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CloverBootloader/rEFIt_UEFI/libeg/nanosvg.cpp
jief666 2961827dce Correct some refactoring bugs.
2020-08-17 22:40:52 +03:00

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/*
* Copyright (c) 2013-14 Mikko Mononen memon@inside.org
*
* 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
*
*/
// 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!
//
#include "nanosvg.h"
#include "FloatLib.h"
#include "../Platform/b64cdecode.h"
#include "XImage.h"
#include "../refit/lib.h"
#ifndef DEBUG_ALL
#define DEBUG_SVG 0
#else
#define DEBUG_SVG DEBUG_ALL
#endif
#if DEBUG_SVG == 0
#define DBG(...)
#else
#define DBG(...) DebugLog(DEBUG_SVG, __VA_ARGS__)
#endif
//typedef UINTN size_t;
#define NSVG_PI (3.14159265358979323846264338327f)
#define NSVG_PI_DEG (0.01745329251994f)
#define NSVG_KAPPA90 (0.5522847493f) // Length proportional to radius of a cubic bezier handle for 90deg arcs.
#define pow(x,n) PowF(x,n)
#define sqrt(x) SqrtF(x)
#define sqrtf(x) SqrtF(x)
#define sinf(x) SinF(x)
#define cosf(x) CosF(x)
#define tanf(x) TanF(x)
#define ceilf(x) CeilF(x)
#define floorf(x) FloorF(x)
#define acosf(x) AcosF(x)
#define atan2f(x,y) Atan2F(x,y)
#define fabsf(x) FabsF(x)
//#define sscanf(s,f,x) AsciiStrToFloat(s, NULL, x)
#define fabs(x) ((x > 0.0)?x:(-x))
//#define fabsf(x) ((x > 0.0f)?x:(-x))
#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)b) | ((unsigned int)g << 8) | ((unsigned int)r << 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
#else
#define NSVG_INLINE inline
#endif
//TODO there are anime properties should be properties of FilmC
//which is not accessible here
UINTN NumFrames;
UINTN FrameTime;
int nsvg__shapesBound(NSVGshape *shapes, float* bounds);
void takeXformBounds(NSVGshape *shape, float *xform, float *bounds);
void nsvg__deleteShapes(NSVGshape* shape);
void DumpFloat2 (CONST char* s, float* t, int N)
{
#if DEBUG_SVG
int i;
DBG("%s: ", s);
for(i=0; i<N;i++)
{
float a = t[i];
int b = (int)a;
int sign = (a < 0.f);
DBG("%c%d.%06d ", ((b == 0) && sign)?'-':' ', b, (int)(fabsf((a-(float)b)*1.0e6f)));
}
DBG("\n");
#endif
}
static int getIntegerDict(const char* s)
{
if ((s[1] == 'x') || (s[1] == 'X')) {
return (int)AsciiStrHexToUintn (s);
} else if (IS_DIGIT(s[0])) {
return (int)AsciiStrDecimalToUintn(s);
}
return 0xFFFF;
}
float nsvg__sqr(float x) { return x*x; }
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 char *nsvg__strndup(const char *s, size_t n);
// Calculate number of characters.
static int nsvg__strchr(const char *s, char c)
{
int n = 0;
while (*s != 0) {
if (*s++ == c) {
n++;
}
}
return n;
}
static int nsvg__isspace(char c)
{
return nsvg__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 nsvg__strchr("0123456789+-.eE", c) != 0; //SIC!
}
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, 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* tagname;
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
tagname = 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';
// DBG("attrib name %s\n", name);
}
// 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';
// DBG("value:%s\n", value);
}
// Store only well formed attributes
if (name && value) {
attr[nattr++] = name; //class
attr[nattr++] = value; //Master_Slide
// DBG("attrib %d: name %s value %s\n", nattr, name, value);
}
}
// List terminator
attr[nattr++] = 0;
attr[nattr++] = 0;
// Call callbacks.
if (start && startelCb) {
(*startelCb)(ud, tagname, attr); //nsvg__startElement
}
if (end && endelCb) {
(*endelCb)(ud, tagname); //nsvg__endElement
}
// DBG("parseElement %s ended\n", tagname);
}
void 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, char* s),
void* ud)
{
char* s = input;
char* mark = s;
int state = NSVG_XML_CONTENT;
while (*s) {
if (*s == '<' && state == NSVG_XML_CONTENT) {
// skip cdata
if (strncmp(s, "<![CDATA[", 9) == 0) {
s += 9;
char* rv = strstr(s, "]]>");
if (rv) s = rv + 3;
continue;
}
// Start of a tag
*s++ = '\0';
nsvg__parseContent(mark, contentCb, ud);
// DBG("tag content %s parsed\n", mark);
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);
// DBG("nsvg__parseElement %s\n", mark);
nsvg__parseElement(mark, startelCb, endelCb, ud);
// DBG(" element %s parsed\n", mark);
mark = s;
state = NSVG_XML_CONTENT;
} else {
s++;
}
}
return;
}
/* Simple SVG parser. */
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;
}
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;
}
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;
}
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(inv);
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);
}
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 = -3.0f * v0[i] + 9.0f * v1[i] - 9.0f * v2[i] + 3.0f * v3[i];
b = 6.0f * v0[i] - 12.0f * v1[i] + 6.0f * v2[i];
c = 3.0f * v1[i] - 3.0f * v0[i];
count = 0;
if (fabs(a) < NSVG_EPSILON) {
if (fabs(b) > NSVG_EPSILON) {
t = -c / b;
if (t > NSVG_EPSILON && t < 1.0f-NSVG_EPSILON)
roots[count++] = t;
}
} else {
b2ac = b*b - 4.0f*c*a;
if (b2ac > NSVG_EPSILON) {
t = (-b + (double)sqrtf((float)b2ac)) / (2.0 * a);
if (t > NSVG_EPSILON && t < 1.0-NSVG_EPSILON) roots[count++] = t;
t = (-b - (double)sqrtf((float)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);
}
}
}
NSVGparser* nsvg__createParser()
{
NSVGparser* p;
p = (NSVGparser*)AllocateZeroPool(sizeof(NSVGparser));
if (p == NULL) return NULL;
p->image = (NSVGimage*)AllocateZeroPool(sizeof(NSVGimage));
if (p->image == NULL) {
FreePool(p);
return NULL;
}
// Init style
nsvg__xformIdentity(p->attr[0].xform);
memset(p->attr[0].id, 0, kMaxIDLength);
p->attr[0].fillColor = NSVG_RGB(0,0,0);
p->attr[0].strokeColor = NSVG_RGB(0,0,0);
p->attr[0].opacity = 1.f;
p->attr[0].fillOpacity = 1.f;
p->attr[0].strokeOpacity = 1.f;
p->attr[0].stopOpacity = 1.f;
p->attr[0].strokeWidth = 1.f;
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;
p->isText = FALSE;
return p;
}
static void nsvg__deleteStyles(NSVGstyles* style)
{
while (style) {
NSVGstyles *next = style->next;
if (style->name != NULL)
FreePool(style->name);
if (style->description != NULL)
FreePool(style->description);
FreePool(style);
style = next;
}
}
static void nsvg__deletePaths(NSVGpath* path)
{
while (path) {
NSVGpath *next = path->next;
if (path->pts != NULL) {
FreePool(path->pts);
path->pts = NULL;
}
FreePool(path);
path = next;
}
}
void nsvg__deleteFont(NSVGfont* font)
{
NSVGglyph *glyphs, *next;
if (!font) {
return;
}
if (font->missingGlyph) {
// DBG("missing glyph=%s\n", font->missingGlyph->name);
nsvg__deletePaths(font->missingGlyph->path);
FreePool(font->missingGlyph);
font->missingGlyph = NULL;
}
glyphs = font->glyphs;
while (glyphs) {
// DBG(" glyph=%s\n", glyphs->name);
next = glyphs->next;
nsvg__deletePaths(glyphs->path);
FreePool(glyphs);
glyphs = next;
}
FreePool(font);
}
static void nsvg__deletePaint(NSVGpaint* paint)
{
if (!paint || !paint->paint.gradient) {
return;
}
if (paint->type == NSVG_PAINT_LINEAR_GRADIENT ||
paint->type == NSVG_PAINT_RADIAL_GRADIENT ||
paint->type == NSVG_PAINT_CONIC_GRADIENT) {
FreePool(paint->paint.gradient);
paint->paint.gradient = NULL;
}
}
static void nsvg__deleteGradientData(NSVGgradientData* grad)
{
NSVGgradientData* next;
while (grad != NULL) {
next = grad->next;
if (grad->nstops > 0) {
FreePool(grad->stops);
}
FreePool(grad);
grad = next;
}
}
static void nsvg__deleteSymbols(NSVGsymbol* symbol)
{
NSVGsymbol* next;
while (symbol) {
next = symbol->next;
NSVGshape* shape = symbol->shapes;
nsvg__deleteShapes(shape);
FreePool(symbol);
symbol = next;
}
}
void nsvg__deleteParser(NSVGparser* p)
{
int i;
if (p != NULL) {
nsvg__deleteStyles(p->styles);
nsvg__deleteSymbols(p->symbols);
nsvg__deletePaths(p->plist);
nsvg__deleteGradientData(p->gradients);
// do not delete font here, as we free all fonts later by following fontsdb
nsvgDelete(p->image);
if (p->cpts > 0 && p->pts) {
FreePool(p->pts);
}
for (i=0; i<NSVG_MAX_ATTR; i++) {
NSVGattrib* attr = &(p->attr[i]);
if (attr && attr->fontFace) {
FreePool(attr->fontFace);
attr->fontFace = NULL;
}
while (attr->group) {
NSVGgroup* group = attr->group->next;
FreePool(attr->group);
attr->group = group;
}
}
FreePool(p);
}
}
static void nsvg__resetPath(NSVGparser* p)
{
p->npts = 0;
if (p->cpts > 0 && p->pts) {
FreePool(p->pts);
p->pts = NULL;
p->cpts = 0;
}
}
static void nsvg__addPoint(NSVGparser* p, float x, float y)
{
// DBG("enter addPoint\n");
if (p->npts*2+7 > p->cpts) {
// DBG("npts=%d, cpts=%d\n", p->npts, p->cpts);
if ((p->cpts == 0) || !p->pts) {
p->cpts = 8;
p->pts = (float*)AllocatePool(16 * sizeof(float));
} else {
// DBG("reallocate\n");
p->cpts *= 2;
p->pts = (float*)ReallocatePool(p->cpts*sizeof(float), p->cpts*2*sizeof(float), p->pts);
}
if (!p->pts) return;
}
// DBG("new point\n");
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) {
// DBG("npts=%d, and cpts=%d\n", p->npts, p->cpts);
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));
memset(&p->attr[p->attrHead].id, 0, sizeof(p->attr[p->attrHead].id));
// p->attr[p->attrHead].opacity = 1.0f; //let it be copy
}
}
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 nsvg__vmag(w, h) * 0.70710678118655f; // 1.0/sqrtf(2.0f);
}
static float nsvg__convertToPixels(NSVGparser* p, NSVGcoordinate* c, float orig, float length)
{
NSVGattrib* attr = nsvg__getAttr(p);
float fontSize = 10;
if ((p->dpi <= 0) || (p->dpi > 2400)) {
// DBG("wrong dpi=%d\n", (int)p->dpi);
p->dpi = 72;
}
if (attr->fontFace) {
fontSize = attr->fontFace->fontSize;
}
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 * fontSize;
case NSVG_UNITS_EX: return c->value * fontSize * 0.52f; // x-height of Helvetica.
case NSVG_UNITS_PERCENT: return orig + c->value * 0.01f * length;
default: return c->value;
}
// return c.value;
}
static float nsvg__convertToPixelsForGradient(NSVGparser* p, char units, NSVGcoordinate* c, float orig, float length)
{
// float temp = 0.0;
//units can be NSVG_USER_SPACE or NSVG_OBJECT_SPACE
if (units == NSVG_USER_SPACE || c->units == NSVG_UNITS_PERCENT)
return nsvg__convertToPixels(p, c, orig, length);
return orig + c->value * length; //orig=x1 length=x2-x1 c->value= 86%
}
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 NSVGgradientLink* nsvg__createGradientLink(const char* id)
{
NSVGgradientLink* grad = (NSVGgradientLink*)AllocateZeroPool(sizeof(NSVGgradientLink));
if (grad == NULL) return NULL;
strncpy(grad->id, id, 63);
grad->id[63] = '\0';
return grad;
}
static void nsvg__getLocalBounds(float* bounds, NSVGshape *shape); //, float* xform);
static NSVGgradient* nsvg__createGradient(NSVGparser* p, NSVGshape* shape, NSVGgradientLink* link, 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;
if (!link) {
*paintType = NSVG_PAINT_NONE;
return NULL;
}
data = nsvg__findGradientData(p, link->id);
if (data == NULL) return NULL;
// DumpFloat2("gradient data xform:", data->xform, 6);
stops = data->stops;
nstops = data->nstops;
ref = nsvg__findGradientData(p, data->ref);
while (ref != NULL) {
if (stops == NULL && ref->stops != NULL) { //take stops only once at first occuerence
stops = ref->stops;
nstops = ref->nstops;
}
//left referenced, right is current,
// matrix are reversed
nsvg__xformPremultiply(data->xform, ref->xform);
ref = nsvg__findGradientData(p, ref->ref); //recursive refs?
