Update Animation Plugin to use OpenGL.

Change-Id: Ib20fa69422a0dae804c95f71b70a65027ad8e9cf
diff --git a/samples/BrowserPlugin/jni/animation/AnimationPlugin.cpp b/samples/BrowserPlugin/jni/animation/AnimationPlugin.cpp
index 6e93fb6..58999ad 100644
--- a/samples/BrowserPlugin/jni/animation/AnimationPlugin.cpp
+++ b/samples/BrowserPlugin/jni/animation/AnimationPlugin.cpp
@@ -33,6 +33,7 @@
 extern ANPCanvasInterfaceV0    gCanvasI;
 extern ANPPaintInterfaceV0     gPaintI;
 extern ANPPathInterfaceV0      gPathI;
+extern ANPSystemInterfaceV0    gSystemI;
 extern ANPWindowInterfaceV0    gWindowI;
 
 static uint16_t rnd16(float x, int inset) {
@@ -43,118 +44,74 @@
     return static_cast<uint16_t>(ix);
 }
 
-static void inval(NPP instance, const ANPRectF& r, bool doAA) {
-    const int inset = doAA ? -1 : 0;
-
-    NPRect inval;
-    inval.left = rnd16(r.left, inset);
-    inval.top = rnd16(r.top, inset);
-    inval.right = rnd16(r.right, -inset);
-    inval.bottom = rnd16(r.bottom, -inset);
-    browser->invalidaterect(instance, &inval);
-}
-
-static void bounce(float* x, float* dx, const float max) {
-    *x += *dx;
-    if (*x < 0) {
-        *x = 0;
-        if (*dx < 0) {
-            *dx = -*dx;
-        }
-    } else if (*x > max) {
-        *x = max;
-        if (*dx > 0) {
-            *dx = -*dx;
-        }
-    }
-}
 ///////////////////////////////////////////////////////////////////////////////
 
-BallAnimation::BallAnimation(NPP inst) : SubPlugin(inst) {
-    m_x = m_y = 0;
-    m_dx = 7 * SCALE;
-    m_dy = 5 * SCALE;
-
-    memset(&m_oval, 0, sizeof(m_oval));
-
-    m_paint = gPaintI.newPaint();
-    gPaintI.setFlags(m_paint, gPaintI.getFlags(m_paint) | kAntiAlias_ANPPaintFlag);
-    gPaintI.setColor(m_paint, 0xFFFF0000);
-
+BallAnimation::BallAnimation(NPP inst) : SurfaceSubPlugin(inst) {
     //register for touch events
     ANPEventFlags flags = kTouch_ANPEventFlag;
     NPError err = browser->setvalue(inst, kAcceptEvents_ANPSetValue, &flags);
     if (err != NPERR_NO_ERROR) {
         gLogI.log(kError_ANPLogType, "Error selecting input events.");
     }
+
+    gLogI.log(kError_ANPLogType, "Starting Rendering Thread");
+
+    //start a thread and do your drawing there
+    m_renderingThread = new AnimationThread(inst);
+    m_renderingThread->incStrong(inst);
+    m_renderingThread->run("AnimationThread");
 }
 
 BallAnimation::~BallAnimation() {
-    gPaintI.deletePaint(m_paint);
+    m_renderingThread->requestExitAndWait();
+    destroySurface();
 }
 
 bool BallAnimation::supportsDrawingModel(ANPDrawingModel model) {
-    return (model == kBitmap_ANPDrawingModel);
+    return (model == kOpenGL_ANPDrawingModel);
 }
 
-void BallAnimation::drawPlugin(const ANPBitmap& bitmap, const ANPRectI& clip) {
+jobject BallAnimation::getSurface() {
 
