/* * 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" #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 UINTN NumFrames; UINTN FrameTime; int nsvg__shapesBound(NSVGshape *shapes, float* bounds); void takeXformBounds(NSVGshape *shape, float *xform, float *bounds); void nsvg__deleteShapes(NSVGshape* shape); extern BOOLEAN DayLight; void DumpFloat2 (CONST char* s, float* t, int N) { #if DEBUG_SVG int i; DBG("%a: ", s); for(i=0; i 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 %a\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:%a\n", value); } // Store only well formed attributes if (name && value) { attr[nattr++] = name; //class attr[nattr++] = value; //Master_Slide // DBG("attrib %d: name %a value %a\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 %a 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, ""); if (rv) s = rv + 3; continue; } // Start of a tag *s++ = '\0'; nsvg__parseContent(mark, contentCb, ud); // DBG("tag content %a 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 %a\n", mark); nsvg__parseElement(mark, startelCb, endelCb, ud); // DBG(" element %a 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, sizeof p->attr[0].id); p->attr[0].fillColor = NSVG_RGB(0,0,0); p->attr[0].strokeColor = NSVG_RGB(0,0,0); p->attr[0].opacity = 1.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) { nsvg__deletePaths(font->missingGlyph->path); FreePool(font->missingGlyph); font->missingGlyph = NULL; } glyphs = font->glyphs; while (glyphs) { 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; iattr[i]); if (attr && attr->fontFace) { FreePool(attr->fontFace); attr->fontFace = NULL; } while (attr->group) { NSVGgroup* group = attr->group; FreePool(attr->group); attr->group = group->next; } } 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=%a\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 /* //Three digit hex — #rgb //Six digit hex — #rrggbb //Integer functional — rgb(rrr, ggg, bbb) //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:%a\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:%a\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:%a Value:%a\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:%a\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=%a value=%a\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 { DBG("it is other\n"); attr->fontFace->fontStyle = 'n'; } } else if (strcmp(name, "id") == 0) { strncpy(attr->id, value, 63); 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=%s\n", PoolPrintFloat(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=%s\n", PoolPrintFloat(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=%s from=%a\n", PoolPrintFloat(r), dict[i+1]); } else if (strcmp(dict[i], "font-style") == 0) { // DBG("span: attr=%a value=%a\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 { 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=%a value=%a\n", i, dict[i], dict[i+1]); nsvg__parseAttr(p, dict[i], dict[i + 1]); } } DBG("text: x=%s y=%s attr:Style=%x, size=%s, id=%a\n", PoolPrintFloat(x), PoolPrintFloat(y), attr->fontFace->fontStyle, PoolPrintFloat(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 %a 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; while (fontChain) { fontSVG = fontChain->font; if (fontSVG) { DBG("probe fontFamily=%a fontStyle=%c\n", fontSVG->fontFamily, fontSVG->fontStyle); if ((strcmp(fontSVG->fontFamily, text->fontFace->fontFamily) == 0) && (fontSVG->fontStyle == text->fontStyle)) { DBG("font %a found\n", fontSVG->fontFamily); break; } } fontChain = fontChain->next; } 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 %a not found, try to load external\n", text->fontFace->fontFamily); Status = egLoadFile(ThemeDir, PoolPrint(L"%a.svg", text->fontFace->fontFamily), &FileData, &FileDataLength); DBG("font %a loaded status=%r\n", text->fontFace->fontFamily, Status); if (!EFI_ERROR(Status)) { p1 = nsvgParse((CHAR8*)FileData, 72, 1.0f); //later we will free parser p1 if (!p1) { DBG("font %a not parsed\n", text->fontFace->fontFamily); } else { fontSVG = (__typeof__(fontSVG))AllocateCopyPool(sizeof(NSVGfont), p1->font); DBG("font family %a parsed\n", fontSVG->fontFamily); fontChain = (__typeof__(fontChain))AllocatePool(sizeof(*fontChain)); fontChain->font = fontSVG; fontChain->next = fontsDB; fontsDB = fontChain; text->font = fontSVG; //this is the same pointer as in fontChain but we will never free text->font. We will free fontChain } FreePool(FileData); //after load FileData = NULL; } else { text->font = p->font; //else embedded if present which is also double fontChain } } else { DBG("set found font %a\n", fontSVG->id); 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=%a color=%x size=%s as in MessageRow\n", fontSVG->fontFamily, text->fontColor, PoolPrintFloat(text->fontSize)); } break; } else if (!DayLight && strcmp(group->id, "MessageRow_night") == 0) { //replace 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->font=%a color=%x size=%s as in MessageRow\n", fontSVG->fontFamily, text->fontColor, PoolPrintFloat(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=%a color=%x size=%s as in MenuRows\n", fontSVG->fontFamily, text->fontColor, PoolPrintFloat(text->fontSize)); } break; } else if (!