From 25a937e1566974a0c920be8ab411c488201b8e53 Mon Sep 17 00:00:00 2001
From: Vladimir Menshakov <whoozle@yandex.ru>
Date: Fri, 10 Jun 2011 02:18:57 +0400
Subject: [PATCH] DREAMWEB: added fadedos

---
 engines/dreamweb/dreamweb.cpp | 20 +++++++++++++++++++-
 engines/dreamweb/dreamweb.h   |  1 +
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/engines/dreamweb/dreamweb.cpp b/engines/dreamweb/dreamweb.cpp
index 65cd2a0c434..fe27f4f97c7 100644
--- a/engines/dreamweb/dreamweb.cpp
+++ b/engines/dreamweb/dreamweb.cpp
@@ -202,6 +202,23 @@ void DreamWebEngine::setGraphicsMode() {
 	initGraphics(320, 200, false);
 }
 
+void DreamWebEngine::fadeDos() {
+	static const int startpal = 0+(228*13)+32+60+(32*32)+(11*10*3); //fixme: add equ to enum too
+	
+	PaletteManager *palette = _system->getPaletteManager();
+	_context.ds = _context.es = _context.data.word(dreamgen::kBuffers);
+	uint8 *dst = _context.es.ptr(startpal, 768);
+	palette->grabPalette(dst, 0, 64);
+	for(int fade = 0; fade < 64; ++fade) {
+		for(int c = 0; c < 768; ++c) { //original sources decrement 768 values -> 256 colors
+			if (dst[c]) {
+				--dst[c];
+			}
+		}
+		palette->setPalette(dst, 0, 64);
+		waitForVSync();
+	}
+}
 
 } // End of namespace DreamWeb
 
@@ -485,7 +502,8 @@ void showgroup(Context &context) {
 }
 
 void fadedos(Context &context) {
-	warning("fadedos: STUB");
+	vsync(context);
+	engine()->fadeDos();
 }
 
 void doshake(Context &context) {
diff --git a/engines/dreamweb/dreamweb.h b/engines/dreamweb/dreamweb.h
index d2fc447fee1..ed4359f6456 100644
--- a/engines/dreamweb/dreamweb.h
+++ b/engines/dreamweb/dreamweb.h
@@ -85,6 +85,7 @@ public:
 	void mouseCall(); //fill mouse pos and button state
 	void processEvents();
 	void setGraphicsMode();
+	void fadeDos();
 
 private:
 	const DreamWebGameDescription	*_gameDescription;