Tk Source Code

Changes On Branch tip-507
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Changes In Branch tip-507 Excluding Merge-Ins

This is equivalent to a diff from 3fadeb90 to eee5e9fb

2019-04-14
15:31
Implement TIP 507 check-in: 40ae80f8 user: dkf tags: trunk
2019-04-12
21:42
Repair the test suite (the svgnano format was renamed svg, and -x/-y options were removed from the implementation. Closed-Leaf check-in: eee5e9fb user: fvogel tags: tip-507
2018-12-04
21:12
Fix rendering of photo.n a bit check-in: d4dc5e10 user: fvogel tags: tip-507
2018-08-21
19:06
Fix [66db98f30d] regarding error messages spit by messageboxes in the test suite, while still not regress as described in [98dce84781] (yes and no answers were swapped) check-in: 854a060c user: fvogel tags: trunk
2018-08-19
14:14
merge trunk check-in: fc67d206 user: fvogel tags: tip-507
14:12
merge trunk check-in: d222f03a user: fvogel tags: tip-510
13:49
merge trunk (leaving out any changes in generic/tkText* however) check-in: 06b9d56a user: fvogel tags: revised_text, tip-466
2018-08-18
21:17
Fix bug [c2c5bdb4aa]: segfault when opening colorpicker check-in: 3fadeb90 user: culler tags: trunk
21:15
Fix bug [c2c5bdb4aa]: segfault when opening colorpicker check-in: 6f994d29 user: culler tags: core-8-6-branch
2018-08-15
16:22
Fix [98dce84781]: yesno messageBoxes on macOS return wrong values check-in: b2160d49 user: fvogel tags: trunk

Changes to doc/photo.n.

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\fBpng \-alpha\fI alphaValue\fR
.
The option has effect when reading image data from a file. Specifies
an additional alpha filtering for the overall image, which allows the
background on which the image is displayed to show through.  This
usually also has the effect of desaturating the image.  The
\fIalphaValue\fR must be between 0.0 and 1.0.





















































.VE 8.6
.VS 8.7
.SH "COLOR FORMATS"
.PP
The default image handler can represent/parse color and alpha values
of a pixel in one of the formats listed below. If a color format does
not contain transparency information, full opacity is assumed.  The






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\fBpng \-alpha\fI alphaValue\fR
.
The option has effect when reading image data from a file. Specifies
an additional alpha filtering for the overall image, which allows the
background on which the image is displayed to show through.  This
usually also has the effect of desaturating the image.  The
\fIalphaValue\fR must be between 0.0 and 1.0.
.TP
\fBsvg \-dpi\fI dpiValue\fB \-scale\fI scaleValue\fB \-unit\fI unitValue\fR
.
\fIdpiValue\fR is used in conversion between given coordinates and
screen resolution. The value must be greater than 0 and the default
value is 96.
\fIscaleValue\fR is used to scale the resulting image. The value must
be greater than 0 and the default value is 1.
\fIunitValue\fR is the unit of all coordinates in the SVG data.
Available units are px (default, coordinates in pixel), pt (1/72 inch),
pc (12 pt), mm , cm and in.
The svg format supports a wide range of SVG features, but the
full SVG standard is not available, for instance the 'text' feature
is missing and silently ignores when reading the SVG data.
The supported SVG features are:
.
.RS
\fB elements:\fR g, path, rect, circle, ellipse, line, polyline, polygon,
linearGradient, radialGradient, stop, defs, svg, style
.PP
\fB attributes:\fR width, height, viewBox,
preserveAspectRatio with none, xMin, xMid, xMax, yMin, yMid, yMax, slice
.PP
\fB gradient attributes:\fR gradientUnits with objectBoundingBox,
gradientTransform, cx, cy, r fx, fy x1, y1, x2, y2
spreadMethod with pad, reflect or repeat,
xlink:href
.PP
\fB poly attributes: \fR points
.PP
\fB line attributes: \fR x1, y1, x2, y2
.PP
\fB ellipse attributes: \fR cx, cy, rx, ry
.PP
\fB circle attributes: \fR cx, cy, r
.PP
\fB rectangle attributes: \fR x, y, width, height, rx, ry
.PP
\fB path attributes: \fR d with m, M, l, L, h, H, v, V, c, C, s, S, q, Q, t, T, a, A, z, Z
.PP
\fB style attributes: \fR display with none, visibility, hidden, visible,
fill with nonzero and evenodd, opacity, fill-opacity,
stroke, stroke-width, stroke-dasharray, stroke-dashoffset, stroke-opacity,
stroke-linecap with butt, round and square,
stroke-linejoin with miter, round and  bevel, stroke-miterlimit
fill-rule, font-size,
transform with matrix, translate, scale, rotate, skewX and  skewY,
stop-color, stop-opacity, offset, id, class
.RE
.
Currently only SVG images reading and conversion into (pixel-based
format) photos is supported: Tk does not (yet) support bundling photo
images in SVG vector graphics.
.VE 8.6
.VS 8.7
.SH "COLOR FORMATS"
.PP
The default image handler can represent/parse color and alpha values
of a pixel in one of the formats listed below. If a color format does
not contain transparency information, full opacity is assumed.  The

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/*
 * Copyright (c) 2013-14 Mikko Mononen [email protected]
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 *
 * The SVG parser is based on Anti-Grain Geometry 2.4 SVG example
 * Copyright (C) 2002-2004 Maxim Shemanarev (McSeem) (http://www.antigrain.com/)
 *
 * Arc calculation code based on canvg (https://code.google.com/p/canvg/)
 *
 * Bounding box calculation based on http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html
 *
 */

#ifndef NANOSVG_H
#define NANOSVG_H

#ifdef __cplusplus
extern "C" {
#endif

// NanoSVG is a simple stupid single-header-file SVG parse. The output of the parser is a list of cubic bezier shapes.
//
// The library suits well for anything from rendering scalable icons in your editor application to prototyping a game.
//
// NanoSVG supports a wide range of SVG features, but something may be missing, feel free to create a pull request!
//
// The shapes in the SVG images are transformed by the viewBox and converted to specified units.
// That is, you should get the same looking data as your designed in your favorite app.
//
// NanoSVG can return the paths in few different units. For example if you want to render an image, you may choose
// to get the paths in pixels, or if you are feeding the data into a CNC-cutter, you may want to use millimeters.
//
// The units passed to NanoVG should be one of: 'px', 'pt', 'pc' 'mm', 'cm', or 'in'.
// DPI (dots-per-inch) controls how the unit conversion is done.
//
// If you don't know or care about the units stuff, "px" and 96 should get you going.


/* Example Usage:
	// Load
	NSVGImage* image;
	image = nsvgParseFromFile("test.svg", "px", 96);
	printf("size: %f x %f\n", image->width, image->height);
	// Use...
	for (NSVGshape *shape = image->shapes; shape != NULL; shape = shape->next) {
		for (NSVGpath *path = shape->paths; path != NULL; path = path->next) {
			for (int i = 0; i < path->npts-1; i += 3) {
				float* p = &path->pts[i*2];
				drawCubicBez(p[0],p[1], p[2],p[3], p[4],p[5], p[6],p[7]);
			}
		}
	}
	// Delete
	nsvgDelete(image);
*/

#ifndef NANOSVG_SCOPE
#define NANOSVG_SCOPE
#endif

#ifndef NANOSVG_malloc
#define NANOSVG_malloc malloc
#endif

#ifndef NANOSVG_realloc
#define NANOSVG_realloc realloc
#endif

#ifndef NANOSVG_free
#define NANOSVG_free free
#endif

// float emulation for MS VC6++ compiler
#if (_MSC_VER == 1200)
#define tanf(a) (float)tan(a)
#define cosf(a) (float)cos(a)
#define sinf(a) (float)sin(a)
#define sqrtf(a) (float)sqrt(a)
#define fabsf(a) (float)abs(a)
#define acosf(a) (float)acos(a)
#define atan2f(a,b) (float)atan2(a,b)
#define ceilf(a) (float)ceil(a)
#define fmodf(a,b) (float)fmod(a,b)
#define floorf(a) (float)floor(a)
#endif

enum NSVGpaintType {
	NSVG_PAINT_NONE = 0,
	NSVG_PAINT_COLOR = 1,
	NSVG_PAINT_LINEAR_GRADIENT = 2,
	NSVG_PAINT_RADIAL_GRADIENT = 3
};

enum NSVGspreadType {
	NSVG_SPREAD_PAD = 0,
	NSVG_SPREAD_REFLECT = 1,
	NSVG_SPREAD_REPEAT = 2
};

enum NSVGlineJoin {
	NSVG_JOIN_MITER = 0,
	NSVG_JOIN_ROUND = 1,
	NSVG_JOIN_BEVEL = 2
};

enum NSVGlineCap {
	NSVG_CAP_BUTT = 0,
	NSVG_CAP_ROUND = 1,
	NSVG_CAP_SQUARE = 2
};

enum NSVGfillRule {
	NSVG_FILLRULE_NONZERO = 0,
	NSVG_FILLRULE_EVENODD = 1
};

enum NSVGflags {
	NSVG_FLAGS_VISIBLE = 0x01
};

typedef struct NSVGgradientStop {
	unsigned int color;
	float offset;
} NSVGgradientStop;

typedef struct NSVGgradient {
	float xform[6];
	char spread;
	float fx, fy;
	int nstops;
	NSVGgradientStop stops[1];
} NSVGgradient;

typedef struct NSVGpaint {
	char type;
	union {
		unsigned int color;
		NSVGgradient* gradient;
	};
} NSVGpaint;

typedef struct NSVGpath
{
	float* pts;					// Cubic bezier points: x0,y0, [cpx1,cpx1,cpx2,cpy2,x1,y1], ...
	int npts;					// Total number of bezier points.
	char closed;				// Flag indicating if shapes should be treated as closed.
	float bounds[4];			// Tight bounding box of the shape [minx,miny,maxx,maxy].
	struct NSVGpath* next;		// Pointer to next path, or NULL if last element.
} NSVGpath;

typedef struct NSVGshape
{
	char id[64];				// Optional 'id' attr of the shape or its group
	NSVGpaint fill;				// Fill paint
	NSVGpaint stroke;			// Stroke paint
	float opacity;				// Opacity of the shape.
	float strokeWidth;			// Stroke width (scaled).
	float strokeDashOffset;		// Stroke dash offset (scaled).
	float strokeDashArray[8];			// Stroke dash array (scaled).
	char strokeDashCount;				// Number of dash values in dash array.
	char strokeLineJoin;		// Stroke join type.
	char strokeLineCap;			// Stroke cap type.
	float miterLimit;			// Miter limit
	char fillRule;				// Fill rule, see NSVGfillRule.
	unsigned char flags;		// Logical or of NSVG_FLAGS_* flags
	float bounds[4];			// Tight bounding box of the shape [minx,miny,maxx,maxy].
	NSVGpath* paths;			// Linked list of paths in the image.
	struct NSVGshape* next;		// Pointer to next shape, or NULL if last element.
} NSVGshape;

typedef struct NSVGimage
{
	float width;				// Width of the image.
	float height;				// Height of the image.
	NSVGshape* shapes;			// Linked list of shapes in the image.
} NSVGimage;

// Parses SVG file from a file, returns SVG image as paths.
NANOSVG_SCOPE NSVGimage* nsvgParseFromFile(const char* filename, const char* units, float dpi);

// Parses SVG file from a null terminated string, returns SVG image as paths.
// Important note: changes the string.
NANOSVG_SCOPE NSVGimage* nsvgParse(char* input, const char* units, float dpi);

// Deletes list of paths.
NANOSVG_SCOPE void nsvgDelete(NSVGimage* image);

#ifdef __cplusplus
}
#endif

#endif // NANOSVG_H

#ifdef NANOSVG_IMPLEMENTATION

#include <string.h>
#include <stdlib.h>
#include <math.h>

#define NSVG_PI (3.14159265358979323846264338327f)
#define NSVG_KAPPA90 (0.5522847493f)	// Length proportional to radius of a cubic bezier handle for 90deg arcs.

#define NSVG_ALIGN_MIN 0
#define NSVG_ALIGN_MID 1
#define NSVG_ALIGN_MAX 2
#define NSVG_ALIGN_NONE 0
#define NSVG_ALIGN_MEET 1
#define NSVG_ALIGN_SLICE 2

#define NSVG_NOTUSED(v) do { (void)(1 ? (void)0 : ( (void)(v) ) ); } while(0)
#define NSVG_RGB(r, g, b) (((unsigned int)r) | ((unsigned int)g << 8) | ((unsigned int)b << 16))

#ifdef _MSC_VER
	#pragma warning (disable: 4996) // Switch off security warnings
	#pragma warning (disable: 4100) // Switch off unreferenced formal parameter warnings
	#ifdef __cplusplus
	#define NSVG_INLINE inline
	#else
	#define NSVG_INLINE
	#endif
	#if !defined(strtoll)           // old MSVC versions do not have strtoll()
		#define strtoll _strtoi64
	#endif
#else
	#define NSVG_INLINE inline
#endif


static int nsvg__isspace(char c)
{
	return strchr(" \t\n\v\f\r", c) != 0;
}

static int nsvg__isdigit(char c)
{
	return c >= '0' && c <= '9';
}

static int nsvg__isnum(char c)
{
	return strchr("0123456789+-.eE", c) != 0;
}

static NSVG_INLINE float nsvg__minf(float a, float b) { return a < b ? a : b; }
static NSVG_INLINE float nsvg__maxf(float a, float b) { return a > b ? a : b; }


// Simple XML parser

#define NSVG_XML_TAG 1
#define NSVG_XML_CONTENT 2
#define NSVG_XML_MAX_ATTRIBS 256

static void nsvg__parseContent(char* s,
							   void (*contentCb)(void* ud, const char* s),
							   void* ud)
{
	// Trim start white spaces
	while (*s && nsvg__isspace(*s)) s++;
	if (!*s) return;

	if (contentCb)
		(*contentCb)(ud, s);
}

static void nsvg__parseElement(char* s,
							   void (*startelCb)(void* ud, const char* el, const char** attr),
							   void (*endelCb)(void* ud, const char* el),
							   void* ud)
{
	const char* attr[NSVG_XML_MAX_ATTRIBS];
	int nattr = 0;
	char* name;
	int start = 0;
	int end = 0;
	char quote;

	// Skip white space after the '<'
	while (*s && nsvg__isspace(*s)) s++;

	// Check if the tag is end tag
	if (*s == '/') {
		s++;
		end = 1;
	} else {
		start = 1;
	}

	// Skip comments, data and preprocessor stuff.
	if (!*s || *s == '?' || *s == '!')
		return;

	// Get tag name
	name = s;
	while (*s && !nsvg__isspace(*s)) s++;
	if (*s) { *s++ = '\0'; }

	// Get attribs
	while (!end && *s && nattr < NSVG_XML_MAX_ATTRIBS-3) {
		char* name = NULL;
		char* value = NULL;

		// Skip white space before the attrib name
		while (*s && nsvg__isspace(*s)) s++;
		if (!*s) break;
		if (*s == '/') {
			end = 1;
			break;
		}
		name = s;
		// Find end of the attrib name.
		while (*s && !nsvg__isspace(*s) && *s != '=') s++;
		if (*s) { *s++ = '\0'; }
		// Skip until the beginning of the value.
		while (*s && *s != '\"' && *s != '\'') s++;
		if (!*s) break;
		quote = *s;
		s++;
		// Store value and find the end of it.
		value = s;
		while (*s && *s != quote) s++;
		if (*s) { *s++ = '\0'; }

		// Store only well formed attributes
		if (name && value) {
			attr[nattr++] = name;
			attr[nattr++] = value;
		}
	}

	// List terminator
	attr[nattr++] = 0;
	attr[nattr++] = 0;

	// Call callbacks.
	if (start && startelCb)
		(*startelCb)(ud, name, attr);
	if (end && endelCb)
		(*endelCb)(ud, name);
}

NANOSVG_SCOPE
int nsvg__parseXML(char* input,
				   void (*startelCb)(void* ud, const char* el, const char** attr),
				   void (*endelCb)(void* ud, const char* el),
				   void (*contentCb)(void* ud, const char* s),
				   void* ud)
{
	char* s = input;
	char* mark = s;
	int state = NSVG_XML_CONTENT;
	while (*s) {
		if (*s == '<' && state == NSVG_XML_CONTENT) {
			// Start of a tag
			*s++ = '\0';
			nsvg__parseContent(mark, contentCb, ud);
			mark = s;
			state = NSVG_XML_TAG;
		} else if (*s == '>' && state == NSVG_XML_TAG) {
			// Start of a content or new tag.
			*s++ = '\0';
			nsvg__parseContent(mark, contentCb, ud);
			nsvg__parseElement(mark, startelCb, endelCb, ud);
			mark = s;
			state = NSVG_XML_CONTENT;
		} else {
			s++;
		}
	}

	return 1;
}


/* Simple SVG parser. */

#define NSVG_MAX_ATTR 128

enum NSVGgradientUnits {
	NSVG_USER_SPACE = 0,
	NSVG_OBJECT_SPACE = 1
};

#define NSVG_MAX_DASHES 8

enum NSVGunits {
	NSVG_UNITS_USER,
	NSVG_UNITS_PX,
	NSVG_UNITS_PT,
	NSVG_UNITS_PC,
	NSVG_UNITS_MM,
	NSVG_UNITS_CM,
	NSVG_UNITS_IN,
	NSVG_UNITS_PERCENT,
	NSVG_UNITS_EM,
	NSVG_UNITS_EX
};

enum NSVGvisible {
	NSVG_VIS_DISPLAY = 1,
	NSVG_VIS_VISIBLE = 2
};

typedef struct NSVGcoordinate {
	float value;
	int units;
} NSVGcoordinate;

typedef struct NSVGlinearData {
	NSVGcoordinate x1, y1, x2, y2;
} NSVGlinearData;

typedef struct NSVGradialData {
	NSVGcoordinate cx, cy, r, fx, fy;
} NSVGradialData;

typedef struct NSVGgradientData
{
	char id[64];
	char ref[64];
	char type;
	union {
		NSVGlinearData linear;
		NSVGradialData radial;
	};
	char spread;
	char units;
	float xform[6];
	int nstops;
	NSVGgradientStop* stops;
	struct NSVGgradientData* next;
} NSVGgradientData;

typedef struct NSVGattrib
{
	char id[64];
	float xform[6];
	unsigned int fillColor;
	unsigned int strokeColor;
	float opacity;
	float fillOpacity;
	float strokeOpacity;
	char fillGradient[64];
	char strokeGradient[64];
	float strokeWidth;
	float strokeDashOffset;
	float strokeDashArray[NSVG_MAX_DASHES];
	int strokeDashCount;
	char strokeLineJoin;
	char strokeLineCap;
	float miterLimit;
	char fillRule;
	float fontSize;
	unsigned int stopColor;
	float stopOpacity;
	float stopOffset;
	char hasFill;
	char hasStroke;
	char visible;
} NSVGattrib;

typedef struct NSVGstyles
{
	char*	name;
	char* description;
	struct NSVGstyles* next;
} NSVGstyles;

typedef struct NSVGparser
{
	NSVGattrib attr[NSVG_MAX_ATTR];
	int attrHead;
	float* pts;
	int npts;
	int cpts;
	NSVGpath* plist;
	NSVGimage* image;
	NSVGstyles* styles;
	NSVGgradientData* gradients;
	NSVGshape* shapesTail;
	float viewMinx, viewMiny, viewWidth, viewHeight;
	int alignX, alignY, alignType;
	float dpi;
	char pathFlag;
	char defsFlag;
	char styleFlag;
} NSVGparser;

static void nsvg__xformIdentity(float* t)
{
	t[0] = 1.0f; t[1] = 0.0f;
	t[2] = 0.0f; t[3] = 1.0f;
	t[4] = 0.0f; t[5] = 0.0f;
}

static void nsvg__xformSetTranslation(float* t, float tx, float ty)
{
	t[0] = 1.0f; t[1] = 0.0f;
	t[2] = 0.0f; t[3] = 1.0f;
	t[4] = tx; t[5] = ty;
}

static void nsvg__xformSetScale(float* t, float sx, float sy)
{
	t[0] = sx; t[1] = 0.0f;
	t[2] = 0.0f; t[3] = sy;
	t[4] = 0.0f; t[5] = 0.0f;
}

static void nsvg__xformSetSkewX(float* t, float a)
{
	t[0] = 1.0f; t[1] = 0.0f;
	t[2] = tanf(a); t[3] = 1.0f;
	t[4] = 0.0f; t[5] = 0.0f;
}

static void nsvg__xformSetSkewY(float* t, float a)
{
	t[0] = 1.0f; t[1] = tanf(a);
	t[2] = 0.0f; t[3] = 1.0f;
	t[4] = 0.0f; t[5] = 0.0f;
}

static void nsvg__xformSetRotation(float* t, float a)
{
	float cs = cosf(a), sn = sinf(a);
	t[0] = cs; t[1] = sn;
	t[2] = -sn; t[3] = cs;
	t[4] = 0.0f; t[5] = 0.0f;
}

static void nsvg__xformMultiply(float* t, float* s)
{
	float t0 = t[0] * s[0] + t[1] * s[2];
	float t2 = t[2] * s[0] + t[3] * s[2];
	float t4 = t[4] * s[0] + t[5] * s[2] + s[4];
	t[1] = t[0] * s[1] + t[1] * s[3];
	t[3] = t[2] * s[1] + t[3] * s[3];
	t[5] = t[4] * s[1] + t[5] * s[3] + s[5];
	t[0] = t0;
	t[2] = t2;
	t[4] = t4;
}

static void nsvg__xformInverse(float* inv, float* t)
{
	double invdet, det = (double)t[0] * t[3] - (double)t[2] * t[1];
	if (det > -1e-6 && det < 1e-6) {
		nsvg__xformIdentity(t);
		return;
	}
	invdet = 1.0 / det;
	inv[0] = (float)(t[3] * invdet);
	inv[2] = (float)(-t[2] * invdet);
	inv[4] = (float)(((double)t[2] * t[5] - (double)t[3] * t[4]) * invdet);
	inv[1] = (float)(-t[1] * invdet);
	inv[3] = (float)(t[0] * invdet);
	inv[5] = (float)(((double)t[1] * t[4] - (double)t[0] * t[5]) * invdet);
}

static void nsvg__xformPremultiply(float* t, float* s)
{
	float s2[6];
	memcpy(s2, s, sizeof(float)*6);
	nsvg__xformMultiply(s2, t);
	memcpy(t, s2, sizeof(float)*6);
}

static void nsvg__xformPoint(float* dx, float* dy, float x, float y, float* t)
{
	*dx = x*t[0] + y*t[2] + t[4];
	*dy = x*t[1] + y*t[3] + t[5];
}

static void nsvg__xformVec(float* dx, float* dy, float x, float y, float* t)
{
	*dx = x*t[0] + y*t[2];
	*dy = x*t[1] + y*t[3];
}

#define NSVG_EPSILON (1e-12)

static int nsvg__ptInBounds(float* pt, float* bounds)
{
	return pt[0] >= bounds[0] && pt[0] <= bounds[2] && pt[1] >= bounds[1] && pt[1] <= bounds[3];
}


static double nsvg__evalBezier(double t, double p0, double p1, double p2, double p3)
{
	double it = 1.0-t;
	return it*it*it*p0 + 3.0*it*it*t*p1 + 3.0*it*t*t*p2 + t*t*t*p3;
}

static void nsvg__curveBounds(float* bounds, float* curve)
{
	int i, j, count;
	double roots[2], a, b, c, b2ac, t, v;
	float* v0 = &curve[0];
	float* v1 = &curve[2];
	float* v2 = &curve[4];
	float* v3 = &curve[6];

	// Start the bounding box by end points
	bounds[0] = nsvg__minf(v0[0], v3[0]);
	bounds[1] = nsvg__minf(v0[1], v3[1]);
	bounds[2] = nsvg__maxf(v0[0], v3[0]);
	bounds[3] = nsvg__maxf(v0[1], v3[1]);

	// Bezier curve fits inside the convex hull of it's control points.
	// If control points are inside the bounds, we're done.
	if (nsvg__ptInBounds(v1, bounds) && nsvg__ptInBounds(v2, bounds))
		return;

	// Add bezier curve inflection points in X and Y.
	for (i = 0; i < 2; i++) {
		a = -3.0 * v0[i] + 9.0 * v1[i] - 9.0 * v2[i] + 3.0 * v3[i];
		b = 6.0 * v0[i] - 12.0 * v1[i] + 6.0 * v2[i];
		c = 3.0 * v1[i] - 3.0 * v0[i];
		count = 0;
		if (fabs(a) < NSVG_EPSILON) {
			if (fabs(b) > NSVG_EPSILON) {
				t = -c / b;
				if (t > NSVG_EPSILON && t < 1.0-NSVG_EPSILON)
					roots[count++] = t;
			}
		} else {
			b2ac = b*b - 4.0*c*a;
			if (b2ac > NSVG_EPSILON) {
				t = (-b + sqrt(b2ac)) / (2.0 * a);
				if (t > NSVG_EPSILON && t < 1.0-NSVG_EPSILON)
					roots[count++] = t;
				t = (-b - sqrt(b2ac)) / (2.0 * a);
				if (t > NSVG_EPSILON && t < 1.0-NSVG_EPSILON)
					roots[count++] = t;
			}
		}
		for (j = 0; j < count; j++) {
			v = nsvg__evalBezier(roots[j], v0[i], v1[i], v2[i], v3[i]);
			bounds[0+i] = nsvg__minf(bounds[0+i], (float)v);
			bounds[2+i] = nsvg__maxf(bounds[2+i], (float)v);
		}
	}
}

static NSVGparser* nsvg__createParser()
{
	NSVGparser* p;
	p = (NSVGparser*)NANOSVG_malloc(sizeof(NSVGparser));
	if (p == NULL) goto error;
	memset(p, 0, sizeof(NSVGparser));

	p->image = (NSVGimage*)NANOSVG_malloc(sizeof(NSVGimage));
	if (p->image == NULL) goto error;
	memset(p->image, 0, sizeof(NSVGimage));

