From d0b8a8e468017ce9096729a78fe3b19ff4f89a68 Mon Sep 17 00:00:00 2001
From: Martin Kiewitz
Date: Sun, 24 Jan 2010 10:06:27 +0000
Subject: SCI: supporting .used bit 1 in palettes (force direct palette
 setting) and clipping palette intensity results fixes fade in/out in sq5
 intro (some timing problems remain)

svn-id: r47495
---
 engines/sci/graphics/palette.cpp | 4 ++--
 engines/sci/graphics/screen.cpp  | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'engines')

diff --git a/engines/sci/graphics/palette.cpp b/engines/sci/graphics/palette.cpp
index ed2fa0c003..94980609d5 100644
--- a/engines/sci/graphics/palette.cpp
+++ b/engines/sci/graphics/palette.cpp
@@ -199,8 +199,8 @@ void SciPalette::merge(Palette *pFrom, Palette *pTo, uint16 flag) {
 	for (i = 1 ; i < 255; i++) {
 		if (!pFrom->colors[i].used)// color is not used - so skip it
 			continue;
-		// forced palette merging or dest color is not used yet
-		if (flag == 2 || (!pTo->colors[i].used)) {
+		// forced palette merging or dest color is not used yet or bit 1 of new color is set
+		if (flag == 2 || (!pTo->colors[i].used) || (pFrom->colors[i].used & 2)) {
 			pTo->colors[i].used = pFrom->colors[i].used;
 			pTo->colors[i].r = pFrom->colors[i].r;
 			pTo->colors[i].g = pFrom->colors[i].g;
diff --git a/engines/sci/graphics/screen.cpp b/engines/sci/graphics/screen.cpp
index a3131dec02..64155f4570 100644
--- a/engines/sci/graphics/screen.cpp
+++ b/engines/sci/graphics/screen.cpp
@@ -394,9 +394,9 @@ void Screen::setPalette(Palette*pal) {
 	for (int16 i = 0; i < 256; i++) {
 		if (!pal->colors[i].used)
 			continue;
-		bpal[i * 4] = pal->colors[i].r * pal->intensity[i] / 100;
-		bpal[i * 4 + 1] = pal->colors[i].g * pal->intensity[i] / 100;
-		bpal[i * 4 + 2] = pal->colors[i].b * pal->intensity[i] / 100;
+		bpal[i * 4] = CLIP(pal->colors[i].r * pal->intensity[i] / 100, 0, 255);
+		bpal[i * 4 + 1] = CLIP(pal->colors[i].g * pal->intensity[i] / 100, 0, 255);
+		bpal[i * 4 + 2] = CLIP(pal->colors[i].b * pal->intensity[i] / 100, 0, 255);
 		bpal[i * 4 + 3] = 100;
 	}
 	g_system->setPalette(bpal, 0, 256);
-- 
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