}
if (stops == NULL) return NULL;
// DumpFloat2("gradient final xform:", data->xform, 6);
grad = (NSVGgradient*)AllocateZeroPool(sizeof(NSVGgradient) + sizeof(NSVGgradientStop)*(nstops-1));
if (grad == NULL) return NULL;
// The shape width and height.
if (data->units == NSVG_OBJECT_SPACE) {
float localBounds[4];
nsvg__getLocalBounds(localBounds, shape); //, inv); //before any transform
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);
}
float gradForm[6]; //coordinates
nsvg__xformIdentity(gradForm);
// sl = sqrtf(sw*sw + sh*sh) * 0.70710678118655f; // == 1. / sqrtf(2.0f);
sl = nsvg__vmag(sw, sh) * 0.70710678118655f;
if (data->type == NSVG_PAINT_LINEAR_GRADIENT) {
float x1, y1, x2, y2, dx, dy;
x1 = nsvg__convertToPixelsForGradient(p, data->units, &data->direction.linear.x1, ox, sw);
y1 = nsvg__convertToPixelsForGradient(p, data->units, &data->direction.linear.y1, oy, sh);
x2 = nsvg__convertToPixelsForGradient(p, data->units, &data->direction.linear.x2, ox, sw);
y2 = nsvg__convertToPixelsForGradient(p, data->units, &data->direction.linear.y2, oy, sh);
// Calculate transform aligned to the line
dx = x2 - x1;
dy = y2 - y1;
gradForm[0] = dy; gradForm[1] = -dx;
gradForm[2] = dx; gradForm[3] = dy;
gradForm[4] = x1; gradForm[5] = y1;
} else if ((data->type == NSVG_PAINT_RADIAL_GRADIENT) ||
(data->type == NSVG_PAINT_CONIC_GRADIENT)) {
float cx, cy, fx, fy, r;
cx = nsvg__convertToPixelsForGradient(p, data->units, &data->direction.radial.cx, ox, sw);
cy = nsvg__convertToPixelsForGradient(p, data->units, &data->direction.radial.cy, oy, sh);
fx = nsvg__convertToPixelsForGradient(p, data->units, &data->direction.radial.fx, ox, sw);
fy = nsvg__convertToPixelsForGradient(p, data->units, &data->direction.radial.fy, oy, sh);
r = nsvg__convertToPixelsForGradient(p, data->units, &data->direction.radial.r, 0, sl);
// Calculate transform aligned to the circle
gradForm[0] = r; gradForm[1] = 0;
gradForm[2] = 0; gradForm[3] = r;
gradForm[4] = cx; gradForm[5] = cy;
grad->fx = fx / r; //bad idea
grad->fy = fy / r;
}
// nsvg__xformInverse(grad->xform, gradForm);
// nsvg__xformMultiply(grad->xform, data->xform); //from GradientData "gradientTransform"
nsvg__xformMultiply(gradForm, data->xform);
nsvg__xformInverse(grad->xform, gradForm);
grad->spread = data->spread;
grad->ditherCoarse = data->ditherCoarse;
memcpy(grad->stops, stops, nstops*sizeof(NSVGgradientStop));
grad->nstops = nstops;
*paintType = data->type;
return grad;
}
static float nsvg__getAverageScale(float* t)
{
return (nsvg__vmag(t[0], t[2]) + nsvg__vmag(t[1], t[3])) * 0.5f;
}
static void nsvg__getLocalBounds(float* bounds, NSVGshape *shape) //, float* atXform)
{
NSVGpath* path;
float curve[8];
float curveBounds[4];
int i, first = 1;
for (path = shape->paths; path != NULL; path = path->next) {
curve[0] = path->pts[0];
curve[1] = path->pts[1];
for (i = 1; i < path->npts; i += 3) {
// curve = &path->pts[i*2];
memcpy(&curve[2], &path->pts[i*2], 6*sizeof(float));
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__getSymbolBounds(NSVGparser* p)
{
NSVGsymbol* symbol = p->symbols;
NSVGshape* shape = symbol->shapes;
if (!shape) return;
symbol->bounds[0] = FLT_MAX;
symbol->bounds[1] = FLT_MAX;
symbol->bounds[2] = -FLT_MAX;
symbol->bounds[3] = -FLT_MAX;
nsvg__shapesBound(shape, symbol->bounds);
// DumpFloat2("Symbol has bounds", symbol->bounds, 4); //nothing
DumpFloat2("Symbol has viewbox", symbol->viewBox, 4);
}
*/
static void nsvg__addShape(NSVGparser* p)
{
NSVGattrib* attr = nsvg__getAttr(p);
float scale;
NSVGshape* shape;
int i;
if (p->plist == NULL /*&& !p->isText*/ )
return;
shape = (NSVGshape*)AllocateZeroPool(sizeof(NSVGshape));
if (shape == NULL) return;
memcpy(shape->id, attr->id, sizeof shape->id);
memcpy(shape->title, attr->title, sizeof shape->title);
// DBG("shapeID=%s\n", shape->id);
shape->group = attr->group;
scale = nsvg__getAverageScale(attr->xform); //ssss
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;
memcpy(shape->xform, attr->xform, sizeof(float)*6);
shape->paths = p->plist;
p->plist = NULL;
shape->clip.count = attr->clipPathCount;
if (shape->clip.count > 0) {
shape->clip.index = (NSVGclipPathIndex*)AllocateCopyPool(attr->clipPathCount * sizeof(NSVGclipPathIndex),
p->clipPathStack);
if (shape->clip.index == NULL) {
FreePool(shape);
return;
}
}
nsvg__getLocalBounds(shape->bounds, shape); //(dest, src)
// Set fill
shape->fill.type = NSVG_PAINT_NONE;
if (attr->hasFill == 1) {
shape->fill.type = NSVG_PAINT_COLOR;
shape->fill.paint.color = ((unsigned int)(attr->fillOpacity*255) << 24) | attr->fillColor;
} else if (attr->hasFill == 2) {
shape->fill.type = NSVG_PAINT_GRADIENT_LINK;
shape->fill.paint.gradientLink = nsvg__createGradientLink(attr->fillGradient);
if (shape->fill.paint.gradientLink == NULL) {
shape->fill.type = NSVG_PAINT_NONE;
if (shape->clip.index) {
FreePool(shape->clip.index);
}
FreePool(shape);
return;
}
} else if (attr->hasFill == 3) {
shape->fill.type = NSVG_PAINT_PATTERN;
const char *id = attr->fillGradient;
NSVGpattern* pt = p->patterns;
while (pt) {
if (strcmp(pt->id, id) == 0) {
break;
}
pt = pt->next;
}
shape->fill.paint.gradient = (NSVGgradient*)pt;
}
// Set stroke
shape->stroke.type = NSVG_PAINT_NONE;
if (attr->hasStroke == 1) {
shape->stroke.type = NSVG_PAINT_COLOR;
shape->stroke.paint.color = ((unsigned int)(attr->strokeOpacity*255) << 24) | attr->strokeColor;
} else if (attr->hasStroke == 2) {
shape->stroke.type = NSVG_PAINT_GRADIENT_LINK;
shape->stroke.paint.gradientLink = nsvg__createGradientLink(attr->strokeGradient);
if (shape->stroke.paint.gradientLink == NULL) {
shape->fill.type = NSVG_PAINT_NONE;
if (shape->clip.index) {
FreePool(shape->clip.index);
}
FreePool(shape);
return;
}
} else if (attr->hasStroke == 3) {
shape->stroke.type = NSVG_PAINT_PATTERN;
const char *id = attr->strokeGradient;
NSVGpattern* pt = p->patterns;
while (pt) {
if (strcmp(pt->id, id) == 0) {
break;
}
pt = pt->next;
}
shape->stroke.paint.gradient = (NSVGgradient*)pt;
}
// Set flags
// shape->flags = ((attr->visible & NSVG_VIS_DISPLAY) && (attr->visible & NSVG_VIS_VISIBLE) ? NSVG_VIS_VISIBLE : 0x00);
shape->flags = attr->visible;
if (p->defsFlag) {
shape->flags = 0;
}
// Add shape
if (p->clipPath != NULL) {
shape->next = p->clipPath->shapes;
p->clipPath->shapes = shape;
} else if (p->symbolFlag) {
if (p->symbols->shapes == NULL)
p->symbols->shapes = shape;
else
p->symbols->shapesTail->next = shape;
p->symbols->shapesTail = shape;
} else {
// Add to tail
if (p->image->shapes == NULL)
p->image->shapes = shape;
else
p->shapesTail->next = shape;
p->shapesTail = shape;
}
return;
}
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*)AllocateZeroPool(sizeof(NSVGpath));
if (path == NULL) {
return;
}
path->pts = (float*)AllocateZeroPool(p->npts*2*sizeof(float));
if (path->pts == NULL) {
FreePool(path);
return;
}
path->closed = closed;
path->npts = p->npts;
memcpy(path->pts, p->pts, p->npts * 2 * sizeof(float));
// 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;
}
//Slice - replace by own implementation
#ifdef USE_ATOF
// 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;
long long intPart = 0, fracPart = 0;
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
// intPart = (double)strtoll(cur, &end, 10);
AsciiStrDecimalToUintnS(cur, &end, &intPart);
if (cur != end) {
res = (double)intPart;
hasIntPart = 1;
cur = end;
}
}
// Parse fractional part.
if (*cur == '.') {
cur++; // Skip '.'
if (nsvg__isdigit(*cur)) {
// Parse digit sequence
// fracPart = strtoll(cur, &end, 10);
AsciiStrDecimalToUintnS(cur, &end, &fracPart);
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;
}
#else
static float nsvg__atof(const char* s)
{
float Data = 0.0f;
AsciiStrToFloat(s, NULL, &Data);
return Data;
}
#endif
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;
}
//w3.org
/*
<circle cx="200" cy="135" r="20" fill="#3b3"/> //Three digit hex — #rgb
<circle cx="240" cy="135" r="20" fill="#33bb33"/> //Six digit hex — #rrggbb
<circle cx="200" cy="175" r="20" fill="rgb(51,187,51)"/> //Integer functional — rgb(rrr, ggg, bbb)
<circle cx="240" cy="175" r="20" fill="rgb(20%,73.333%,20%)"/> //Float functional — rgb(R%, G%, B%)
*/
static unsigned int nsvg__parseColorHex(const char* str)
{
unsigned int r = 0, g = 0, b = 0;
UINTN c = 0;
int n = 0;
str++; // skip #
// Calculate number of characters.
