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engines/ultima/ultima8/gfx/shape_archive.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 "ultima/ultima8/misc/debugger.h"
+
+#include "ultima/ultima8/gfx/shape_archive.h"
+#include "ultima/ultima8/gfx/shape.h"
+#include "ultima/ultima8/convert/convert_shape.h"
+
+namespace Ultima {
+namespace Ultima8 {
+
+ShapeArchive::~ShapeArchive() {
+	Archive::uncache();
+}
+
+Shape *ShapeArchive::getShape(uint32 shapenum) {
+	if (shapenum >= _count)
+		return nullptr;
+	cache(shapenum);
+
+	return _shapes[shapenum];
+}
+
+void ShapeArchive::cache(uint32 shapenum) {
+	if (shapenum >= _count) return;
+	if (_shapes.empty()) _shapes.resize(_count);
+
+	if (_shapes[shapenum]) return;
+
+	uint32 shpsize;
+	uint8 *data = getRawObject(shapenum, &shpsize);
+
+	if (!data || shpsize == 0) return;
+
+	// Auto detect format
+	if (!_format) {
+		_format = Shape::DetectShapeFormat(data, shpsize);
+	}
+
+	if (!_format) {
+		delete [] data;
+		warning("Unable to detect shape format for flex.");
+		return;
+	}
+
+	Shape *shape = new Shape(data, shpsize, _format, _id, shapenum);
+	if (_palette) shape->setPalette(_palette);
+
+	_shapes[shapenum] = shape;
+}
+
+void ShapeArchive::uncache(uint32 shapenum) {
+	if (shapenum >= _count) return;
+	if (_shapes.empty()) return;
+
+	delete _shapes[shapenum];
+	_shapes[shapenum] = nullptr;
+}
+
+bool ShapeArchive::isCached(uint32 shapenum) const {
+	if (shapenum >= _count) return false;
+	if (_shapes.empty()) return false;
+
+	return (_shapes[shapenum] != nullptr);
+}
+
+} // End of namespace Ultima8
+} // End of namespace Ultima