From 03665fac214574ec58458676789347855c34c29a Mon Sep 17 00:00:00 2001
From: uruk
Date: Wed, 24 Jul 2013 19:47:41 +0200
Subject: AVALANCHE: Graphics: double screen height.

---
 engines/avalanche/graphics.cpp | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/engines/avalanche/graphics.cpp b/engines/avalanche/graphics.cpp
index 8035491bfb..287f85c092 100644
--- a/engines/avalanche/graphics.cpp
+++ b/engines/avalanche/graphics.cpp
@@ -48,7 +48,7 @@ Graphics::Graphics(AvalancheEngine *vm) {
 }
 
 void Graphics::init() {
-	initGraphics(kScreenWidth, kScreenHeight, true);
+	initGraphics(kScreenWidth, kScreenHeight * 2, true); // Doubling the height.
 
 	for (int i = 0; i < 64; ++i) {
 		_egaPalette[i][0] = (i >> 2 & 1) * 0xaa + (i >> 5 & 1) * 0x55;
@@ -141,8 +141,18 @@ void Graphics::drawPicture(const byte *source, uint16 destX, uint16 destY) {
 }
 
 void Graphics::refreshScreen() {
-	g_system->copyRectToScreen(_surface.pixels, _surface.pitch , 0, 0, kScreenWidth, kScreenHeight);
+	// These cycles are for doubling the screen height.
+	::Graphics::Surface source;
+	source.create(kScreenWidth, kScreenHeight * 2, ::Graphics::PixelFormat::createFormatCLUT8());
+	for (uint16 y = 0; y < source.h / 2; y++)
+		for (uint16 x = 0; x < source.w; x++)
+			for (byte j = 0; j < 2; j++) 
+				*(byte *)source.getBasePtr(x, y * 2 + j) = *(byte *)_surface.getBasePtr(x, y);	
+
+	// Now we copy the stretched picture to the screen.
+	g_system->copyRectToScreen(source.pixels, source.pitch , 0, 0, kScreenWidth, kScreenHeight * 2);
 	g_system->updateScreen();
 }
 
+
 } // End of namespace Avalanche
-- 
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