-    // create a canvas
-    ANPCanvas* canvas = gCanvasI.newCanvas(&bitmap);
-
-    // clip the canvas
-    ANPRectF clipR;
-    clipR.left = clip.left;
-    clipR.top = clip.top;
-    clipR.right = clip.right;
-    clipR.bottom = clip.bottom;
-    gCanvasI.clipRect(canvas, &clipR);
-
-    // setup variables
-    PluginObject *obj = (PluginObject*) inst()->pdata;
-    const float OW = 20;
-    const float OH = 20;
-    const int W = obj->window->width;
-    const int H = obj->window->height;
-
-    // paint the canvas (using the path API)
-    gCanvasI.drawColor(canvas, 0xFFFFFFFF);
-    {
-        ANPPath* path = gPathI.newPath();
-
-        float cx = W * 0.5f;
-        float cy = H * 0.5f;
-        gPathI.moveTo(path, 0, 0);
-        gPathI.quadTo(path, cx, cy, W, 0);
-        gPathI.quadTo(path, cx, cy, W, H);
-        gPathI.quadTo(path, cx, cy, 0, H);
-        gPathI.quadTo(path, cx, cy, 0, 0);
-
-        gPaintI.setColor(m_paint, 0xFF0000FF);
-        gCanvasI.drawPath(canvas, path, m_paint);
-
-        ANPRectF bounds;
-        memset(&bounds, 0, sizeof(bounds));
-        gPathI.getBounds(path, &bounds);
-        gPathI.deletePath(path);
+    if (m_surface) {
+        return m_surface;
     }
 
-    // draw the oval
-    inval(inst(), m_oval, true);  // inval the old
-    m_oval.left = m_x;
-    m_oval.top = m_y;
-    m_oval.right = m_x + OW;
-    m_oval.bottom = m_y + OH;
-    inval(inst(), m_oval, true);  // inval the new
-    gPaintI.setColor(m_paint, 0xFFFF0000);
-    gCanvasI.drawOval(canvas, &m_oval, m_paint);
+    // load the appropriate java class and instantiate it
+    JNIEnv* env = NULL;
+    if (gVM->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
+        gLogI.log(kError_ANPLogType, " ---- getSurface: failed to get env");
+        return NULL;
+    }
 
-    // update the coordinates of the oval
-    bounce(&m_x, &m_dx, obj->window->width - OW);
-    bounce(&m_y, &m_dy, obj->window->height - OH);
+    const char* className = "com.android.sampleplugin.AnimationSurface";
+    jclass fullScreenClass = gSystemI.loadJavaClass(inst(), className);
 
-    // delete the canvas
-    gCanvasI.deleteCanvas(canvas);
+    if(!fullScreenClass) {
+        gLogI.log(kError_ANPLogType, " ---- getSurface: failed to load class");
+        return NULL;
+    }
+
+    jmethodID constructor = env->GetMethodID(fullScreenClass, "<init>", "(Landroid/content/Context;)V");
+    jobject fullScreenSurface = env->NewObject(fullScreenClass, constructor, m_context);
+
+    if(!fullScreenSurface) {
+        gLogI.log(kError_ANPLogType, " ---- getSurface: failed to construct object");
+        return NULL;
+    }
+
+    gLogI.log(kError_ANPLogType, " ---- object %p", fullScreenSurface);
+
+    m_surface = env->NewGlobalRef(fullScreenSurface);
+    return m_surface;
+}
+
+void BallAnimation::destroySurface() {
+    JNIEnv* env = NULL;
+    if (m_surface && gVM->GetEnv((void**) &env, JNI_VERSION_1_4) == JNI_OK) {
+        env->DeleteGlobalRef(m_surface);
+        m_surface = NULL;
+    }
 }
 
 void BallAnimation::showEntirePluginOnScreen() {
@@ -179,17 +136,26 @@
     switch (evt->eventType) {
         case kDraw_ANPEventType:
             switch (evt->data.draw.model) {
-                case kBitmap_ANPDrawingModel:
-                    drawPlugin(evt->data.draw.data.bitmap, evt->data.draw.clip);
+                case kOpenGL_ANPDrawingModel: {
+                    //send the width and height to the rendering thread
+                    int width = evt->data.draw.data.surface.width;
+                    int height = evt->data.draw.data.surface.height;
+                    gLogI.log(kError_ANPLogType, "New Dimensions (%d,%d)", width, height);
+                    m_renderingThread->setDimensions(width, height);
                     return 1;
+                }
                 default:
-                    break;   // unknown drawing model
+                    return 0;   // unknown drawing model
             }
         case kTouch_ANPEventType:
              if (kDown_ANPTouchAction == evt->data.touch.action) {
                  showEntirePluginOnScreen();
              }
-             return 1;
+            else if (kDoubleTap_ANPTouchAction == evt->data.touch.action) {
+                browser->geturl(inst(), "javascript:alert('Detected double tap event.')", 0);
+                gWindowI.requestFullScreen(inst());
+            }
+            return 1;
         default:
             break;
     }
diff --git a/samples/BrowserPlugin/jni/animation/AnimationPlugin.h b/samples/BrowserPlugin/jni/animation/AnimationPlugin.h
index 4a5b4e8..870b67c 100644
--- a/samples/BrowserPlugin/jni/animation/AnimationPlugin.h
+++ b/samples/BrowserPlugin/jni/animation/AnimationPlugin.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008, The Android Open Source Project
+ * Copyright 2010, The Android Open Source Project
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -24,29 +24,25 @@
  */
 
