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https://github.com/libretro/scummvm.git
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117 lines
3.8 KiB
C++
117 lines
3.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/*
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* Based on
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* WebVenture (c) 2010, Sean Kasun
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* https://github.com/mrkite/webventure, http://seancode.com/webventure/
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*
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* Used with explicit permission from the author
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*/
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#ifndef MACVENTURE_IMAGE_H
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#define MACVENTURE_IMAGE_H
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#include "macventure/macventure.h"
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#include "macventure/container.h"
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#include "common/bitstream.h"
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namespace MacVenture {
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typedef uint32 ObjID;
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class Container;
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enum BlitMode {
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kBlitDirect = 0,
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kBlitBIC = 1,
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kBlitOR = 2,
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kBlitXOR = 3
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};
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enum GraphicsEncoding {
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kPPIC0 = 0,
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kPPIC1 = 1,
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kPPIC2 = 2,
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kPPIC3 = 3
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};
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struct PPICHuff {
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uint16 masks[17];
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uint16 lens[17];
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uint8 symbols[17];
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};
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class ImageAsset {
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public:
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ImageAsset(ObjID original, Container *container);
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~ImageAsset();
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void blitInto(Graphics::ManagedSurface *target, int x, int y, BlitMode mode);
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bool isPointInside(Common::Point point);
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bool isRectInside(Common::Rect rect);
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int getWidth();
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int getHeight();
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private:
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void decodePPIC(ObjID id, Common::Array<byte> &data, uint &bitHeight, uint &bitWidth, uint &rowBytes);
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void decodePPIC0(Common::BitStream32BEMSB &stream, Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
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void decodePPIC1(Common::BitStream32BEMSB &stream, Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
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void decodePPIC2(Common::BitStream32BEMSB &stream, Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
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void decodePPIC3(Common::BitStream32BEMSB &stream, Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
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void decodeHuffGraphic(const PPICHuff &huff, Common::BitStream32BEMSB &stream, Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
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byte walkHuff(const PPICHuff &huff, Common::BitStream32BEMSB &stream);
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void blitDirect(Graphics::ManagedSurface *target, int ox, int oy, const Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
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void blitBIC(Graphics::ManagedSurface *target, int ox, int oy, const Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
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void blitOR(Graphics::ManagedSurface *target, int ox, int oy, const Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
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void blitXOR(Graphics::ManagedSurface *target, int ox, int oy, const Common::Array<byte> &data, uint bitHeight, uint bitWidth, uint rowBytes);
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void calculateSectionToDraw(Graphics::ManagedSurface *target, int &ox, int &oy, uint bitWidth, uint bitHeight, uint &sx, uint &sy, uint &w, uint &h);
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void calculateSectionInDirection(uint targetWhole, uint originWhole, int &originPosition, uint &startPosition, uint &blittedWhole);
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private:
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ObjID _id;
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ObjID _mask;
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Container *_container;
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uint16 _walkRepeat;
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uint16 _walkLast;
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Common::Array<byte> _imgData;
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uint16 _imgRowBytes;
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uint16 _imgBitWidth;
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uint16 _imgBitHeight;
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Common::Array<byte> _maskData;
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uint16 _maskRowBytes;
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uint16 _maskBitWidth;
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uint16 _maskBitHeight;
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};
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} // End of namespace MacVenture
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#endif
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