Update LVGL to v9.1.0

1 files changed, 3759 insertions, 0 deletions

diff --git a/lib/lvgl/src/libs/thorvg/tvgSvgLoader.cpp b/lib/lvgl/src/libs/thorvg/tvgSvgLoader.cpp
new file mode 100644
index 00000000..efca8124
--- /dev/null
+++ b/lib/lvgl/src/libs/thorvg/tvgSvgLoader.cpp
@@ -0,0 +1,3759 @@
+/*
+ * Copyright (c) 2020 - 2023 the ThorVG project. All rights reserved.
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "../../lv_conf_internal.h"
+#if LV_USE_THORVG_INTERNAL
+
+/*
+ * Copyright notice for the EFL:
+
+ * Copyright (C) EFL developers (see AUTHORS)
+
+ * All rights reserved.
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <cstring>
+#include <fstream>
+#include <float.h>
+#include "tvgLoader.h"
+#include "tvgXmlParser.h"
+#include "tvgSvgLoader.h"
+#include "tvgSvgSceneBuilder.h"
+#include "tvgStr.h"
+#include "tvgSvgCssStyle.h"
+#include "tvgMath.h"
+
+/************************************************************************/
+/* Internal Class Implementation                                        */
+/************************************************************************/
+
+/*
+ * According to: https://www.w3.org/TR/SVG2/coords.html#Units
+ * and: https://www.w3.org/TR/css-values-4/#absolute-lengths
+ */
+#define PX_PER_IN 96        //1 in = 96 px
+#define PX_PER_PC 16        //1 pc = 1/6 in  -> PX_PER_IN/6
+#define PX_PER_PT 1.333333f //1 pt = 1/72 in -> PX_PER_IN/72
+#define PX_PER_MM 3.779528f //1 in = 25.4 mm -> PX_PER_IN/25.4
+#define PX_PER_CM 37.79528f //1 in = 2.54 cm -> PX_PER_IN/2.54
+
+typedef bool (*parseAttributes)(const char* buf, unsigned bufLength, simpleXMLAttributeCb func, const void* data);
+typedef SvgNode* (*FactoryMethod)(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func);
+typedef SvgStyleGradient* (*GradientFactoryMethod)(SvgLoaderData* loader, const char* buf, unsigned bufLength);
+
+static char* _skipSpace(const char* str, const char* end)
+{
+    while (((end && str < end) || (!end && *str != '\0')) && isspace(*str)) {
+        ++str;
+    }
+    return (char*) str;
+}
+
+
+static char* _copyId(const char* str)
+{
+    if (!str) return nullptr;
+
+    return strdup(str);
+}
+
+
+static const char* _skipComma(const char* content)
+{
+    content = _skipSpace(content, nullptr);
+    if (*content == ',') return content + 1;
+    return content;
+}
+
+
+static bool _parseNumber(const char** content, float* number)
+{
+    char* end = nullptr;
+
+    *number = strToFloat(*content, &end);
+    //If the start of string is not number
+    if ((*content) == end) return false;
+    //Skip comma if any
+    *content = _skipComma(end);
+
+    return true;
+}
+
+
+static constexpr struct
+{
+    AspectRatioAlign align;
+    const char* tag;
+} alignTags[] = {
+    { AspectRatioAlign::XMinYMin, "xMinYMin" },
+    { AspectRatioAlign::XMidYMin, "xMidYMin" },
+    { AspectRatioAlign::XMaxYMin, "xMaxYMin" },
+    { AspectRatioAlign::XMinYMid, "xMinYMid" },
+    { AspectRatioAlign::XMidYMid, "xMidYMid" },
+    { AspectRatioAlign::XMaxYMid, "xMaxYMid" },
+    { AspectRatioAlign::XMinYMax, "xMinYMax" },
+    { AspectRatioAlign::XMidYMax, "xMidYMax" },
+    { AspectRatioAlign::XMaxYMax, "xMaxYMax" },
+};
+
+
+static void _parseAspectRatio(const char** content, AspectRatioAlign* align, AspectRatioMeetOrSlice* meetOrSlice)
+{
+    if (!strcmp(*content, "none")) {
+        *align = AspectRatioAlign::None;
+        return;
+    }
+
+    for (unsigned int i = 0; i < sizeof(alignTags) / sizeof(alignTags[0]); i++) {
+        if (!strncmp(*content, alignTags[i].tag, 8)) {
+            *align = alignTags[i].align;
+            *content += 8;
+            *content = _skipSpace(*content, nullptr);
+            break;
+        }
+    }
+
+    if (!strcmp(*content, "meet")) {
+        *meetOrSlice = AspectRatioMeetOrSlice::Meet;
+    } else if (!strcmp(*content, "slice")) {
+        *meetOrSlice = AspectRatioMeetOrSlice::Slice;
+    }
+}
+
+
+/**
+ * According to https://www.w3.org/TR/SVG/coords.html#Units
+ */
+static float _toFloat(const SvgParser* svgParse, const char* str, SvgParserLengthType type)
+{
+    float parsedValue = strToFloat(str, nullptr);
+
+    if (strstr(str, "cm")) parsedValue *= PX_PER_CM;
+    else if (strstr(str, "mm")) parsedValue *= PX_PER_MM;
+    else if (strstr(str, "pt")) parsedValue *= PX_PER_PT;
+    else if (strstr(str, "pc")) parsedValue *= PX_PER_PC;
+    else if (strstr(str, "in")) parsedValue *= PX_PER_IN;
+    else if (strstr(str, "%")) {
+        if (type == SvgParserLengthType::Vertical) parsedValue = (parsedValue / 100.0f) * svgParse->global.h;
+        else if (type == SvgParserLengthType::Horizontal) parsedValue = (parsedValue / 100.0f) * svgParse->global.w;
+        else //if other then it's radius
+        {
+            float max = svgParse->global.w;
+            if (max < svgParse->global.h)
+                max = svgParse->global.h;
+            parsedValue = (parsedValue / 100.0f) * max;
+        }
+    }
+    //TODO: Implement 'em', 'ex' attributes
+
+    return parsedValue;
+}
+
+
+static float _gradientToFloat(const SvgParser* svgParse, const char* str, bool& isPercentage)
+{
+    char* end = nullptr;
+
+    float parsedValue = strToFloat(str, &end);
+    isPercentage = false;
+
+    if (strstr(str, "%")) {
+        parsedValue = parsedValue / 100.0f;
+        isPercentage = true;
+    }
+    else if (strstr(str, "cm")) parsedValue *= PX_PER_CM;
+    else if (strstr(str, "mm")) parsedValue *= PX_PER_MM;
+    else if (strstr(str, "pt")) parsedValue *= PX_PER_PT;
+    else if (strstr(str, "pc")) parsedValue *= PX_PER_PC;
+    else if (strstr(str, "in")) parsedValue *= PX_PER_IN;
+    //TODO: Implement 'em', 'ex' attributes
+
+    return parsedValue;
+}
+
+
+static float _toOffset(const char* str)
+{
+    char* end = nullptr;
+    auto strEnd = str + strlen(str);
+
+    float parsedValue = strToFloat(str, &end);
+
+    end = _skipSpace(end, nullptr);
+    auto ptr = strstr(str, "%");
+
+    if (ptr) {
+        parsedValue = parsedValue / 100.0f;
+        if (end != ptr || (end + 1) != strEnd) return 0;
+    } else if (end != strEnd) return 0;
+
+    return parsedValue;
+}
+
+
+static int _toOpacity(const char* str)
+{
+    char* end = nullptr;
+    float opacity = strToFloat(str, &end);
+
+    if (end) {
+        if (end[0] == '%' && end[1] == '\0') return lrint(opacity * 2.55f);
+        else if (*end == '\0') return lrint(opacity * 255);
+    }
+    return 255;
+}
+
+
+static SvgMaskType _toMaskType(const char* str)
+{
+    if (!strcmp(str, "Alpha")) return SvgMaskType::Alpha;
+
+    return SvgMaskType::Luminance;
+}
+
+
+//The default rendering order: fill, stroke, markers
+//If any is omitted, will be rendered in its default order after the specified ones.
+static bool _toPaintOrder(const char* str)
+{
+    uint8_t position = 1;
+    uint8_t strokePosition = 0;
+    uint8_t fillPosition = 0;
+
+    while (*str != '\0') {
+        str = _skipSpace(str, nullptr);
+        if (!strncmp(str, "fill", 4)) {
+            fillPosition = position++;
+            str += 4;
+        } else if (!strncmp(str, "stroke", 6)) {
+            strokePosition = position++;
+            str += 6;
+        } else if (!strncmp(str, "markers", 7)) {
+            str += 7;
+        } else {
+            return _toPaintOrder("fill stroke");
+        }
+    }
+
+    if (fillPosition == 0) fillPosition = position++;
+    if (strokePosition == 0) strokePosition = position++;
+
+    return fillPosition < strokePosition;
+}
+
+
+#define _PARSE_TAG(Type, Name, Name1, Tags_Array, Default)                        \
+    static Type _to##Name1(const char* str)                                       \
+    {                                                                             \
+        unsigned int i;                                                           \
+                                                                                  \
+        for (i = 0; i < sizeof(Tags_Array) / sizeof(Tags_Array[0]); i++) {        \
+            if (!strcmp(str, Tags_Array[i].tag)) return Tags_Array[i].Name;       \
+        }                                                                         \
+        return Default;                                                           \
+    }
+
+
+/* parse the line cap used during stroking a path.
+ * Value:    butt | round | square | inherit
+ * Initial:    butt
+ * https://www.w3.org/TR/SVG/painting.html
+ */
+static constexpr struct
+{
+    StrokeCap lineCap;
+    const char* tag;
+} lineCapTags[] = {
+    { StrokeCap::Butt, "butt" },
+    { StrokeCap::Round, "round" },
+    { StrokeCap::Square, "square" }
+};
+
+
+_PARSE_TAG(StrokeCap, lineCap, LineCap, lineCapTags, StrokeCap::Butt)
+
+
+/* parse the line join used during stroking a path.
+ * Value:   miter | round | bevel | inherit
+ * Initial:    miter
+ * https://www.w3.org/TR/SVG/painting.html
+ */
+static constexpr struct
+{
+    StrokeJoin lineJoin;
+    const char* tag;
+} lineJoinTags[] = {
+    { StrokeJoin::Miter, "miter" },
+    { StrokeJoin::Round, "round" },
+    { StrokeJoin::Bevel, "bevel" }
+};
+
+
+_PARSE_TAG(StrokeJoin, lineJoin, LineJoin, lineJoinTags, StrokeJoin::Miter)
+
+
+/* parse the fill rule used during filling a path.
+ * Value:   nonzero | evenodd | inherit
+ * Initial:    nonzero
+ * https://www.w3.org/TR/SVG/painting.html
+ */
+static constexpr struct
+{
+    FillRule fillRule;
+    const char* tag;
+} fillRuleTags[] = {
+    { FillRule::EvenOdd, "evenodd" }
+};
+
+
+_PARSE_TAG(FillRule, fillRule, FillRule, fillRuleTags, FillRule::Winding)
+
+
+/* parse the dash pattern used during stroking a path.
+ * Value:   none | <dasharray> | inherit
+ * Initial:    none
+ * https://www.w3.org/TR/SVG/painting.html
+ */
+static void _parseDashArray(SvgLoaderData* loader, const char *str, SvgDash* dash)
+{
+    if (!strncmp(str, "none", 4)) return;
+
+    char *end = nullptr;
+
+    while (*str) {
+        str = _skipComma(str);
+        float parsedValue = strToFloat(str, &end);
+        if (str == end) break;
+        if (parsedValue <= 0.0f) break;
+        if (*end == '%') {
+            ++end;
+            //Refers to the diagonal length of the viewport.
+            //https://www.w3.org/TR/SVG2/coords.html#Units
+            parsedValue = (sqrtf(powf(loader->svgParse->global.w, 2) + powf(loader->svgParse->global.h, 2)) / sqrtf(2.0f)) * (parsedValue / 100.0f);
+        }
+        (*dash).array.push(parsedValue);
+        str = end;
+    }
+    //If dash array size is 1, it means that dash and gap size are the same.
