From 4ea4172cbad466738836f7be8ebdcad4eabd0bb9 Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Fri, 26 Aug 2011 05:51:08 +0200
Subject: SCUMM: Implement proper Indy4 Amiga palette handling.

This should fix incorrect text colors in some scenes.
---
 engines/scumm/gfx.cpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'engines/scumm/gfx.cpp')

diff --git a/engines/scumm/gfx.cpp b/engines/scumm/gfx.cpp
index 8a32b963cd..a22aa1802f 100644
--- a/engines/scumm/gfx.cpp
+++ b/engines/scumm/gfx.cpp
@@ -1025,6 +1025,16 @@ void ScummEngine::restoreBackground(Common::Rect rect, byte backColor) {
 	if (rect.left > vs->w)
 		return;
 
+	// Indy4 Amiga always uses the room or verb palette map to match colors to
+	// the currently setup palette, thus we need to select it over here too.
+	// Done like the original interpreter.
+	if (_game.platform == Common::kPlatformAmiga && _game.id == GID_INDY4) {
+		if (vs->number == kVerbVirtScreen)
+			backColor = _verbPalette[backColor];
+		else
+			backColor = _roomPalette[backColor];
+	}
+
 	// Convert 'rect' to local (virtual screen) coordinates
 	rect.top -= vs->topline;
 	rect.bottom -= vs->topline;
@@ -1235,6 +1245,16 @@ void ScummEngine::drawBox(int x, int y, int x2, int y2, int color) {
 	if ((vs = findVirtScreen(y)) == NULL)
 		return;
 
+	// Indy4 Amiga always uses the room or verb palette map to match colors to
+	// the currently setup palette, thus we need to select it over here too.
+	// Done like the original interpreter.
+	if (_game.platform == Common::kPlatformAmiga && _game.id == GID_INDY4) {
+		if (vs->number == kVerbVirtScreen)
+			color = _verbPalette[color];
+		else
+			color = _roomPalette[color];
+	}
+
 	if (x > x2)
 		SWAP(x, x2);
 
@@ -1872,6 +1892,16 @@ bool Gdi::drawStrip(byte *dstPtr, VirtScreen *vs, int x, int y, const int width,
 	}
 	assertRange(0, offset, smapLen-1, "screen strip");
 
+	// Indy4 Amiga always uses the room or verb palette map to match colors to
+	// the currently setup palette, thus we need to select it over here too.
+	// Done like the original interpreter.
+	if (_vm->_game.platform == Common::kPlatformAmiga && _vm->_game.id == GID_INDY4) {
+		if (vs->number == kVerbVirtScreen)
+			_roomPalette = _vm->_verbPalette;
+		else
+			_roomPalette = _vm->_roomPalette;
+	}
+
 	return decompressBitmap(dstPtr, vs->pitch, smap_ptr + offset, height);
 }
 
-- 
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