while(str[n] && IsHexDigit(str[n]))
n++;
if (n == 6) {
n = hex2bin((CHAR8*)str, (UINT8*)&c, 3); //big endian
b = (c >> 16) & 0xff;
g = (c >> 8) & 0xff;
r = c & 0xff;
} else if (n == 3) {
c = AsciiStrHexToUintn(str);
r = ((c&0xf00) >> 8) * 17;
g = ((c&0xf0) >> 4) * 17;
b = (c&0xf) * 17;
}
return NSVG_RGB(r,g,b);
}
static unsigned int nsvg__parseColorRGB(const char* str)
{
int r = -1, g = -1, b = -1;
float fr, fg, fb;
char *s1 = NULL;
AsciiStrToFloat(str+4, &s1, &fr);
if (*s1 == '%') {
r = (int)(fr * 2.55f);
str = s1 + 2;
} else if (*s1 == ',') {
r = (int)fr;
str = s1 + 1;
} else {
//error
DBG("StrFloat error:%s\n", str);
return NSVG_RGB(0,0,0);
}
AsciiStrToFloat(str, &s1, &fg);
if (*s1 == '%') {
g = (int)(fg * 2.55f);
str = s1 + 2;
} else if (*s1 == ',') {
g = (int)fg;
str = s1 + 1;
} else {
//error
DBG("StrFloat error:%s\n", str);
return NSVG_RGB(0,0,0);
}
AsciiStrToFloat(str, &s1, &fb);
if (*s1 == '%') {
b = (int)(fb * 2.55f);
} else {
b = (int)fb;
}
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);
// DBG("namedcolor=%d\n", sizeof(NSVGNamedColor));
#if 0
for (i = 0; i < ncolors; i++) {
if (strcmp(nsvg__colors[i].name, str) == 0) {
return nsvg__colors[i].color;
}
}
#else
int low, high, med;
INTN res;
low = 10;
high = ncolors - 1;
for (i = 0; i < 10; i++) {
if (strcmp(nsvg__colors[i].name, str) == 0) {
return nsvg__colors[i].color;
}
}
while (low <= high)
{
med = (low + high) / 2;
res = strcmp(nsvg__colors[med].name, str);
if(res < 0)
low = med + 1;
else if (res > 0)
high = med - 1;
else
return nsvg__colors[med].color;
}
#endif
return NSVG_RGB(128, 128, 128); //if not found then Grey50%
}
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);
AsciiStrToFloat(str, NULL, &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);
AsciiStrToFloat(str, NULL, &val);
if (val < 0.0f) val = 0.0f;
return val;
}
static int nsvg__parseUnits(const char* units)
{
if (!units || units[0] == '\0') {
return NSVG_UNITS_USER;
}
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]="";
char* UnitsStr = NULL;
// sscanf(str, "%f%31s", &coord.value, units);
AsciiStrToFloat(str, &UnitsStr, &coord.value);
// coord.units = nsvg__parseUnits(units);
coord.units = nsvg__parseUnits((const char*)UnitsStr);
return coord;
}
static NSVGcoordinate nsvg__coord(float v, int units)
{
NSVGcoordinate coord;
coord.value = v;
coord.units = units;
return coord;
}
static float nsvg__parseCoordinate(NSVGparser* p, const char* str, float orig, float length)
{
NSVGcoordinate coord = nsvg__parseCoordinateRaw(str);
float v = nsvg__convertToPixels(p, &coord, orig, length);
return v;
}
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] * NSVG_PI_DEG);
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] * NSVG_PI_DEG);
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] * NSVG_PI_DEG);
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];
// INT64 i, j;
// float v;
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_CAP_BUTT;
}
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 NSVGclipPath* nsvg__createClipPath(const char* name, int index)
{
NSVGclipPath* clipPath = (NSVGclipPath*)AllocateZeroPool(sizeof(NSVGclipPath));
if (clipPath == NULL) return NULL;
strncpy(clipPath->id, name, 63);
clipPath->id[63] = '\0';
clipPath->index = (NSVGclipPathIndex)index;
return clipPath;
}
static NSVGclipPath* nsvg__findClipPath(NSVGparser* p, const char* name)
{
int i = 0;
NSVGclipPath** link;
NSVGattrib* attr = nsvg__getAttr(p);
link = &p->image->clipPaths;
while (*link != NULL) {
if (strcmp((*link)->id, name) == 0) {
break;
}
link = &(*link)->next;
i++;
}
if (*link == NULL) {
*link = nsvg__createClipPath(name, i);
(*link)->group = attr->group;
}
return *link;
}
static int substr(const char* aClass, char* style)
{
const char *p;
while (*aClass) {
char *s = style;
p = aClass++;
while (*p++ == *s++) {
if (*s == '\0') {
if ((*p == '\0') || (*p == ' ')) {
return 1;
} else break;
}
}
}
return 0;
}
static void nsvg__parseStyle(NSVGparser* p, const char* str);
static int nsvg__parseAttr(NSVGparser* p, const char* name, const char* value)
{
float xform[6];
// DBG("parse Name:%s Value:%s\n", name, value);
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) {
if (strstr(value, "pattern")) {
attr->hasFill = 3;
} else {
attr->hasFill = 2;
}
nsvg__parseUrl(attr->fillGradient, value);
} else {
attr->hasFill = 1;
attr->fillColor = nsvg__parseColor(value);
}
} else if (strcmp(name, "opacity") == 0) {
float opacity = nsvg__parseOpacity(value);
attr->opacity *= opacity;
if (attr->opacity == 0.0f) {
attr->opacity = p->opacity; //some trick for seal an image on preview
}
} 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) {
if (strstr(value, "pattern")) {
attr->hasStroke = 3;
} else {
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) {
if (!attr->fontFace) {
// DBG("font face=%d\n", sizeof(NSVGfont));
attr->fontFace = (NSVGfont*)AllocateZeroPool(sizeof(NSVGfont));
}
attr->fontFace->fontSize = nsvg__parseCoordinate(p, value, 0.0f, nsvg__actualLength(p));
} else if (strcmp(name, "clip-path") == 0) {
if (strncmp(value, "url(", 4) == 0 && attr->clipPathCount < NSVG_MAX_CLIP_PATHS) {
char clipName[64];
nsvg__parseUrl(clipName, value);
NSVGclipPath *clipPath = nsvg__findClipPath(p, clipName);
p->clipPathStack[attr->clipPathCount++] = clipPath->index;
}
} 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, "font-family") == 0) {
if (!attr->fontFace) {
// DBG("font face=%d\n", sizeof(NSVGfont));
attr->fontFace = (NSVGfont*)AllocateZeroPool(sizeof(NSVGfont));
}
if (attr->fontFace) {
if (value[0] == 0x27) { //'
CHAR8* apo = strstr(++value, "'");
if (apo) apo[0] = '\0';
}
// DBG("reduced font-family:%s\n", value);
strncpy(attr->fontFace->fontFamily, value, 63);
attr->fontFace->fontFamily[63] = '\0';
}
} else if (strcmp(name, "font-weight") == 0) {
if (!attr->fontFace) {
attr->fontFace = (NSVGfont*)AllocateZeroPool(sizeof(NSVGfont));
}
if (attr->fontFace) {
// char* Next = 0;
float fontWeight = 0.0f;
AsciiStrToFloat(value, NULL /*&Next*/, &fontWeight);
attr->fontFace->fontWeight = fontWeight;
}
} else if (strcmp(name, "font-style") == 0) {
DBG("attr=%s value=%s\n", name, value);
if (!attr->fontFace) {
attr->fontFace = (NSVGfont*)AllocateZeroPool(sizeof(NSVGfont));
}
if (strstr(value, "italic") != NULL) {
DBG("it is italic\n");
attr->fontFace->fontStyle = 'i';
} else if (strstr(value, "bold") != NULL) {
DBG("it is bold\n");
attr->fontFace->fontStyle = 'b';
} else if (strstr(value, "light") != NULL) {
DBG("it is light\n");
attr->fontFace->fontStyle = 'l';
} else {
DBG("it is other\n");
attr->fontFace->fontStyle = 'n';
}
} else if (strcmp(name, "id") == 0) {
strncpy(attr->id, value, sizeof(attr->id)-1); // -1 or not -1, doesn't change a thing because of the next line.
attr->id[63] = '\0';
} else if (strcmp(name, "x") == 0) {
nsvg__xformSetTranslation(xform, (float)nsvg__atof(value), 0);
nsvg__xformPremultiply(attr->xform, xform);
} else if (strcmp(name, "y") == 0) {
nsvg__xformSetTranslation(xform, 0, (float)nsvg__atof(value));
nsvg__xformPremultiply(attr->xform, xform);
} else if (strcmp(name, "transform") == 0) {
nsvg__parseTransform(xform, value);
nsvg__xformPremultiply(attr->xform, xform);
}
else if (strcmp(name, "class") == 0) {
NSVGstyles* style = p->styles;
while (style) {
if (substr(value, style->name) != 0) {
nsvg__parseStyle(p, style->description);
}
style = style->next;
}
}
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;
n = nsvg__parseAttr(p, name, value);
return n;
}
static void nsvg__parseStyle(NSVGparser* p, const char* str)
{
const char* start;
const char* end;
if (str == NULL) return;
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** dict)
{
int i;
for (i = 0; dict[i]; i += 2)
{
if (strcmp(dict[i], "style") == 0)
nsvg__parseStyle(p, dict[i + 1]);
else {
nsvg__parseAttr(p, dict[i], dict[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 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] * NSVG_PI_DEG; // 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);
d = nsvg__vmag(dx, 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);
if (ndivs > 6) ndivs = 6;
hda = (da / (float)ndivs) * 0.5f;
if ((hda < 1e-3f) && (hda > -1e-3f)) hda *= 0.5f;
else hda = (1.0f - cosf(hda)) / sinf(hda);
kappa = fabsf(4.0f / 3.0f * 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[30];
int nargs;
int rargs = 0;
float cpx, cpy, cpx2, cpy2;
// const char* tmp[4];
char closedFlag;
int i;
char item[kMaxIDLength];
for (i = 0; attr[i]; i += 2) {
if (strcmp(attr[i], "d") == 0) {
s = attr[i + 1];
} else {
nsvg__parseAttr(p, attr[i], attr[i + 1]);
}
}
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 < 30) {
float x = (float)nsvg__atof(item);
args[nargs++] = x;
}
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') {
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.