+    if ((*dash).array.count == 1) (*dash).array.push((*dash).array[0]);
+}
+
+
+static char* _idFromUrl(const char* url)
+{
+    url = _skipSpace(url, nullptr);
+    if ((*url) == '(') {
+        ++url;
+        url = _skipSpace(url, nullptr);
+    }
+
+    if ((*url) == '\'') ++url;
+    if ((*url) == '#') ++url;
+
+    int i = 0;
+    while (url[i] > ' ' && url[i] != ')' && url[i] != '\'') ++i;
+
+    return strDuplicate(url, i);
+}
+
+
+static unsigned char _parseColor(const char* value, char** end)
+{
+    float r;
+
+    r = strToFloat(value, end);
+    *end = _skipSpace(*end, nullptr);
+    if (**end == '%') {
+        r = 255 * r / 100;
+        (*end)++;
+    }
+    *end = _skipSpace(*end, nullptr);
+
+    if (r < 0 || r > 255) {
+        *end = nullptr;
+        return 0;
+    }
+
+    return lrint(r);
+}
+
+
+static constexpr struct
+{
+    const char* name;
+    unsigned int value;
+} colors[] = {
+    { "aliceblue", 0xfff0f8ff },
+    { "antiquewhite", 0xfffaebd7 },
+    { "aqua", 0xff00ffff },
+    { "aquamarine", 0xff7fffd4 },
+    { "azure", 0xfff0ffff },
+    { "beige", 0xfff5f5dc },
+    { "bisque", 0xffffe4c4 },
+    { "black", 0xff000000 },
+    { "blanchedalmond", 0xffffebcd },
+    { "blue", 0xff0000ff },
+    { "blueviolet", 0xff8a2be2 },
+    { "brown", 0xffa52a2a },
+    { "burlywood", 0xffdeb887 },
+    { "cadetblue", 0xff5f9ea0 },
+    { "chartreuse", 0xff7fff00 },
+    { "chocolate", 0xffd2691e },
+    { "coral", 0xffff7f50 },
+    { "cornflowerblue", 0xff6495ed },
+    { "cornsilk", 0xfffff8dc },
+    { "crimson", 0xffdc143c },
+    { "cyan", 0xff00ffff },
+    { "darkblue", 0xff00008b },
+    { "darkcyan", 0xff008b8b },
+    { "darkgoldenrod", 0xffb8860b },
+    { "darkgray", 0xffa9a9a9 },
+    { "darkgrey", 0xffa9a9a9 },
+    { "darkgreen", 0xff006400 },
+    { "darkkhaki", 0xffbdb76b },
+    { "darkmagenta", 0xff8b008b },
+    { "darkolivegreen", 0xff556b2f },
+    { "darkorange", 0xffff8c00 },
+    { "darkorchid", 0xff9932cc },
+    { "darkred", 0xff8b0000 },
+    { "darksalmon", 0xffe9967a },
+    { "darkseagreen", 0xff8fbc8f },
+    { "darkslateblue", 0xff483d8b },
+    { "darkslategray", 0xff2f4f4f },
+    { "darkslategrey", 0xff2f4f4f },
+    { "darkturquoise", 0xff00ced1 },
+    { "darkviolet", 0xff9400d3 },
+    { "deeppink", 0xffff1493 },
+    { "deepskyblue", 0xff00bfff },
+    { "dimgray", 0xff696969 },
+    { "dimgrey", 0xff696969 },
+    { "dodgerblue", 0xff1e90ff },
+    { "firebrick", 0xffb22222 },
+    { "floralwhite", 0xfffffaf0 },
+    { "forestgreen", 0xff228b22 },
+    { "fuchsia", 0xffff00ff },
+    { "gainsboro", 0xffdcdcdc },
+    { "ghostwhite", 0xfff8f8ff },
+    { "gold", 0xffffd700 },
+    { "goldenrod", 0xffdaa520 },
+    { "gray", 0xff808080 },
+    { "grey", 0xff808080 },
+    { "green", 0xff008000 },
+    { "greenyellow", 0xffadff2f },
+    { "honeydew", 0xfff0fff0 },
+    { "hotpink", 0xffff69b4 },
+    { "indianred", 0xffcd5c5c },
+    { "indigo", 0xff4b0082 },
+    { "ivory", 0xfffffff0 },
+    { "khaki", 0xfff0e68c },
+    { "lavender", 0xffe6e6fa },
+    { "lavenderblush", 0xfffff0f5 },
+    { "lawngreen", 0xff7cfc00 },
+    { "lemonchiffon", 0xfffffacd },
+    { "lightblue", 0xffadd8e6 },
+    { "lightcoral", 0xfff08080 },
+    { "lightcyan", 0xffe0ffff },
+    { "lightgoldenrodyellow", 0xfffafad2 },
+    { "lightgray", 0xffd3d3d3 },
+    { "lightgrey", 0xffd3d3d3 },
+    { "lightgreen", 0xff90ee90 },
+    { "lightpink", 0xffffb6c1 },
+    { "lightsalmon", 0xffffa07a },
+    { "lightseagreen", 0xff20b2aa },
+    { "lightskyblue", 0xff87cefa },
+    { "lightslategray", 0xff778899 },
+    { "lightslategrey", 0xff778899 },
+    { "lightsteelblue", 0xffb0c4de },
+    { "lightyellow", 0xffffffe0 },
+    { "lime", 0xff00ff00 },
+    { "limegreen", 0xff32cd32 },
+    { "linen", 0xfffaf0e6 },
+    { "magenta", 0xffff00ff },
+    { "maroon", 0xff800000 },
+    { "mediumaquamarine", 0xff66cdaa },
+    { "mediumblue", 0xff0000cd },
+    { "mediumorchid", 0xffba55d3 },
+    { "mediumpurple", 0xff9370d8 },
+    { "mediumseagreen", 0xff3cb371 },
+    { "mediumslateblue", 0xff7b68ee },
+    { "mediumspringgreen", 0xff00fa9a },
+    { "mediumturquoise", 0xff48d1cc },
+    { "mediumvioletred", 0xffc71585 },
+    { "midnightblue", 0xff191970 },
+    { "mintcream", 0xfff5fffa },
+    { "mistyrose", 0xffffe4e1 },
+    { "moccasin", 0xffffe4b5 },
+    { "navajowhite", 0xffffdead },
+    { "navy", 0xff000080 },
+    { "oldlace", 0xfffdf5e6 },
+    { "olive", 0xff808000 },
+    { "olivedrab", 0xff6b8e23 },
+    { "orange", 0xffffa500 },
+    { "orangered", 0xffff4500 },
+    { "orchid", 0xffda70d6 },
+    { "palegoldenrod", 0xffeee8aa },
+    { "palegreen", 0xff98fb98 },
+    { "paleturquoise", 0xffafeeee },
+    { "palevioletred", 0xffd87093 },
+    { "papayawhip", 0xffffefd5 },
+    { "peachpuff", 0xffffdab9 },
+    { "peru", 0xffcd853f },
+    { "pink", 0xffffc0cb },
+    { "plum", 0xffdda0dd },
+    { "powderblue", 0xffb0e0e6 },
+    { "purple", 0xff800080 },
+    { "red", 0xffff0000 },
+    { "rosybrown", 0xffbc8f8f },
+    { "royalblue", 0xff4169e1 },
+    { "saddlebrown", 0xff8b4513 },
+    { "salmon", 0xfffa8072 },
+    { "sandybrown", 0xfff4a460 },
+    { "seagreen", 0xff2e8b57 },
+    { "seashell", 0xfffff5ee },
+    { "sienna", 0xffa0522d },
+    { "silver", 0xffc0c0c0 },
+    { "skyblue", 0xff87ceeb },
+    { "slateblue", 0xff6a5acd },
+    { "slategray", 0xff708090 },
+    { "slategrey", 0xff708090 },
+    { "snow", 0xfffffafa },
+    { "springgreen", 0xff00ff7f },
+    { "steelblue", 0xff4682b4 },
+    { "tan", 0xffd2b48c },
+    { "teal", 0xff008080 },
+    { "thistle", 0xffd8bfd8 },
+    { "tomato", 0xffff6347 },
+    { "turquoise", 0xff40e0d0 },
+    { "violet", 0xffee82ee },
+    { "wheat", 0xfff5deb3 },
+    { "white", 0xffffffff },
+    { "whitesmoke", 0xfff5f5f5 },
+    { "yellow", 0xffffff00 },
+    { "yellowgreen", 0xff9acd32 }
+};
+
+
+static void _toColor(const char* str, uint8_t* r, uint8_t* g, uint8_t* b, char** ref)
+{
+    unsigned int len = strlen(str);
+    char *red, *green, *blue;
+    unsigned char tr, tg, tb;
+
+    if (len == 4 && str[0] == '#') {
+        //Case for "#456" should be interprete as "#445566"
+        if (isxdigit(str[1]) && isxdigit(str[2]) && isxdigit(str[3])) {
+            char tmp[3] = { '\0', '\0', '\0' };
+            tmp[0] = str[1];
+            tmp[1] = str[1];
+            *r = strtol(tmp, nullptr, 16);
+            tmp[0] = str[2];
+            tmp[1] = str[2];
+            *g = strtol(tmp, nullptr, 16);
+            tmp[0] = str[3];
+            tmp[1] = str[3];
+            *b = strtol(tmp, nullptr, 16);
+        }
+    } else if (len == 7 && str[0] == '#') {
+        if (isxdigit(str[1]) && isxdigit(str[2]) && isxdigit(str[3]) && isxdigit(str[4]) && isxdigit(str[5]) && isxdigit(str[6])) {
+            char tmp[3] = { '\0', '\0', '\0' };
+            tmp[0] = str[1];
+            tmp[1] = str[2];
+            *r = strtol(tmp, nullptr, 16);
+            tmp[0] = str[3];
+            tmp[1] = str[4];
+            *g = strtol(tmp, nullptr, 16);
+            tmp[0] = str[5];
+            tmp[1] = str[6];
+            *b = strtol(tmp, nullptr, 16);
+        }
+    } else if (len >= 10 && (str[0] == 'r' || str[0] == 'R') && (str[1] == 'g' || str[1] == 'G') && (str[2] == 'b' || str[2] == 'B') && str[3] == '(' && str[len - 1] == ')') {
+        tr = _parseColor(str + 4, &red);
+        if (red && *red == ',') {
+            tg = _parseColor(red + 1, &green);
+            if (green && *green == ',') {
+                tb = _parseColor(green + 1, &blue);
+                if (blue && blue[0] == ')' && blue[1] == '\0') {
+                    *r = tr;
+                    *g = tg;
+                    *b = tb;
+                }
+            }
+        }
+    } else if (ref && len >= 3 && !strncmp(str, "url", 3)) {
+        if (*ref) free(*ref);
+        *ref = _idFromUrl((const char*)(str + 3));
+    } else {
+        //Handle named color
+        for (unsigned int i = 0; i < (sizeof(colors) / sizeof(colors[0])); i++) {
+            if (!strcasecmp(colors[i].name, str)) {
+                *r = (((uint8_t*)(&(colors[i].value)))[2]);
+                *g = (((uint8_t*)(&(colors[i].value)))[1]);
+                *b = (((uint8_t*)(&(colors[i].value)))[0]);
+                return;
+            }
+        }
+    }
+}
+
+
+static char* _parseNumbersArray(char* str, float* points, int* ptCount, int len)
+{
+    int count = 0;
+    char* end = nullptr;
+
+    str = _skipSpace(str, nullptr);
+    while ((count < len) && (isdigit(*str) || *str == '-' || *str == '+' || *str == '.')) {
+        points[count++] = strToFloat(str, &end);
+        str = end;
+        str = _skipSpace(str, nullptr);
+        if (*str == ',') ++str;
+        //Eat the rest of space
+        str = _skipSpace(str, nullptr);
+    }
+    *ptCount = count;
+    return str;
+}
+
+
+enum class MatrixState {
+    Unknown,
+    Matrix,
+    Translate,
+    Rotate,
+    Scale,
+    SkewX,
+    SkewY
+};
+
+
+#define MATRIX_DEF(Name, Value)     \
+    {                               \
+#Name, sizeof(#Name), Value \
+    }
+
+
+static constexpr struct
+{
+    const char* tag;
+    int sz;
+    MatrixState state;
+} matrixTags[] = {
+    MATRIX_DEF(matrix, MatrixState::Matrix),
+    MATRIX_DEF(translate, MatrixState::Translate),
+    MATRIX_DEF(rotate, MatrixState::Rotate),
+    MATRIX_DEF(scale, MatrixState::Scale),
+    MATRIX_DEF(skewX, MatrixState::SkewX),
+    MATRIX_DEF(skewY, MatrixState::SkewY)
+};
+
+
+static void _matrixCompose(const Matrix* m1, const Matrix* m2, Matrix* dst)
+{
+    auto a11 = (m1->e11 * m2->e11) + (m1->e12 * m2->e21) + (m1->e13 * m2->e31);
+    auto a12 = (m1->e11 * m2->e12) + (m1->e12 * m2->e22) + (m1->e13 * m2->e32);
+    auto a13 = (m1->e11 * m2->e13) + (m1->e12 * m2->e23) + (m1->e13 * m2->e33);
+
+    auto a21 = (m1->e21 * m2->e11) + (m1->e22 * m2->e21) + (m1->e23 * m2->e31);
+    auto a22 = (m1->e21 * m2->e12) + (m1->e22 * m2->e22) + (m1->e23 * m2->e32);
+    auto a23 = (m1->e21 * m2->e13) + (m1->e22 * m2->e23) + (m1->e23 * m2->e33);
+
+    auto a31 = (m1->e31 * m2->e11) + (m1->e32 * m2->e21) + (m1->e33 * m2->e31);
+    auto a32 = (m1->e31 * m2->e12) + (m1->e32 * m2->e22) + (m1->e33 * m2->e32);
+    auto a33 = (m1->e31 * m2->e13) + (m1->e32 * m2->e23) + (m1->e33 * m2->e33);
+
+    dst->e11 = a11;
+    dst->e12 = a12;
+    dst->e13 = a13;
+    dst->e21 = a21;
+    dst->e22 = a22;
+    dst->e23 = a23;
+    dst->e31 = a31;
+    dst->e32 = a32;
+    dst->e33 = a33;
+}
+
+
+/* parse transform attribute
+ * https://www.w3.org/TR/SVG/coords.html#TransformAttribute
+ */
+static Matrix* _parseTransformationMatrix(const char* value)
+{
+    const int POINT_CNT = 8;
+
+    auto matrix = (Matrix*)malloc(sizeof(Matrix));
+    if (!matrix) return nullptr;
+    *matrix = {1, 0, 0, 0, 1, 0, 0, 0, 1};
+
+    float points[POINT_CNT];
+    int ptCount = 0;
+    char* str = (char*)value;
+    char* end = str + strlen(str);
+
+    while (str < end) {
+        auto state = MatrixState::Unknown;
+
+        if (isspace(*str) || (*str == ',')) {
+            ++str;
+            continue;
+        }
+        for (unsigned int i = 0; i < sizeof(matrixTags) / sizeof(matrixTags[0]); i++) {
+            if (!strncmp(matrixTags[i].tag, str, matrixTags[i].sz - 1)) {
+                state = matrixTags[i].state;
+                str += (matrixTags[i].sz - 1);
+                break;
+            }
+        }
+        if (state == MatrixState::Unknown) goto error;
+
+        str = _skipSpace(str, end);
+        if (*str != '(') goto error;
+        ++str;
+        str = _parseNumbersArray(str, points, &ptCount, POINT_CNT);
+        if (*str != ')') goto error;
+        ++str;
+
+        if (state == MatrixState::Matrix) {
+            if (ptCount != 6) goto error;
+            Matrix tmp = {points[0], points[2], points[4], points[1], points[3], points[5], 0, 0, 1};
+            _matrixCompose(matrix, &tmp, matrix);
+        } else if (state == MatrixState::Translate) {
+            if (ptCount == 1) {
+                Matrix tmp = {1, 0, points[0], 0, 1, 0, 0, 0, 1};
+                _matrixCompose(matrix, &tmp, matrix);
+            } else if (ptCount == 2) {
+                Matrix tmp = {1, 0, points[0], 0, 1, points[1], 0, 0, 1};
+                _matrixCompose(matrix, &tmp, matrix);
+            } else goto error;
+        } else if (state == MatrixState::Rotate) {
+            //Transform to signed.
+            points[0] = fmod(points[0], (float)360);
+            if (points[0] < 0) points[0] += 360;
+            auto c = cosf(points[0] * (float)(M_PI / 180.0));
+            auto s = sinf(points[0] * (float)(M_PI / 180.0));
+            if (ptCount == 1) {
+                Matrix tmp = { c, -s, 0, s, c, 0, 0, 0, 1 };
+                _matrixCompose(matrix, &tmp, matrix);
+            } else if (ptCount == 3) {
+                Matrix tmp = { 1, 0, points[1], 0, 1, points[2], 0, 0, 1 };
+                _matrixCompose(matrix, &tmp, matrix);
+                tmp = { c, -s, 0, s, c, 0, 0, 0, 1 };
+                _matrixCompose(matrix, &tmp, matrix);
+                tmp = { 1, 0, -points[1], 0, 1, -points[2], 0, 0, 1 };
+                _matrixCompose(matrix, &tmp, matrix);
+            } else {
+                goto error;
+            }
+        } else if (state == MatrixState::Scale) {
+            if (ptCount < 1 || ptCount > 2) goto error;
+            auto sx = points[0];
+            auto sy = sx;
+            if (ptCount == 2) sy = (float)points[1];
+            Matrix tmp = { sx, 0, 0, 0, sy, 0, 0, 0, 1 };
+            _matrixCompose(matrix, &tmp, matrix);
+        }
+    }
+    return matrix;
+error:
+    if (matrix) free(matrix);
+    return nullptr;
+}
+
+
+#define LENGTH_DEF(Name, Value)     \
+    {                               \
+#Name, sizeof(#Name), Value \
+    }
+
+
+static void _postpone(Array<SvgNodeIdPair>& nodes, SvgNode *node, char* id)
+{
+    nodes.push({node, id});
+}
+
+
+/*
+// TODO - remove?
+static constexpr struct
+{
+    const char* tag;
+    int sz;
+    SvgLengthType type;
+} lengthTags[] = {
+    LENGTH_DEF(%, SvgLengthType::Percent),
+    LENGTH_DEF(px, SvgLengthType::Px),
+    LENGTH_DEF(pc, SvgLengthType::Pc),
+    LENGTH_DEF(pt, SvgLengthType::Pt),
+    LENGTH_DEF(mm, SvgLengthType::Mm),
+    LENGTH_DEF(cm, SvgLengthType::Cm),
+    LENGTH_DEF(in, SvgLengthType::In)
+};
+
+static float _parseLength(const char* str, SvgLengthType* type)
+{
+    float value;
+    int sz = strlen(str);
+
+    *type = SvgLengthType::Px;
+    for (unsigned int i = 0; i < sizeof(lengthTags) / sizeof(lengthTags[0]); i++) {
+        if (lengthTags[i].sz - 1 == sz && !strncmp(lengthTags[i].tag, str, sz)) *type = lengthTags[i].type;
+    }
+    value = svgUtilStrtof(str, nullptr);
+    return value;
+}
+*/
+
+static bool _parseStyleAttr(void* data, const char* key, const char* value);
+static bool _parseStyleAttr(void* data, const char* key, const char* value, bool style);
+
+
+static bool _attrParseSvgNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgDocNode* doc = &(node->node.doc);
+
+    if (!strcmp(key, "width")) {
+        doc->w = _toFloat(loader->svgParse, value, SvgParserLengthType::Horizontal);
+        if (strstr(value, "%") && !(doc->viewFlag & SvgViewFlag::Viewbox)) {
+            doc->viewFlag = (doc->viewFlag | SvgViewFlag::WidthInPercent);
+        } else {
+            doc->viewFlag = (doc->viewFlag | SvgViewFlag::Width);
+        }
+    } else if (!strcmp(key, "height")) {
+        doc->h = _toFloat(loader->svgParse, value, SvgParserLengthType::Vertical);
+        if (strstr(value, "%") && !(doc->viewFlag & SvgViewFlag::Viewbox)) {
+            doc->viewFlag = (doc->viewFlag | SvgViewFlag::HeightInPercent);
+        } else {
+            doc->viewFlag = (doc->viewFlag | SvgViewFlag::Height);
+        }
+    } else if (!strcmp(key, "viewBox")) {
+        if (_parseNumber(&value, &doc->vx)) {
+            if (_parseNumber(&value, &doc->vy)) {
+                if (_parseNumber(&value, &doc->vw)) {
+                    if (_parseNumber(&value, &doc->vh)) {
+                        doc->viewFlag = (doc->viewFlag | SvgViewFlag::Viewbox);
+                        loader->svgParse->global.h = doc->vh;
+                    }
+                    loader->svgParse->global.w = doc->vw;
+                }
+                loader->svgParse->global.y = doc->vy;
+            }
+            loader->svgParse->global.x = doc->vx;
+        }
+        if ((doc->viewFlag & SvgViewFlag::Viewbox) && (doc->vw < 0.0f || doc->vh < 0.0f)) {
+            doc->viewFlag = (SvgViewFlag)((uint32_t)doc->viewFlag & ~(uint32_t)SvgViewFlag::Viewbox);
+            TVGLOG("SVG", "Negative values of the <viewBox> width and/or height - the attribute invalidated.");
+        }
+        if (!(doc->viewFlag & SvgViewFlag::Viewbox)) {
+            loader->svgParse->global.x = loader->svgParse->global.y = 0.0f;
+            loader->svgParse->global.w = loader->svgParse->global.h = 1.0f;
+        }
+    } else if (!strcmp(key, "preserveAspectRatio")) {
+        _parseAspectRatio(&value, &doc->align, &doc->meetOrSlice);
+    } else if (!strcmp(key, "style")) {
+        return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+#ifdef THORVG_LOG_ENABLED
+    } else if ((!strcmp(key, "x") || !strcmp(key, "y")) && fabsf(strToFloat(value, nullptr)) > FLT_EPSILON) {
+        TVGLOG("SVG", "Unsupported attributes used [Elements type: Svg][Attribute: %s][Value: %s]", key, value);
+#endif
+    } else {
+        return _parseStyleAttr(loader, key, value, false);
+    }
+    return true;
+}
+
+
+//https://www.w3.org/TR/SVGTiny12/painting.html#SpecifyingPaint
+static void _handlePaintAttr(SvgPaint* paint, const char* value)
+{
+    if (!strcmp(value, "none")) {
+        //No paint property
+        paint->none = true;
+        return;
+    }
+    paint->none = false;
+    if (!strcmp(value, "currentColor")) {
+        paint->curColor = true;
+        return;
+    }
+    _toColor(value, &paint->color.r, &paint->color.g, &paint->color.b, &paint->url);
+}
+
+
+static void _handleColorAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    SvgStyleProperty* style = node->style;
+    style->curColorSet = true;
+    _toColor(value, &style->color.r, &style->color.g, &style->color.b, nullptr);
+}
+
+
+static void _handleFillAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    SvgStyleProperty* style = node->style;
+    style->fill.flags = (style->fill.flags | SvgFillFlags::Paint);
+    _handlePaintAttr(&style->fill.paint, value);
+}
+
+
+static void _handleStrokeAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    SvgStyleProperty* style = node->style;
+    style->stroke.flags = (style->stroke.flags | SvgStrokeFlags::Paint);
+    _handlePaintAttr(&style->stroke.paint, value);
+}
+
+
+static void _handleStrokeOpacityAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->style->stroke.flags = (node->style->stroke.flags | SvgStrokeFlags::Opacity);
+    node->style->stroke.opacity = _toOpacity(value);
+}
+
+static void _handleStrokeDashArrayAttr(SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->style->stroke.flags = (node->style->stroke.flags | SvgStrokeFlags::Dash);
+    _parseDashArray(loader, value, &node->style->stroke.dash);
+}
+
+static void _handleStrokeDashOffsetAttr(SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->style->stroke.flags = (node->style->stroke.flags | SvgStrokeFlags::DashOffset);
+    node->style->stroke.dash.offset = _toFloat(loader->svgParse, value, SvgParserLengthType::Horizontal);
+}
+
+static void _handleStrokeWidthAttr(SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->style->stroke.flags = (node->style->stroke.flags | SvgStrokeFlags::Width);
+    node->style->stroke.width = _toFloat(loader->svgParse, value, SvgParserLengthType::Horizontal);
+}
+
+
+static void _handleStrokeLineCapAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->style->stroke.flags = (node->style->stroke.flags | SvgStrokeFlags::Cap);
+    node->style->stroke.cap = _toLineCap(value);
+}
+
+
+static void _handleStrokeLineJoinAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->style->stroke.flags = (node->style->stroke.flags | SvgStrokeFlags::Join);
+    node->style->stroke.join = _toLineJoin(value);
+}
+
+static void _handleStrokeMiterlimitAttr(SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    char* end = nullptr;
+    const float miterlimit = strToFloat(value, &end);
+
+    // https://www.w3.org/TR/SVG2/painting.html#LineJoin
+    // - A negative value for stroke-miterlimit must be treated as an illegal value.
