forked from mia/Aegisub
92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
/*
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* Copyright (C) 2003-2006 Gabest
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* http://www.gabest.org
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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 2, or (at your option)
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* 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 GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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*/
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#pragma once
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#include <vector>
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#include "..\SubPic\ISubPic.h"
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#define PT_MOVETONC 0xfe
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#define PT_BSPLINETO 0xfc
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#define PT_BSPLINEPATCHTO 0xfa
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class Rasterizer
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{
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bool fFirstSet;
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CPoint firstp, lastp;
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protected:
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BYTE* mpPathTypes;
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POINT* mpPathPoints;
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int mPathPoints;
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private:
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int mWidth, mHeight;
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typedef std::pair<unsigned __int64, unsigned __int64> tSpan;
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typedef std::vector<tSpan> tSpanBuffer;
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tSpanBuffer mOutline;
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tSpanBuffer mWideOutline;
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int mWideBorder;
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struct Edge {
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int next;
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int posandflag;
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} *mpEdgeBuffer;
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unsigned mEdgeHeapSize;
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unsigned mEdgeNext;
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unsigned int* mpScanBuffer;
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typedef unsigned char byte;
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protected:
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byte *mpOverlayBuffer;
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int mOverlayWidth, mOverlayHeight;
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int mPathOffsetX, mPathOffsetY;
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int mOffsetX, mOffsetY;
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private:
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void _TrashPath();
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void _TrashOverlay();
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void _ReallocEdgeBuffer(int edges);
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void _EvaluateBezier(int ptbase, bool fBSpline);
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void _EvaluateLine(int pt1idx, int pt2idx);
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void _EvaluateLine(int x0, int y0, int x1, int y1);
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static void _OverlapRegion(tSpanBuffer& dst, tSpanBuffer& src, int dx, int dy);
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public:
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Rasterizer();
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virtual ~Rasterizer();
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bool BeginPath(HDC hdc);
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bool EndPath(HDC hdc);
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bool PartialBeginPath(HDC hdc, bool bClearPath);
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bool PartialEndPath(HDC hdc, long dx, long dy);
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bool ScanConvert();
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bool CreateWidenedRegion(int border);
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void DeleteOutlines();
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bool Rasterize(int xsub, int ysub, bool fBlur);
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CRect Draw(SubPicDesc& spd, CRect& clipRect, byte* pAlphaMask, int xsub, int ysub, const long* switchpts, bool fBody, bool fBorder);
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};
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