Aegisub/vsfilter/subtitles/RTS.cpp

/* 
 *	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
 *
 */

#include "stdafx.h"
#include <math.h>
#include <time.h>
#include "RTS.h"

// WARNING: this isn't very thread safe, use only one RTS a time.
static HDC g_hDC;
static int g_hDC_refcnt = 0;

static long revcolor(long c)
{
	return ((c&0xff0000)>>16) + (c&0xff00) + ((c&0xff)<<16);
}

//////////////////////////////////////////////////////////////////////////////////////////////

// CMyFont

CMyFont::CMyFont(STSStyle& style)
{
	LOGFONT lf;
	memset(&lf, 0, sizeof(lf));
	lf <<= style;
	//lf.lfHeight = (LONG)(style.fontSize+0.5);
	lf.lfOutPrecision = OUT_TT_PRECIS;
	lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
	lf.lfQuality = ANTIALIASED_QUALITY;
	lf.lfPitchAndFamily = DEFAULT_PITCH|FF_DONTCARE;

	if(!CreateFontIndirect(&lf))
	{
		_tcscpy(lf.lfFaceName, _T("Arial"));
		CreateFontIndirect(&lf);
	}

	HFONT hOldFont = SelectFont(g_hDC, *this);
	TEXTMETRIC tm;
	GetTextMetrics(g_hDC, &tm);
	m_ascent = ((tm.tmAscent + 4) >> 3);
	m_descent = ((tm.tmDescent + 4) >> 3);
	SelectFont(g_hDC, hOldFont);
}

// CWord

CWord::CWord(STSStyle& style, CStringW str, int ktype, int kstart, int kend) 
	: m_style(style), m_str(str)
	, m_width(0), m_ascent(0), m_descent(0)
	, m_ktype(ktype), m_kstart(kstart), m_kend(kend)
	, m_fDrawn(false), m_p(INT_MAX, INT_MAX)
	, m_fLineBreak(false), m_fWhiteSpaceChar(false)
	, m_pOpaqueBox(NULL)
{
	if(str.IsEmpty()) 
	{
		m_fWhiteSpaceChar = m_fLineBreak = true; 
	}

	CMyFont font(m_style);
	m_ascent = (int)(m_style.fontScaleY/100*font.m_ascent);
	m_descent = (int)(m_style.fontScaleY/100*font.m_descent);
	m_width = 0;
}

CWord::~CWord()
{
	if(m_pOpaqueBox) delete m_pOpaqueBox;
}

bool CWord::Append(CWord* w)
{
	if(!(m_style == w->m_style)
	|| m_fLineBreak || w->m_fLineBreak
	|| w->m_kstart != w->m_kend || m_ktype != w->m_ktype) return(false);

	m_fWhiteSpaceChar = m_fWhiteSpaceChar && w->m_fWhiteSpaceChar;
	m_str += w->m_str;
	m_width += w->m_width;

	m_fDrawn = false;
	m_p = CPoint(INT_MAX, INT_MAX);

	return(true);
}

void CWord::Paint(CPoint p, CPoint org)
{
	if(!m_str) return;

	if(!m_fDrawn)
	{
		if(!CreatePath()) return;

		Transform(CPoint((org.x-p.x)*8, (org.y-p.y)*8));

		if(!ScanConvert()) return;

		if(m_style.borderStyle == 0 && m_style.outlineWidth > 0)
		{
			if(!CreateWidenedRegion((int)(m_style.outlineWidth+0.5))) return;
		}
		else if(m_style.borderStyle == 1)
		{
			if(!CreateOpaqueBox()) return;
		}

		m_fDrawn = true;

		if(!Rasterize(p.x&7, p.y&7, m_style.fBlur)) return;
	}
	else if((m_p.x&7) != (p.x&7) || (m_p.y&7) != (p.y&7))
	{
		Rasterize(p.x&7, p.y&7, m_style.fBlur);
	}

	m_p = p;

	if(m_pOpaqueBox)
		m_pOpaqueBox->Paint(p, org);
}

void CWord::Transform(CPoint org)
{
	double scalex = m_style.fontScaleX/100;
	double scaley = m_style.fontScaleY/100;

	double caz = cos((3.1415/180)*m_style.fontAngleZ);
	double saz = sin((3.1415/180)*m_style.fontAngleZ);
	double cax = cos((3.1415/180)*m_style.fontAngleX);
	double sax = sin((3.1415/180)*m_style.fontAngleX);
	double cay = cos((3.1415/180)*m_style.fontAngleY);
	double say = sin((3.1415/180)*m_style.fontAngleY);

	for(int i = 0; i < mPathPoints; i++)
	{
		double x, y, z, xx, yy, zz;

		x = scalex * (mpPathPoints[i].x + m_style.fontShiftX * mpPathPoints[i].y) - org.x;
		y = scaley * (mpPathPoints[i].y + m_style.fontShiftY * mpPathPoints[i].x) - org.y;
		z = 0;

		xx = x*caz + y*saz;
		yy = -(x*saz - y*caz);
		zz = z;

		x = xx;
		y = yy*cax + zz*sax;
		z = yy*sax - zz*cax;

		xx = x*cay + z*say;
		yy = y;
		zz = x*say - z*cay;

		zz = max(zz, -19000);

		x = (xx * 20000) / (zz + 20000);
		y = (yy * 20000) / (zz + 20000);

		mpPathPoints[i].x = (LONG)(x + org.x + 0.5);
		mpPathPoints[i].y = (LONG)(y + org.y + 0.5);
	}
}

bool CWord::CreateOpaqueBox()
{
	if(m_pOpaqueBox) return(true);

	STSStyle style = m_style;
	style.borderStyle = 0;
	style.outlineWidth = 0;
	style.colors[0] = m_style.colors[2];
	style.alpha[0] = m_style.alpha[2];

	int w = (int)(m_style.outlineWidth + 0.5);

	CStringW str;
	str.Format(L"m %d %d l %d %d %d %d %d %d", 
		-w, -w, 
		m_width+w, -w, 
		m_width+w, m_ascent+m_descent+w, 
		-w, m_ascent+m_descent+w);

	m_pOpaqueBox = new CPolygon(style, str, 0, 0, 0, 1.0/8, 1.0/8, 0);

	return(!!m_pOpaqueBox);
}

// CText

CText::CText(STSStyle& style, CStringW str, int ktype, int kstart, int kend)
	: CWord(style, str, ktype, kstart, kend)
{
	if(m_str == L" ")
	{
		m_fWhiteSpaceChar = true;
	}

	CMyFont font(m_style);

	HFONT hOldFont = SelectFont(g_hDC, font);

	if(m_style.fontSpacing || (long)GetVersion() < 0)
	{
		bool bFirstPath = true;

		for(LPCWSTR s = m_str; *s; s++)
		{
			CSize extent;
			if(!GetTextExtentPoint32W(g_hDC, s, 1, &extent)) {SelectFont(g_hDC, hOldFont); ASSERT(0); return;}
			m_width += extent.cx + (int)m_style.fontSpacing;
		}
//			m_width -= (int)m_style.fontSpacing; // TODO: subtract only at the end of the line
	}
	else
	{
		CSize extent;
		if(!GetTextExtentPoint32W(g_hDC, m_str, wcslen(str), &extent)) {SelectFont(g_hDC, hOldFont); ASSERT(0); return;}
		m_width += extent.cx;
	}

	m_width = (int)(m_style.fontScaleX/100*m_width + 4) >> 3;

	SelectFont(g_hDC, hOldFont);
}

CWord* CText::Copy()
{
	return(new CText(m_style, m_str, m_ktype, m_kstart, m_kend));
}

bool CText::Append(CWord* w)
{
	return(dynamic_cast<CText*>(w) && CWord::Append(w));
}

bool CText::CreatePath()
{
	CMyFont font(m_style);

	HFONT hOldFont = SelectFont(g_hDC, font);

	int width = 0;

	if(m_style.fontSpacing || (long)GetVersion() < 0)
	{
		bool bFirstPath = true;

		for(LPCWSTR s = m_str; *s; s++)
		{
			CSize extent;
			if(!GetTextExtentPoint32W(g_hDC, s, 1, &extent)) {SelectFont(g_hDC, hOldFont); ASSERT(0); return(false);}

			PartialBeginPath(g_hDC, bFirstPath); bFirstPath = false;
			TextOutW(g_hDC, 0, 0, s, 1);
			PartialEndPath(g_hDC, width, 0);

			width += extent.cx + (int)m_style.fontSpacing;
		}
	}
	else
	{
		CSize extent;
		if(!GetTextExtentPoint32W(g_hDC, m_str, m_str.GetLength(), &extent)) {SelectFont(g_hDC, hOldFont); ASSERT(0); return(false);}

		BeginPath(g_hDC);
		TextOutW(g_hDC, 0, 0, m_str, m_str.GetLength());
		EndPath(g_hDC);
	}

	SelectFont(g_hDC, hOldFont);

	return(true);
}

// CPolygon

CPolygon::CPolygon(STSStyle& style, CStringW str, int ktype, int kstart, int kend, double scalex, double scaley, int baseline) 
	: CWord(style, str, ktype, kstart, kend)
	, m_scalex(scalex), m_scaley(scaley), m_baseline(baseline)
{
	ParseStr();
}

CPolygon::~CPolygon()
{
}

CWord* CPolygon::Copy()
{
	return(new CPolygon(m_style, m_str, m_ktype, m_kstart, m_kend, m_scalex, m_scaley, m_baseline));
}

bool CPolygon::Append(CWord* w)
{
	int width = m_width;

	CPolygon* p = dynamic_cast<CPolygon*>(w);
	if(!p) return(false);

	// TODO
	return(false);

	return(true);
}

bool CPolygon::GetLONG(CStringW& str, LONG& ret)
{
	LPWSTR s = (LPWSTR)(LPCWSTR)str, e = s;
	ret = wcstol(str, &e, 10);
	str = str.Mid(e - s);
	return(e > s);
}

bool CPolygon::GetPOINT(CStringW& str, POINT& ret)
{
	return(GetLONG(str, ret.x) && GetLONG(str, ret.y));
}

bool CPolygon::ParseStr()
{
	if(m_pathTypesOrg.GetCount() > 0) return(true);

	CPoint p;
	int i, j, lastsplinestart = -1, firstmoveto = -1, lastmoveto = -1;

