/
AlphaTest.java
62 lines (54 loc) · 1.99 KB
/
AlphaTest.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* 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.badlogic.gdx.tests;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Pixmap.Format;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.Texture.TextureFilter;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.tests.utils.GdxTest;
public class AlphaTest extends GdxTest {
SpriteBatch batch;
Texture texture;
@Override
public void create () {
Pixmap pixmap = new Pixmap(256, 256, Format.RGBA8888);
pixmap.setColor(1, 0, 0, 1);
pixmap.fill();
texture = new Texture(pixmap, false);
texture.setFilter(TextureFilter.Linear, TextureFilter.Linear);
batch = new SpriteBatch();
pixmap.dispose();
}
@Override
public void render () {
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
batch.begin();
batch.draw(texture, 0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
batch.end();
Pixmap pixmap = Pixmap.createFromFrameBuffer(0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
int color = pixmap.getPixel(0, pixmap.getHeight() - 1);
Gdx.app.log("AlphaTest", Integer.toHexString(color));
pixmap.dispose();
}
@Override
public void dispose () {
batch.dispose();
texture.dispose();
}
}