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28d4df575a
Sierra's scaling algorithm used the mirror flag to calculate the scaling table. When set, it produces slightly different results than reversing the results when the mirror flag is not set.
115 lines
3.9 KiB
C++
115 lines
3.9 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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#ifndef SCI_GRAPHICS_VIEW_H
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#define SCI_GRAPHICS_VIEW_H
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#include "sci/util.h"
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namespace Sci {
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struct CelInfo {
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int16 width, height;
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int16 scriptWidth, scriptHeight;
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int16 displaceX;
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int16 displaceY;
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byte clearKey;
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uint16 offsetEGA;
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uint32 offsetRLE;
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uint32 offsetLiteral;
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Common::SpanOwner<SciSpan<const byte> > rawBitmap;
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};
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struct LoopInfo {
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bool mirrorFlag;
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Common::Array<CelInfo> cel;
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};
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enum {
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SCI_VIEW_EGAMAPPING_SIZE = 16,
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SCI_VIEW_EGAMAPPING_COUNT = 8
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};
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class GfxScreen;
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class GfxPalette;
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class Resource;
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/**
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* View class, handles loading of view resources and drawing contained cels to screen
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* every view resource has its own instance of this class
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*/
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class GfxView {
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public:
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GfxView(ResourceManager *resMan, GfxScreen *screen, GfxPalette *palette, GuiResourceId resourceId);
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~GfxView();
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GuiResourceId getResourceId() const;
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int16 getWidth(int16 loopNo, int16 celNo) const;
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int16 getHeight(int16 loopNo, int16 celNo) const;
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const CelInfo *getCelInfo(int16 loopNo, int16 celNo) const;
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void getCelRect(int16 loopNo, int16 celNo, int16 x, int16 y, int16 z, Common::Rect &outRect) const;
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void getCelSpecialHoyle4Rect(int16 loopNo, int16 celNo, int16 x, int16 y, int16 z, Common::Rect &outRect) const;
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void getCelScaledRect(int16 loopNo, int16 celNo, int16 x, int16 y, int16 z, int16 scaleX, int16 scaleY, Common::Rect &outRect) const;
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const SciSpan<const byte> &getBitmap(int16 loopNo, int16 celNo);
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void draw(const Common::Rect &rect, const Common::Rect &clipRect, const Common::Rect &clipRectTranslated, int16 loopNo, int16 celNo, byte priority, uint16 EGAmappingNr, bool upscaledHires, uint16 scaleSignal = 0);
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void drawScaled(const Common::Rect &rect, const Common::Rect &clipRect, const Common::Rect &clipRectTranslated, int16 loopNo, int16 celNo, byte priority, int16 scaleX, int16 scaleY, uint16 scaleSignal = 0);
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uint16 getLoopCount() const { return _loop.size(); }
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uint16 getCelCount(int16 loopNo) const;
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Palette *getPalette();
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bool isScaleable();
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void adjustToUpscaledCoordinates(int16 &y, int16 &x);
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void adjustBackUpscaledCoordinates(int16 &y, int16 &x);
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private:
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void initData();
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void unpackCel(int16 loopNo, int16 celNo, SciSpan<byte> &outPtr);
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void unditherBitmap(SciSpan<byte> &bitmap, int16 width, int16 height, byte clearKey);
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byte getMappedColor(byte color, uint16 scaleSignal, const Palette *palette, int x2, int y2);
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static void createScalingTable(Common::Array<uint16> &table, int16 celSize, uint16 maxSize, int16 scale, bool mirrorFlag);
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ResourceManager *_resMan;
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GfxCoordAdjuster16 *_coordAdjuster;
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GfxScreen *_screen;
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GfxPalette *_palette;
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GuiResourceId _resourceId;
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Resource *_resource;
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Common::Array<LoopInfo> _loop;
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bool _embeddedPal;
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Palette _viewPalette;
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SciSpan<const byte> _EGAmapping;
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// this is set for sci0early to adjust for the getCelRect() change
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int16 _adjustForSci0Early;
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// this is not set for some views in laura bow 2 floppy and signals that the view shall never get scaled
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// even if scaleX/Y are set (inside kAnimate)
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bool _isScaleable;
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};
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} // End of namespace Sci
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#endif // SCI_GRAPHICS_VIEW_H
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