// DBG("commit path, npts=%d\n", p->npts);
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);
}
}
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 (strcmp(attr[i], "x") == 0) x = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigX(p), nsvg__actualWidth(p));
else if (strcmp(attr[i], "y") == 0) y = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
else if (strcmp(attr[i], "width") == 0) w = nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualWidth(p));
else if (strcmp(attr[i], "height") == 0) h = nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualHeight(p));
else if (strcmp(attr[i], "rx") == 0) rx = fabsf(nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualWidth(p)));
else if (strcmp(attr[i], "ry") == 0) ry = fabsf(nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualHeight(p)));
else nsvg__parseAttr(p, attr[i], attr[i + 1]);
}
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__parseUse(NSVGparser* p, const char** dict)
{
NSVGattrib* attr = nsvg__getAttr(p);
NSVGshape* shape = NULL;
NSVGshape* ref = NULL;
NSVGsymbol* refSym = NULL;
int i;
float x = 0.0f;
float y = 0.0f;
float xform[6];
for (i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "x") == 0) {
x = nsvg__parseCoordinate(p, dict[i+1], nsvg__actualOrigX(p), nsvg__actualWidth(p));
} else if (strcmp(dict[i], "y") == 0) {
y = nsvg__parseCoordinate(p, dict[i+1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
} else if (strcmp(dict[i], "xlink:href") == 0) {
const char *href = dict[i+1];
refSym = p->symbols;
while (refSym) {
if (strcmp(refSym->id, href+1) == 0)
break;
refSym = refSym->next;
}
if (!refSym) {
ref = p->image->shapes;
while (ref) {
if (strcmp(ref->id, href+1) == 0)
break;
ref = ref->next;
}
}
if (!ref && !refSym) {
return; // use without ref
}
} else {
nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
}
if (refSym) {
x -= refSym->viewBox[0];
y -= refSym->viewBox[1];
} else if (ref) {
x -= ref->bounds[0];
y -= ref->bounds[1];
}
nsvg__xformSetTranslation(&xform[0], x, y);
nsvg__xformMultiply(&xform[0], attr->xform); //translate before rotate
// DumpFloat2("use xform", xform, 6);
if (ref) {
shape = (NSVGshape*)AllocateCopyPool(sizeof(NSVGshape), ref);
if (!shape) return;
memcpy(shape->xform, &xform[0], sizeof(float)*6);
shape->isSymbol = FALSE;
shape->link = ref;
shape->group = attr->group;
AsciiStrCatS(shape->id, 64, "_lnk");
shape->bounds[0] = FLT_MAX;
shape->bounds[1] = FLT_MAX;
shape->bounds[2] = -FLT_MAX;
shape->bounds[3] = -FLT_MAX;
takeXformBounds(ref, &xform[0], shape->bounds);
// DumpFloat2("used shape has bounds", shape->bounds, 4);
} else if (refSym) {
shape = (NSVGshape*)AllocateZeroPool(sizeof(NSVGshape));
if (!shape) return;
memcpy(shape->xform, xform, sizeof(float)*6);
// nsvg__xformMultiply(shape->xform, &xform[0]);
shape->isSymbol = TRUE;
shape->link = refSym->shapes;
shape->group = attr->group;
AsciiStrCpyS(shape->id, 64, attr->id);
shape->bounds[0] = FLT_MAX;
shape->bounds[1] = FLT_MAX;
shape->bounds[2] = -FLT_MAX;
shape->bounds[3] = -FLT_MAX;
NSVGshape* shapeInt = refSym->shapes;
float xform2[6];
while (shapeInt) {
memcpy(&xform2[0], shape->xform, sizeof(float)*6);
nsvg__xformPremultiply(&xform2[0], shapeInt->xform);
takeXformBounds(shapeInt, &xform2[0], shape->bounds);
shapeInt = shapeInt->next;
}
// DumpFloat2("used symbol has bounds", shape->bounds, 4);
}
/* //there can't be own gradient
// DBG("paint type=%d\n", shape->fill.type);
if (shape->fill.type == NSVG_PAINT_GRADIENT_LINK) {
shape->fill.gradientLink = nsvg__createGradientLink(ref->fill.gradientLink->id);
}
if (shape->stroke.type == NSVG_PAINT_GRADIENT_LINK) {
shape->stroke.gradientLink = nsvg__createGradientLink(ref->stroke.gradientLink->id);
}
*/
shape->next = NULL;
shape->flags = NSVG_VIS_DISPLAY | NSVG_VIS_VISIBLE; //use always visible
// Add to tail
if (p->image->shapes == NULL)
p->image->shapes = shape;
else
p->shapesTail->next = shape;
p->shapesTail = shape;
}
static void nsvg__parseTextSpan(NSVGparser* p, const char** dict)
{
NSVGattrib* attr = nsvg__getAttr(p);
NSVGtext* text = p->text;
float x = 0.f, y = 0.f, r = 0.f;
int i;
DBG("parse textSpan\n");
//there should be text->next with own attribs
for (i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "x") == 0) {
x = nsvg__parseCoordinate(p, dict[i+1], nsvg__actualOrigX(p), nsvg__actualWidth(p));
text->x = x;
// DBG("span posX=%f\n", x);
} else if (strcmp(dict[i], "y") == 0) {
y = nsvg__parseCoordinate(p, dict[i+1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
text->y = y;
// DBG("span posY=%f\n", y);
} else if (strcmp(dict[i], "font-size") == 0) {
r = nsvg__parseCoordinate(p, dict[i+1], 0.0f, nsvg__actualHeight(p));
text->fontSize = r;
// DBG("span fontSize=%f from=%s\n", r, dict[i+1]);
} else if (strcmp(dict[i], "font-style") == 0) {
// DBG("span: attr=%s value=%s\n", dict[i], dict[i+1]);
if (strstr(dict[i+1], "italic") != NULL) {
text->fontStyle = 'i';
} else if (strstr(dict[i+1], "bold") != NULL) {
text->fontStyle = 'b';
} else if (strstr(dict[i + 1], "light") != NULL) {
text->fontStyle = 'l';
} else {
text->fontStyle = 'n';
}
} else {
nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
}
if (attr->fontFace) {
text->fontFace = attr->fontFace;
}
if (attr->hasFill == 1) {
text->fontColor = attr->fillColor | ((int)(attr->fillOpacity * 255.f) << 24);
}
if (attr->hasStroke == 1) {
text->strokeColor = attr->strokeColor | ((int)(attr->strokeOpacity * 255.f) << 24);
text->strokeWidth = attr->strokeWidth;
}
if (text->fontStyle < 0x30) {
text->fontStyle = 'n';
}
}
//static int once = 0;
//static int once2 = 0;
static void nsvg__parseText(NSVGparser* p, const char** dict)
{
float x = 0.0f;
float y = 0.0f;
//float r = 0.0f;
// float xform[6];
NSVGattrib* attr = nsvg__getAttr(p);
int i;
DBG("text found\n");
NSVGtext* text = (NSVGtext*)AllocateZeroPool(sizeof(NSVGtext));
if (!text) {
return;
}
text->group = attr->group;
for (i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "x") == 0) {
x = nsvg__parseCoordinate(p, dict[i+1], nsvg__actualOrigX(p), nsvg__actualWidth(p));
} else if (strcmp(dict[i], "y") == 0) {
y = nsvg__parseCoordinate(p, dict[i+1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
} else {
// DBG("%d: attr=%s value=%s\n", i, dict[i], dict[i+1]);
nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
}
DBG("text: x=%f y=%f attr:Style=%hhX, size=%f, id=%s\n", x, y, attr->fontFace->fontStyle, attr->fontFace->fontSize, attr->id);
text->x = x;
text->y = y;
text->fontSize = attr->fontFace->fontSize;
text->fontStyle = attr->fontFace->fontStyle;
memcpy(text->id, attr->id, kMaxIDLength);
text->fontFace = attr->fontFace;
if (attr->hasFill == 1) {
text->fontColor = attr->fillColor | ((int)(attr->fillOpacity * 255.f) << 24);
}
if (attr->hasStroke == 1) {
text->strokeColor = attr->strokeColor | ((int)(attr->strokeOpacity * 255.f) << 24);
text->strokeWidth = attr->strokeWidth;
}
memcpy(text->xform, attr->xform, 6*sizeof(float));
if (text->fontStyle < 0x30) {
text->fontStyle = 'n';
}
DBG("required font %s required style=%c\n", text->fontFace->fontFamily, text->fontStyle);
//if the font is not registered then we have to load new one
NSVGfont *fontSVG = NULL;
NSVGfontChain *fontChain = fontsDB;
NSVGfontChain *fontChainSimilar = NULL;
while (fontChain) {
fontSVG = fontChain->font;
if (fontSVG) {
DBG("probe fontFamily=%s fontStyle=%c\n", fontSVG->fontFamily, fontSVG->fontStyle);
if (strcmp(fontSVG->fontFamily, text->fontFace->fontFamily) == 0) {
fontChainSimilar = fontChain;
DBG("font %s found\n", fontSVG->fontFamily);
if (fontSVG->fontStyle == text->fontStyle) {
break;
}
}
}
fontChain = fontChain->next;
}
if (!fontChain && fontChainSimilar) { //font with this style is not found but we have same font with other style
// DBG("found similar font with style=%c\n", fontChainSimilar->font->fontStyle);
fontChain = fontChainSimilar;
fontSVG = fontChain->font;
}
if (!fontChain) { // font not found in the chain
//then load it
UINT8 *FileData = NULL;
UINTN FileDataLength = 0;
NSVGparser *p1 = NULL;
EFI_STATUS Status;
// DBG("required font %s not found, try to load external\n", text->fontFace->fontFamily);
XStringW FontFileName = XStringW().takeValueFrom(text->fontFace->fontFamily) + L".svg"_XSW;
// DBG(" file name =%ls\n", FontFileName.wc_str());
Status = egLoadFile(ThemeX.ThemeDir, FontFileName.wc_str(), &FileData, &FileDataLength);
// DBG(" font %s loaded status=%lld, %s\n", text->fontFace->fontFamily, Status, strerror(Status));
if (!EFI_ERROR(Status)) {
p1 = nsvgParse((CHAR8*)FileData, 72, 1.0f); //later we will free parser p1
if (!p1) {
DBG("font %s not parsed\n", text->fontFace->fontFamily);
} else {
fontSVG = fontsDB->font; //last added during parse file data
text->font = fontSVG;
}
FreePool(FileData); //after load
FileData = NULL;
} else {
DBG("set embedded font\n");
text->font = p->font; //else embedded if present which is also double fontChain
}
} else {
DBG("set found font %s\n", fontSVG->fontFamily);
text->font = fontSVG; //the font found in fontChain
}
//instead of embedded
if (fontSVG && fontSVG->glyphs) {
NSVGgroup* group = attr->group;
while (group) {
if (strcmp(group->id, "MessageRow") == 0) {
if (!textFace[1].valid) {
//here we want to set text->font as p->font if text->groupID == MessageRow
p->font = fontSVG;
p->fontSize = text->fontSize;
p->fontColor = text->fontColor;
textFace[1].font = fontSVG;