	// Init style
	nsvg__xformIdentity(p->attr[0].xform);
	memset(p->attr[0].id, 0, sizeof p->attr[0].id);
	p->attr[0].fillColor = NSVG_RGB(0,0,0);
	p->attr[0].strokeColor = NSVG_RGB(0,0,0);
	p->attr[0].opacity = 1;
	p->attr[0].fillOpacity = 1;
	p->attr[0].strokeOpacity = 1;
	p->attr[0].stopOpacity = 1;
	p->attr[0].strokeWidth = 1;
	p->attr[0].strokeLineJoin = NSVG_JOIN_MITER;
	p->attr[0].strokeLineCap = NSVG_CAP_BUTT;
	p->attr[0].miterLimit = 4;
	p->attr[0].fillRule = NSVG_FILLRULE_NONZERO;
	p->attr[0].hasFill = 1;
	p->attr[0].visible = NSVG_VIS_DISPLAY | NSVG_VIS_VISIBLE;

	return p;

error:
	if (p) {
		if (p->image) NANOSVG_free(p->image);
		NANOSVG_free(p);
	}
	return NULL;
}

static void nsvg__deleteStyles(NSVGstyles* style) {
	while (style) {
		NSVGstyles *next = style->next;
		if (style->name!= NULL)
			free(style->name);
		if (style->description != NULL)
			free(style->description);
		free(style);
		style = next;
	}
}

static void nsvg__deletePaths(NSVGpath* path)
{
	while (path) {
		NSVGpath *next = path->next;
		if (path->pts != NULL)
			NANOSVG_free(path->pts);
		NANOSVG_free(path);
		path = next;
	}
}

static void nsvg__deletePaint(NSVGpaint* paint)
{
	if (paint->type == NSVG_PAINT_LINEAR_GRADIENT || paint->type == NSVG_PAINT_RADIAL_GRADIENT)
		NANOSVG_free(paint->gradient);
}

static void nsvg__deleteGradientData(NSVGgradientData* grad)
{
	NSVGgradientData* next;
	while (grad != NULL) {
		next = grad->next;
		NANOSVG_free(grad->stops);
		NANOSVG_free(grad);
		grad = next;
	}
}

static void nsvg__deleteParser(NSVGparser* p)
{
	if (p != NULL) {
		nsvg__deleteStyles(p->styles);
		nsvg__deletePaths(p->plist);
		nsvg__deleteGradientData(p->gradients);
		nsvgDelete(p->image);
		NANOSVG_free(p->pts);
		NANOSVG_free(p);
	}
}

static void nsvg__resetPath(NSVGparser* p)
{
	p->npts = 0;
}

static void nsvg__addPoint(NSVGparser* p, float x, float y)
{
	if (p->npts+1 > p->cpts) {
		p->cpts = p->cpts ? p->cpts*2 : 8;
		p->pts = (float*)NANOSVG_realloc(p->pts, p->cpts*2*sizeof(float));
		if (!p->pts) return;
	}
	p->pts[p->npts*2+0] = x;
	p->pts[p->npts*2+1] = y;
	p->npts++;
}

static void nsvg__moveTo(NSVGparser* p, float x, float y)
{
	if (p->npts > 0) {
		p->pts[(p->npts-1)*2+0] = x;
		p->pts[(p->npts-1)*2+1] = y;
	} else {
		nsvg__addPoint(p, x, y);
	}
}

static void nsvg__lineTo(NSVGparser* p, float x, float y)
{
	float px,py, dx,dy;
	if (p->npts > 0) {
		px = p->pts[(p->npts-1)*2+0];
		py = p->pts[(p->npts-1)*2+1];
		dx = x - px;
		dy = y - py;
		nsvg__addPoint(p, px + dx/3.0f, py + dy/3.0f);
		nsvg__addPoint(p, x - dx/3.0f, y - dy/3.0f);
		nsvg__addPoint(p, x, y);
	}
}

static void nsvg__cubicBezTo(NSVGparser* p, float cpx1, float cpy1, float cpx2, float cpy2, float x, float y)
{
	nsvg__addPoint(p, cpx1, cpy1);
	nsvg__addPoint(p, cpx2, cpy2);
	nsvg__addPoint(p, x, y);
}

static NSVGattrib* nsvg__getAttr(NSVGparser* p)
{
	return &p->attr[p->attrHead];
}

static void nsvg__pushAttr(NSVGparser* p)
{
	if (p->attrHead < NSVG_MAX_ATTR-1) {
		p->attrHead++;
		memcpy(&p->attr[p->attrHead], &p->attr[p->attrHead-1], sizeof(NSVGattrib));
	}
}

static void nsvg__popAttr(NSVGparser* p)
{
	if (p->attrHead > 0)
		p->attrHead--;
}

static float nsvg__actualOrigX(NSVGparser* p)
{
	return p->viewMinx;
}

static float nsvg__actualOrigY(NSVGparser* p)
{
	return p->viewMiny;
}

static float nsvg__actualWidth(NSVGparser* p)
{
	return p->viewWidth;
}

static float nsvg__actualHeight(NSVGparser* p)
{
	return p->viewHeight;
}

static float nsvg__actualLength(NSVGparser* p)
{
	float w = nsvg__actualWidth(p), h = nsvg__actualHeight(p);
	return sqrtf(w*w + h*h) / sqrtf(2.0f);
}

static float nsvg__convertToPixels(NSVGparser* p, NSVGcoordinate c, float orig, float length)
{
	NSVGattrib* attr = nsvg__getAttr(p);
	switch (c.units) {
		case NSVG_UNITS_USER:		return c.value;
		case NSVG_UNITS_PX:			return c.value;
		case NSVG_UNITS_PT:			return c.value / 72.0f * p->dpi;
		case NSVG_UNITS_PC:			return c.value / 6.0f * p->dpi;
		case NSVG_UNITS_MM:			return c.value / 25.4f * p->dpi;
		case NSVG_UNITS_CM:			return c.value / 2.54f * p->dpi;
		case NSVG_UNITS_IN:			return c.value * p->dpi;
		case NSVG_UNITS_EM:			return c.value * attr->fontSize;
		case NSVG_UNITS_EX:			return c.value * attr->fontSize * 0.52f; // x-height of Helvetica.
		case NSVG_UNITS_PERCENT:	return orig + c.value / 100.0f * length;
		default:					return c.value;
	}
	return c.value;
}

static NSVGgradientData* nsvg__findGradientData(NSVGparser* p, const char* id)
{
	NSVGgradientData* grad = p->gradients;
	while (grad) {
		if (strcmp(grad->id, id) == 0)
			return grad;
		grad = grad->next;
	}
	return NULL;
}

static NSVGgradient* nsvg__createGradient(NSVGparser* p, const char* id, const float* localBounds, char* paintType)
{
	NSVGattrib* attr = nsvg__getAttr(p);
	NSVGgradientData* data = NULL;
	NSVGgradientData* ref = NULL;
	NSVGgradientStop* stops = NULL;
	NSVGgradient* grad;
	float ox, oy, sw, sh, sl;
	int nstops = 0;

	data = nsvg__findGradientData(p, id);
	if (data == NULL) return NULL;

	// TODO: use ref to fill in all unset values too.
	ref = data;
	while (ref != NULL) {
		if (stops == NULL && ref->stops != NULL) {
			stops = ref->stops;
			nstops = ref->nstops;
			break;
		}
		ref = nsvg__findGradientData(p, ref->ref);
	}
	if (stops == NULL) return NULL;

	grad = (NSVGgradient*)NANOSVG_malloc(sizeof(NSVGgradient) + sizeof(NSVGgradientStop)*(nstops-1));
	if (grad == NULL) return NULL;

	// The shape width and height.
	if (data->units == NSVG_OBJECT_SPACE) {
		ox = localBounds[0];
		oy = localBounds[1];
		sw = localBounds[2] - localBounds[0];
		sh = localBounds[3] - localBounds[1];
	} else {
		ox = nsvg__actualOrigX(p);
		oy = nsvg__actualOrigY(p);
		sw = nsvg__actualWidth(p);
		sh = nsvg__actualHeight(p);
	}
	sl = sqrtf(sw*sw + sh*sh) / sqrtf(2.0f);

	if (data->type == NSVG_PAINT_LINEAR_GRADIENT) {
		float x1, y1, x2, y2, dx, dy;
		x1 = nsvg__convertToPixels(p, data->linear.x1, ox, sw);
		y1 = nsvg__convertToPixels(p, data->linear.y1, oy, sh);
		x2 = nsvg__convertToPixels(p, data->linear.x2, ox, sw);
		y2 = nsvg__convertToPixels(p, data->linear.y2, oy, sh);
		// Calculate transform aligned to the line
		dx = x2 - x1;
		dy = y2 - y1;
		grad->xform[0] = dy; grad->xform[1] = -dx;
		grad->xform[2] = dx; grad->xform[3] = dy;
		grad->xform[4] = x1; grad->xform[5] = y1;
	} else {
		float cx, cy, fx, fy, r;
		cx = nsvg__convertToPixels(p, data->radial.cx, ox, sw);
		cy = nsvg__convertToPixels(p, data->radial.cy, oy, sh);
		fx = nsvg__convertToPixels(p, data->radial.fx, ox, sw);
		fy = nsvg__convertToPixels(p, data->radial.fy, oy, sh);
		r = nsvg__convertToPixels(p, data->radial.r, 0, sl);
		// Calculate transform aligned to the circle
		grad->xform[0] = r; grad->xform[1] = 0;
		grad->xform[2] = 0; grad->xform[3] = r;
		grad->xform[4] = cx; grad->xform[5] = cy;
		grad->fx = fx / r;
		grad->fy = fy / r;
	}

	nsvg__xformMultiply(grad->xform, data->xform);
	nsvg__xformMultiply(grad->xform, attr->xform);

	grad->spread = data->spread;
	memcpy(grad->stops, stops, nstops*sizeof(NSVGgradientStop));
	grad->nstops = nstops;

	*paintType = data->type;

	return grad;
}

static float nsvg__getAverageScale(float* t)
{
	float sx = sqrtf(t[0]*t[0] + t[2]*t[2]);
	float sy = sqrtf(t[1]*t[1] + t[3]*t[3]);
	return (sx + sy) * 0.5f;
}

static void nsvg__getLocalBounds(float* bounds, NSVGshape *shape, float* xform)
{
	NSVGpath* path;
	float curve[4*2], curveBounds[4];
	int i, first = 1;
	for (path = shape->paths; path != NULL; path = path->next) {
		nsvg__xformPoint(&curve[0], &curve[1], path->pts[0], path->pts[1], xform);
		for (i = 0; i < path->npts-1; i += 3) {
			nsvg__xformPoint(&curve[2], &curve[3], path->pts[(i+1)*2], path->pts[(i+1)*2+1], xform);
			nsvg__xformPoint(&curve[4], &curve[5], path->pts[(i+2)*2], path->pts[(i+2)*2+1], xform);
			nsvg__xformPoint(&curve[6], &curve[7], path->pts[(i+3)*2], path->pts[(i+3)*2+1], xform);
			nsvg__curveBounds(curveBounds, curve);
			if (first) {
				bounds[0] = curveBounds[0];
				bounds[1] = curveBounds[1];
				bounds[2] = curveBounds[2];
				bounds[3] = curveBounds[3];
				first = 0;
			} else {
				bounds[0] = nsvg__minf(bounds[0], curveBounds[0]);
				bounds[1] = nsvg__minf(bounds[1], curveBounds[1]);
				bounds[2] = nsvg__maxf(bounds[2], curveBounds[2]);
				bounds[3] = nsvg__maxf(bounds[3], curveBounds[3]);
			}
			curve[0] = curve[6];
			curve[1] = curve[7];
		}
	}
}

static void nsvg__addShape(NSVGparser* p)
{
	NSVGattrib* attr = nsvg__getAttr(p);
	float scale = 1.0f;
	NSVGshape* shape;
	NSVGpath* path;
	int i;

	if (p->plist == NULL)
		return;

	shape = (NSVGshape*)NANOSVG_malloc(sizeof(NSVGshape));
	if (shape == NULL) goto error;
	memset(shape, 0, sizeof(NSVGshape));

	memcpy(shape->id, attr->id, sizeof shape->id);
	scale = nsvg__getAverageScale(attr->xform);
	shape->strokeWidth = attr->strokeWidth * scale;
	shape->strokeDashOffset = attr->strokeDashOffset * scale;
	shape->strokeDashCount = (char)attr->strokeDashCount;
	for (i = 0; i < attr->strokeDashCount; i++)
		shape->strokeDashArray[i] = attr->strokeDashArray[i] * scale;
	shape->strokeLineJoin = attr->strokeLineJoin;
	shape->strokeLineCap = attr->strokeLineCap;
	shape->miterLimit = attr->miterLimit;
	shape->fillRule = attr->fillRule;
	shape->opacity = attr->opacity;

	shape->paths = p->plist;
	p->plist = NULL;

	// Calculate shape bounds
	shape->bounds[0] = shape->paths->bounds[0];
	shape->bounds[1] = shape->paths->bounds[1];
	shape->bounds[2] = shape->paths->bounds[2];
	shape->bounds[3] = shape->paths->bounds[3];
	for (path = shape->paths->next; path != NULL; path = path->next) {
		shape->bounds[0] = nsvg__minf(shape->bounds[0], path->bounds[0]);
		shape->bounds[1] = nsvg__minf(shape->bounds[1], path->bounds[1]);
		shape->bounds[2] = nsvg__maxf(shape->bounds[2], path->bounds[2]);
		shape->bounds[3] = nsvg__maxf(shape->bounds[3], path->bounds[3]);
	}

	// Set fill
	if (attr->hasFill == 0) {
		shape->fill.type = NSVG_PAINT_NONE;
	} else if (attr->hasFill == 1) {
		shape->fill.type = NSVG_PAINT_COLOR;
		shape->fill.color = attr->fillColor;
		shape->fill.color |= (unsigned int)(attr->fillOpacity*255) << 24;
	} else if (attr->hasFill == 2) {
		float inv[6], localBounds[4];
		nsvg__xformInverse(inv, attr->xform);
		nsvg__getLocalBounds(localBounds, shape, inv);
		shape->fill.gradient = nsvg__createGradient(p, attr->fillGradient, localBounds, &shape->fill.type);
		if (shape->fill.gradient == NULL) {
			shape->fill.type = NSVG_PAINT_NONE;
		}
	}

	// Set stroke
	if (attr->hasStroke == 0) {
		shape->stroke.type = NSVG_PAINT_NONE;
	} else if (attr->hasStroke == 1) {
		shape->stroke.type = NSVG_PAINT_COLOR;
		shape->stroke.color = attr->strokeColor;
		shape->stroke.color |= (unsigned int)(attr->strokeOpacity*255) << 24;
	} else if (attr->hasStroke == 2) {
		float inv[6], localBounds[4];
		nsvg__xformInverse(inv, attr->xform);
		nsvg__getLocalBounds(localBounds, shape, inv);
		shape->stroke.gradient = nsvg__createGradient(p, attr->strokeGradient, localBounds, &shape->stroke.type);
		if (shape->stroke.gradient == NULL)
			shape->stroke.type = NSVG_PAINT_NONE;
	}

	// Set flags
	shape->flags = ((attr->visible & NSVG_VIS_DISPLAY) && (attr->visible & NSVG_VIS_VISIBLE) ? NSVG_FLAGS_VISIBLE : 0x00);

	// Add to tail
	if (p->image->shapes == NULL)
		p->image->shapes = shape;
	else
		p->shapesTail->next = shape;
	p->shapesTail = shape;

	return;

error:
	if (shape) NANOSVG_free(shape);
}

static void nsvg__addPath(NSVGparser* p, char closed)
{
	NSVGattrib* attr = nsvg__getAttr(p);
	NSVGpath* path = NULL;
	float bounds[4];
	float* curve;
	int i;

	if (p->npts < 4)
		return;

	if (closed)
		nsvg__lineTo(p, p->pts[0], p->pts[1]);

	path = (NSVGpath*)NANOSVG_malloc(sizeof(NSVGpath));
	if (path == NULL) goto error;
	memset(path, 0, sizeof(NSVGpath));

	path->pts = (float*)NANOSVG_malloc(p->npts*2*sizeof(float));
	if (path->pts == NULL) goto error;
	path->closed = closed;
	path->npts = p->npts;

	// Transform path.
	for (i = 0; i < p->npts; ++i)
		nsvg__xformPoint(&path->pts[i*2], &path->pts[i*2+1], p->pts[i*2], p->pts[i*2+1], attr->xform);

	// Find bounds
	for (i = 0; i < path->npts-1; i += 3) {
		curve = &path->pts[i*2];
		nsvg__curveBounds(bounds, curve);
		if (i == 0) {
			path->bounds[0] = bounds[0];
			path->bounds[1] = bounds[1];
			path->bounds[2] = bounds[2];
			path->bounds[3] = bounds[3];
		} else {
			path->bounds[0] = nsvg__minf(path->bounds[0], bounds[0]);
			path->bounds[1] = nsvg__minf(path->bounds[1], bounds[1]);
			path->bounds[2] = nsvg__maxf(path->bounds[2], bounds[2]);
			path->bounds[3] = nsvg__maxf(path->bounds[3], bounds[3]);
		}
	}

	path->next = p->plist;
	p->plist = path;

	return;

error:
	if (path != NULL) {
		if (path->pts != NULL) NANOSVG_free(path->pts);
		NANOSVG_free(path);
	}
}

// We roll our own string to float because the std library one uses locale and messes things up.
static double nsvg__atof(const char* s)
{
	char* cur = (char*)s;
	char* end = NULL;
	double res = 0.0, sign = 1.0;
#if (_MSC_VER == 1200)
	__int64 intPart = 0, fracPart = 0;
#else
	long long intPart = 0, fracPart = 0;
#endif
	char hasIntPart = 0, hasFracPart = 0;

	// Parse optional sign
	if (*cur == '+') {
		cur++;
	} else if (*cur == '-') {
		sign = -1;
		cur++;
	}

	// Parse integer part
	if (nsvg__isdigit(*cur)) {
		// Parse digit sequence
#if (_MSC_VER == 1200)
		intPart = strtol(cur, &end, 10);
#else
		intPart = strtoll(cur, &end, 10);
#endif
		if (cur != end) {
			res = (double)intPart;
			hasIntPart = 1;
			cur = end;
		}
	}

	// Parse fractional part.
	if (*cur == '.') {
		cur++; // Skip '.'
		if (nsvg__isdigit(*cur)) {
			// Parse digit sequence
#if (_MSC_VER == 1200)
			fracPart = strtol(cur, &end, 10);
#else
			fracPart = strtoll(cur, &end, 10);
#endif
			if (cur != end) {
				res += (double)fracPart / pow(10.0, (double)(end - cur));
				hasFracPart = 1;
				cur = end;
			}
		}
	}

	// A valid number should have integer or fractional part.
	if (!hasIntPart && !hasFracPart)
		return 0.0;

	// Parse optional exponent
	if (*cur == 'e' || *cur == 'E') {
		int expPart = 0;
		cur++; // skip 'E'
		expPart = strtol(cur, &end, 10); // Parse digit sequence with sign
		if (cur != end) {
			res *= pow(10.0, (double)expPart);
		}
	}

	return res * sign;
}


static const char* nsvg__parseNumber(const char* s, char* it, const int size)
{
	const int last = size-1;
	int i = 0;

	// sign
	if (*s == '-' || *s == '+') {
		if (i < last) it[i++] = *s;
		s++;
	}
	// integer part
	while (*s && nsvg__isdigit(*s)) {
		if (i < last) it[i++] = *s;
		s++;
	}
	if (*s == '.') {
		// decimal point
		if (i < last) it[i++] = *s;
		s++;
		// fraction part
		while (*s && nsvg__isdigit(*s)) {
			if (i < last) it[i++] = *s;
			s++;
		}
	}
	// exponent
	if (*s == 'e' || *s == 'E') {
		if (i < last) it[i++] = *s;
		s++;
		if (*s == '-' || *s == '+') {
			if (i < last) it[i++] = *s;
			s++;
		}
		while (*s && nsvg__isdigit(*s)) {
			if (i < last) it[i++] = *s;
			s++;
		}
	}
	it[i] = '\0';

	return s;
}

static const char* nsvg__getNextPathItem(const char* s, char* it)
{
	it[0] = '\0';
	// Skip white spaces and commas
	while (*s && (nsvg__isspace(*s) || *s == ',')) s++;
	if (!*s) return s;
	if (*s == '-' || *s == '+' || *s == '.' || nsvg__isdigit(*s)) {
		s = nsvg__parseNumber(s, it, 64);
	} else {
		// Parse command
		it[0] = *s++;
		it[1] = '\0';
		return s;
	}

	return s;
}

static unsigned int nsvg__parseColorHex(const char* str)
{
	unsigned int c = 0, r = 0, g = 0, b = 0;
	int n = 0;
	str++; // skip #
	// Calculate number of characters.
	while(str[n] && !nsvg__isspace(str[n]))
		n++;
	if (n == 6) {
		sscanf(str, "%x", &c);
	} else if (n == 3) {
		sscanf(str, "%x", &c);
		c = (c&0xf) | ((c&0xf0) << 4) | ((c&0xf00) << 8);
		c |= c<<4;
	}
	r = (c >> 16) & 0xff;
	g = (c >> 8) & 0xff;
	b = c & 0xff;
	return NSVG_RGB(r,g,b);
}

static unsigned int nsvg__parseColorRGB(const char* str)
{
	int r = -1, g = -1, b = -1;
	char s1[32]="", s2[32]="";
	sscanf(str + 4, "%d%[%%, \t]%d%[%%, \t]%d", &r, s1, &g, s2, &b);
	if (strchr(s1, '%')) {
		return NSVG_RGB((r*255)/100,(g*255)/100,(b*255)/100);
	} else {
		return NSVG_RGB(r,g,b);
	}
}

typedef struct NSVGNamedColor {
	const char* name;
	unsigned int color;
} NSVGNamedColor;

NSVGNamedColor nsvg__colors[] = {

	{ "red", NSVG_RGB(255, 0, 0) },
	{ "green", NSVG_RGB( 0, 128, 0) },
	{ "blue", NSVG_RGB( 0, 0, 255) },
	{ "yellow", NSVG_RGB(255, 255, 0) },
	{ "cyan", NSVG_RGB( 0, 255, 255) },
	{ "magenta", NSVG_RGB(255, 0, 255) },
	{ "black", NSVG_RGB( 0, 0, 0) },
	{ "grey", NSVG_RGB(128, 128, 128) },
	{ "gray", NSVG_RGB(128, 128, 128) },
	{ "white", NSVG_RGB(255, 255, 255) },

