Update Animation Plugin to use OpenGL.

Change-Id: Ib20fa69422a0dae804c95f71b70a65027ad8e9cf
diff --git a/samples/BrowserPlugin/jni/RenderingThread.cpp b/samples/BrowserPlugin/jni/RenderingThread.cpp
new file mode 100644
index 0000000..7f267ed
--- /dev/null
+++ b/samples/BrowserPlugin/jni/RenderingThread.cpp
@@ -0,0 +1,142 @@
+/*
+ * 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 "ANPOpenGL_npapi.h"
+
+extern ANPLogInterfaceV0       gLogI;
+extern ANPOpenGLInterfaceV0    gOpenGLI;
+
+RenderingThread::RenderingThread(NPP npp) : android::Thread() {
+    m_npp = npp;
+    m_width = -1;
+    m_height = -1;
+    gLogI.log(kError_ANPLogType, "Created Rendering Thread");
+}
+
+android::status_t RenderingThread::readyToRun() {
+
+    gLogI.log(kError_ANPLogType, "in ready to run");
+
+    EGLContext context = gOpenGLI.acquireContext(m_npp);
+
+    gLogI.log(kError_ANPLogType, "context: %p", context);
+
+    if (context == EGL_NO_CONTEXT) {
+        gLogI.log(kError_ANPLogType, "Unable to create EGLContext for a TextureProducer thread");
+        return android::UNKNOWN_ERROR;
+    }
+    return android::NO_ERROR;
+}
+
+void RenderingThread::setDimensions(int width, int height) {
+    android::Mutex::Autolock lock(m_sync);
+    m_width = width;
+    m_height = height;
+}
+
+void RenderingThread::getDimensions(int& width, int& height) {
+    android::Mutex::Autolock lock(m_sync);
+    width = m_width;
+    height = m_height;
+}
+
+void RenderingThread::printGLString(const char *name, GLenum s) {
+    const char *v = (const char *) glGetString(s);
+    gLogI.log(kError_ANPLogType, "GL %s = %s\n", name, v);
+}
+
+void RenderingThread::checkGlError(const char* op) {
+    for (GLint error = glGetError(); error; error
+            = glGetError()) {
+        gLogI.log(kError_ANPLogType, "after %s() glError (0x%x)\n", op, error);
+    }
+}
+
+GLenum RenderingThread::getInternalFormat(SkBitmap::Config config)
+{
+    switch(config) {
+        case SkBitmap::kA8_Config:
+            return GL_ALPHA;
+        case SkBitmap::kARGB_4444_Config:
+            return GL_RGBA;
+        case SkBitmap::kARGB_8888_Config:
+            return GL_RGBA;
+        case SkBitmap::kRGB_565_Config:
+            return GL_RGB;
+        default:
+            return -1;
+    }
+}
+
+GLenum RenderingThread::getType(SkBitmap::Config config)
+{
+    switch(config) {
+        case SkBitmap::kA8_Config:
+            return GL_UNSIGNED_BYTE;
+        case SkBitmap::kARGB_4444_Config:
+            return GL_UNSIGNED_SHORT_4_4_4_4;
+        case SkBitmap::kARGB_8888_Config:
+            return GL_UNSIGNED_BYTE;
+        case SkBitmap::kIndex8_Config:
+            return -1; // No type for compressed data.
+        case SkBitmap::kRGB_565_Config:
+            return GL_UNSIGNED_SHORT_5_6_5;
+        default:
+            return -1;
+    }
+}
+
+void RenderingThread::createTextureWithBitmap(GLuint texture, SkBitmap& bitmap) {
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+    glBindTexture(GL_TEXTURE_2D, texture);
+    checkGlError("glBindTexture");
+    SkBitmap::Config config = bitmap.getConfig();
+    int internalformat = getInternalFormat(config);
+    int type = getType(config);
+    bitmap.lockPixels();
+    glTexImage2D(GL_TEXTURE_2D, 0, internalformat, bitmap.width(), bitmap.height(),
+                 0, internalformat, type, bitmap.getPixels());
+    bitmap.unlockPixels();
+    checkGlError("glTexImage2D");
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+}
+
+void RenderingThread::updateTextureWithBitmap(GLuint texture, SkBitmap& bitmap) {
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+    glBindTexture(GL_TEXTURE_2D, texture);
+    checkGlError("glBindTexture");
+    SkBitmap::Config config = bitmap.getConfig();
+    int internalformat = getInternalFormat(config);
+    int type = getType(config);
+    bitmap.lockPixels();
+    glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bitmap.width(), bitmap.height(),
+                    internalformat, type, bitmap.getPixels());
+    bitmap.unlockPixels();
+    checkGlError("glTexSubImage2D");
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+}