 #include "PluginObject.h"
+#include "AnimationThread.h"
 
 #ifndef pluginGraphics__DEFINED
 #define pluginGraphics__DEFINED
 
-class BallAnimation : public SubPlugin {
+class BallAnimation : public SurfaceSubPlugin {
 public:
     BallAnimation(NPP inst);
     virtual ~BallAnimation();
     virtual bool supportsDrawingModel(ANPDrawingModel);
     virtual int16_t handleEvent(const ANPEvent* evt);
+
+    virtual jobject getSurface();
 private:
-    void drawPlugin(const ANPBitmap& bitmap, const ANPRectI& clip);
     void showEntirePluginOnScreen();
+    void destroySurface();
 
-    float m_x;
-    float m_y;
-    float m_dx;
-    float m_dy;
-
-    ANPRectF    m_oval;
-    ANPPaint*   m_paint;
-
-    static const float SCALE = 0.1;
+    jobject          m_surface;
+    AnimationThread* m_renderingThread;
 };
 
 #endif // pluginGraphics__DEFINED
diff --git a/samples/BrowserPlugin/jni/animation/AnimationThread.cpp b/samples/BrowserPlugin/jni/animation/AnimationThread.cpp
new file mode 100644
index 0000000..9e6342d
--- /dev/null
+++ b/samples/BrowserPlugin/jni/animation/AnimationThread.cpp
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2010, The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "AnimationThread.h"
+#include "ANPOpenGL_npapi.h"
+
+#include <EGL/egl.h>
+#include <GLES2/gl2.h>
+#include <utils/SystemClock.h>
+
+extern ANPLogInterfaceV0       gLogI;
+extern ANPOpenGLInterfaceV0    gOpenGLI;
+
+AnimationThread::AnimationThread(NPP npp) : RenderingThread(npp) {
+    m_counter = 0;
+    m_lastPrintTime = android::uptimeMillis();
+    m_executionTime = 0;
+    m_idleTime = 0;
+
+    m_x = m_y = 0;
+    m_dx = 0;
+    m_dy = 0;
+
+    memset(&m_oval, 0, sizeof(m_oval));
+
+    m_paint = new SkPaint;
+    m_paint->setAntiAlias(true);
+
+    m_bitmap = constructBitmap(DEFAULT_WIDTH, DEFAULT_HEIGHT);
+    m_canvas = new SkCanvas(*m_bitmap);
+
+    m_startExecutionTime = 0;
+    m_startTime = android::uptimeMillis();
+}
+
+AnimationThread::~AnimationThread() {
+    delete m_paint;
+    delete m_canvas;
+    delete m_bitmap;
+}
+
+SkBitmap* AnimationThread::constructBitmap(int width, int height) {
+    SkBitmap* bitmap = new SkBitmap;
+    bitmap->setConfig(SkBitmap::kARGB_8888_Config, width, height);
+    bitmap->allocPixels();
+    bitmap->eraseColor(0x00000000);
+    return bitmap;
+}
+
+static void bounce(float* x, float* dx, const float max) {
+    *x += *dx;
+    if (*x < 0) {
+        *x = 0;
+        if (*dx < 0) {
+            *dx = -*dx;
+        }
+    } else if (*x > max) {
+        *x = max;
+        if (*dx > 0) {
+            *dx = -*dx;
+        }
+    }
+}
+
+bool AnimationThread::threadLoop() {
+
+    m_startIdleTime = android::uptimeMillis();
+
+    ANPTextureInfo textureInfo = gOpenGLI.lockTexture(m_npp);
+    GLuint textureId = textureInfo.textureId;
+
+    m_idleTime += android::uptimeMillis() - m_startIdleTime;
+    m_startExecutionTime = android::uptimeMillis();
+
+    int width, height;
+    getDimensions(width, height);
+
+    if (width <= 0)
+        width = DEFAULT_WIDTH;
+    if (height <= 0)
+        height = DEFAULT_HEIGHT;
+
+    if (m_bitmap->width() != width || m_bitmap->height() != height) {
+        delete m_canvas;