#ifdef NANOSVG_ALL_COLOR_KEYWORDS
	{ "aliceblue", NSVG_RGB(240, 248, 255) },
	{ "antiquewhite", NSVG_RGB(250, 235, 215) },
	{ "aqua", NSVG_RGB( 0, 255, 255) },
	{ "aquamarine", NSVG_RGB(127, 255, 212) },
	{ "azure", NSVG_RGB(240, 255, 255) },
	{ "beige", NSVG_RGB(245, 245, 220) },
	{ "bisque", NSVG_RGB(255, 228, 196) },
	{ "blanchedalmond", NSVG_RGB(255, 235, 205) },
	{ "blueviolet", NSVG_RGB(138, 43, 226) },
	{ "brown", NSVG_RGB(165, 42, 42) },
	{ "burlywood", NSVG_RGB(222, 184, 135) },
	{ "cadetblue", NSVG_RGB( 95, 158, 160) },
	{ "chartreuse", NSVG_RGB(127, 255, 0) },
	{ "chocolate", NSVG_RGB(210, 105, 30) },
	{ "coral", NSVG_RGB(255, 127, 80) },
	{ "cornflowerblue", NSVG_RGB(100, 149, 237) },
	{ "cornsilk", NSVG_RGB(255, 248, 220) },
	{ "crimson", NSVG_RGB(220, 20, 60) },
	{ "darkblue", NSVG_RGB( 0, 0, 139) },
	{ "darkcyan", NSVG_RGB( 0, 139, 139) },
	{ "darkgoldenrod", NSVG_RGB(184, 134, 11) },
	{ "darkgray", NSVG_RGB(169, 169, 169) },
	{ "darkgreen", NSVG_RGB( 0, 100, 0) },
	{ "darkgrey", NSVG_RGB(169, 169, 169) },
	{ "darkkhaki", NSVG_RGB(189, 183, 107) },
	{ "darkmagenta", NSVG_RGB(139, 0, 139) },
	{ "darkolivegreen", NSVG_RGB( 85, 107, 47) },
	{ "darkorange", NSVG_RGB(255, 140, 0) },
	{ "darkorchid", NSVG_RGB(153, 50, 204) },
	{ "darkred", NSVG_RGB(139, 0, 0) },
	{ "darksalmon", NSVG_RGB(233, 150, 122) },
	{ "darkseagreen", NSVG_RGB(143, 188, 143) },
	{ "darkslateblue", NSVG_RGB( 72, 61, 139) },
	{ "darkslategray", NSVG_RGB( 47, 79, 79) },
	{ "darkslategrey", NSVG_RGB( 47, 79, 79) },
	{ "darkturquoise", NSVG_RGB( 0, 206, 209) },
	{ "darkviolet", NSVG_RGB(148, 0, 211) },
	{ "deeppink", NSVG_RGB(255, 20, 147) },
	{ "deepskyblue", NSVG_RGB( 0, 191, 255) },
	{ "dimgray", NSVG_RGB(105, 105, 105) },
	{ "dimgrey", NSVG_RGB(105, 105, 105) },
	{ "dodgerblue", NSVG_RGB( 30, 144, 255) },
	{ "firebrick", NSVG_RGB(178, 34, 34) },
	{ "floralwhite", NSVG_RGB(255, 250, 240) },
	{ "forestgreen", NSVG_RGB( 34, 139, 34) },
	{ "fuchsia", NSVG_RGB(255, 0, 255) },
	{ "gainsboro", NSVG_RGB(220, 220, 220) },
	{ "ghostwhite", NSVG_RGB(248, 248, 255) },
	{ "gold", NSVG_RGB(255, 215, 0) },
	{ "goldenrod", NSVG_RGB(218, 165, 32) },
	{ "greenyellow", NSVG_RGB(173, 255, 47) },
	{ "honeydew", NSVG_RGB(240, 255, 240) },
	{ "hotpink", NSVG_RGB(255, 105, 180) },
	{ "indianred", NSVG_RGB(205, 92, 92) },
	{ "indigo", NSVG_RGB( 75, 0, 130) },
	{ "ivory", NSVG_RGB(255, 255, 240) },
	{ "khaki", NSVG_RGB(240, 230, 140) },
	{ "lavender", NSVG_RGB(230, 230, 250) },
	{ "lavenderblush", NSVG_RGB(255, 240, 245) },
	{ "lawngreen", NSVG_RGB(124, 252, 0) },
	{ "lemonchiffon", NSVG_RGB(255, 250, 205) },
	{ "lightblue", NSVG_RGB(173, 216, 230) },
	{ "lightcoral", NSVG_RGB(240, 128, 128) },
	{ "lightcyan", NSVG_RGB(224, 255, 255) },
	{ "lightgoldenrodyellow", NSVG_RGB(250, 250, 210) },
	{ "lightgray", NSVG_RGB(211, 211, 211) },
	{ "lightgreen", NSVG_RGB(144, 238, 144) },
	{ "lightgrey", NSVG_RGB(211, 211, 211) },
	{ "lightpink", NSVG_RGB(255, 182, 193) },
	{ "lightsalmon", NSVG_RGB(255, 160, 122) },
	{ "lightseagreen", NSVG_RGB( 32, 178, 170) },
	{ "lightskyblue", NSVG_RGB(135, 206, 250) },
	{ "lightslategray", NSVG_RGB(119, 136, 153) },
	{ "lightslategrey", NSVG_RGB(119, 136, 153) },
	{ "lightsteelblue", NSVG_RGB(176, 196, 222) },
	{ "lightyellow", NSVG_RGB(255, 255, 224) },
	{ "lime", NSVG_RGB( 0, 255, 0) },
	{ "limegreen", NSVG_RGB( 50, 205, 50) },
	{ "linen", NSVG_RGB(250, 240, 230) },
	{ "maroon", NSVG_RGB(128, 0, 0) },
	{ "mediumaquamarine", NSVG_RGB(102, 205, 170) },
	{ "mediumblue", NSVG_RGB( 0, 0, 205) },
	{ "mediumorchid", NSVG_RGB(186, 85, 211) },
	{ "mediumpurple", NSVG_RGB(147, 112, 219) },
	{ "mediumseagreen", NSVG_RGB( 60, 179, 113) },
	{ "mediumslateblue", NSVG_RGB(123, 104, 238) },
	{ "mediumspringgreen", NSVG_RGB( 0, 250, 154) },
	{ "mediumturquoise", NSVG_RGB( 72, 209, 204) },
	{ "mediumvioletred", NSVG_RGB(199, 21, 133) },
	{ "midnightblue", NSVG_RGB( 25, 25, 112) },
	{ "mintcream", NSVG_RGB(245, 255, 250) },
	{ "mistyrose", NSVG_RGB(255, 228, 225) },
	{ "moccasin", NSVG_RGB(255, 228, 181) },
	{ "navajowhite", NSVG_RGB(255, 222, 173) },
	{ "navy", NSVG_RGB( 0, 0, 128) },
	{ "oldlace", NSVG_RGB(253, 245, 230) },
	{ "olive", NSVG_RGB(128, 128, 0) },
	{ "olivedrab", NSVG_RGB(107, 142, 35) },
	{ "orange", NSVG_RGB(255, 165, 0) },
	{ "orangered", NSVG_RGB(255, 69, 0) },
	{ "orchid", NSVG_RGB(218, 112, 214) },
	{ "palegoldenrod", NSVG_RGB(238, 232, 170) },
	{ "palegreen", NSVG_RGB(152, 251, 152) },
	{ "paleturquoise", NSVG_RGB(175, 238, 238) },
	{ "palevioletred", NSVG_RGB(219, 112, 147) },
	{ "papayawhip", NSVG_RGB(255, 239, 213) },
	{ "peachpuff", NSVG_RGB(255, 218, 185) },
	{ "peru", NSVG_RGB(205, 133, 63) },
	{ "pink", NSVG_RGB(255, 192, 203) },
	{ "plum", NSVG_RGB(221, 160, 221) },
	{ "powderblue", NSVG_RGB(176, 224, 230) },
	{ "purple", NSVG_RGB(128, 0, 128) },
	{ "rosybrown", NSVG_RGB(188, 143, 143) },
	{ "royalblue", NSVG_RGB( 65, 105, 225) },
	{ "saddlebrown", NSVG_RGB(139, 69, 19) },
	{ "salmon", NSVG_RGB(250, 128, 114) },
	{ "sandybrown", NSVG_RGB(244, 164, 96) },
	{ "seagreen", NSVG_RGB( 46, 139, 87) },
	{ "seashell", NSVG_RGB(255, 245, 238) },
	{ "sienna", NSVG_RGB(160, 82, 45) },
	{ "silver", NSVG_RGB(192, 192, 192) },
	{ "skyblue", NSVG_RGB(135, 206, 235) },
	{ "slateblue", NSVG_RGB(106, 90, 205) },
	{ "slategray", NSVG_RGB(112, 128, 144) },
	{ "slategrey", NSVG_RGB(112, 128, 144) },
	{ "snow", NSVG_RGB(255, 250, 250) },
	{ "springgreen", NSVG_RGB( 0, 255, 127) },
	{ "steelblue", NSVG_RGB( 70, 130, 180) },
	{ "tan", NSVG_RGB(210, 180, 140) },
	{ "teal", NSVG_RGB( 0, 128, 128) },
	{ "thistle", NSVG_RGB(216, 191, 216) },
	{ "tomato", NSVG_RGB(255, 99, 71) },
	{ "turquoise", NSVG_RGB( 64, 224, 208) },
	{ "violet", NSVG_RGB(238, 130, 238) },
	{ "wheat", NSVG_RGB(245, 222, 179) },
	{ "whitesmoke", NSVG_RGB(245, 245, 245) },
	{ "yellowgreen", NSVG_RGB(154, 205, 50) },
#endif
};

static unsigned int nsvg__parseColorName(const char* str)
{
	int i, ncolors = sizeof(nsvg__colors) / sizeof(NSVGNamedColor);

	for (i = 0; i < ncolors; i++) {
		if (strcmp(nsvg__colors[i].name, str) == 0) {
			return nsvg__colors[i].color;
		}
	}

	return NSVG_RGB(128, 128, 128);
}

static unsigned int nsvg__parseColor(const char* str)
{
	size_t len = 0;
	while(*str == ' ') ++str;
	len = strlen(str);
	if (len >= 1 && *str == '#')
		return nsvg__parseColorHex(str);
	else if (len >= 4 && str[0] == 'r' && str[1] == 'g' && str[2] == 'b' && str[3] == '(')
		return nsvg__parseColorRGB(str);
	return nsvg__parseColorName(str);
}

static float nsvg__parseOpacity(const char* str)
{
	float val = 0;
	sscanf(str, "%f", &val);
	if (val < 0.0f) val = 0.0f;
	if (val > 1.0f) val = 1.0f;
	return val;
}

static float nsvg__parseMiterLimit(const char* str)
{
	float val = 0;
	sscanf(str, "%f", &val);
	if (val < 0.0f) val = 0.0f;
	return val;
}

static int nsvg__parseUnits(const char* units)
{
	if (units[0] == 'p' && units[1] == 'x')
		return NSVG_UNITS_PX;
	else if (units[0] == 'p' && units[1] == 't')
		return NSVG_UNITS_PT;
	else if (units[0] == 'p' && units[1] == 'c')
		return NSVG_UNITS_PC;
	else if (units[0] == 'm' && units[1] == 'm')
		return NSVG_UNITS_MM;
	else if (units[0] == 'c' && units[1] == 'm')
		return NSVG_UNITS_CM;
	else if (units[0] == 'i' && units[1] == 'n')
		return NSVG_UNITS_IN;
	else if (units[0] == '%')
		return NSVG_UNITS_PERCENT;
	else if (units[0] == 'e' && units[1] == 'm')
		return NSVG_UNITS_EM;
	else if (units[0] == 'e' && units[1] == 'x')
		return NSVG_UNITS_EX;
	return NSVG_UNITS_USER;
}

static NSVGcoordinate nsvg__parseCoordinateRaw(const char* str)
{
	NSVGcoordinate coord = {0, NSVG_UNITS_USER};
	char units[32]="";
	sscanf(str, "%f%s", &coord.value, units);
	coord.units = nsvg__parseUnits(units);
	return coord;
}

static NSVGcoordinate nsvg__coord(float v, int units)
{
	NSVGcoordinate coord = {v, units};
	return coord;
}

static float nsvg__parseCoordinate(NSVGparser* p, const char* str, float orig, float length)
{
	NSVGcoordinate coord = nsvg__parseCoordinateRaw(str);
	return nsvg__convertToPixels(p, coord, orig, length);
}

static int nsvg__parseTransformArgs(const char* str, float* args, int maxNa, int* na)
{
	const char* end;
	const char* ptr;
	char it[64];

	*na = 0;
	ptr = str;
	while (*ptr && *ptr != '(') ++ptr;
	if (*ptr == 0)
		return 1;
	end = ptr;
	while (*end && *end != ')') ++end;
	if (*end == 0)
		return 1;

	while (ptr < end) {
		if (*ptr == '-' || *ptr == '+' || *ptr == '.' || nsvg__isdigit(*ptr)) {
			if (*na >= maxNa) return 0;
			ptr = nsvg__parseNumber(ptr, it, 64);
			args[(*na)++] = (float)nsvg__atof(it);
		} else {
			++ptr;
		}
	}
	return (int)(end - str);
}


static int nsvg__parseMatrix(float* xform, const char* str)
{
	float t[6];
	int na = 0;
	int len = nsvg__parseTransformArgs(str, t, 6, &na);
	if (na != 6) return len;
	memcpy(xform, t, sizeof(float)*6);
	return len;
}

static int nsvg__parseTranslate(float* xform, const char* str)
{
	float args[2];
	float t[6];
	int na = 0;
	int len = nsvg__parseTransformArgs(str, args, 2, &na);
	if (na == 1) args[1] = 0.0;

	nsvg__xformSetTranslation(t, args[0], args[1]);
	memcpy(xform, t, sizeof(float)*6);
	return len;
}

static int nsvg__parseScale(float* xform, const char* str)
{
	float args[2];
	int na = 0;
	float t[6];
	int len = nsvg__parseTransformArgs(str, args, 2, &na);
	if (na == 1) args[1] = args[0];
	nsvg__xformSetScale(t, args[0], args[1]);
	memcpy(xform, t, sizeof(float)*6);
	return len;
}

static int nsvg__parseSkewX(float* xform, const char* str)
{
	float args[1];
	int na = 0;
	float t[6];
	int len = nsvg__parseTransformArgs(str, args, 1, &na);
	nsvg__xformSetSkewX(t, args[0]/180.0f*NSVG_PI);
	memcpy(xform, t, sizeof(float)*6);
	return len;
}

static int nsvg__parseSkewY(float* xform, const char* str)
{
	float args[1];
	int na = 0;
	float t[6];
	int len = nsvg__parseTransformArgs(str, args, 1, &na);
	nsvg__xformSetSkewY(t, args[0]/180.0f*NSVG_PI);
	memcpy(xform, t, sizeof(float)*6);
	return len;
}

static int nsvg__parseRotate(float* xform, const char* str)
{
	float args[3];
	int na = 0;
	float m[6];
	float t[6];
	int len = nsvg__parseTransformArgs(str, args, 3, &na);
	if (na == 1)
		args[1] = args[2] = 0.0f;
	nsvg__xformIdentity(m);

	if (na > 1) {
		nsvg__xformSetTranslation(t, -args[1], -args[2]);
		nsvg__xformMultiply(m, t);
	}

	nsvg__xformSetRotation(t, args[0]/180.0f*NSVG_PI);
	nsvg__xformMultiply(m, t);

	if (na > 1) {
		nsvg__xformSetTranslation(t, args[1], args[2]);
		nsvg__xformMultiply(m, t);
	}

	memcpy(xform, m, sizeof(float)*6);

	return len;
}

static void nsvg__parseTransform(float* xform, const char* str)
{
	float t[6];
	nsvg__xformIdentity(xform);
	while (*str)
	{
		if (strncmp(str, "matrix", 6) == 0)
			str += nsvg__parseMatrix(t, str);
		else if (strncmp(str, "translate", 9) == 0)
			str += nsvg__parseTranslate(t, str);
		else if (strncmp(str, "scale", 5) == 0)
			str += nsvg__parseScale(t, str);
		else if (strncmp(str, "rotate", 6) == 0)
			str += nsvg__parseRotate(t, str);
		else if (strncmp(str, "skewX", 5) == 0)
			str += nsvg__parseSkewX(t, str);
		else if (strncmp(str, "skewY", 5) == 0)
			str += nsvg__parseSkewY(t, str);
		else{
			++str;
			continue;
		}

		nsvg__xformPremultiply(xform, t);
	}
}

static void nsvg__parseUrl(char* id, const char* str)
{
	int i = 0;
	str += 4; // "url(";
	if (*str == '#')
		str++;
	while (i < 63 && *str != ')') {
		id[i] = *str++;
		i++;
	}
	id[i] = '\0';
}

static char nsvg__parseLineCap(const char* str)
{
	if (strcmp(str, "butt") == 0)
		return NSVG_CAP_BUTT;
	else if (strcmp(str, "round") == 0)
		return NSVG_CAP_ROUND;
	else if (strcmp(str, "square") == 0)
		return NSVG_CAP_SQUARE;
	// TODO: handle inherit.
	return NSVG_CAP_BUTT;
}

static char nsvg__parseLineJoin(const char* str)
{
	if (strcmp(str, "miter") == 0)
		return NSVG_JOIN_MITER;
	else if (strcmp(str, "round") == 0)
		return NSVG_JOIN_ROUND;
	else if (strcmp(str, "bevel") == 0)
		return NSVG_JOIN_BEVEL;
	// TODO: handle inherit.
	return NSVG_JOIN_MITER;
}

static char nsvg__parseFillRule(const char* str)
{
	if (strcmp(str, "nonzero") == 0)
		return NSVG_FILLRULE_NONZERO;
	else if (strcmp(str, "evenodd") == 0)
		return NSVG_FILLRULE_EVENODD;
	// TODO: handle inherit.
	return NSVG_FILLRULE_NONZERO;
}

static const char* nsvg__getNextDashItem(const char* s, char* it)
{
	int n = 0;
	it[0] = '\0';
	// Skip white spaces and commas
	while (*s && (nsvg__isspace(*s) || *s == ',')) s++;
	// Advance until whitespace, comma or end.
	while (*s && (!nsvg__isspace(*s) && *s != ',')) {
		if (n < 63)
			it[n++] = *s;
		s++;
	}
	it[n++] = '\0';
	return s;
}

static int nsvg__parseStrokeDashArray(NSVGparser* p, const char* str, float* strokeDashArray)
{
	char item[64];
	int count = 0, i;
	float sum = 0.0f;

	// Handle "none"
	if (str[0] == 'n')
		return 0;

	// Parse dashes
	while (*str) {
		str = nsvg__getNextDashItem(str, item);
		if (!*item) break;
		if (count < NSVG_MAX_DASHES)
			strokeDashArray[count++] = fabsf(nsvg__parseCoordinate(p, item, 0.0f, nsvg__actualLength(p)));
	}

	for (i = 0; i < count; i++)
		sum += strokeDashArray[i];
	if (sum <= 1e-6f)
		count = 0;

	return count;
}

static void nsvg__parseStyle(NSVGparser* p, const char* str);

static int nsvg__parseAttr(NSVGparser* p, const char* name, const char* value)
{
	float xform[6];
	NSVGattrib* attr = nsvg__getAttr(p);
	if (!attr) return 0;

	if (strcmp(name, "style") == 0) {
		nsvg__parseStyle(p, value);
	} else if (strcmp(name, "display") == 0) {
		if (strcmp(value, "none") == 0)
			attr->visible &= ~NSVG_VIS_DISPLAY;
		// Don't reset ->visible on display:inline, one display:none hides the whole subtree

	} else if (strcmp(name, "visibility") == 0) {
		if (strcmp(value, "hidden") == 0) {
			attr->visible &= ~NSVG_VIS_VISIBLE;
		} else if (strcmp(value, "visible") == 0) {
			attr->visible |= NSVG_VIS_VISIBLE;
		}
	} else if (strcmp(name, "fill") == 0) {
		if (strcmp(value, "none") == 0) {
			attr->hasFill = 0;
		} else if (strncmp(value, "url(", 4) == 0) {
			attr->hasFill = 2;
			nsvg__parseUrl(attr->fillGradient, value);
		} else {
			attr->hasFill = 1;
			attr->fillColor = nsvg__parseColor(value);
		}
	} else if (strcmp(name, "opacity") == 0) {
		attr->opacity = nsvg__parseOpacity(value);
	} else if (strcmp(name, "fill-opacity") == 0) {
		attr->fillOpacity = nsvg__parseOpacity(value);
	} else if (strcmp(name, "stroke") == 0) {
		if (strcmp(value, "none") == 0) {
			attr->hasStroke = 0;
		} else if (strncmp(value, "url(", 4) == 0) {
			attr->hasStroke = 2;
			nsvg__parseUrl(attr->strokeGradient, value);
		} else {
			attr->hasStroke = 1;
			attr->strokeColor = nsvg__parseColor(value);
		}
	} else if (strcmp(name, "stroke-width") == 0) {
		attr->strokeWidth = nsvg__parseCoordinate(p, value, 0.0f, nsvg__actualLength(p));
	} else if (strcmp(name, "stroke-dasharray") == 0) {
		attr->strokeDashCount = nsvg__parseStrokeDashArray(p, value, attr->strokeDashArray);
	} else if (strcmp(name, "stroke-dashoffset") == 0) {
		attr->strokeDashOffset = nsvg__parseCoordinate(p, value, 0.0f, nsvg__actualLength(p));
	} else if (strcmp(name, "stroke-opacity") == 0) {
		attr->strokeOpacity = nsvg__parseOpacity(value);
	} else if (strcmp(name, "stroke-linecap") == 0) {
		attr->strokeLineCap = nsvg__parseLineCap(value);
	} else if (strcmp(name, "stroke-linejoin") == 0) {
		attr->strokeLineJoin = nsvg__parseLineJoin(value);
	} else if (strcmp(name, "stroke-miterlimit") == 0) {
		attr->miterLimit = nsvg__parseMiterLimit(value);
	} else if (strcmp(name, "fill-rule") == 0) {
		attr->fillRule = nsvg__parseFillRule(value);
	} else if (strcmp(name, "font-size") == 0) {
		attr->fontSize = nsvg__parseCoordinate(p, value, 0.0f, nsvg__actualLength(p));
	} else if (strcmp(name, "transform") == 0) {
		nsvg__parseTransform(xform, value);
		nsvg__xformPremultiply(attr->xform, xform);
	} else if (strcmp(name, "stop-color") == 0) {
		attr->stopColor = nsvg__parseColor(value);
	} else if (strcmp(name, "stop-opacity") == 0) {
		attr->stopOpacity = nsvg__parseOpacity(value);
	} else if (strcmp(name, "offset") == 0) {
		attr->stopOffset = nsvg__parseCoordinate(p, value, 0.0f, 1.0f);
	} else if (strcmp(name, "id") == 0) {
		strncpy(attr->id, value, 63);
		attr->id[63] = '\0';
	} else if (strcmp(name, "class") == 0) {
		NSVGstyles* style = p->styles;
		while (style) {
			if (strcmp(style->name + 1, value) == 0) {
				break;
			}
			style = style->next;
		}
		if (style) {
			nsvg__parseStyle(p, style->description);
		}
	} else {
		return 0;
	}
	return 1;
}

static int nsvg__parseNameValue(NSVGparser* p, const char* start, const char* end)
{
	const char* str;
	const char* val;
	char name[512];
	char value[512];
	int n;

	str = start;
	while (str < end && *str != ':') ++str;

	val = str;

	// Right Trim
	while (str > start &&  (*str == ':' || nsvg__isspace(*str))) --str;
	++str;

	n = (int)(str - start);
	if (n > 511) n = 511;
	if (n) memcpy(name, start, n);
	name[n] = 0;

	while (val < end && (*val == ':' || nsvg__isspace(*val))) ++val;

	n = (int)(end - val);
	if (n > 511) n = 511;
	if (n) memcpy(value, val, n);
	value[n] = 0;

	return nsvg__parseAttr(p, name, value);
}

static void nsvg__parseStyle(NSVGparser* p, const char* str)
{
	const char* start;
	const char* end;

	while (*str) {
		// Left Trim
		while(*str && nsvg__isspace(*str)) ++str;
		start = str;
		while(*str && *str != ';') ++str;
		end = str;

		// Right Trim
		while (end > start &&  (*end == ';' || nsvg__isspace(*end))) --end;
		++end;

		nsvg__parseNameValue(p, start, end);
		if (*str) ++str;
	}
}

static void nsvg__parseAttribs(NSVGparser* p, const char** attr)
{
	int i;
	for (i = 0; attr[i]; i += 2)
	{
		if (strcmp(attr[i], "style") == 0)
			nsvg__parseStyle(p, attr[i + 1]);
		else
			nsvg__parseAttr(p, attr[i], attr[i + 1]);
	}
}

static int nsvg__getArgsPerElement(char cmd)
{
	switch (cmd) {
		case 'v':
		case 'V':
		case 'h':
		case 'H':
			return 1;
		case 'm':
		case 'M':
		case 'l':
		case 'L':
		case 't':
		case 'T':
			return 2;
		case 'q':
		case 'Q':
		case 's':
		case 'S':
			return 4;
		case 'c':
		case 'C':
			return 6;
		case 'a':
		case 'A':
			return 7;
	}
	return 0;
}

static void nsvg__pathMoveTo(NSVGparser* p, float* cpx, float* cpy, float* args, int rel)
{
	if (rel) {
		*cpx += args[0];
		*cpy += args[1];
	} else {
		*cpx = args[0];
		*cpy = args[1];
	}
	nsvg__moveTo(p, *cpx, *cpy);
}

static void nsvg__pathLineTo(NSVGparser* p, float* cpx, float* cpy, float* args, int rel)
{
	if (rel) {
		*cpx += args[0];
		*cpy += args[1];
	} else {
		*cpx = args[0];
		*cpy = args[1];
	}
	nsvg__lineTo(p, *cpx, *cpy);
}

static void nsvg__pathHLineTo(NSVGparser* p, float* cpx, float* cpy, float* args, int rel)
{
	if (rel)
		*cpx += args[0];
	else
		*cpx = args[0];
	nsvg__lineTo(p, *cpx, *cpy);
}

static void nsvg__pathVLineTo(NSVGparser* p, float* cpx, float* cpy, float* args, int rel)
{
	if (rel)
		*cpy += args[0];
	else
		*cpy = args[0];
	nsvg__lineTo(p, *cpx, *cpy);
}

static void nsvg__pathCubicBezTo(NSVGparser* p, float* cpx, float* cpy,
								 float* cpx2, float* cpy2, float* args, int rel)
{
	float x2, y2, cx1, cy1, cx2, cy2;

	if (rel) {
		cx1 = *cpx + args[0];
		cy1 = *cpy + args[1];
		cx2 = *cpx + args[2];
		cy2 = *cpy + args[3];
		x2 = *cpx + args[4];
		y2 = *cpy + args[5];
	} else {
		cx1 = args[0];
		cy1 = args[1];
		cx2 = args[2];
		cy2 = args[3];
		x2 = args[4];
		y2 = args[5];
	}

	nsvg__cubicBezTo(p, cx1,cy1, cx2,cy2, x2,y2);

	*cpx2 = cx2;
	*cpy2 = cy2;
	*cpx = x2;
	*cpy = y2;
}

static void nsvg__pathCubicBezShortTo(NSVGparser* p, float* cpx, float* cpy,
									  float* cpx2, float* cpy2, float* args, int rel)
{
	float x1, y1, x2, y2, cx1, cy1, cx2, cy2;

	x1 = *cpx;
	y1 = *cpy;
	if (rel) {
		cx2 = *cpx + args[0];
		cy2 = *cpy + args[1];
		x2 = *cpx + args[2];
		y2 = *cpy + args[3];
	} else {
		cx2 = args[0];
		cy2 = args[1];
		x2 = args[2];
		y2 = args[3];
	}

	cx1 = 2*x1 - *cpx2;
	cy1 = 2*y1 - *cpy2;

	nsvg__cubicBezTo(p, cx1,cy1, cx2,cy2, x2,y2);

