Update Animation Plugin to use OpenGL.

Change-Id: Ib20fa69422a0dae804c95f71b70a65027ad8e9cf
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;
+}