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engines/mtropolis/asset_factory.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 "mtropolis/asset_factory.h"
+#include "mtropolis/assets.h"
+
+namespace MTropolis {
+
+AssetLoaderContext::AssetLoaderContext(size_t pStreamIndex) : streamIndex(pStreamIndex) {
+}
+
+template<typename TAsset, typename TAssetData>
+class AssetFactory {
+public:
+	static Common::SharedPtr<Asset> createAsset(AssetLoaderContext &context, const Data::DataObject &dataObject);
+	static SIAssetFactory *getInstance();
+
+private:
+	static SIAssetFactory _instance;
+};
+
+template<typename TAsset, typename TAssetData>
+Common::SharedPtr<Asset> AssetFactory<TAsset, TAssetData>::createAsset(AssetLoaderContext &context, const Data::DataObject &dataObject) {
+	Common::SharedPtr<TAsset> asset(new TAsset());
+
+	if (!asset->load(context, static_cast<const TAssetData &>(dataObject)))
+		asset.reset();
+
+	return Common::SharedPtr<Asset>(asset);
+}
+
+template<typename TAsset, typename TAssetData>
+SIAssetFactory *AssetFactory<TAsset, TAssetData>::getInstance() {
+	return &_instance;
+}
+
+template<typename TAsset, typename TAssetData>
+SIAssetFactory AssetFactory<TAsset, TAssetData>::_instance = {
+	AssetFactory<TAsset, TAssetData>::createAsset
+};
+
+SIAssetFactory *getAssetFactoryForDataObjectType(const Data::DataObjectTypes::DataObjectType dataObjectType) {
+	switch (dataObjectType) {
+	case Data::DataObjectTypes::kColorTableAsset:
+		return AssetFactory<ColorTableAsset, Data::ColorTableAsset>::getInstance();
+	case Data::DataObjectTypes::kAudioAsset:
+		return AssetFactory<AudioAsset, Data::AudioAsset>::getInstance();
+	case Data::DataObjectTypes::kMovieAsset:
+		return AssetFactory<MovieAsset, Data::MovieAsset>::getInstance();
+	case Data::DataObjectTypes::kAVIMovieAsset:
+		return AssetFactory<AVIMovieAsset, Data::AVIMovieAsset>::getInstance();
+	case Data::DataObjectTypes::kImageAsset:
+		return AssetFactory<ImageAsset, Data::ImageAsset>::getInstance();
+	case Data::DataObjectTypes::kMToonAsset:
+		return AssetFactory<MToonAsset, Data::MToonAsset>::getInstance();
+	case Data::DataObjectTypes::kTextAsset:
+		return AssetFactory<TextAsset, Data::TextAsset>::getInstance();
+
+	default:
+		return nullptr;
+	}
+}
+
+} // End of namespace MTropolis