From d6ddb601ca9ae9c5e6316e1e0f05f4854d066df7 Mon Sep 17 00:00:00 2001
From: Paul Gilbert
Date: Mon, 11 Feb 2019 21:32:34 -0800
Subject: GLK: FROTZ: Have zRGB properly convert to screen format

---
 engines/glk/frotz/processor_screen.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'engines/glk')

diff --git a/engines/glk/frotz/processor_screen.cpp b/engines/glk/frotz/processor_screen.cpp
index 95e1218f01..a440cfa013 100644
--- a/engines/glk/frotz/processor_screen.cpp
+++ b/engines/glk/frotz/processor_screen.cpp
@@ -274,7 +274,7 @@ void Processor::z_print_table() {
 #define zG(i) ((((i >>  5) & 0x1F) << 3) | (((i >>  5) & 0x1F) >> 2))
 #define zR(i) ((((i      ) & 0x1F) << 3) | (((i      ) & 0x1F) >> 2))
 
-#define zRGB(i) (zR(i) << 16 | zG(i) << 8 | zB(i))
+#define zRGB(i) _screen->format.RGBToColor(zR(i), zG(i), zB(i))
 
 void Processor::z_set_true_colour() {
 	int zfore = zargs[0];
-- 
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