content: /*
   * 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.
   */
  
  package com.android.gallery3d.glrenderer;
  
  
  // Texture is a rectangular image which can be drawn on GLCanvas.
  // The isOpaque() function gives a hint about whether the texture is opaque,
  // so the drawing can be done faster.
  //
  // This is the current texture hierarchy:
  //
  // Texture
  // -- ColorTexture
  // -- FadeInTexture
  // -- BasicTexture
  //    -- UploadedTexture
  //       -- BitmapTexture
  //       -- Tile
  //       -- ResourceTexture
  //          -- NinePatchTexture
  //       -- CanvasTexture
  //          -- StringTexture
  //
  public interface Texture {
      public int getWidth();
      public int getHeight();
      public void draw(GLCanvas canvas, int x, int y);
      public void draw(GLCanvas canvas, int x, int y, int w, int h);
      public boolean isOpaque();
  }
  