MinecraftGRPF/src/com/mojang/minecraft/renderer/Textures.java

66 lines
2.3 KiB
Java

//
// Decompiled by Procyon v0.5.36
//
package com.mojang.minecraft.renderer;
import java.nio.ByteBuffer;
import java.awt.image.BufferedImage;
import java.nio.IntBuffer;
import java.io.IOException;
import org.lwjgl.util.glu.GLU;
import javax.imageio.ImageIO;
import org.lwjgl.opengl.GL11;
import org.lwjgl.BufferUtils;
import java.util.HashMap;
public class Textures
{
private HashMap<String, Integer> idMap;
public Textures() {
this.idMap = new HashMap<String, Integer>();
}
public int loadTexture(final String resourceName, final int mode) {
try {
if (this.idMap.containsKey(resourceName)) {
return this.idMap.get(resourceName);
}
final IntBuffer ib = BufferUtils.createIntBuffer(1);
ib.clear();
GL11.glGenTextures(ib);
final int id = ib.get(0);
this.idMap.put(resourceName, id);
GL11.glBindTexture(3553, id);
GL11.glTexParameteri(3553, 10241, mode);
GL11.glTexParameteri(3553, 10240, mode);
final BufferedImage img = ImageIO.read(Textures.class.getResourceAsStream(resourceName));
final int w = img.getWidth();
final int h = img.getHeight();
final ByteBuffer pixels = BufferUtils.createByteBuffer(w * h * 4);
final int[] rawPixels = new int[w * h];
final byte[] newPixels = new byte[w * h * 4];
img.getRGB(0, 0, w, h, rawPixels, 0, w);
for (int i = 0; i < rawPixels.length; ++i) {
final int a = rawPixels[i] >> 24 & 0xFF;
final int r = rawPixels[i] >> 16 & 0xFF;
final int g = rawPixels[i] >> 8 & 0xFF;
final int b = rawPixels[i] & 0xFF;
newPixels[i * 4 + 0] = (byte)r;
newPixels[i * 4 + 1] = (byte)g;
newPixels[i * 4 + 2] = (byte)b;
newPixels[i * 4 + 3] = (byte)a;
}
pixels.put(newPixels);
pixels.position(0).limit(newPixels.length);
GLU.gluBuild2DMipmaps(3553, 6408, w, h, 6408, 5121, pixels);
System.out.println("Loaded texture " + (resourceName));
return id;
}
catch (IOException e) {
throw new RuntimeException("Couldn't load texture");
}
}
}