textFace[1].size = (INTN)text->fontSize;
textFace[1].color = text->fontColor;
textFace[1].valid = TRUE;
DBG("set message->font=%s color=%X size=%f as in MessageRow\n", fontSVG->fontFamily, text->fontColor, text->fontSize);
}
break;
} else if (!ThemeX.Daylight && strcmp(group->id, "MessageRow_night") == 0) {
//replace ThemeX.Daylight settings
p->font = fontSVG;
p->fontSize = text->fontSize;
p->fontColor = text->fontColor;
textFace[1].font = fontSVG;
textFace[1].size = (INTN)text->fontSize;
textFace[1].color = text->fontColor;
textFace[1].valid = TRUE;
DBG("set message_night->font=%s color=%X size=%f as in MessageRow\n", fontSVG->fontFamily, text->fontColor, text->fontSize);
break;
} else if (strcmp(group->id, "MenuRows") == 0) {
if (!textFace[2].valid) {
textFace[2].font = fontSVG;
textFace[2].size = (INTN)text->fontSize;
textFace[2].color = text->fontColor;
textFace[2].valid = TRUE;
DBG("set menu->font=%s color=%X size=%f as in MenuRows\n", fontSVG->fontFamily, text->fontColor, text->fontSize);
}
break;
} else if (!ThemeX.Daylight && strcmp(group->id, "MenuRows_night") == 0) {
textFace[2].font = fontSVG;
textFace[2].size = (INTN)text->fontSize;
textFace[2].color = text->fontColor;
textFace[2].valid = TRUE;
break;
} else if (strcmp(group->id, "HelpRows") == 0) {
if (!textFace[0].valid) {
textFace[0].font = fontSVG;
textFace[0].size = (INTN)text->fontSize;
textFace[0].color = text->fontColor;
textFace[0].valid = TRUE;
DBG("set help->font=%s color=%X size=%f as in HelpRows\n", fontSVG->fontFamily, text->fontColor, text->fontSize);
}
break;
} else if (!ThemeX.Daylight && strstr(group->id, "HelpRows_night") != NULL) {
textFace[0].font = fontSVG;
textFace[0].size = (INTN)text->fontSize;
textFace[0].color = text->fontColor;
textFace[0].valid = TRUE;
DBG("set help_night->font=%s color=%X size=%f as in HelpRows\n", fontSVG->fontFamily, text->fontColor, text->fontSize);
break;
}
group = group->next;
}
}
//add to head
text->next = p->text;
p->text = text;
p->isText = TRUE;
}
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));
else if (strcmp(attr[i], "cy") == 0) cy = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
else 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));
else if (strcmp(attr[i], "cy") == 0) cy = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
else if (strcmp(attr[i], "rx") == 0) rx = fabsf(nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualWidth(p)));
else 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));
else if (strcmp(attr[i], "y1") == 0) y1 = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
else if (strcmp(attr[i], "x2") == 0) x2 = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigX(p), nsvg__actualWidth(p));
else 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);
}
/* Slice - I dont know what it should be
static void nsvg__parseIMAGE(NSVGparser* p, const char** attr)
{
float x = 0.0f;
float y = 0.0f;
float w = 0.0f;
float h = 0.0f;
int i;
const char *href = NULL;
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));
} else
if (strcmp(attr[i], "y") == 0) {
y = nsvg__parseCoordinate(p, attr[i+1], nsvg__actualOrigY(p), nsvg__actualHeight(p));
} else
if (strcmp(attr[i], "width") == 0) {
w = nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualWidth(p));
} else
if (strcmp(attr[i], "height") == 0) {
h = nsvg__parseCoordinate(p, attr[i+1], 0.0f, nsvg__actualHeight(p));
} else
if (strcmp(attr[i], "xlink:href") == 0) {
href = attr[i+1];
}
}
}
if (w != 0.0f && h != 0.0f) {
nsvg__resetPath(p);
NSVGattrib* attr = nsvg__getAttr(p);
float scale = 1.0f;
NSVGshape *shape, *cur, *prev;
if (href == NULL)
return;
shape = (NSVGshape*)AllocateZeroPool(sizeof(NSVGshape));
if (shape == NULL) return;
memcpy(shape->id, attr->id, sizeof shape->id);
memcpy(shape->title, attr->title, sizeof shape->title);
// DBG("shapeID=%s\n", shape->id);
shape->group = attr->group;
scale = nsvg__getAverageScale(attr->xform);
shape->opacity = attr->opacity;
shape->image_href = href;
p->plist = NULL;
shape->bounds[0] = x;
shape->bounds[1] = y;
shape->bounds[2] = x+w;
shape->bounds[3] = y+h;
nsvg__xformIdentity(shape->xform);
// Set flags
shape->flags = (attr->visible ? NSVG_VIS_DISPLAY | NSVG_VIS_VISIBLE : 0x00);
// Add to tail
prev = NULL;
cur = p->image->shapes;
while (cur != NULL) {
prev = cur;
cur = cur->next;
}
if (prev == NULL)
p->image->shapes = shape;
else
prev->next = shape;
return;
}
}
*/
//parse embedded PNG image
static void parseImage(NSVGparser* p, const char** dict)
{
// NSVGattrib* attr = nsvg__getAttr(p);
NSVGpattern *pt = NULL;
int i;
UINTN len = 0;
float w,h;
const char *href = NULL;
UINT8 *tmpData = NULL;
// EG_IMAGE *NewImage = NULL;
XImage *NewImage = new XImage;
for (i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "width") == 0) {
w = nsvg__parseCoordinate(p, dict[i+1], 0.0f, nsvg__actualWidth(p));
} else if (strcmp(dict[i], "height") == 0) {
h = nsvg__parseCoordinate(p, dict[i+1], 0.0f, nsvg__actualHeight(p));
} else if (strcmp(dict[i], "xlink:href") == 0) {
href = dict[i+1];
} else {
nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
}
if (!href || (strstr(href, "data:image/png;") == NULL)) {
return;
}
href = strstr(href, "base64,") + 7;
if (p->patternFlag) {
pt = p->patterns; //the last one
}
tmpData = (UINT8 *)Base64DecodeClover((char*)href, &len);
if (len == 0) {
DBG("image not decoded from base64\n");
}
// NewImage = egDecodePNG(tmpData, len, TRUE);
NewImage->FromPNG(tmpData, len);
pt->image = (void *)NewImage;
if (tmpData) {
FreePool(tmpData);
}
}
static void parsePattern(NSVGparser* p, const char** dict)
{
NSVGattrib* attr = nsvg__getAttr(p);
int i;
float w = 0.f, h=0.f;
NSVGpattern *pt;
for (i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "width") == 0) {
w = nsvg__parseCoordinate(p, dict[i+1], 0.0f, nsvg__actualWidth(p));
} else if (strcmp(dict[i], "height") == 0) {
h = nsvg__parseCoordinate(p, dict[i+1], 0.0f, nsvg__actualHeight(p));
} else {
nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
}
pt = (__typeof__(pt))AllocateZeroPool(sizeof(NSVGpattern));
AsciiStrCpyS(pt->id, 64, attr->id);
pt->width = w;
pt->height = h;
pt->next = p->patterns;
p->patterns = pt;
}
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) {
char* Next = 0;
AsciiStrToFloat(attr[i + 1], &Next, &p->viewMinx);
AsciiStrToFloat((const char*)Next, &Next, &p->viewMiny);
AsciiStrToFloat((const char*)Next, &Next, &p->viewWidth);
AsciiStrToFloat((const char*)Next, &Next, &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*)AllocateZeroPool(sizeof(NSVGgradientData));
if (grad == NULL) return;
//defaults
grad->units = NSVG_USER_SPACE; //NSVG_OBJECT_SPACE;
grad->type = type;
grad->ditherCoarse = 0; //default value
if (grad->type == NSVG_PAINT_LINEAR_GRADIENT) {
grad->direction.linear.x1 = nsvg__coord(0.0f, NSVG_UNITS_PERCENT);
grad->direction.linear.y1 = nsvg__coord(0.0f, NSVG_UNITS_PERCENT);
grad->direction.linear.x2 = nsvg__coord(100.0f, NSVG_UNITS_PERCENT);
grad->direction.linear.y2 = nsvg__coord(100.0f, NSVG_UNITS_PERCENT);
} else if (grad->type == NSVG_PAINT_RADIAL_GRADIENT) {
grad->direction.radial.cx = nsvg__coord(50.0f, NSVG_UNITS_PERCENT);
grad->direction.radial.cy = nsvg__coord(50.0f, NSVG_UNITS_PERCENT);
grad->direction.radial.r = nsvg__coord(50.0f, NSVG_UNITS_PERCENT);
} else if (grad->type == NSVG_PAINT_CONIC_GRADIENT) {
grad->direction.radial.cx = nsvg__coord(50.0f, NSVG_UNITS_PERCENT);
grad->direction.radial.cy = nsvg__coord(50.0f, NSVG_UNITS_PERCENT);
grad->direction.radial.r = nsvg__coord(50.0f, NSVG_UNITS_PERCENT);
}
nsvg__xformIdentity(grad->xform);
for (i = 0; attr[i]; i += 2) {
if (strcmp(attr[i], "xml:id") == 0) {
// DBG("xml:id ?\n");
strncpy(grad->id, attr[i+1], 63);
grad->id[63] = '\0';
} else 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->direction.radial.cx = nsvg__parseCoordinateRaw(attr[i + 1]);
} else if (strcmp(attr[i], "cy") == 0) {
grad->direction.radial.cy = nsvg__parseCoordinateRaw(attr[i + 1]);
} else if (strcmp(attr[i], "r") == 0) {
grad->direction.radial.r = nsvg__parseCoordinateRaw(attr[i + 1]);
} else if (strcmp(attr[i], "fx") == 0) {
grad->direction.radial.fx = nsvg__parseCoordinateRaw(attr[i + 1]);
} else if (strcmp(attr[i], "fy") == 0) {
grad->direction.radial.fy = nsvg__parseCoordinateRaw(attr[i + 1]);
} else if (strcmp(attr[i], "x1") == 0) {
grad->direction.linear.x1 = nsvg__parseCoordinateRaw(attr[i + 1]);
} else if (strcmp(attr[i], "y1") == 0) {
grad->direction.linear.y1 = nsvg__parseCoordinateRaw(attr[i + 1]);
} else if (strcmp(attr[i], "x2") == 0) {
grad->direction.linear.x2 = nsvg__parseCoordinateRaw(attr[i + 1]);
} else if (strcmp(attr[i], "y2") == 0) {
grad->direction.linear.y2 = nsvg__parseCoordinateRaw(attr[i + 1]);
} else if (strcmp(attr[i], "clover:ditherCoarse") == 0) {
grad->ditherCoarse = getIntegerDict(attr[i + 1]);
} else if (strcmp(attr[i], "clover:conic") == 0) {
int conic = getIntegerDict(attr[i + 1]);
if (conic > 0) {
grad->type = NSVG_PAINT_CONIC_GRADIENT;
}
} 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** dict)
{
NSVGattrib* curAttr = nsvg__getAttr(p);
NSVGgradientData* grad;
NSVGgradientStop* stop;
int i, idx = 0, nsize;
curAttr->stopOffset = 0.f;
curAttr->stopColor = 0;
curAttr->stopOpacity = 1.0f;
for (i = 0; dict[i]; i += 2) {
nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
// Add stop to the last gradient.
