com.watabou.glwrap.NoosaTexture.java Source code

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Here is the source code for com.watabou.glwrap.NoosaTexture.java

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/*
 * Copyright (C) 2012-2015  Oleg Dolya
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */

package com.watabou.glwrap;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.IntBuffer;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.Texture.TextureFilter;
import com.badlogic.gdx.graphics.Texture.TextureWrap;

public class NoosaTexture {

    public boolean premultiplied = false;
    public Texture bitmap;

    protected NoosaTexture(Texture bitmap) {
        this.bitmap = bitmap;
    }

    public static void activate(int index) {
        Gdx.gl.glActiveTexture(GL20.GL_TEXTURE0 + index);
    }

    public void bind() {
        bitmap.bind();
    }

    public void filter(TextureFilter minMode, TextureFilter maxMode) {
        bitmap.setFilter(minMode, maxMode);
    }

    public void wrap(TextureWrap u, TextureWrap v) {
        bitmap.setWrap(u, v);
    }

    public void delete() {
        bitmap.dispose();
    }

    public void bitmap(Texture bitmap) {
        this.bitmap = bitmap;

        premultiplied = true;
    }

    public void pixels(int w, int h, int[] pixels) {

        // FIXME
        bind();

        IntBuffer imageBuffer = ByteBuffer.allocateDirect(w * h * 4).order(ByteOrder.nativeOrder()).asIntBuffer();
        imageBuffer.put(pixels);
        imageBuffer.position(0);

        Gdx.gl.glTexImage2D(GL20.GL_TEXTURE_2D, 0, GL20.GL_RGBA, w, h, 0, GL20.GL_RGBA, GL20.GL_UNSIGNED_BYTE,
                imageBuffer);
    }

    public void pixels(int w, int h, byte[] pixels) {

        bind();

        ByteBuffer imageBuffer = ByteBuffer.allocateDirect(w * h).order(ByteOrder.nativeOrder());
        imageBuffer.put(pixels);
        imageBuffer.position(0);

        Gdx.gl.glPixelStorei(GL20.GL_UNPACK_ALIGNMENT, 1);

        Gdx.gl.glTexImage2D(GL20.GL_TEXTURE_2D, 0, GL20.GL_ALPHA, w, h, 0, GL20.GL_ALPHA, GL20.GL_UNSIGNED_BYTE,
                imageBuffer);
    }

    // If getConfig returns null (unsupported format?), GLUtils.texImage2D works
    // incorrectly. In this case we need to load pixels manually
    public void handMade(Texture bitmap, boolean recode) {

        int w = bitmap.getWidth();
        int h = bitmap.getHeight();

        int[] pixels = new int[w * h];
        // FIXME
        //      bitmap.getPixels( pixels, 0, w, 0, 0, w, h );

        // recode - components reordering is needed
        if (recode) {
            for (int i = 0; i < pixels.length; i++) {
                int color = pixels[i];
                int ag = color & 0xFF00FF00;
                int r = (color >> 16) & 0xFF;
                int b = color & 0xFF;
                pixels[i] = ag | (b << 16) | r;
            }
        }

        pixels(w, h, pixels);

        premultiplied = false;
    }

    public static NoosaTexture create(Texture bmp) {
        return new NoosaTexture(bmp);
    }

    public static NoosaTexture create(int width, int height, int[] pixels) {
        // FIXME
        NoosaTexture tex = new NoosaTexture(null);
        tex.pixels(width, height, pixels);

        return tex;
    }

    public static NoosaTexture create(int width, int height, byte[] pixels) {
        // FIXME
        NoosaTexture tex = new NoosaTexture(null);
        tex.pixels(width, height, pixels);

        return tex;
    }
}