text: /*
   * Copyright (C) 2010 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #define LOG_TAG "Surface"
  #include <utils/Log.h>
  
  #include <android/native_window_jni.h>
  #include <surfaceflinger/Surface.h>
  #include <android_runtime/android_view_Surface.h>
  #include <android_runtime/android_graphics_SurfaceTexture.h>
  
  using namespace android;
  
  ANativeWindow* ANativeWindow_fromSurface(JNIEnv* env, jobject surface) {
      sp<ANativeWindow> win = android_Surface_getNativeWindow(env, surface);
      if (win != NULL) {
          win->incStrong((void*)ANativeWindow_acquire);
      }
      return win.get();
  }
  
  ANativeWindow* ANativeWindow_fromSurfaceTexture(JNIEnv* env, jobject surfaceTexture) {
      sp<ANativeWindow> win = android_SurfaceTexture_getNativeWindow(env, surfaceTexture);
      if (win != NULL) {
          win->incStrong((void*)ANativeWindow_acquire);
      }
      return win.get();
  }
  
  void ANativeWindow_acquire(ANativeWindow* window) {
      window->incStrong((void*)ANativeWindow_acquire);
  }
  
  void ANativeWindow_release(ANativeWindow* window) {
      window->decStrong((void*)ANativeWindow_acquire);
  }
  
  static int32_t getWindowProp(ANativeWindow* window, int what) {
      int value;
      int res = window->query(window, what, &value);
      return res < 0 ? res : value;
  }
  
  int32_t ANativeWindow_getWidth(ANativeWindow* window) {
      return getWindowProp(window, NATIVE_WINDOW_WIDTH);
  }
  
  int32_t ANativeWindow_getHeight(ANativeWindow* window) {
      return getWindowProp(window, NATIVE_WINDOW_HEIGHT);
  }
  
  int32_t ANativeWindow_getFormat(ANativeWindow* window) {
      return getWindowProp(window, NATIVE_WINDOW_FORMAT);
  }
  
  int32_t ANativeWindow_setBuffersGeometry(ANativeWindow* window, int32_t width,
          int32_t height, int32_t format) {
      int32_t err = native_window_set_buffers_geometry(window, width, height, format);
      if (!err) {
          int mode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
          if (width && height) {
              mode = NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW;
          }
          err = native_window_set_scaling_mode(window, mode);
      }
      return err;
  }
  
  int32_t ANativeWindow_lock(ANativeWindow* window, ANativeWindow_Buffer* outBuffer,
          ARect* inOutDirtyBounds) {
      return window->perform(window, NATIVE_WINDOW_LOCK, outBuffer, inOutDirtyBounds);
  }
  
  int32_t ANativeWindow_unlockAndPost(ANativeWindow* window) {
      return window->perform(window, NATIVE_WINDOW_UNLOCK_AND_POST);
  }
  