Initial commit

engines/teenagent/surface_list.cpp

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "teenagent/surface_list.h"
+#include "teenagent/surface.h"
+#include "teenagent/objects.h"
+#include "teenagent/teenagent.h"
+
+namespace TeenAgent {
+
+SurfaceList::SurfaceList() : surfaces(NULL), surfacesCount(0) {}
+
+SurfaceList::~SurfaceList() {
+	free();
+}
+
+void SurfaceList::load(Common::SeekableReadStream &stream, int subHack) {
+	free();
+
+	byte fn = stream.readByte();
+	if (stream.eos())
+		return;
+
+	surfacesCount = fn - subHack;
+	debugC(0, kDebugSurface, "loading %u surfaces from list (skip %d)", surfacesCount, subHack);
+
+	if (surfacesCount == 0)
+		return;
+
+	surfaces = new Surface[surfacesCount];
+
+	for (byte i = 0; i < surfacesCount; ++i) {
+		uint offset = stream.readUint16LE();
+		uint pos = stream.pos();
+		stream.seek(offset);
+		surfaces[i].load(stream, Surface::kTypeOns);
+		stream.seek(pos);
+	}
+}
+
+void SurfaceList::free() {
+	delete[] surfaces;
+	surfaces = NULL;
+	surfacesCount = 0;
+}
+
+void SurfaceList::render(Graphics::Surface *surface, const Common::Rect &clip) const {
+	for (uint i = 0; i < surfacesCount; ++i) {
+		const Surface &s = surfaces[i];
+		Common::Rect r(s.x, s.y, s.x + s.w, s.y + s.h);
+		if (r.bottom < clip.bottom || !clip.intersects(r))
+			continue;
+
+		r.clip(clip);
+		r.translate(-s.x, -s.y);
+		s.render(surface, r.left, r.top, false, r);
+	}
+}
+
+}