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/*
* Copyright (C) 2003-2006 Gabest
* http://www.gabest.org
*
* 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, 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#pragma once
#include <atlcoll.h>
#include "SubtitleFile.h"
#include "Array.h"
#include "GlyphPath.h"
#include "..\..\SubPic\ISubPic.h"
namespace ssf
{
class Rasterizer
{
bool fFirstSet;
CPoint firstp, lastp;
private:
int mWidth, mHeight;
union Span
{
struct {int x1, y1, x2, y2;};
struct {unsigned __int64 first, second;};
union Span() {}
union Span(int _x1, int _y1, int _x2, int _y2) {x1 = _x1; y1 = _y1; x2 = _x2; y2 = _y2;}
union Span(unsigned __int64 _first, unsigned __int64 _second) {first = _first; second = _second;}
};
Array<Span> mOutline, mWideOutline, mWideOutlineTmp;
int mWideBorder;
struct Edge {int next, posandflag;}* mpEdgeBuffer;
unsigned int mEdgeHeapSize;
unsigned int mEdgeNext;
unsigned int* mpScanBuffer;
protected:
BYTE* mpOverlayBuffer;
int mOverlayWidth, mOverlayHeight;
int mPathOffsetX, mPathOffsetY;
int mOffsetX, mOffsetY;
private:
void _TrashOverlay();
void _ReallocEdgeBuffer(int edges);
void _EvaluateBezier(const CPoint& p0, const CPoint& p1, const CPoint& p2, const CPoint& p3);
void _EvaluateLine(CPoint p0, CPoint p1);
void _OverlapRegion(Array<Span>& dst, Array<Span>& src, int dx, int dy);
public:
Rasterizer();
virtual ~Rasterizer();
bool ScanConvert(GlyphPath& path, const CRect& bbox);
bool CreateWidenedRegion(int r);
bool Rasterize(int xsub, int ysub);
void Reuse(Rasterizer& r);
void Blur(float n, int plane);
CRect Draw(const SubPicDesc& spd, const CRect& clip, int xsub, int ysub, const DWORD* switchpts, int plane);
};
}
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