From eddc6f7f4a63c02839e3f51160978179713b6bca Mon Sep 17 00:00:00 2001
From: fallenoak <git@fallenoak.me>
Date: Tue, 11 Apr 2023 00:24:59 -0500
Subject: [PATCH] fix(gx): correct off-by-one error when popping render states

---
 src/gx/CGxDevice.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/gx/CGxDevice.cpp b/src/gx/CGxDevice.cpp
index d96376e..31b30b6 100644
--- a/src/gx/CGxDevice.cpp
+++ b/src/gx/CGxDevice.cpp
@@ -734,8 +734,11 @@ void CGxDevice::RsPop() {
     auto topOfStack = this->m_stackOffsets[this->m_stackOffsets.Count() - 1];
 
     if (this->m_pushedStates.Count() > topOfStack) {
-        for (int32_t i = this->m_pushedStates.Count() - 1; i > topOfStack; i--) {
-            auto ps = &this->m_pushedStates[i];
+        auto bottomOfStack = this->m_pushedStates.Count() - 1;
+        auto stackSize = this->m_pushedStates.Count() - topOfStack;
+
+        for (uint32_t stackOffset = 0; stackOffset < stackSize; stackOffset++) {
+            auto ps = &this->m_pushedStates[bottomOfStack - stackOffset];
             auto rs = &this->m_appRenderStates[ps->m_which];
 
             if (!rs->m_dirty) {