1 package org.newdawn.slick.opengl;
2
3 import java.nio.ByteBuffer;
4
5 import org.lwjgl.BufferUtils;
6
7 import javax.annotation.Nonnull;
8
9 /**
10 * An image data implementation which represents an empty texture
11 *
12 * @author kevin
13 */
14 public class EmptyImageData implements ImageData {
15 /** The width of the data */
16 private final int width;
17 /** The height of the data */
18 private final int height;
19
20 /**
21 * Create an empty image data source
22 *
23 * @param width The width of the source
24 * @param height The height of the source
25 */
26 public EmptyImageData(int width, int height) {
27 this.width = width;
28 this.height = height;
29 }
30
31 /**
32 * @see org.newdawn.slick.opengl.ImageData#getFormat()
33 */
34 @Nonnull
35 public Format getFormat() {
36 return Format.RGBA;
37 }
38
39 /**
40 * @see org.newdawn.slick.opengl.ImageData#getHeight()
41 */
42 public int getHeight() {
43 return height;
44 }
45
46 /**
47 * @see org.newdawn.slick.opengl.ImageData#getImageBufferData()
48 */
49 public ByteBuffer getImageBufferData() {
50 return BufferUtils.createByteBuffer(getTexWidth() * getTexHeight() * 4);
51 }
52
53 /**
54 * @see org.newdawn.slick.opengl.ImageData#getTexHeight()
55 */
56 public int getTexHeight() {
57 return InternalTextureLoader.get2Fold(height);
58 }
59
60 /**
61 * @see org.newdawn.slick.opengl.ImageData#getTexWidth()
62 */
63 public int getTexWidth() {
64 return InternalTextureLoader.get2Fold(width);
65 }
66
67 /**
68 * @see org.newdawn.slick.opengl.ImageData#getWidth()
69 */
70 public int getWidth() {
71 return width;
72 }
73
74 }