+    if (miterlimit < 0.0f) {
+        TVGERR("SVG", "A stroke-miterlimit change (%f <- %f) with a negative value is omitted.",
+            node->style->stroke.miterlimit, miterlimit);
+        return;
+    }
+
+    node->style->stroke.flags = (node->style->stroke.flags | SvgStrokeFlags::Miterlimit);
+    node->style->stroke.miterlimit = miterlimit;
+}
+
+static void _handleFillRuleAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->style->fill.flags = (node->style->fill.flags | SvgFillFlags::FillRule);
+    node->style->fill.fillRule = _toFillRule(value);
+}
+
+
+static void _handleOpacityAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->style->opacity = _toOpacity(value);
+}
+
+
+static void _handleFillOpacityAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->style->fill.flags = (node->style->fill.flags | SvgFillFlags::Opacity);
+    node->style->fill.opacity = _toOpacity(value);
+}
+
+
+static void _handleTransformAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->transform = _parseTransformationMatrix(value);
+}
+
+
+static void _handleClipPathAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    SvgStyleProperty* style = node->style;
+    int len = strlen(value);
+    if (len >= 3 && !strncmp(value, "url", 3)) {
+        if (style->clipPath.url) free(style->clipPath.url);
+        style->clipPath.url = _idFromUrl((const char*)(value + 3));
+    }
+}
+
+
+static void _handleMaskAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    SvgStyleProperty* style = node->style;
+    int len = strlen(value);
+    if (len >= 3 && !strncmp(value, "url", 3)) {
+        if (style->mask.url) free(style->mask.url);
+        style->mask.url = _idFromUrl((const char*)(value + 3));
+    }
+}
+
+
+static void _handleMaskTypeAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->node.mask.type = _toMaskType(value);
+}
+
+
+static void _handleDisplayAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    //TODO : The display attribute can have various values as well as "none".
+    //       The default is "inline" which means visible and "none" means invisible.
+    //       Depending on the type of node, additional functionality may be required.
+    //       refer to https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/display
+    if (!strcmp(value, "none")) node->display = false;
+    else node->display = true;
+}
+
+
+static void _handlePaintOrderAttr(TVG_UNUSED SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    node->style->flags = (node->style->flags | SvgStyleFlags::PaintOrder);
+    node->style->paintOrder = _toPaintOrder(value);
+}
+
+
+static void _handleCssClassAttr(SvgLoaderData* loader, SvgNode* node, const char* value)
+{
+    auto cssClass = &node->style->cssClass;
+
+    if (*cssClass && value) free(*cssClass);
+    *cssClass = _copyId(value);
+
+    bool cssClassFound = false;
+
+    //css styling: tag.name has higher priority than .name
+    if (auto cssNode = cssFindStyleNode(loader->cssStyle, *cssClass, node->type)) {
+        cssClassFound = true;
+        cssCopyStyleAttr(node, cssNode);
+    }
+    if (auto cssNode = cssFindStyleNode(loader->cssStyle, *cssClass)) {
+        cssClassFound = true;
+        cssCopyStyleAttr(node, cssNode);
+    }
+
+    if (!cssClassFound) _postpone(loader->nodesToStyle, node, *cssClass);
+}
+
+
+typedef void (*styleMethod)(SvgLoaderData* loader, SvgNode* node, const char* value);
+
+#define STYLE_DEF(Name, Name1, Flag) { #Name, sizeof(#Name), _handle##Name1##Attr, Flag }
+
+
+static constexpr struct
+{
+    const char* tag;
+    int sz;
+    styleMethod tagHandler;
+    SvgStyleFlags flag;
+} styleTags[] = {
+    STYLE_DEF(color, Color, SvgStyleFlags::Color),
+    STYLE_DEF(fill, Fill, SvgStyleFlags::Fill),
+    STYLE_DEF(fill-rule, FillRule, SvgStyleFlags::FillRule),
+    STYLE_DEF(fill-opacity, FillOpacity, SvgStyleFlags::FillOpacity),
+    STYLE_DEF(opacity, Opacity, SvgStyleFlags::Opacity),
+    STYLE_DEF(stroke, Stroke, SvgStyleFlags::Stroke),
+    STYLE_DEF(stroke-width, StrokeWidth, SvgStyleFlags::StrokeWidth),
+    STYLE_DEF(stroke-linejoin, StrokeLineJoin, SvgStyleFlags::StrokeLineJoin),
+    STYLE_DEF(stroke-miterlimit, StrokeMiterlimit, SvgStyleFlags::StrokeMiterlimit),
+    STYLE_DEF(stroke-linecap, StrokeLineCap, SvgStyleFlags::StrokeLineCap),
+    STYLE_DEF(stroke-opacity, StrokeOpacity, SvgStyleFlags::StrokeOpacity),
+    STYLE_DEF(stroke-dasharray, StrokeDashArray, SvgStyleFlags::StrokeDashArray),
+    STYLE_DEF(stroke-dashoffset, StrokeDashOffset, SvgStyleFlags::StrokeDashOffset),
+    STYLE_DEF(transform, Transform, SvgStyleFlags::Transform),
+    STYLE_DEF(clip-path, ClipPath, SvgStyleFlags::ClipPath),
+    STYLE_DEF(mask, Mask, SvgStyleFlags::Mask),
+    STYLE_DEF(mask-type, MaskType, SvgStyleFlags::MaskType),
+    STYLE_DEF(display, Display, SvgStyleFlags::Display),
+    STYLE_DEF(paint-order, PaintOrder, SvgStyleFlags::PaintOrder)
+};
+
+
+static bool _parseStyleAttr(void* data, const char* key, const char* value, bool style)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    int sz;
+    if (!key || !value) return false;
+
+    //Trim the white space
+    key = _skipSpace(key, nullptr);
+    value = _skipSpace(value, nullptr);
+
+    sz = strlen(key);
+    for (unsigned int i = 0; i < sizeof(styleTags) / sizeof(styleTags[0]); i++) {
+        if (styleTags[i].sz - 1 == sz && !strncmp(styleTags[i].tag, key, sz)) {
+            bool importance = false;
+            if (auto ptr = strstr(value, "!important")) {
+                size_t size = ptr - value;
+                while (size > 0 && isspace(value[size - 1])) {
+                    size--;
+                }
+                value = strDuplicate(value, size);
+                importance = true;
+            }
+            if (style) {
+                if (importance || !(node->style->flagsImportance & styleTags[i].flag)) {
+                    styleTags[i].tagHandler(loader, node, value);
+                    node->style->flags = (node->style->flags | styleTags[i].flag);
+                }
+            } else if (!(node->style->flags & styleTags[i].flag)) {
+                styleTags[i].tagHandler(loader, node, value);
+            }
+            if (importance) {
+                node->style->flagsImportance = (node->style->flags | styleTags[i].flag);
+                free(const_cast<char*>(value));
+            }
+            return true;
+        }
+    }
+
+    return false;
+}
+
+
+static bool _parseStyleAttr(void* data, const char* key, const char* value)
+{
+    return _parseStyleAttr(data, key, value, true);
+}
+
+
+/* parse g node
+ * https://www.w3.org/TR/SVG/struct.html#Groups
+ */
+static bool _attrParseGNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+
+    if (!strcmp(key, "style")) {
+        return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+    } else if (!strcmp(key, "transform")) {
+        node->transform = _parseTransformationMatrix(value);
+    } else if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else if (!strcmp(key, "class")) {
+        _handleCssClassAttr(loader, node, value);
+    } else if (!strcmp(key, "clip-path")) {
+        _handleClipPathAttr(loader, node, value);
+    } else if (!strcmp(key, "mask")) {
+        _handleMaskAttr(loader, node, value);
+    } else {
+        return _parseStyleAttr(loader, key, value, false);
+    }
+    return true;
+}
+
+
+/* parse clipPath node
+ * https://www.w3.org/TR/SVG/struct.html#Groups
+ */
+static bool _attrParseClipPathNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgClipNode* clip = &(node->node.clip);
+
+    if (!strcmp(key, "style")) {
+        return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+    } else if (!strcmp(key, "transform")) {
+        node->transform = _parseTransformationMatrix(value);
+    } else if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else if (!strcmp(key, "class")) {
+        _handleCssClassAttr(loader, node, value);
+    } else if (!strcmp(key, "clipPathUnits")) {
+        if (!strcmp(value, "objectBoundingBox")) clip->userSpace = false;
+    } else {
+        return _parseStyleAttr(loader, key, value, false);
+    }
+    return true;
+}
+
+
+static bool _attrParseMaskNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgMaskNode* mask = &(node->node.mask);
+
+    if (!strcmp(key, "style")) {
+        return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+    } else if (!strcmp(key, "transform")) {
+        node->transform = _parseTransformationMatrix(value);
+    } else if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else if (!strcmp(key, "class")) {
+        _handleCssClassAttr(loader, node, value);
+    } else if (!strcmp(key, "maskContentUnits")) {
+        if (!strcmp(value, "objectBoundingBox")) mask->userSpace = false;
+    } else if (!strcmp(key, "mask-type")) {
+        mask->type = _toMaskType(value);
+    } else {
+        return _parseStyleAttr(loader, key, value, false);
+    }
+    return true;
+}
+
+
+static bool _attrParseCssStyleNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+
+    if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else {
+        return _parseStyleAttr(loader, key, value, false);
+    }
+    return true;
+}
+
+
+static bool _attrParseSymbolNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgSymbolNode* symbol = &(node->node.symbol);
+
+    if (!strcmp(key, "viewBox")) {
+        if (!_parseNumber(&value, &symbol->vx) || !_parseNumber(&value, &symbol->vy)) return false;
+        if (!_parseNumber(&value, &symbol->vw) || !_parseNumber(&value, &symbol->vh)) return false;
+        symbol->hasViewBox = true;
+    } else if (!strcmp(key, "width")) {
+        symbol->w = _toFloat(loader->svgParse, value, SvgParserLengthType::Horizontal);
+        symbol->hasWidth = true;
+    } else if (!strcmp(key, "height")) {
+        symbol->h = _toFloat(loader->svgParse, value, SvgParserLengthType::Vertical);
+        symbol->hasHeight = true;
+    } else if (!strcmp(key, "preserveAspectRatio")) {
+        _parseAspectRatio(&value, &symbol->align, &symbol->meetOrSlice);
+    } else if (!strcmp(key, "overflow")) {
+        if (!strcmp(value, "visible")) symbol->overflowVisible = true;
+    } else {
+        return _attrParseGNode(data, key, value);
+    }
+
+    return true;
+}
+
+
+static SvgNode* _createNode(SvgNode* parent, SvgNodeType type)
+{
+    SvgNode* node = (SvgNode*)calloc(1, sizeof(SvgNode));
+
+    if (!node) return nullptr;
+
+    //Default fill property
+    node->style = (SvgStyleProperty*)calloc(1, sizeof(SvgStyleProperty));
+
+    if (!node->style) {
+        free(node);
+        return nullptr;
+    }
+
+    //Update the default value of stroke and fill
+    //https://www.w3.org/TR/SVGTiny12/painting.html#SpecifyingPaint
+    node->style->fill.paint.none = false;
+    //Default fill opacity is 1
+    node->style->fill.opacity = 255;
+    node->style->opacity = 255;
+    //Default current color is not set
+    node->style->fill.paint.curColor = false;
+    node->style->curColorSet = false;
+    //Default fill rule is nonzero
+    node->style->fill.fillRule = FillRule::Winding;
+
+    //Default stroke is none
+    node->style->stroke.paint.none = true;
+    //Default stroke opacity is 1
+    node->style->stroke.opacity = 255;
+    //Default stroke current color is not set
+    node->style->stroke.paint.curColor = false;
+    //Default stroke width is 1
+    node->style->stroke.width = 1;
+    //Default line cap is butt
+    node->style->stroke.cap = StrokeCap::Butt;
+    //Default line join is miter
+    node->style->stroke.join = StrokeJoin::Miter;
+    node->style->stroke.miterlimit = 4.0f;
+    node->style->stroke.scale = 1.0;
+
+    node->style->paintOrder = _toPaintOrder("fill stroke");
+
+    //Default display is true("inline").
