1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.gallery3d.glrenderer;
18
19
20// Texture is a rectangular image which can be drawn on GLCanvas.
21// The isOpaque() function gives a hint about whether the texture is opaque,
22// so the drawing can be done faster.
23//
24// This is the current texture hierarchy:
25//
26// Texture
27// -- ColorTexture
28// -- FadeInTexture
29// -- BasicTexture
30//    -- UploadedTexture
31//       -- BitmapTexture
32//       -- Tile
33//       -- ResourceTexture
34//          -- NinePatchTexture
35//       -- CanvasTexture
36//          -- StringTexture
37//
38public interface Texture {
39    public int getWidth();
40    public int getHeight();
41    public void draw(GLCanvas canvas, int x, int y);
42    public void draw(GLCanvas canvas, int x, int y, int w, int h);
43    public boolean isOpaque();
44}
45