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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.
*
*/
/*
* Based on
* WebVenture (c) 2010, Sean Kasun
* https://github.com/mrkite/webventure, http://seancode.com/webventure/
*
* Used with explicit permission from the author
*/
#ifndef MACVENTURE_IMAGE_H
#define MACVENTURE_IMAGE_H
#include "macventure/macventure.h"
#include "macventure/container.h"
namespace MacVenture {
typedef uint32 ObjID;
class Container;
enum BlitMode {
kBlitDirect = 0,
kBlitBIC = 1,
kBlitOR = 2,
kBlitXOR = 3
};
enum GraphicsEncoding {
kPPIC0 = 0,
kPPIC1 = 1,
kPPIC2 = 2,
kPPIC3 = 3
};
struct PPICHuff {
uint16 masks[17];
uint16 lens[17];
uint8 symbols[17];
};
class ImageAsset {
public:
ImageAsset(ObjID original, Container *container);
~ImageAsset();
void blitInto(Graphics::ManagedSurface *target, int x, int y, BlitMode mode);
bool isPointInside(Common::Point point);
bool isRectInside(Common::Rect rect);
int getWidth();
int getHeight();
private:
void decodePPIC(ObjID id, Common::Array<byte> &data, uint &bitHeight, uint &bitWidth, uint &rowBytes);
void decodePPIC0(Common::BitStream &stream, Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
void decodePPIC1(Common::BitStream &stream, Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
void decodePPIC2(Common::BitStream &stream, Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
void decodePPIC3(Common::BitStream &stream, Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
void decodeHuffGraphic(const PPICHuff &huff, Common::BitStream &stream, Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
byte walkHuff(const PPICHuff &huff, Common::BitStream &stream);
void blitDirect(Graphics::ManagedSurface *target, int ox, int oy, const Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
void blitBIC(Graphics::ManagedSurface *target, int ox, int oy, const Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
void blitOR(Graphics::ManagedSurface *target, int ox, int oy, const Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
void blitXOR(Graphics::ManagedSurface *target, int ox, int oy, const Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
void calculateSectionToDraw(Graphics::ManagedSurface *target, int &ox, int &oy, uint bitWidth, uint bitHeight, uint &sx, uint &sy, uint &w, uint &h);
void calculateSectionInDirection(uint targetWhole, uint originWhole, int &originPosition, uint &startPosition, uint &blittedWhole);
private:
ObjID _id;
ObjID _mask;
Container *_container;
uint16 _walkRepeat;
uint16 _walkLast;
Common::Array<byte> _imgData;
uint16 _imgRowBytes;
uint16 _imgBitWidth;
uint16 _imgBitHeight;
Common::Array<byte> _maskData;
uint16 _maskRowBytes;
uint16 _maskBitWidth;
uint16 _maskBitHeight;
};
} // End of namespace MacVenture
#endif
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