grad = p->gradients;
if (grad == NULL) return;
nsize = sizeof(NSVGgradientStop) * grad->nstops;
if (nsize == 0) {
grad->stops = (NSVGgradientStop*)AllocatePool(sizeof(NSVGgradientStop));
grad->nstops = 1;
} else {
grad->nstops++;
grad->stops = (NSVGgradientStop*)ReallocatePool(nsize, sizeof(NSVGgradientStop)*grad->nstops, grad->stops);
}
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--)
memcpy(&grad->stops[i], &grad->stops[i-1], sizeof(NSVGgradientStop));
}
stop = &grad->stops[idx];
stop->color = ((unsigned int)(curAttr->stopOpacity*255) << 24) | curAttr->stopColor;
stop->offset = curAttr->stopOffset;
}
static void nsvg__parseSymbol(NSVGparser* p, const char** dict)
{
NSVGsymbol* symbol;
NSVGattrib* curAttr = nsvg__getAttr(p);
int i;
symbol = (NSVGsymbol*)AllocateZeroPool(sizeof(NSVGsymbol));
for (i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "viewBox") == 0) {
char* Next = 0;
AsciiStrToFloat(dict[i + 1], &Next, &symbol->viewBox[0]);
AsciiStrToFloat((const char*)Next, &Next, &symbol->viewBox[1]);
AsciiStrToFloat((const char*)Next, &Next, &symbol->viewBox[2]);
AsciiStrToFloat((const char*)Next, &Next, &symbol->viewBox[3]);
} else nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
AsciiStrCpyS(symbol->id, 64, curAttr->id);
// memcpy(symbol->xform, curAttr->xform, 6*sizeof(float));
symbol->next = p->symbols;
p->symbols = symbol;
}
static void nsvg__parseGroup(NSVGparser* p, const char** dict)
{
NSVGgroup* group;
NSVGattrib* oldAttr = nsvg__getAttr(p);
nsvg__pushAttr(p);
NSVGattrib* curAttr = nsvg__getAttr(p);
int i;
int visSet = 0;
if (!curAttr) {
return;
}
// DBG("parse group\n");
group = (NSVGgroup*)AllocateZeroPool(sizeof(NSVGgroup));
// if (curAttr->id[0] == '\0') //skip anonymous groups
// return;
for (i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "visibility") == 0) {
visSet = 1;
if (strcmp(dict[i+1], "hidden") == 0) {
group->visibility &= ~NSVG_VIS_VISIBLE;
} else if (strcmp(dict[i+1], "visible") == 0) {
group->visibility |= NSVG_VIS_VISIBLE;
}
} else nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
AsciiStrCpyS(group->id, 64, curAttr->id);
// DBG("parsed groupID=%s\n", group->id);
if (oldAttr != NULL) {
group->next = oldAttr->group;
}
curAttr->group = group;
if (!visSet) {
if (group->next != NULL) {
group->visibility = group->next->visibility;
} else {
group->visibility = NSVG_VIS_VISIBLE;
}
}
}
//parse Clover settings for theme
void XTheme::parseTheme(void* parser, const char** dict)
{
NSVGparser* p = (NSVGparser*)parser;
BOOLEAN found = FALSE;
UINT32 Color = 0x80808080; //default value
for (int i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "SelectionOnTop") == 0) {
SelectionOnTop = getIntegerDict(dict[i+1]) > 0;
} else if (strcmp(dict[i], "BadgeOffsetX") == 0) {
BadgeOffsetX = getIntegerDict(dict[i + 1]);
} else if (strcmp(dict[i], "BadgeOffsetY") == 0) {
BadgeOffsetY = getIntegerDict(dict[i + 1]);
} else if (strcmp(dict[i], "LayoutBannerOffset") == 0) {
LayoutBannerOffset = getIntegerDict(dict[i + 1]);
} else if (strcmp(dict[i], "LayoutButtonOffset") == 0) {
LayoutButtonOffset = getIntegerDict(dict[i + 1]);
} else if (strcmp(dict[i], "NonSelectedGrey") == 0) {
NonSelectedGrey = getIntegerDict(dict[i + 1]) > 0;
} else if (strcmp(dict[i], "CharWidth") == 0) {
CharWidth = getIntegerDict(dict[i + 1]);
} else if (strcmp(dict[i], "BackgroundDark") == 0) {
BackgroundDark = getIntegerDict(dict[i + 1]) > 0;
} else if (strcmp(dict[i], "BackgroundSharp") == 0) {
BackgroundSharp = getIntegerDict(dict[i + 1]);
} else if (strcmp(dict[i], "BackgroundScale") == 0) {
BackgroundScale = imNone;
if (strstr(dict[i+1], "scale") != NULL) {
BackgroundScale = imScale;
}
if (strstr(dict[i+1], "crop") != NULL) {
BackgroundScale = imCrop;
}
if (strstr(dict[i+1], "tile") != NULL) {
BackgroundScale = imTile;
}
} else if (strcmp(dict[i], "Badges") == 0) {
HideBadges = 0;
if (strstr(dict[i+1], "show") != NULL) {
HideBadges |= HDBADGES_SHOW;
}
if (strstr(dict[i+1], "swap") != NULL) {
HideBadges |= HDBADGES_SWAP;
}
if (strstr(dict[i+1], "inline") != NULL) {
HideBadges |= HDBADGES_INLINE;
}
} else if (strcmp(dict[i], "BadgeScale") == 0) {
BadgeScale = getIntegerDict(dict[i + 1]);
} else if (strcmp(dict[i], "SelectionColor") == 0) {
Color = getIntegerDict(dict[i + 1]);
if (ThemeX.Daylight) {
SelectionColor = Color;
}
} else if (strcmp(dict[i], "SelectionColor_night") == 0) {
found = TRUE;
if (!ThemeX.Daylight) {
SelectionColor = getIntegerDict(dict[i + 1]);
}
} else if (strcmp(dict[i], "VerticalLayout") == 0) {
VerticalLayout = getIntegerDict(dict[i + 1]) > 0;
} else if (strcmp(dict[i], "BootCampStyle") == 0) {
BootCampStyle = getIntegerDict(dict[i + 1]) > 0;
} else if (strcmp(dict[i], "AnimeFrames") == 0) {
NumFrames = getIntegerDict(dict[i + 1]);
if (NumFrames == 0xFFFF) {
NumFrames = 0;
}
} else if (strcmp(dict[i], "FrameTime") == 0) {
FrameTime = getIntegerDict(dict[i + 1]);
} else nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
if (!found) {
SelectionColor = Color;
}
}
// parse embedded font
static void nsvg__parseFont(NSVGparser* p, const char** dict)
{
int i;
NSVGfont* font;
NSVGattrib* curAttr = nsvg__getAttr(p);
if (!curAttr) {
return;
}
font = (__typeof__(font))AllocateZeroPool(sizeof(*font));
for (i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "horiz-adv-x") == 0) {
font->horizAdvX = (int)AsciiStrDecimalToUintn(dict[i+1]);
} else if (strcmp(dict[i], "font-family") == 0) { //usually absent here
AsciiStrCpyS(font->fontFamily, kMaxIDLength, dict[i+1]);
} else {
nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
}
AsciiStrCpyS(font->id, kMaxIDLength, curAttr->id);
if (!font->horizAdvX) {
font->horizAdvX = 1000;
}
DBG("found font id=%s family=%s\n", font->id, font->fontFamily);
NSVGfontChain* fontChain = (__typeof__(fontChain))AllocatePool(sizeof(*fontChain));
fontChain->font = font;
fontChain->next = fontsDB;
p->font = font;
fontsDB = fontChain;
}
static void nsvg__parseFontFace(NSVGparser* p, const char** dict)
{
int i;
if (!p) {
DBG("no parser\n");
return;
}
NSVGfont* font = p->font; //if present??? assumed good svg structure
if (!font) {
return;
}
// DBG("begin parse font face, font->id=%s\n", font->id);
for (i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "font-family") == 0) {
AsciiStrCpyS(font->fontFamily, 64, dict[i+1]);
DBG("font-family %s\n", font->fontFamily);
}
else if (strcmp(dict[i], "font-weight") == 0) {
float fontWeight = 0.0f;
AsciiStrToFloat(dict[i+1], NULL /*&Next*/, &fontWeight);
font->fontWeight = fontWeight;
}
else if (strcmp(dict[i], "font-style") == 0) {
if (strstr(dict[i+1], "italic") != NULL) {
font->fontStyle = 'i';
} else if (strstr(dict[i+1], "bold") != NULL) {
font->fontStyle = 'b';
} else if (strstr(dict[i + 1], "light") != NULL) {
font->fontStyle = 'l';
} else {
font->fontStyle = 'n'; //normal
}
}
else if (strcmp(dict[i], "units-per-em") == 0) {
float unitsPerEm = 0.0f;
AsciiStrToFloat(dict[i+1], NULL /*&Next*/, &unitsPerEm);
font->unitsPerEm = unitsPerEm;
}
else if (strcmp(dict[i], "ascent") == 0) {
font->ascent = (int)AsciiStrDecimalToUintn(dict[i+1]);
}
else if (strcmp(dict[i], "descent") == 0) {
font->descent = (int)AsciiStrDecimalToUintn(dict[i+1]);
}
else if (strcmp(dict[i], "x-height") == 0) {
font->xHeight = (int)AsciiStrDecimalToUintn(dict[i+1]);
}
else if (strcmp(dict[i], "cap-height") == 0) {
font->capHeight = (int)AsciiStrDecimalToUintn(dict[i+1]);
}
else if (strcmp(dict[i], "underline-thickness") == 0) {
font->underlineThickness = (int)AsciiStrDecimalToUintn(dict[i+1]);
}
else if (strcmp(dict[i], "underline-position") == 0) {
font->underlinePosition = (int)AsciiStrDecimalToUintn(dict[i+1]);
}
else if (strcmp(dict[i], "slope") == 0) {
font->slope = (int)AsciiStrDecimalToUintn(dict[i+1]);
}
else if (strcmp(dict[i], "bbox") == 0) {
char* Next = 0;
AsciiStrToFloat(dict[i + 1], &Next, &font->bbox[0]);
AsciiStrToFloat((const char*)Next, &Next, &font->bbox[1]);
AsciiStrToFloat((const char*)Next, &Next, &font->bbox[2]);
AsciiStrToFloat((const char*)Next, &Next, &font->bbox[3]);
// DumpFloat2("font bbox=", font->bbox, 4);
}
else if (strcmp(dict[i], "unicode-range") == 0) {
const char * a = dict[i + 1];
if (*a == 'U') {
font->unicodeRange[0] = (int)AsciiStrHexToUintn(a+2);
font->unicodeRange[1] = (int)AsciiStrHexToUintn(a+7);
}
} else nsvg__parseAttr(p, dict[i], dict[i + 1]);
}
if (font->unitsPerEm < 1.f) {
font->unitsPerEm = 1000.f;
}
if ((font->bbox[3] - font->bbox[1]) < 1.) {
font->bbox[0] = 0;
font->bbox[1] = 0;
font->bbox[2] = font->unitsPerEm;
font->bbox[3] = font->unitsPerEm;
}
if (font->fontWeight < 1.f) {
font->fontWeight = font->unitsPerEm;
}
if (font->fontStyle < 0x30) {
font->fontStyle = 'n';
}
}
CHAR16 nsvg__parseUnicode(const char *s)
{
CHAR16 A = L'\0';
if (*s != '&') {
if (strlen(s) == 2) {
A = (*s << 8) + *(s+1);
} else {
A = *s;
}
} else if (strstr(s, "&#x") !=0 ) {
s += 3;
while (IS_HEX(*s) || IS_DIGIT(*s)) {
A <<= 4;
if (IS_DIGIT(*s)) {
A += *s - 0x30;
} else if (IS_UPPER(*s)) {
A += *s - 0x41 + 10;
} else {
A += *s - 0x61 + 10;
}
s++;
}
} else if (strstr(s, "&amp;") !=0 ) {
A = 0x26; //&
} else if (strstr(s, "&quot;") !=0 ) {
A = 0x22; //"
} else if (strstr(s, "&lt;") !=0 ) {
A = 0x3C; //<
} else if (strstr(s, "&gt;") !=0 ) {
A = 0x3E; //>
} else if (strstr(s, "&nbsp;") !=0 ) {
A = 0xA0; //>
} else if (strstr(s, "&copy;") !=0 ) {
A = 0xA9; //>
}
return A;
}
static void nsvg__parseGlyph(NSVGparser* p, const char** dict, BOOLEAN missing)
{
//glyph-name="E_d" unicode="Ed" horiz-adv-x="1289" d="M679 ..."/>
/*
typedef struct NSVGglyph {
char name[16];
CHAR16 unicode;
int horizAdvX;
NSVGpath* path;
struct NSVGglyph *next;
} NSVGglyph;
*/
int i;
NSVGglyph *glyph;
if (!p) {
return;
}
p->plist = NULL;
glyph = (NSVGglyph*)AllocateZeroPool(sizeof(NSVGglyph));
if (!glyph) {
return;
}
for (i = 0; dict[i]; i += 2) {
if (!nsvg__parseAttr(p, dict[i], dict[i + 1])) {
if (strcmp(dict[i], "unicode") == 0) {
glyph->unicode = nsvg__parseUnicode(dict[i+1]);
} else if (strcmp(dict[i], "horiz-adv-x") == 0) {
glyph->horizAdvX = (int)AsciiStrDecimalToUintn(dict[i+1]);
} else if (strcmp(dict[i], "glyph-name") == 0) {
strncpy(glyph->name, dict[i+1], 16);
glyph->name[15] = '\0';
if (strcmp(dict[i+1], "nonmarkingreturn") == 0) {
glyph->unicode = L'\n';
} else if (strcmp(dict[i+1], ".notdef") == 0) {
missing = TRUE;
}
}
}
}
nsvg__parsePath(p, dict);
glyph->path = p->plist; // plist means PathList ;)
p->plist = 0; //lastPath;
if (p->font) {
if (missing) {
p->font->missingGlyph = glyph;
if (!glyph->horizAdvX && p->font->horizAdvX) {
p->font->missingGlyph->horizAdvX = p->font->horizAdvX;
}
} else {
if (!glyph->horizAdvX) {
if (p->font->missingGlyph) {
glyph->horizAdvX = p->font->missingGlyph->horizAdvX;
} else if (p->font->horizAdvX) {
glyph->horizAdvX = p->font->horizAdvX;
}
}
glyph->next = p->font->glyphs;
p->font->glyphs = glyph;
}
}
// DBG("glyph %X parsed\n", glyph->unicode);
}
static void nsvg__startElement(void* ud, const char* el, const char** dict)
{
NSVGparser* p = (NSVGparser*)ud;
if (!p) {
return;
}
if (strcmp(el, "linearGradient") == 0) {
nsvg__parseGradient(p, dict, NSVG_PAINT_LINEAR_GRADIENT);
} else if (strcmp(el, "radialGradient") == 0) {
nsvg__parseGradient(p, dict, NSVG_PAINT_RADIAL_GRADIENT);
} else if (strcmp(el, "conicGradient") == 0) {
nsvg__parseGradient(p, dict, NSVG_PAINT_CONIC_GRADIENT);
} else if (strcmp(el, "stop") == 0) {
nsvg__parseGradientStop(p, dict);
} else if (strcmp(el, "font") == 0) {
nsvg__parseFont(p, dict);
} else if (strcmp(el, "font-face") == 0) {
nsvg__parseFontFace(p, dict);
} else if (strcmp(el, "missing-glyph") == 0) {
nsvg__parseGlyph(p, dict, TRUE);
} else if (strcmp(el, "glyph") == 0) {
nsvg__parseGlyph(p, dict, FALSE);
} else if (strcmp(el, "style") == 0) {
p->styleFlag = 1;
} else if (strcmp(el, "g") == 0) {
// nsvg__pushAttr(p);
nsvg__parseGroup(p, dict);
} else if (strcmp(el, "text") == 0) {
nsvg__pushAttr(p);
p->isText = 1;
nsvg__parseText(p, dict);
} else if (strcmp(el, "tspan") == 0) {
nsvg__pushAttr(p);
nsvg__parseTextSpan(p, dict);
nsvg__popAttr(p);
} else if (strcmp(el, "path") == 0) {
if (p->pathFlag) { // Do not allow nested paths.
