/*    Ming, an SWF output library    Copyright (C) 2002  Opaque Industries - http://www.opaque.net/    This library is free software; you can redistribute it and/or    modify it under the terms of the GNU Lesser General Public    License as published by the Free Software Foundation; either    version 2.1 of the License, or (at your option) any later version.    This library 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    Lesser General Public License for more details.    You should have received a copy of the GNU Lesser General Public    License along with this library; if not, write to the Free Software    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*//* $Id: linestyle.c,v 1.15 2008/02/14 13:57:39 krechert Exp $ */#include <stdlib.h>#include "libming.h"#include "linestyle.h"#include "fillstyle.h"#include "error.h"#define SWF_LINESTYLE_FLAG_FILL		(1<<11)struct SWFLineStyle_s{	unsigned short width;	byte r;	byte g;	byte b;	byte a;	/* LINESTYLE2 extensions */	// 16 bit flags	int flags;	float miterLimit;	SWFFillStyle fill;};/*  * sets simple linestyle  * width is set in TWIPS */SWFLineStyle newSWFLineStyle(unsigned short width,                             byte r, byte g, byte b, byte a){	SWFLineStyle line = (SWFLineStyle)malloc(sizeof(struct SWFLineStyle_s));	line->width = width;	line->r = r;	line->g = g;	line->b = b;	line->a = a;	line->flags = 0;	return line;}/* * create Linestyle2 introduce with SWF 8. * Linestyle2 extends Linestyle1 with some extra flags: * * Line cap style: select one of the following flags (default is round cap style) * SWF_LINESTYLE_CAP_ROUND  * SWF_LINESTYLE_CAP_NONE * SWF_LINESTYLE_CAP_SQUARE  * * Line join style: select one of the following flags (default is round join style) * SWF_LINESTYLE_JOIN_ROUND * SWF_LINESTYLE_JOIN_BEVEL  * SWF_LINESTYLE_JOIN_MITER   * * Scaling flags: disable horizontal / vertical scaling * SWF_LINESTYLE_FLAG_NOHSCALE * SWF_LINESTYLE_FLAG_NOVSCALE  * * Enable pixel hinting to correct blurry vertical / horizontal lines * -> all anchors will be aligned to full pixels * SWF_LINESTYLE_FLAG_HINTING   * * Disable stroke closure: if no-close flag is set caps will be applied  * instead of joins * SWF_LINESTYLE_FLAG_NOCLOSE * * End-cap style: default round * SWF_LINESTYLE_FLAG_ENDCAP_ROUND * SWF_LINESTYLE_FLAG_ENDCAP_NONE * SWF_LINESTYLE_FLAG_ENDCAP_SQUARE * * If join style is SWF_LINESTYLE_JOIN_MITER a miter limit factor  * must be set. Miter max length is then calculated as: * max miter len = miter limit * width. * If join style is not miter, this value will be ignored. */SWFLineStyle newSWFLineStyle2(unsigned short width, byte r, byte g, byte b, byte a,                               int flags, float miterLimit){	SWFLineStyle line = (SWFLineStyle)malloc(sizeof(struct SWFLineStyle_s));	line->width = width;	line->r = r;	line->g = g;	line->b = b;	line->a = a;	line->flags = 0 | flags;	line->miterLimit = miterLimit;	line->fill = NULL;		return line;}/* * create Linestyle2 introduce with SWF 8. *  * Instead of providing a fill color, a FillStyle can be applied * to a line. *  * Linestyle2 also extends Linestyle1 with some extra flags: * * Line cap style: select one of the following flags (default is round cap style) * SWF_LINESTYLE_CAP_ROUND  * SWF_LINESTYLE_CAP_NONE * SWF_LINESTYLE_CAP_SQUARE  * * Line join style: select one of the following flags (default is round join style) * SWF_LINESTYLE_JOIN_ROUND * SWF_LINESTYLE_JOIN_BEVEL  * SWF_LINESTYLE_JOIN_MITER   * * Scaling flags: disable horizontal / vertical scaling * SWF_LINESTYLE_FLAG_NOHSCALE * SWF_LINESTYLE_FLAG_NOVSCALE  * * Enable pixel hinting to correct blurry vertical / horizontal lines * -> all anchors will be aligned to full pixels * SWF_LINESTYLE_FLAG_HINTING   * * Disable stroke closure: if no-close flag is set caps will be applied  * instead of joins * SWF_LINESTYLE_FLAG_NOCLOSE * * End-cap style: default round * SWF_LINESTYLE_FLAG_ENDCAP_ROUND * SWF_LINESTYLE_FLAG_ENDCAP_NONE * SWF_LINESTYLE_FLAG_ENDCAP_SQUARE * * If join style is SWF_LINESTYLE_JOIN_MITER a miter limit factor  * must be set. Miter max length is then calculated as: * max miter len = miter limit * width. * If join style is not miter, this value will be ignored. */SWFLineStyle newSWFLineStyle2_filled(unsigned short width, SWFFillStyle fill,                                      int flags, float miterLimit){	SWFLineStyle