mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-17 07:07:10 +00:00
82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/* 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 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, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
*/
|
|
|
|
#include "common/debug.h"
|
|
#include "common/stream.h"
|
|
#include "image/png.h"
|
|
#include "graphics/surface.h"
|
|
|
|
#include "sludge/allfiles.h"
|
|
#include "sludge/hsi.h"
|
|
#include "sludge/imgloader.h"
|
|
#include "sludge/sludge.h"
|
|
|
|
namespace Sludge {
|
|
|
|
bool ImgLoader::loadImage(Common::SeekableReadStream *stream, Graphics::Surface *dest, int reserve) {
|
|
debugC(3, kSludgeDebugGraphics, "Loading image at position: %i", stream->pos());
|
|
int32 start_ptr = stream->pos();
|
|
if (!loadPNGImage(stream, dest)) {
|
|
stream->seek(start_ptr);
|
|
if (!loadHSIImage(stream, dest, reserve)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool ImgLoader::loadPNGImage(Common::SeekableReadStream *stream, Graphics::Surface *dest, bool checkSig) {
|
|
::Image::PNGDecoder png;
|
|
|
|
// set skip signature
|
|
if (!checkSig) {
|
|
png.setSkipSignature(true);
|
|
}
|
|
|
|
if (!png.loadStream(*stream))
|
|
return false;
|
|
|
|
// set value back
|
|
if (!checkSig) {
|
|
png.setSkipSignature(false);
|
|
}
|
|
|
|
const Graphics::Surface *sourceSurface = png.getSurface();
|
|
Graphics::Surface *pngSurface = sourceSurface->convertTo(*g_sludge->getScreenPixelFormat(), png.getPalette());
|
|
dest->copyFrom(*pngSurface);
|
|
pngSurface->free();
|
|
delete pngSurface;
|
|
return true;
|
|
}
|
|
|
|
bool ImgLoader::loadHSIImage(Common::SeekableReadStream *stream, Graphics::Surface *dest, int reserve) {
|
|
HSIDecoder hsiDecoder;
|
|
hsiDecoder.setReserve(reserve);
|
|
if (!hsiDecoder.loadStream(*stream)) {
|
|
return false;
|
|
}
|
|
dest->copyFrom(*(hsiDecoder.getSurface()));
|
|
return true;
|
|
}
|
|
|
|
} // End of namespace Sludge
|