	CStringW str = m_str;
	str.SpanIncluding(L"mnlbspc 0123456789");
	str.Replace(L"m", L"*m");
	str.Replace(L"n", L"*n");
	str.Replace(L"l", L"*l");
	str.Replace(L"b", L"*b");
	str.Replace(L"s", L"*s");
	str.Replace(L"p", L"*p");
	str.Replace(L"c", L"*c");

	int k = 0;
	for(CStringW s = str.Tokenize(L"*", k); !s.IsEmpty(); s = str.Tokenize(L"*", k))
	{
		WCHAR c = s[0];
		s.TrimLeft(L"mnlbspc ");
		switch(c)
		{
		case 'm': 
			lastmoveto = m_pathTypesOrg.GetCount();
			if(firstmoveto == -1) firstmoveto = lastmoveto;
			while(GetPOINT(s, p)) {m_pathTypesOrg.Add(PT_MOVETO); m_pathPointsOrg.Add(p);}
			break;
		case 'n':
			while(GetPOINT(s, p)) {m_pathTypesOrg.Add(PT_MOVETONC); m_pathPointsOrg.Add(p);}
			break;
		case 'l':
			while(GetPOINT(s, p)) {m_pathTypesOrg.Add(PT_LINETO); m_pathPointsOrg.Add(p);}
			break;
		case 'b':
			j = m_pathTypesOrg.GetCount();
			while(GetPOINT(s, p)) {m_pathTypesOrg.Add(PT_BEZIERTO); m_pathPointsOrg.Add(p); j++;}
			j = m_pathTypesOrg.GetCount() - ((m_pathTypesOrg.GetCount()-j)%3);
			m_pathTypesOrg.SetCount(j); m_pathPointsOrg.SetCount(j);
			break;
		case 's':
			j = lastsplinestart = m_pathTypesOrg.GetCount();
			i = 3;
			while(i-- && GetPOINT(s, p)) {m_pathTypesOrg.Add(PT_BSPLINETO); m_pathPointsOrg.Add(p); j++;}
			if(m_pathTypesOrg.GetCount()-lastsplinestart < 3) {m_pathTypesOrg.SetCount(lastsplinestart); m_pathPointsOrg.SetCount(lastsplinestart); lastsplinestart = -1;}
			// no break here
		case 'p':
			while(GetPOINT(s, p)) {m_pathTypesOrg.Add(PT_BSPLINEPATCHTO); m_pathPointsOrg.Add(p); j++;}
			break;
		case 'c':
			if(lastsplinestart > 0)
			{
				m_pathTypesOrg.Add(PT_BSPLINEPATCHTO);
				m_pathTypesOrg.Add(PT_BSPLINEPATCHTO);
				m_pathTypesOrg.Add(PT_BSPLINEPATCHTO);
				p = m_pathPointsOrg[lastsplinestart-1]; // we need p for temp storage, because operator [] will return a reference to CPoint and Add() may reallocate its internal buffer (this is true for MFC 7.0 but not for 6.0, hehe)
				m_pathPointsOrg.Add(p);
				p = m_pathPointsOrg[lastsplinestart];
				m_pathPointsOrg.Add(p);
				p = m_pathPointsOrg[lastsplinestart+1];
				m_pathPointsOrg.Add(p);
				lastsplinestart = -1;
			}
			break;
		default:
			break;
		}
	}
/*
	LPCWSTR str = m_str;
	while(*str)
	{
		while(*str && *str != 'm' && *str != 'n' && *str != 'l' && *str != 'b' && *str != 's' && *str != 'p' && *str != 'c') str++;

		if(!*str) break;

		switch(*str++)
		{
		case 'm': 
			lastmoveto = m_pathTypesOrg.GetCount();
			if(firstmoveto == -1) firstmoveto = lastmoveto;
			while(GetPOINT(str, p)) {m_pathTypesOrg.Add(PT_MOVETO); m_pathPointsOrg.Add(p);}
			break;
		case 'n':
			while(GetPOINT(str, p)) {m_pathTypesOrg.Add(PT_MOVETONC); m_pathPointsOrg.Add(p);}
			break;
		case 'l':
			while(GetPOINT(str, p)) {m_pathTypesOrg.Add(PT_LINETO); m_pathPointsOrg.Add(p);}
			break;
		case 'b':
			j = m_pathTypesOrg.GetCount();
			while(GetPOINT(str, p)) {m_pathTypesOrg.Add(PT_BEZIERTO); m_pathPointsOrg.Add(p); j++;}
			j = m_pathTypesOrg.GetCount() - ((m_pathTypesOrg.GetCount()-j)%3);
			m_pathTypesOrg.SetCount(j); m_pathPointsOrg.SetCount(j);
			break;
		case 's':
			j = lastsplinestart = m_pathTypesOrg.GetCount();
			i = 3;
			while(i-- && GetPOINT(str, p)) {m_pathTypesOrg.Add(PT_BSPLINETO); m_pathPointsOrg.Add(p); j++;}
			if(m_pathTypesOrg.GetCount()-lastsplinestart < 3) {m_pathTypesOrg.SetCount(lastsplinestart); m_pathPointsOrg.SetCount(lastsplinestart); lastsplinestart = -1;}
			// no break here
		case 'p':
			while(GetPOINT(str, p)) {m_pathTypesOrg.Add(PT_BSPLINEPATCHTO); m_pathPointsOrg.Add(p); j++;}
			break;
		case 'c':
			if(lastsplinestart > 0)
			{
				m_pathTypesOrg.Add(PT_BSPLINEPATCHTO);
				m_pathTypesOrg.Add(PT_BSPLINEPATCHTO);
				m_pathTypesOrg.Add(PT_BSPLINEPATCHTO);
				p = m_pathPointsOrg[lastsplinestart-1]; // we need p for temp storage, because operator [] will return a reference to CPoint and Add() may reallocate its internal buffer (this is true for MFC 7.0 but not for 6.0, hehe)
				m_pathPointsOrg.Add(p);
				p = m_pathPointsOrg[lastsplinestart];
				m_pathPointsOrg.Add(p);
				p = m_pathPointsOrg[lastsplinestart+1];
				m_pathPointsOrg.Add(p);
				lastsplinestart = -1;
			}
			break;
		default:
			break;
		}

		if(firstmoveto > 0) break;
	}
*/
	if(lastmoveto == -1 || firstmoveto > 0) 
	{
		m_pathTypesOrg.RemoveAll();
		m_pathPointsOrg.RemoveAll();
		return(false);
	}

	int minx = INT_MAX, miny = INT_MAX, maxx = -INT_MAX, maxy = -INT_MAX;

	for(i = 0; i < m_pathTypesOrg.GetCount(); i++)
	{
		m_pathPointsOrg[i].x = (int)(64 * m_scalex * m_pathPointsOrg[i].x);
		m_pathPointsOrg[i].y = (int)(64 * m_scaley * m_pathPointsOrg[i].y);
		if(minx > m_pathPointsOrg[i].x) minx = m_pathPointsOrg[i].x;
		if(miny > m_pathPointsOrg[i].y) miny = m_pathPointsOrg[i].y;
		if(maxx < m_pathPointsOrg[i].x) maxx = m_pathPointsOrg[i].x;
		if(maxy < m_pathPointsOrg[i].y) maxy = m_pathPointsOrg[i].y;
	}

	m_width = max(maxx - minx, 0);
	m_ascent = max(maxy - miny, 0);

	int baseline = (int)(64 * m_scaley * m_baseline);
	m_descent = baseline;
	m_ascent -= baseline;

	m_width = ((int)(m_style.fontScaleX/100 * m_width) + 4) >> 3;
	m_ascent = ((int)(m_style.fontScaleY/100 * m_ascent) + 4) >> 3;
	m_descent = ((int)(m_style.fontScaleY/100 * m_descent) + 4) >> 3;

	return(true);
}

bool CPolygon::CreatePath()
{
	int len = m_pathTypesOrg.GetCount();
	if(len == 0) return(false);

	if(mPathPoints != len)
	{
		mpPathTypes = (BYTE*)realloc(mpPathTypes, len*sizeof(BYTE));
		mpPathPoints = (POINT*)realloc(mpPathPoints, len*sizeof(POINT));
		if(!mpPathTypes || !mpPathPoints) return(false);
		mPathPoints = len;
	}

	memcpy(mpPathTypes, m_pathTypesOrg.GetData(), len*sizeof(BYTE));
	memcpy(mpPathPoints, m_pathPointsOrg.GetData(), len*sizeof(POINT));

	return(true);
}

// CClipper

CClipper::CClipper(CStringW str, CSize size, double scalex, double scaley) 
	: CPolygon(STSStyle(), str, 0, 0, 0, scalex, scaley, 0)
{
	m_size.cx = m_size.cy = 0;
	m_pAlphaMask = NULL;

	if(size.cx < 0 || size.cy < 0 || !(m_pAlphaMask = new BYTE[size.cx*size.cy])) return;

	m_size = size;

	memset(m_pAlphaMask, 0, size.cx*size.cy);

	Paint(CPoint(0, 0), CPoint(0, 0));

	int w = mOverlayWidth, h = mOverlayHeight;

	int x = (mOffsetX+4)>>3, y = (mOffsetY+4)>>3;
	int xo = 0, yo = 0;

	if(x < 0) {xo = -x; w -= -x; x = 0;}
	if(y < 0) {yo = -y; h -= -y; y = 0;}
	if(x+w > m_size.cx) w = m_size.cx-x;
	if(y+h > m_size.cy) h = m_size.cy-y;

	if(w <= 0 || h <= 0) return;

	const BYTE* src = mpOverlayBuffer + 2*(mOverlayWidth * yo + xo);
	BYTE* dst = m_pAlphaMask + m_size.cx * y + x;

	while(h--)
	{
		for(int wt=0; wt<w; ++wt)
			dst[wt] = src[wt*2];

		src += 2*mOverlayWidth;
		dst += m_size.cx;
	}
}

CClipper::~CClipper()
{
	if(m_pAlphaMask) delete [] m_pAlphaMask;
	m_pAlphaMask = NULL;
}

CWord* CClipper::Copy()
{
	return(new CClipper(m_str, m_size, m_scalex, m_scaley));
}

bool CClipper::Append(CWord* w)
{
	return(false);
}

// CLine

CLine::~CLine()
{
	POSITION pos = GetHeadPosition();
	while(pos) delete GetNext(pos);
}

void CLine::Compact()
{
	POSITION pos = GetHeadPosition();
	while(pos)
	{
		CWord* w = GetNext(pos);
		if(!w->m_fWhiteSpaceChar) break;

		m_width -= w->m_width;
		delete w;
		RemoveHead();
	}

	pos = GetTailPosition();
	while(pos)
	{
		CWord* w = GetPrev(pos);
		if(!w->m_fWhiteSpaceChar) break;

		m_width -= w->m_width;
		delete w;
		RemoveTail();
	}

	if(IsEmpty()) return;

	CLine l;
	l.AddTailList(this);
	RemoveAll();

	CWord* last = NULL;

	pos = l.GetHeadPosition();
	while(pos)
	{
		CWord* w = l.GetNext(pos);

		if(!last || !last->Append(w))
			AddTail(last = w->Copy());
	}

	m_ascent = m_descent = m_border = 0;

	pos = GetHeadPosition();
	while(pos)
	{
		CWord* w = GetNext(pos);

		if(m_ascent < w->m_ascent) m_ascent = w->m_ascent;
		if(m_descent < w->m_descent) m_descent = w->m_descent;
		if(m_border < w->m_style.outlineWidth) m_border = (int)(w->m_style.outlineWidth+0.5);
	}
}

