tests/gdx-tests-lwjgl/src/com/badlogic/gdx/tests/lwjgl/Test2.java

   1
   2 package com.badlogic.gdx.tests.lwjgl;
   3
   4 import com.badlogic.gdx.ApplicationAdapter;
   5 import com.badlogic.gdx.Gdx;
   6 import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
   7 import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration;
   8 import com.badlogic.gdx.graphics.Color;
   9 import com.badlogic.gdx.graphics.GL10;
  10 import com.badlogic.gdx.graphics.Pixmap;
  11 import com.badlogic.gdx.graphics.Pixmap.Format;
  12 import com.badlogic.gdx.graphics.Texture;
  13 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
  14 import com.badlogic.gdx.graphics.g2d.TextureRegion;
  15 import com.badlogic.gdx.utils.ScreenUtils;
  16
  17 public class Test2 extends ApplicationAdapter {
  18         SpriteBatch batch;
  19         TextureRegion region;
  20         Pixmap screenCap;
  21         Texture screenCapTex;
  22         private int size = 2;
  23
  24         public void create () {
  25
  26                 batch = new SpriteBatch();
  27                 Pixmap p = new Pixmap(64, 64, Format.RGBA8888);
  28                 p.setColor(Color.RED);
  29                 p.fillRectangle(32, 32, size , size );
  30                 region = new TextureRegion(new Texture(p), 32, 32, size , size );
  31
  32                 Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
  33                 Gdx.gl.glClearColor(0, 0, 0, 1);
  34                 batch.begin();
  35                 batch.draw(region, 1, 1, 256, 256);
  36                 batch.end();
  37                 screenCap = ScreenUtils.getFrameBufferPixmap(0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
  38                 screenCapTex = new Texture(screenCap);
  39                 System.out.println("size: " + size);
  40                 System.out.println(Integer.toHexString(screenCap.getPixel(0, 0)));
  41                 System.out.println(Integer.toHexString(screenCap.getPixel(1, 1)));
  42                 System.out.println(Integer.toHexString(screenCap.getPixel(256, 256)));
  43                 System.out.println(Integer.toHexString(screenCap.getPixel(257, 257)));
  44         }
  45
  46         public void render () {
  47                 Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
  48                 Gdx.gl.glClearColor(0, 0, 0, 1);
  49                 batch.begin();
  50                 batch.draw(screenCapTex, 0, 0);
  51                 batch.end();
  52         }
  53
  54         public static void main (String[] args) {
  55                 LwjglApplicationConfiguration config = new LwjglApplicationConfiguration();
  56                 config.useGL20 = true;
  57                 new LwjglApplication(new Test2(), config);
  58         }
  59 }