
@@ -0,0 +1,120 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+// AJAR=$ANDROID_SDK_ROOT/platforms/android-19/android.jar
+// SRC=platform_tools/android/apps/canvasproof/src/main
+// javac -classpath $AJAR $SRC/java/org/skia/canvasproof/GaneshPictureRenderer.java
+// javah -classpath $AJAR:$SRC/java -d $SRC/jni org.skia.canvasproof.GaneshPictureRenderer
+
+package org.skia.canvasproof;
+
+import android.app.Activity;
+import android.graphics.Rect;
+import android.opengl.GLSurfaceView;
+import android.util.Log;
+import javax.microedition.khronos.egl.EGLConfig;
+import javax.microedition.khronos.opengles.GL10;
+
+public class GaneshPictureRenderer implements GLSurfaceView.Renderer {
+ private static final String TAG = "GaneshPictureRenderer";
+ private long picturePtr;
+ private long contextPtr;
+ private float scale;
+ private int width;
+ private int height;
+ private GLSurfaceView view;
+
+ GaneshPictureRenderer() {
+ try {
+ System.loadLibrary("skia_android");
+ System.loadLibrary("canvasproof");
+ } catch (java.lang.Error e) {
+ Log.e(TAG, "System.loadLibrary error", e);
+ return;
+ }
+ this.scale = 1;
+ }
+ public GLSurfaceView makeView(Activity activity) {
+ this.view = new GLSurfaceView(activity);
+ this.view.setEGLConfigChooser(8, 8, 8, 8, 0, 8);
+ this.view.setEGLContextClientVersion(2);
+ this.view.setRenderer(this);
+ this.view.setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY);
+ return this.view;
+ }
+ static public Rect cullRect(long picturePtr) {
+ Rect rect = new Rect();
+ try {
+ GaneshPictureRenderer.GetCullRect(rect, picturePtr);
+ } catch (UnsatisfiedLinkError e) {
+ Log.e(TAG, "GetCullRect failed", e);
+ }
+ return rect;
+ }
+ public void setPicture(long picturePtr) {
+ this.picturePtr = picturePtr;
+ this.view.requestRender();
+ }
+ public void setScale(float s) { this.scale = s; }
+
+ public void releaseResources() {
+ if (this.contextPtr != 0) {
+ try {
+ GaneshPictureRenderer.CleanUp(this.contextPtr);
+ } catch (UnsatisfiedLinkError e) {
+ Log.e(TAG, "CleanUp failed", e);
+ }
+ }
+ this.contextPtr = 0;
+ }
+
+ private void createContext() {
+ try {
+ this.contextPtr = GaneshPictureRenderer.Ctor();
+ } catch (UnsatisfiedLinkError e) {
+ Log.e(TAG, "Ctor failed", e);
+ }
+ }
+
+ @Override
+ public void onSurfaceCreated(GL10 gl, EGLConfig c) {
+ this.releaseResources();
+ this.createContext();
+ }
+ @Override
+ public void onDrawFrame(GL10 gl) {
+ if (this.contextPtr == 0) {
+ this.createContext();
+ }
+ if (this.width > 0 && this.height > 0 &&
+ this.contextPtr != 0 && this.picturePtr != 0) {
+ try {
+ GaneshPictureRenderer.DrawThisFrame(
+ this.width, this.height, this.scale,
+ this.contextPtr, this.picturePtr);
+ } catch (UnsatisfiedLinkError e) {
+ Log.e(TAG, "DrawThisFrame failed", e);
+ }
+ }
+ }
+ @Override
+ public void onSurfaceChanged(GL10 gl, int w, int h) {
+ this.width = w;
+ this.height = h;
+ }
+ @Override
+ public void finalize() throws Throwable {
+ super.finalize();
+ this.releaseResources();
+ }
+
+ // Make the native functions static to simplify JNI interaction.
+ private static native void DrawThisFrame(int w, int h, float s, long pr, long pc);
+ private static native long Ctor();
+ private static native void CleanUp(long p);
+ private static native void GetCullRect(Rect r, long picture);
+}

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