CRect CLine::PaintShadow(SubPicDesc& spd, CRect& clipRect, BYTE* pAlphaMask, CPoint p, CPoint org, int time, int alpha)
{
	CRect bbox(0, 0, 0, 0);

	POSITION pos = GetHeadPosition();
	while(pos)
	{
		CWord* w = GetNext(pos);

		if(w->m_fLineBreak) return(bbox); // should not happen since this class is just a line of text without any breaks

		if(w->m_style.shadowDepth > 0)
		{
			int x = p.x + (int)(w->m_style.shadowDepth+0.5);
			int y = p.y + m_ascent - w->m_ascent + (int)(w->m_style.shadowDepth+0.5);

			DWORD a = 0xff - w->m_style.alpha[3];
			if(alpha > 0) a = MulDiv(a, 0xff - alpha, 0xff);
			COLORREF shadow = revcolor(w->m_style.colors[3]) | (a<<24);
			long sw[6] = {shadow, -1};

			w->Paint(CPoint(x, y), org);

			if(w->m_style.borderStyle == 0)
			{
				bbox |= w->Draw(spd, clipRect, pAlphaMask, x, y, sw, 
					w->m_ktype > 0 || w->m_style.alpha[0] < 0xff, 
					w->m_style.outlineWidth > 0 && !(w->m_ktype == 2 && time < w->m_kstart));
			}
			else if(w->m_style.borderStyle == 1 && w->m_pOpaqueBox)
			{
				bbox |= w->m_pOpaqueBox->Draw(spd, clipRect, pAlphaMask, x, y, sw, true, false);
			}
		}

		p.x += w->m_width;
	}

	return(bbox);
}

CRect CLine::PaintOutline(SubPicDesc& spd, CRect& clipRect, BYTE* pAlphaMask, CPoint p, CPoint org, int time, int alpha)
{
	CRect bbox(0, 0, 0, 0);

	POSITION pos = GetHeadPosition();
	while(pos)
	{
		CWord* w = GetNext(pos);

		if(w->m_fLineBreak) return(bbox); // should not happen since this class is just a line of text without any breaks

//		if((w->m_style.outlineWidth > 0 || w->m_style.borderStyle == 1 && w->m_style.outlineWidth == 0) && !(w->m_ktype == 2 && time < w->m_kstart))
		if(w->m_style.outlineWidth > 0 && !(w->m_ktype == 2 && time < w->m_kstart))
		{
			int x = p.x;
			int y = p.y + m_ascent - w->m_ascent;

			DWORD aoutline = w->m_style.alpha[2];
			if(alpha > 0) aoutline += MulDiv(alpha, 0xff - w->m_style.alpha[2], 0xff);
			COLORREF outline = revcolor(w->m_style.colors[2]) | ((0xff-aoutline)<<24);
			long sw[6] = {outline, -1};

			w->Paint(CPoint(x, y), org);

			if(w->m_style.borderStyle == 0)
			{
				bbox |= w->Draw(spd, clipRect, pAlphaMask, x, y, sw, !w->m_style.alpha[0] && !w->m_style.alpha[1], true);
			}
			else if(w->m_style.borderStyle == 1 && w->m_pOpaqueBox)
			{
				bbox |= w->m_pOpaqueBox->Draw(spd, clipRect, pAlphaMask, x, y, sw, true/*!w->m_style.alpha[0] && !w->m_style.alpha[1]*/, false);
			}
		}

		p.x += w->m_width;
	}

	return(bbox);
}

CRect CLine::PaintBody(SubPicDesc& spd, CRect& clipRect, BYTE* pAlphaMask, CPoint p, CPoint org, int time, int alpha)
{
	CRect bbox(0, 0, 0, 0);

	POSITION pos = GetHeadPosition();
	while(pos)
	{
		CWord* w = GetNext(pos);

		if(w->m_fLineBreak) return(bbox); // should not happen since this class is just a line of text without any breaks

		int x = p.x;
		int y = p.y + m_ascent - w->m_ascent;

		// colors

		DWORD aprimary = w->m_style.alpha[0];
		if(alpha > 0) aprimary += MulDiv(alpha, 0xff - w->m_style.alpha[0], 0xff);
		COLORREF primary = revcolor(w->m_style.colors[0]) | ((0xff-aprimary)<<24);

		DWORD asecondary = w->m_style.alpha[1];
		if(alpha > 0) asecondary += MulDiv(alpha, 0xff - w->m_style.alpha[1], 0xff);
		COLORREF secondary = revcolor(w->m_style.colors[1]) | ((0xff-asecondary)<<24);

		long sw[6] = {primary, 0, secondary};

		// karaoke

		double t;

		if(w->m_ktype == 0 || w->m_ktype == 2)
		{
			t = time < w->m_kstart ? 0 : 1;
		}
		else if(w->m_ktype == 1)
		{
			if(time < w->m_kstart) t = 0;
			else if(time < w->m_kend) 
			{
				t = 1.0 * (time - w->m_kstart) / (w->m_kend - w->m_kstart);

				double angle = fmod(w->m_style.fontAngleZ, 360.0);
				if(angle > 90 && angle < 270) 
				{
					t = 1-t;
					COLORREF tmp = sw[0]; sw[0] = sw[2]; sw[2] = tmp;
				}
			}
			else t = 1.0;
		}

		if(t >= 1)
		{
			sw[1] = 0xffffffff;
		}

		sw[3] = (int)(w->m_style.outlineWidth + t*w->m_width) >> 3;
		sw[4] = sw[2];
		sw[5] = 0x00ffffff;

		w->Paint(CPoint(x, y), org);

		bbox |= w->Draw(spd, clipRect, pAlphaMask, x, y, sw, true, false);

		p.x += w->m_width;
	}

	return(bbox);
}


// CSubtitle

CSubtitle::CSubtitle()
{
	memset(m_effects, 0, sizeof(Effect*)*EF_NUMBEROFEFFECTS);
	m_pClipper = NULL;
	m_scalex = m_scaley = 1;
}

CSubtitle::~CSubtitle()
{
	Empty();
}

void CSubtitle::Empty()
{
	POSITION pos = GetHeadPosition();
	while(pos) delete GetNext(pos);

	pos = m_words.GetHeadPosition();
	while(pos) delete m_words.GetNext(pos);

	for(int i = 0; i < EF_NUMBEROFEFFECTS; i++) {if(m_effects[i]) delete m_effects[i];}
	memset(m_effects, 0, sizeof(Effect*)*EF_NUMBEROFEFFECTS);

	if(m_pClipper) delete m_pClipper;
	m_pClipper = NULL;
}

int CSubtitle::GetFullWidth()
{
	int width = 0;

	POSITION pos = m_words.GetHeadPosition();
	while(pos) width += m_words.GetNext(pos)->m_width;

	return(width);
}

int CSubtitle::GetFullLineWidth(POSITION pos)
{
	int width = 0;

	while(pos) 
	{
		CWord* w = m_words.GetNext(pos);
		if(w->m_fLineBreak) break;
		width += w->m_width;
	}

	return(width);
}

int CSubtitle::GetWrapWidth(POSITION pos, int maxwidth)
{
	if(m_wrapStyle == 0 || m_wrapStyle == 3)
	{
		if(maxwidth > 0) 
		{
//			int fullwidth = GetFullWidth();
			int fullwidth = GetFullLineWidth(pos);

			int minwidth = fullwidth / ((abs(fullwidth) / maxwidth) + 1);

			int width = 0, wordwidth = 0;

			while(pos && width < minwidth)
			{
				CWord* w = m_words.GetNext(pos);
				wordwidth = w->m_width;
				if(abs(width + wordwidth) < abs(maxwidth)) width += wordwidth;
			}

			maxwidth = width;

			if(m_wrapStyle == 3 && pos) maxwidth -= wordwidth;
		}
	}
	else if(m_wrapStyle == 1)
	{
//		maxwidth = maxwidth;
	}
	else if(m_wrapStyle == 2)
	{
		maxwidth = INT_MAX;
	}

	return(maxwidth);
}

CLine* CSubtitle::GetNextLine(POSITION& pos, int maxwidth)
{
	if(pos == NULL) return(NULL);

	CLine* ret = new CLine();
	if(!ret) return(NULL);

	ret->m_width = ret->m_ascent = ret->m_descent = ret->m_border = 0;

	maxwidth = GetWrapWidth(pos, maxwidth);

	bool fEmptyLine = true;

	while(pos)
	{
		CWord* w = m_words.GetNext(pos);

		if(ret->m_ascent < w->m_ascent) ret->m_ascent = w->m_ascent;
		if(ret->m_descent < w->m_descent) ret->m_descent = w->m_descent;
		if(ret->m_border < w->m_style.outlineWidth) ret->m_border = (int)(w->m_style.outlineWidth+0.5);

		if(w->m_fLineBreak) 
		{
			if(fEmptyLine) {ret->m_ascent /= 2; ret->m_descent /= 2; ret->m_border = 0;}

			ret->Compact();

			return(ret);
		}

		fEmptyLine = false;

		bool fWSC = w->m_fWhiteSpaceChar;

		int width = w->m_width;
		POSITION pos2 = pos;
		while(pos2)
		{
			if(m_words.GetAt(pos2)->m_fWhiteSpaceChar != fWSC
			|| m_words.GetAt(pos2)->m_fLineBreak) break;

