From e22a75de9981876aafc0b07946c23185d823b190 Mon Sep 17 00:00:00 2001
From: Filippos Karapetis
Date: Fri, 2 Jul 2010 19:04:44 +0000
Subject: Rewrote the handling of thumbnail creation for KQ6 Windows in rev
 #50600, so that it recreates the screen buffer like the other workarounds
 above it (thanks to LordHoto for pointing this out)

svn-id: r50601
---
 graphics/scaler/thumbnail_intern.cpp | 28 ++++++++++++----------------
 1 file changed, 12 insertions(+), 16 deletions(-)

diff --git a/graphics/scaler/thumbnail_intern.cpp b/graphics/scaler/thumbnail_intern.cpp
index a27b77ccbb..ad8f73305d 100644
--- a/graphics/scaler/thumbnail_intern.cpp
+++ b/graphics/scaler/thumbnail_intern.cpp
@@ -71,17 +71,6 @@ void createThumbnail_4(const uint8 *src, uint32 srcPitch, uint8 *dstPtr, uint32
 		dstPtr += (dstPitch - 2 * width / 4);
 		src += 4 * srcPitch;
 	}
-
-	// Special case for KQ6 Windows, which runs at 640x440: fill the bottom
-	// with zeroes (a black bar)
-	if (width == 640 && height == 440) {
-		for (int y = 440; y < 480; y += 4) {
-			for (int x = 0; x < width; x += 4, dstPtr += 2)
-				*((uint16*)dstPtr) = 0;
-
-			dstPtr += (dstPitch - 2 * width / 4);
-		}
-	}
 }
 
 static void createThumbnail(const uint8 *src, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height) {
@@ -193,17 +182,24 @@ static bool createThumbnail(Graphics::Surface &out, Graphics::Surface &in) {
 			src += in.pitch;
 		}
 
+		in.free();
+		in = newscreen;
+	} else if (width == 640 && inHeight == 440) {
+		// Special case to handle KQ6 Windows: resize the screen to 640x480,
+		// adding a black band in the bottom.
+		inHeight = 480;
+
+		Graphics::Surface newscreen;
+		newscreen.create(width, 480, in.bytesPerPixel);
+
+		memcpy(newscreen.getBasePtr(0, 0), in.getBasePtr(0, 0), width * 440 * in.bytesPerPixel);
+
 		in.free();
 		in = newscreen;
 	}
 
 	uint16 newHeight = !(inHeight % 240) ? kThumbnailHeight2 : kThumbnailHeight1;
 
-	// Special case for KQ6 Windows, which runs at 640x440: expand the
-	// thumbnail so that it fits
-	if (width == 640 && inHeight == 440)
-		newHeight = kThumbnailHeight2;
-
 	out.create(kThumbnailWidth, newHeight, sizeof(uint16));
 	createThumbnail((const uint8 *)in.pixels, width * sizeof(uint16), (uint8 *)out.pixels, out.pitch, width, inHeight);
 
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