+    node->display = true;
+
+    node->parent = parent;
+    node->type = type;
+
+    if (parent) parent->child.push(node);
+    return node;
+}
+
+
+static SvgNode* _createDefsNode(TVG_UNUSED SvgLoaderData* loader, TVG_UNUSED SvgNode* parent, const char* buf, unsigned bufLength, TVG_UNUSED parseAttributes func)
+{
+    if (loader->def && loader->doc->node.doc.defs) return loader->def;
+    SvgNode* node = _createNode(nullptr, SvgNodeType::Defs);
+
+    loader->def = node;
+    loader->doc->node.doc.defs = node;
+    return node;
+}
+
+
+static SvgNode* _createGNode(TVG_UNUSED SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::G);
+    if (!loader->svgParse->node) return nullptr;
+
+    func(buf, bufLength, _attrParseGNode, loader);
+    return loader->svgParse->node;
+}
+
+
+static SvgNode* _createSvgNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Doc);
+    if (!loader->svgParse->node) return nullptr;
+    SvgDocNode* doc = &(loader->svgParse->node->node.doc);
+
+    loader->svgParse->global.w = 1.0f;
+    loader->svgParse->global.h = 1.0f;
+
+    doc->align = AspectRatioAlign::XMidYMid;
+    doc->meetOrSlice = AspectRatioMeetOrSlice::Meet;
+    doc->viewFlag = SvgViewFlag::None;
+    func(buf, bufLength, _attrParseSvgNode, loader);
+
+    if (!(doc->viewFlag & SvgViewFlag::Viewbox)) {
+        if (doc->viewFlag & SvgViewFlag::Width) {
+            loader->svgParse->global.w = doc->w;
+        }
+        if (doc->viewFlag & SvgViewFlag::Height) {
+            loader->svgParse->global.h = doc->h;
+        }
+    }
+    return loader->svgParse->node;
+}
+
+
+static SvgNode* _createMaskNode(SvgLoaderData* loader, SvgNode* parent, TVG_UNUSED const char* buf, TVG_UNUSED unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Mask);
+    if (!loader->svgParse->node) return nullptr;
+
+    loader->svgParse->node->node.mask.userSpace = true;
+    loader->svgParse->node->node.mask.type = SvgMaskType::Luminance;
+
+    func(buf, bufLength, _attrParseMaskNode, loader);
+
+    return loader->svgParse->node;
+}
+
+
+static SvgNode* _createClipPathNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::ClipPath);
+    if (!loader->svgParse->node) return nullptr;
+
+    loader->svgParse->node->display = false;
+    loader->svgParse->node->node.clip.userSpace = true;
+
+    func(buf, bufLength, _attrParseClipPathNode, loader);
+
+    return loader->svgParse->node;
+}
+
+
+static SvgNode* _createCssStyleNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::CssStyle);
+    if (!loader->svgParse->node) return nullptr;
+
+    func(buf, bufLength, _attrParseCssStyleNode, loader);
+
+    return loader->svgParse->node;
+}
+
+
+static SvgNode* _createSymbolNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Symbol);
+    if (!loader->svgParse->node) return nullptr;
+
+    loader->svgParse->node->display = false;
+    loader->svgParse->node->node.symbol.align = AspectRatioAlign::XMidYMid;
+    loader->svgParse->node->node.symbol.meetOrSlice = AspectRatioMeetOrSlice::Meet;
+    loader->svgParse->node->node.symbol.overflowVisible = false;
+
+    loader->svgParse->node->node.symbol.hasViewBox = false;
+    loader->svgParse->node->node.symbol.hasWidth = false;
+    loader->svgParse->node->node.symbol.hasHeight = false;
+    loader->svgParse->node->node.symbol.vx = 0.0f;
+    loader->svgParse->node->node.symbol.vy = 0.0f;
+
+    func(buf, bufLength, _attrParseSymbolNode, loader);
+
+    return loader->svgParse->node;
+}
+
+
+static bool _attrParsePathNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgPathNode* path = &(node->node.path);
+
+    if (!strcmp(key, "d")) {
+        if (path->path) free(path->path);
+        //Temporary: need to copy
+        path->path = _copyId(value);
+    } else if (!strcmp(key, "style")) {
+        return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+    } else if (!strcmp(key, "clip-path")) {
+        _handleClipPathAttr(loader, node, value);
+    } else if (!strcmp(key, "mask")) {
+        _handleMaskAttr(loader, node, value);
+    } else if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else if (!strcmp(key, "class")) {
+        _handleCssClassAttr(loader, node, value);
+    } else {
+        return _parseStyleAttr(loader, key, value, false);
+    }
+    return true;
+}
+
+
+static SvgNode* _createPathNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Path);
+
+    if (!loader->svgParse->node) return nullptr;
+
+    func(buf, bufLength, _attrParsePathNode, loader);
+
+    return loader->svgParse->node;
+}
+
+
+static constexpr struct
+{
+    const char* tag;
+    SvgParserLengthType type;
+    int sz;
+    size_t offset;
+} circleTags[] = {
+    {"cx", SvgParserLengthType::Horizontal, sizeof("cx"), offsetof(SvgCircleNode, cx)},
+    {"cy", SvgParserLengthType::Vertical, sizeof("cy"), offsetof(SvgCircleNode, cy)},
+    {"r", SvgParserLengthType::Other, sizeof("r"), offsetof(SvgCircleNode, r)}
+};
+
+
+/* parse the attributes for a circle element.
+ * https://www.w3.org/TR/SVG/shapes.html#CircleElement
+ */
+static bool _attrParseCircleNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgCircleNode* circle = &(node->node.circle);
+    unsigned char* array;
+    int sz = strlen(key);
+
+    array = (unsigned char*)circle;
+    for (unsigned int i = 0; i < sizeof(circleTags) / sizeof(circleTags[0]); i++) {
+        if (circleTags[i].sz - 1 == sz && !strncmp(circleTags[i].tag, key, sz)) {
+            *((float*)(array + circleTags[i].offset)) = _toFloat(loader->svgParse, value, circleTags[i].type);
+            return true;
+        }
+    }
+
+    if (!strcmp(key, "style")) {
+        return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+    } else if (!strcmp(key, "clip-path")) {
+        _handleClipPathAttr(loader, node, value);
+    } else if (!strcmp(key, "mask")) {
+        _handleMaskAttr(loader, node, value);
+    } else if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else if (!strcmp(key, "class")) {
+        _handleCssClassAttr(loader, node, value);
+    } else {
+        return _parseStyleAttr(loader, key, value, false);
+    }
+    return true;
+}
+
+
+static SvgNode* _createCircleNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Circle);
+
+    if (!loader->svgParse->node) return nullptr;
+
+    func(buf, bufLength, _attrParseCircleNode, loader);
+    return loader->svgParse->node;
+}
+
+
+static constexpr struct
+{
+    const char* tag;
+    SvgParserLengthType type;
+    int sz;
+    size_t offset;
+} ellipseTags[] = {
+    {"cx", SvgParserLengthType::Horizontal, sizeof("cx"), offsetof(SvgEllipseNode, cx)},
+    {"cy", SvgParserLengthType::Vertical, sizeof("cy"), offsetof(SvgEllipseNode, cy)},
+    {"rx", SvgParserLengthType::Horizontal, sizeof("rx"), offsetof(SvgEllipseNode, rx)},
+    {"ry", SvgParserLengthType::Vertical, sizeof("ry"), offsetof(SvgEllipseNode, ry)}
+};
+
+
+/* parse the attributes for an ellipse element.
+ * https://www.w3.org/TR/SVG/shapes.html#EllipseElement
+ */
+static bool _attrParseEllipseNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgEllipseNode* ellipse = &(node->node.ellipse);
+    unsigned char* array;
+    int sz = strlen(key);
+
+    array = (unsigned char*)ellipse;
+    for (unsigned int i = 0; i < sizeof(ellipseTags) / sizeof(ellipseTags[0]); i++) {
+        if (ellipseTags[i].sz - 1 == sz && !strncmp(ellipseTags[i].tag, key, sz)) {
+            *((float*)(array + ellipseTags[i].offset)) = _toFloat(loader->svgParse, value, ellipseTags[i].type);
+            return true;
+        }
+    }
+
+    if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else if (!strcmp(key, "class")) {
+        _handleCssClassAttr(loader, node, value);
+    } else if (!strcmp(key, "style")) {
+        return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+    } else if (!strcmp(key, "clip-path")) {
+        _handleClipPathAttr(loader, node, value);
+    } else if (!strcmp(key, "mask")) {
+        _handleMaskAttr(loader, node, value);
+    } else {
+        return _parseStyleAttr(loader, key, value, false);
+    }
+    return true;
+}
+
+
+static SvgNode* _createEllipseNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Ellipse);
+
+    if (!loader->svgParse->node) return nullptr;
+
+    func(buf, bufLength, _attrParseEllipseNode, loader);
+    return loader->svgParse->node;
+}
+
+
+static bool _attrParsePolygonPoints(const char* str, SvgPolygonNode* polygon)
+{
+    float num;
+    while (_parseNumber(&str, &num)) polygon->pts.push(num);
+    return true;
+}
+
+
+/* parse the attributes for a polygon element.
+ * https://www.w3.org/TR/SVG/shapes.html#PolylineElement
+ */
+static bool _attrParsePolygonNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgPolygonNode* polygon = nullptr;
+
+    if (node->type == SvgNodeType::Polygon) polygon = &(node->node.polygon);
+    else polygon = &(node->node.polyline);
+
+    if (!strcmp(key, "points")) {
+        return _attrParsePolygonPoints(value, polygon);
+    } else if (!strcmp(key, "style")) {
+        return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+    } else if (!strcmp(key, "clip-path")) {
+        _handleClipPathAttr(loader, node, value);
+    } else if (!strcmp(key, "mask")) {
+        _handleMaskAttr(loader, node, value);
+    } else if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else if (!strcmp(key, "class")) {
+        _handleCssClassAttr(loader, node, value);
+    } else {
+        return _parseStyleAttr(loader, key, value, false);
+    }
+    return true;
+}
+
+
+static SvgNode* _createPolygonNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Polygon);
+
+    if (!loader->svgParse->node) return nullptr;
+
+    func(buf, bufLength, _attrParsePolygonNode, loader);
+    return loader->svgParse->node;
+}
+
+
+static SvgNode* _createPolylineNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Polyline);
+
+    if (!loader->svgParse->node) return nullptr;
+
+    func(buf, bufLength, _attrParsePolygonNode, loader);
+    return loader->svgParse->node;
+}
+
+static constexpr struct
+{
+    const char* tag;
+    SvgParserLengthType type;
+    int sz;
+    size_t offset;
+} rectTags[] = {
+    {"x", SvgParserLengthType::Horizontal, sizeof("x"), offsetof(SvgRectNode, x)},
+    {"y", SvgParserLengthType::Vertical, sizeof("y"), offsetof(SvgRectNode, y)},
+    {"width", SvgParserLengthType::Horizontal, sizeof("width"), offsetof(SvgRectNode, w)},
+    {"height", SvgParserLengthType::Vertical, sizeof("height"), offsetof(SvgRectNode, h)},
+    {"rx", SvgParserLengthType::Horizontal, sizeof("rx"), offsetof(SvgRectNode, rx)},
+    {"ry", SvgParserLengthType::Vertical, sizeof("ry"), offsetof(SvgRectNode, ry)}
+};
+
+
+/* parse the attributes for a rect element.
+ * https://www.w3.org/TR/SVG/shapes.html#RectElement
+ */
+static bool _attrParseRectNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgRectNode* rect = &(node->node.rect);
+    unsigned char* array;
+    bool ret = true;
+    int sz = strlen(key);
+
+    array = (unsigned char*)rect;
+    for (unsigned int i = 0; i < sizeof(rectTags) / sizeof(rectTags[0]); i++) {
+        if (rectTags[i].sz - 1 == sz && !strncmp(rectTags[i].tag, key, sz)) {
+            *((float*)(array + rectTags[i].offset)) = _toFloat(loader->svgParse, value, rectTags[i].type);
+
+            //Case if only rx or ry is declared
+            if (!strncmp(rectTags[i].tag, "rx", sz)) rect->hasRx = true;
+            if (!strncmp(rectTags[i].tag, "ry", sz)) rect->hasRy = true;
+
+            if ((rect->rx >= FLT_EPSILON) && (rect->ry < FLT_EPSILON) && rect->hasRx && !rect->hasRy) rect->ry = rect->rx;
+            if ((rect->ry >= FLT_EPSILON) && (rect->rx < FLT_EPSILON) && !rect->hasRx && rect->hasRy) rect->rx = rect->ry;
+            return ret;
+        }
+    }
+
+    if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else if (!strcmp(key, "class")) {
+        _handleCssClassAttr(loader, node, value);
+    } else if (!strcmp(key, "style")) {
+        ret = simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+    } else if (!strcmp(key, "clip-path")) {
+        _handleClipPathAttr(loader, node, value);
+    } else if (!strcmp(key, "mask")) {
+        _handleMaskAttr(loader, node, value);
+    } else {
+        ret = _parseStyleAttr(loader, key, value, false);
+    }
+
+    return ret;
+}
+
+
+static SvgNode* _createRectNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Rect);
+
+    if (!loader->svgParse->node) return nullptr;
+
+    loader->svgParse->node->node.rect.hasRx = loader->svgParse->node->node.rect.hasRy = false;
+
+    func(buf, bufLength, _attrParseRectNode, loader);
+    return loader->svgParse->node;
+}
+
+
+static constexpr struct
+{
+    const char* tag;
+    SvgParserLengthType type;
+    int sz;
+    size_t offset;
+} lineTags[] = {
+    {"x1", SvgParserLengthType::Horizontal, sizeof("x1"), offsetof(SvgLineNode, x1)},
+    {"y1", SvgParserLengthType::Vertical, sizeof("y1"), offsetof(SvgLineNode, y1)},
+    {"x2", SvgParserLengthType::Horizontal, sizeof("x2"), offsetof(SvgLineNode, x2)},
+    {"y2", SvgParserLengthType::Vertical, sizeof("y2"), offsetof(SvgLineNode, y2)}
+};
+
+
+/* parse the attributes for a line element.
+ * https://www.w3.org/TR/SVG/shapes.html#LineElement
+ */
+static bool _attrParseLineNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgLineNode* line = &(node->node.line);
+    unsigned char* array;
+    int sz = strlen(key);
+
+    array = (unsigned char*)line;
+    for (unsigned int i = 0; i < sizeof(lineTags) / sizeof(lineTags[0]); i++) {
+        if (lineTags[i].sz - 1 == sz && !strncmp(lineTags[i].tag, key, sz)) {
+            *((float*)(array + lineTags[i].offset)) = _toFloat(loader->svgParse, value, lineTags[i].type);
+            return true;
+        }
+    }
+
+    if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else if (!strcmp(key, "class")) {
+        _handleCssClassAttr(loader, node, value);
+    } else if (!strcmp(key, "style")) {
+        return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+    } else if (!strcmp(key, "clip-path")) {
+        _handleClipPathAttr(loader, node, value);
+    } else if (!strcmp(key, "mask")) {
+        _handleMaskAttr(loader, node, value);
+    } else {
+        return _parseStyleAttr(loader, key, value, false);
+    }
+    return true;
+}
+
+
+static SvgNode* _createLineNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Line);
+
+    if (!loader->svgParse->node) return nullptr;
+
+    func(buf, bufLength, _attrParseLineNode, loader);
+    return loader->svgParse->node;
+}
+
+
+static char* _idFromHref(const char* href)
+{
+    href = _skipSpace(href, nullptr);
+    if ((*href) == '#') href++;
+    return strdup(href);
+}
+
+
+static constexpr struct
+{
+    const char* tag;
+    SvgParserLengthType type;
+    int sz;
+    size_t offset;
+} imageTags[] = {
+    {"x", SvgParserLengthType::Horizontal, sizeof("x"), offsetof(SvgRectNode, x)},
+    {"y", SvgParserLengthType::Vertical, sizeof("y"), offsetof(SvgRectNode, y)},
+    {"width", SvgParserLengthType::Horizontal, sizeof("width"), offsetof(SvgRectNode, w)},
+    {"height", SvgParserLengthType::Vertical, sizeof("height"), offsetof(SvgRectNode, h)},
+};
+
+
+/* parse the attributes for a image element.
