Android Open Source - tetris-android Texture

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Back to project page tetris-android.

License

The source code is released under:

MIT License

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Java Source Code

package com.badlogic.androidgames.framework.gl;
//from   ww w.j  a v  a  2  s.c  om
import java.io.IOException;
import java.io.InputStream;

import javax.microedition.khronos.opengles.GL10;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.opengl.GLUtils;

import com.badlogic.androidgames.framework.FileIO;
import com.badlogic.androidgames.framework.impl.GLGame;
import com.badlogic.androidgames.framework.impl.GLGraphics;

public class Texture {
    GLGraphics glGraphics;
    FileIO fileIO;
    String fileName;
    int textureId;
    int minFilter;
    int magFilter;   
    public int width;
    public int height;
    
    public Texture(GLGame glGame, String fileName) {
        this.glGraphics = glGame.getGLGraphics();
        this.fileIO = glGame.getFileIO();
        this.fileName = fileName;
        load();
    }
    
    private void load() {
        GL10 gl = glGraphics.getGL();
        int[] textureIds = new int[1];
        gl.glGenTextures(1, textureIds, 0);
        textureId = textureIds[0];
        
        InputStream in = null;
        try {
            in = fileIO.readAsset(fileName);
            Bitmap bitmap = BitmapFactory.decodeStream(in);
            gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
            GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0);
            setFilters(GL10.GL_NEAREST, GL10.GL_NEAREST);            
            gl.glBindTexture(GL10.GL_TEXTURE_2D, 0);
            width = bitmap.getWidth();
            height = bitmap.getHeight();
            bitmap.recycle();
        } catch(IOException e) {
            throw new RuntimeException("Couldn't load texture '" + fileName +"'", e);
        } finally {
            if(in != null)
                try { in.close(); } catch (IOException e) { }
        }
    }
    
    public void reload() {
        load();
        bind();
        setFilters(minFilter, magFilter);        
        glGraphics.getGL().glBindTexture(GL10.GL_TEXTURE_2D, 0);
    }
    
    public void setFilters(int minFilter, int magFilter) {
        this.minFilter = minFilter;
        this.magFilter = magFilter;
        GL10 gl = glGraphics.getGL();
        gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, minFilter);
        gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, magFilter);
    }    
    
    public void bind() {
        GL10 gl = glGraphics.getGL();
        gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
    }
    
    public void dispose() {
        GL10 gl = glGraphics.getGL();
        gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
        int[] textureIds = { textureId };
        gl.glDeleteTextures(1, textureIds, 0);
    }
}

Java Source Code List