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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 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 "director/dib.h"
#include "common/stream.h"
#include "common/substream.h"
#include "common/textconsole.h"
#include "graphics/pixelformat.h"
#include "graphics/surface.h"
#include "graphics/palette.h"
#include "image/codecs/codec.h"
#include "common/util.h"
#include "common/debug.h"
#include "image/codecs/bmp_raw.h"
#include "common/system.h"
namespace Director {
DIBDecoder::DIBDecoder() {
_surface = 0;
_palette = 0;
_paletteColorCount = 0;
_codec = 0;
}
DIBDecoder::~DIBDecoder() {
destroy();
}
void DIBDecoder::destroy() {
_surface = 0;
delete[] _palette;
_palette = 0;
_paletteColorCount = 0;
delete _codec;
_codec = 0;
}
void DIBDecoder::loadPalette(Common::SeekableReadStream &stream) {
uint16 steps = stream.size() / 6;
uint16 index = (steps * 3) - 1;
_paletteColorCount = steps;
_palette = new byte[index + 1];
for (uint8 i = 0; i < steps; i++) {
_palette[index - 2] = stream.readByte();
stream.readByte();
_palette[index - 1] = stream.readByte();
stream.readByte();
_palette[index] = stream.readByte();
stream.readByte();
index -= 3;
}
}
bool DIBDecoder::loadStream(Common::SeekableReadStream &stream) {
uint32 headerSize = stream.readUint32LE();
if (headerSize != 40)
return false;
uint32 width = stream.readUint32LE();
uint32 height = stream.readUint32LE();
stream.readUint16LE(); // planes
uint16 bitsPerPixel = stream.readUint16LE();
uint32 compression = stream.readUint32BE();
uint32 imageSize = stream.readUint32LE();
/* uint32 pixelsPerMeterX = */ stream.readUint32LE();
/* uint32 pixelsPerMeterY = */ stream.readUint32LE();
_paletteColorCount = stream.readUint32LE();
/* uint32 colorsImportant = */ stream.readUint32LE();
_paletteColorCount = (_paletteColorCount == 0) ? 255: _paletteColorCount;
uint16 imageRawSize = stream.size() - 40;
Common::SeekableSubReadStream subStream(&stream, 40, stream.size());
_codec = Image::createBitmapCodec(compression, width, height, bitsPerPixel);
if (!_codec)
return false;
_surface = _codec->decodeFrame(subStream);
return true;
}
} // End of namespace Director
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