	*cpx2 = cx2;
	*cpy2 = cy2;
	*cpx = x2;
	*cpy = y2;
}

static void nsvg__pathQuadBezTo(NSVGparser* p, float* cpx, float* cpy,
								float* cpx2, float* cpy2, float* args, int rel)
{
	float x1, y1, x2, y2, cx, cy;
	float cx1, cy1, cx2, cy2;

	x1 = *cpx;
	y1 = *cpy;
	if (rel) {
		cx = *cpx + args[0];
		cy = *cpy + args[1];
		x2 = *cpx + args[2];
		y2 = *cpy + args[3];
	} else {
		cx = args[0];
		cy = args[1];
		x2 = args[2];
		y2 = args[3];
	}

	// Convert to cubic bezier
	cx1 = x1 + 2.0f/3.0f*(cx - x1);
	cy1 = y1 + 2.0f/3.0f*(cy - y1);
	cx2 = x2 + 2.0f/3.0f*(cx - x2);
	cy2 = y2 + 2.0f/3.0f*(cy - y2);

	nsvg__cubicBezTo(p, cx1,cy1, cx2,cy2, x2,y2);

	*cpx2 = cx;
	*cpy2 = cy;
	*cpx = x2;
	*cpy = y2;
}

static void nsvg__pathQuadBezShortTo(NSVGparser* p, float* cpx, float* cpy,
									 float* cpx2, float* cpy2, float* args, int rel)
{
	float x1, y1, x2, y2, cx, cy;
	float cx1, cy1, cx2, cy2;

	x1 = *cpx;
	y1 = *cpy;
	if (rel) {
		x2 = *cpx + args[0];
		y2 = *cpy + args[1];
	} else {
		x2 = args[0];
		y2 = args[1];
	}

	cx = 2*x1 - *cpx2;
	cy = 2*y1 - *cpy2;

	// Convert to cubix bezier
	cx1 = x1 + 2.0f/3.0f*(cx - x1);
	cy1 = y1 + 2.0f/3.0f*(cy - y1);
	cx2 = x2 + 2.0f/3.0f*(cx - x2);
	cy2 = y2 + 2.0f/3.0f*(cy - y2);

	nsvg__cubicBezTo(p, cx1,cy1, cx2,cy2, x2,y2);

	*cpx2 = cx;
	*cpy2 = cy;
	*cpx = x2;
	*cpy = y2;
}

static float nsvg__sqr(float x) { return x*x; }
static float nsvg__vmag(float x, float y) { return sqrtf(x*x + y*y); }

static float nsvg__vecrat(float ux, float uy, float vx, float vy)
{
	return (ux*vx + uy*vy) / (nsvg__vmag(ux,uy) * nsvg__vmag(vx,vy));
}

static float nsvg__vecang(float ux, float uy, float vx, float vy)
{
	float r = nsvg__vecrat(ux,uy, vx,vy);
	if (r < -1.0f) r = -1.0f;
	if (r > 1.0f) r = 1.0f;
	return ((ux*vy < uy*vx) ? -1.0f : 1.0f) * acosf(r);
}

static void nsvg__pathArcTo(NSVGparser* p, float* cpx, float* cpy, float* args, int rel)
{
	// Ported from canvg (https://code.google.com/p/canvg/)
	float rx, ry, rotx;
	float x1, y1, x2, y2, cx, cy, dx, dy, d;
	float x1p, y1p, cxp, cyp, s, sa, sb;
	float ux, uy, vx, vy, a1, da;
	float x, y, tanx, tany, a, px = 0, py = 0, ptanx = 0, ptany = 0, t[6];
	float sinrx, cosrx;
	int fa, fs;
	int i, ndivs;
	float hda, kappa;

	rx = fabsf(args[0]);				// y radius
	ry = fabsf(args[1]);				// x radius
	rotx = args[2] / 180.0f * NSVG_PI;		// x rotation angle
	fa = fabsf(args[3]) > 1e-6 ? 1 : 0;	// Large arc
	fs = fabsf(args[4]) > 1e-6 ? 1 : 0;	// Sweep direction
	x1 = *cpx;							// start point
	y1 = *cpy;
	if (rel) {							// end point
		x2 = *cpx + args[5];
		y2 = *cpy + args[6];
	} else {
		x2 = args[5];
		y2 = args[6];
	}

	dx = x1 - x2;
	dy = y1 - y2;
	d = sqrtf(dx*dx + dy*dy);
	if (d < 1e-6f || rx < 1e-6f || ry < 1e-6f) {
		// The arc degenerates to a line
		nsvg__lineTo(p, x2, y2);
		*cpx = x2;
		*cpy = y2;
		return;
	}

	sinrx = sinf(rotx);
	cosrx = cosf(rotx);

	// Convert to center point parameterization.
	// http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes
	// 1) Compute x1', y1'
	x1p = cosrx * dx / 2.0f + sinrx * dy / 2.0f;
	y1p = -sinrx * dx / 2.0f + cosrx * dy / 2.0f;
	d = nsvg__sqr(x1p)/nsvg__sqr(rx) + nsvg__sqr(y1p)/nsvg__sqr(ry);
	if (d > 1) {
		d = sqrtf(d);
		rx *= d;
		ry *= d;
	}
	// 2) Compute cx', cy'
	s = 0.0f;
	sa = nsvg__sqr(rx)*nsvg__sqr(ry) - nsvg__sqr(rx)*nsvg__sqr(y1p) - nsvg__sqr(ry)*nsvg__sqr(x1p);
	sb = nsvg__sqr(rx)*nsvg__sqr(y1p) + nsvg__sqr(ry)*nsvg__sqr(x1p);
	if (sa < 0.0f) sa = 0.0f;
	if (sb > 0.0f)
		s = sqrtf(sa / sb);
	if (fa == fs)
		s = -s;
	cxp = s * rx * y1p / ry;
	cyp = s * -ry * x1p / rx;

	// 3) Compute cx,cy from cx',cy'
	cx = (x1 + x2)/2.0f + cosrx*cxp - sinrx*cyp;
	cy = (y1 + y2)/2.0f + sinrx*cxp + cosrx*cyp;

	// 4) Calculate theta1, and delta theta.
	ux = (x1p - cxp) / rx;
	uy = (y1p - cyp) / ry;
	vx = (-x1p - cxp) / rx;
	vy = (-y1p - cyp) / ry;
	a1 = nsvg__vecang(1.0f,0.0f, ux,uy);	// Initial angle
	da = nsvg__vecang(ux,uy, vx,vy);		// Delta angle

//	if (vecrat(ux,uy,vx,vy) <= -1.0f) da = NSVG_PI;
//	if (vecrat(ux,uy,vx,vy) >= 1.0f) da = 0;

	if (fs == 0 && da > 0)
		da -= 2 * NSVG_PI;
	else if (fs == 1 && da < 0)
		da += 2 * NSVG_PI;

	// Approximate the arc using cubic spline segments.
	t[0] = cosrx; t[1] = sinrx;
	t[2] = -sinrx; t[3] = cosrx;
	t[4] = cx; t[5] = cy;

	// Split arc into max 90 degree segments.
	// The loop assumes an iteration per end point (including start and end), this +1.
	ndivs = (int)(fabsf(da) / (NSVG_PI*0.5f) + 1.0f);
	hda = (da / (float)ndivs) / 2.0f;
	kappa = fabsf(4.0f / 3.0f * (1.0f - cosf(hda)) / sinf(hda));
	if (da < 0.0f)
		kappa = -kappa;

	for (i = 0; i <= ndivs; i++) {
		a = a1 + da * ((float)i/(float)ndivs);
		dx = cosf(a);
		dy = sinf(a);
		nsvg__xformPoint(&x, &y, dx*rx, dy*ry, t); // position
		nsvg__xformVec(&tanx, &tany, -dy*rx * kappa, dx*ry * kappa, t); // tangent
		if (i > 0)
			nsvg__cubicBezTo(p, px+ptanx,py+ptany, x-tanx, y-tany, x, y);
		px = x;
		py = y;
		ptanx = tanx;
		ptany = tany;
	}

	*cpx = x2;
	*cpy = y2;
}

static void nsvg__parsePath(NSVGparser* p, const char** attr)
{
	const char* s = NULL;
	char cmd = '\0';
	float args[10];
	int nargs;
	int rargs = 0;
	float cpx, cpy, cpx2, cpy2;
	const char* tmp[4];
	char closedFlag;
	int i;
	char item[64];

	for (i = 0; attr[i]; i += 2) {
		if (strcmp(attr[i], "d") == 0) {
			s = attr[i + 1];
		} else {
			tmp[0] = attr[i];
			tmp[1] = attr[i + 1];
			tmp[2] = 0;
			tmp[3] = 0;
			nsvg__parseAttribs(p, tmp);
		}
	}

	if (s) {
		nsvg__resetPath(p);
		cpx = 0; cpy = 0;
		cpx2 = 0; cpy2 = 0;
		closedFlag = 0;
		nargs = 0;

		while (*s) {
			s = nsvg__getNextPathItem(s, item);
			if (!*item) break;
			if (nsvg__isnum(item[0])) {
				if (nargs < 10)
					args[nargs++] = (float)nsvg__atof(item);
				if (nargs >= rargs) {
					switch (cmd) {
						case 'm':
						case 'M':
							nsvg__pathMoveTo(p, &cpx, &cpy, args, cmd == 'm' ? 1 : 0);
							// Moveto can be followed by multiple coordinate pairs,
							// which should be treated as linetos.
							cmd = (cmd == 'm') ? 'l' : 'L';
							rargs = nsvg__getArgsPerElement(cmd);
							cpx2 = cpx; cpy2 = cpy;
							break;
						case 'l':
						case 'L':
							nsvg__pathLineTo(p, &cpx, &cpy, args, cmd == 'l' ? 1 : 0);
							cpx2 = cpx; cpy2 = cpy;
							break;
						case 'H':
						case 'h':
							nsvg__pathHLineTo(p, &cpx, &cpy, args, cmd == 'h' ? 1 : 0);
							cpx2 = cpx; cpy2 = cpy;
							break;
						case 'V':
						case 'v':
							nsvg__pathVLineTo(p, &cpx, &cpy, args, cmd == 'v' ? 1 : 0);
							cpx2 = cpx; cpy2 = cpy;
							break;
						case 'C':
						case 'c':
							nsvg__pathCubicBezTo(p, &cpx, &cpy, &cpx2, &cpy2, args, cmd == 'c' ? 1 : 0);
							break;
						case 'S':
						case 's':
							nsvg__pathCubicBezShortTo(p, &cpx, &cpy, &cpx2, &cpy2, args, cmd == 's' ? 1 : 0);
							break;
						case 'Q':
						case 'q':
							nsvg__pathQuadBezTo(p, &cpx, &cpy, &cpx2, &cpy2, args, cmd == 'q' ? 1 : 0);
							break;
						case 'T':
						case 't':
							nsvg__pathQuadBezShortTo(p, &cpx, &cpy, &cpx2, &cpy2, args, cmd == 't' ? 1 : 0);
							break;
						case 'A':
						case 'a':
							nsvg__pathArcTo(p, &cpx, &cpy, args, cmd == 'a' ? 1 : 0);
							cpx2 = cpx; cpy2 = cpy;
							break;
						default:
							if (nargs >= 2) {
								cpx = args[nargs-2];
								cpy = args[nargs-1];
								cpx2 = cpx; cpy2 = cpy;
							}
							break;
					}
					nargs = 0;
				}
			} else {
				cmd = item[0];
				rargs = nsvg__getArgsPerElement(cmd);
				if (cmd == 'M' || cmd == 'm') {
					// Commit path.
					if (p->npts > 0)
						nsvg__addPath(p, closedFlag);
					// Start new subpath.
					nsvg__resetPath(p);
					closedFlag = 0;
					nargs = 0;
				} else if (cmd == 'Z' || cmd == 'z') {
					closedFlag = 1;
					// Commit path.
					if (p->npts > 0) {
						// Move current point to first point
						cpx = p->pts[0];
						cpy = p->pts[1];
						cpx2 = cpx; cpy2 = cpy;
						nsvg__addPath(p, closedFlag);
					}
					// Start new subpath.
					nsvg__resetPath(p);
					nsvg__moveTo(p, cpx, cpy);
					closedFlag = 0;
					nargs = 0;
				}
			}
		}
		// Commit path.
		if (p->npts)
			nsvg__addPath(p, closedFlag);
	}

	nsvg__addShape(p);
}

static void nsvg__parseRect(NSVGparser* p, const char** attr)
{
	float x = 0.0f;
	float y = 0.0f;
	float w = 0.0f;
	float h = 0.0f;
	float rx = -1.0f; // marks not set
	float ry = -1.0f;
	int i;

	for (i = 0; attr[i]; i += 2) {
		if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) {
			if (strcmp(attr[i], "x") == 0) x = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigX(p), nsvg__actualWidth(p));
			if (strcmp(attr[i], "y") == 0) y = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
			if (strcmp(attr[i], "width") == 0) w = nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualWidth(p));
			if (strcmp(attr[i], "height") == 0) h = nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualHeight(p));
			if (strcmp(attr[i], "rx") == 0) rx = fabsf(nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualWidth(p)));
			if (strcmp(attr[i], "ry") == 0) ry = fabsf(nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualHeight(p)));
		}
	}

	if (rx < 0.0f && ry > 0.0f) rx = ry;
	if (ry < 0.0f && rx > 0.0f) ry = rx;
	if (rx < 0.0f) rx = 0.0f;
	if (ry < 0.0f) ry = 0.0f;
	if (rx > w/2.0f) rx = w/2.0f;
	if (ry > h/2.0f) ry = h/2.0f;

	if (w != 0.0f && h != 0.0f) {
		nsvg__resetPath(p);

		if (rx < 0.00001f || ry < 0.0001f) {
			nsvg__moveTo(p, x, y);
			nsvg__lineTo(p, x+w, y);
			nsvg__lineTo(p, x+w, y+h);
			nsvg__lineTo(p, x, y+h);
		} else {
			// Rounded rectangle
			nsvg__moveTo(p, x+rx, y);
			nsvg__lineTo(p, x+w-rx, y);
			nsvg__cubicBezTo(p, x+w-rx*(1-NSVG_KAPPA90), y, x+w, y+ry*(1-NSVG_KAPPA90), x+w, y+ry);
			nsvg__lineTo(p, x+w, y+h-ry);
			nsvg__cubicBezTo(p, x+w, y+h-ry*(1-NSVG_KAPPA90), x+w-rx*(1-NSVG_KAPPA90), y+h, x+w-rx, y+h);
			nsvg__lineTo(p, x+rx, y+h);
			nsvg__cubicBezTo(p, x+rx*(1-NSVG_KAPPA90), y+h, x, y+h-ry*(1-NSVG_KAPPA90), x, y+h-ry);
			nsvg__lineTo(p, x, y+ry);
			nsvg__cubicBezTo(p, x, y+ry*(1-NSVG_KAPPA90), x+rx*(1-NSVG_KAPPA90), y, x+rx, y);
		}

		nsvg__addPath(p, 1);

		nsvg__addShape(p);
	}
}

static void nsvg__parseCircle(NSVGparser* p, const char** attr)
{
	float cx = 0.0f;
	float cy = 0.0f;
	float r = 0.0f;
	int i;

	for (i = 0; attr[i]; i += 2) {
		if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) {
			if (strcmp(attr[i], "cx") == 0) cx = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigX(p), nsvg__actualWidth(p));
			if (strcmp(attr[i], "cy") == 0) cy = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
			if (strcmp(attr[i], "r") == 0) r = fabsf(nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualLength(p)));
		}
	}

	if (r > 0.0f) {
		nsvg__resetPath(p);

		nsvg__moveTo(p, cx+r, cy);
		nsvg__cubicBezTo(p, cx+r, cy+r*NSVG_KAPPA90, cx+r*NSVG_KAPPA90, cy+r, cx, cy+r);
		nsvg__cubicBezTo(p, cx-r*NSVG_KAPPA90, cy+r, cx-r, cy+r*NSVG_KAPPA90, cx-r, cy);
		nsvg__cubicBezTo(p, cx-r, cy-r*NSVG_KAPPA90, cx-r*NSVG_KAPPA90, cy-r, cx, cy-r);
		nsvg__cubicBezTo(p, cx+r*NSVG_KAPPA90, cy-r, cx+r, cy-r*NSVG_KAPPA90, cx+r, cy);

		nsvg__addPath(p, 1);

		nsvg__addShape(p);
	}
}

static void nsvg__parseEllipse(NSVGparser* p, const char** attr)
{
	float cx = 0.0f;
	float cy = 0.0f;
	float rx = 0.0f;
	float ry = 0.0f;
	int i;

	for (i = 0; attr[i]; i += 2) {
		if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) {
			if (strcmp(attr[i], "cx") == 0) cx = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigX(p), nsvg__actualWidth(p));
			if (strcmp(attr[i], "cy") == 0) cy = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
			if (strcmp(attr[i], "rx") == 0) rx = fabsf(nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualWidth(p)));
			if (strcmp(attr[i], "ry") == 0) ry = fabsf(nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualHeight(p)));
		}
	}

	if (rx > 0.0f && ry > 0.0f) {

		nsvg__resetPath(p);

		nsvg__moveTo(p, cx+rx, cy);
		nsvg__cubicBezTo(p, cx+rx, cy+ry*NSVG_KAPPA90, cx+rx*NSVG_KAPPA90, cy+ry, cx, cy+ry);
		nsvg__cubicBezTo(p, cx-rx*NSVG_KAPPA90, cy+ry, cx-rx, cy+ry*NSVG_KAPPA90, cx-rx, cy);
		nsvg__cubicBezTo(p, cx-rx, cy-ry*NSVG_KAPPA90, cx-rx*NSVG_KAPPA90, cy-ry, cx, cy-ry);
		nsvg__cubicBezTo(p, cx+rx*NSVG_KAPPA90, cy-ry, cx+rx, cy-ry*NSVG_KAPPA90, cx+rx, cy);

		nsvg__addPath(p, 1);

		nsvg__addShape(p);
	}
}

static void nsvg__parseLine(NSVGparser* p, const char** attr)
{
	float x1 = 0.0;
	float y1 = 0.0;
	float x2 = 0.0;
	float y2 = 0.0;
	int i;

	for (i = 0; attr[i]; i += 2) {
		if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) {
			if (strcmp(attr[i], "x1") == 0) x1 = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigX(p), nsvg__actualWidth(p));
			if (strcmp(attr[i], "y1") == 0) y1 = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
			if (strcmp(attr[i], "x2") == 0) x2 = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigX(p), nsvg__actualWidth(p));
			if (strcmp(attr[i], "y2") == 0) y2 = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
		}
	}

	nsvg__resetPath(p);

	nsvg__moveTo(p, x1, y1);
	nsvg__lineTo(p, x2, y2);

	nsvg__addPath(p, 0);

	nsvg__addShape(p);
}

static void nsvg__parsePoly(NSVGparser* p, const char** attr, int closeFlag)
{
	int i;
	const char* s;
	float args[2];
	int nargs, npts = 0;
	char item[64];

	nsvg__resetPath(p);

	for (i = 0; attr[i]; i += 2) {
		if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) {
			if (strcmp(attr[i], "points") == 0) {
				s = attr[i + 1];
				nargs = 0;
				while (*s) {
					s = nsvg__getNextPathItem(s, item);
					args[nargs++] = (float)nsvg__atof(item);
					if (nargs >= 2) {
						if (npts == 0)
							nsvg__moveTo(p, args[0], args[1]);
						else
							nsvg__lineTo(p, args[0], args[1]);
						nargs = 0;
						npts++;
					}
				}
			}
		}
	}

	nsvg__addPath(p, (char)closeFlag);

	nsvg__addShape(p);
}

static void nsvg__parseSVG(NSVGparser* p, const char** attr)
{
	int i;
	for (i = 0; attr[i]; i += 2) {
		if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) {
			if (strcmp(attr[i], "width") == 0) {
				p->image->width = nsvg__parseCoordinate(p, attr[i + 1], 0.0f, 0.0f);
			} else if (strcmp(attr[i], "height") == 0) {
				p->image->height = nsvg__parseCoordinate(p, attr[i + 1], 0.0f, 0.0f);
			} else if (strcmp(attr[i], "viewBox") == 0) {
				sscanf(attr[i + 1], "%f%*[%%, \t]%f%*[%%, \t]%f%*[%%, \t]%f", &p->viewMinx, &p->viewMiny, &p->viewWidth, &p->viewHeight);
			} else if (strcmp(attr[i], "preserveAspectRatio") == 0) {
				if (strstr(attr[i + 1], "none") != 0) {
					// No uniform scaling
					p->alignType = NSVG_ALIGN_NONE;
				} else {
					// Parse X align
					if (strstr(attr[i + 1], "xMin") != 0)
						p->alignX = NSVG_ALIGN_MIN;
					else if (strstr(attr[i + 1], "xMid") != 0)
						p->alignX = NSVG_ALIGN_MID;
					else if (strstr(attr[i + 1], "xMax") != 0)
						p->alignX = NSVG_ALIGN_MAX;
					// Parse X align
					if (strstr(attr[i + 1], "yMin") != 0)
						p->alignY = NSVG_ALIGN_MIN;
					else if (strstr(attr[i + 1], "yMid") != 0)
						p->alignY = NSVG_ALIGN_MID;
					else if (strstr(attr[i + 1], "yMax") != 0)
						p->alignY = NSVG_ALIGN_MAX;
					// Parse meet/slice
					p->alignType = NSVG_ALIGN_MEET;
					if (strstr(attr[i + 1], "slice") != 0)
						p->alignType = NSVG_ALIGN_SLICE;
				}
			}
		}
	}
}

static void nsvg__parseGradient(NSVGparser* p, const char** attr, char type)
{
	int i;
	NSVGgradientData* grad = (NSVGgradientData*)NANOSVG_malloc(sizeof(NSVGgradientData));
	if (grad == NULL) return;
	memset(grad, 0, sizeof(NSVGgradientData));
	grad->units = NSVG_OBJECT_SPACE;
	grad->type = type;
	if (grad->type == NSVG_PAINT_LINEAR_GRADIENT) {
		grad->linear.x1 = nsvg__coord(0.0f, NSVG_UNITS_PERCENT);
		grad->linear.y1 = nsvg__coord(0.0f, NSVG_UNITS_PERCENT);
		grad->linear.x2 = nsvg__coord(100.0f, NSVG_UNITS_PERCENT);
		grad->linear.y2 = nsvg__coord(0.0f, NSVG_UNITS_PERCENT);
	} else if (grad->type == NSVG_PAINT_RADIAL_GRADIENT) {
		grad->radial.cx = nsvg__coord(50.0f, NSVG_UNITS_PERCENT);
		grad->radial.cy = nsvg__coord(50.0f, NSVG_UNITS_PERCENT);
		grad->radial.r = nsvg__coord(50.0f, NSVG_UNITS_PERCENT);
	}

	nsvg__xformIdentity(grad->xform);

	for (i = 0; attr[i]; i += 2) {
		if (strcmp(attr[i], "id") == 0) {
			strncpy(grad->id, attr[i+1], 63);
			grad->id[63] = '\0';
		} else if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) {
			if (strcmp(attr[i], "gradientUnits") == 0) {
				if (strcmp(attr[i+1], "objectBoundingBox") == 0)
					grad->units = NSVG_OBJECT_SPACE;
				else
					grad->units = NSVG_USER_SPACE;
			} else if (strcmp(attr[i], "gradientTransform") == 0) {
				nsvg__parseTransform(grad->xform, attr[i + 1]);
			} else if (strcmp(attr[i], "cx") == 0) {
				grad->radial.cx = nsvg__parseCoordinateRaw(attr[i + 1]);
			} else if (strcmp(attr[i], "cy") == 0) {
				grad->radial.cy = nsvg__parseCoordinateRaw(attr[i + 1]);
			} else if (strcmp(attr[i], "r") == 0) {
				grad->radial.r = nsvg__parseCoordinateRaw(attr[i + 1]);
			} else if (strcmp(attr[i], "fx") == 0) {
				grad->radial.fx = nsvg__parseCoordinateRaw(attr[i + 1]);
			} else if (strcmp(attr[i], "fy") == 0) {
				grad->radial.fy = nsvg__parseCoordinateRaw(attr[i + 1]);
			} else if (strcmp(attr[i], "x1") == 0) {
				grad->linear.x1 = nsvg__parseCoordinateRaw(attr[i + 1]);
			} else if (strcmp(attr[i], "y1") == 0) {
				grad->linear.y1 = nsvg__parseCoordinateRaw(attr[i + 1]);
			} else if (strcmp(attr[i], "x2") == 0) {
				grad->linear.x2 = nsvg__parseCoordinateRaw(attr[i + 1]);
			} else if (strcmp(attr[i], "y2") == 0) {
				grad->linear.y2 = nsvg__parseCoordinateRaw(attr[i + 1]);
			} else if (strcmp(attr[i], "spreadMethod") == 0) {
				if (strcmp(attr[i+1], "pad") == 0)
					grad->spread = NSVG_SPREAD_PAD;
				else if (strcmp(attr[i+1], "reflect") == 0)
					grad->spread = NSVG_SPREAD_REFLECT;
				else if (strcmp(attr[i+1], "repeat") == 0)
					grad->spread = NSVG_SPREAD_REPEAT;
			} else if (strcmp(attr[i], "xlink:href") == 0) {
				const char *href = attr[i+1];
				strncpy(grad->ref, href+1, 62);
				grad->ref[62] = '\0';
			}
		}
	}

	grad->next = p->gradients;
	p->gradients = grad;
}

static void nsvg__parseGradientStop(NSVGparser* p, const char** attr)
{
	NSVGattrib* curAttr = nsvg__getAttr(p);
	NSVGgradientData* grad;
	NSVGgradientStop* stop;
	int i, idx;

	curAttr->stopOffset = 0;
	curAttr->stopColor = 0;
	curAttr->stopOpacity = 1.0f;

	for (i = 0; attr[i]; i += 2) {
		nsvg__parseAttr(p, attr[i], attr[i + 1]);
	}

	// Add stop to the last gradient.
	grad = p->gradients;
	if (grad == NULL) return;

	grad->nstops++;
	grad->stops = (NSVGgradientStop*)NANOSVG_realloc(grad->stops, sizeof(NSVGgradientStop)*grad->nstops);
	if (grad->stops == NULL) return;