return;
}
nsvg__pushAttr(p);
p->pathFlag = 1;
p->shapeFlag = 1;
nsvg__parsePath(p, dict);
nsvg__addShape(p);
nsvg__popAttr(p);
} else if (strcmp(el, "rect") == 0) {
nsvg__pushAttr(p);
p->shapeFlag = 1;
nsvg__parseRect(p, dict);
nsvg__popAttr(p);
} else if (strcmp(el, "circle") == 0) {
nsvg__pushAttr(p);
p->shapeFlag = 1;
nsvg__parseCircle(p, dict);
nsvg__popAttr(p);
} else if (strcmp(el, "ellipse") == 0) {
nsvg__pushAttr(p);
p->shapeFlag = 1;
nsvg__parseEllipse(p, dict);
nsvg__popAttr(p);
} else if (strcmp(el, "line") == 0) {
nsvg__pushAttr(p);
p->shapeFlag = 1;
nsvg__parseLine(p, dict);
nsvg__popAttr(p);
} else if (strcmp(el, "polyline") == 0) {
nsvg__pushAttr(p);
p->shapeFlag = 1;
nsvg__parsePoly(p, dict, 0);
nsvg__popAttr(p);
} else if (strcmp(el, "polygon") == 0) {
nsvg__pushAttr(p);
p->shapeFlag = 1;
nsvg__parsePoly(p, dict, 1);
nsvg__popAttr(p);
} else if (strcmp(el, "use") == 0) {
nsvg__pushAttr(p);
p->shapeFlag = 1;
nsvg__parseUse(p, dict);
nsvg__popAttr(p);
} else if (strcmp(el, "defs") == 0) {
p->defsFlag = 1;
} else if (strcmp(el, "symbol") == 0) {
nsvg__pushAttr(p);
p->symbolFlag = 1;
nsvg__parseSymbol(p, dict);
} else if (strcmp(el, "svg") == 0) {
nsvg__pushAttr(p);
nsvg__parseSVG(p, dict);
} else if (strcmp(el, "clipPath") == 0) {
int i;
nsvg__pushAttr(p);
for (i = 0; dict[i]; i += 2) {
if (strcmp(dict[i], "id") == 0) {
p->clipPath = nsvg__findClipPath(p, dict[i+1]);
break;
}
}
} else if (strcmp(el, "title") == 0) {
p->titleFlag = 1;
} else if (strcmp(el, "image") == 0) {
// nsvg__pushAttr(p);
// nsvg__parseIMAGE(p, dict);
parseImage(p, dict);
// nsvg__popAttr(p);
} else if (strcmp(el, "pattern") == 0) {
parsePattern(p, dict);
p->patternFlag = 1;
} else if (strcmp(el, "clover:theme") == 0) {
ThemeX.parseTheme((void*)p, dict);
} else {
strncpy(p->unknown, el, 63);
}
}
static void nsvg__endElement(void* ud, const char* el)
{
NSVGparser* p = (NSVGparser*)ud;
// NSVGattrib* curAttr = nsvg__getAttr(p);
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, "pattern") == 0) {
p->patternFlag = 0;
} else if (strcmp(el, "symbol") == 0) {
// nsvg__getSymbolBounds(p); //no sense
nsvg__popAttr(p);
p->symbolFlag = 0;
} else if (strcmp(el, "svg") == 0) {
nsvg__popAttr(p);
} else if (strcmp(el, "clipPath") == 0) {
if (p->clipPath != NULL) {
NSVGshape* shape = p->clipPath->shapes;
while (shape != NULL) {
shape->fill.type = NSVG_PAINT_COLOR;
shape->stroke.type = NSVG_PAINT_NONE;
shape = shape->next;
}
p->clipPath = NULL;
}
nsvg__popAttr(p);
} else if (strcmp(el, "text") == 0) {
nsvg__popAttr(p);
p->isText = 0;
// } else if (strcmp(el, "tspan") == 0) {
// nsvg__popAttr(p);
} else if (strcmp(el, "title") == 0) {
p->titleFlag = 0;
} else if (strcmp(el, "style") == 0) {
p->styleFlag = 0;
} else if (strcmp(el, "rect") == 0 ||
strcmp(el, "circle") == 0 ||
strcmp(el, "ellipse") == 0 ||
strcmp(el, "line") == 0 ||
strcmp(el, "polyline") == 0 ||
strcmp(el, "polygon") == 0 ||
strcmp(el, "use") == 0
) {
p->shapeFlag = 0;
} else if (strcmp(el, p->unknown) == 0) {
// p->defsFlag = 0;
}
}
float addLetter(NSVGparser* p, CHAR16 letter, float x, float y, float scale, UINT32 color)
{
float x1 = x; //initial position
// INTN y = 0;
NSVGshape *shape;
NSVGattrib* attr = nsvg__getAttr(p);
NSVGglyph* g;
if (!p->text || !p->text->font) {
DBG("font absent\n");
return x;
}
if ( scale == 0 ) { // doing "if (!scale)" generates a warning
return x;
}
shape = (NSVGshape*)AllocateZeroPool(sizeof(NSVGshape));
if (shape == NULL) return x;
g = p->text->font->glyphs;
while (g) {
if (g->unicode == letter) {
shape->paths = g->path;
/*
if (shape->paths) {
if (letter == L'C') {
DBG("Found glyph %X, point[0]=(%d,%d) points=%d\n", letter,
(int)shape->paths->pts[0], (int)shape->paths->pts[1], shape->paths->npts);
shape->debug = TRUE;
}
} */
break;
}
g = g->next;
}
if (!g) {
//missing glyph
g = p->text->font->missingGlyph;
shape->paths = g->path;
// if (shape->paths) {
// DBG("Missing glyph %X, path[0]=%d\n", letter, (int)shape->paths->pts[0]);
// }
}
if (!shape->paths) {
if (g) {
x1 += g->horizAdvX * scale; //user space
}
if (shape) {
FreePool(shape);
}
return x1;
}
//fill shape
// DBG("fill shape\n"); //ssss
shape->group = p->text->group;
shape->id[0] = (char)(letter & 0xff);
shape->id[1] = (char)((letter >> 8) & 0xff);
shape->strokeWidth = p->text->strokeWidth / scale;
shape->strokeLineJoin = attr->strokeLineJoin;
shape->strokeLineCap = attr->strokeLineCap;
shape->miterLimit = attr->miterLimit;
shape->fillRule = NSVG_FILLRULE_NONZERO;
shape->opacity = 1.f;
shape->fill.type = NSVG_PAINT_NONE;
if (attr->hasFill == 1) {
shape->fill.type = NSVG_PAINT_COLOR;
shape->fill.paint.color = color;
}
shape->stroke.type = NSVG_PAINT_NONE;
if (attr->hasStroke == 1) {
shape->stroke.type = NSVG_PAINT_COLOR;
shape->stroke.paint.color = p->text->strokeColor;
}
shape->flags = NSVG_VIS_DISPLAY | NSVG_VIS_VISIBLE;
shape->isText = TRUE;
nsvg__xformIdentity(shape->xform);
//scale convert shape from glyph size to user's font-size
shape->xform[0] = scale; //1.f;
shape->xform[3] = -scale; //-1.f; //glyphs are mirrored by Y
shape->xform[4] = x - p->text->font->bbox[0] * scale;
shape->xform[5] = y + p->text->font->bbox[3] * scale; // Y3 is a floor for a letter, so Y+x[5]=realY
// then apply text transform
nsvg__xformMultiply(shape->xform, p->text->xform);
// if (letter == L'C') {
// DBG("bbox0=%f ", p->text->font->bbox[0]);
// DBG("bbox3=%f \n", p->text->font->bbox[3]);
// DumpFloat2("glyph xform:", shape->xform, 6);
// DBG("stroke-color=%X ", shape->stroke.paint.color);
// DBG("stroke-width=%f\n", shape->strokeWidth);
// }
//in glyph units
shape->bounds[0] = p->text->font->bbox[0] + x/scale; //x + p->font->bbox[0] * scale;
shape->bounds[1] = p->text->font->bbox[1] + y/scale; //y + p->font->bbox[1] * scale;
shape->bounds[2] = p->text->font->bbox[2] + x/scale; //x + p->font->bbox[2] * scale;
shape->bounds[3] = p->text->font->bbox[3] + y/scale; //y + p->font->bbox[3] * scale;
// if (letter == L'C') {
// DumpFloat2("glyph bounds in text", shape->bounds, 4);
// }
// if (color == NSVG_RGBA(0x80, 0xFF, 0, 255)) {
// DBG("glyph code=%X\n", letter);
// DumpFloat2("glyph xform", shape->xform, 6);
// DumpFloat2("glyph bounds", shape->bounds, 4);
// DBG("glyph width=%d\n", g->horizAdvX);
// }
x1 += g->horizAdvX * scale; //position for next letter in user's units
// Add to tail
if (p->image->shapes == NULL)
p->image->shapes = shape;
else
p->shapesTail->next = shape;
p->shapesTail = shape;
return x1;
}
static void addString(NSVGparser* p, char* s)
{
//text support should create shape for each letter
UINTN len = strlen(s);
UINTN i;
if (!p->text->font) {
DBG("font for the text is not loaded\n");
return; //use external fonts
}
// DBG("the text %ls uses font %s\n", s, p->text->fontFace->fontFamily);
//calculate letter size
float sy = p->text->font->bbox[3] - p->text->font->bbox[1];
sy = (sy <= 0.f)? p->text->font->fontWeight: sy;
//required height
float h = p->text->fontSize;
float scale = h / sy; //scale to font size
//text position based on ?
