From 2357093bc80b4899af62dbedcc68707c3cf01d6f Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Mon, 28 Aug 2023 05:58:46 -0500
Subject: [PATCH] GUI: fix image loading (big endian)

---
 src/gui/gui.cpp   |  4 ----
 src/gui/image.cpp | 14 ++++++++++++++
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index db3d4311f..07be9fefb 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -6361,11 +6361,7 @@ bool FurnaceGUI::init() {
   const FurnaceGUIImage* furIcon=getImage(GUI_IMAGE_ICON);
   SDL_Surface* icon=NULL;
   if (furIcon!=NULL) {
-#ifdef TA_BIG_ENDIAN
-    icon=SDL_CreateRGBSurfaceFrom(furIcon->data,furIcon->width,furIcon->height,32,256*4,0xff000000,0xff0000,0xff00,0xff);
-#else
     icon=SDL_CreateRGBSurfaceFrom(furIcon->data,furIcon->width,furIcon->height,32,256*4,0xff,0xff00,0xff0000,0xff000000);
-#endif
   } else {
     logE("furIcon is NULL!");
   }
diff --git a/src/gui/image.cpp b/src/gui/image.cpp
index 493b5a57f..a5c7baec3 100644
--- a/src/gui/image.cpp
+++ b/src/gui/image.cpp
@@ -87,6 +87,20 @@ FurnaceGUIImage* FurnaceGUI::getImage(FurnaceGUIImages image) {
 
     logV("%dx%d",ret->width,ret->height);
 
+#ifdef TA_BIG_ENDIAN
+    if (ret->ch==4) {
+      size_t total=ret->width*ret->height*ret->ch;
+      for (size_t i=0; i<total; i+=4) {
+        ret->data[i]^=ret->data[i|3];
+        ret->data[i|3]^=ret->data[i];
+        ret->data[i]^=ret->data[i|3];
+        ret->data[i|1]^=ret->data[i|2];
+        ret->data[i|2]^=ret->data[i|1];
+        ret->data[i|1]^=ret->data[i|2];
+      }
+    }
+#endif
+
     images[image]=ret;
   }