			CWord* w2 = m_words.GetNext(pos2);
			width += w2->m_width;
		}

		if((ret->m_width += width) <= maxwidth || ret->IsEmpty()) 
		{
			ret->AddTail(w->Copy());
			
			while(pos != pos2)
			{
				ret->AddTail(m_words.GetNext(pos)->Copy());
			}

			pos = pos2;
		}
		else
		{
			if(pos) m_words.GetPrev(pos);
			else pos = m_words.GetTailPosition();

			ret->m_width -= width;

			break;
		}
	}

	ret->Compact();

	return(ret);
}

void CSubtitle::CreateClippers(CSize size)
{
	size.cx >>= 3;
	size.cy >>= 3;

	if(m_effects[EF_BANNER] && m_effects[EF_BANNER]->param[2])
	{
		int width = m_effects[EF_BANNER]->param[2];

		int w = size.cx, h = size.cy;

		if(!m_pClipper) 
		{
			CStringW str;
			str.Format(L"m %d %d l %d %d %d %d %d %d", 0, 0, w, 0, w, h, 0, h);
			m_pClipper = new CClipper(str, size, 1, 1);
			if(!m_pClipper) return;
		}

		int da = (64<<8)/width;
		BYTE* am = m_pClipper->m_pAlphaMask;

		for(int j = 0; j < h; j++, am += w)
		{
			int a = 0;
			int k = min(width, w);
			
			for(int i = 0; i < k; i++, a += da)
				am[i] = (am[i]*a)>>14;

			a = 0x40<<8;
			k = w-width;

			if(k < 0) {a -= -k*da; k = 0;}
            
			for(int i = k; i < w; i++, a -= da)
				am[i] = (am[i]*a)>>14;
		}
	}
	else if(m_effects[EF_SCROLL] && m_effects[EF_SCROLL]->param[4])
	{
		int height = m_effects[EF_SCROLL]->param[4];

		int w = size.cx, h = size.cy;

		if(!m_pClipper) 
		{
			CStringW str;
			str.Format(L"m %d %d l %d %d %d %d %d %d", 0, 0, w, 0, w, h, 0, h);
			m_pClipper = new CClipper(str, size, 1, 1);
			if(!m_pClipper) return;
		}

		int da = (64<<8)/height;
		int a = 0;
		int k = m_effects[EF_SCROLL]->param[0]>>3;
		int l = k+height;
		if(k < 0) {a += -k*da; k = 0;}
		if(l > h) {l = h;}

		if(k < h)
		{
			BYTE* am = &m_pClipper->m_pAlphaMask[k*w];

			memset(m_pClipper->m_pAlphaMask, 0, am - m_pClipper->m_pAlphaMask);

			for(int j = k; j < l; j++, a += da)
			{
				for(int i = 0; i < w; i++, am++)
					*am = ((*am)*a)>>14;
			}
		}

		da = -(64<<8)/height;
		a = 0x40<<8;
		l = m_effects[EF_SCROLL]->param[1]>>3;
		k = l-height;
		if(k < 0) {a += -k*da; k = 0;}
		if(l > h) {l = h;}

		if(k < h)
		{
			BYTE* am = &m_pClipper->m_pAlphaMask[k*w];

			int j = k;
			for(; j < l; j++, a += da)
			{
				for(int i = 0; i < w; i++, am++)
					*am = ((*am)*a)>>14;
			}

			memset(am, 0, (h-j)*w);
		}
	}
}

void CSubtitle::MakeLines(CSize size, CRect marginRect)
{
	CSize spaceNeeded(0, 0);

	bool fFirstLine = true;

	m_topborder = m_bottomborder = 0;

	CLine* l = NULL;
	
	POSITION pos = m_words.GetHeadPosition();
	while(pos)
	{
		l = GetNextLine(pos, size.cx - marginRect.left - marginRect.right);
		if(!l) break;

		if(fFirstLine) {m_topborder = l->m_border; fFirstLine = false;}

		spaceNeeded.cx = max(l->m_width, spaceNeeded.cx);
		spaceNeeded.cy += l->m_ascent + l->m_descent;

		AddTail(l);
	}

	if(l) m_bottomborder = l->m_border;

	m_rect = CRect(
		CPoint((m_scrAlignment%3) == 1 ? marginRect.left
				: (m_scrAlignment%3) == 2 ? (marginRect.left + (size.cx - marginRect.right) - spaceNeeded.cx + 1) / 2
				: (size.cx - marginRect.right - spaceNeeded.cx),
				m_scrAlignment <= 3 ? (size.cy - marginRect.bottom - spaceNeeded.cy)
				: m_scrAlignment <= 6 ? (marginRect.top + (size.cy - marginRect.bottom) - spaceNeeded.cy + 1) / 2
				: marginRect.top),
		spaceNeeded);
}

// CScreenLayoutAllocator

void CScreenLayoutAllocator::Empty()
{
	m_subrects.RemoveAll();
}

void CScreenLayoutAllocator::AdvanceToSegment(int segment, const CAtlArray<int>& sa)
{
	POSITION pos = m_subrects.GetHeadPosition();
	while(pos)
	{
		POSITION prev = pos;

		SubRect& sr = m_subrects.GetNext(pos);

		bool fFound = false;

		if(abs(sr.segment - segment) <= 1) // using abs() makes it possible to play the subs backwards, too :)
		{
			for(int i = 0; i < sa.GetCount() && !fFound; i++)
			{
				if(sa[i] == sr.entry) 
				{
					sr.segment = segment;
					fFound = true;
				}
			}
		}

		if(!fFound) m_subrects.RemoveAt(prev);
	}
}

CRect CScreenLayoutAllocator::AllocRect(CSubtitle* s, int segment, int entry, int layer, int collisions)
{
	// TODO: handle collisions == 1 (reversed collisions)

	POSITION pos = m_subrects.GetHeadPosition();
	while(pos)
	{
		SubRect& sr = m_subrects.GetNext(pos);
		if(sr.segment == segment && sr.entry == entry) 
		{
			return(sr.r + CRect(0, -s->m_topborder, 0, -s->m_bottomborder));
		}
	}

	CRect r = s->m_rect + CRect(0, s->m_topborder, 0, s->m_bottomborder);

	bool fSearchDown = s->m_scrAlignment > 3;

	bool fOK;

	do
	{
		fOK = true;

		pos = m_subrects.GetHeadPosition();
		while(pos)
		{
			SubRect& sr = m_subrects.GetNext(pos);

			if(layer == sr.layer && !(r & sr.r).IsRectEmpty())
			{
				if(fSearchDown)
				{
					r.bottom = sr.r.bottom + r.Height();
					r.top = sr.r.bottom;
				}
				else
				{
					r.top = sr.r.top - r.Height();
					r.bottom = sr.r.top;
				}
				
				fOK = false;
			}
		}
	}
	while(!fOK);

	SubRect sr;
	sr.r = r;
	sr.segment = segment;
	sr.entry = entry;
	sr.layer = layer;
	m_subrects.AddTail(sr);
	
	return(sr.r + CRect(0, -s->m_topborder, 0, -s->m_bottomborder));
}

// CRenderedTextSubtitle

CRenderedTextSubtitle::CRenderedTextSubtitle(CCritSec* pLock)
	: ISubPicProviderImpl(pLock)
{
	m_size = CSize(0, 0);

	if(g_hDC_refcnt == 0) 
	{
		g_hDC = CreateCompatibleDC(NULL);
		SetBkMode(g_hDC, TRANSPARENT); 
		SetTextColor(g_hDC, 0xffffff); 
		SetMapMode(g_hDC, MM_TEXT);
	}

	g_hDC_refcnt++;
}

CRenderedTextSubtitle::~CRenderedTextSubtitle()
{
	Deinit();

	g_hDC_refcnt--;
	if(g_hDC_refcnt == 0) DeleteDC(g_hDC);
}

void CRenderedTextSubtitle::Copy(CSimpleTextSubtitle& sts)
{
	__super::Copy(sts);

	m_size = CSize(0, 0);

	if(CRenderedTextSubtitle* pRTS = dynamic_cast<CRenderedTextSubtitle*>(&sts))
	{
		m_size = pRTS->m_size;
	}
}

void CRenderedTextSubtitle::Empty()
{
	Deinit();

	__super::Empty();
}

void CRenderedTextSubtitle::OnChanged()
{
	__super::OnChanged();

	POSITION pos = m_subtitleCache.GetStartPosition();
	while(pos)
	{
		int i;
		CSubtitle* s;
        m_subtitleCache.GetNextAssoc(pos, i, s);
		delete s;
	}

	m_subtitleCache.RemoveAll();

	m_sla.Empty();
}

bool CRenderedTextSubtitle::Init(CSize size, CRect vidrect)
{
	Deinit();

	m_size = CSize(size.cx*8, size.cy*8);
	m_vidrect = CRect(vidrect.left*8, vidrect.top*8, vidrect.right*8, vidrect.bottom*8);

	m_sla.Empty();

	return(true);
}

void CRenderedTextSubtitle::Deinit()
{
	POSITION pos = m_subtitleCache.GetStartPosition();
	while(pos)
	{
		int i;
		CSubtitle* s;
        m_subtitleCache.GetNextAssoc(pos, i, s);
		delete s;
	}

	m_subtitleCache.RemoveAll();

	m_sla.Empty();

	m_size = CSize(0, 0);
	m_vidrect.SetRectEmpty();
}

void CRenderedTextSubtitle::ParseEffect(CSubtitle* sub, CString str)
{
	str.Trim();
	if(!sub || str.IsEmpty()) return;

	const TCHAR* s = _tcschr(str, ';');
	if(!s) {s = (LPTSTR)(LPCTSTR)str; s += str.GetLength()-1;}
	s++;
	CString effect = str.Left(s - str);

	if(!effect.CompareNoCase(_T("Banner;")))
	{
		int delay, lefttoright = 0, fadeawaywidth = 0;
		if(_stscanf(s, _T("%d;%d;%d"), &delay, &lefttoright, &fadeawaywidth) < 1) return;

		Effect* e = new Effect;
		if(!e) return;

		sub->m_effects[e->type = EF_BANNER] = e;
		e->param[0] = (int)(max(1.0*delay/sub->m_scalex, 1));
		e->param[1] = lefttoright;
		e->param[2] = (int)(sub->m_scalex*fadeawaywidth);

		sub->m_wrapStyle = 2;
	}
	else if(!effect.CompareNoCase(_T("Scroll up;")) || !effect.CompareNoCase(_T("Scroll down;")))
	{
		int top, bottom, delay, fadeawayheight = 0;
		if(_stscanf(s, _T("%d;%d;%d;%d"), &top, &bottom, &delay, &fadeawayheight) < 3) return;

		if(top > bottom) {int tmp = top; top = bottom; bottom = tmp;}

		Effect* e = new Effect;
		if(!e) return;

		sub->m_effects[e->type = EF_SCROLL] = e;
		e->param[0] = (int)(sub->m_scaley*top*8);
		e->param[1] = (int)(sub->m_scaley*bottom*8);
		e->param[2] = (int)(max(1.0*delay/sub->m_scaley, 1));
		e->param[3] = (effect.GetLength() == 12);
		e->param[4] = (int)(sub->m_scaley*fadeawayheight);
	}
}

void CRenderedTextSubtitle::ParseString(CSubtitle* sub, CStringW str, STSStyle& style)
{
	if(!sub) return;

	str.Replace(L"\\N", L"\n");
	str.Replace(L"\\n", (sub->m_wrapStyle < 2 || sub->m_wrapStyle == 3) ? L" " : L"\n");
	str.Replace(L"\\h", L"\x00A0");

	for(int i = 0, j = 0, len = str.GetLength(); j <= len; j++)
	{
		WCHAR c = str[j];

		if(c != '\n' && c != ' ' && c != '\x00A0' && c != 0)
			continue;

		if(i < j)
		{
			if(CWord* w = new CText(style, str.Mid(i, j-i), m_ktype, m_kstart, m_kend))
			{
				sub->m_words.AddTail(w); 
				m_kstart = m_kend;
			}
		}

		if(c == '\n')
		{
			if(CWord* w = new CText(style, CStringW(), m_ktype, m_kstart, m_kend))
			{
				sub->m_words.AddTail(w); 
				m_kstart = m_kend;
			}
		}
		else if(c == ' ' || c == '\x00A0')
		{
			if(CWord* w = new CText(style, CStringW(c), m_ktype, m_kstart, m_kend))
			{
				sub->m_words.AddTail(w); 
				m_kstart = m_kend;
			}
		}

		i = j+1;
	}

	return;
}

void CRenderedTextSubtitle::ParsePolygon(CSubtitle* sub, CStringW str, STSStyle& style)
{
	if(!sub || !str.GetLength() || !m_nPolygon) return;

	if(CWord* w = new CPolygon(style, str, m_ktype, m_kstart, m_kend, sub->m_scalex/(1<<(m_nPolygon-1)), sub->m_scaley/(1<<(m_nPolygon-1)), m_polygonBaselineOffset))
	{
		sub->m_words.AddTail(w); 
		m_kstart = m_kend;
	}
}

bool CRenderedTextSubtitle::ParseSSATag(CSubtitle* sub, CStringW str, STSStyle& style, STSStyle& org, bool fAnimate)
{
	if(!sub) return(false);

	int nTags = 0, nUnrecognizedTags = 0;

	for(int i = 0, j; (j = str.Find('\\', i)) >= 0; i = j)
	{
		CStringW cmd;
		for(WCHAR c = str[++j]; c && c != '(' && c != '\\'; cmd += c, c = str[++j]);
		cmd.Trim();
		if(cmd.IsEmpty()) continue;

