DIRECTOR: Add initial for support DIB resource

1 files changed, 108 insertions, 0 deletions

diff --git a/engines/director/dib.cpp b/engines/director/dib.cpp
new file mode 100644
index 0000000000..3cf23d6982
--- /dev/null
+++ b/engines/director/dib.cpp
@@ -0,0 +1,108 @@
+/* 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 "director/dib.h"
+
+#include "common/stream.h"
+#include "common/substream.h"
+#include "common/textconsole.h"
+#include "graphics/pixelformat.h"
+#include "graphics/surface.h"
+#include "image/codecs/codec.h"
+#include "common/debug.h"
+
+namespace Director {
+
+DIBDecoder::DIBDecoder() {
+	_surface = 0;
+	_palette = 0;
+	_paletteColorCount = 0;
+	_codec = 0;
+}
+
+DIBDecoder::~DIBDecoder() {
+	destroy();
+}
+
+void DIBDecoder::destroy() {
+	_surface = 0;
+
+	delete[] _palette;
+	_palette = 0;
+
+	_paletteColorCount = 0;
+
+	delete _codec;
+	_codec = 0;
+}
+
+void DIBDecoder::loadPalette(Common::SeekableReadStream &stream) {
+	uint16 palentries = 256;
+	_palette = new byte[1024];
+
+	uint16 size = stream.size();
+	uint16 index = 0;
+	for (int i = 6; i < stream.size() + 6; i+=6) {
+		uint16 n = size - i;
+		if (i >= palentries) {
+			break;
+		}
+		stream.seek(n + 4);
+		_palette[index] = stream.readByte();
+		++index;
+		stream.seek(n + 2);
+		_palette[index] = stream.readByte();
+		++index;
+		stream.seek(n);
+		_palette[index] = stream.readByte();
+		++index;
+		_palette[index] = 0;
+		++index;
+	}
+	while (index < 1024) {
+		_palette[index] = 0;
+		++index;
+	}
+}	
+
+bool DIBDecoder::loadStream(Common::SeekableReadStream &stream) {
+	destroy();
+	if (stream.readByte() != 40)
+		return false;
+	if (stream.readByte() != 0)
+		return false;
+
+	stream.seek(4);
+	uint16 width = stream.readUint32LE();
+	uint16 height = stream.readUint32LE();
+	_paletteColorCount = (stream.readUint32LE() + stream.readUint32LE()) << 8;
+	_paletteColorCount = (_paletteColorCount == 0) ? 255: _paletteColorCount;
+	uint16 totalsize = 14 + stream.size() + sizeof(_palette)/sizeof(byte);
+
+	debug("%d", _paletteColorCount);
+	debug("%d", width);
+	debug("%d", height);
+	debug("%d", totalsize);
+	return true;
+}
+
+} // End of namespace Director