lib.TextureManager.java Source code

Introduction

Here is the source code for lib.TextureManager.java

Source

/*
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package lib;

import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Texture;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;

/**
 *  ?
 * 
 * @author mypc
 */
class TextureManager {
    /**
     * ?
     */
    static List<Entry> entries;

    /**
     *  - ?   ? ? ??
     */
    static class Entry {
        /**
         * ?
         */
        Texture texture;

        /**
         * 
         */
        BufferedImage image;
    }

    /**
     *    ?
     * 
     * @param img  
     * @return ?
     */
    public static Texture imageToTexture(BufferedImage img) {
        Pixmap px = new Pixmap(img.getWidth(), img.getHeight(), Pixmap.Format.RGBA8888);
        Pixmap.setBlending(Pixmap.Blending.None);
        px.setColor(Color.CYAN);
        for (int i = 0; i < img.getWidth(); i++) {
            for (int j = 0; j < img.getHeight(); j++) {
                int color = img.getRGB(i, j); // Components will be in the range of 0..255:
                int red = (color & 0x00ff0000) >> 16;
                int green = (color & 0x0000ff00) >> 8;
                int blue = color & 0x000000ff;
                int alpha = (color >> 24) & 0xff;
                px.setColor(red / 255.0f, green / 255.0f, blue / 255.0f, alpha / 255.0f);
                px.drawPixel(i, j);
            }
        }

        return new Texture(px);
    }

    /**
     *  ? ? ?, ???  ? ? 
     * 
     * @param img 
     * @return ?
     */
    public static Texture getTexture(BufferedImage img) {
        if (entries == null) {
            entries = new ArrayList<>();
        }

        for (Entry entry : entries) {
            if (entry.image == img) {
                return entry.texture;
            }
        }

        Texture tex = TextureManager.imageToTexture(img);
        Entry e = new Entry();
        e.image = img;
        e.texture = tex;
        entries.add(e);

        return e.texture;
    }

    /**
     * ?  ?,   ??
     */
    public static void disposeTextures() {
        if (entries != null) {
            entries.stream().forEach((entry) -> {
                entry.texture.dispose();
            });
        }
    }
}