bitmap.h

/* 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/>.
 *
 */
 
#ifndef HARVESTER_BITMAP_H
#define HARVESTER_BITMAP_H
 
#include "common/array.h"
 
namespace Graphics {
class ManagedSurface;
}
 
namespace Harvester {
 
struct IndexedBitmap {
    uint32 width = 0;
    uint32 height = 0;
    Common::Array<byte> pixels;
 
    bool isValid() const {
        return width != 0 && height != 0 && pixels.size() >= width * height;
    }
};
 
struct AbmFrame : IndexedBitmap {
    int32 xOffset = 0;
    int32 yOffset = 0;
};
 
// Draw unscaled pixels with index 0 transparent; callers supply the final position.
void blitTransparentBitmap(Graphics::ManagedSurface &surface, const IndexedBitmap &bitmap, int x, int y);
 
// Callers choose when to clear output. Failed decoding can leave partial header or frame data.
bool decodeBitmap(const Common::Array<byte> &data, IndexedBitmap &bitmap);
bool decodeAbm(const Common::Array<byte> &data, Common::Array<AbmFrame> &frames);
 
} // End of namespace Harvester
 
#endif // HARVESTER_BITMAP_H