From 6a46429c448aa3899fa93e49dc36cd3617b922c7 Mon Sep 17 00:00:00 2001
From: Bertrand Augereau
Date: Tue, 30 Aug 2011 10:56:49 +0200
Subject: DREAMWEB: 'transferinv' ported to C++

---
 engines/dreamweb/dreamgen.cpp | 50 -------------------------------------------
 engines/dreamweb/dreamgen.h   |  3 +--
 engines/dreamweb/stubs.h      |  1 +
 engines/dreamweb/vgagrafx.cpp | 17 +++++++++++++++
 4 files changed, 19 insertions(+), 52 deletions(-)

(limited to 'engines/dreamweb')

diff --git a/engines/dreamweb/dreamgen.cpp b/engines/dreamweb/dreamgen.cpp
index bfead17dc7..ee034448b5 100644
--- a/engines/dreamweb/dreamgen.cpp
+++ b/engines/dreamweb/dreamgen.cpp
@@ -2766,55 +2766,6 @@ void DreamGenContext::createpanel2() {
 	showframe();
 }
 
-void DreamGenContext::transferinv() {
-	STACK_CHECK;
-	di = data.word(kExframepos);
-	push(di);
-	al = data.byte(kExpos);
-	ah = 0;
-	bx = ax;
-	_add(ax, ax);
-	_add(ax, bx);
-	_inc(ax);
-	cx = 6;
-	_mul(cx);
-	es = data.word(kExtras);
-	bx = (0);
-	_add(bx, ax);
-	_add(di, (0+2080));
-	push(bx);
-	al = data.byte(kItemtotran);
-	ah = 0;
-	bx = ax;
-	_add(ax, ax);
-	_add(ax, bx);
-	_inc(ax);
-	cx = 6;
-	_mul(cx);
-	ds = data.word(kFreeframes);
-	bx = (0);
-	_add(bx, ax);
-	si = (0+2080);
-	al = ds.byte(bx);
-	ah = 0;
-	cl = ds.byte(bx+1);
-	ch = 0;
-	_add(si, ds.word(bx+2));
-	dx = ds.word(bx+4);
-	bx = pop();
-	es.byte(bx+0) = al;
-	es.byte(bx+1) = cl;
-	es.word(bx+4) = dx;
-	_mul(cx);
-	cx = ax;
-	push(cx);
-	_movsb(cx, true);
-	cx = pop();
-	ax = pop();
-	es.word(bx+2) = ax;
-	_add(data.word(kExframepos), cx);
-}
-
 void DreamGenContext::transfermap() {
 	STACK_CHECK;
 	di = data.word(kExframepos);
@@ -17732,7 +17683,6 @@ void DreamGenContext::__dispatch_call(uint16 addr) {
 		case addr_createpanel2: createpanel2(); break;
 		case addr_vsync: vsync(); break;
 		case addr_doshake: doshake(); break;
-		case addr_transferinv: transferinv(); break;
 		case addr_transfermap: transfermap(); break;
 		case addr_fadedos: fadedos(); break;
 		case addr_dofade: dofade(); break;
diff --git a/engines/dreamweb/dreamgen.h b/engines/dreamweb/dreamgen.h
index 963a864bb3..196c630d56 100644
--- a/engines/dreamweb/dreamgen.h
+++ b/engines/dreamweb/dreamgen.h
@@ -557,7 +557,6 @@ public:
 	static const uint16 addr_dofade = 0xc24c;
 	static const uint16 addr_fadedos = 0xc248;
 	static const uint16 addr_transfermap = 0xc244;
-	static const uint16 addr_transferinv = 0xc240;
 	static const uint16 addr_doshake = 0xc20c;
 	static const uint16 addr_vsync = 0xc208;
 	static const uint16 addr_createpanel2 = 0xc200;
@@ -1775,7 +1774,7 @@ public:
 	void look();
 	void setmouse();
 	//void checkone();
-	void transferinv();
+	//void transferinv();
 	void candles2();
 	void pickupob();
 	void error();
diff --git a/engines/dreamweb/stubs.h b/engines/dreamweb/stubs.h
index 7c4f43acd3..f025e382e4 100644
--- a/engines/dreamweb/stubs.h
+++ b/engines/dreamweb/stubs.h
@@ -202,4 +202,5 @@
 	void getexpos();
 	void paneltomap();
 	void obpicture();
+	void transferinv();
 
diff --git a/engines/dreamweb/vgagrafx.cpp b/engines/dreamweb/vgagrafx.cpp
index 00fb1715ef..235d28cc01 100644
--- a/engines/dreamweb/vgagrafx.cpp
+++ b/engines/dreamweb/vgagrafx.cpp
@@ -415,5 +415,22 @@ void DreamGenContext::paneltomap() {
 	multiget(segRef(data.word(kMapstore)).ptr(0, 0), data.word(kMapxstart) + data.word(kMapadx), data.word(kMapystart) + data.word(kMapady), data.byte(kMapxsize), data.byte(kMapysize));
 }
 
+void DreamGenContext::transferinv() {
+	const Frame *freeFrames = (const Frame *)segRef(data.word(kFreeframes)).ptr(kFrframedata, 0);
+	const Frame *freeFrame = freeFrames + (3 * data.byte(kItemtotran) + 1);
+	Frame *exFrames = (Frame *)segRef(data.word(kExtras)).ptr(kExframedata, 0);
+	Frame *exFrame = exFrames + (3 * data.byte(kExpos) + 1);
+	exFrame->width = freeFrame->width;
+	exFrame->height = freeFrame->height;
+	exFrame->x = freeFrame->x;
+	exFrame->y = freeFrame->y;
+	uint16 byteCount = freeFrame->width * freeFrame->height;
+	const uint8 *src = segRef(data.word(kFreeframes)).ptr(kFrframes + freeFrame->ptr(), byteCount);
+	uint8 *dst = segRef(data.word(kExtras)).ptr(kExframes + data.word(kExframepos), byteCount);
+	memcpy(dst, src, byteCount);
+	exFrame->setPtr(data.word(kExframepos));
+	data.word(kExframepos) += byteCount;
+}
+
 } /*namespace dreamgen */
 
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