		CAtlArray<CStringW> params;

		if(str[j] == '(')
		{
			CStringW param;
			for(WCHAR c = str[++j]; c && c != ')'; param += c, c = str[++j]);
			param.Trim();

			while(!param.IsEmpty())
			{
				int i = param.Find(','), j = param.Find('\\');

				if(i >= 0 && (j < 0 || i < j))
				{
					CStringW s = param.Left(i).Trim();
					if(!s.IsEmpty()) params.Add(s);
					param = i+1 < param.GetLength() ? param.Mid(i+1) : L"";
				}
				else
				{
					param.Trim();
					if(!param.IsEmpty()) params.Add(param);
					param.Empty();
				}
			}
		}

		if(!cmd.Find(L"1c") || !cmd.Find(L"2c") || !cmd.Find(L"3c") || !cmd.Find(L"4c"))
			params.Add(cmd.Mid(2).Trim(L"&H")), cmd = cmd.Left(2);
		else if(!cmd.Find(L"1a") || !cmd.Find(L"2a") || !cmd.Find(L"3a") || !cmd.Find(L"4a"))
			params.Add(cmd.Mid(2).Trim(L"&H")), cmd = cmd.Left(2);
		else if(!cmd.Find(L"alpha"))
			params.Add(cmd.Mid(5).Trim(L"&H")), cmd = cmd.Left(5);
		else if(!cmd.Find(L"an"))
			params.Add(cmd.Mid(2)), cmd = cmd.Left(2);
		else if(!cmd.Find(L"a"))
			params.Add(cmd.Mid(1)), cmd = cmd.Left(1);
		else if(!cmd.Find(L"bord"))
			params.Add(cmd.Mid(4)), cmd = cmd.Left(4);
		else if(!cmd.Find(L"be"))
			params.Add(cmd.Mid(2)), cmd = cmd.Left(2);
		else if(!cmd.Find(L"b"))
			params.Add(cmd.Mid(1)), cmd = cmd.Left(1);
		else if(!cmd.Find(L"clip"))
			;
		else if(!cmd.Find(L"c"))
			params.Add(cmd.Mid(1).Trim(L"&H")), cmd = cmd.Left(1);
        else if(!cmd.Find(L"fade"))
			;
		else if(!cmd.Find(L"fe"))
			params.Add(cmd.Mid(2)), cmd = cmd.Left(2);
		else if(!cmd.Find(L"fn"))
			params.Add(cmd.Mid(2)), cmd = cmd.Left(2);
		else if(!cmd.Find(L"frx") || !cmd.Find(L"fry") || !cmd.Find(L"frz"))
			params.Add(cmd.Mid(3)), cmd = cmd.Left(3);
		else if(!cmd.Find(L"fax") || !cmd.Find(L"fay"))
			params.Add(cmd.Mid(3)), cmd = cmd.Left(3);
		else if(!cmd.Find(L"fr"))
			params.Add(cmd.Mid(2)), cmd = cmd.Left(2);
		else if(!cmd.Find(L"fscx") || !cmd.Find(L"fscy"))
			params.Add(cmd.Mid(4)), cmd = cmd.Left(4);
		else if(!cmd.Find(L"fsc"))
			params.Add(cmd.Mid(3)), cmd = cmd.Left(3);
		else if(!cmd.Find(L"fsp"))
			params.Add(cmd.Mid(3)), cmd = cmd.Left(3);
		else if(!cmd.Find(L"fs"))
			params.Add(cmd.Mid(2)), cmd = cmd.Left(2);
		else if(!cmd.Find(L"i"))
			params.Add(cmd.Mid(1)), cmd = cmd.Left(1);
		else if(!cmd.Find(L"kt") || !cmd.Find(L"kf") || !cmd.Find(L"ko"))
			params.Add(cmd.Mid(2)), cmd = cmd.Left(2);
		else if(!cmd.Find(L"k") || !cmd.Find(L"K"))
			params.Add(cmd.Mid(1)), cmd = cmd.Left(1);
		else if(!cmd.Find(L"move"))
			;
		else if(!cmd.Find(L"org"))
			;
		else if(!cmd.Find(L"pbo"))
			params.Add(cmd.Mid(3)), cmd = cmd.Left(3);
		else if(!cmd.Find(L"pos"))
			;
		else if(!cmd.Find(L"p"))
			params.Add(cmd.Mid(1)), cmd = cmd.Left(1);
		else if(!cmd.Find(L"q"))
			params.Add(cmd.Mid(1)), cmd = cmd.Left(1);
		else if(!cmd.Find(L"r"))
			params.Add(cmd.Mid(1)), cmd = cmd.Left(1);
		else if(!cmd.Find(L"shad"))
			params.Add(cmd.Mid(4)), cmd = cmd.Left(4);
		else if(!cmd.Find(L"s"))
			params.Add(cmd.Mid(1)), cmd = cmd.Left(1);
		else if(!cmd.Find(L"t"))
			;
		else if(!cmd.Find(L"u"))
			params.Add(cmd.Mid(1)), cmd = cmd.Left(1);
		else
			nUnrecognizedTags++;

		nTags++;

		// TODO: call ParseStyleModifier(cmd, params, ..) and move the rest there

		CStringW p = params.GetCount() > 0 ? params[0] : L"";

		if(cmd == "1c" || cmd == L"2c" || cmd == L"3c" || cmd == L"4c")
		{
			int i = cmd[0] - '1';

			DWORD c = wcstol(p, NULL, 16);
			style.colors[i] = !p.IsEmpty()
				? (((int)CalcAnimation(c&0xff, style.colors[i]&0xff, fAnimate))&0xff
				  |((int)CalcAnimation(c&0xff00, style.colors[i]&0xff00, fAnimate))&0xff00
				  |((int)CalcAnimation(c&0xff0000, style.colors[i]&0xff0000, fAnimate))&0xff0000)
				: org.colors[i];
		}
		else if(cmd == L"1a" || cmd == L"2a" || cmd == L"3a" || cmd == L"4a")
		{
			int i = cmd[0] - '1';

			style.alpha[i] = !p.IsEmpty()
				? (BYTE)CalcAnimation(wcstol(p, NULL, 16), style.alpha[i], fAnimate)
				: org.alpha[i];
		}
		else if(cmd == L"alpha")
		{
			for(int i = 0; i < 4; i++)
			{
				style.alpha[i] = !p.IsEmpty()
					? (BYTE)CalcAnimation(wcstol(p, NULL, 16), style.alpha[i], fAnimate)
					: org.alpha[i];
			}
		}
		else if(cmd == L"an")
		{
			int n = wcstol(p, NULL, 10);
			if(sub->m_scrAlignment < 0)
                sub->m_scrAlignment = (n > 0 && n < 10) ? n : org.scrAlignment;
		}
		else if(cmd == L"a")
		{
			int n = wcstol(p, NULL, 10);
			if(sub->m_scrAlignment < 0)
                sub->m_scrAlignment = (n > 0 && n < 12) ? ((((n-1)&3)+1)+((n&4)?6:0)+((n&8)?3:0)) : org.scrAlignment;
		}
		else if(cmd == L"bord")
		{
			double n = CalcAnimation(wcstod(p, NULL), style.outlineWidth, fAnimate);
			style.outlineWidth = !p.IsEmpty()
				? (n < 0 ? 0 : n)
				: org.outlineWidth;
		}
		else if(cmd == L"be")
		{
			int n = wcstol(p, NULL, 10);
			style.fBlur = !p.IsEmpty()
				? (n == 0 ? false : n == 1 ? true : org.fBlur)
				: org.fBlur;
		}
		else if(cmd == L"b")
		{
			int n = wcstol(p, NULL, 10);
			style.fontWeight = !p.IsEmpty()
				? (n == 0 ? FW_NORMAL : n == 1 ? FW_BOLD : n >= 100 ? n : org.fontWeight)
				: org.fontWeight;
		}
		else if(cmd == L"clip")
		{
			if(params.GetCount() == 1 && !sub->m_pClipper)
			{
				sub->m_pClipper = new CClipper(params[0], CSize(m_size.cx>>3, m_size.cy>>3), sub->m_scalex, sub->m_scaley);
			}
			else if(params.GetCount() == 2 && !sub->m_pClipper)
			{
				int scale = max(wcstol(p, NULL, 10), 1);
				sub->m_pClipper = new CClipper(params[1], CSize(m_size.cx>>3, m_size.cy>>3), sub->m_scalex/(1<<(scale-1)), sub->m_scaley/(1<<(scale-1)));
			}
			else if(params.GetCount() == 4)
			{
				CRect r;

				r.SetRect(
					wcstol(params[0], NULL, 10),
					wcstol(params[1], NULL, 10),
					wcstol(params[2], NULL, 10),
					wcstol(params[3], NULL, 10));

