Most of the 1.8 Port.

src/main/java/appeng/client/render/IconUnwrapper.java

@@ -0,0 +1,87 @@
+
+package appeng.client.render;
+
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import appeng.client.texture.IAESprite;
+
+
+public class IconUnwrapper extends TextureAtlasSprite
+{
+	
+	int width;
+	int height;
+	
+	float max_u;
+	float min_u;
+	float min_v;
+	float max_v;
+	
+	protected IconUnwrapper(
+			IAESprite src )
+	{
+		super( src.getIconName() );
+		width = src.getIconWidth();
+		height = src.getIconHeight();
+		min_u = src.getMinU();
+		max_u = src.getMaxU();
+		min_v = src.getMinV();
+		max_v = src.getMaxV();
+	}
+
+	@Override
+	public int getIconWidth()
+	{
+		return width;
+	}
+
+	@Override
+	public int getIconHeight()
+	{
+		return height;
+	}
+
+	@Override
+	public float getMaxU()
+	{
+		return max_u;
+	}
+
+	@Override
+	public float getMinV()
+	{
+		return min_v;
+	}
+
+	@Override
+	public float getMaxV()
+	{
+		return max_v;
+	}
+
+	@Override
+	public String getIconName()
+	{
+		return super.getIconName();
+	}
+
+	@Override
+	public float getMinU()
+	{
+		return min_u;
+	}
+
+	@Override
+    public float getInterpolatedU(double d)
+    {
+        float f = this.max_u - this.min_u;
+        return this.min_u + f * (float)d / 16.0F;
+    }
+
+	@Override
+    public float getInterpolatedV(double d)
+    {
+        float f = this.max_v - this.min_v;
+        return this.min_v + f * ((float)d / 16.0F);
+    }
+
+}