+ * https://www.w3.org/TR/SVG/embedded.html#ImageElement
+ */
+static bool _attrParseImageNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode* node = loader->svgParse->node;
+    SvgImageNode* image = &(node->node.image);
+    unsigned char* array;
+    int sz = strlen(key);
+
+    array = (unsigned char*)image;
+    for (unsigned int i = 0; i < sizeof(imageTags) / sizeof(imageTags[0]); i++) {
+        if (imageTags[i].sz - 1 == sz && !strncmp(imageTags[i].tag, key, sz)) {
+            *((float*)(array + imageTags[i].offset)) = _toFloat(loader->svgParse, value, imageTags[i].type);
+            return true;
+        }
+    }
+
+    if (!strcmp(key, "href") || !strcmp(key, "xlink:href")) {
+        if (image->href && value) free(image->href);
+        image->href = _idFromHref(value);
+    } else if (!strcmp(key, "id")) {
+        if (node->id && value) free(node->id);
+        node->id = _copyId(value);
+    } else if (!strcmp(key, "class")) {
+        _handleCssClassAttr(loader, node, value);
+    } else if (!strcmp(key, "style")) {
+        return simpleXmlParseW3CAttribute(value, strlen(value), _parseStyleAttr, loader);
+    } else if (!strcmp(key, "clip-path")) {
+        _handleClipPathAttr(loader, node, value);
+    } else if (!strcmp(key, "mask")) {
+        _handleMaskAttr(loader, node, value);
+    } else if (!strcmp(key, "transform")) {
+        node->transform = _parseTransformationMatrix(value);
+    } else {
+        return _parseStyleAttr(loader, key, value);
+    }
+    return true;
+}
+
+
+static SvgNode* _createImageNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Image);
+
+    if (!loader->svgParse->node) return nullptr;
+
+    func(buf, bufLength, _attrParseImageNode, loader);
+    return loader->svgParse->node;
+}
+
+
+static SvgNode* _getDefsNode(SvgNode* node)
+{
+    if (!node) return nullptr;
+
+    while (node->parent != nullptr) {
+        node = node->parent;
+    }
+
+    if (node->type == SvgNodeType::Doc) return node->node.doc.defs;
+    if (node->type == SvgNodeType::Defs) return node;
+
+    return nullptr;
+}
+
+
+static SvgNode* _findNodeById(SvgNode *node, const char* id)
+{
+    if (!node) return nullptr;
+
+    SvgNode* result = nullptr;
+    if (node->id && !strcmp(node->id, id)) return node;
+
+    if (node->child.count > 0) {
+        auto child = node->child.data;
+        for (uint32_t i = 0; i < node->child.count; ++i, ++child) {
+            result = _findNodeById(*child, id);
+            if (result) break;
+        }
+    }
+    return result;
+}
+
+
+static constexpr struct
+{
+    const char* tag;
+    SvgParserLengthType type;
+    int sz;
+    size_t offset;
+} useTags[] = {
+    {"x", SvgParserLengthType::Horizontal, sizeof("x"), offsetof(SvgUseNode, x)},
+    {"y", SvgParserLengthType::Vertical, sizeof("y"), offsetof(SvgUseNode, y)},
+    {"width", SvgParserLengthType::Horizontal, sizeof("width"), offsetof(SvgUseNode, w)},
+    {"height", SvgParserLengthType::Vertical, sizeof("height"), offsetof(SvgUseNode, h)}
+};
+
+
+static void _cloneNode(SvgNode* from, SvgNode* parent, int depth);
+static bool _attrParseUseNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgNode *defs, *nodeFrom, *node = loader->svgParse->node;
+    char* id;
+
+    SvgUseNode* use = &(node->node.use);
+    int sz = strlen(key);
+    unsigned char* array = (unsigned char*)use;
+    for (unsigned int i = 0; i < sizeof(useTags) / sizeof(useTags[0]); i++) {
+        if (useTags[i].sz - 1 == sz && !strncmp(useTags[i].tag, key, sz)) {
+            *((float*)(array + useTags[i].offset)) = _toFloat(loader->svgParse, value, useTags[i].type);
+
+            if (useTags[i].offset == offsetof(SvgUseNode, w)) use->isWidthSet = true;
+            else if (useTags[i].offset == offsetof(SvgUseNode, h)) use->isHeightSet = true;
+
+            return true;
+        }
+    }
+
+    if (!strcmp(key, "href") || !strcmp(key, "xlink:href")) {
+        id = _idFromHref(value);
+        defs = _getDefsNode(node);
+        nodeFrom = _findNodeById(defs, id);
+        if (nodeFrom) {
+            _cloneNode(nodeFrom, node, 0);
+            if (nodeFrom->type == SvgNodeType::Symbol) use->symbol = nodeFrom;
+            free(id);
+        } else {
+            //some svg export software include <defs> element at the end of the file
+            //if so the 'from' element won't be found now and we have to repeat finding
+            //after the whole file is parsed
+            _postpone(loader->cloneNodes, node, id);
+        }
+    } else {
+        return _attrParseGNode(data, key, value);
+    }
+    return true;
+}
+
+
+static SvgNode* _createUseNode(SvgLoaderData* loader, SvgNode* parent, const char* buf, unsigned bufLength, parseAttributes func)
+{
+    loader->svgParse->node = _createNode(parent, SvgNodeType::Use);
+
+    if (!loader->svgParse->node) return nullptr;
+
+    loader->svgParse->node->node.use.isWidthSet = false;
+    loader->svgParse->node->node.use.isHeightSet = false;
+
+    func(buf, bufLength, _attrParseUseNode, loader);
+    return loader->svgParse->node;
+}
+
+
+//TODO: Implement 'text' primitive
+static constexpr struct
+{
+    const char* tag;
+    int sz;
+    FactoryMethod tagHandler;
+} graphicsTags[] = {
+    {"use", sizeof("use"), _createUseNode},
+    {"circle", sizeof("circle"), _createCircleNode},
+    {"ellipse", sizeof("ellipse"), _createEllipseNode},
+    {"path", sizeof("path"), _createPathNode},
+    {"polygon", sizeof("polygon"), _createPolygonNode},
+    {"rect", sizeof("rect"), _createRectNode},
+    {"polyline", sizeof("polyline"), _createPolylineNode},
+    {"line", sizeof("line"), _createLineNode},
+    {"image", sizeof("image"), _createImageNode}
+};
+
+
+static constexpr struct
+{
+    const char* tag;
+    int sz;
+    FactoryMethod tagHandler;
+} groupTags[] = {
+    {"defs", sizeof("defs"), _createDefsNode},
+    {"g", sizeof("g"), _createGNode},
+    {"svg", sizeof("svg"), _createSvgNode},
+    {"mask", sizeof("mask"), _createMaskNode},
+    {"clipPath", sizeof("clipPath"), _createClipPathNode},
+    {"style", sizeof("style"), _createCssStyleNode},
+    {"symbol", sizeof("symbol"), _createSymbolNode}
+};
+
+
+#define FIND_FACTORY(Short_Name, Tags_Array)                                           \
+    static FactoryMethod                                                               \
+        _find##Short_Name##Factory(const char* name)                                   \
+    {                                                                                  \
+        unsigned int i;                                                                \
+        int sz = strlen(name);                                                         \
+                                                                                       \
+        for (i = 0; i < sizeof(Tags_Array) / sizeof(Tags_Array[0]); i++) {             \
+            if (Tags_Array[i].sz - 1 == sz && !strncmp(Tags_Array[i].tag, name, sz)) { \
+                return Tags_Array[i].tagHandler;                                       \
+            }                                                                          \
+        }                                                                              \
+        return nullptr;                                                                \
+    }
+
+FIND_FACTORY(Group, groupTags)
+FIND_FACTORY(Graphics, graphicsTags)
+
+
+FillSpread _parseSpreadValue(const char* value)
+{
+    auto spread = FillSpread::Pad;
+
+    if (!strcmp(value, "reflect")) {
+        spread = FillSpread::Reflect;
+    } else if (!strcmp(value, "repeat")) {
+        spread = FillSpread::Repeat;
+    }
+
+    return spread;
+}
+
+
+static void _handleRadialCxAttr(SvgLoaderData* loader, SvgRadialGradient* radial, const char* value)
+{
+    radial->cx = _gradientToFloat(loader->svgParse, value, radial->isCxPercentage);
+    if (!loader->svgParse->gradient.parsedFx) {
+        radial->fx = radial->cx;
+        radial->isFxPercentage = radial->isCxPercentage;
+    }
+}
+
+
+static void _handleRadialCyAttr(SvgLoaderData* loader, SvgRadialGradient* radial, const char* value)
+{
+    radial->cy = _gradientToFloat(loader->svgParse, value, radial->isCyPercentage);
+    if (!loader->svgParse->gradient.parsedFy) {
+        radial->fy = radial->cy;
+        radial->isFyPercentage = radial->isCyPercentage;
+    }
+}
+
+
+static void _handleRadialFxAttr(SvgLoaderData* loader, SvgRadialGradient* radial, const char* value)
+{
+    radial->fx = _gradientToFloat(loader->svgParse, value, radial->isFxPercentage);
+    loader->svgParse->gradient.parsedFx = true;
+}
+
+
+static void _handleRadialFyAttr(SvgLoaderData* loader, SvgRadialGradient* radial, const char* value)
+{
+    radial->fy = _gradientToFloat(loader->svgParse, value, radial->isFyPercentage);
+    loader->svgParse->gradient.parsedFy = true;
+}
+
+
+static void _handleRadialFrAttr(SvgLoaderData* loader, SvgRadialGradient* radial, const char* value)
+{
+    radial->fr = _gradientToFloat(loader->svgParse, value, radial->isFrPercentage);
+}
+
+
+static void _handleRadialRAttr(SvgLoaderData* loader, SvgRadialGradient* radial, const char* value)
+{
+    radial->r = _gradientToFloat(loader->svgParse, value, radial->isRPercentage);
+}
+
+
+static void _recalcRadialCxAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    if (userSpace && !radial->isCxPercentage) radial->cx = radial->cx / loader->svgParse->global.w;
+}
+
+
+static void _recalcRadialCyAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    if (userSpace && !radial->isCyPercentage) radial->cy = radial->cy / loader->svgParse->global.h;
+}
+
+
+static void _recalcRadialFxAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    if (userSpace && !radial->isFxPercentage) radial->fx = radial->fx / loader->svgParse->global.w;
+}
+
+
+static void _recalcRadialFyAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    if (userSpace && !radial->isFyPercentage) radial->fy = radial->fy / loader->svgParse->global.h;
+}
+
+
+static void _recalcRadialFrAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    // scaling factor based on the Units paragraph from : https://www.w3.org/TR/2015/WD-SVG2-20150915/coords.html
+    if (userSpace && !radial->isFrPercentage) radial->fr = radial->fr / (sqrtf(powf(loader->svgParse->global.h, 2) + powf(loader->svgParse->global.w, 2)) / sqrtf(2.0));
+}
+
+
+static void _recalcRadialRAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    // scaling factor based on the Units paragraph from : https://www.w3.org/TR/2015/WD-SVG2-20150915/coords.html
+    if (userSpace && !radial->isRPercentage) radial->r = radial->r / (sqrtf(powf(loader->svgParse->global.h, 2) + powf(loader->svgParse->global.w, 2)) / sqrtf(2.0));
+}
+
+
+static void _recalcInheritedRadialCxAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    if (!radial->isCxPercentage) {
+        if (userSpace) radial->cx /= loader->svgParse->global.w;
+        else radial->cx *= loader->svgParse->global.w;
+    }
+}
+
+
+static void _recalcInheritedRadialCyAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    if (!radial->isCyPercentage) {
+        if (userSpace) radial->cy /= loader->svgParse->global.h;
+        else radial->cy *= loader->svgParse->global.h;
+    }
+}
+
+
+static void _recalcInheritedRadialFxAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    if (!radial->isFxPercentage) {
+        if (userSpace) radial->fx /= loader->svgParse->global.w;
+        else radial->fx *= loader->svgParse->global.w;
+    }
+}
+
+
+static void _recalcInheritedRadialFyAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    if (!radial->isFyPercentage) {
+        if (userSpace) radial->fy /= loader->svgParse->global.h;
+        else radial->fy *= loader->svgParse->global.h;
+    }
+}
+
+
+static void _recalcInheritedRadialFrAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    if (!radial->isFrPercentage) {
+        if (userSpace) radial->fr /= sqrtf(powf(loader->svgParse->global.h, 2) + powf(loader->svgParse->global.w, 2)) / sqrtf(2.0);
+        else radial->fr *= sqrtf(powf(loader->svgParse->global.h, 2) + powf(loader->svgParse->global.w, 2)) / sqrtf(2.0);
+    }
+}
+
+
+static void _recalcInheritedRadialRAttr(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace)
+{
+    if (!radial->isRPercentage) {
+        if (userSpace) radial->r /= sqrtf(powf(loader->svgParse->global.h, 2) + powf(loader->svgParse->global.w, 2)) / sqrtf(2.0);
+        else radial->r *= sqrtf(powf(loader->svgParse->global.h, 2) + powf(loader->svgParse->global.w, 2)) / sqrtf(2.0);
+    }
+}
+
+
+static void _inheritRadialCxAttr(SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    to->radial->cx = from->radial->cx;
+    to->radial->isCxPercentage = from->radial->isCxPercentage;
+    to->flags = (to->flags | SvgGradientFlags::Cx);
+}
+
+
+static void _inheritRadialCyAttr(SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    to->radial->cy = from->radial->cy;
+    to->radial->isCyPercentage = from->radial->isCyPercentage;
+    to->flags = (to->flags | SvgGradientFlags::Cy);
+}
+
+
+static void _inheritRadialFxAttr(SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    to->radial->fx = from->radial->fx;
+    to->radial->isFxPercentage = from->radial->isFxPercentage;
+    to->flags = (to->flags | SvgGradientFlags::Fx);
+}
+
+
+static void _inheritRadialFyAttr(SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    to->radial->fy = from->radial->fy;
+    to->radial->isFyPercentage = from->radial->isFyPercentage;
+    to->flags = (to->flags | SvgGradientFlags::Fy);
+}
+
+
+static void _inheritRadialFrAttr(SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    to->radial->fr = from->radial->fr;
+    to->radial->isFrPercentage = from->radial->isFrPercentage;
+    to->flags = (to->flags | SvgGradientFlags::Fr);
+}
+
+
+static void _inheritRadialRAttr(SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    to->radial->r = from->radial->r;
+    to->radial->isRPercentage = from->radial->isRPercentage;
+    to->flags = (to->flags | SvgGradientFlags::R);
+}
+
+
+typedef void (*radialMethod)(SvgLoaderData* loader, SvgRadialGradient* radial, const char* value);
+typedef void (*radialInheritMethod)(SvgStyleGradient* to, SvgStyleGradient* from);
+typedef void (*radialMethodRecalc)(SvgLoaderData* loader, SvgRadialGradient* radial, bool userSpace);
+
+
+#define RADIAL_DEF(Name, Name1, Flag)                                                    \
+    {                                                                                    \
+#Name, sizeof(#Name), _handleRadial##Name1##Attr, _inheritRadial##Name1##Attr, _recalcRadial##Name1##Attr, _recalcInheritedRadial##Name1##Attr, Flag \
+    }
+
+
+static constexpr struct
+{
+    const char* tag;
+    int sz;
+    radialMethod tagHandler;
+    radialInheritMethod tagInheritHandler;
+    radialMethodRecalc tagRecalc;
+    radialMethodRecalc tagInheritedRecalc;
+    SvgGradientFlags flag;
+} radialTags[] = {
+    RADIAL_DEF(cx, Cx, SvgGradientFlags::Cx),
+    RADIAL_DEF(cy, Cy, SvgGradientFlags::Cy),
+    RADIAL_DEF(fx, Fx, SvgGradientFlags::Fx),
+    RADIAL_DEF(fy, Fy, SvgGradientFlags::Fy),
+    RADIAL_DEF(r, R, SvgGradientFlags::R),
+    RADIAL_DEF(fr, Fr, SvgGradientFlags::Fr)
+};
+
+
+static bool _attrParseRadialGradientNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgStyleGradient* grad = loader->svgParse->styleGrad;
+    SvgRadialGradient* radial = grad->radial;
+    int sz = strlen(key);
+
+    for (unsigned int i = 0; i < sizeof(radialTags) / sizeof(radialTags[0]); i++) {
+        if (radialTags[i].sz - 1 == sz && !strncmp(radialTags[i].tag, key, sz)) {
+            radialTags[i].tagHandler(loader, radial, value);
+            grad->flags = (grad->flags | radialTags[i].flag);
+            return true;
+        }
+    }
+
+    if (!strcmp(key, "id")) {
+        if (grad->id && value) free(grad->id);
+        grad->id = _copyId(value);
+    } else if (!strcmp(key, "spreadMethod")) {
+        grad->spread = _parseSpreadValue(value);
+        grad->flags = (grad->flags | SvgGradientFlags::SpreadMethod);
+    } else if (!strcmp(key, "href") || !strcmp(key, "xlink:href")) {
+        if (grad->ref && value) free(grad->ref);
+        grad->ref = _idFromHref(value);
+    } else if (!strcmp(key, "gradientUnits")) {
+        if (!strcmp(value, "userSpaceOnUse")) grad->userSpace = true;
+        grad->flags = (grad->flags | SvgGradientFlags::GradientUnits);
+    } else if (!strcmp(key, "gradientTransform")) {
+        grad->transform = _parseTransformationMatrix(value);
+    } else {
+        return false;
+    }
+
+    return true;
+}
+
+
+static SvgStyleGradient* _createRadialGradient(SvgLoaderData* loader, const char* buf, unsigned bufLength)
+{
+    auto grad = (SvgStyleGradient*)(calloc(1, sizeof(SvgStyleGradient)));
+    loader->svgParse->styleGrad = grad;
+
+    grad->flags = SvgGradientFlags::None;
+    grad->type = SvgGradientType::Radial;
+    grad->userSpace = false;
+    grad->radial = (SvgRadialGradient*)calloc(1, sizeof(SvgRadialGradient));
+    if (!grad->radial) {
+        grad->clear();
+        free(grad);
+        return nullptr;
+    }
+    /**
+    * Default values of gradient transformed into global percentage
+    */
+    grad->radial->cx = 0.5f;
+    grad->radial->cy = 0.5f;
+    grad->radial->fx = 0.5f;
+    grad->radial->fy = 0.5f;
+    grad->radial->r = 0.5f;
+    grad->radial->isCxPercentage = true;