				CPoint o(0, 0);

				if(sub->m_relativeTo == 1) // TODO: this should also apply to the other two clippings above
				{
					o.x = m_vidrect.left>>3;
					o.y = m_vidrect.top>>3;
				}

				sub->m_clip.SetRect(
					(int)CalcAnimation(sub->m_scalex*r.left + o.x, sub->m_clip.left, fAnimate),
					(int)CalcAnimation(sub->m_scaley*r.top + o.y, sub->m_clip.top, fAnimate),
					(int)CalcAnimation(sub->m_scalex*r.right + o.x, sub->m_clip.right, fAnimate),
					(int)CalcAnimation(sub->m_scaley*r.bottom + o.y, sub->m_clip.bottom, fAnimate));
			}
		}
		else if(cmd == L"c")
		{
			DWORD c = wcstol(p, NULL, 16);
			style.colors[0] = !p.IsEmpty()
				? (((int)CalcAnimation(c&0xff, style.colors[0]&0xff, fAnimate))&0xff
				  |((int)CalcAnimation(c&0xff00, style.colors[0]&0xff00, fAnimate))&0xff00
				  |((int)CalcAnimation(c&0xff0000, style.colors[0]&0xff0000, fAnimate))&0xff0000)
				: org.colors[0];
		}
        else if(cmd == L"fade" || cmd == L"fad")
		{
			if(params.GetCount() == 7 && !sub->m_effects[EF_FADE])// {\fade(a1=param[0], a2=param[1], a3=param[2], t1=t[0], t2=t[1], t3=t[2], t4=t[3])
			{
				if(Effect* e = new Effect)
				{
					for(int i = 0; i < 3; i++)
						e->param[i] = wcstol(params[i], NULL, 10);
					for(int i = 0; i < 4; i++)
						e->t[i] = wcstol(params[3+i], NULL, 10);
	                
					sub->m_effects[EF_FADE] = e;
				}
			}
			else if(params.GetCount() == 2 && !sub->m_effects[EF_FADE]) // {\fad(t1=t[1], t2=t[2])
			{
				if(Effect* e = new Effect)
				{
					e->param[0] = e->param[2] = 0xff;
					e->param[1] = 0x00;
					for(int i = 1; i < 3; i++) 
						e->t[i] = wcstol(params[i-1], NULL, 10);
					e->t[0] = e->t[3] = -1; // will be substituted with "start" and "end"

					sub->m_effects[EF_FADE] = e;
				}
			}
		}
		else if(cmd == L"fax")
		{
			style.fontShiftX = !p.IsEmpty()
				? CalcAnimation(wcstod(p, NULL), style.fontShiftX, fAnimate)
				: org.fontShiftX;
		}
		else if(cmd == L"fay")
		{
			style.fontShiftY = !p.IsEmpty()
				? CalcAnimation(wcstod(p, NULL), style.fontShiftY, fAnimate)
				: org.fontShiftY;
		}
		else if(cmd == L"fe")
		{
			int n = wcstol(p, NULL, 10);
			style.charSet = !p.IsEmpty()
				? n
				: org.charSet;
		}
		else if(cmd == L"fn")
		{
			style.fontName = (!p.IsEmpty() && p != '0')
				? CString(p).Trim()
				: org.fontName;
		}
		else if(cmd == L"frx")
		{
			style.fontAngleX = !p.IsEmpty()
				? CalcAnimation(wcstod(p, NULL), style.fontAngleX, fAnimate)
				: org.fontAngleX;
		}
		else if(cmd == L"fry")
		{
			style.fontAngleY = !p.IsEmpty()
				? CalcAnimation(wcstod(p, NULL), style.fontAngleY, fAnimate)
				: org.fontAngleY;
		}
		else if(cmd == L"frz" || cmd == L"fr")
		{
			style.fontAngleZ = !p.IsEmpty()
				? CalcAnimation(wcstod(p, NULL), style.fontAngleZ, fAnimate)
				: org.fontAngleZ;
		}
		else if(cmd == L"fscx")
		{
			double n = CalcAnimation(wcstol(p, NULL, 10), style.fontScaleX, fAnimate);
			style.fontScaleX = !p.IsEmpty()
				? ((n < 0) ? 0 : n)
				: org.fontScaleX;
		}
		else if(cmd == L"fscy")
		{
			double n = CalcAnimation(wcstol(p, NULL, 10), style.fontScaleY, fAnimate);
			style.fontScaleY = !p.IsEmpty()
				? ((n < 0) ? 0 : n)
				: org.fontScaleY;
		}
		else if(cmd == L"fsc")
		{
			style.fontScaleX = org.fontScaleX;
			style.fontScaleY = org.fontScaleY;
		}
		else if(cmd == L"fsp")
		{
			style.fontSpacing = !p.IsEmpty()
				? CalcAnimation(wcstod(p, NULL), style.fontSpacing, fAnimate)
				: org.fontSpacing;
		}
		else if(cmd == L"fs")
		{
			if(!p.IsEmpty())
			{
				if(p[0] == '-' || p[0] == '+')
				{
					double n = CalcAnimation(style.fontSize + style.fontSize*wcstol(p, NULL, 10)/10, style.fontSize, fAnimate);
					style.fontSize = (n > 0) ? n : org.fontSize;
				}
				else
				{
					double n = CalcAnimation(wcstol(p, NULL, 10), style.fontSize, fAnimate);
					style.fontSize = (n > 0) ? n : org.fontSize;
				}
			}
			else
			{
				style.fontSize = org.fontSize;
			}
		}
		else if(cmd == L"i")
		{
			int n = wcstol(p, NULL, 10);
			style.fItalic = !p.IsEmpty()
				? (n == 0 ? false : n == 1 ? true : org.fItalic)
				: org.fItalic;
		}
		else if(cmd == L"kt")
		{
			m_kstart = !p.IsEmpty() 
				? wcstol(p, NULL, 10)*10
				: 0;
			m_kend = m_kstart;
		}
		else if(cmd == L"kf" || cmd == L"K")
		{
			m_ktype = 1;
			m_kstart = m_kend;
			m_kend += !p.IsEmpty() 
				? wcstol(p, NULL, 10)*10
				: 1000;
		}
		else if(cmd == L"ko")
		{
			m_ktype = 2;
			m_kstart = m_kend;
			m_kend += !p.IsEmpty() 
				? wcstol(p, NULL, 10)*10
				: 1000;
		}
		else if(cmd == L"k")
		{
			m_ktype = 0;
			m_kstart = m_kend;
			m_kend += !p.IsEmpty() 
				? wcstol(p, NULL, 10)*10
				: 1000;
		}
		else if(cmd == L"move") // {\move(x1=param[0], y1=param[1], x2=param[2], y2=param[3][, t1=t[0], t2=t[1]])}
		{
			if((params.GetCount() == 4 || params.GetCount() == 6) && !sub->m_effects[EF_MOVE])
			{
				if(Effect* e = new Effect)
				{
					e->param[0] = (int)(sub->m_scalex*wcstod(params[0], NULL)*8);
					e->param[1] = (int)(sub->m_scaley*wcstod(params[1], NULL)*8);
					e->param[2] = (int)(sub->m_scalex*wcstod(params[2], NULL)*8);
					e->param[3] = (int)(sub->m_scaley*wcstod(params[3], NULL)*8);

					e->t[0] = e->t[1] = -1;

					if(params.GetCount() == 6)
					{
						for(int i = 0; i < 2; i++)
							e->t[i] = wcstol(params[4+i], NULL, 10);
					}

					sub->m_effects[EF_MOVE] = e;
				}
			}
		}
		else if(cmd == L"org") // {\org(x=param[0], y=param[1])}
		{
			if(params.GetCount() == 2 && !sub->m_effects[EF_ORG])
			{
				if(Effect* e = new Effect)
				{
					e->param[0] = (int)(sub->m_scalex*wcstod(params[0], NULL)*8);
					e->param[1] = (int)(sub->m_scaley*wcstod(params[1], NULL)*8);

					sub->m_effects[EF_ORG] = e;
				}
			}
		}
		else if(cmd == L"pbo")
		{
			m_polygonBaselineOffset = wcstol(p, NULL, 10);
		}
		else if(cmd == L"pos")
		{
			if(params.GetCount() == 2 && !sub->m_effects[EF_MOVE])
			{
				if(Effect* e = new Effect)
				{
					e->param[0] = e->param[2] = (int)(sub->m_scalex*wcstod(params[0], NULL)*8);
					e->param[1] = e->param[3] = (int)(sub->m_scaley*wcstod(params[1], NULL)*8);
					e->t[0] = e->t[1] = 0;

					sub->m_effects[EF_MOVE] = e;
				}
			}
		}
		else if(cmd == L"p")
		{
			int n = wcstol(p, NULL, 10);
			m_nPolygon = (n <= 0 ? 0 : n);
		}
		else if(cmd == L"q")
		{
			int n = wcstol(p, NULL, 10);
			sub->m_wrapStyle = !p.IsEmpty() && (0 <= n && n <= 3)
				? n
				: m_defaultWrapStyle;
		}
		else if(cmd == L"r")
		{
			STSStyle* val;
			style = (!p.IsEmpty() && m_styles.Lookup(CString(p), val) && val) ? *val : org;
		}
		else if(cmd == L"shad")
		{
			double n = CalcAnimation(wcstod(p, NULL), style.shadowDepth, fAnimate);
			style.shadowDepth = !p.IsEmpty()
				? (n < 0 ? 0 : n)
				: org.shadowDepth;
		}
		else if(cmd == L"s")
		{
			int n = wcstol(p, NULL, 10);
			style.fStrikeOut = !p.IsEmpty()
				? (n == 0 ? false : n == 1 ? true : org.fStrikeOut)
				: org.fStrikeOut;
		}
		else if(cmd == L"t") // \t([<t1>,<t2>,][<accel>,]<style modifiers>)
		{
			p.Empty();

			m_animStart = m_animEnd = 0;
			m_animAccel = 1;

			if(params.GetCount() == 1)
			{
				p = params[0];
			}
			else if(params.GetCount() == 2)
			{
				m_animAccel = wcstod(params[0], NULL);
				p = params[1];
			}
			else if(params.GetCount() == 3)
			{
				m_animStart = (int)wcstod(params[0], NULL); 
				m_animEnd = (int)wcstod(params[1], NULL);
				p = params[2];
			}
			else if(params.GetCount() == 4)
			{
				m_animStart = wcstol(params[0], NULL, 10); 
				m_animEnd = wcstol(params[1], NULL, 10);
				m_animAccel = wcstod(params[2], NULL);
				p = params[3];
			}

			ParseSSATag(sub, p, style, org, true);

			sub->m_fAnimated = true;
		}
		else if(cmd == L"u")
		{
			int n = wcstol(p, NULL, 10);
			style.fUnderline = !p.IsEmpty()
				? (n == 0 ? false : n == 1 ? true : org.fUnderline)
				: org.fUnderline;
		}
	}

//	return(nUnrecognizedTags < nTags);
	return(true); // there are ppl keeping coments inside {}, lets make them happy now
}

bool CRenderedTextSubtitle::ParseHtmlTag(CSubtitle* sub, CStringW str, STSStyle& style, STSStyle& org)
{
	if(str.Find(L"!--") == 0)
		return(true);

	bool fClosing = str[0] == '/';
	str.Trim(L" /");

	int i = str.Find(' ');
	if(i < 0) i = str.GetLength();

	CStringW tag = str.Left(i).MakeLower();
	str = str.Mid(i).Trim();

