From f755fb2ebbec79fdff60ed9c625e683e7df32822 Mon Sep 17 00:00:00 2001
From: LexManos <LexManos@gmail.com>
Date: Sun, 7 Apr 2013 21:45:49 -0700
Subject: [PATCH] Optimize Texture loops a bit for non-rotated textures. Should
 help the FPS loss on higher resolution texture packs. If it becomes a major
 issue we may have to look into a more  optimized animation system.

https://mojang.atlassian.net/browse/MC-13206
---
 .../renderer/texture/Texture.java.patch       | 39 ++++++++++++++++++-
 1 file changed, 37 insertions(+), 2 deletions(-)

diff --git a/patches/minecraft/net/minecraft/client/renderer/texture/Texture.java.patch b/patches/minecraft/net/minecraft/client/renderer/texture/Texture.java.patch
index 74229b819..68ef8630a 100644
--- a/patches/minecraft/net/minecraft/client/renderer/texture/Texture.java.patch
+++ b/patches/minecraft/net/minecraft/client/renderer/texture/Texture.java.patch
@@ -1,6 +1,41 @@
 --- ../src_base/minecraft/net/minecraft/client/renderer/texture/Texture.java
 +++ ../src_work/minecraft/net/minecraft/client/renderer/texture/Texture.java
-@@ -222,7 +222,7 @@
+@@ -214,7 +214,33 @@
+             this.textureData.position(0);
+             bytebuffer.position(0);
+ 
+-            for (int k = 0; k < par3Texture.getHeight(); ++k)
++            /* Forge: 
++             * 
++             * Optimize these loops a bit for non-rotated textures.
++             * Should help the FPS loss on higher resolution texture packs.
++             * If it becomes a major issue we may have to look into a more 
++             * optimized animation system. 
++             * 
++             * https://mojang.atlassian.net/browse/MC-13206
++             */
++            if (!par4)
++            {
++                int scanSize = par3Texture.getWidth() * 4;
++                int w4 = width * 4;
++                int targetY = (par2 * w4) + (par1 * 4);
++
++                for (int y = 0; y < par3Texture.getHeight(); y++)
++                {
++                    textureData.position(targetY);
++                    for (int x = 0; x < scanSize; x++)
++                    {
++                        textureData.put(bytebuffer.get());
++                    }
++                    targetY += w4;
++                }
++            }
++
++            for (int k = 0; par4 && k < par3Texture.getHeight(); ++k)
+             {
+                 int l = par2 + k;
+                 int i1 = k * par3Texture.getWidth() * 4;
+@@ -222,7 +248,7 @@
  
                  if (par4)
                  {
@@ -9,7 +44,7 @@
                  }
  
                  for (int k1 = 0; k1 < par3Texture.getWidth(); ++k1)
-@@ -232,7 +232,7 @@
+@@ -232,7 +258,7 @@
  
                      if (par4)
                      {