+        delete m_bitmap;
+        m_bitmap = constructBitmap(width, height);
+        m_canvas = new SkCanvas(*m_bitmap);
+
+        // change the ball's speed to match the size
+        m_dx = width * .005f;
+        m_dy = height * .007f;
+    }
+
+    // setup variables
+    const float OW = width * .125f;
+    const float OH = height * .125f;
+
+    // clear the old oval
+    m_bitmap->eraseColor(0x880000FF);
+
+    // update the coordinates of the oval
+    bounce(&m_x, &m_dx, width - OW);
+    bounce(&m_y, &m_dy, height - OH);
+
+    // draw the new oval
+    m_oval.fLeft = m_x;
+    m_oval.fTop = m_y;
+    m_oval.fRight = m_x + OW;
+    m_oval.fBottom = m_y + OH;
+    m_paint->setColor(0xAAFF0000);
+    m_canvas->drawOval(m_oval, *m_paint);
+
+    if (textureInfo.width == width && textureInfo.height == height) {
+        updateTextureWithBitmap(textureId, *m_bitmap);
+    } else {
+        createTextureWithBitmap(textureId, *m_bitmap);
+        textureInfo.width = width;
+        textureInfo.height = height;
+        textureInfo.internalFormat = GL_RGBA;
+    }
+
+    m_executionTime += android::uptimeMillis() - m_startExecutionTime;
+    m_counter++;
+
+    gOpenGLI.releaseTexture(m_npp, &textureInfo);
+
+    if (android::uptimeMillis() - m_lastPrintTime > 5000) {
+        float fps = m_counter / ((android::uptimeMillis() - m_startTime) / 1000);
+        float spf = ((android::uptimeMillis() - m_startTime)) / m_counter;
+        float lpf = (m_idleTime) / m_counter;
+        float exe = (m_executionTime) / m_counter;
+        gLogI.log(kError_ANPLogType, "TEXT: counter(%d) fps(%f) spf(%f) lock(%f) execution(%f)\n", (int)m_counter, fps, spf, lpf, exe);
+        m_lastPrintTime = android::uptimeMillis();
+
+        m_counter = 0;
+        m_executionTime = 0;
+        m_idleTime = 0;
+        m_startExecutionTime = 0;
+        m_startTime = android::uptimeMillis();
+    }
+
+    return true;
+}
diff --git a/samples/BrowserPlugin/jni/animation/AnimationThread.h b/samples/BrowserPlugin/jni/animation/AnimationThread.h
new file mode 100644
index 0000000..4f74e94
--- /dev/null
+++ b/samples/BrowserPlugin/jni/animation/AnimationThread.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2010, The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "RenderingThread.h"
+#include "SkCanvas.h"
+#include "SkBitmap.h"
+#include "SkRect.h"
+#include "SkPaint.h"
+
+#ifndef AnimationThread__DEFINED
+#define AnimationThread__DEFINED
+
+class AnimationThread : public RenderingThread {
+public:
+    AnimationThread(NPP npp);
+    virtual ~AnimationThread();
+
+private:
+    virtual bool threadLoop();
+    SkBitmap* constructBitmap(int width, int height);
+
+    float m_counter;
+
+    int64_t m_lastPrintTime;
+    int64_t m_executionTime;
+    int64_t m_idleTime;
+    int64_t m_startTime;
+    int64_t m_startExecutionTime;
+    int64_t m_startIdleTime;
+
+    float m_x;
+    float m_y;
+    float m_dx;
+    float m_dy;
+
+    SkRect m_oval;
+    SkPaint* m_paint;
+    SkBitmap* m_bitmap;
+    SkCanvas* m_canvas;
+
+    static const unsigned int DEFAULT_WIDTH = 400;
+    static const unsigned int DEFAULT_HEIGHT = 400;
+};
+
+
+
+#endif // AnimationThread__DEFINED