/*
	This file is part of radialdistort, a filter plugin for Adobe Illustrator
    Copyright (C) 1996-2005 Toby Thain, toby@telegraphics.com.au

    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 of the License, 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 this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "sprintf_tiny.h"
#define SPRINTF sprintf_tiny

// ---- platform dependent stuff

// the Mac 68K runtime model doesn't allow plug-ins to have global data 
// (unless we use a different base register than A5), so on that platform
// we put global variables on the heap instead
#ifdef GENERATING68K
	#define FAKE_GLOBALS 1
#else
	// when building for Carbon, GENERATING68K is not even defined!
	#define FAKE_GLOBALS 0
#endif

#include "AIBlock.h"
#include "AIFilter.h"
#include "AIMatchingArt.h"
#include "AIFixedMath.h"
#include "AIArt.h"
#include "AIPath.h"
#include "AIMdMemory.h"
#include "ADMBasic.h"

// ---- API-version dependent stuff

#ifdef kAIRealMathSuite // AI 8.0 or later
	#include "AIRealMath.h"
	
	#define PICONSTANT kAIRealPi
	#define ONECONSTANT kAIRealOne
	
	typedef AIRealPoint pt,POINT;
	typedef AIRealRect RECT;
	typedef AIReal NUMBER;
	typedef AIRealMatrix MATRIX;

	#define FLOAT				// convert component of pt to floating point (null op)
	#define PRODUCT(a,b)		( (a)*(b) )
	#define QUOTIENT(a,b)		( (NUMBER)(a)/(b) )
	#define MATRIXSETROTATE		G(sRealMath)->AIRealMatrixSetRotate
	#define MATRIXXFORMPOINT	G(sRealMath)->AIRealMatrixXformPoint
	#define RECTUNION			G(sRealMath)->AIRealRectUnion
	#define POINTLENGTHANGLE	G(sRealMath)->AIRealPointLengthAngle
	#define POINTCLOSE			G(sRealMath)->AIRealPointClose
	#define LENGTH				G(sRealMath)->AIRealLength
#else
	#define PICONSTANT kFixedPi
	#define ONECONSTANT kFixedOne 

	typedef AIFixedPoint pt,POINT;
	typedef AIFixedRect RECT;
	typedef AIFixed NUMBER;
	typedef AIFixedMatrix MATRIX;

	#define FLOAT				G(sMath)->FixedToFloat // convert component of pt to floating point	
	#define PRODUCT				G(sMath)->FixedMul
	#define QUOTIENT			G(sMath)->FixedDiv
	#define MATRIXSETROTATE		G(sMath)->FixedMatrixSetRotate
	#define MATRIXXFORMPOINT	G(sMath)->FixedMatrixXformPoint
	#define RECTUNION			G(sMath)->FixedRectUnion
	#define POINTLENGTHANGLE	G(sMath)->FixedPointLengthAngle
	#define POINTCLOSE			G(sMath)->FixedPointClose
	#define LENGTH				G(sMath)->FixedLength
#endif	

#define MAX_DEPTH 16 // maximum recursion depth, when dividing curves
#define TOLERANCE (ONECONSTANT/100) // allow this much deviation from true distortion (pt)

#if FAKE_GLOBALS
#define G(F) ( ( (struct globals*) (m)->globals )->F )
#else
#define G
#endif

#define ISFILTER