From b407420ebb4249a1cc0fc40f10f90c0bd1fd0b9b Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Sun, 10 Feb 2008 18:34:48 +0000
Subject: Committed patch #1885629 "KYRA: HoF missing talkie credits and demo
 support".

svn-id: r30845
---
 engines/kyra/screen_v2.cpp | 61 +++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 52 insertions(+), 9 deletions(-)

(limited to 'engines/kyra/screen_v2.cpp')

diff --git a/engines/kyra/screen_v2.cpp b/engines/kyra/screen_v2.cpp
index a3a415c1d7..cb3967b73a 100644
--- a/engines/kyra/screen_v2.cpp
+++ b/engines/kyra/screen_v2.cpp
@@ -129,8 +129,8 @@ void Screen_v2::wsaFrameAnimationStep(int x1, int y1, int x2, int y2,
 	if (!calcBounds(cdm.w, cdm.h, x2, y2, w2, h2, na, nb, nc))
 		return;
 
-	uint8 * src = getPagePtr(srcPage) + y1 * 320;
-	uint8 * dst = getPagePtr(dstPage) + (y2 + cdm.sy) * 320;
+	const uint8 *src = getPagePtr(srcPage) + y1 * 320;
+	uint8 *dst = getPagePtr(dstPage) + (y2 + cdm.sy) * 320;
 
 	int u = -1;
 
@@ -138,8 +138,8 @@ void Screen_v2::wsaFrameAnimationStep(int x1, int y1, int x2, int y2,
 		int t = (nb * h1) / h2;
 		if (t != u) {
 			u = t;
-			uint8 * s = src + (x1 + t) * 320;
-			uint8 * dt = (uint8*) _wsaFrameAnimBuffer;
+			const uint8 *s = src + (x1 + t) * 320;
+			uint8 *dt = (uint8*) _wsaFrameAnimBuffer;
 
 			t = w2 - w1;
 			if (!t) {
@@ -208,13 +208,13 @@ void Screen_v2::cmpFadeFrameStep(int srcPage, int srcW, int srcH, int srcX, int
 	if (!calcBounds(dstW, dstH, X2, Y2, W2, H2, r4, r5, r6))
 		return;
 
-	uint8 * src = getPagePtr(srcPage) + srcW * (Y1 + r5);
-	uint8 * dst = getPagePtr(dstPage) + dstW * (Y2 + r2);
-	uint8 * cmp = getPagePtr(cmpPage);
+	const uint8 *src = getPagePtr(srcPage) + srcW * (Y1 + r5);
+	uint8 *dst = getPagePtr(dstPage) + dstW * (Y2 + r2);
+	const uint8 *cmp = getPagePtr(cmpPage);
 
 	while (H2--) {
-		uint8 * s = src + r4 + X1;
-		uint8 * d = dst + r1 + X2;
+		const uint8 *s = src + r4 + X1;
+		uint8 *d = dst + r1 + X2;
 
 		for (int i = 0; i < W2; i++) {
 			int ix = (*s++ << 8) + *d;
@@ -226,6 +226,49 @@ void Screen_v2::cmpFadeFrameStep(int srcPage, int srcW, int srcH, int srcX, int
 	}
 }
 
+void Screen_v2::copyPageMemory(int srcPage, int srcPos, int dstPage, int dstPos, int numBytes) {
+	const uint8 *src = getPagePtr(srcPage) + srcPos;
+	uint8 *dst = getPagePtr(dstPage) + dstPos;
+	memcpy(dst, src, numBytes);
+}
+
+
+void Screen_v2::copyRegionEx(int srcPage, int srcW, int srcH, int dstPage, int dstX,int dstY, int dstW, int dstH, const ScreenDim *dim, bool flag) {
+	int x0 = dim->sx << 3;
+	int y0 = dim->sy;
+	int w0 = dim->w << 3;
+	int h0 = dim->h;
+
+	int x1 = dstX;
+	int y1 = dstY;
+	int w1 = dstW;
+	int h1 = dstH;
+
+	int x2, y2, w2;
+
+	calcBounds(w0, h0, x1, y1, w1, h1, x2, y2, w2);
+
+	const uint8 *src = getPagePtr(srcPage) + (320 * srcH) + srcW;
+	uint8 *dst = getPagePtr(dstPage) + 320 * (y0 + y1);
+
+	for (int y = 0; y < h1; y++) {
+		const uint8 *s = src + x2;
+		uint8 *d = dst + x0 + x1;
+
+		if (flag)
+			d += (h1 >> 1);
+
+		for (int x = 0; x < w1; x++) {
+			if (*s)
+				*d = *s;
+			s++;
+			d++;
+		}
+		dst += 320;
+		src += 320;
+	}
+}
+
 bool Screen_v2::calcBounds(int w0, int h0, int &x1, int &y1, int &w1, int &h1, int &x2, int &y2, int &w2) {
 	x2 = 0;
 	y2 = 0;
-- 
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