	// Insert
	idx = grad->nstops-1;
	for (i = 0; i < grad->nstops-1; i++) {
		if (curAttr->stopOffset < grad->stops[i].offset) {
			idx = i;
			break;
		}
	}
	if (idx != grad->nstops-1) {
		for (i = grad->nstops-1; i > idx; i--)
			grad->stops[i] = grad->stops[i-1];
	}

	stop = &grad->stops[idx];
	stop->color = curAttr->stopColor;
	stop->color |= (unsigned int)(curAttr->stopOpacity*255) << 24;
	stop->offset = curAttr->stopOffset;
}

static void nsvg__startElement(void* ud, const char* el, const char** attr)
{
	NSVGparser* p = (NSVGparser*)ud;

	if (p->defsFlag) {
		// Skip everything but gradients in defs
		if (strcmp(el, "linearGradient") == 0) {
			nsvg__parseGradient(p, attr, NSVG_PAINT_LINEAR_GRADIENT);
		} else if (strcmp(el, "radialGradient") == 0) {
			nsvg__parseGradient(p, attr, NSVG_PAINT_RADIAL_GRADIENT);
		} else if (strcmp(el, "stop") == 0) {
			nsvg__parseGradientStop(p, attr);
		}
		return;
	}

	if (strcmp(el, "g") == 0) {
		nsvg__pushAttr(p);
		nsvg__parseAttribs(p, attr);
	} else if (strcmp(el, "path") == 0) {
		if (p->pathFlag)	// Do not allow nested paths.
			return;
		nsvg__pushAttr(p);
		nsvg__parsePath(p, attr);
		nsvg__popAttr(p);
	} else if (strcmp(el, "rect") == 0) {
		nsvg__pushAttr(p);
		nsvg__parseRect(p, attr);
		nsvg__popAttr(p);
	} else if (strcmp(el, "circle") == 0) {
		nsvg__pushAttr(p);
		nsvg__parseCircle(p, attr);
		nsvg__popAttr(p);
	} else if (strcmp(el, "ellipse") == 0) {
		nsvg__pushAttr(p);
		nsvg__parseEllipse(p, attr);
		nsvg__popAttr(p);
	} else if (strcmp(el, "line") == 0)  {
		nsvg__pushAttr(p);
		nsvg__parseLine(p, attr);
		nsvg__popAttr(p);
	} else if (strcmp(el, "polyline") == 0)  {
		nsvg__pushAttr(p);
		nsvg__parsePoly(p, attr, 0);
		nsvg__popAttr(p);
	} else if (strcmp(el, "polygon") == 0)  {
		nsvg__pushAttr(p);
		nsvg__parsePoly(p, attr, 1);
		nsvg__popAttr(p);
	} else  if (strcmp(el, "linearGradient") == 0) {
		nsvg__parseGradient(p, attr, NSVG_PAINT_LINEAR_GRADIENT);
	} else if (strcmp(el, "radialGradient") == 0) {
		nsvg__parseGradient(p, attr, NSVG_PAINT_RADIAL_GRADIENT);
	} else if (strcmp(el, "stop") == 0) {
		nsvg__parseGradientStop(p, attr);
	} else if (strcmp(el, "defs") == 0) {
		p->defsFlag = 1;
	} else if (strcmp(el, "svg") == 0) {
		nsvg__parseSVG(p, attr);
	} else if (strcmp(el, "style") == 0) {
		p->styleFlag = 1;
	}
}

static void nsvg__endElement(void* ud, const char* el)
{
	NSVGparser* p = (NSVGparser*)ud;

	if (strcmp(el, "g") == 0) {
		nsvg__popAttr(p);
	} else if (strcmp(el, "path") == 0) {
		p->pathFlag = 0;
	} else if (strcmp(el, "defs") == 0) {
		p->defsFlag = 0;
	} else if (strcmp(el, "style") == 0) {
		p->styleFlag = 0;
	}
}

static char *nsvg__strndup(const char *s, size_t n)
{
	char *result;
	size_t len = strlen(s);

	if (n < len)
		len = n;

	result = (char*)NANOSVG_malloc(len+1);
	if (!result)
		return 0;

	result[len] = '\0';
	return (char *)memcpy(result, s, len);
}

static void nsvg__content(void* ud, const char* s)
{
	NSVGparser* p = (NSVGparser*)ud;
	if (p->styleFlag) {

		int state = 0;
		const char* start = NULL;		
		while (*s) {
			char c = *s;
			if (nsvg__isspace(c) || c == '{') {
				if (state == 1) {
					NSVGstyles* next = p->styles;

					p->styles = (NSVGstyles*)malloc(sizeof(NSVGstyles));
					p->styles->next = next;
					p->styles->name = nsvg__strndup(start, (size_t)(s - start));
					start = s + 1;
					state = 2;
				}				
			} else if (state == 2 && c == '}') {
				p->styles->description = nsvg__strndup(start, (size_t)(s - start));
				state = 0;
			}
			else if (state == 0) {
				start = s;
				state = 1;
			}  
			s++;
		/*
			if (*s == '{' && state == NSVG_XML_CONTENT) {
				// Start of a tag
				*s++ = '\0';
				nsvg__parseContent(mark, contentCb, ud);
				mark = s;
				state = NSVG_XML_TAG;
			}
			else if (*s == '>' && state == NSVG_XML_TAG) {
				// Start of a content or new tag.
				*s++ = '\0';
				nsvg__parseElement(mark, startelCb, endelCb, ud);
				mark = s;
				state = NSVG_XML_CONTENT;
			}
			else {
				s++;
			}
		*/
		}

	}
}

static void nsvg__imageBounds(NSVGparser* p, float* bounds)
{
	NSVGshape* shape;
	shape = p->image->shapes;
	if (shape == NULL) {
		bounds[0] = bounds[1] = bounds[2] = bounds[3] = 0.0;
		return;
	}
	bounds[0] = shape->bounds[0];
	bounds[1] = shape->bounds[1];
	bounds[2] = shape->bounds[2];
	bounds[3] = shape->bounds[3];
	for (shape = shape->next; shape != NULL; shape = shape->next) {
		bounds[0] = nsvg__minf(bounds[0], shape->bounds[0]);
		bounds[1] = nsvg__minf(bounds[1], shape->bounds[1]);
		bounds[2] = nsvg__maxf(bounds[2], shape->bounds[2]);
		bounds[3] = nsvg__maxf(bounds[3], shape->bounds[3]);
	}
}

static float nsvg__viewAlign(float content, float container, int type)
{
	if (type == NSVG_ALIGN_MIN)
		return 0;
	else if (type == NSVG_ALIGN_MAX)
		return container - content;
	// mid
	return (container - content) * 0.5f;
}

static void nsvg__scaleGradient(NSVGgradient* grad, float tx, float ty, float sx, float sy)
{
	float t[6];
	nsvg__xformSetTranslation(t, tx, ty);
	nsvg__xformMultiply (grad->xform, t);

	nsvg__xformSetScale(t, sx, sy);
	nsvg__xformMultiply (grad->xform, t);
}

static void nsvg__scaleToViewbox(NSVGparser* p, const char* units)
{
	NSVGshape* shape;
	NSVGpath* path;
	float tx, ty, sx, sy, us, bounds[4], t[6], avgs;
	int i;
	float* pt;

	// Guess image size if not set completely.
	nsvg__imageBounds(p, bounds);

	if (p->viewWidth == 0) {
		if (p->image->width > 0) {
			p->viewWidth = p->image->width;
		} else {
			p->viewMinx = bounds[0];
			p->viewWidth = bounds[2] - bounds[0];
		}
	}
	if (p->viewHeight == 0) {
		if (p->image->height > 0) {
			p->viewHeight = p->image->height;
		} else {
			p->viewMiny = bounds[1];
			p->viewHeight = bounds[3] - bounds[1];
		}
	}
	if (p->image->width == 0)
		p->image->width = p->viewWidth;
	if (p->image->height == 0)
		p->image->height = p->viewHeight;

	tx = -p->viewMinx;
	ty = -p->viewMiny;
	sx = p->viewWidth > 0 ? p->image->width / p->viewWidth : 0;
	sy = p->viewHeight > 0 ? p->image->height / p->viewHeight : 0;
	// Unit scaling
	us = 1.0f / nsvg__convertToPixels(p, nsvg__coord(1.0f, nsvg__parseUnits(units)), 0.0f, 1.0f);

	// Fix aspect ratio
	if (p->alignType == NSVG_ALIGN_MEET) {
		// fit whole image into viewbox
		sx = sy = nsvg__minf(sx, sy);
		tx += nsvg__viewAlign(p->viewWidth*sx, p->image->width, p->alignX) / sx;
		ty += nsvg__viewAlign(p->viewHeight*sy, p->image->height, p->alignY) / sy;
	} else if (p->alignType == NSVG_ALIGN_SLICE) {
		// fill whole viewbox with image
		sx = sy = nsvg__maxf(sx, sy);
		tx += nsvg__viewAlign(p->viewWidth*sx, p->image->width, p->alignX) / sx;
		ty += nsvg__viewAlign(p->viewHeight*sy, p->image->height, p->alignY) / sy;
	}

	// Transform
	sx *= us;
	sy *= us;
	avgs = (sx+sy) / 2.0f;
	for (shape = p->image->shapes; shape != NULL; shape = shape->next) {
		shape->bounds[0] = (shape->bounds[0] + tx) * sx;
		shape->bounds[1] = (shape->bounds[1] + ty) * sy;
		shape->bounds[2] = (shape->bounds[2] + tx) * sx;
		shape->bounds[3] = (shape->bounds[3] + ty) * sy;
		for (path = shape->paths; path != NULL; path = path->next) {
			path->bounds[0] = (path->bounds[0] + tx) * sx;
			path->bounds[1] = (path->bounds[1] + ty) * sy;
			path->bounds[2] = (path->bounds[2] + tx) * sx;
			path->bounds[3] = (path->bounds[3] + ty) * sy;
			for (i =0; i < path->npts; i++) {
				pt = &path->pts[i*2];
				pt[0] = (pt[0] + tx) * sx;
				pt[1] = (pt[1] + ty) * sy;
			}
		}

		if (shape->fill.type == NSVG_PAINT_LINEAR_GRADIENT || shape->fill.type == NSVG_PAINT_RADIAL_GRADIENT) {
			nsvg__scaleGradient(shape->fill.gradient, tx,ty, sx,sy);
			memcpy(t, shape->fill.gradient->xform, sizeof(float)*6);
			nsvg__xformInverse(shape->fill.gradient->xform, t);
		}
		if (shape->stroke.type == NSVG_PAINT_LINEAR_GRADIENT || shape->stroke.type == NSVG_PAINT_RADIAL_GRADIENT) {
			nsvg__scaleGradient(shape->stroke.gradient, tx,ty, sx,sy);
			memcpy(t, shape->stroke.gradient->xform, sizeof(float)*6);
			nsvg__xformInverse(shape->stroke.gradient->xform, t);
		}

		shape->strokeWidth *= avgs;
		shape->strokeDashOffset *= avgs;
		for (i = 0; i < shape->strokeDashCount; i++)
			shape->strokeDashArray[i] *= avgs;
	}
}

NANOSVG_SCOPE
NSVGimage* nsvgParse(char* input, const char* units, float dpi)
{
	NSVGparser* p;
	NSVGimage* ret = 0;

	p = nsvg__createParser();
	if (p == NULL) {
		return NULL;
	}
	p->dpi = dpi;

	nsvg__parseXML(input, nsvg__startElement, nsvg__endElement, nsvg__content, p);

	// Scale to viewBox
	nsvg__scaleToViewbox(p, units);

	ret = p->image;
	p->image = NULL;

	nsvg__deleteParser(p);

	return ret;
}

NANOSVG_SCOPE
NSVGimage* nsvgParseFromFile(const char* filename, const char* units, float dpi)
{
	FILE* fp = NULL;
	size_t size;
	char* data = NULL;
	NSVGimage* image = NULL;

	fp = fopen(filename, "rb");
	if (!fp) goto error;
	fseek(fp, 0, SEEK_END);
	size = ftell(fp);
	fseek(fp, 0, SEEK_SET);
	data = (char*)NANOSVG_malloc(size+1);
	if (data == NULL) goto error;
	if (fread(data, 1, size, fp) != size) goto error;
	data[size] = '\0';	// Must be null terminated.
	fclose(fp);
	image = nsvgParse(data, units, dpi);
	NANOSVG_free(data);

	return image;

error:
	if (fp) fclose(fp);
	if (data) NANOSVG_free(data);
	if (image) nsvgDelete(image);
	return NULL;
}

NANOSVG_SCOPE
void nsvgDelete(NSVGimage* image)
{
	NSVGshape *snext, *shape;
	if (image == NULL) return;
	shape = image->shapes;
	while (shape != NULL) {
		snext = shape->next;
		nsvg__deletePaths(shape->paths);
		nsvg__deletePaint(&shape->fill);
		nsvg__deletePaint(&shape->stroke);
		NANOSVG_free(shape);
		shape = snext;
	}
	NANOSVG_free(image);
}

#endif

Added generic/nanosvgrast.h.






















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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/*
 * Copyright (c) 2013-14 Mikko Mononen [email protected]
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 *
 * The polygon rasterization is heavily based on stb_truetype rasterizer
 * by Sean Barrett - http://nothings.org/
 *
 */

#ifndef NANOSVGRAST_H
#define NANOSVGRAST_H

#ifdef __cplusplus
extern "C" {
#endif

#ifndef NANOSVG_SCOPE
#define NANOSVG_SCOPE
#endif

#ifndef NANOSVG_malloc
#define NANOSVG_malloc malloc
#endif

#ifndef NANOSVG_realloc
#define NANOSVG_realloc realloc
#endif

#ifndef NANOSVG_free
#define NANOSVG_free free
#endif

typedef struct NSVGrasterizer NSVGrasterizer;

/* Example Usage:
	// Load SVG
	struct SNVGImage* image = nsvgParseFromFile("test.svg.");

	// Create rasterizer (can be used to render multiple images).
	struct NSVGrasterizer* rast = nsvgCreateRasterizer();
	// Allocate memory for image
	unsigned char* img = malloc(w*h*4);
	// Rasterize
	nsvgRasterize(rast, image, 0,0,1, img, w, h, w*4);
*/

// Allocated rasterizer context.
NANOSVG_SCOPE NSVGrasterizer* nsvgCreateRasterizer();

// Rasterizes SVG image, returns RGBA image (non-premultiplied alpha)
//   r - pointer to rasterizer context
//   image - pointer to image to rasterize
//   tx,ty - image offset (applied after scaling)
//   scale - image scale
//   dst - pointer to destination image data, 4 bytes per pixel (RGBA)
//   w - width of the image to render
//   h - height of the image to render
//   stride - number of bytes per scaleline in the destination buffer
NANOSVG_SCOPE void nsvgRasterize(NSVGrasterizer* r,
				   NSVGimage* image, float tx, float ty, float scale,
				   unsigned char* dst, int w, int h, int stride);

// Deletes rasterizer context.
NANOSVG_SCOPE void nsvgDeleteRasterizer(NSVGrasterizer*);


#ifdef __cplusplus
}
#endif

#endif // NANOSVGRAST_H

#ifdef NANOSVGRAST_IMPLEMENTATION

#include <math.h>

#define NSVG__SUBSAMPLES	5
#define NSVG__FIXSHIFT		10
#define NSVG__FIX			(1 << NSVG__FIXSHIFT)
#define NSVG__FIXMASK		(NSVG__FIX-1)
#define NSVG__MEMPAGE_SIZE	1024

typedef struct NSVGedge {
	float x0,y0, x1,y1;
	int dir;
	struct NSVGedge* next;
} NSVGedge;

typedef struct NSVGpoint {
	float x, y;
	float dx, dy;
	float len;
	float dmx, dmy;
	unsigned char flags;
} NSVGpoint;

typedef struct NSVGactiveEdge {
	int x,dx;
	float ey;
	int dir;
	struct NSVGactiveEdge *next;
} NSVGactiveEdge;

typedef struct NSVGmemPage {
	unsigned char mem[NSVG__MEMPAGE_SIZE];
	int size;
	struct NSVGmemPage* next;
} NSVGmemPage;

typedef struct NSVGcachedPaint {
	char type;
	char spread;
	float xform[6];
	unsigned int colors[256];
} NSVGcachedPaint;

struct NSVGrasterizer
{
	float px, py;

	float tessTol;
	float distTol;

	NSVGedge* edges;
	int nedges;
	int cedges;

	NSVGpoint* points;
	int npoints;
	int cpoints;

	NSVGpoint* points2;
	int npoints2;
	int cpoints2;

	NSVGactiveEdge* freelist;
	NSVGmemPage* pages;
	NSVGmemPage* curpage;

	unsigned char* scanline;
	int cscanline;

	unsigned char* bitmap;
	int width, height, stride;
};

NANOSVG_SCOPE
NSVGrasterizer* nsvgCreateRasterizer()
{
	NSVGrasterizer* r = (NSVGrasterizer*)NANOSVG_malloc(sizeof(NSVGrasterizer));
	if (r == NULL) goto error;
	memset(r, 0, sizeof(NSVGrasterizer));

	r->tessTol = 0.25f;
	r->distTol = 0.01f;

	return r;

error:
	nsvgDeleteRasterizer(r);
	return NULL;
}

NANOSVG_SCOPE
void nsvgDeleteRasterizer(NSVGrasterizer* r)
{
	NSVGmemPage* p;

	if (r == NULL) return;

	p = r->pages;
	while (p != NULL) {
		NSVGmemPage* next = p->next;
		NANOSVG_free(p);
		p = next;
	}

	if (r->edges) NANOSVG_free(r->edges);
	if (r->points) NANOSVG_free(r->points);
	if (r->points2) NANOSVG_free(r->points2);
	if (r->scanline) NANOSVG_free(r->scanline);

	NANOSVG_free(r);
}

static NSVGmemPage* nsvg__nextPage(NSVGrasterizer* r, NSVGmemPage* cur)
{
	NSVGmemPage *newp;

	// If using existing chain, return the next page in chain
	if (cur != NULL && cur->next != NULL) {
		return cur->next;
	}

	// Alloc new page
	newp = (NSVGmemPage*)NANOSVG_malloc(sizeof(NSVGmemPage));
	if (newp == NULL) return NULL;
	memset(newp, 0, sizeof(NSVGmemPage));

	// Add to linked list
	if (cur != NULL)
		cur->next = newp;
	else
		r->pages = newp;

	return newp;
}

static void nsvg__resetPool(NSVGrasterizer* r)
{
	NSVGmemPage* p = r->pages;
	while (p != NULL) {
		p->size = 0;
		p = p->next;
	}
	r->curpage = r->pages;
}

static unsigned char* nsvg__alloc(NSVGrasterizer* r, int size)
{
	unsigned char* buf;
	if (size > NSVG__MEMPAGE_SIZE) return NULL;
	if (r->curpage == NULL || r->curpage->size+size > NSVG__MEMPAGE_SIZE) {
		r->curpage = nsvg__nextPage(r, r->curpage);
	}
	buf = &r->curpage->mem[r->curpage->size];
	r->curpage->size += size;
	return buf;
}

static int nsvg__ptEquals(float x1, float y1, float x2, float y2, float tol)
{
	float dx = x2 - x1;
	float dy = y2 - y1;
	return dx*dx + dy*dy < tol*tol;
}

static void nsvg__addPathPoint(NSVGrasterizer* r, float x, float y, int flags)
{
	NSVGpoint* pt;

	if (r->npoints > 0) {
		pt = &r->points[r->npoints-1];
		if (nsvg__ptEquals(pt->x,pt->y, x,y, r->distTol)) {
			pt->flags = (unsigned char)(pt->flags | flags);
			return;
		}
	}

	if (r->npoints+1 > r->cpoints) {
		r->cpoints = r->cpoints > 0 ? r->cpoints * 2 : 64;
		r->points = (NSVGpoint*)NANOSVG_realloc(r->points, sizeof(NSVGpoint) * r->cpoints);
		if (r->points == NULL) return;
	}

	pt = &r->points[r->npoints];
	pt->x = x;
	pt->y = y;
	pt->flags = (unsigned char)flags;
	r->npoints++;
}

static void nsvg__appendPathPoint(NSVGrasterizer* r, NSVGpoint pt)
{
	if (r->npoints+1 > r->cpoints) {
		r->cpoints = r->cpoints > 0 ? r->cpoints * 2 : 64;
		r->points = (NSVGpoint*)NANOSVG_realloc(r->points, sizeof(NSVGpoint) * r->cpoints);
		if (r->points == NULL) return;
	}
	r->points[r->npoints] = pt;
	r->npoints++;
}

static void nsvg__duplicatePoints(NSVGrasterizer* r)
{
	if (r->npoints > r->cpoints2) {
		r->cpoints2 = r->npoints;
		r->points2 = (NSVGpoint*)NANOSVG_realloc(r->points2, sizeof(NSVGpoint) * r->cpoints2);
		if (r->points2 == NULL) return;
	}

	memcpy(r->points2, r->points, sizeof(NSVGpoint) * r->npoints);
	r->npoints2 = r->npoints;
}

static void nsvg__addEdge(NSVGrasterizer* r, float x0, float y0, float x1, float y1)
{
	NSVGedge* e;

	// Skip horizontal edges
	if (y0 == y1)
		return;

	if (r->nedges+1 > r->cedges) {
		r->cedges = r->cedges > 0 ? r->cedges * 2 : 64;
		r->edges = (NSVGedge*)NANOSVG_realloc(r->edges, sizeof(NSVGedge) * r->cedges);
		if (r->edges == NULL) return;
	}

	e = &r->edges[r->nedges];
	r->nedges++;

	if (y0 < y1) {
		e->x0 = x0;
		e->y0 = y0;
		e->x1 = x1;
		e->y1 = y1;
		e->dir = 1;
	} else {
		e->x0 = x1;
		e->y0 = y1;
		e->x1 = x0;
		e->y1 = y0;
		e->dir = -1;
	}
}

static float nsvg__normalize(float *x, float* y)
{
	float d = sqrtf((*x)*(*x) + (*y)*(*y));
	if (d > 1e-6f) {
		float id = 1.0f / d;
		*x *= id;
		*y *= id;
	}
	return d;
}

static float nsvg__absf(float x) { return x < 0 ? -x : x; }

static void nsvg__flattenCubicBez(NSVGrasterizer* r,
								  float x1, float y1, float x2, float y2,
								  float x3, float y3, float x4, float y4,
								  int level, int type)
{
	float x12,y12,x23,y23,x34,y34,x123,y123,x234,y234,x1234,y1234;
	float dx,dy,d2,d3;

	if (level > 10) return;

	x12 = (x1+x2)*0.5f;
	y12 = (y1+y2)*0.5f;
	x23 = (x2+x3)*0.5f;
	y23 = (y2+y3)*0.5f;
	x34 = (x3+x4)*0.5f;
	y34 = (y3+y4)*0.5f;
	x123 = (x12+x23)*0.5f;
	y123 = (y12+y23)*0.5f;

	dx = x4 - x1;
	dy = y4 - y1;
	d2 = nsvg__absf(((x2 - x4) * dy - (y2 - y4) * dx));
	d3 = nsvg__absf(((x3 - x4) * dy - (y3 - y4) * dx));

	if ((d2 + d3)*(d2 + d3) < r->tessTol * (dx*dx + dy*dy)) {
		nsvg__addPathPoint(r, x4, y4, type);
		return;
	}

	x234 = (x23+x34)*0.5f;
	y234 = (y23+y34)*0.5f;
	x1234 = (x123+x234)*0.5f;
	y1234 = (y123+y234)*0.5f;

	nsvg__flattenCubicBez(r, x1,y1, x12,y12, x123,y123, x1234,y1234, level+1, 0);
	nsvg__flattenCubicBez(r, x1234,y1234, x234,y234, x34,y34, x4,y4, level+1, type);
}

static void nsvg__flattenShape(NSVGrasterizer* r, NSVGshape* shape, float scale)
{
	int i, j;
	NSVGpath* path;

	for (path = shape->paths; path != NULL; path = path->next) {
		r->npoints = 0;
		// Flatten path
		nsvg__addPathPoint(r, path->pts[0]*scale, path->pts[1]*scale, 0);
		for (i = 0; i < path->npts-1; i += 3) {
			float* p = &path->pts[i*2];
			nsvg__flattenCubicBez(r, p[0]*scale,p[1]*scale, p[2]*scale,p[3]*scale, p[4]*scale,p[5]*scale, p[6]*scale,p[7]*scale, 0, 0);
		}
		// Close path
		nsvg__addPathPoint(r, path->pts[0]*scale, path->pts[1]*scale, 0);
		// Build edges
		for (i = 0, j = r->npoints-1; i < r->npoints; j = i++)
			nsvg__addEdge(r, r->points[j].x, r->points[j].y, r->points[i].x, r->points[i].y);
	}
}

enum NSVGpointFlags
{
	NSVG_PT_CORNER = 0x01,
	NSVG_PT_BEVEL = 0x02,
	NSVG_PT_LEFT = 0x04
};

static void nsvg__initClosed(NSVGpoint* left, NSVGpoint* right, NSVGpoint* p0, NSVGpoint* p1, float lineWidth)
{
	float w = lineWidth * 0.5f;
	float dx = p1->x - p0->x;
	float dy = p1->y - p0->y;
	float len = nsvg__normalize(&dx, &dy);
	float px = p0->x + dx*len*0.5f, py = p0->y + dy*len*0.5f;
	float dlx = dy, dly = -dx;
	float lx = px - dlx*w, ly = py - dly*w;
	float rx = px + dlx*w, ry = py + dly*w;
	left->x = lx; left->y = ly;
	right->x = rx; right->y = ry;
}

static void nsvg__buttCap(NSVGrasterizer* r, NSVGpoint* left, NSVGpoint* right, NSVGpoint* p, float dx, float dy, float lineWidth, int connect)
{
	float w = lineWidth * 0.5f;
	float px = p->x, py = p->y;
	float dlx = dy, dly = -dx;
	float lx = px - dlx*w, ly = py - dly*w;
	float rx = px + dlx*w, ry = py + dly*w;

	nsvg__addEdge(r, lx, ly, rx, ry);

	if (connect) {
		nsvg__addEdge(r, left->x, left->y, lx, ly);
		nsvg__addEdge(r, rx, ry, right->x, right->y);
	}
	left->x = lx; left->y = ly;
	right->x = rx; right->y = ry;
}

static void nsvg__squareCap(NSVGrasterizer* r, NSVGpoint* left, NSVGpoint* right, NSVGpoint* p, float dx, float dy, float lineWidth, int connect)
{
	float w = lineWidth * 0.5f;
	float px = p->x - dx*w, py = p->y - dy*w;
	float dlx = dy, dly = -dx;
	float lx = px - dlx*w, ly = py - dly*w;
	float rx = px + dlx*w, ry = py + dly*w;

	nsvg__addEdge(r, lx, ly, rx, ry);

	if (connect) {
		nsvg__addEdge(r, left->x, left->y, lx, ly);
		nsvg__addEdge(r, rx, ry, right->x, right->y);
	}
	left->x = lx; left->y = ly;
	right->x = rx; right->y = ry;
}