	CAtlArray<CStringW> attribs, params;
	while((i = str.Find('=')) > 0)
	{
		attribs.Add(str.Left(i).Trim().MakeLower());
		str = str.Mid(i+1);
		for(i = 0; _istspace(str[i]); i++);
		str = str.Mid(i);
		if(str[0] == '\"') {str = str.Mid(1); i = str.Find('\"');}
		else i = str.Find(' ');
		if(i < 0) i = str.GetLength();
		params.Add(str.Left(i).Trim().MakeLower());
		str = str.Mid(i+1);
	}

	if(tag == L"text")
		;
	else if(tag == L"b" || tag == L"strong")
		style.fontWeight = !fClosing ? FW_BOLD : org.fontWeight;
	else if(tag == L"i" || tag == L"em")
		style.fItalic = !fClosing ? true : org.fItalic;
	else if(tag == L"u")
		style.fUnderline = !fClosing ? true : org.fUnderline;
	else if(tag == L"s" || tag == L"strike" || tag == L"del")
		style.fStrikeOut = !fClosing ? true : org.fStrikeOut;
	else if(tag == L"font")
	{
		if(!fClosing)
		{
			for(i = 0; i < attribs.GetCount(); i++)
			{
				if(params[i].IsEmpty()) continue;

				int nColor = -1;

				if(attribs[i] == L"face")
				{
					style.fontName = params[i];
				}
				else if(attribs[i] == L"size")
				{
					if(params[i][0] == '+')
						style.fontSize += wcstol(params[i], NULL, 10);
					else if(params[i][0] == '-')
						style.fontSize -= wcstol(params[i], NULL, 10);
					else
						style.fontSize = wcstol(params[i], NULL, 10);
				}
				else if(attribs[i] == L"color")
				{
					nColor = 0;
				}
				else if(attribs[i] == L"outline-color")
				{
					nColor = 2;
				}
				else if(attribs[i] == L"outline-level")
				{
					style.outlineWidth = wcstol(params[i], NULL, 10);
				}
				else if(attribs[i] == L"shadow-color")
				{
					nColor = 3;
				}
				else if(attribs[i] == L"shadow-level")
				{
					style.shadowDepth = wcstol(params[i], NULL, 10);
				}

				if(nColor >= 0 && nColor < 4)
				{
					CString key = WToT(params[i]).TrimLeft('#');
					DWORD val;
					if(g_colors.Lookup(key, val))
						style.colors[nColor] = val;
					else if((style.colors[nColor] = _tcstol(key, NULL, 16)) == 0)
						style.colors[nColor] = 0x00ffffff;  // default is white
					style.colors[nColor] = ((style.colors[nColor]>>16)&0xff)|((style.colors[nColor]&0xff)<<16)|(style.colors[nColor]&0x00ff00);
				}
			}
		}
		else
		{
			style.fontName = org.fontName;
			style.fontSize = org.fontSize;
			memcpy(style.colors, org.colors, sizeof(style.colors));
		}
	}
	else if(tag == L"k" && attribs.GetCount() == 1 && attribs[0] == L"t")
	{
		m_ktype = 1;
		m_kstart = m_kend;
		m_kend += wcstol(params[0], NULL, 10);
	}
	else 
		return(false);

	return(true);
}

double CRenderedTextSubtitle::CalcAnimation(double dst, double src, bool fAnimate)
{
	int s = m_animStart ? m_animStart : 0;
	int e = m_animEnd ? m_animEnd : m_delay;

	if(fabs(dst-src) >= 0.0001 && fAnimate)
	{
		if(m_time < s) dst = src;
		else if(s <= m_time && m_time < e)
		{
			double t = pow(1.0 * (m_time - s) / (e - s), m_animAccel);
			dst = (1 - t) * src + t * dst;
		}
//		else dst = dst;
	}

	return(dst);
}

CSubtitle* CRenderedTextSubtitle::GetSubtitle(int entry)
{
	CSubtitle* sub;
	if(m_subtitleCache.Lookup(entry, sub)) 
	{
		if(sub->m_fAnimated) {delete sub; sub = NULL;}
		else return(sub);
	}

	sub = new CSubtitle();
	if(!sub) return(NULL);

	CStringW str = GetStrW(entry, true);

	STSStyle stss, orgstss;
	GetStyle(entry, stss);
	orgstss = stss;

	sub->m_clip.SetRect(0, 0, m_size.cx>>3, m_size.cy>>3);
	sub->m_scrAlignment = -stss.scrAlignment;
	sub->m_wrapStyle = m_defaultWrapStyle;
	sub->m_fAnimated = false;
	sub->m_relativeTo = stss.relativeTo;

	sub->m_scalex = m_dstScreenSize.cx > 0 ? 1.0 * (stss.relativeTo == 1 ? m_vidrect.Width() : m_size.cx) / (m_dstScreenSize.cx*8) : 1.0;
	sub->m_scaley = m_dstScreenSize.cy > 0 ? 1.0 * (stss.relativeTo == 1 ? m_vidrect.Height() : m_size.cy) / (m_dstScreenSize.cy*8) : 1.0;

	m_animStart = m_animEnd = 0;
	m_animAccel = 1;
	m_ktype = m_kstart = m_kend = 0;
	m_nPolygon = 0;
	m_polygonBaselineOffset = 0;

	ParseEffect(sub, GetAt(entry).effect);

	while(!str.IsEmpty())
	{
		bool fParsed = false;

		int i;

		if(str[0] == '{' && (i = str.Find(L'}')) > 0)
		{
			if(fParsed = ParseSSATag(sub, str.Mid(1, i-1), stss, orgstss))
				str = str.Mid(i+1);
		}
		else if(str[0] == '<' && (i = str.Find(L'>')) > 0)
		{
			if(fParsed = ParseHtmlTag(sub, str.Mid(1, i-1), stss, orgstss))
				str = str.Mid(i+1);
		}

		if(fParsed)
		{
			i = str.FindOneOf(L"{<");
			if(i < 0) i = str.GetLength();
			if(i == 0) continue;
		}
		else
		{
			i = str.Mid(1).FindOneOf(L"{<");
			if(i < 0) i = str.GetLength()-1;
			i++;
		}

		STSStyle tmp = stss;

		tmp.fontSize = sub->m_scaley*tmp.fontSize*64;
		tmp.fontSpacing = sub->m_scalex*tmp.fontSpacing*64;
		tmp.outlineWidth *= (m_fScaledBAS ? ((sub->m_scalex+sub->m_scaley)/2) : 1) * 8;
		tmp.shadowDepth *= (m_fScaledBAS ? ((sub->m_scalex+sub->m_scaley)/2) : 1) * 8;

		if(m_nPolygon)
		{
			ParsePolygon(sub, str.Left(i), tmp);
		}
		else
		{
			ParseString(sub, str.Left(i), tmp);
		}

		str = str.Mid(i);
	}

	// just a "work-around" solution... in most cases nobody will want to use \org together with moving but without rotating the subs
	if(sub->m_effects[EF_ORG] && (sub->m_effects[EF_MOVE] || sub->m_effects[EF_BANNER] || sub->m_effects[EF_SCROLL]))
		sub->m_fAnimated = true;

	sub->m_scrAlignment = abs(sub->m_scrAlignment);

	STSEntry stse = GetAt(entry);
	CRect marginRect = stse.marginRect;
	if(marginRect.left == 0) marginRect.left = orgstss.marginRect.left;
	if(marginRect.top == 0) marginRect.top = orgstss.marginRect.top;
	if(marginRect.right == 0) marginRect.right = orgstss.marginRect.right;
	if(marginRect.bottom == 0) marginRect.bottom = orgstss.marginRect.bottom;
	marginRect.left = (int)(sub->m_scalex*marginRect.left*8);
	marginRect.top = (int)(sub->m_scaley*marginRect.top*8);
	marginRect.right = (int)(sub->m_scalex*marginRect.right*8);
	marginRect.bottom = (int)(sub->m_scaley*marginRect.bottom*8);
	
	if(stss.relativeTo == 1)
	{
		marginRect.left += m_vidrect.left;
		marginRect.top += m_vidrect.top;
		marginRect.right += m_size.cx - m_vidrect.right;
		marginRect.bottom += m_size.cy - m_vidrect.bottom;
	}

	sub->CreateClippers(m_size);

	sub->MakeLines(m_size, marginRect);

	m_subtitleCache[entry] = sub;

	return(sub);
}

//

STDMETHODIMP CRenderedTextSubtitle::NonDelegatingQueryInterface(REFIID riid, void** ppv)
{
    CheckPointer(ppv, E_POINTER);
    *ppv = NULL;

    return 
		QI(IPersist)
		QI(ISubStream)
		QI(ISubPicProvider)
		__super::NonDelegatingQueryInterface(riid, ppv);
}

// ISubPicProvider

STDMETHODIMP_(POSITION) CRenderedTextSubtitle::GetStartPosition(REFERENCE_TIME rt, double fps)
{
	int iSegment = -1;
	SearchSubs((int)(rt/10000), fps, &iSegment, NULL);
	
	if(iSegment < 0) iSegment = 0;

	return(GetNext((POSITION)iSegment));
}

STDMETHODIMP_(POSITION) CRenderedTextSubtitle::GetNext(POSITION pos)
{
	int iSegment = (int)pos;

	const STSSegment* stss;
	while((stss = GetSegment(iSegment)) && stss->subs.GetCount() == 0)
		iSegment++;

	return(stss ? (POSITION)(iSegment+1) : NULL);
}

STDMETHODIMP_(REFERENCE_TIME) CRenderedTextSubtitle::GetStart(POSITION pos, double fps)
{
	return(10000i64 * TranslateSegmentStart((int)pos-1, fps));
}

STDMETHODIMP_(REFERENCE_TIME) CRenderedTextSubtitle::GetStop(POSITION pos, double fps)
{
	return(10000i64 * TranslateSegmentEnd((int)pos-1, fps));
}

STDMETHODIMP_(bool) CRenderedTextSubtitle::IsAnimated(POSITION pos)
{
	// TODO
	return(true);
}

struct LSub {int idx, layer, readorder;};

static int lscomp(const void* ls1, const void* ls2)
{
	int ret = ((LSub*)ls1)->layer - ((LSub*)ls2)->layer;
	if(!ret) ret = ((LSub*)ls1)->readorder - ((LSub*)ls2)->readorder;
	return(ret);
}

STDMETHODIMP CRenderedTextSubtitle::Render(SubPicDesc& spd, REFERENCE_TIME rt, double fps, RECT& bbox)
{
	CRect bbox2(0,0,0,0);

	if(m_size != CSize(spd.w*8, spd.h*8) || m_vidrect != CRect(spd.vidrect.left*8, spd.vidrect.top*8, spd.vidrect.right*8, spd.vidrect.bottom*8))
		Init(CSize(spd.w, spd.h), spd.vidrect);

	int t = (int)(rt / 10000);

	int segment;
	const STSSegment* stss = SearchSubs(t, fps, &segment);
	if(!stss) return S_FALSE;

