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engines/wintermute/base/save_thumb_helper.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/>.
+ *
+ */
+
+/*
+ * This file is based on WME Lite.
+ * http://dead-code.org/redir.php?target=wmelite
+ * Copyright (c) 2011 Jan Nedoma
+ */
+
+#include "engines/wintermute/base/save_thumb_helper.h"
+#include "engines/wintermute/base/gfx/base_image.h"
+#include "engines/wintermute/base/gfx/base_renderer.h"
+#include "engines/wintermute/base/base_game.h"
+#include "engines/wintermute/dcgf.h"
+
+#include "graphics/scaler.h"
+
+namespace Wintermute {
+
+//////////////////////////////////////////////////////////////////////////
+SaveThumbHelper::SaveThumbHelper(BaseGame *inGame) : _game(inGame) {
+	_thumbnail = nullptr;
+	_scummVMThumb = nullptr;
+}
+
+//////////////////////////////////////////////////////////////////////////
+SaveThumbHelper::~SaveThumbHelper() {
+	SAFE_DELETE(_thumbnail);
+	SAFE_DELETE(_scummVMThumb);
+}
+
+BaseImage *SaveThumbHelper::storeThumb(bool doFlip, int width, int height) {
+	if (_game->_thumbnailWidth > 0 && _game->_thumbnailHeight > 0) {
+		if (doFlip) {
+			// when using opengl on windows it seems to be necessary to do this twice
+			// works normally for direct3d
+			_game->displayContent(false);
+			_game->_renderer->flip();
+
+			_game->displayContent(false);
+			_game->_renderer->flip();
+		}
+
+		// normal thumbnail
+		return _game->_renderer->takeScreenshot(width, height);
+	}
+	return nullptr;
+}
+
+//////////////////////////////////////////////////////////////////////////
+bool SaveThumbHelper::storeThumbnail(bool doFlip) {
+	SAFE_DELETE(_thumbnail);
+
+	if (_game->_thumbnailWidth > 0 && _game->_thumbnailHeight > 0) {
+		_thumbnail = storeThumb(doFlip, _game->_thumbnailWidth, _game->_thumbnailHeight);
+		if (!_thumbnail) {
+			return STATUS_FAILED;
+		}
+	}
+	storeScummVMThumbNail();
+	return STATUS_OK;
+}
+
+//////////////////////////////////////////////////////////////////////////
+bool SaveThumbHelper::storeScummVMThumbNail(bool doFlip) {
+	SAFE_DELETE(_scummVMThumb);
+
+	_scummVMThumb = storeThumb(doFlip, kThumbnailWidth, kThumbnailHeight2);
+	if (!_scummVMThumb) {
+		return STATUS_FAILED;
+	}
+	return STATUS_OK;
+}
+
+} // End of namespace Wintermute