#ifndef NSVG_PI
#define NSVG_PI (3.14159265358979323846264338327f)
#endif

static void nsvg__roundCap(NSVGrasterizer* r, NSVGpoint* left, NSVGpoint* right, NSVGpoint* p, float dx, float dy, float lineWidth, int ncap, int connect)
{
	int i;
	float w = lineWidth * 0.5f;
	float px = p->x, py = p->y;
	float dlx = dy, dly = -dx;
	float lx = 0, ly = 0, rx = 0, ry = 0, prevx = 0, prevy = 0;

	for (i = 0; i < ncap; i++) {
		float a = (float)i/(float)(ncap-1)*NSVG_PI;
		float ax = cosf(a) * w, ay = sinf(a) * w;
		float x = px - dlx*ax - dx*ay;
		float y = py - dly*ax - dy*ay;

		if (i > 0)
			nsvg__addEdge(r, prevx, prevy, x, y);

		prevx = x;
		prevy = y;

		if (i == 0) {
			lx = x; ly = y;
		} else if (i == ncap-1) {
			rx = x; ry = y;
		}
	}

	if (connect) {
		nsvg__addEdge(r, left->x, left->y, lx, ly);
		nsvg__addEdge(r, rx, ry, right->x, right->y);
	}

	left->x = lx; left->y = ly;
	right->x = rx; right->y = ry;
}

static void nsvg__bevelJoin(NSVGrasterizer* r, NSVGpoint* left, NSVGpoint* right, NSVGpoint* p0, NSVGpoint* p1, float lineWidth)
{
	float w = lineWidth * 0.5f;
	float dlx0 = p0->dy, dly0 = -p0->dx;
	float dlx1 = p1->dy, dly1 = -p1->dx;
	float lx0 = p1->x - (dlx0 * w), ly0 = p1->y - (dly0 * w);
	float rx0 = p1->x + (dlx0 * w), ry0 = p1->y + (dly0 * w);
	float lx1 = p1->x - (dlx1 * w), ly1 = p1->y - (dly1 * w);
	float rx1 = p1->x + (dlx1 * w), ry1 = p1->y + (dly1 * w);

	nsvg__addEdge(r, lx0, ly0, left->x, left->y);
	nsvg__addEdge(r, lx1, ly1, lx0, ly0);

	nsvg__addEdge(r, right->x, right->y, rx0, ry0);
	nsvg__addEdge(r, rx0, ry0, rx1, ry1);

	left->x = lx1; left->y = ly1;
	right->x = rx1; right->y = ry1;
}

static void nsvg__miterJoin(NSVGrasterizer* r, NSVGpoint* left, NSVGpoint* right, NSVGpoint* p0, NSVGpoint* p1, float lineWidth)
{
	float w = lineWidth * 0.5f;
	float dlx0 = p0->dy, dly0 = -p0->dx;
	float dlx1 = p1->dy, dly1 = -p1->dx;
	float lx0, rx0, lx1, rx1;
	float ly0, ry0, ly1, ry1;

	if (p1->flags & NSVG_PT_LEFT) {
		lx0 = lx1 = p1->x - p1->dmx * w;
		ly0 = ly1 = p1->y - p1->dmy * w;
		nsvg__addEdge(r, lx1, ly1, left->x, left->y);

		rx0 = p1->x + (dlx0 * w);
		ry0 = p1->y + (dly0 * w);
		rx1 = p1->x + (dlx1 * w);
		ry1 = p1->y + (dly1 * w);
		nsvg__addEdge(r, right->x, right->y, rx0, ry0);
		nsvg__addEdge(r, rx0, ry0, rx1, ry1);
	} else {
		lx0 = p1->x - (dlx0 * w);
		ly0 = p1->y - (dly0 * w);
		lx1 = p1->x - (dlx1 * w);
		ly1 = p1->y - (dly1 * w);
		nsvg__addEdge(r, lx0, ly0, left->x, left->y);
		nsvg__addEdge(r, lx1, ly1, lx0, ly0);

		rx0 = rx1 = p1->x + p1->dmx * w;
		ry0 = ry1 = p1->y + p1->dmy * w;
		nsvg__addEdge(r, right->x, right->y, rx1, ry1);
	}

	left->x = lx1; left->y = ly1;
	right->x = rx1; right->y = ry1;
}

static void nsvg__roundJoin(NSVGrasterizer* r, NSVGpoint* left, NSVGpoint* right, NSVGpoint* p0, NSVGpoint* p1, float lineWidth, int ncap)
{
	int i, n;
	float w = lineWidth * 0.5f;
	float dlx0 = p0->dy, dly0 = -p0->dx;
	float dlx1 = p1->dy, dly1 = -p1->dx;
	float a0 = atan2f(dly0, dlx0);
	float a1 = atan2f(dly1, dlx1);
	float da = a1 - a0;
	float lx, ly, rx, ry;

	if (da < NSVG_PI) da += NSVG_PI*2;
	if (da > NSVG_PI) da -= NSVG_PI*2;

	n = (int)ceilf((nsvg__absf(da) / NSVG_PI) * (float)ncap);
	if (n < 2) n = 2;
	if (n > ncap) n = ncap;

	lx = left->x;
	ly = left->y;
	rx = right->x;
	ry = right->y;

	for (i = 0; i < n; i++) {
		float u = (float)i/(float)(n-1);
		float a = a0 + u*da;
		float ax = cosf(a) * w, ay = sinf(a) * w;
		float lx1 = p1->x - ax, ly1 = p1->y - ay;
		float rx1 = p1->x + ax, ry1 = p1->y + ay;

		nsvg__addEdge(r, lx1, ly1, lx, ly);
		nsvg__addEdge(r, rx, ry, rx1, ry1);

		lx = lx1; ly = ly1;
		rx = rx1; ry = ry1;
	}

	left->x = lx; left->y = ly;
	right->x = rx; right->y = ry;
}

static void nsvg__straightJoin(NSVGrasterizer* r, NSVGpoint* left, NSVGpoint* right, NSVGpoint* p1, float lineWidth)
{
	float w = lineWidth * 0.5f;
	float lx = p1->x - (p1->dmx * w), ly = p1->y - (p1->dmy * w);
	float rx = p1->x + (p1->dmx * w), ry = p1->y + (p1->dmy * w);

	nsvg__addEdge(r, lx, ly, left->x, left->y);
	nsvg__addEdge(r, right->x, right->y, rx, ry);

	left->x = lx; left->y = ly;
	right->x = rx; right->y = ry;
}

static int nsvg__curveDivs(float r, float arc, float tol)
{
	float da = acosf(r / (r + tol)) * 2.0f;
	int divs = (int)ceilf(arc / da);
	if (divs < 2) divs = 2;
	return divs;
}

static void nsvg__expandStroke(NSVGrasterizer* r, NSVGpoint* points, int npoints, int closed, int lineJoin, int lineCap, float lineWidth)
{
	int ncap = nsvg__curveDivs(lineWidth*0.5f, NSVG_PI, r->tessTol);	// Calculate divisions per half circle.
	NSVGpoint left = {0,0,0,0,0,0,0,0}, right = {0,0,0,0,0,0,0,0}, firstLeft = {0,0,0,0,0,0,0,0}, firstRight = {0,0,0,0,0,0,0,0};
	NSVGpoint* p0, *p1;
	int j, s, e;

	// Build stroke edges
	if (closed) {
		// Looping
		p0 = &points[npoints-1];
		p1 = &points[0];
		s = 0;
		e = npoints;
	} else {
		// Add cap
		p0 = &points[0];
		p1 = &points[1];
		s = 1;
		e = npoints-1;
	}

	if (closed) {
		nsvg__initClosed(&left, &right, p0, p1, lineWidth);
		firstLeft = left;
		firstRight = right;
	} else {
		// Add cap
		float dx = p1->x - p0->x;
		float dy = p1->y - p0->y;
		nsvg__normalize(&dx, &dy);
		if (lineCap == NSVG_CAP_BUTT)
			nsvg__buttCap(r, &left, &right, p0, dx, dy, lineWidth, 0);
		else if (lineCap == NSVG_CAP_SQUARE)
			nsvg__squareCap(r, &left, &right, p0, dx, dy, lineWidth, 0);
		else if (lineCap == NSVG_CAP_ROUND)
			nsvg__roundCap(r, &left, &right, p0, dx, dy, lineWidth, ncap, 0);
	}

	for (j = s; j < e; ++j) {
		if (p1->flags & NSVG_PT_CORNER) {
			if (lineJoin == NSVG_JOIN_ROUND)
				nsvg__roundJoin(r, &left, &right, p0, p1, lineWidth, ncap);
			else if (lineJoin == NSVG_JOIN_BEVEL || (p1->flags & NSVG_PT_BEVEL))
				nsvg__bevelJoin(r, &left, &right, p0, p1, lineWidth);
			else
				nsvg__miterJoin(r, &left, &right, p0, p1, lineWidth);
		} else {
			nsvg__straightJoin(r, &left, &right, p1, lineWidth);
		}
		p0 = p1++;
	}

	if (closed) {
		// Loop it
		nsvg__addEdge(r, firstLeft.x, firstLeft.y, left.x, left.y);
		nsvg__addEdge(r, right.x, right.y, firstRight.x, firstRight.y);
	} else {
		// Add cap
		float dx = p1->x - p0->x;
		float dy = p1->y - p0->y;
		nsvg__normalize(&dx, &dy);
		if (lineCap == NSVG_CAP_BUTT)
			nsvg__buttCap(r, &right, &left, p1, -dx, -dy, lineWidth, 1);
		else if (lineCap == NSVG_CAP_SQUARE)
			nsvg__squareCap(r, &right, &left, p1, -dx, -dy, lineWidth, 1);
		else if (lineCap == NSVG_CAP_ROUND)
			nsvg__roundCap(r, &right, &left, p1, -dx, -dy, lineWidth, ncap, 1);
	}
}

static void nsvg__prepareStroke(NSVGrasterizer* r, float miterLimit, int lineJoin)
{
	int i, j;
	NSVGpoint* p0, *p1;

	p0 = &r->points[r->npoints-1];
	p1 = &r->points[0];
	for (i = 0; i < r->npoints; i++) {
		// Calculate segment direction and length
		p0->dx = p1->x - p0->x;
		p0->dy = p1->y - p0->y;
		p0->len = nsvg__normalize(&p0->dx, &p0->dy);
		// Advance
		p0 = p1++;
	}

	// calculate joins
	p0 = &r->points[r->npoints-1];
	p1 = &r->points[0];
	for (j = 0; j < r->npoints; j++) {
		float dlx0, dly0, dlx1, dly1, dmr2, cross;
		dlx0 = p0->dy;
		dly0 = -p0->dx;
		dlx1 = p1->dy;
		dly1 = -p1->dx;
		// Calculate extrusions
		p1->dmx = (dlx0 + dlx1) * 0.5f;
		p1->dmy = (dly0 + dly1) * 0.5f;
		dmr2 = p1->dmx*p1->dmx + p1->dmy*p1->dmy;
		if (dmr2 > 0.000001f) {
			float s2 = 1.0f / dmr2;
			if (s2 > 600.0f) {
				s2 = 600.0f;
			}
			p1->dmx *= s2;
			p1->dmy *= s2;
		}

		// Clear flags, but keep the corner.
		p1->flags = (p1->flags & NSVG_PT_CORNER) ? NSVG_PT_CORNER : 0;

		// Keep track of left turns.
		cross = p1->dx * p0->dy - p0->dx * p1->dy;
		if (cross > 0.0f)
			p1->flags |= NSVG_PT_LEFT;

		// Check to see if the corner needs to be beveled.
		if (p1->flags & NSVG_PT_CORNER) {
			if ((dmr2 * miterLimit*miterLimit) < 1.0f || lineJoin == NSVG_JOIN_BEVEL || lineJoin == NSVG_JOIN_ROUND) {
				p1->flags |= NSVG_PT_BEVEL;
			}
		}

		p0 = p1++;
	}
}

static void nsvg__flattenShapeStroke(NSVGrasterizer* r, NSVGshape* shape, float scale)
{
	int i, j, closed;
	NSVGpath* path;
	NSVGpoint* p0, *p1;
	float miterLimit = shape->miterLimit;
	int lineJoin = shape->strokeLineJoin;
	int lineCap = shape->strokeLineCap;
	float lineWidth = shape->strokeWidth * scale;

	for (path = shape->paths; path != NULL; path = path->next) {
		// Flatten path
		r->npoints = 0;
		nsvg__addPathPoint(r, path->pts[0]*scale, path->pts[1]*scale, NSVG_PT_CORNER);
		for (i = 0; i < path->npts-1; i += 3) {
			float* p = &path->pts[i*2];
			nsvg__flattenCubicBez(r, p[0]*scale,p[1]*scale, p[2]*scale,p[3]*scale, p[4]*scale,p[5]*scale, p[6]*scale,p[7]*scale, 0, NSVG_PT_CORNER);
		}
		if (r->npoints < 2)
			continue;

		closed = path->closed;

		// If the first and last points are the same, remove the last, mark as closed path.
		p0 = &r->points[r->npoints-1];
		p1 = &r->points[0];
		if (nsvg__ptEquals(p0->x,p0->y, p1->x,p1->y, r->distTol)) {
			r->npoints--;
			p0 = &r->points[r->npoints-1];
			closed = 1;
		}

		if (shape->strokeDashCount > 0) {
			int idash = 0, dashState = 1;
			float totalDist = 0, dashLen, allDashLen, dashOffset;
			NSVGpoint cur;

			if (closed)
				nsvg__appendPathPoint(r, r->points[0]);

			// Duplicate points -> points2.
			nsvg__duplicatePoints(r);

			r->npoints = 0;
 			cur = r->points2[0];
			nsvg__appendPathPoint(r, cur);

			// Figure out dash offset.
			allDashLen = 0;
			for (j = 0; j < shape->strokeDashCount; j++)
				allDashLen += shape->strokeDashArray[j];
			if (shape->strokeDashCount & 1)
				allDashLen *= 2.0f;
			// Find location inside pattern
			dashOffset = fmodf(shape->strokeDashOffset, allDashLen);
			if (dashOffset < 0.0f)
				dashOffset += allDashLen;

			while (dashOffset > shape->strokeDashArray[idash]) {
				dashOffset -= shape->strokeDashArray[idash];
				idash = (idash + 1) % shape->strokeDashCount;
			}
			dashLen = (shape->strokeDashArray[idash] - dashOffset) * scale;

			for (j = 1; j < r->npoints2; ) {
				float dx = r->points2[j].x - cur.x;
				float dy = r->points2[j].y - cur.y;
				float dist = sqrtf(dx*dx + dy*dy);

				if ((totalDist + dist) > dashLen) {
					// Calculate intermediate point
					float d = (dashLen - totalDist) / dist;
					float x = cur.x + dx * d;
					float y = cur.y + dy * d;
					nsvg__addPathPoint(r, x, y, NSVG_PT_CORNER);

					// Stroke
					if (r->npoints > 1 && dashState) {
						nsvg__prepareStroke(r, miterLimit, lineJoin);
						nsvg__expandStroke(r, r->points, r->npoints, 0, lineJoin, lineCap, lineWidth);
					}
					// Advance dash pattern
					dashState = !dashState;
					idash = (idash+1) % shape->strokeDashCount;
					dashLen = shape->strokeDashArray[idash] * scale;
					// Restart
					cur.x = x;
					cur.y = y;
					cur.flags = NSVG_PT_CORNER;
					totalDist = 0.0f;
					r->npoints = 0;
					nsvg__appendPathPoint(r, cur);
				} else {
					totalDist += dist;
					cur = r->points2[j];
					nsvg__appendPathPoint(r, cur);
					j++;
				}
			}
			// Stroke any leftover path
			if (r->npoints > 1 && dashState)
				nsvg__expandStroke(r, r->points, r->npoints, 0, lineJoin, lineCap, lineWidth);
		} else {
			nsvg__prepareStroke(r, miterLimit, lineJoin);
			nsvg__expandStroke(r, r->points, r->npoints, closed, lineJoin, lineCap, lineWidth);
		}
	}
}

static int nsvg__cmpEdge(const void *p, const void *q)
{
	const NSVGedge* a = (const NSVGedge*)p;
	const NSVGedge* b = (const NSVGedge*)q;

	if (a->y0 < b->y0) return -1;
	if (a->y0 > b->y0) return  1;
	return 0;
}


static NSVGactiveEdge* nsvg__addActive(NSVGrasterizer* r, NSVGedge* e, float startPoint)
{
	 NSVGactiveEdge* z;
	float dxdy;

	if (r->freelist != NULL) {
		// Restore from freelist.
		z = r->freelist;
		r->freelist = z->next;
	} else {
		// Alloc new edge.
		z = (NSVGactiveEdge*)nsvg__alloc(r, sizeof(NSVGactiveEdge));
		if (z == NULL) return NULL;
	}

	dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
//	STBTT_assert(e->y0 <= start_point);
	// round dx down to avoid going too far
	if (dxdy < 0)
		z->dx = (int)(-floorf(NSVG__FIX * -dxdy));
	else
		z->dx = (int)floorf(NSVG__FIX * dxdy);
	z->x = (int)floorf(NSVG__FIX * (e->x0 + dxdy * (startPoint - e->y0)));
//	z->x -= off_x * FIX;
	z->ey = e->y1;
	z->next = 0;
	z->dir = e->dir;

	return z;
}

static void nsvg__freeActive(NSVGrasterizer* r, NSVGactiveEdge* z)
{
	z->next = r->freelist;
	r->freelist = z;
}

static void nsvg__fillScanline(unsigned char* scanline, int len, int x0, int x1, int maxWeight, int* xmin, int* xmax)
{
	int i = x0 >> NSVG__FIXSHIFT;
	int j = x1 >> NSVG__FIXSHIFT;
	if (i < *xmin) *xmin = i;
	if (j > *xmax) *xmax = j;
	if (i < len && j >= 0) {
		if (i == j) {
			// x0,x1 are the same pixel, so compute combined coverage
			scanline[i] = (unsigned char)(scanline[i] + ((x1 - x0) * maxWeight >> NSVG__FIXSHIFT));
		} else {
			if (i >= 0) // add antialiasing for x0
				scanline[i] = (unsigned char)(scanline[i] + (((NSVG__FIX - (x0 & NSVG__FIXMASK)) * maxWeight) >> NSVG__FIXSHIFT));
			else
				i = -1; // clip

			if (j < len) // add antialiasing for x1
				scanline[j] = (unsigned char)(scanline[j] + (((x1 & NSVG__FIXMASK) * maxWeight) >> NSVG__FIXSHIFT));
			else
				j = len; // clip

			for (++i; i < j; ++i) // fill pixels between x0 and x1
				scanline[i] = (unsigned char)(scanline[i] + maxWeight);
		}
	}
}

// note: this routine clips fills that extend off the edges... ideally this
// wouldn't happen, but it could happen if the truetype glyph bounding boxes
// are wrong, or if the user supplies a too-small bitmap
static void nsvg__fillActiveEdges(unsigned char* scanline, int len, NSVGactiveEdge* e, int maxWeight, int* xmin, int* xmax, char fillRule)
{
	// non-zero winding fill
	int x0 = 0, w = 0;

	if (fillRule == NSVG_FILLRULE_NONZERO) {
		// Non-zero
		while (e != NULL) {
			if (w == 0) {
				// if we're currently at zero, we need to record the edge start point
				x0 = e->x; w += e->dir;
			} else {
				int x1 = e->x; w += e->dir;
				// if we went to zero, we need to draw
				if (w == 0)
					nsvg__fillScanline(scanline, len, x0, x1, maxWeight, xmin, xmax);
			}
			e = e->next;
		}
	} else if (fillRule == NSVG_FILLRULE_EVENODD) {
		// Even-odd
		while (e != NULL) {
			if (w == 0) {
				// if we're currently at zero, we need to record the edge start point
				x0 = e->x; w = 1;
			} else {
				int x1 = e->x; w = 0;
				nsvg__fillScanline(scanline, len, x0, x1, maxWeight, xmin, xmax);
			}
			e = e->next;
		}
	}
}

static float nsvg__clampf(float a, float mn, float mx) { return a < mn ? mn : (a > mx ? mx : a); }

static unsigned int nsvg__RGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a)
{
	return (r) | (g << 8) | (b << 16) | (a << 24);
}

static unsigned int nsvg__lerpRGBA(unsigned int c0, unsigned int c1, float u)
{
	int iu = (int)(nsvg__clampf(u, 0.0f, 1.0f) * 256.0f);
	int r = (((c0) & 0xff)*(256-iu) + (((c1) & 0xff)*iu)) >> 8;
	int g = (((c0>>8) & 0xff)*(256-iu) + (((c1>>8) & 0xff)*iu)) >> 8;
	int b = (((c0>>16) & 0xff)*(256-iu) + (((c1>>16) & 0xff)*iu)) >> 8;
	int a = (((c0>>24) & 0xff)*(256-iu) + (((c1>>24) & 0xff)*iu)) >> 8;
	return nsvg__RGBA((unsigned char)r, (unsigned char)g, (unsigned char)b, (unsigned char)a);
}

static unsigned int nsvg__applyOpacity(unsigned int c, float u)
{
	int iu = (int)(nsvg__clampf(u, 0.0f, 1.0f) * 256.0f);
	int r = (c) & 0xff;
	int g = (c>>8) & 0xff;
	int b = (c>>16) & 0xff;
	int a = (((c>>24) & 0xff)*iu) >> 8;
	return nsvg__RGBA((unsigned char)r, (unsigned char)g, (unsigned char)b, (unsigned char)a);
}

static inline int nsvg__div255(int x)
{
    return ((x+1) * 257) >> 16;
}

static void nsvg__scanlineSolid(unsigned char* dst, int count, unsigned char* cover, int x, int y,
								float tx, float ty, float scale, NSVGcachedPaint* cache)
{

	if (cache->type == NSVG_PAINT_COLOR) {
		int i, cr, cg, cb, ca;
		cr = cache->colors[0] & 0xff;
		cg = (cache->colors[0] >> 8) & 0xff;
		cb = (cache->colors[0] >> 16) & 0xff;
		ca = (cache->colors[0] >> 24) & 0xff;

		for (i = 0; i < count; i++) {
			int r,g,b;
			int a = nsvg__div255((int)cover[0] * ca);
			int ia = 255 - a;
			// Premultiply
			r = nsvg__div255(cr * a);
			g = nsvg__div255(cg * a);
			b = nsvg__div255(cb * a);