	// clear any cached subs not in the range of +/-30secs measured from the segment's bounds
	{
		POSITION pos = m_subtitleCache.GetStartPosition();
		while(pos)
		{
			int key;
			CSubtitle* value;
			m_subtitleCache.GetNextAssoc(pos, key, value);

			STSEntry& stse = GetAt(key);
			if(stse.end <= (t-30000) || stse.start > (t+30000)) 
			{
				delete value;
				m_subtitleCache.RemoveKey(key);
				pos = m_subtitleCache.GetStartPosition();
			}
		}
	}

	m_sla.AdvanceToSegment(segment, stss->subs);

	CAtlArray<LSub> subs;

	for(int i = 0, j = stss->subs.GetCount(); i < j; i++)
	{
		LSub ls;
		ls.idx = stss->subs[i];
		ls.layer = GetAt(stss->subs[i]).layer;
		ls.readorder = GetAt(stss->subs[i]).readorder;
		subs.Add(ls);
	}

	qsort(subs.GetData(), subs.GetCount(), sizeof(LSub), lscomp);

	for(int i = 0, j = subs.GetCount(); i < j; i++)
	{
		int entry = subs[i].idx;

		STSEntry stse = GetAt(entry);

		{
			int start = TranslateStart(entry, fps);
			m_time = t - start;
			m_delay = TranslateEnd(entry, fps) - start;
		}

		CSubtitle* s = GetSubtitle(entry);
		if(!s) continue;

		CRect clipRect = s->m_clip;
		CRect r = s->m_rect;
		CSize spaceNeeded = r.Size();

		// apply the effects

		bool fPosOverride = false, fOrgOverride = false;

		int alpha = 0x00;

		CPoint org2;

		for(int k = 0; k < EF_NUMBEROFEFFECTS; k++)
		{
			if(!s->m_effects[k]) continue;

			switch(k)
			{
			case EF_MOVE: // {\move(x1=param[0], y1=param[1], x2=param[2], y2=param[3], t1=t[0], t2=t[1])}
				{
					CPoint p;
					CPoint p1(s->m_effects[k]->param[0], s->m_effects[k]->param[1]);
					CPoint p2(s->m_effects[k]->param[2], s->m_effects[k]->param[3]);
					int t1 = s->m_effects[k]->t[0];
					int t2 = s->m_effects[k]->t[1];

					if(t2 < t1) {int t = t1; t1 = t2; t2 = t;}

					if(t1 <= 0 && t2 <= 0) {t1 = 0; t2 = m_delay;}

					if(m_time <= t1) p = p1;
					else if (p1 == p2) p = p1; // jfs: avoid rounding error problems sometimes causing subtitles with \pos to jump around a bit
					else if(t1 < m_time && m_time < t2)
					{
						double t = 1.0*(m_time-t1)/(t2-t1);
						p.x = (int)((1-t)*p1.x + t*p2.x);
						p.y = (int)((1-t)*p1.y + t*p2.y);
					}
					else p = p2;

					r = CRect(
							CPoint((s->m_scrAlignment%3) == 1 ? p.x : (s->m_scrAlignment%3) == 0 ? p.x - spaceNeeded.cx : p.x - (spaceNeeded.cx+1)/2,
									s->m_scrAlignment <= 3 ? p.y - spaceNeeded.cy : s->m_scrAlignment <= 6 ? p.y - (spaceNeeded.cy+1)/2 : p.y),
							spaceNeeded);

					if(s->m_relativeTo == 1)
						r.OffsetRect(m_vidrect.TopLeft());

					fPosOverride = true;
				}
				break;
			case EF_ORG: // {\org(x=param[0], y=param[1])}
				{
					org2 = CPoint(s->m_effects[k]->param[0], s->m_effects[k]->param[1]);

					fOrgOverride = true;
				}
				break;
			case EF_FADE: // {\fade(a1=param[0], a2=param[1], a3=param[2], t1=t[0], t2=t[1], t3=t[2], t4=t[3]) or {\fad(t1=t[1], t2=t[2])
				{
					int t1 = s->m_effects[k]->t[0];
					int t2 = s->m_effects[k]->t[1];
					int t3 = s->m_effects[k]->t[2];
					int t4 = s->m_effects[k]->t[3];

					if(t1 == -1 && t4 == -1) {t1 = 0; t3 = m_delay-t3; t4 = m_delay;}

					if(m_time < t1) alpha = s->m_effects[k]->param[0];
					else if(m_time >= t1 && m_time < t2)
					{
						double t = 1.0 * (m_time - t1) / (t2 - t1);
						alpha = (int)(s->m_effects[k]->param[0]*(1-t) + s->m_effects[k]->param[1]*t);
					}
					else if(m_time >= t2 && m_time < t3) alpha = s->m_effects[k]->param[1];
					else if(m_time >= t3 && m_time < t4)
					{
						double t = 1.0 * (m_time - t3) / (t4 - t3);
						alpha = (int)(s->m_effects[k]->param[1]*(1-t) + s->m_effects[k]->param[2]*t);
					}
					else if(m_time >= t4) alpha = s->m_effects[k]->param[2];
				}
				break;
			case EF_BANNER: // Banner;delay=param[0][;leftoright=param[1];fadeawaywidth=param[2]]
				{
					int left = s->m_relativeTo == 1 ? m_vidrect.left : 0, 
						right = s->m_relativeTo == 1 ? m_vidrect.right : m_size.cx;

					r.left = !!s->m_effects[k]->param[1] 
						? (left/*marginRect.left*/ - spaceNeeded.cx) + (int)(m_time*8.0/s->m_effects[k]->param[0])
						: (right /*- marginRect.right*/) - (int)(m_time*8.0/s->m_effects[k]->param[0]);

					r.right = r.left + spaceNeeded.cx;

					clipRect &= CRect(left>>3, clipRect.top, right>>3, clipRect.bottom);

					fPosOverride = true;
				}
				break;
			case EF_SCROLL: // Scroll up/down(toptobottom=param[3]);top=param[0];bottom=param[1];delay=param[2][;fadeawayheight=param[4]]
				{
					r.top = !!s->m_effects[k]->param[3]
						? s->m_effects[k]->param[0] + (int)(m_time*8.0/s->m_effects[k]->param[2]) - spaceNeeded.cy
						: s->m_effects[k]->param[1] - (int)(m_time*8.0/s->m_effects[k]->param[2]);

					r.bottom = r.top + spaceNeeded.cy;

					CRect cr(0, (s->m_effects[k]->param[0] + 4) >> 3, spd.w, (s->m_effects[k]->param[1] + 4) >> 3);

					if(s->m_relativeTo == 1)
						r.top += m_vidrect.top, 
						r.bottom += m_vidrect.top, 
						cr.top += m_vidrect.top>>3, 
						cr.bottom += m_vidrect.top>>3;

					clipRect &= cr;

					fPosOverride = true;
				}
				break;
			default:
				break;
			}
		}

		if(!fPosOverride && !fOrgOverride && !s->m_fAnimated) 
			r = m_sla.AllocRect(s, segment, entry, stse.layer, m_collisions);

		CPoint org;
		org.x = (s->m_scrAlignment%3) == 1 ? r.left : (s->m_scrAlignment%3) == 2 ? r.CenterPoint().x : r.right;
		org.y = s->m_scrAlignment <= 3 ? r.bottom : s->m_scrAlignment <= 6 ? r.CenterPoint().y : r.top;

		if(!fOrgOverride) org2 = org;

		BYTE* pAlphaMask = s->m_pClipper?s->m_pClipper->m_pAlphaMask:NULL;

		CPoint p, p2(0, r.top);

		POSITION pos;

		p = p2;

		pos = s->GetHeadPosition();
		while(pos) 
		{
			CLine* l = s->GetNext(pos);

			p.x = (s->m_scrAlignment%3) == 1 ? org.x
				: (s->m_scrAlignment%3) == 0 ? org.x - l->m_width
				:							   org.x - (l->m_width/2);

			bbox2 |= l->PaintShadow(spd, clipRect, pAlphaMask, p, org2, m_time, alpha);

			p.y += l->m_ascent + l->m_descent;
		}

		p = p2;

		pos = s->GetHeadPosition();
		while(pos) 
		{
			CLine* l = s->GetNext(pos);

			p.x = (s->m_scrAlignment%3) == 1 ? org.x
				: (s->m_scrAlignment%3) == 0 ? org.x - l->m_width
				:							   org.x - (l->m_width/2);

			bbox2 |= l->PaintOutline(spd, clipRect, pAlphaMask, p, org2, m_time, alpha);

			p.y += l->m_ascent + l->m_descent;
		}

		p = p2;

		pos = s->GetHeadPosition();
		while(pos) 
		{
			CLine* l = s->GetNext(pos);

			p.x = (s->m_scrAlignment%3) == 1 ? org.x
				: (s->m_scrAlignment%3) == 0 ? org.x - l->m_width
				:							   org.x - (l->m_width/2);

			bbox2 |= l->PaintBody(spd, clipRect, pAlphaMask, p, org2, m_time, alpha);

			p.y += l->m_ascent + l->m_descent;
		}
	}

	bbox = bbox2;

	return (subs.GetCount() && !bbox2.IsRectEmpty()) ? S_OK : S_FALSE;
}

// IPersist

STDMETHODIMP CRenderedTextSubtitle::GetClassID(CLSID* pClassID)
{
	return pClassID ? *pClassID = __uuidof(this), S_OK : E_POINTER;
}

// ISubStream

STDMETHODIMP_(int) CRenderedTextSubtitle::GetStreamCount()
{
	return(1);
}

STDMETHODIMP CRenderedTextSubtitle::GetStreamInfo(int iStream, WCHAR** ppName, LCID* pLCID)
{
	if(iStream != 0) return E_INVALIDARG;

	if(ppName)
	{
		if(!(*ppName = (WCHAR*)CoTaskMemAlloc((m_name.GetLength()+1)*sizeof(WCHAR))))
			return E_OUTOFMEMORY;

		wcscpy(*ppName, CStringW(m_name));
	}

	if(pLCID)
	{
		*pLCID = 0; // TODO
	}

	return S_OK;
}

STDMETHODIMP_(int) CRenderedTextSubtitle::GetStream()
{
	return(0);
}

STDMETHODIMP CRenderedTextSubtitle::SetStream(int iStream)
{
	return iStream == 0 ? S_OK : E_FAIL;
}

STDMETHODIMP CRenderedTextSubtitle::Reload()
{
	CFileStatus s;
	if(!CFile::GetStatus(m_path, s)) return E_FAIL;
	return !m_path.IsEmpty() && Open(m_path, DEFAULT_CHARSET) ? S_OK : E_FAIL;
}