+    grad->radial->isCyPercentage = true;
+    grad->radial->isFxPercentage = true;
+    grad->radial->isFyPercentage = true;
+    grad->radial->isRPercentage = true;
+    grad->radial->isFrPercentage = true;
+
+    loader->svgParse->gradient.parsedFx = false;
+    loader->svgParse->gradient.parsedFy = false;
+    simpleXmlParseAttributes(buf, bufLength,
+        _attrParseRadialGradientNode, loader);
+
+    for (unsigned int i = 0; i < sizeof(radialTags) / sizeof(radialTags[0]); i++) {
+        radialTags[i].tagRecalc(loader, grad->radial, grad->userSpace);
+    }
+
+    return loader->svgParse->styleGrad;
+}
+
+
+static bool _attrParseStopsStyle(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    auto stop = &loader->svgParse->gradStop;
+
+    if (!strcmp(key, "stop-opacity")) {
+        stop->a = _toOpacity(value);
+        loader->svgParse->flags = (loader->svgParse->flags | SvgStopStyleFlags::StopOpacity);
+    } else if (!strcmp(key, "stop-color")) {
+        _toColor(value, &stop->r, &stop->g, &stop->b, nullptr);
+        loader->svgParse->flags = (loader->svgParse->flags | SvgStopStyleFlags::StopColor);
+    } else {
+        return false;
+    }
+
+    return true;
+}
+
+
+static bool _attrParseStops(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    auto stop = &loader->svgParse->gradStop;
+
+    if (!strcmp(key, "offset")) {
+        stop->offset = _toOffset(value);
+    } else if (!strcmp(key, "stop-opacity")) {
+        if (!(loader->svgParse->flags & SvgStopStyleFlags::StopOpacity)) {
+            stop->a = _toOpacity(value);
+        }
+    } else if (!strcmp(key, "stop-color")) {
+        if (!(loader->svgParse->flags & SvgStopStyleFlags::StopColor)) {
+            _toColor(value, &stop->r, &stop->g, &stop->b, nullptr);
+        }
+    } else if (!strcmp(key, "style")) {
+        simpleXmlParseW3CAttribute(value, strlen(value), _attrParseStopsStyle, data);
+    } else {
+        return false;
+    }
+
+    return true;
+}
+
+
+static void _handleLinearX1Attr(SvgLoaderData* loader, SvgLinearGradient* linear, const char* value)
+{
+    linear->x1 = _gradientToFloat(loader->svgParse, value, linear->isX1Percentage);
+}
+
+
+static void _handleLinearY1Attr(SvgLoaderData* loader, SvgLinearGradient* linear, const char* value)
+{
+    linear->y1 = _gradientToFloat(loader->svgParse, value, linear->isY1Percentage);
+}
+
+
+static void _handleLinearX2Attr(SvgLoaderData* loader, SvgLinearGradient* linear, const char* value)
+{
+    linear->x2 = _gradientToFloat(loader->svgParse, value, linear->isX2Percentage);
+}
+
+
+static void _handleLinearY2Attr(SvgLoaderData* loader, SvgLinearGradient* linear, const char* value)
+{
+    linear->y2 = _gradientToFloat(loader->svgParse, value, linear->isY2Percentage);
+}
+
+
+static void _recalcLinearX1Attr(SvgLoaderData* loader, SvgLinearGradient* linear, bool userSpace)
+{
+    if (userSpace && !linear->isX1Percentage) linear->x1 = linear->x1 / loader->svgParse->global.w;
+}
+
+
+static void _recalcLinearY1Attr(SvgLoaderData* loader, SvgLinearGradient* linear, bool userSpace)
+{
+    if (userSpace && !linear->isY1Percentage) linear->y1 = linear->y1 / loader->svgParse->global.h;
+}
+
+
+static void _recalcLinearX2Attr(SvgLoaderData* loader, SvgLinearGradient* linear, bool userSpace)
+{
+    if (userSpace && !linear->isX2Percentage) linear->x2 = linear->x2 / loader->svgParse->global.w;
+}
+
+
+static void _recalcLinearY2Attr(SvgLoaderData* loader, SvgLinearGradient* linear, bool userSpace)
+{
+    if (userSpace && !linear->isY2Percentage) linear->y2 = linear->y2 / loader->svgParse->global.h;
+}
+
+
+static void _recalcInheritedLinearX1Attr(SvgLoaderData* loader, SvgLinearGradient* linear, bool userSpace)
+{
+    if (!linear->isX1Percentage) {
+        if (userSpace) linear->x1 /= loader->svgParse->global.w;
+        else linear->x1 *= loader->svgParse->global.w;
+    }
+}
+
+
+static void _recalcInheritedLinearX2Attr(SvgLoaderData* loader, SvgLinearGradient* linear, bool userSpace)
+{
+    if (!linear->isX2Percentage) {
+        if (userSpace) linear->x2 /= loader->svgParse->global.w;
+        else linear->x2 *= loader->svgParse->global.w;
+    }
+}
+
+
+static void _recalcInheritedLinearY1Attr(SvgLoaderData* loader, SvgLinearGradient* linear, bool userSpace)
+{
+    if (!linear->isY1Percentage) {
+        if (userSpace) linear->y1 /= loader->svgParse->global.h;
+        else linear->y1 *= loader->svgParse->global.h;
+    }
+}
+
+
+static void _recalcInheritedLinearY2Attr(SvgLoaderData* loader, SvgLinearGradient* linear, bool userSpace)
+{
+    if (!linear->isY2Percentage) {
+        if (userSpace) linear->y2 /= loader->svgParse->global.h;
+        else linear->y2 *= loader->svgParse->global.h;
+    }
+}
+
+
+static void _inheritLinearX1Attr(SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    to->linear->x1 = from->linear->x1;
+    to->linear->isX1Percentage = from->linear->isX1Percentage;
+    to->flags = (to->flags | SvgGradientFlags::X1);
+}
+
+
+static void _inheritLinearX2Attr(SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    to->linear->x2 = from->linear->x2;
+    to->linear->isX2Percentage = from->linear->isX2Percentage;
+    to->flags = (to->flags | SvgGradientFlags::X2);
+}
+
+
+static void _inheritLinearY1Attr(SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    to->linear->y1 = from->linear->y1;
+    to->linear->isY1Percentage = from->linear->isY1Percentage;
+    to->flags = (to->flags | SvgGradientFlags::Y1);
+}
+
+
+static void _inheritLinearY2Attr(SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    to->linear->y2 = from->linear->y2;
+    to->linear->isY2Percentage = from->linear->isY2Percentage;
+    to->flags = (to->flags | SvgGradientFlags::Y2);
+}
+
+
+typedef void (*Linear_Method)(SvgLoaderData* loader, SvgLinearGradient* linear, const char* value);
+typedef void (*Linear_Inherit_Method)(SvgStyleGradient* to, SvgStyleGradient* from);
+typedef void (*Linear_Method_Recalc)(SvgLoaderData* loader, SvgLinearGradient* linear, bool userSpace);
+
+
+#define LINEAR_DEF(Name, Name1, Flag)                                                    \
+    {                                                                                    \
+#Name, sizeof(#Name), _handleLinear##Name1##Attr, _inheritLinear##Name1##Attr, _recalcLinear##Name1##Attr, _recalcInheritedLinear##Name1##Attr, Flag \
+    }
+
+
+static constexpr struct
+{
+    const char* tag;
+    int sz;
+    Linear_Method tagHandler;
+    Linear_Inherit_Method tagInheritHandler;
+    Linear_Method_Recalc tagRecalc;
+    Linear_Method_Recalc tagInheritedRecalc;
+    SvgGradientFlags flag;
+} linear_tags[] = {
+    LINEAR_DEF(x1, X1, SvgGradientFlags::X1),
+    LINEAR_DEF(y1, Y1, SvgGradientFlags::Y1),
+    LINEAR_DEF(x2, X2, SvgGradientFlags::X2),
+    LINEAR_DEF(y2, Y2, SvgGradientFlags::Y2)
+};
+
+
+static bool _attrParseLinearGradientNode(void* data, const char* key, const char* value)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    SvgStyleGradient* grad = loader->svgParse->styleGrad;
+    SvgLinearGradient* linear = grad->linear;
+    int sz = strlen(key);
+
+    for (unsigned int i = 0; i < sizeof(linear_tags) / sizeof(linear_tags[0]); i++) {
+        if (linear_tags[i].sz - 1 == sz && !strncmp(linear_tags[i].tag, key, sz)) {
+            linear_tags[i].tagHandler(loader, linear, value);
+            grad->flags = (grad->flags | linear_tags[i].flag);
+            return true;
+        }
+    }
+
+    if (!strcmp(key, "id")) {
+        if (grad->id && value) free(grad->id);
+        grad->id = _copyId(value);
+    } else if (!strcmp(key, "spreadMethod")) {
+        grad->spread = _parseSpreadValue(value);
+        grad->flags = (grad->flags | SvgGradientFlags::SpreadMethod);
+    } else if (!strcmp(key, "href") || !strcmp(key, "xlink:href")) {
+        if (grad->ref && value) free(grad->ref);
+        grad->ref = _idFromHref(value);
+    } else if (!strcmp(key, "gradientUnits")) {
+        if (!strcmp(value, "userSpaceOnUse")) grad->userSpace = true;
+        grad->flags = (grad->flags | SvgGradientFlags::GradientUnits);
+    } else if (!strcmp(key, "gradientTransform")) {
+        grad->transform = _parseTransformationMatrix(value);
+    } else {
+        return false;
+    }
+
+    return true;
+}
+
+
+static SvgStyleGradient* _createLinearGradient(SvgLoaderData* loader, const char* buf, unsigned bufLength)
+{
+    auto grad = (SvgStyleGradient*)(calloc(1, sizeof(SvgStyleGradient)));
+    loader->svgParse->styleGrad = grad;
+
+    grad->flags = SvgGradientFlags::None;
+    grad->type = SvgGradientType::Linear;
+    grad->userSpace = false;
+    grad->linear = (SvgLinearGradient*)calloc(1, sizeof(SvgLinearGradient));
+    if (!grad->linear) {
+        grad->clear();
+        free(grad);
+        return nullptr;
+    }
+    /**
+    * Default value of x2 is 100% - transformed to the global percentage
+    */
+    grad->linear->x2 = 1.0f;
+    grad->linear->isX2Percentage = true;
+
+    simpleXmlParseAttributes(buf, bufLength, _attrParseLinearGradientNode, loader);
+
+    for (unsigned int i = 0; i < sizeof(linear_tags) / sizeof(linear_tags[0]); i++) {
+        linear_tags[i].tagRecalc(loader, grad->linear, grad->userSpace);
+    }
+
+    return loader->svgParse->styleGrad;
+}
+
+
+#define GRADIENT_DEF(Name, Name1)            \
+    {                                        \
+#Name, sizeof(#Name), _create##Name1         \
+    }
+
+
+/**
+ * In the case when the gradients lengths are given as numbers (not percentages)
+ * in the current user coordinate system, they are recalculated into percentages
+ * related to the canvas width and height.
+ */
+static constexpr struct
+{
+    const char* tag;
+    int sz;
+    GradientFactoryMethod tagHandler;
+} gradientTags[] = {
+    GRADIENT_DEF(linearGradient, LinearGradient),
+    GRADIENT_DEF(radialGradient, RadialGradient)
+};
+
+
+static GradientFactoryMethod _findGradientFactory(const char* name)
+{
+    int sz = strlen(name);
+
+    for (unsigned int i = 0; i < sizeof(gradientTags) / sizeof(gradientTags[0]); i++) {
+        if (gradientTags[i].sz - 1 == sz && !strncmp(gradientTags[i].tag, name, sz)) {
+            return gradientTags[i].tagHandler;
+        }
+    }
+    return nullptr;
+}
+
+
+static void _cloneGradStops(Array<Fill::ColorStop>& dst, const Array<Fill::ColorStop>& src)
+{
+    for (uint32_t i = 0; i < src.count; ++i) {
+        dst.push(src[i]);
+    }
+}
+
+
+static void _inheritGradient(SvgLoaderData* loader, SvgStyleGradient* to, SvgStyleGradient* from)
+{
+    if (!to || !from) return;
+
+    if (!(to->flags & SvgGradientFlags::SpreadMethod) && (from->flags & SvgGradientFlags::SpreadMethod)) {
+        to->spread = from->spread;
+        to->flags = (to->flags | SvgGradientFlags::SpreadMethod);
+    }
+    bool gradUnitSet = (to->flags & SvgGradientFlags::GradientUnits);
+    if (!(to->flags & SvgGradientFlags::GradientUnits) && (from->flags & SvgGradientFlags::GradientUnits)) {
+        to->userSpace = from->userSpace;
+        to->flags = (to->flags | SvgGradientFlags::GradientUnits);
+    }
+
+    if (!to->transform && from->transform) {
+        to->transform = (Matrix*)malloc(sizeof(Matrix));
+        if (to->transform) memcpy(to->transform, from->transform, sizeof(Matrix));
+    }
+
+    if (to->type == SvgGradientType::Linear && from->type == SvgGradientType::Linear) {
+        for (unsigned int i = 0; i < sizeof(linear_tags) / sizeof(linear_tags[0]); i++) {
+            bool coordSet = to->flags & linear_tags[i].flag;
+            if (!(to->flags & linear_tags[i].flag) && (from->flags & linear_tags[i].flag)) {
+                linear_tags[i].tagInheritHandler(to, from);
+            }
+
+            //GradUnits not set directly, coord set
+            if (!gradUnitSet && coordSet) {
+                linear_tags[i].tagRecalc(loader, to->linear, to->userSpace);
+            }
+            //GradUnits set, coord not set directly
+            if (to->userSpace == from->userSpace) continue;
+            if (gradUnitSet && !coordSet) {
+                linear_tags[i].tagInheritedRecalc(loader, to->linear, to->userSpace);
+            }
+        }
+    } else if (to->type == SvgGradientType::Radial && from->type == SvgGradientType::Radial) {
+        for (unsigned int i = 0; i < sizeof(radialTags) / sizeof(radialTags[0]); i++) {
+            bool coordSet = (to->flags & radialTags[i].flag);
+            if (!(to->flags & radialTags[i].flag) && (from->flags & radialTags[i].flag)) {
+                radialTags[i].tagInheritHandler(to, from);
+            }
+
+            //GradUnits not set directly, coord set
+            if (!gradUnitSet && coordSet) {
+                radialTags[i].tagRecalc(loader, to->radial, to->userSpace);
+            }
+            //GradUnits set, coord not set directly
+            if (to->userSpace == from->userSpace) continue;
+            if (gradUnitSet && !coordSet) {
+                radialTags[i].tagInheritedRecalc(loader, to->radial, to->userSpace);
+            }
+        }
+    }
+
+    if (to->stops.empty()) _cloneGradStops(to->stops, from->stops);
+}
+
+
+static SvgStyleGradient* _cloneGradient(SvgStyleGradient* from)
+{
+    if (!from) return nullptr;
+
+    auto grad = (SvgStyleGradient*)(calloc(1, sizeof(SvgStyleGradient)));
+    if (!grad) return nullptr;
+
+    grad->type = from->type;
+    grad->id = from->id ? _copyId(from->id) : nullptr;
+    grad->ref = from->ref ? _copyId(from->ref) : nullptr;
+    grad->spread = from->spread;
+    grad->userSpace = from->userSpace;
+    grad->flags = from->flags;
+
+    if (from->transform) {
+        grad->transform = (Matrix*)calloc(1, sizeof(Matrix));
+        if (grad->transform) memcpy(grad->transform, from->transform, sizeof(Matrix));
+    }
+
+    if (grad->type == SvgGradientType::Linear) {
+        grad->linear = (SvgLinearGradient*)calloc(1, sizeof(SvgLinearGradient));
+        if (!grad->linear) goto error_grad_alloc;
+        memcpy(grad->linear, from->linear, sizeof(SvgLinearGradient));
+    } else if (grad->type == SvgGradientType::Radial) {
+        grad->radial = (SvgRadialGradient*)calloc(1, sizeof(SvgRadialGradient));
+        if (!grad->radial) goto error_grad_alloc;
+        memcpy(grad->radial, from->radial, sizeof(SvgRadialGradient));
+    }
+
+    _cloneGradStops(grad->stops, from->stops);
+
+    return grad;
+
+    error_grad_alloc:
+    if (grad) {
+        grad->clear();
+        free(grad);
+    }
+    return nullptr;
+}
+
+
+static void _styleInherit(SvgStyleProperty* child, const SvgStyleProperty* parent)
+{
+    if (parent == nullptr) return;
+    //Inherit the property of parent if not present in child.
+    if (!child->curColorSet) {
+        child->color = parent->color;
+        child->curColorSet = parent->curColorSet;
+    }
+    if (!(child->flags & SvgStyleFlags::PaintOrder)) {
+        child->paintOrder = parent->paintOrder;
+    }
+    //Fill
+    if (!(child->fill.flags & SvgFillFlags::Paint)) {
+        child->fill.paint.color = parent->fill.paint.color;
+        child->fill.paint.none = parent->fill.paint.none;
+        child->fill.paint.curColor = parent->fill.paint.curColor;
+        if (parent->fill.paint.url) {
+            if (child->fill.paint.url) free(child->fill.paint.url);
+            child->fill.paint.url = _copyId(parent->fill.paint.url);
+        }
+    }
+    if (!(child->fill.flags & SvgFillFlags::Opacity)) {
+        child->fill.opacity = parent->fill.opacity;
+    }
+    if (!(child->fill.flags & SvgFillFlags::FillRule)) {
+        child->fill.fillRule = parent->fill.fillRule;
+    }
+    //Stroke
+    if (!(child->stroke.flags & SvgStrokeFlags::Paint)) {
+        child->stroke.paint.color = parent->stroke.paint.color;
+        child->stroke.paint.none = parent->stroke.paint.none;
+        child->stroke.paint.curColor = parent->stroke.paint.curColor;
+        if (parent->stroke.paint.url) {
+            if (child->stroke.paint.url) free(child->stroke.paint.url);
+            child->stroke.paint.url = _copyId(parent->stroke.paint.url);
+        }
+    }
+    if (!(child->stroke.flags & SvgStrokeFlags::Opacity)) {
+        child->stroke.opacity = parent->stroke.opacity;
+    }
+    if (!(child->stroke.flags & SvgStrokeFlags::Width)) {
+        child->stroke.width = parent->stroke.width;
+    }
+    if (!(child->stroke.flags & SvgStrokeFlags::Dash)) {
+        if (parent->stroke.dash.array.count > 0) {
+            child->stroke.dash.array.clear();
+            child->stroke.dash.array.reserve(parent->stroke.dash.array.count);
+            for (uint32_t i = 0; i < parent->stroke.dash.array.count; ++i) {
+                child->stroke.dash.array.push(parent->stroke.dash.array[i]);
+            }
+        }
+    }
+    if (!(child->stroke.flags & SvgStrokeFlags::DashOffset)) {
+        child->stroke.dash.offset = parent->stroke.dash.offset;
+    }
+    if (!(child->stroke.flags & SvgStrokeFlags::Cap)) {
+        child->stroke.cap = parent->stroke.cap;
+    }
+    if (!(child->stroke.flags & SvgStrokeFlags::Join)) {
+        child->stroke.join = parent->stroke.join;
+    }
+    if (!(child->stroke.flags & SvgStrokeFlags::Miterlimit)) {
+        child->stroke.miterlimit = parent->stroke.miterlimit;
+    }
+}
+
+
+static void _styleCopy(SvgStyleProperty* to, const SvgStyleProperty* from)
+{
+    if (from == nullptr) return;
+    //Copy the properties of 'from' only if they were explicitly set (not the default ones).