			// Blend over
			r += nsvg__div255(ia * (int)dst[0]);
			g += nsvg__div255(ia * (int)dst[1]);
			b += nsvg__div255(ia * (int)dst[2]);
			a += nsvg__div255(ia * (int)dst[3]);

			dst[0] = (unsigned char)r;
			dst[1] = (unsigned char)g;
			dst[2] = (unsigned char)b;
			dst[3] = (unsigned char)a;

			cover++;
			dst += 4;
		}
	} else if (cache->type == NSVG_PAINT_LINEAR_GRADIENT) {
		// TODO: spread modes.
		// TODO: plenty of opportunities to optimize.
		float fx, fy, dx, gy;
		float* t = cache->xform;
		int i, cr, cg, cb, ca;
		unsigned int c;

		fx = ((float)x - tx) / scale;
		fy = ((float)y - ty) / scale;
		dx = 1.0f / scale;

		for (i = 0; i < count; i++) {
			int r,g,b,a,ia;
			gy = fx*t[1] + fy*t[3] + t[5];
			c = cache->colors[(int)nsvg__clampf(gy*255.0f, 0, 255.0f)];
			cr = (c) & 0xff;
			cg = (c >> 8) & 0xff;
			cb = (c >> 16) & 0xff;
			ca = (c >> 24) & 0xff;

			a = nsvg__div255((int)cover[0] * ca);
			ia = 255 - a;

			// Premultiply
			r = nsvg__div255(cr * a);
			g = nsvg__div255(cg * a);
			b = nsvg__div255(cb * a);

			// Blend over
			r += nsvg__div255(ia * (int)dst[0]);
			g += nsvg__div255(ia * (int)dst[1]);
			b += nsvg__div255(ia * (int)dst[2]);
			a += nsvg__div255(ia * (int)dst[3]);

			dst[0] = (unsigned char)r;
			dst[1] = (unsigned char)g;
			dst[2] = (unsigned char)b;
			dst[3] = (unsigned char)a;

			cover++;
			dst += 4;
			fx += dx;
		}
	} else if (cache->type == NSVG_PAINT_RADIAL_GRADIENT) {
		// TODO: spread modes.
		// TODO: plenty of opportunities to optimize.
		// TODO: focus (fx,fy)
		float fx, fy, dx, gx, gy, gd;
		float* t = cache->xform;
		int i, cr, cg, cb, ca;
		unsigned int c;

		fx = ((float)x - tx) / scale;
		fy = ((float)y - ty) / scale;
		dx = 1.0f / scale;

		for (i = 0; i < count; i++) {
			int r,g,b,a,ia;
			gx = fx*t[0] + fy*t[2] + t[4];
			gy = fx*t[1] + fy*t[3] + t[5];
			gd = sqrtf(gx*gx + gy*gy);
			c = cache->colors[(int)nsvg__clampf(gd*255.0f, 0, 255.0f)];
			cr = (c) & 0xff;
			cg = (c >> 8) & 0xff;
			cb = (c >> 16) & 0xff;
			ca = (c >> 24) & 0xff;

			a = nsvg__div255((int)cover[0] * ca);
			ia = 255 - a;

			// Premultiply
			r = nsvg__div255(cr * a);
			g = nsvg__div255(cg * a);
			b = nsvg__div255(cb * a);

			// Blend over
			r += nsvg__div255(ia * (int)dst[0]);
			g += nsvg__div255(ia * (int)dst[1]);
			b += nsvg__div255(ia * (int)dst[2]);
			a += nsvg__div255(ia * (int)dst[3]);

			dst[0] = (unsigned char)r;
			dst[1] = (unsigned char)g;
			dst[2] = (unsigned char)b;
			dst[3] = (unsigned char)a;

			cover++;
			dst += 4;
			fx += dx;
		}
	}
}

static void nsvg__rasterizeSortedEdges(NSVGrasterizer *r, float tx, float ty, float scale, NSVGcachedPaint* cache, char fillRule)
{
	NSVGactiveEdge *active = NULL;
	int y, s;
	int e = 0;
	int maxWeight = (255 / NSVG__SUBSAMPLES);  // weight per vertical scanline
	int xmin, xmax;

	for (y = 0; y < r->height; y++) {
		memset(r->scanline, 0, r->width);
		xmin = r->width;
		xmax = 0;
		for (s = 0; s < NSVG__SUBSAMPLES; ++s) {
			// find center of pixel for this scanline
			float scany = (float)(y*NSVG__SUBSAMPLES + s) + 0.5f;
			NSVGactiveEdge **step = &active;

			// update all active edges;
			// remove all active edges that terminate before the center of this scanline
			while (*step) {
				NSVGactiveEdge *z = *step;
				if (z->ey <= scany) {
					*step = z->next; // delete from list
//					NSVG__assert(z->valid);
					nsvg__freeActive(r, z);
				} else {
					z->x += z->dx; // advance to position for current scanline
					step = &((*step)->next); // advance through list
				}
			}

			// resort the list if needed
			for (;;) {
				int changed = 0;
				step = &active;
				while (*step && (*step)->next) {
					if ((*step)->x > (*step)->next->x) {
						NSVGactiveEdge* t = *step;
						NSVGactiveEdge* q = t->next;
						t->next = q->next;
						q->next = t;
						*step = q;
						changed = 1;
					}
					step = &(*step)->next;
				}
				if (!changed) break;
			}

			// insert all edges that start before the center of this scanline -- omit ones that also end on this scanline
			while (e < r->nedges && r->edges[e].y0 <= scany) {
				if (r->edges[e].y1 > scany) {
					NSVGactiveEdge* z = nsvg__addActive(r, &r->edges[e], scany);
					if (z == NULL) break;
					// find insertion point
					if (active == NULL) {
						active = z;
					} else if (z->x < active->x) {
						// insert at front
						z->next = active;
						active = z;
					} else {
						// find thing to insert AFTER
						NSVGactiveEdge* p = active;
						while (p->next && p->next->x < z->x)
							p = p->next;
						// at this point, p->next->x is NOT < z->x
						z->next = p->next;
						p->next = z;
					}
				}
				e++;
			}

			// now process all active edges in non-zero fashion
			if (active != NULL)
				nsvg__fillActiveEdges(r->scanline, r->width, active, maxWeight, &xmin, &xmax, fillRule);
		}
		// Blit
		if (xmin < 0) xmin = 0;
		if (xmax > r->width-1) xmax = r->width-1;
		if (xmin <= xmax) {
			nsvg__scanlineSolid(&r->bitmap[y * r->stride] + xmin*4, xmax-xmin+1, &r->scanline[xmin], xmin, y, tx,ty, scale, cache);
		}
	}

}

static void nsvg__unpremultiplyAlpha(unsigned char* image, int w, int h, int stride)
{
	int x,y;

	// Unpremultiply
	for (y = 0; y < h; y++) {
		unsigned char *row = &image[y*stride];
		for (x = 0; x < w; x++) {
			int r = row[0], g = row[1], b = row[2], a = row[3];
			if (a != 0) {
				row[0] = (unsigned char)(r*255/a);
				row[1] = (unsigned char)(g*255/a);
				row[2] = (unsigned char)(b*255/a);
			}
			row += 4;
		}
	}

	// Defringe
	for (y = 0; y < h; y++) {
		unsigned char *row = &image[y*stride];
		for (x = 0; x < w; x++) {
			int r = 0, g = 0, b = 0, a = row[3], n = 0;
			if (a == 0) {
				if (x-1 > 0 && row[-1] != 0) {
					r += row[-4];
					g += row[-3];
					b += row[-2];
					n++;
				}
				if (x+1 < w && row[7] != 0) {
					r += row[4];
					g += row[5];
					b += row[6];
					n++;
				}
				if (y-1 > 0 && row[-stride+3] != 0) {
					r += row[-stride];
					g += row[-stride+1];
					b += row[-stride+2];
					n++;
				}
				if (y+1 < h && row[stride+3] != 0) {
					r += row[stride];
					g += row[stride+1];
					b += row[stride+2];
					n++;
				}
				if (n > 0) {
					row[0] = (unsigned char)(r/n);
					row[1] = (unsigned char)(g/n);
					row[2] = (unsigned char)(b/n);
				}
			}
			row += 4;
		}
	}
}


static void nsvg__initPaint(NSVGcachedPaint* cache, NSVGpaint* paint, float opacity)
{
	int i, j;
	NSVGgradient* grad;

	cache->type = paint->type;

	if (paint->type == NSVG_PAINT_COLOR) {
		cache->colors[0] = nsvg__applyOpacity(paint->color, opacity);
		return;
	}

	grad = paint->gradient;

	cache->spread = grad->spread;
	memcpy(cache->xform, grad->xform, sizeof(float)*6);

	if (grad->nstops == 0) {
		for (i = 0; i < 256; i++)
			cache->colors[i] = 0;
	} if (grad->nstops == 1) {
		for (i = 0; i < 256; i++)
			cache->colors[i] = nsvg__applyOpacity(grad->stops[i].color, opacity);
	} else {
		unsigned int ca, cb = 0;
		float ua, ub, du, u;
		int ia, ib, count;

		ca = nsvg__applyOpacity(grad->stops[0].color, opacity);
		ua = nsvg__clampf(grad->stops[0].offset, 0, 1);
		ub = nsvg__clampf(grad->stops[grad->nstops-1].offset, ua, 1);
		ia = (int)(ua * 255.0f);
		ib = (int)(ub * 255.0f);
		for (i = 0; i < ia; i++) {
			cache->colors[i] = ca;
		}

		for (i = 0; i < grad->nstops-1; i++) {
			ca = nsvg__applyOpacity(grad->stops[i].color, opacity);
			cb = nsvg__applyOpacity(grad->stops[i+1].color, opacity);
			ua = nsvg__clampf(grad->stops[i].offset, 0, 1);
			ub = nsvg__clampf(grad->stops[i+1].offset, 0, 1);
			ia = (int)(ua * 255.0f);
			ib = (int)(ub * 255.0f);
			count = ib - ia;
			if (count <= 0) continue;
			u = 0;
			du = 1.0f / (float)count;
			for (j = 0; j < count; j++) {
				cache->colors[ia+j] = nsvg__lerpRGBA(ca,cb,u);
				u += du;
			}
		}

		for (i = ib; i < 256; i++)
			cache->colors[i] = cb;
	}

}

/*
static void dumpEdges(NSVGrasterizer* r, const char* name)
{
	float xmin = 0, xmax = 0, ymin = 0, ymax = 0;
	NSVGedge *e = NULL;
	int i;
	if (r->nedges == 0) return;
	FILE* fp = fopen(name, "w");
	if (fp == NULL) return;

	xmin = xmax = r->edges[0].x0;
	ymin = ymax = r->edges[0].y0;
	for (i = 0; i < r->nedges; i++) {
		e = &r->edges[i];
		xmin = nsvg__minf(xmin, e->x0);
		xmin = nsvg__minf(xmin, e->x1);
		xmax = nsvg__maxf(xmax, e->x0);
		xmax = nsvg__maxf(xmax, e->x1);
		ymin = nsvg__minf(ymin, e->y0);
		ymin = nsvg__minf(ymin, e->y1);
		ymax = nsvg__maxf(ymax, e->y0);
		ymax = nsvg__maxf(ymax, e->y1);
	}

	fprintf(fp, "<svg viewBox=\"%f %f %f %f\" xmlns=\"http://www.w3.org/2000/svg\">", xmin, ymin, (xmax - xmin), (ymax - ymin));

	for (i = 0; i < r->nedges; i++) {
		e = &r->edges[i];
		fprintf(fp ,"<line x1=\"%f\" y1=\"%f\" x2=\"%f\" y2=\"%f\" style=\"stroke:#000;\" />", e->x0,e->y0, e->x1,e->y1);
	}

	for (i = 0; i < r->npoints; i++) {
		if (i+1 < r->npoints)
			fprintf(fp ,"<line x1=\"%f\" y1=\"%f\" x2=\"%f\" y2=\"%f\" style=\"stroke:#f00;\" />", r->points[i].x, r->points[i].y, r->points[i+1].x, r->points[i+1].y);
		fprintf(fp ,"<circle cx=\"%f\" cy=\"%f\" r=\"1\" style=\"fill:%s;\" />", r->points[i].x, r->points[i].y, r->points[i].flags == 0 ? "#f00" : "#0f0");
	}

	fprintf(fp, "</svg>");
	fclose(fp);
}
*/

NANOSVG_SCOPE
void nsvgRasterize(NSVGrasterizer* r,
				   NSVGimage* image, float tx, float ty, float scale,
				   unsigned char* dst, int w, int h, int stride)
{
	NSVGshape *shape = NULL;
	NSVGedge *e = NULL;
	NSVGcachedPaint cache;
	int i;

	r->bitmap = dst;
	r->width = w;
	r->height = h;
	r->stride = stride;

	if (w > r->cscanline) {
		r->cscanline = w;
		r->scanline = (unsigned char*)NANOSVG_realloc(r->scanline, w);
		if (r->scanline == NULL) return;
	}

	for (i = 0; i < h; i++)
		memset(&dst[i*stride], 0, w*4);

	for (shape = image->shapes; shape != NULL; shape = shape->next) {
		if (!(shape->flags & NSVG_FLAGS_VISIBLE))
			continue;

		if (shape->fill.type != NSVG_PAINT_NONE) {
			nsvg__resetPool(r);
			r->freelist = NULL;
			r->nedges = 0;

			nsvg__flattenShape(r, shape, scale);

			// Scale and translate edges
			for (i = 0; i < r->nedges; i++) {
				e = &r->edges[i];
				e->x0 = tx + e->x0;
				e->y0 = (ty + e->y0) * NSVG__SUBSAMPLES;
				e->x1 = tx + e->x1;
				e->y1 = (ty + e->y1) * NSVG__SUBSAMPLES;
			}

			// Rasterize edges
			qsort(r->edges, r->nedges, sizeof(NSVGedge), nsvg__cmpEdge);

			// now, traverse the scanlines and find the intersections on each scanline, use non-zero rule
			nsvg__initPaint(&cache, &shape->fill, shape->opacity);

			nsvg__rasterizeSortedEdges(r, tx,ty,scale, &cache, shape->fillRule);
		}
		if (shape->stroke.type != NSVG_PAINT_NONE && (shape->strokeWidth * scale) > 0.01f) {
			nsvg__resetPool(r);
			r->freelist = NULL;
			r->nedges = 0;

			nsvg__flattenShapeStroke(r, shape, scale);

//			dumpEdges(r, "edge.svg");

			// Scale and translate edges
			for (i = 0; i < r->nedges; i++) {
				e = &r->edges[i];
				e->x0 = tx + e->x0;
				e->y0 = (ty + e->y0) * NSVG__SUBSAMPLES;
				e->x1 = tx + e->x1;
				e->y1 = (ty + e->y1) * NSVG__SUBSAMPLES;
			}

			// Rasterize edges
			qsort(r->edges, r->nedges, sizeof(NSVGedge), nsvg__cmpEdge);

			// now, traverse the scanlines and find the intersections on each scanline, use non-zero rule
			nsvg__initPaint(&cache, &shape->stroke, shape->opacity);

			nsvg__rasterizeSortedEdges(r, tx,ty,scale, &cache, NSVG_FILLRULE_NONZERO);
		}
	}

	nsvg__unpremultiplyAlpha(dst, w, h, stride);

	r->bitmap = NULL;
	r->width = 0;
	r->height = 0;
	r->stride = 0;
}

#endif

Added generic/tkImgSVGnano.c.




















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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/*
 * tkImgSVGnano.c
 *
 *	A photo file handler for SVG files.
 *
 * Copyright (c) 2013-14 Mikko Mononen [email protected]
 * Copyright (c) 2018 Christian Gollwitzer [email protected]
 * Copyright (c) 2018 Rene Zaumseil [email protected]
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * This handler is build using the original nanosvg library files from
 * https://github.com/memononen/nanosvg and the tcl extension files from
 * https://github.com/auriocus/tksvg
 *
 */

#include "tkInt.h"
#define NANOSVG_malloc	ckalloc
#define NANOSVG_realloc	ckrealloc
#define NANOSVG_free	ckfree
#define NANOSVG_SCOPE MODULE_SCOPE
#define NANOSVG_ALL_COLOR_KEYWORDS
#define NANOSVG_IMPLEMENTATION
#include "nanosvg.h"
#define NANOSVGRAST_IMPLEMENTATION
#include "nanosvgrast.h"

/* Additional parameters to nsvgRasterize() */

typedef struct {
    double x;
    double y;
    double scale;
} RastOpts;

/*
 * Per interp cache of last NSVGimage which was matched to
 * be immediately rasterized after the match. This helps to
 * eliminate double parsing of the SVG file/string.
 */

typedef struct {
    ClientData dataOrChan;
    Tcl_DString formatString;
    NSVGimage *nsvgImage;
    RastOpts ropts;
} NSVGcache;

static int		FileMatchSVG(Tcl_Channel chan, const char *fileName,
			    Tcl_Obj *format, int *widthPtr, int *heightPtr,
			    Tcl_Interp *interp);
static int		FileReadSVG(Tcl_Interp *interp, Tcl_Channel chan,
			    const char *fileName, Tcl_Obj *format,
			    Tk_PhotoHandle imageHandle, int destX, int destY,
			    int width, int height, int srcX, int srcY);
static int		StringMatchSVG(Tcl_Obj *dataObj, Tcl_Obj *format,
			    int *widthPtr, int *heightPtr, Tcl_Interp *interp);
static int		StringReadSVG(Tcl_Interp *interp, Tcl_Obj *dataObj,
			    Tcl_Obj *format, Tk_PhotoHandle imageHandle,
			    int destX, int destY, int width, int height,
			    int srcX, int srcY);
static NSVGimage *	ParseSVGWithOptions(Tcl_Interp *interp,
			    const char *input, int length, Tcl_Obj *format,
			    RastOpts *ropts);
static int		RasterizeSVG(Tcl_Interp *interp,
			    Tk_PhotoHandle imageHandle, NSVGimage *nsvgImage,
			    int destX, int destY, int width, int height,
			    int srcX, int srcY, RastOpts *ropts);
static NSVGcache *	GetCachePtr(Tcl_Interp *interp);
static int		CacheSVG(Tcl_Interp *interp, ClientData dataOrChan,
			    Tcl_Obj *formatObj, NSVGimage *nsvgImage,
			    RastOpts *ropts);
static NSVGimage *	GetCachedSVG(Tcl_Interp *interp, ClientData dataOrChan,
			    Tcl_Obj *formatObj, RastOpts *ropts);
static void		CleanCache(Tcl_Interp *interp);
static void		FreeCache(ClientData clientData, Tcl_Interp *interp);

/*
 * The format record for the SVG nano file format:
 */

Tk_PhotoImageFormat tkImgFmtSVGnano = {
    "svg",			/* name */
    FileMatchSVG,		/* fileMatchProc */
    StringMatchSVG,		/* stringMatchProc */
    FileReadSVG,		/* fileReadProc */
    StringReadSVG,		/* stringReadProc */
    NULL,			/* fileWriteProc */
    NULL,			/* stringWriteProc */
    NULL
};

/*
 *----------------------------------------------------------------------
 *
 * FileMatchSVG --
 *
 *	This function is invoked by the photo image type to see if a file
 *	contains image data in SVG format.
 *
 * Results:
 *	The return value is >0 if the file can be successfully parsed,
 *	and 0 otherwise.
 *
 * Side effects:
 *	The file is saved in the internal cache for further use.
 *
 *----------------------------------------------------------------------
 */

static int
FileMatchSVG(
    Tcl_Channel chan,
    const char *fileName,
    Tcl_Obj *formatObj,
    int *widthPtr, int *heightPtr,
    Tcl_Interp *interp)
{
    int length;
    Tcl_Obj *dataObj = Tcl_NewObj();
    const char *data;
    RastOpts ropts;
    NSVGimage *nsvgImage;

    CleanCache(interp);
    if (Tcl_ReadChars(chan, dataObj, -1, 0) == -1) {
	/* in case of an error reading the file */
	Tcl_DecrRefCount(dataObj);
	return 0;
    }
    data = Tcl_GetStringFromObj(dataObj, &length);
    nsvgImage = ParseSVGWithOptions(interp, data, length, formatObj, &ropts);
    Tcl_DecrRefCount(dataObj);
    if (nsvgImage != NULL) {
	*widthPtr = (int) ceil(nsvgImage->width * ropts.scale);
	*heightPtr = (int) ceil(nsvgImage->height * ropts.scale);
        if ((*widthPtr <= 0) || (*heightPtr <= 0)) {
            nsvgDelete(nsvgImage);
            return 0;
        }
	if (!CacheSVG(interp, chan, formatObj, nsvgImage, &ropts)) {
	    nsvgDelete(nsvgImage);
	}
	return 1;
    }
    return 0;
}

/*
 *----------------------------------------------------------------------
 *
 * FileReadSVG --
 *
 *	This function is called by the photo image type to read SVG format
 *	data from a file and write it into a given photo image.
 *
 * Results:
 *	A standard TCL completion code. If TCL_ERROR is returned then an error
 *	message is left in the interp's result.
 *
 * Side effects:
 *	The access position in file f is changed, and new data is added to the
 *	image given by imageHandle.
 *
 *----------------------------------------------------------------------
 */

static int
FileReadSVG(
    Tcl_Interp *interp,
    Tcl_Channel chan,
    const char *fileName,
    Tcl_Obj *formatObj,
    Tk_PhotoHandle imageHandle,
    int destX, int destY,
    int width, int height,
    int srcX, int srcY)
{
    int length;
    const char *data;
    RastOpts ropts;
    NSVGimage *nsvgImage = GetCachedSVG(interp, chan, formatObj, &ropts);

    if (nsvgImage == NULL) {
        Tcl_Obj *dataObj = Tcl_NewObj();

	if (Tcl_ReadChars(chan, dataObj, -1, 0) == -1) {
	    /* in case of an error reading the file */
	    Tcl_DecrRefCount(dataObj);
	    Tcl_SetObjResult(interp, Tcl_NewStringObj("read error", -1));
	    Tcl_SetErrorCode(interp, "TK", "IMAGE", "SVG", "READ_ERROR", NULL);
	    return TCL_ERROR;
	}
        data = Tcl_GetStringFromObj(dataObj, &length);
	nsvgImage = ParseSVGWithOptions(interp, data, length, formatObj,
			    &ropts);
	Tcl_DecrRefCount(dataObj);
	if (nsvgImage == NULL) {
	    return TCL_ERROR;
	}
    }
    return RasterizeSVG(interp, imageHandle, nsvgImage, destX, destY,
		width, height, srcX, srcY, &ropts);
}

/*
 *----------------------------------------------------------------------
 *
 * StringMatchSVG --
 *
 *	This function is invoked by the photo image type to see if a string
 *	contains image data in SVG format.
 *
 * Results:
 *	The return value is >0 if the file can be successfully parsed,
 *	and 0 otherwise.
 *
 * Side effects:
 *	The file is saved in the internal cache for further use.
 *
 *----------------------------------------------------------------------
 */

static int
StringMatchSVG(
    Tcl_Obj *dataObj,
    Tcl_Obj *formatObj,
    int *widthPtr, int *heightPtr,
    Tcl_Interp *interp)
{
    int length;
    const char *data;
    RastOpts ropts;
    NSVGimage *nsvgImage;

    CleanCache(interp);
    data = Tcl_GetStringFromObj(dataObj, &length);
    nsvgImage = ParseSVGWithOptions(interp, data, length, formatObj, &ropts);
    if (nsvgImage != NULL) {
	*widthPtr = (int) ceil(nsvgImage->width * ropts.scale);
	*heightPtr = (int) ceil(nsvgImage->height * ropts.scale);
        if ((*widthPtr <= 0) || (*heightPtr <= 0)) {
            nsvgDelete(nsvgImage);
            return 0;
        }
	if (!CacheSVG(interp, dataObj, formatObj, nsvgImage, &ropts)) {
	    nsvgDelete(nsvgImage);
	}
	return 1;
    }
    return 0;
}

/*
 *----------------------------------------------------------------------
 *
 * StringReadSVG --
 *
 *	This function is called by the photo image type to read SVG format
 *	data from a string and write it into a given photo image.
 *
 * Results:
 *	A standard TCL completion code. If TCL_ERROR is returned then an error
 *	message is left in the interp's result.
 *
 * Side effects:
 *	New data is added to the image given by imageHandle.
 *
 *----------------------------------------------------------------------
 */

static int
StringReadSVG(
    Tcl_Interp *interp,
    Tcl_Obj *dataObj,
    Tcl_Obj *formatObj,
    Tk_PhotoHandle imageHandle,
    int destX, int destY,
    int width, int height,
    int srcX, int srcY)
{
    int length;
    const char *data;
    RastOpts ropts;
    NSVGimage *nsvgImage = GetCachedSVG(interp, dataObj, formatObj, &ropts);

    if (nsvgImage == NULL) {
        data = Tcl_GetStringFromObj(dataObj, &length);
	nsvgImage = ParseSVGWithOptions(interp, data, length, formatObj,
			    &ropts);
    }
    if (nsvgImage == NULL) {
	return TCL_ERROR;
    }
    return RasterizeSVG(interp, imageHandle, nsvgImage, destX, destY,
		width, height, srcX, srcY, &ropts);
}

/*
 *----------------------------------------------------------------------
 *
 * ParseSVGWithOptions --
 *
 *	This function is called to parse the given input string as SVG.
 *
 * Results:
 *	Return a newly create NSVGimage on success, and NULL otherwise.
 *
 * Side effects:
 *
 *----------------------------------------------------------------------
 */

static NSVGimage *
ParseSVGWithOptions(
    Tcl_Interp *interp,
    const char *input,
    int length,
    Tcl_Obj *formatObj,
    RastOpts *ropts)
{
    Tcl_Obj **objv = NULL;
    int objc = 0;
    double dpi = 96.0;
    char unit[3], *p;
    char *inputCopy = NULL;
    NSVGimage *nsvgImage;
    static const char *const fmtOptions[] = {
        "-dpi", "-scale", "-unit", NULL
    };
    enum fmtOptions {
	OPT_DPI, OPT_SCALE, OPT_UNIT
    };

