mirror of
https://github.com/libretro/scummvm.git
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142 lines
3.5 KiB
C++
142 lines
3.5 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "common/savefile.h"
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#include "common/system.h"
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#include "image/png.h"
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#include "sludge/errors.h"
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#include "sludge/graphics.h"
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#include "sludge/imgloader.h"
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#include "sludge/newfatal.h"
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#include "sludge/version.h"
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namespace Sludge {
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bool GraphicsManager::setThumbnailSize(int thumbWidth, int thumbHeight) {
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if (checkSizeValide(thumbWidth, thumbHeight))
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{
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_thumbWidth = thumbWidth;
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_thumbHeight = thumbHeight;
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return true;
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}
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return false;
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}
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bool GraphicsManager::saveThumbnail(Common::WriteStream *stream) {
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stream->writeUint32LE(_thumbWidth);
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stream->writeUint32LE(_thumbHeight);
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if (_thumbWidth && _thumbHeight) {
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if (!freeze())
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return false;
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if(!Image::writePNG(*stream, _renderSurface))
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return false;
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unfreeze(true);
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}
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stream->writeByte('!');
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return true;
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}
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void GraphicsManager::showThumbnail(const Common::String &filename, int atX, int atY) {
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Common::InSaveFile *fp = g_system->getSavefileManager()->openForLoading(filename);
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if (fp == nullptr)
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return;
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bool headerBad = false;
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if (fp->readByte() != 'S')
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headerBad = true;
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if (fp->readByte() != 'L')
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headerBad = true;
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if (fp->readByte() != 'U')
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headerBad = true;
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if (fp->readByte() != 'D')
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headerBad = true;
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if (fp->readByte() != 'S')
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headerBad = true;
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if (fp->readByte() != 'A')
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headerBad = true;
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if (headerBad) {
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fatal(ERROR_GAME_LOAD_NO, filename);
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return;
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}
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char c = fp->readByte();
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while ((c = fp->readByte()))
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;
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int majVersion = fp->readByte();
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int minVersion = fp->readByte();
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int ssgVersion = VERSION(majVersion, minVersion);
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if (ssgVersion >= VERSION(1, 4)) {
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int fileWidth = fp->readUint32LE();
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int fileHeight = fp->readUint32LE();
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Graphics::ManagedSurface thumbnail;
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if (!ImgLoader::loadPNGImage(fp, thumbnail.surfacePtr()))
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return;
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delete fp;
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fp = nullptr;
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if (atX < 0) {
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fileWidth += atX;
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atX = 0;
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}
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if (atY < 0) {
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fileHeight += atY;
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atY = 0;
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}
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if (fileWidth + atX > (int)_sceneWidth)
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fileWidth = _sceneWidth - atX;
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if (fileHeight + atY > (int)_sceneHeight)
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fileHeight = _sceneHeight - atY;
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thumbnail.blendBlitTo(_backdropSurface, atX, atY, Graphics::FLIP_NONE, nullptr, MS_ARGB((uint)255, (uint)255, (uint)255, (uint)255), fileWidth, fileHeight);
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thumbnail.free();
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}
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}
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bool GraphicsManager::skipThumbnail(Common::SeekableReadStream *stream) {
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_thumbWidth = stream->readUint32LE();
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_thumbHeight = stream->readUint32LE();
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// Load image
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Graphics::Surface tmp;
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if (_thumbWidth & _thumbHeight) {
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if (!ImgLoader::loadPNGImage(stream, &tmp))
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return false;
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else
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tmp.free();
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}
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// Check flag
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return (stream->readByte() == '!');
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return true;
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}
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} // End of namespace Sludge
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