cache: store original pixels and palette too, and add normalize()

cache/src/main/java/net/runelite/cache/definitions/SpriteDefinition.java

@@ -22,7 +22,6 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-
 package net.runelite.cache.definitions;
 
 import lombok.Data;
@@ -39,4 +38,30 @@ public class SpriteDefinition
 	private int[] pixels;
 	private int maxWidth;
 	private int maxHeight;
+
+	public transient byte[] pixelIdx;
+	public transient int[] palette;
+
+	public void normalize()
+	{
+		if (this.width != this.maxWidth || this.height != this.maxHeight)
+		{
+			byte[] var1 = new byte[this.maxWidth * this.maxHeight];
+			int var2 = 0;
+
+			for (int var3 = 0; var3 < this.height; ++var3)
+			{
+				for (int var4 = 0; var4 < this.width; ++var4)
+				{
+					var1[var4 + (var3 + this.offsetY) * this.maxWidth + this.offsetX] = this.pixelIdx[var2++];
+				}
+			}
+
+			this.pixelIdx = var1;
+			this.width = this.maxWidth;
+			this.height = this.maxHeight;
+			this.offsetX = 0;
+			this.offsetY = 0;
+		}
+	}
 }

cache/src/main/java/net/runelite/cache/definitions/loaders/SpriteLoader.java

@@ -105,6 +105,8 @@ public class SpriteLoader
 			int dimension = spriteWidth * spriteHeight;
 			byte[] pixelPaletteIndicies = new byte[dimension];
 			byte[] pixelAlphas = new byte[dimension];
+			def.pixelIdx = pixelPaletteIndicies;
+			def.palette = palette;
 
 			int flags = is.readUnsignedByte();