1 files changed, 95 insertions, 0 deletions
diff --git a/engines/teenagent/surface.cpp b/engines/teenagent/surface.cpp
new file mode 100644
index 0000000000..154bbdb049
--- /dev/null
+++ b/engines/teenagent/surface.cpp
@@ -0,0 +1,95 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL: https://www.switchlink.se/svn/teen/surface.cpp $
+ * $Id: surface.cpp 214 2009-08-14 06:09:26Z megath $
+ */
+
+
+#include "surface.h"
+#include "pack.h"
+#include "common/stream.h"
+#include "common/debug.h"
+
+using namespace TeenAgent;
+
+Surface::Surface() : x(0), y(0) {
+	memset(flags, 0, sizeof(flags));
+}
+
+void Surface::load(Common::SeekableReadStream *stream, Type type) {
+	//debug(0, "load()");
+	free();
+	
+	x = y = 0;
+	memset(flags, 0, sizeof(flags));
+	
+	if (type == TypeOn) {
+		byte fn = stream->readByte();
+		if (stream->eos())
+			return;
+		
+		for(byte i = 0; i < fn; ++i) {
+			flags[i] = stream->readUint16LE();
+			debug(0, "flags[%u] = %u (0x%04x)", i, flags[i], flags[i]);
+		}
+	}
+	
+	uint16 w_ = stream->readUint16LE();
+	uint16 h_ = stream->readUint16LE();
+	
+	if (type != TypeLan) {
+		uint16 pos = stream->readUint16LE();
+		x = pos % 320;
+		y = pos / 320;
+	}
+
+	//debug(0, "declared info: %ux%u (%04xx%04x) -> %u,%u", w_, h_, w_, h_, x, y);
+	if (stream->eos() || w_ == 0)
+		return;
+		
+	if (w_ * h_ > stream->size()) {//rough but working
+		debug(0, "invalid surface %ux%u -> %u,%u", w_, h_, x, y);
+		return;
+	}
+
+	//debug(0, "creating surface %ux%u -> %u,%u", w_, h_, x, y);
+	create(w_, h_, 1);
+
+	stream->read(pixels, w_ * h_);
+}
+
+void Surface::render(Graphics::Surface * surface, int dx, int dy, bool mirror) {
+	assert(x + w <= surface->w);
+	assert(y + h <= surface->h);
+
+	byte *src = (byte *)pixels;
+	byte *dst = (byte *)surface->getBasePtr(dx + x, dy + y);
+	
+	for(int i = 0; i < h; ++i) {
+		for(int j = 0; j < w; ++j) {
+			byte p = src[j];
+			if (p != 0xff)
+				dst[mirror? w - j - 1: j] = p;
+		}
+		dst += surface->pitch;
+		src += pitch;
+	}
+}