+    if (from->curColorSet) {
+        to->color = from->color;
+        to->curColorSet = true;
+    }
+    if (from->flags & SvgStyleFlags::PaintOrder) {
+        to->paintOrder = from->paintOrder;
+    }
+    //Fill
+    to->fill.flags = (to->fill.flags | from->fill.flags);
+    if (from->fill.flags & SvgFillFlags::Paint) {
+        to->fill.paint.color = from->fill.paint.color;
+        to->fill.paint.none = from->fill.paint.none;
+        to->fill.paint.curColor = from->fill.paint.curColor;
+        if (from->fill.paint.url) {
+            if (to->fill.paint.url) free(to->fill.paint.url);
+            to->fill.paint.url = _copyId(from->fill.paint.url);
+        }
+    }
+    if (from->fill.flags & SvgFillFlags::Opacity) {
+        to->fill.opacity = from->fill.opacity;
+    }
+    if (from->fill.flags & SvgFillFlags::FillRule) {
+        to->fill.fillRule = from->fill.fillRule;
+    }
+    //Stroke
+    to->stroke.flags = (to->stroke.flags | from->stroke.flags);
+    if (from->stroke.flags & SvgStrokeFlags::Paint) {
+        to->stroke.paint.color = from->stroke.paint.color;
+        to->stroke.paint.none = from->stroke.paint.none;
+        to->stroke.paint.curColor = from->stroke.paint.curColor;
+        if (from->stroke.paint.url) {
+            if (to->stroke.paint.url) free(to->stroke.paint.url);
+            to->stroke.paint.url = _copyId(from->stroke.paint.url);
+        }
+    }
+    if (from->stroke.flags & SvgStrokeFlags::Opacity) {
+        to->stroke.opacity = from->stroke.opacity;
+    }
+    if (from->stroke.flags & SvgStrokeFlags::Width) {
+        to->stroke.width = from->stroke.width;
+    }
+    if (from->stroke.flags & SvgStrokeFlags::Dash) {
+        if (from->stroke.dash.array.count > 0) {
+            to->stroke.dash.array.clear();
+            to->stroke.dash.array.reserve(from->stroke.dash.array.count);
+            for (uint32_t i = 0; i < from->stroke.dash.array.count; ++i) {
+                to->stroke.dash.array.push(from->stroke.dash.array[i]);
+            }
+        }
+    }
+    if (from->stroke.flags & SvgStrokeFlags::DashOffset) {
+        to->stroke.dash.offset = from->stroke.dash.offset;
+    }
+    if (from->stroke.flags & SvgStrokeFlags::Cap) {
+        to->stroke.cap = from->stroke.cap;
+    }
+    if (from->stroke.flags & SvgStrokeFlags::Join) {
+        to->stroke.join = from->stroke.join;
+    }
+    if (from->stroke.flags & SvgStrokeFlags::Miterlimit) {
+        to->stroke.miterlimit = from->stroke.miterlimit;
+    }
+}
+
+
+static void _copyAttr(SvgNode* to, const SvgNode* from)
+{
+    //Copy matrix attribute
+    if (from->transform) {
+        to->transform = (Matrix*)malloc(sizeof(Matrix));
+        if (to->transform) *to->transform = *from->transform;
+    }
+    //Copy style attribute
+    _styleCopy(to->style, from->style);
+    to->style->flags = (to->style->flags | from->style->flags);
+    if (from->style->clipPath.url) {
+        if (to->style->clipPath.url) free(to->style->clipPath.url);
+        to->style->clipPath.url = strdup(from->style->clipPath.url);
+    }
+    if (from->style->mask.url) {
+        if (to->style->mask.url) free(to->style->mask.url);
+        to->style->mask.url = strdup(from->style->mask.url);
+    }
+
+    //Copy node attribute
+    switch (from->type) {
+        case SvgNodeType::Circle: {
+            to->node.circle.cx = from->node.circle.cx;
+            to->node.circle.cy = from->node.circle.cy;
+            to->node.circle.r = from->node.circle.r;
+            break;
+        }
+        case SvgNodeType::Ellipse: {
+            to->node.ellipse.cx = from->node.ellipse.cx;
+            to->node.ellipse.cy = from->node.ellipse.cy;
+            to->node.ellipse.rx = from->node.ellipse.rx;
+            to->node.ellipse.ry = from->node.ellipse.ry;
+            break;
+        }
+        case SvgNodeType::Rect: {
+            to->node.rect.x = from->node.rect.x;
+            to->node.rect.y = from->node.rect.y;
+            to->node.rect.w = from->node.rect.w;
+            to->node.rect.h = from->node.rect.h;
+            to->node.rect.rx = from->node.rect.rx;
+            to->node.rect.ry = from->node.rect.ry;
+            to->node.rect.hasRx = from->node.rect.hasRx;
+            to->node.rect.hasRy = from->node.rect.hasRy;
+            break;
+        }
+        case SvgNodeType::Line: {
+            to->node.line.x1 = from->node.line.x1;
+            to->node.line.y1 = from->node.line.y1;
+            to->node.line.x2 = from->node.line.x2;
+            to->node.line.y2 = from->node.line.y2;
+            break;
+        }
+        case SvgNodeType::Path: {
+            if (from->node.path.path) {
+                if (to->node.path.path) free(to->node.path.path);
+                to->node.path.path = strdup(from->node.path.path);
+            }
+            break;
+        }
+        case SvgNodeType::Polygon: {
+            if ((to->node.polygon.pts.count = from->node.polygon.pts.count)) {
+                to->node.polygon.pts = from->node.polygon.pts;
+            }
+            break;
+        }
+        case SvgNodeType::Polyline: {
+            if ((to->node.polyline.pts.count = from->node.polyline.pts.count)) {
+                to->node.polyline.pts = from->node.polyline.pts;
+            }
+            break;
+        }
+        case SvgNodeType::Image: {
+            to->node.image.x = from->node.image.x;
+            to->node.image.y = from->node.image.y;
+            to->node.image.w = from->node.image.w;
+            to->node.image.h = from->node.image.h;
+            if (from->node.image.href) {
+                if (to->node.image.href) free(to->node.image.href);
+                to->node.image.href = strdup(from->node.image.href);
+            }
+            break;
+        }
+        case SvgNodeType::Use: {
+            to->node.use.x = from->node.use.x;
+            to->node.use.y = from->node.use.y;
+            to->node.use.w = from->node.use.w;
+            to->node.use.h = from->node.use.h;
+            to->node.use.isWidthSet = from->node.use.isWidthSet;
+            to->node.use.isHeightSet = from->node.use.isHeightSet;
+            to->node.use.symbol = from->node.use.symbol;
+            break;
+        }
+        default: {
+            break;
+        }
+    }
+}
+
+
+static void _cloneNode(SvgNode* from, SvgNode* parent, int depth)
+{
+    /* Exception handling: Prevent invalid SVG data input.
+       The size is the arbitrary value, we need an experimental size. */
+    if (depth == 8192) {
+        TVGERR("SVG", "Infinite recursive call - stopped after %d calls! Svg file may be incorrectly formatted.", depth);
+        return;
+    }
+
+    SvgNode* newNode;
+    if (!from || !parent || from == parent) return;
+
+    newNode = _createNode(parent, from->type);
+    if (!newNode) return;
+
+    _styleInherit(newNode->style, parent->style);
+    _copyAttr(newNode, from);
+
+    auto child = from->child.data;
+    for (uint32_t i = 0; i < from->child.count; ++i, ++child) {
+        _cloneNode(*child, newNode, depth + 1);
+    }
+}
+
+
+static void _clonePostponedNodes(Array<SvgNodeIdPair>* cloneNodes, SvgNode* doc)
+{
+    for (uint32_t i = 0; i < cloneNodes->count; ++i) {
+        auto nodeIdPair = (*cloneNodes)[i];
+        auto defs = _getDefsNode(nodeIdPair.node);
+        auto nodeFrom = _findNodeById(defs, nodeIdPair.id);
+        if (!nodeFrom) nodeFrom = _findNodeById(doc, nodeIdPair.id);
+        _cloneNode(nodeFrom, nodeIdPair.node, 0);
+        if (nodeFrom && nodeFrom->type == SvgNodeType::Symbol && nodeIdPair.node->type == SvgNodeType::Use) {
+            nodeIdPair.node->node.use.symbol = nodeFrom;
+        }
+        free(nodeIdPair.id);
+    }
+}
+
+
+static constexpr struct
+{
+    const char* tag;
+    size_t sz;
+} popArray[] = {
+    {"g", sizeof("g")},
+    {"svg", sizeof("svg")},
+    {"defs", sizeof("defs")},
+    {"mask", sizeof("mask")},
+    {"clipPath", sizeof("clipPath")},
+    {"style", sizeof("style")},
+    {"symbol", sizeof("symbol")}
+};
+
+
+static void _svgLoaderParserXmlClose(SvgLoaderData* loader, const char* content)
+{
+    content = _skipSpace(content, nullptr);
+
+    for (unsigned int i = 0; i < sizeof(popArray) / sizeof(popArray[0]); i++) {
+        if (!strncmp(content, popArray[i].tag, popArray[i].sz - 1)) {
+            loader->stack.pop();
+            break;
+        }
+    }
+
+    loader->level--;
+}
+
+
+static void _svgLoaderParserXmlOpen(SvgLoaderData* loader, const char* content, unsigned int length, bool empty)
+{
+    const char* attrs = nullptr;
+    int attrsLength = 0;
+    int sz = length;
+    char tagName[20] = "";
+    FactoryMethod method;
+    GradientFactoryMethod gradientMethod;
+    SvgNode *node = nullptr, *parent = nullptr;
+    loader->level++;
+    attrs = simpleXmlFindAttributesTag(content, length);
+
+    if (!attrs) {
+        //Parse the empty tag
+        attrs = content;
+        while ((attrs != nullptr) && *attrs != '>') attrs++;
+        if (empty) attrs--;
+    }
+
+    if (attrs) {
+        //Find out the tag name starting from content till sz length
+        sz = attrs - content;
+        while ((sz > 0) && (isspace(content[sz - 1]))) sz--;
+        if ((unsigned)sz >= sizeof(tagName)) return;
+        strncpy(tagName, content, sz);
+        tagName[sz] = '\0';
+        attrsLength = length - sz;
+    }
+
+    if ((method = _findGroupFactory(tagName))) {
+        //Group
+        if (empty) return;
+        if (!loader->doc) {
+            if (strcmp(tagName, "svg")) return; //Not a valid svg document
+            node = method(loader, nullptr, attrs, attrsLength, simpleXmlParseAttributes);
+            loader->doc = node;
+        } else {
+            if (!strcmp(tagName, "svg")) return; //Already loaded <svg>(SvgNodeType::Doc) tag
+            if (loader->stack.count > 0) parent = loader->stack.last();
+            else parent = loader->doc;
+            if (!strcmp(tagName, "style")) {
+                // TODO: For now only the first style node is saved. After the css id selector
+                // is introduced this if condition shouldin't be necessary any more
+                if (!loader->cssStyle) {
+                    node = method(loader, nullptr, attrs, attrsLength, simpleXmlParseAttributes);
+                    loader->cssStyle = node;
+                    loader->doc->node.doc.style = node;
+                    loader->style = true;
+                }
+            } else {
+                node = method(loader, parent, attrs, attrsLength, simpleXmlParseAttributes);
+            }
+        }
+
+        if (!node) return;
+        if (node->type != SvgNodeType::Defs || !empty) {
+            loader->stack.push(node);
+        }
+    } else if ((method = _findGraphicsFactory(tagName))) {
+        if (loader->stack.count > 0) parent = loader->stack.last();
+        else parent = loader->doc;
+        node = method(loader, parent, attrs, attrsLength, simpleXmlParseAttributes);
+    } else if ((gradientMethod = _findGradientFactory(tagName))) {
+        SvgStyleGradient* gradient;
+        gradient = gradientMethod(loader, attrs, attrsLength);
+        //FIXME: The current parsing structure does not distinguish end tags.
+        //       There is no way to know if the currently parsed gradient is in defs.
+        //       If a gradient is declared outside of defs after defs is set, it is included in the gradients of defs.
+        //       But finally, the loader has a gradient style list regardless of defs.
+        //       This is only to support this when multiple gradients are declared, even if no defs are declared.
