From 2b3127be2b5a9f5fe167feda0559520e2b504238 Mon Sep 17 00:00:00 2001
From: Marcus Comstedt <marcus@mc.pp.se>
Date: Mon, 4 Jul 2022 22:26:54 +0200
Subject: [PATCH] fix: use correct RGB shifts on big endian

---
 thirdparty/imgui/imgui.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/thirdparty/imgui/imgui.h b/thirdparty/imgui/imgui.h
index dc00f86c5..00e4dd066 100644
--- a/thirdparty/imgui/imgui.h
+++ b/thirdparty/imgui/imgui.h
@@ -2263,17 +2263,33 @@ struct ImGuiListClipper
 
 // Helpers macros to generate 32-bit encoded colors
 #ifdef IMGUI_USE_BGRA_PACKED_COLOR
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 #define IM_COL32_R_SHIFT    16
 #define IM_COL32_G_SHIFT    8
 #define IM_COL32_B_SHIFT    0
 #define IM_COL32_A_SHIFT    24
 #define IM_COL32_A_MASK     0xFF000000
 #else
+#define IM_COL32_R_SHIFT    8
+#define IM_COL32_G_SHIFT    16
+#define IM_COL32_B_SHIFT    24
+#define IM_COL32_A_SHIFT    0
+#define IM_COL32_A_MASK     0x000000FF
+#endif
+#else
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 #define IM_COL32_R_SHIFT    0
 #define IM_COL32_G_SHIFT    8
 #define IM_COL32_B_SHIFT    16
 #define IM_COL32_A_SHIFT    24
 #define IM_COL32_A_MASK     0xFF000000
+#else
+#define IM_COL32_R_SHIFT    24
+#define IM_COL32_G_SHIFT    16
+#define IM_COL32_B_SHIFT    8
+#define IM_COL32_A_SHIFT    0
+#define IM_COL32_A_MASK     0x000000FF
+#endif
 #endif
 #define IM_COL32(R,G,B,A)    (((ImU32)(A)<<IM_COL32_A_SHIFT) | ((ImU32)(B)<<IM_COL32_B_SHIFT) | ((ImU32)(G)<<IM_COL32_G_SHIFT) | ((ImU32)(R)<<IM_COL32_R_SHIFT))
 #define IM_COL32_WHITE       IM_COL32(255,255,255,255)  // Opaque white = 0xFFFFFFFF