line;	if(fill == NULL)		return NULL;	line = (SWFLineStyle)malloc(sizeof(struct SWFLineStyle_s));	line->width = width;	line->flags = SWF_LINESTYLE_FLAG_FILL | flags;	line->miterLimit = miterLimit;	line->fill = fill;	return 0;}byte SWFLineStyle_equals(SWFLineStyle line, unsigned short width,			 byte r, byte g, byte b, byte a, int flags){//	if(line->width == 0 && width == 0)//		return TRUE;	if(line->width == width &&		 line->r == r &&		 line->g == g &&		 line->b == b &&		 line->a == a &&                 line->flags == flags)	{		return TRUE;	}	return FALSE;}byte SWFLineStyle_equals2filled(SWFLineStyle line, unsigned short width,                                SWFFillStyle fill, int flags){	if(line->width == width &&           line->flags == flags &&            SWFFillStyle_equals(line->fill, fill))	{		return TRUE;	}	return FALSE;}                               unsigned short SWFLineStyle_getWidth(SWFLineStyle line){	return line->width;}static inline void writeLineStyle1(SWFOutput out, SWFLineStyle line, int shapeType){	SWFOutput_writeUInt16(out, line->width);	SWFOutput_writeUInt8(out, line->r);	SWFOutput_writeUInt8(out, line->g);	SWFOutput_writeUInt8(out, line->b);	if(shapeType == SWF_DEFINESHAPE3)		SWFOutput_writeUInt8(out, line->a);}static inline void writeLineStyle2(SWFOutput out, SWFLineStyle line, SWFBlocktype shapeType){	SWFOutput_writeUInt16(out, line->width);	SWFOutput_writeUInt8(out, (line->flags >> 8));	SWFOutput_writeUInt8(out, line->flags);	if(line->flags & SWF_LINESTYLE_JOIN_MITER)		SWFOutput_writeFixed8(out, line->miterLimit);	if(line->flags & SWF_LINESTYLE_FLAG_FILL)		SWFOutput_writeFillStyle(out, line->fill, shapeType, NULL);	else	{		SWFOutput_writeUInt8(out, line->r);		SWFOutput_writeUInt8(out, line->g);		SWFOutput_writeUInt8(out, line->b);		SWFOutput_writeUInt8(out, line->a);	}}void SWFOutput_writeLineStyles(SWFOutput out,                               SWFLineStyle *lines, int nLines,                               SWFBlocktype shapeType){	SWFLineStyle line;	int i;		if(nLines<255)		SWFOutput_writeUInt8(out, nLines);	else	{		SWFOutput_writeUInt8(out, 255);		SWFOutput_writeUInt16(out, nLines);	}		for(i=0; i<nLines; ++i)	{		line = lines[i];		if(shapeType == SWF_DEFINESHAPE4)			writeLineStyle2(out, line, shapeType);		else			writeLineStyle1(out, line, shapeType);	}}void SWFOutput_writeMorphLineStyles2(SWFOutput out,		SWFLineStyle *lines1, int nLines1,		SWFLineStyle *lines2, int nLines2){	SWFLineStyle line1, line2;	int i;	SWF_assert(nLines1 == nLines2);	if(nLines1<255)		SWFOutput_writeUInt8(out, nLines1);	else	{		SWFOutput_writeUInt8(out, 255);		SWFOutput_writeUInt16(out, nLines1);	}	for(i=0; i<nLines1; ++i)	{		line1 = lines1[i];		line2 = lines2[i];		SWFOutput_writeUInt16(out, line1->width);		SWFOutput_writeUInt16(out, line2->width);				if(line1->flags != line2->flags)			SWF_warnOnce("Morph: shapes _must_ us equal line flags\n");		SWFOutput_writeUInt8(out, (line1->flags >> 8));		SWFOutput_writeUInt8(out, line1->flags);		if(line1->flags & SWF_LINESTYLE_JOIN_MITER)			SWFOutput_writeFixed8(out, line1->miterLimit);		if(line1->flags & SWF_LINESTYLE_FLAG_FILL)			SWFOutput_writeMorphFillStyle(out, line1->fill, NULL, line2->fill, NULL);		else		{				SWFOutput_writeUInt8(out, line1->r);			SWFOutput_writeUInt8(out, line1->g);			SWFOutput_writeUInt8(out, line1->b);			SWFOutput_writeUInt8(out, line1->a);			SWFOutput_writeUInt8(out, line2->r);			SWFOutput_writeUInt8(out, line2->g);			SWFOutput_writeUInt8(out, line2->b);			SWFOutput_writeUInt8(out, line2->a);		}	}}void SWFOutput_writeMorphLineStyles(SWFOutput out,						SWFLineStyle *lines1, int nLines1,						SWFLineStyle *lines2, int nLines2){	SWFLineStyle line1, line2;	int i;	SWF_assert(nLines1 == nLines2);	if(nLines1<255)		SWFOutput_writeUInt8(out, nLines1);	else	{		SWFOutput_writeUInt8(out, 255);		SWFOutput_writeUInt16(out, nLines1);	}	for(i=0; i<nLines1; ++i)	{		line1 = lines1[i];		line2 = lines2[i];		SWFOutput_writeUInt16(out, line1->width);		SWFOutput_writeUInt16(out, line2->width);		SWFOutput_writeUInt8(out, line1->r);		SWFOutput_writeUInt8(out, line1->g);		SWFOutput_writeUInt8(out, line1->b);		SWFOutput_writeUInt8(out, line1->a);		SWFOutput_writeUInt8(out, line2->r);		SWFOutput_writeUInt8(out, line2->g);		SWFOutput_writeUInt8(out, line2->b);		SWFOutput_writeUInt8(out, line2->a);	}}/* * Local variables: * tab-width: 2 * c-basic-offset: 2 * End: */