TWINE: brick parser

engines/twine/module.mk

@@ -16,6 +16,7 @@ MODULE_OBJS := \
 	parser/anim.o \
 	parser/body.o \
 	parser/entity.o \
+	parser/brick.o \
 	parser/parser.o \
 	parser/sprite.o \
 	\

engines/twine/parser/brick.cpp

@@ -0,0 +1,60 @@
+/* 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.
+ *
+ */
+
+#include "twine/parser/brick.h"
+#include "common/debug.h"
+#include "common/memstream.h"
+
+namespace TwinE {
+
+bool BrickData::loadFromStream(Common::SeekableReadStream &stream) {
+	int width = stream.readByte();
+	int height = stream.readByte();
+	_offsetX = stream.readByte();
+	_offsetY = stream.readByte();
+	const int maxY = _offsetY + height;
+	const Graphics::PixelFormat format = Graphics::PixelFormat::createFormatCLUT8();
+	_surface.create(width, height, format);
+	for (int y = _offsetY; y < maxY; ++y) {
+		const uint8 numRuns = stream.readByte();
+		int x = _offsetX;
+		for (uint8 run = 0; run < numRuns; ++run) {
+			const uint8 runSpec = stream.readByte();
+			const uint8 runLength = bits(runSpec, 0, 6) + 1;
+			const uint8 type = bits(runSpec, 6, 2);
+			if (type == 2) {
+				uint8 *start = (uint8 *)_surface.getBasePtr(x, y);
+				uint8 *end = (uint8 *)_surface.getBasePtr(x + runLength, y);
+				Common::fill(start, end, stream.readByte());
+			} else if (type == 1 || type == 3) {
+				uint8 *start = (uint8 *)_surface.getBasePtr(x, y);
+				for (uint8 i = 0; i < runLength; ++i) {
+					*start++ = stream.readByte();
+				}
+			}
+			x += runLength;
+		}
+	}
+	return !stream.err();
+}
+
+} // namespace TwinE

engines/twine/parser/brick.h

@@ -0,0 +1,58 @@
+/* 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.
+ *
+ */
+
+#ifndef TWINE_BRICK_H
+#define TWINE_BRICK_H
+
+#include "common/memstream.h"
+#include "common/stream.h"
+#include "graphics/managed_surface.h"
+#include "twine/parser/parser.h"
+#include "twine/shared.h"
+
+namespace TwinE {
+
+class BrickData : public Parser {
+private:
+	Graphics::ManagedSurface _surface;
+	int _offsetX = 0;
+	int _offsetY = 0;
+
+public:
+	bool loadFromStream(Common::SeekableReadStream &stream) override;
+
+	inline const Graphics::ManagedSurface &surface() const {
+		return _surface;
+	}
+
+	inline int offsetX() const {
+		return _offsetX;
+	}
+
+	inline int offsetY() const {
+		return _offsetY;
+	}
+};
+
+} // End of namespace TwinE
+
+#endif