    /*
     * The parser destroys the original input string,
     * therefore first duplicate.
     */

    inputCopy = attemptckalloc(length+1);
    if (inputCopy == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("cannot alloc data buffer", -1));
	Tcl_SetErrorCode(interp, "TK", "IMAGE", "SVG", "OUT_OF_MEMORY", NULL);
	goto error;
    }
    memcpy(inputCopy, input, length);
    inputCopy[length] = '\0';

    /*
     * Process elements of format specification as a list.
     */

    strcpy(unit, "px");
    ropts->x = ropts->y = 0.0;
    ropts->scale = 1.0;
    if ((formatObj != NULL) &&
	    Tcl_ListObjGetElements(interp, formatObj, &objc, &objv) != TCL_OK) {
        goto error;
    }
    for (; objc > 0 ; objc--, objv++) {
	int optIndex;

	/*
	 * Ignore the "svg" part of the format specification.
	 */

	if (!strcasecmp(Tcl_GetString(objv[0]), "svg")) {
	    continue;
	}

	if (Tcl_GetIndexFromObjStruct(interp, objv[0], fmtOptions,
		sizeof(char *), "option", 0, &optIndex) == TCL_ERROR) {
	    goto error;
	}

	if (objc < 2) {
	    ckfree(inputCopy);
	    inputCopy = NULL;
	    Tcl_WrongNumArgs(interp, 1, objv, "value");
	    goto error;
	}

	objc--;
	objv++;

	switch ((enum fmtOptions) optIndex) {
	case OPT_DPI:
	    if (Tcl_GetDoubleFromObj(interp, objv[0], &dpi) == TCL_ERROR) {
	        goto error;
	    }
	    if (dpi < 0.0) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"-dpi value must be positive", -1));
		Tcl_SetErrorCode(interp, "TK", "IMAGE", "SVG", "BAD_DPI",
			NULL);
		goto error;
	    }
	    break;
	case OPT_SCALE:
	    if (Tcl_GetDoubleFromObj(interp, objv[0], &ropts->scale) ==
		TCL_ERROR) {
	        goto error;
	    }
	    if (ropts->scale <= 0.0) {
		Tcl_SetObjResult(interp, Tcl_NewStringObj(
			"-scale value must be positive", -1));
		Tcl_SetErrorCode(interp, "TK", "IMAGE", "SVG", "BAD_SCALE",
			NULL);
		goto error;
	    }
	    break;
	case OPT_UNIT:
	    p = Tcl_GetString(objv[0]);
	    if ((p != NULL) && (p[0])) {
	        strncpy(unit, p, 3);
		unit[2] = '\0';
	    }
	    break;
	}
    }

    nsvgImage = nsvgParse(inputCopy, unit, (float) dpi);
    if (nsvgImage == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("cannot parse SVG image", -1));
	Tcl_SetErrorCode(interp, "TK", "IMAGE", "SVG", "PARSE_ERROR", NULL);
	goto error;
    }
    ckfree(inputCopy);
    return nsvgImage;

error:
    if (inputCopy != NULL) {
        ckfree(inputCopy);
    }
    return NULL;
}

/*
 *----------------------------------------------------------------------
 *
 * RasterizeSVG --
 *
 *	This function is called to rasterize the given nsvgImage and
 *	fill the imageHandle with data.
 *
 * Results:
 *	A standard TCL completion code. If TCL_ERROR is returned then an error
 *	message is left in the interp's result.
 *
 *
 * Side effects:
 *	On error the given nsvgImage will be deleted.
 *
 *----------------------------------------------------------------------
 */

static int
RasterizeSVG(
    Tcl_Interp *interp,
    Tk_PhotoHandle imageHandle,
    NSVGimage *nsvgImage,
    int destX, int destY,
    int width, int height,
    int srcX, int srcY,
    RastOpts *ropts)
{
    int w, h, c;
    NSVGrasterizer *rast;
    unsigned char *imgData;
    Tk_PhotoImageBlock svgblock;

    w = (int) ceil(nsvgImage->width * ropts->scale);
    h = (int) ceil(nsvgImage->height * ropts->scale);
    rast = nsvgCreateRasterizer();
    if (rast == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("cannot initialize rasterizer", -1));
	Tcl_SetErrorCode(interp, "TK", "IMAGE", "SVG", "RASTERIZER_ERROR",
		NULL);
	goto cleanAST;
    }
    imgData = attemptckalloc(w * h *4);
    if (imgData == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("cannot alloc image buffer", -1));
	Tcl_SetErrorCode(interp, "TK", "IMAGE", "SVG", "OUT_OF_MEMORY", NULL);
	goto cleanRAST;
    }
    nsvgRasterize(rast, nsvgImage, (float) ropts->x, (float) ropts->y,
	    (float) ropts->scale, imgData, w, h, w * 4);
    /* transfer the data to a photo block */
    svgblock.pixelPtr = imgData;
    svgblock.width = w;
    svgblock.height = h;
    svgblock.pitch = w * 4;
    svgblock.pixelSize = 4;
    for (c = 0; c <= 3; c++) {
	svgblock.offset[c] = c;
    }
    if (Tk_PhotoExpand(interp, imageHandle,
		destX + width, destY + height) != TCL_OK) {
	goto cleanRAST;
    }
    if (Tk_PhotoPutBlock(interp, imageHandle, &svgblock, destX, destY,
		width, height, TK_PHOTO_COMPOSITE_SET) != TCL_OK) {
	goto cleanimg;
    }
    ckfree(imgData);
    nsvgDeleteRasterizer(rast);
    nsvgDelete(nsvgImage);
    return TCL_OK;

cleanimg:
    ckfree(imgData);

cleanRAST:
    nsvgDeleteRasterizer(rast);

cleanAST:
    nsvgDelete(nsvgImage);
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * GetCachePtr --
 *
 *	This function is called to get the per interpreter used
 *	svg image cache.
 *
 * Results:
 * 	Return a pointer to the used cache.
 *
 * Side effects:
 *	Initialize the cache on the first call.
 *
 *----------------------------------------------------------------------
 */

static NSVGcache *
GetCachePtr(
    Tcl_Interp *interp
) {
    NSVGcache *cachePtr = Tcl_GetAssocData(interp, "tksvgnano", NULL);
    if (cachePtr == NULL) {
	cachePtr = ckalloc(sizeof(NSVGcache));
	cachePtr->dataOrChan = NULL;
	Tcl_DStringInit(&cachePtr->formatString);
	cachePtr->nsvgImage = NULL;
	Tcl_SetAssocData(interp, "tksvgnano", FreeCache, cachePtr);
    }
    return cachePtr;
}

/*
 *----------------------------------------------------------------------
 *
 * CacheSVG --
 *
 *	Add the given svg image informations to the cache for further usage.
 *
 * Results:
 *	Return 1 on success, and 0 otherwise.
 *
 * Side effects:
 *
 *----------------------------------------------------------------------
 */

static int
CacheSVG(
    Tcl_Interp *interp,
    ClientData dataOrChan,
    Tcl_Obj *formatObj,
    NSVGimage *nsvgImage,
    RastOpts *ropts)
{
    int length;
    const char *data;
    NSVGcache *cachePtr = GetCachePtr(interp);

    if (cachePtr != NULL) {
        cachePtr->dataOrChan = dataOrChan;
	if (formatObj != NULL) {
	    data = Tcl_GetStringFromObj(formatObj, &length);
	    Tcl_DStringAppend(&cachePtr->formatString, data, length);
	}
	cachePtr->nsvgImage = nsvgImage;
	cachePtr->ropts = *ropts;
	return 1;
    }
    return 0;
}

/*
 *----------------------------------------------------------------------
 *
 * GetCachedSVG --
 *
 *	Try to get the NSVGimage from the internal cache.
 *
 * Results:
 *	Return the found NSVGimage on success, and NULL otherwise.
 *
 * Side effects:
 *	Calls the CleanCache() function.
 *
 *----------------------------------------------------------------------
 */

static NSVGimage *
GetCachedSVG(
    Tcl_Interp *interp,
    ClientData dataOrChan,
    Tcl_Obj *formatObj,
    RastOpts *ropts)
{
    int length;
    const char *data;
    NSVGcache *cachePtr = GetCachePtr(interp);
    NSVGimage *nsvgImage = NULL;

    if ((cachePtr != NULL) && (cachePtr->nsvgImage != NULL) &&
	(cachePtr->dataOrChan == dataOrChan)) {
        if (formatObj != NULL) {
	    data = Tcl_GetStringFromObj(formatObj, &length);
	    if (strcmp(data, Tcl_DStringValue(&cachePtr->formatString)) == 0) {
	        nsvgImage = cachePtr->nsvgImage;
		*ropts = cachePtr->ropts;
		cachePtr->nsvgImage = NULL;
	    }
	} else if (Tcl_DStringLength(&cachePtr->formatString) == 0) {
	    nsvgImage = cachePtr->nsvgImage;
	    *ropts = cachePtr->ropts;
	    cachePtr->nsvgImage = NULL;
	}
    }
    CleanCache(interp);
    return nsvgImage;
}

/*
 *----------------------------------------------------------------------
 *
 * CleanCache --
 *
 *	Reset the cache and delete the saved image in it.
 *
 * Results:
 *
 * Side effects:
 *
 *----------------------------------------------------------------------
 */

static void
CleanCache(Tcl_Interp *interp)
{
    NSVGcache *cachePtr = GetCachePtr(interp);

    if (cachePtr != NULL) {
        cachePtr->dataOrChan = NULL;
        Tcl_DStringSetLength(&cachePtr->formatString, 0);
	if (cachePtr->nsvgImage != NULL) {
	    nsvgDelete(cachePtr->nsvgImage);
	    cachePtr->nsvgImage = NULL;
	}
    }
}

/*
 *----------------------------------------------------------------------
 *
 * FreeCache --
 *
 *	This function is called to clean up the internal cache data.
 *
 * Results:
 *
 * Side effects:
 *	Existing image data in the cache and the cache will be deleted.
 *
 *----------------------------------------------------------------------
 */

static void
FreeCache(ClientData clientData, Tcl_Interp *interp)
{
    NSVGcache *cachePtr = clientData;

    Tcl_DStringFree(&cachePtr->formatString);
    if (cachePtr->nsvgImage != NULL) {
        nsvgDelete(cachePtr->nsvgImage);
    }
    ckfree(cachePtr);
}

Changes to generic/tkInt.h.

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MODULE_SCOPE const Tk_SmoothMethod tkBezierSmoothMethod;
MODULE_SCOPE Tk_ImageType	tkBitmapImageType;
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtGIF;
MODULE_SCOPE void		(*tkHandleEventProc) (XEvent* eventPtr);
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtDefault;
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtPNG;
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtPPM;

MODULE_SCOPE TkMainInfo		*tkMainWindowList;
MODULE_SCOPE Tk_ImageType	tkPhotoImageType;
MODULE_SCOPE Tcl_HashTable	tkPredefBitmapTable;

MODULE_SCOPE const char *const tkWebColors[20];

/*






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MODULE_SCOPE const Tk_SmoothMethod tkBezierSmoothMethod;
MODULE_SCOPE Tk_ImageType	tkBitmapImageType;
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtGIF;
MODULE_SCOPE void		(*tkHandleEventProc) (XEvent* eventPtr);
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtDefault;
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtPNG;
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtPPM;
MODULE_SCOPE Tk_PhotoImageFormat tkImgFmtSVGnano;
MODULE_SCOPE TkMainInfo		*tkMainWindowList;
MODULE_SCOPE Tk_ImageType	tkPhotoImageType;
MODULE_SCOPE Tcl_HashTable	tkPredefBitmapTable;

MODULE_SCOPE const char *const tkWebColors[20];

/*

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	 * Create built-in photo image formats.
	 */

        Tk_CreatePhotoImageFormat(&tkImgFmtDefault);
	Tk_CreatePhotoImageFormat(&tkImgFmtGIF);
	Tk_CreatePhotoImageFormat(&tkImgFmtPNG);
	Tk_CreatePhotoImageFormat(&tkImgFmtPPM);

    }

    if ((parent != NULL) && (screenName != NULL) && (screenName[0] == '\0')) {
	dispPtr = ((TkWindow *) parent)->dispPtr;
	screenId = Tk_ScreenNumber(parent);
    } else {
	dispPtr = GetScreen(interp, screenName, &screenId);






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	 * Create built-in photo image formats.
	 */

        Tk_CreatePhotoImageFormat(&tkImgFmtDefault);
	Tk_CreatePhotoImageFormat(&tkImgFmtGIF);
	Tk_CreatePhotoImageFormat(&tkImgFmtPNG);
	Tk_CreatePhotoImageFormat(&tkImgFmtPPM);
	Tk_CreatePhotoImageFormat(&tkImgFmtSVGnano);
    }

    if ((parent != NULL) && (screenName != NULL) && (screenName[0] == '\0')) {
	dispPtr = ((TkWindow *) parent)->dispPtr;
	screenId = Tk_ScreenNumber(parent);
    } else {
	dispPtr = GetScreen(interp, screenName, &screenId);

Added tests/imgSVGnano.test.


























































































































































































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# This file is a Tcl script to test out the code in tkImgSVGnano.c, which reads
# and write SVG-format image files for photo widgets. The files is organized
# in the standard fashion for Tcl tests.
#
# Copyright (c) 2018 Rene Zaumseil
# All rights reserved.

package require tcltest 2.2
namespace import ::tcltest::*
eval tcltest::configure $argv
tcltest::loadTestedCommands
imageInit

namespace eval svgnano {
    variable data
    set data(plus) {<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100">
<path fill="none" stroke="#000000" d="M0 0 h16 v16 h-16 z"/>
<path fill="none" stroke="#000000" d="M8 4 v 8 M4 8 h 8"/>
<circle fill="yellow" stroke="red" cx="10" cy="80" r="10" />
<ellipse fill="none" stroke="blue" stroke-width="3" cx="60" cy="60" rx="10" ry="20" />
<line x1="10" y1="90" x2="50" y2="99"/>
<rect fill="none" stroke="green"  x="20" y="20" width="60" height="50" rx="3" ry="3"/>
<polyline fill="red" stroke="purple" points="80,10 90,20 85,40"/>
<polygon fill ="yellow" points="80,80 70,85 90,90"/>
</svg>}
    set data(bad) {<svg xmlns="http://www.w3.org/2000/svg" width="0" height="0:w
">
</svg>}

test imgSVGnano-1.1 {reading simple image} -setup {
    catch {rename foo ""}
} -body {
    image create photo foo -data $data(plus)
    list [image width foo] [image height foo]
} -cleanup {
    rename foo ""
} -result {100 100}

test imgSVGnano-1.2 {simple image with options} -setup {
    catch {rename foo ""}
} -body {
    image create photo foo -data $data(plus) -format {svg -dpi 100 -scale 3}
    list [image width foo] [image height foo]
} -cleanup {
    rename foo ""
} -result {300 300}

# test on crash found by Koen Danckaert
test imgSVGnano-1.3 {reformat image options} -setup {
    catch {rename foo ""}
} -body {
    image create photo foo -data $data(plus)
    catch {foo configure -format {svg -scale}}
    list {}
} -cleanup {
    rename foo ""
} -result {{}}

test imgSVGnano-1.4 {image options} -setup {
    catch {rename foo ""}
} -body {
    image create photo foo -data $data(plus)
    foo configure -format {svg -scale 2}
    foo configure -format {svg -unit pt}
    foo configure -format {svg -unit mm}
    foo configure -format {svg -unit cm}
    foo configure -format {svg -unit in}
    foo configure -format {svg -unit px}
    foo configure -format {svg -dpi 600}
    list [image width foo] [image height foo]
} -cleanup {
    rename foo ""
} -result {100 100}


test imgSVGnano-2.1 {reading a bad image} -body {
    image create photo foo -format svg -data $data(bad)
} -returnCodes error -result {couldn't recognize image data}
test imgSVGnano-2.2 {using bad option} -body {
    image create photo -data $data(plus) -format {svg -scale 0}
} -returnCodes error -result {couldn't recognize image data}

};# end of namespace svgnano

namespace delete svgnano
imageFinish
cleanupTests
return

# Local Variables:
# mode: tcl
# fill-column: 78
# End:

Changes to unix/Makefile.in.

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	tkPanedWindow.o tkScale.o tkScrollbar.o

CANV_OBJS = tkCanvas.o tkCanvArc.o tkCanvBmap.o tkCanvImg.o \
	tkCanvLine.o tkCanvPoly.o tkCanvPs.o tkCanvText.o \
	tkCanvUtil.o tkCanvWind.o tkRectOval.o tkTrig.o

IMAGE_OBJS = tkImage.o tkImgBmap.o tkImgGIF.o tkImgPNG.o tkImgPPM.o \
	tkImgPhoto.o tkImgPhInstance.o tkImgListFormat.o

TEXT_OBJS = tkText.o tkTextBTree.o tkTextDisp.o tkTextImage.o tkTextIndex.o \
	tkTextMark.o tkTextTag.o tkTextWind.o

# either tkUnixFont.o (default) or tkUnixRFont.o (if --enable-xft)
#
FONT_OBJS = @[email protected]
................................................................................
	$(GENERIC_DIR)/tkCanvLine.c $(GENERIC_DIR)/tkCanvPoly.c \
	$(GENERIC_DIR)/tkCanvPs.c $(GENERIC_DIR)/tkCanvText.c \
	$(GENERIC_DIR)/tkCanvUtil.c \
	$(GENERIC_DIR)/tkCanvWind.c $(GENERIC_DIR)/tkRectOval.c \
	$(GENERIC_DIR)/tkTrig.c $(GENERIC_DIR)/tkImage.c \
	$(GENERIC_DIR)/tkImgBmap.c $(GENERIC_DIR)/tkImgGIF.c \
	$(GENERIC_DIR)/tkImgPNG.c $(GENERIC_DIR)/tkImgPPM.c \

	$(GENERIC_DIR)/tkImgPhoto.c $(GENERIC_DIR)/tkImgPhInstance.c \
	$(GENERIC_DIR)/tkImgListFormat.c $(GENERIC_DIR)/tkText.c \
	$(GENERIC_DIR)/tkTextBTree.c $(GENERIC_DIR)/tkTextDisp.c \
	$(GENERIC_DIR)/tkTextImage.c \
	$(GENERIC_DIR)/tkTextIndex.c $(GENERIC_DIR)/tkTextMark.c \
	$(GENERIC_DIR)/tkTextTag.c $(GENERIC_DIR)/tkTextWind.c \
	$(GENERIC_DIR)/tkOldConfig.c $(GENERIC_DIR)/tkOldTest.c \
................................................................................

tkImgPNG.o: $(GENERIC_DIR)/tkImgPNG.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkImgPNG.c

tkImgPPM.o: $(GENERIC_DIR)/tkImgPPM.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkImgPPM.c




tkImgPhoto.o: $(GENERIC_DIR)/tkImgPhoto.c $(GENERIC_DIR)/tkImgPhoto.h
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkImgPhoto.c

tkImgPhInstance.o: $(GENERIC_DIR)/tkImgPhInstance.c $(GENERIC_DIR)/tkImgPhoto.h
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkImgPhInstance.c

tkOldTest.o: $(GENERIC_DIR)/tkOldTest.c






|







 







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	tkPanedWindow.o tkScale.o tkScrollbar.o

CANV_OBJS = tkCanvas.o tkCanvArc.o tkCanvBmap.o tkCanvImg.o \
	tkCanvLine.o tkCanvPoly.o tkCanvPs.o tkCanvText.o \
	tkCanvUtil.o tkCanvWind.o tkRectOval.o tkTrig.o

IMAGE_OBJS = tkImage.o tkImgBmap.o tkImgGIF.o tkImgPNG.o tkImgPPM.o \
	tkImgPhoto.o tkImgPhInstance.o tkImgListFormat.o tkImgSVGnano.o

TEXT_OBJS = tkText.o tkTextBTree.o tkTextDisp.o tkTextImage.o tkTextIndex.o \
	tkTextMark.o tkTextTag.o tkTextWind.o

# either tkUnixFont.o (default) or tkUnixRFont.o (if --enable-xft)
#
FONT_OBJS = @[email protected]
................................................................................
	$(GENERIC_DIR)/tkCanvLine.c $(GENERIC_DIR)/tkCanvPoly.c \
	$(GENERIC_DIR)/tkCanvPs.c $(GENERIC_DIR)/tkCanvText.c \
	$(GENERIC_DIR)/tkCanvUtil.c \
	$(GENERIC_DIR)/tkCanvWind.c $(GENERIC_DIR)/tkRectOval.c \
	$(GENERIC_DIR)/tkTrig.c $(GENERIC_DIR)/tkImage.c \
	$(GENERIC_DIR)/tkImgBmap.c $(GENERIC_DIR)/tkImgGIF.c \
	$(GENERIC_DIR)/tkImgPNG.c $(GENERIC_DIR)/tkImgPPM.c \
	$(GENERIC_DIR)/tkImgSVGnano.c $(GENERIC_DIR)/tkImgSVGnano.c \
	$(GENERIC_DIR)/tkImgPhoto.c $(GENERIC_DIR)/tkImgPhInstance.c \
	$(GENERIC_DIR)/tkImgListFormat.c $(GENERIC_DIR)/tkText.c \
	$(GENERIC_DIR)/tkTextBTree.c $(GENERIC_DIR)/tkTextDisp.c \
	$(GENERIC_DIR)/tkTextImage.c \
	$(GENERIC_DIR)/tkTextIndex.c $(GENERIC_DIR)/tkTextMark.c \
	$(GENERIC_DIR)/tkTextTag.c $(GENERIC_DIR)/tkTextWind.c \
	$(GENERIC_DIR)/tkOldConfig.c $(GENERIC_DIR)/tkOldTest.c \
................................................................................

tkImgPNG.o: $(GENERIC_DIR)/tkImgPNG.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkImgPNG.c

tkImgPPM.o: $(GENERIC_DIR)/tkImgPPM.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkImgPPM.c

tkImgSVGnano.o: $(GENERIC_DIR)/tkImgSVGnano.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkImgSVGnano.c

tkImgPhoto.o: $(GENERIC_DIR)/tkImgPhoto.c $(GENERIC_DIR)/tkImgPhoto.h
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkImgPhoto.c

tkImgPhInstance.o: $(GENERIC_DIR)/tkImgPhInstance.c $(GENERIC_DIR)/tkImgPhoto.h
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkImgPhInstance.c

tkOldTest.o: $(GENERIC_DIR)/tkOldTest.c

Changes to win/Makefile.in.

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323

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	tkGrid.$(OBJEXT) \
	tkImage.$(OBJEXT) \
	tkImgBmap.$(OBJEXT) \
	tkImgListFormat.$(OBJEXT) \
	tkImgGIF.$(OBJEXT) \
	tkImgPNG.$(OBJEXT) \
	tkImgPPM.$(OBJEXT) \

	tkImgPhoto.$(OBJEXT) \
	tkImgPhInstance.$(OBJEXT) \
	tkImgUtil.$(OBJEXT) \
	tkListbox.$(OBJEXT) \
	tkMacWinMenu.$(OBJEXT) \
	tkMain.$(OBJEXT) \
	tkMain2.$(OBJEXT) \






>







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	tkGrid.$(OBJEXT) \
	tkImage.$(OBJEXT) \
	tkImgBmap.$(OBJEXT) \
	tkImgListFormat.$(OBJEXT) \
	tkImgGIF.$(OBJEXT) \
	tkImgPNG.$(OBJEXT) \
	tkImgPPM.$(OBJEXT) \
	tkImgSVGnano.$(OBJEXT) \
	tkImgPhoto.$(OBJEXT) \
	tkImgPhInstance.$(OBJEXT) \
	tkImgUtil.$(OBJEXT) \
	tkListbox.$(OBJEXT) \
	tkMacWinMenu.$(OBJEXT) \
	tkMain.$(OBJEXT) \
	tkMain2.$(OBJEXT) \

Changes to win/makefile.vc.

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	$(TMP_DIR)\tkGrid.obj \
	$(TMP_DIR)\tkImage.obj \
	$(TMP_DIR)\tkImgBmap.obj \
	$(TMP_DIR)\tkImgListFormat.obj \
	$(TMP_DIR)\tkImgGIF.obj \
	$(TMP_DIR)\tkImgPNG.obj \
	$(TMP_DIR)\tkImgPPM.obj \

	$(TMP_DIR)\tkImgPhoto.obj \
	$(TMP_DIR)\tkImgPhInstance.obj \
	$(TMP_DIR)\tkImgUtil.obj \
	$(TMP_DIR)\tkListbox.obj \
	$(TMP_DIR)\tkMacWinMenu.obj \
	$(TMP_DIR)\tkMain.obj \
	$(TMP_DIR)\tkMain2.obj \






>







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	$(TMP_DIR)\tkGrid.obj \
	$(TMP_DIR)\tkImage.obj \
	$(TMP_DIR)\tkImgBmap.obj \
	$(TMP_DIR)\tkImgListFormat.obj \
	$(TMP_DIR)\tkImgGIF.obj \
	$(TMP_DIR)\tkImgPNG.obj \
	$(TMP_DIR)\tkImgPPM.obj \
	$(TMP_DIR)\tkImgSVGnano.obj \
	$(TMP_DIR)\tkImgPhoto.obj \
	$(TMP_DIR)\tkImgPhInstance.obj \
	$(TMP_DIR)\tkImgUtil.obj \
	$(TMP_DIR)\tkListbox.obj \
	$(TMP_DIR)\tkMacWinMenu.obj \
	$(TMP_DIR)\tkMain.obj \
	$(TMP_DIR)\tkMain2.obj \