+        //       refer to: https://developer.mozilla.org/en-US/docs/Web/SVG/Element/defs
+        if (loader->def && loader->doc->node.doc.defs) {
+            loader->def->node.defs.gradients.push(gradient);
+        } else {
+            loader->gradients.push(gradient);
+        }
+        loader->latestGradient = gradient;
+    } else if (!strcmp(tagName, "stop")) {
+        if (!loader->latestGradient) {
+            TVGLOG("SVG", "Stop element is used outside of the Gradient element");
+            return;
+        }
+        /* default value for opacity */
+        loader->svgParse->gradStop = {0.0f, 0, 0, 0, 255};
+        loader->svgParse->flags = SvgStopStyleFlags::StopDefault;
+        simpleXmlParseAttributes(attrs, attrsLength, _attrParseStops, loader);
+        loader->latestGradient->stops.push(loader->svgParse->gradStop);
+    } else if (!isIgnoreUnsupportedLogElements(tagName)) {
+        TVGLOG("SVG", "Unsupported elements used [Elements: %s]", tagName);
+    }
+}
+
+
+static void _svgLoaderParserXmlCssStyle(SvgLoaderData* loader, const char* content, unsigned int length)
+{
+    char* tag;
+    char* name;
+    const char* attrs = nullptr;
+    unsigned int attrsLength = 0;
+
+    FactoryMethod method;
+    GradientFactoryMethod gradientMethod;
+    SvgNode *node = nullptr;
+
+    while (auto next = simpleXmlParseCSSAttribute(content, length, &tag, &name, &attrs, &attrsLength)) {
+        if ((method = _findGroupFactory(tag))) {
+            if ((node = method(loader, loader->cssStyle, attrs, attrsLength, simpleXmlParseW3CAttribute))) node->id = _copyId(name);
+        } else if ((method = _findGraphicsFactory(tag))) {
+            if ((node = method(loader, loader->cssStyle, attrs, attrsLength, simpleXmlParseW3CAttribute))) node->id = _copyId(name);
+        } else if ((gradientMethod = _findGradientFactory(tag))) {
+            TVGLOG("SVG", "Unsupported elements used in the internal CSS style sheets [Elements: %s]", tag);
+        } else if (!strcmp(tag, "stop")) {
+            TVGLOG("SVG", "Unsupported elements used in the internal CSS style sheets [Elements: %s]", tag);
+        } else if (!strcmp(tag, "all")) {
+            if ((node = _createCssStyleNode(loader, loader->cssStyle, attrs, attrsLength, simpleXmlParseW3CAttribute))) node->id = _copyId(name);
+        } else if (!isIgnoreUnsupportedLogElements(tag)) {
+            TVGLOG("SVG", "Unsupported elements used in the internal CSS style sheets [Elements: %s]", tag);
+        }
+
+        length -= next - content;
+        content = next;
+
+        free(tag);
+        free(name);
+    }
+    loader->style = false;
+}
+
+
+static bool _svgLoaderParser(void* data, SimpleXMLType type, const char* content, unsigned int length)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+
+    switch (type) {
+        case SimpleXMLType::Open: {
+            _svgLoaderParserXmlOpen(loader, content, length, false);
+            break;
+        }
+        case SimpleXMLType::OpenEmpty: {
+            _svgLoaderParserXmlOpen(loader, content, length, true);
+            break;
+        }
+        case SimpleXMLType::Close: {
+            _svgLoaderParserXmlClose(loader, content);
+            break;
+        }
+        case SimpleXMLType::Data:
+        case SimpleXMLType::CData: {
+            if (loader->style) _svgLoaderParserXmlCssStyle(loader, content, length);
+            break;
+        }
+        case SimpleXMLType::DoctypeChild: {
+            break;
+        }
+        case SimpleXMLType::Ignored:
+        case SimpleXMLType::Comment:
+        case SimpleXMLType::Doctype: {
+            break;
+        }
+        default: {
+            break;
+        }
+    }
+
+    return true;
+}
+
+
+static void _inefficientNodeCheck(TVG_UNUSED SvgNode* node)
+{
+#ifdef THORVG_LOG_ENABLED
+    auto type = simpleXmlNodeTypeToString(node->type);
+
+    if (!node->display && node->type != SvgNodeType::ClipPath && node->type != SvgNodeType::Symbol) TVGLOG("SVG", "Inefficient elements used [Display is none][Node Type : %s]", type);
+    if (node->style->opacity == 0) TVGLOG("SVG", "Inefficient elements used [Opacity is zero][Node Type : %s]", type);
+    if (node->style->fill.opacity == 0 && node->style->stroke.opacity == 0) TVGLOG("SVG", "Inefficient elements used [Fill opacity and stroke opacity are zero][Node Type : %s]", type);
+
+    switch (node->type) {
+        case SvgNodeType::Path: {
+            if (!node->node.path.path) TVGLOG("SVG", "Inefficient elements used [Empty path][Node Type : %s]", type);
+            break;
+        }
+        case SvgNodeType::Ellipse: {
+            if (node->node.ellipse.rx == 0 && node->node.ellipse.ry == 0) TVGLOG("SVG", "Inefficient elements used [Size is zero][Node Type : %s]", type);
+            break;
+        }
+        case SvgNodeType::Polygon:
+        case SvgNodeType::Polyline: {
+            if (node->node.polygon.pts.count < 2) TVGLOG("SVG", "Inefficient elements used [Invalid Polygon][Node Type : %s]", type);
+            break;
+        }
+        case SvgNodeType::Circle: {
+            if (node->node.circle.r == 0) TVGLOG("SVG", "Inefficient elements used [Size is zero][Node Type : %s]", type);
+            break;
+        }
+        case SvgNodeType::Rect: {
+            if (node->node.rect.w == 0 && node->node.rect.h) TVGLOG("SVG", "Inefficient elements used [Size is zero][Node Type : %s]", type);
+            break;
+        }
+        case SvgNodeType::Line: {
+            if (node->node.line.x1 == node->node.line.x2 && node->node.line.y1 == node->node.line.y2) TVGLOG("SVG", "Inefficient elements used [Size is zero][Node Type : %s]", type);
+            break;
+        }
+        default: break;
+    }
+#endif
+}
+
+
+static void _updateStyle(SvgNode* node, SvgStyleProperty* parentStyle)
+{
+    _styleInherit(node->style, parentStyle);
+    _inefficientNodeCheck(node);
+
+    auto child = node->child.data;
+    for (uint32_t i = 0; i < node->child.count; ++i, ++child) {
+        _updateStyle(*child, node->style);
+    }
+}
+
+
+static SvgStyleGradient* _gradientDup(SvgLoaderData* loader, Array<SvgStyleGradient*>* gradients, const char* id)
+{
+    SvgStyleGradient* result = nullptr;
+
+    auto gradList = gradients->data;
+
+    for (uint32_t i = 0; i < gradients->count; ++i) {
+        if ((*gradList)->id && !strcmp((*gradList)->id, id)) {
+            result = _cloneGradient(*gradList);
+            break;
+        }
+        ++gradList;
+    }
+
+    if (result && result->ref) {
+        gradList = gradients->data;
+        for (uint32_t i = 0; i < gradients->count; ++i) {
+            if ((*gradList)->id && !strcmp((*gradList)->id, result->ref)) {
+                _inheritGradient(loader, result, *gradList);
+                break;
+            }
+            ++gradList;
+        }
+    }
+
+    return result;
+}
+
+
+static void _updateGradient(SvgLoaderData* loader, SvgNode* node, Array<SvgStyleGradient*>* gradients)
+{
+    if (node->child.count > 0) {
+        auto child = node->child.data;
+        for (uint32_t i = 0; i < node->child.count; ++i, ++child) {
+            _updateGradient(loader, *child, gradients);
+        }
+    } else {
+        if (node->style->fill.paint.url) {
+            auto newGrad = _gradientDup(loader, gradients, node->style->fill.paint.url);
+            if (newGrad) {
+                if (node->style->fill.paint.gradient) {
+                    node->style->fill.paint.gradient->clear();
+                    free(node->style->fill.paint.gradient);
+                }
+                node->style->fill.paint.gradient = newGrad;
+            }
+        }
+        if (node->style->stroke.paint.url) {
+            auto newGrad = _gradientDup(loader, gradients, node->style->stroke.paint.url);
+            if (newGrad) {
+                if (node->style->stroke.paint.gradient) {
+                    node->style->stroke.paint.gradient->clear();
+                    free(node->style->stroke.paint.gradient);
+                }
+                node->style->stroke.paint.gradient = newGrad;
+            }
+        }
+    }
+}
+
+
+static void _updateComposite(SvgNode* node, SvgNode* root)
+{
+    if (node->style->clipPath.url && !node->style->clipPath.node) {
+        SvgNode* findResult = _findNodeById(root, node->style->clipPath.url);
+        if (findResult) node->style->clipPath.node = findResult;
+    }
+    if (node->style->mask.url && !node->style->mask.node) {
+        SvgNode* findResult = _findNodeById(root, node->style->mask.url);
+        if (findResult) node->style->mask.node = findResult;
+    }
+    if (node->child.count > 0) {
+        auto child = node->child.data;
+        for (uint32_t i = 0; i < node->child.count; ++i, ++child) {
+            _updateComposite(*child, root);
+        }
+    }
+}
+
+
+static void _freeNodeStyle(SvgStyleProperty* style)
+{
+    if (!style) return;
+
+    //style->clipPath.node and style->mask.node has only the addresses of node. Therefore, node is released from _freeNode.
+    free(style->clipPath.url);
+    free(style->mask.url);
+    free(style->cssClass);
+
+    if (style->fill.paint.gradient) {
+        style->fill.paint.gradient->clear();
+        free(style->fill.paint.gradient);
+    }
+    if (style->stroke.paint.gradient) {
+        style->stroke.paint.gradient->clear();
+        free(style->stroke.paint.gradient);
+    }
+    free(style->fill.paint.url);
+    free(style->stroke.paint.url);
+    style->stroke.dash.array.reset();
+    free(style);
+}
+
+
+static void _freeNode(SvgNode* node)
+{
+    if (!node) return;
+
+    auto child = node->child.data;
+    for (uint32_t i = 0; i < node->child.count; ++i, ++child) {
+        _freeNode(*child);
+    }
+    node->child.reset();
+
+    free(node->id);
+    free(node->transform);
+    _freeNodeStyle(node->style);
+    switch (node->type) {
+         case SvgNodeType::Path: {
+             free(node->node.path.path);
+             break;
+         }
+         case SvgNodeType::Polygon: {
+             free(node->node.polygon.pts.data);
+             break;
+         }
+         case SvgNodeType::Polyline: {
+             free(node->node.polyline.pts.data);
+             break;
+         }
+         case SvgNodeType::Doc: {
+             _freeNode(node->node.doc.defs);
+             _freeNode(node->node.doc.style);
+             break;
+         }
+         case SvgNodeType::Defs: {
+             auto gradients = node->node.defs.gradients.data;
+             for (size_t i = 0; i < node->node.defs.gradients.count; ++i) {
+                 (*gradients)->clear();
+                 free(*gradients);
+                 ++gradients;
+             }
+             node->node.defs.gradients.reset();
+             break;
+         }
+         case SvgNodeType::Image: {
+             free(node->node.image.href);
+             break;
+         }
+         default: {
+             break;
+         }
+    }
+    free(node);
+}
+
+
+static bool _svgLoaderParserForValidCheckXmlOpen(SvgLoaderData* loader, const char* content, unsigned int length)
+{
+    const char* attrs = nullptr;
+    int sz = length;
+    char tagName[20] = "";
+    FactoryMethod method;
+    SvgNode *node = nullptr;
+    int attrsLength = 0;
+    loader->level++;
+    attrs = simpleXmlFindAttributesTag(content, length);
+
+    if (!attrs) {
+        //Parse the empty tag
+        attrs = content;
+        while ((attrs != nullptr) && *attrs != '>') attrs++;
+    }
+
+    if (attrs) {
+        sz = attrs - content;
+        while ((sz > 0) && (isspace(content[sz - 1]))) sz--;
+        if ((unsigned)sz >= sizeof(tagName)) return false;
+        strncpy(tagName, content, sz);
+        tagName[sz] = '\0';
+        attrsLength = length - sz;
+    }
+
+    if ((method = _findGroupFactory(tagName))) {
+        if (!loader->doc) {
+            if (strcmp(tagName, "svg")) return true; //Not a valid svg document
+            node = method(loader, nullptr, attrs, attrsLength, simpleXmlParseAttributes);
+            loader->doc = node;
+            loader->stack.push(node);
+            return false;
+        }
+    }
+    return true;
+}
+
+
+static bool _svgLoaderParserForValidCheck(void* data, SimpleXMLType type, const char* content, unsigned int length)
+{
+    SvgLoaderData* loader = (SvgLoaderData*)data;
+    bool res = true;;
+
+    switch (type) {
+        case SimpleXMLType::Open:
+        case SimpleXMLType::OpenEmpty: {
+            //If 'res' is false, it means <svg> tag is found.
+            res = _svgLoaderParserForValidCheckXmlOpen(loader, content, length);
+            break;
+        }
+        default: {
+            break;
+        }
+    }
+
+    return res;
+}
+
+
+void SvgLoader::clear(bool all)
+{
+    //flush out the intermediate data
+    free(loaderData.svgParse);
+    loaderData.svgParse = nullptr;
+
+    for (auto gradient = loaderData.gradients.data; gradient < loaderData.gradients.end(); ++gradient) {
+        (*gradient)->clear();
+        free(*gradient);
+    }
+    loaderData.gradients.reset();
+
+    _freeNode(loaderData.doc);
+    loaderData.doc = nullptr;
+    loaderData.stack.reset();
+
+    if (!all) return;
+
+    for (auto p = loaderData.images.data; p < loaderData.images.end(); ++p) {
+        free(*p);
+    }
+    loaderData.images.reset();
+
+    if (copy) free((char*)content);
+    size = 0;
+    content = nullptr;
+    copy = false;
+}
+
+
+/************************************************************************/
+/* External Class Implementation                                        */
+/************************************************************************/
+
+SvgLoader::SvgLoader()
+{
+}
+
+
+SvgLoader::~SvgLoader()
+{
+    close();
+}
+
+
+void SvgLoader::run(unsigned tid)
+{
+    //According to the SVG standard the value of the width/height of the viewbox set to 0 disables rendering
+    if ((viewFlag & SvgViewFlag::Viewbox) && (fabsf(vw) <= FLT_EPSILON || fabsf(vh) <= FLT_EPSILON)) {
+        TVGLOG("SVG", "The <viewBox> width and/or height set to 0 - rendering disabled.");
+        root = Scene::gen();
+        return;
+    }
+
+    if (!simpleXmlParse(content, size, true, _svgLoaderParser, &(loaderData))) return;
+
+    if (loaderData.doc) {
+        auto defs = loaderData.doc->node.doc.defs;
+
+        if (loaderData.nodesToStyle.count > 0) cssApplyStyleToPostponeds(loaderData.nodesToStyle, loaderData.cssStyle);
+        if (loaderData.cssStyle) cssUpdateStyle(loaderData.doc, loaderData.cssStyle);
+
+        if (loaderData.cloneNodes.count > 0) _clonePostponedNodes(&loaderData.cloneNodes, loaderData.doc);
+
+        _updateComposite(loaderData.doc, loaderData.doc);
+        if (defs) _updateComposite(loaderData.doc, defs);
+
+        _updateStyle(loaderData.doc, nullptr);
+        if (defs) _updateStyle(defs, nullptr);
+
+        if (loaderData.gradients.count > 0) _updateGradient(&loaderData, loaderData.doc, &loaderData.gradients);
+        if (defs) _updateGradient(&loaderData, loaderData.doc, &defs->node.defs.gradients);
+    }
+    root = svgSceneBuild(loaderData, {vx, vy, vw, vh}, w, h, align, meetOrSlice, svgPath, viewFlag);
+
+    //In case no viewbox and width/height data is provided the completion of loading
+    //has to be forced, in order to establish this data based on the whole picture.
+    if (!(viewFlag & SvgViewFlag::Viewbox)) {
+        //Override viewbox & size again after svg loading.
+        vx = loaderData.doc->node.doc.vx;
+        vy = loaderData.doc->node.doc.vy;
+        vw = loaderData.doc->node.doc.vw;
+        vh = loaderData.doc->node.doc.vh;
+        w = loaderData.doc->node.doc.w;
+        h = loaderData.doc->node.doc.h;
+    }
+
+    clear(false);
+}
+
+
+bool SvgLoader::header()
+{
+    //For valid check, only <svg> tag is parsed first.
+    //If the <svg> tag is found, the loaded file is valid and stores viewbox information.
+    //After that, the remaining content data is parsed in order with async.
+    loaderData.svgParse = (SvgParser*)malloc(sizeof(SvgParser));
+    if (!loaderData.svgParse) return false;
+
+    loaderData.svgParse->flags = SvgStopStyleFlags::StopDefault;
+    viewFlag = SvgViewFlag::None;
+
+    simpleXmlParse(content, size, true, _svgLoaderParserForValidCheck, &(loaderData));
+
+    if (loaderData.doc && loaderData.doc->type == SvgNodeType::Doc) {
+        viewFlag = loaderData.doc->node.doc.viewFlag;
+        align = loaderData.doc->node.doc.align;
+        meetOrSlice = loaderData.doc->node.doc.meetOrSlice;
+
+        if (viewFlag & SvgViewFlag::Viewbox) {
+            vx = loaderData.doc->node.doc.vx;
+            vy = loaderData.doc->node.doc.vy;
+            vw = loaderData.doc->node.doc.vw;
+            vh = loaderData.doc->node.doc.vh;
+
+            if (viewFlag & SvgViewFlag::Width) w = loaderData.doc->node.doc.w;
+            else {
+                w = loaderData.doc->node.doc.vw;
+                if (viewFlag & SvgViewFlag::WidthInPercent) {
+                    w *= loaderData.doc->node.doc.w;
+                    viewFlag = (viewFlag ^ SvgViewFlag::WidthInPercent);
+                }
+                viewFlag = (viewFlag | SvgViewFlag::Width);
+            }
+            if (viewFlag & SvgViewFlag::Height) h = loaderData.doc->node.doc.h;
+            else {
+                h = loaderData.doc->node.doc.vh;
+                if (viewFlag & SvgViewFlag::HeightInPercent) {
+                    h *= loaderData.doc->node.doc.h;
+                    viewFlag = (viewFlag ^ SvgViewFlag::HeightInPercent);
+                }
+                viewFlag = (viewFlag | SvgViewFlag::Height);
+            }
+        //In case no viewbox and width/height data is provided the completion of loading
+        //has to be forced, in order to establish this data based on the whole picture.
+        } else {
+            //Before loading, set default viewbox & size if they are empty
+            vx = vy = 0.0f;
+            if (viewFlag & SvgViewFlag::Width) {
+                vw = w = loaderData.doc->node.doc.w;
+            } else {
+                vw = 1.0f;
+                if (viewFlag & SvgViewFlag::WidthInPercent) {
+                    w = loaderData.doc->node.doc.w;
+                } else w = 1.0f;
+            }
+
+            if (viewFlag & SvgViewFlag::Height) {
+                vh = h = loaderData.doc->node.doc.h;
+            } else {
+                vh = 1.0f;
+                if (viewFlag & SvgViewFlag::HeightInPercent) {
+                    h = loaderData.doc->node.doc.h;
+                } else h = 1.0f;
+            }
+
+            run(0);
+        }
+
+        return true;
+    }
+
+    TVGLOG("SVG", "No SVG File. There is no <svg/>");
+    return false;
+}
+
+
+bool SvgLoader::open(const char* data, uint32_t size, bool copy)
+{
+    clear();
+
+    if (copy) {
+        content = (char*)malloc(size);
+        if (!content) return false;
+        memcpy((char*)content, data, size);
+    } else content = data;
+
+    this->size = size;
+    this->copy = copy;
+
+    return header();
+}
+
+
+bool SvgLoader::open(const string& path)
+{
+    clear();
+
+    ifstream f;
+    f.open(path);
+
+    if (!f.is_open()) return false;
+
+    svgPath = path;
+    getline(f, filePath, '\0');
+    f.close();
+
+    if (filePath.empty()) return false;
+
+    content = filePath.c_str();
+    size = filePath.size();
+
+    return header();
+}
+
+
+bool SvgLoader::resize(Paint* paint, float w, float h)
+{
+    if (!paint) return false;
+
+    auto sx = w / this->w;
+    auto sy = h / this->h;
+    Matrix m = {sx, 0, 0, 0, sy, 0, 0, 0, 1};
+    paint->transform(m);
+
+    return true;
+}
+
+
+bool SvgLoader::read()
+{
+    if (!content || size == 0) return false;
+
+    //the loading has been already completed in header()
+    if (root) return true;
+
+    TaskScheduler::request(this);
+
+    return true;
+}
+
+
+bool SvgLoader::close()
+{
+    this->done();
+
+    clear();
+
+    return true;
+}
+
+
+unique_ptr<Paint> SvgLoader::paint()
+{
+    this->done();
+    return std::move(root);
+}
+
+#endif /* LV_USE_THORVG_INTERNAL */
+