From 8c7f3fd1e6f9b04da2b01e25bd7a5dee6feeee28 Mon Sep 17 00:00:00 2001
From: hikari <ftphikari@gmail.com>
Date: Sat, 30 Apr 2022 13:34:11 +0300
Subject: [PATCH] sys/windows: change macro and add comment

---
 core/sys/windows/gdi32.odin | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/core/sys/windows/gdi32.odin b/core/sys/windows/gdi32.odin
index eb863b586..bec5225a7 100644
--- a/core/sys/windows/gdi32.odin
+++ b/core/sys/windows/gdi32.odin
@@ -67,6 +67,8 @@ foreign gdi32 {
 	PatBlt :: proc(hdc: HDC, x, y, w, h: c_int, rop: DWORD) -> BOOL ---
 }
 
-RGB :: proc(r, g, b: u8) -> COLORREF {
-	return COLORREF(COLORREF(r) | COLORREF(g) << 8 | COLORREF(b) << 16)
+// Windows colors are packed as ABGR
+RGB :: #force_inline proc "contextless" (r, g, b: u8) -> COLORREF {
+	res: [4]u8 = {0, rgb.b, rgb.g, rgb.r}
+	return transmute(COLORREF)res
 }