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Diffstat (limited to 'engines/scumm/thumbnail.cpp')
-rw-r--r-- | engines/scumm/thumbnail.cpp | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/engines/scumm/thumbnail.cpp b/engines/scumm/thumbnail.cpp deleted file mode 100644 index 40f1ee48e5..0000000000 --- a/engines/scumm/thumbnail.cpp +++ /dev/null @@ -1,130 +0,0 @@ -/* 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 file 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. - * - * $URL$ - * $Id$ - * - */ - - -#include "common/system.h" -#include "common/savefile.h" -#include "graphics/scaler.h" -#include "scumm/scumm.h" - -namespace Scumm { - -#define THMB_VERSION 1 - -struct ThumbnailHeader { - uint32 type; - uint32 size; - byte version; - uint16 width, height; - byte bpp; -}; - -#define ThumbnailHeaderSize (4+4+1+2+2+1) - -inline void colorToRGB(uint16 color, uint8 &r, uint8 &g, uint8 &b) { - r = (((color >> 11) & 0x1F) << 3); - g = (((color >> 5) & 0x3F) << 2); - b = ((color&0x1F) << 3); -} - -Graphics::Surface *ScummEngine::loadThumbnail(Common::SeekableReadStream *file) { - ThumbnailHeader header; - - header.type = file->readUint32BE(); - // We also accept the bad 'BMHT' header here, for the sake of compatibility - // with some older savegames which were written incorrectly due to a bug in - // ScummVM which wrote the thumb header type incorrectly on LE systems. - if (header.type != MKID_BE('THMB') && header.type != MKID_BE('BMHT')) - return 0; - - header.size = file->readUint32BE(); - header.version = file->readByte(); - - if (header.version > THMB_VERSION) { - file->skip(header.size - 9); - warning("Loading a newer thumbnail version"); - return 0; - } - - header.width = file->readUint16BE(); - header.height = file->readUint16BE(); - header.bpp = file->readByte(); - - // TODO: support other bpp values than 2 - if (header.bpp != 2) { - file->skip(header.size - 14); - return 0; - } - - Graphics::Surface *thumb = new Graphics::Surface(); - thumb->create(header.width, header.height, sizeof(OverlayColor)); - - OverlayColor* pixels = (OverlayColor *)thumb->pixels; - - for (int y = 0; y < thumb->h; ++y) { - for (int x = 0; x < thumb->w; ++x) { - uint8 r, g, b; - colorToRGB(file->readUint16BE(), r, g, b); - - // converting to current OSystem Color - *pixels++ = _system->RGBToColor(r, g, b); - } - } - - return thumb; -} - -void ScummEngine::saveThumbnail(Common::OutSaveFile *file) { - Graphics::Surface thumb; - -#if !defined(__DS__) - if (!createThumbnailFromScreen(&thumb)) -#endif - thumb.create(kThumbnailWidth, kThumbnailHeight2, sizeof(uint16)); - - ThumbnailHeader header; - header.type = MKID_BE('THMB'); - header.size = ThumbnailHeaderSize + thumb.w*thumb.h*thumb.bytesPerPixel; - header.version = THMB_VERSION; - header.width = thumb.w; - header.height = thumb.h; - header.bpp = thumb.bytesPerPixel; - - file->writeUint32BE(header.type); - file->writeUint32BE(header.size); - file->writeByte(header.version); - file->writeUint16BE(header.width); - file->writeUint16BE(header.height); - file->writeByte(header.bpp); - - // TODO: for later this shouldn't be casted to uint16... - uint16* pixels = (uint16 *)thumb.pixels; - for (uint16 p = 0; p < thumb.w*thumb.h; ++p, ++pixels) - file->writeUint16BE(*pixels); - - thumb.free(); -} - -} // end of namespace Scumm |