float x = p->text->x; //user space
float y = p->text->y - h;
for (i = 0; i < len; i++) {
CHAR16 letter = 0;
s = GetUnicodeChar(s, &letter);
if (!letter) {
break;
}
x = addLetter(p, letter, x, y, scale, p->text->fontColor);
}
}
static void nsvg__content(void* ud, char* s)
{
NSVGparser* p = (NSVGparser*)ud;
if (p->titleFlag) {
int len = (int)strlen(s);
NSVGshape *shape = p->image->shapes;
const int lim = sizeof(shape->title);
if(len > lim-1)
len = lim-1;
if (p->shapeFlag) {
while (shape->next)
shape = shape->next;
if (shape) {
memcpy(shape->title, s, len);
memset(shape->title + len, 0, lim-len);
}
} else { //not shape
NSVGattrib* attr = nsvg__getAttr(p);
memcpy(attr->title, s, len);
memset(attr->title + len, 0, lim-len);
}
} else
if (p->styleFlag) {
// decrease string to cdata content (if present)
char* rv = strstr(s, "<![CDATA[");
if (rv) {
s = rv + 9;
rv = strstr(s, "]]>");
if (!rv)
return;
else *rv = '\0';
}
//.cls-1{fill:url(#linear-gradient);}
const char* start = s;
int state = 0;
while (*s) {
char c = *s;
if (state == 1) {
if (nsvg__isspace(c) || c == '{') {
NSVGstyles* next = p->styles;
p->styles = (NSVGstyles*)AllocatePool(sizeof(NSVGstyles));
p->styles->next = next;
p->styles->name = nsvg__strndup(start, (size_t)(s - start)); //style->name=cls-1
p->styles->description = NULL;
if (c == '{') {
start = s + 1;
state = 3;
} else {
state = 2;
}
}
} else if (state == 2 && c == '{') {
start = s + 1;
state = 3;
} else if (state == 3 && c == '}') {
p->styles->description = nsvg__strndup(start, (size_t)(s - start));
// nsvg__parseStyle(p, p->styles->description);
state = 0;
} else if (state == 0 && c == '.') {
start = s + 1;
state = 1;
}
s++;
}
}
else if (p->isText) { //text support
addString(p, s);
}
}
static void nsvg__assignGradients(NSVGparser* p, NSVGshape* shapes)
{
for (NSVGshape* shape = shapes; shape != NULL; shape = shape->next) {
if (shape->fill.type == NSVG_PAINT_GRADIENT_LINK) {
NSVGgradientLink* link = shape->fill.paint.gradientLink;
shape->fill.paint.gradient = nsvg__createGradient(p, shape, link, &shape->fill.type);
if (link != NULL) {
FreePool(link);
}
if (shape->fill.paint.gradient == NULL) {
shape->fill.type = NSVG_PAINT_NONE;
}
}
if (shape->stroke.type == NSVG_PAINT_GRADIENT_LINK) {
NSVGgradientLink* link = shape->stroke.paint.gradientLink;
shape->stroke.paint.gradient = nsvg__createGradient(p, shape, link, &shape->stroke.type);
if (link != NULL) {
FreePool(link);
}
if (shape->stroke.paint.gradient == NULL) {
shape->stroke.type = NSVG_PAINT_NONE;
}
}
}
}
static char *nsvg__strndup(const char *s, size_t n)
{
char *result;
size_t len = strlen(s);
if (n < len)
len = n;
result = (char *)AllocateCopyPool(len + 1, s);
if (!result)
return 0;
result[len] = '\0';
return result;
}
void takeXformBounds(NSVGshape *shape, float *xform, float *bounds)
{
float newBounds[8]; //(x1, y1), (x2, y2), (x2, y1), (x1, y2)
nsvg__xformPoint(&newBounds[0], &newBounds[1], shape->bounds[0], shape->bounds[1], xform);
nsvg__xformPoint(&newBounds[2], &newBounds[3], shape->bounds[2], shape->bounds[3], xform);
nsvg__xformPoint(&newBounds[4], &newBounds[5], shape->bounds[2], shape->bounds[1], xform);
nsvg__xformPoint(&newBounds[6], &newBounds[7], shape->bounds[0], shape->bounds[3], xform);
//we have to take into account all points, as x1 can be > x2 etc.
bounds[0] = nsvg__minf(bounds[0], newBounds[0]);
bounds[0] = nsvg__minf(bounds[0], newBounds[2]);
bounds[0] = nsvg__minf(bounds[0], newBounds[4]);
bounds[0] = nsvg__minf(bounds[0], newBounds[6]);
bounds[1] = nsvg__minf(bounds[1], newBounds[1]);
bounds[1] = nsvg__minf(bounds[1], newBounds[3]);
bounds[1] = nsvg__minf(bounds[1], newBounds[5]);
bounds[1] = nsvg__minf(bounds[1], newBounds[7]);
bounds[2] = nsvg__maxf(bounds[2], newBounds[0]);
bounds[2] = nsvg__maxf(bounds[2], newBounds[2]);
bounds[2] = nsvg__maxf(bounds[2], newBounds[4]);
bounds[2] = nsvg__maxf(bounds[2], newBounds[6]);
bounds[3] = nsvg__maxf(bounds[3], newBounds[1]);
bounds[3] = nsvg__maxf(bounds[3], newBounds[3]);
bounds[3] = nsvg__maxf(bounds[3], newBounds[5]);
bounds[3] = nsvg__maxf(bounds[3], newBounds[7]);
}
//image bounds for a shape group
//bounds inited before use, called from nsvgParse
//assumed each shape already has bounds calculated.
int nsvg__shapesBound(/*NSVGimage* image,*/ NSVGshape *shapes, float* bounds)
{
NSVGshape *shape, *shapeLink;
float xform[6];
float xform2[6];
int count = 0;
int visibility;
for (shapeLink = shapes; shapeLink != NULL; shapeLink = shapeLink->next) {
memcpy(&xform[0], shapeLink->xform, sizeof(float)*6);
visibility = (shapeLink->flags & NSVG_VIS_VISIBLE); //check origin visibility, not link
if (/*shapeLink->isText ||*/ !visibility) { //dont count text
continue;
}
shape = shapeLink->link; //this is <use>
if (!shape) {
takeXformBounds(shapeLink, &xform[0], bounds);
}
while (shape) { //take bounds from symbol's shapes
memcpy(xform2, xform, sizeof(float)*6);
nsvg__xformPremultiply(&xform2[0], shape->xform);
takeXformBounds(shape, &xform2[0], bounds);
shape = shape->next;
}
/*
if (shapeLink->isText) { //strstr(shapeLink->id, "shar")) {
DBG("take Bounds: shapeID=%s\n", shapeLink->id);
DumpFloat2(" transform", xform, 6);
DumpFloat2(" shape initial bounds", shapeLink->bounds, 4);
}
*/
count++; //count visible
}
return count;
}
void nsvg__imageBounds(NSVGimage* image, float* bounds)
{
// NSVGimage* image = p->image;
NSVGclipPath* clipPath;
if (!bounds || !image) {
return;
}
bounds[0] = FLT_MAX;
bounds[1] = FLT_MAX;
bounds[2] = -FLT_MAX;
bounds[3] = -FLT_MAX;
int count = 0;
clipPath = image->clipPaths;
while (clipPath != NULL) {
if (clipPath->index == 0) { // this is bottom image
//check max bound only for this image
count = nsvg__shapesBound(clipPath->shapes, bounds);
}
clipPath = clipPath->next;
}
count += nsvg__shapesBound(image->shapes, bounds);
// DBG("found shapes=%d\n", count);
if (count == 0) {
bounds[0] = bounds[1] = 0.0f;
bounds[2] = bounds[3] = 1.0f;
}
}
// units like "px" is not used so just exclude it
NSVGparser* nsvgParse(char* input, /* const char* units,*/ float dpi, float opacity)
{
NSVGparser* p;
NSVGclipPath* clipPath;
NSVGsymbol* symbol;
float bounds[4];
p = nsvg__createParser();
if (p == NULL) {
return NULL;
}
p->dpi = dpi;
p->opacity = opacity;
// DBG("fontDb=%X\n", (UINTN)fontsDB);
nsvg__parseXML(input, nsvg__startElement, nsvg__endElement, nsvg__content, p);
// DBG("fontDb after parse=%X\n", (UINTN)fontsDB);
// if (fontsDB && fontsDB->font) {
// DBG("added font=%s\n", fontsDB->font->fontFamily); //yes, fonts added here
// }
//assign gradients
clipPath = p->image->clipPaths;
while (clipPath != NULL) {
nsvg__assignGradients(p, clipPath->shapes);
clipPath = clipPath->next;
}
symbol = p->symbols;
while (symbol) {
nsvg__assignGradients(p, symbol->shapes);
symbol = symbol->next;
}
nsvg__assignGradients(p, p->image->shapes);
nsvg__imageBounds(p->image, bounds);
#if 1
memcpy(p->image->realBounds, bounds, 4*sizeof(float));
DumpFloat2("image real bounds", bounds, 4);
p->image->width = bounds[2] - bounds[0];
p->image->height = bounds[3] - bounds[1];
#endif
DBG("scaled width=%f height=%f\n", p->image->width, p->image->height);
return p;
}
void nsvg__deleteShapes(NSVGshape* shape)
{
NSVGshape *snext;
while (shape != NULL) {
snext = shape->next;
if (!shape->link) { //don't touch fake shape!
nsvg__deleteFont(shape->fontFace);
shape->fontFace = NULL;
nsvg__deletePaint(&shape->fill);
nsvg__deletePaint(&shape->stroke);
}
if (shape->clip.index) {
FreePool(shape->clip.index);
}
FreePool(shape);
shape = snext;
}
}
void nsvg__deleteClipPaths(NSVGclipPath* path)
{
NSVGclipPath *pnext;
while (path != NULL) {
pnext = path->next;
nsvg__deleteShapes(path->shapes);
FreePool(path);
path = pnext;
}
}
void nsvgDelete(NSVGimage* image)
{
NSVGgroup *group, *gnext;
if (image == NULL) return;
nsvg__deleteShapes(image->shapes);
nsvg__deleteClipPaths(image->clipPaths);
group = image->groups;
while (group != NULL) {
gnext = group->next;
FreePool(group);
group = gnext;
}
FreePool(image);
}
/*
NSVGpath* nsvgDuplicatePath(NSVGpath* p)
{
NSVGpath* res = NULL;
if (p == NULL)
return NULL;
res = (NSVGpath*)AllocateZeroPool(sizeof(NSVGpath));
if (res == NULL) return NULL;
res->pts = (float*)AllocatePool(p->npts*2*sizeof(float));
if (res->pts == NULL) {
FreePool(res);
return NULL;
}
memcpy(res->pts, p->pts, p->npts * sizeof(float) * 2);
res->npts = p->npts;
memcpy(res->bounds, p->bounds, sizeof(p->bounds));
res->closed = p->closed;
return res;
}
*/
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