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=%a color=%x size=%s as in HelpRows\n", fontSVG->fontFamily, text->fontColor, PoolPrintFloat(text->fontSize)); } break; } else if (!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->font=%a color=%x size=%s as in HelpRows\n", fontSVG->fontFamily, text->fontColor, PoolPrintFloat(text->fontSize)); break; } group = group->next; } } // if ((!text->font || !text->font->glyphs) && fontsDB) { // text->font = fontsDB->font; //first found // } //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=%a\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; 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); 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=%a\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 static void parseTheme(NSVGparser* p, const char** dict) { int i; BOOLEAN found = FALSE; UINT32 Color = 0x80808080; //default value for (i = 0; dict[i]; i += 2) { if (strcmp(dict[i], "SelectionOnTop") == 0) { GlobalConfig.SelectionOnTop = getIntegerDict(dict[i+1])>0; } else if (strcmp(dict[i], "BadgeOffsetX") == 0) { GlobalConfig.BadgeOffsetX = getIntegerDict(dict[i + 1]); } else if (strcmp(dict[i], "BadgeOffsetY") == 0) { GlobalConfig.BadgeOffsetY = getIntegerDict(dict[i + 1]); } else if (strcmp(dict[i], "NonSelectedGrey") == 0) { GlobalConfig.NonSelectedGrey = getIntegerDict(dict[i + 1])>0; } else if (strcmp(dict[i], "CharWidth") == 0) { GlobalConfig.CharWidth = getIntegerDict(dict[i + 1]); } else if (strcmp(dict[i], "BackgroundDark") == 0) { GlobalConfig.BackgroundDark = getIntegerDict(dict[i + 1])>0; } else if (strcmp(dict[i], "BackgroundSharp") == 0) { GlobalConfig.BackgroundSharp = getIntegerDict(dict[i + 1]); } else if (strcmp(dict[i], "BackgroundScale") == 0) { GlobalConfig.BackgroundScale = imNone; if (strstr(dict[i+1], "scale") != NULL) { GlobalConfig.BackgroundScale = imScale; } if (strstr(dict[i+1], "crop") != NULL) { GlobalConfig.BackgroundScale = imCrop; } if (strstr(dict[i+1], "tile") != NULL) { GlobalConfig.BackgroundScale = imTile; } } else if (strcmp(dict[i], "Badges") == 0) { GlobalConfig.HideBadges = 0; if (strstr(dict[i+1], "show") != NULL) { GlobalConfig.HideBadges |= HDBADGES_SHOW; } if (strstr(dict[i+1], "swap") != NULL) { GlobalConfig.HideBadges |= HDBADGES_SWAP; } if (strstr(dict[i+1], "inline") != NULL) { GlobalConfig.HideBadges |= HDBADGES_INLINE; } } else if (strcmp(dict[i], "BadgeScale") == 0) { GlobalConfig.BadgeScale = getIntegerDict(dict[i + 1]); } else if (strcmp(dict[i], "SelectionColor") == 0) { Color = getIntegerDict(dict[i + 1]); if (DayLight) { GlobalConfig.SelectionColor = Color; } } else if (strcmp(dict[i], "SelectionColor_night") == 0) { found = TRUE; if (!DayLight) { GlobalConfig.SelectionColor = getIntegerDict(dict[i + 1]); } } else if (strcmp(dict[i], "VerticalLayout") == 0) { GlobalConfig.VerticalLayout = getIntegerDict(dict[i + 1])>0; } else if (strcmp(dict[i], "BootCampStyle") == 0) { GlobalConfig.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) { GlobalConfig.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=%a\n", font->id); 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=%a\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 %a\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 { font->fontStyle = 'n'; } } 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, "&") !=0 ) { A = 0x26; //& } else if (strstr(s, """) !=0 ) { A = 0x22; //" } else if (strstr(s, "<") !=0 ) { A = 0x3C; //< } else if (strstr(s, ">") !=0 ) { A = 0x3E; //> } else if (strstr(s, " ") !=0 ) { A = 0xA0; //> } else if (strstr(s, "©") !=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) { parseTheme(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) { 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=%s ", PoolPrintFloat(p->text->font->bbox[0])); DBG("bbox3=%s \n", PoolPrintFloat(p->text->font->bbox[3])); DumpFloat2("glyph xform:", shape->xform, 6); DBG("stroke-color=%x ", shape->stroke.color); DBG("stroke-width=%s\n", PoolPrintFloat(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 %s uses font %a\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, ""); 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 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=%a\n", shapeLink->id); DumpFloat2(" transform", xform, 6); DumpFloat2(" shape initial bounds", shapeLink->bounds, 4); } */ count++; //count visible } return count; } void nsvg__imageBounds(NSVGparser* p, float* bounds) { NSVGimage* image = p->image; NSVGclipPath* clipPath; 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]; bounds[0] = FLT_MAX; bounds[1] = FLT_MAX; bounds[2] = -FLT_MAX; bounds[3] = -FLT_MAX; p = nsvg__createParser(); if (p == NULL) { return NULL; } p->dpi = dpi; p->opacity = opacity; nsvg__parseXML(input, nsvg__startElement, nsvg__endElement, nsvg__content, p); //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, 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=%s height=%s\n", PoolPrintFloat(p->image->width), PoolPrintFloat(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; } */