godot/thirdparty/thorvg/src/loaders/svg/tvgSvgSceneBuilder.cpp

/*
 * Copyright (c) 2020 - 2024 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 "tvgMath.h" /* to include math.h before cstring */
#include <cstring>
#include <string>
#include "tvgShape.h"
#include "tvgCompressor.h"
#include "tvgPaint.h"
#include "tvgFill.h"
#include "tvgStr.h"
#include "tvgSvgLoaderCommon.h"
#include "tvgSvgSceneBuilder.h"
#include "tvgSvgPath.h"
#include "tvgSvgUtil.h"

/************************************************************************/
/* Internal Class Implementation                                        */
/************************************************************************/

static bool _appendShape(SvgLoaderData& loaderData, SvgNode* node, Shape* shape, const Box& vBox, const string& svgPath);
static bool _appendClipShape(SvgLoaderData& loaderData, SvgNode* node, Shape* shape, const Box& vBox, const string& svgPath, const Matrix* transform);
static unique_ptr<Scene> _sceneBuildHelper(SvgLoaderData& loaderData, const SvgNode* node, const Box& vBox, const string& svgPath, bool mask, int depth, bool* isMaskWhite = nullptr);


static inline bool _isGroupType(SvgNodeType type)
{ … }


//According to: https://www.w3.org/TR/SVG11/coords.html#ObjectBoundingBoxUnits (the last paragraph)
//a stroke width should be ignored for bounding box calculations
static Box _boundingBox(const Shape* shape)
{ … }


static Box _boundingBox(const Text* text)
{ … }


static void _transformMultiply(const Matrix* mBBox, Matrix* gradTransf)
{ … }


static unique_ptr<LinearGradient> _applyLinearGradientProperty(SvgStyleGradient* g, const Box& vBox, int opacity)
{ … }


static unique_ptr<RadialGradient> _applyRadialGradientProperty(SvgStyleGradient* g, const Box& vBox, int opacity)
{ … }


//The SVG standard allows only for 'use' nodes that point directly to a basic shape.
static bool _appendClipUseNode(SvgLoaderData& loaderData, SvgNode* node, Shape* shape, const Box& vBox, const string& svgPath)
{ … }


static bool _appendClipChild(SvgLoaderData& loaderData, SvgNode* node, Shape* shape, const Box& vBox, const string& svgPath, bool clip)
{ … }


static Matrix _compositionTransform(Paint* paint, const SvgNode* node, const SvgNode* compNode, SvgNodeType type)
{ … }


static void _applyComposition(SvgLoaderData& loaderData, Paint* paint, const SvgNode* node, const Box& vBox, const string& svgPath)
{ … }


static void _applyProperty(SvgLoaderData& loaderData, SvgNode* node, Shape* vg, const Box& vBox, const string& svgPath, bool clip)
{ … }


static unique_ptr<Shape> _shapeBuildHelper(SvgLoaderData& loaderData, SvgNode* node, const Box& vBox, const string& svgPath)
{ … }


static bool _recognizeShape(SvgNode* node, Shape* shape)
{ … }


static bool _appendShape(SvgLoaderData& loaderData, SvgNode* node, Shape* shape, const Box& vBox, const string& svgPath)
{ … }


static bool _appendClipShape(SvgLoaderData& loaderData, SvgNode* node, Shape* shape, const Box& vBox, const string& svgPath, const Matrix* transform)
{ … }


enum class imageMimeTypeEncoding
{ … };

constexpr imageMimeTypeEncoding operator|(imageMimeTypeEncoding a, imageMimeTypeEncoding b) { … }

constexpr bool operator&(imageMimeTypeEncoding a, imageMimeTypeEncoding b) { … }


static constexpr struct
{ … } imageMimeTypes[] = …;


static bool _isValidImageMimeTypeAndEncoding(const char** href, const char** mimetype, imageMimeTypeEncoding* encoding) { … }

#include "tvgTaskScheduler.h"

static unique_ptr<Picture> _imageBuildHelper(SvgLoaderData& loaderData, SvgNode* node, const Box& vBox, const string& svgPath)
{ … }


static Matrix _calculateAspectRatioMatrix(AspectRatioAlign align, AspectRatioMeetOrSlice meetOrSlice, float width, float height, const Box& box)
{ … }


static unique_ptr<Scene> _useBuildHelper(SvgLoaderData& loaderData, const SvgNode* node, const Box& vBox, const string& svgPath, int depth, bool* isMaskWhite)
{ … }


static void _applyTextFill(SvgStyleProperty* style, Text* text, const Box& vBox)
{ … }


static unique_ptr<Text> _textBuildHelper(SvgLoaderData& loaderData, const SvgNode* node, const Box& vBox, const string& svgPath)
{ … }


static unique_ptr<Scene> _sceneBuildHelper(SvgLoaderData& loaderData, const SvgNode* node, const Box& vBox, const string& svgPath, bool mask, int depth, bool* isMaskWhite)
{ … }


static void _updateInvalidViewSize(const Scene* scene, Box& vBox, float& w, float& h, SvgViewFlag viewFlag)
{ … }

/************************************************************************/
/* External Class Implementation                                        */
/************************************************************************/

Scene* svgSceneBuild(SvgLoaderData& loaderData, Box vBox, float w, float h, AspectRatioAlign align, AspectRatioMeetOrSlice meetOrSlice, const string& svgPath, SvgViewFlag viewFlag)
{ … }