mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-25 21:21:35 +00:00
53cafa9f3d
This commit adds support for go/cgo tgs conversion when building with the -tags `cgo` The default binaries are still "pure" go and uses the old way of converting. * Move lottie_convert.py conversion code to its own file * Add optional libtgsconverter * Update vendor * Apply suggestions from code review * Update bridge/helper/libtgsconverter.go Co-authored-by: Wim <wim@42.be>
2391 lines
70 KiB
C++
2391 lines
70 KiB
C++
/*
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* Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved.
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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//#define DEBUG_PARSER
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// This parser implements JSON token-by-token parsing with an API that is
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// more direct; we don't have to create handler object and
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// callbacks. Instead, we retrieve values from the JSON stream by calling
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// GetInt(), GetDouble(), GetString() and GetBool(), traverse into structures
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// by calling EnterObject() and EnterArray(), and skip over unwanted data by
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// calling SkipValue(). As we know the lottie file structure this way will be
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// the efficient way of parsing the file.
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//
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// If you aren't sure of what's next in the JSON data, you can use PeekType()
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// and PeekValue() to look ahead to the next object before reading it.
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//
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// If you call the wrong retrieval method--e.g. GetInt when the next JSON token
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// is not an int, EnterObject or EnterArray when there isn't actually an object
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// or array to read--the stream parsing will end immediately and no more data
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// will be delivered.
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//
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// After calling EnterObject, you retrieve keys via NextObjectKey() and values
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// via the normal getters. When NextObjectKey() returns null, you have exited
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// the object, or you can call SkipObject() to skip to the end of the object
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// immediately. If you fetch the entire object (i.e. NextObjectKey() returned
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// null), you should not call SkipObject().
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//
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// After calling EnterArray(), you must alternate between calling
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// NextArrayValue() to see if the array has more data, and then retrieving
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// values via the normal getters. You can call SkipArray() to skip to the end of
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// the array immediately. If you fetch the entire array (i.e. NextArrayValue()
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// returned null), you should not call SkipArray().
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//
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// This parser uses in-situ strings, so the JSON buffer will be altered during
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// the parse.
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#include <array>
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#include "lottie_lottiemodel.h"
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#include "lottie_rapidjson_document.h"
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RAPIDJSON_DIAG_PUSH
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#ifdef __GNUC__
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RAPIDJSON_DIAG_OFF(effc++)
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#endif
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using namespace rapidjson;
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using namespace rlottie::internal;
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class LookaheadParserHandler {
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public:
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bool Null()
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{
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st_ = kHasNull;
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v_.SetNull();
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return true;
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}
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bool Bool(bool b)
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{
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st_ = kHasBool;
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v_.SetBool(b);
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return true;
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}
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bool Int(int i)
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{
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st_ = kHasNumber;
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v_.SetInt(i);
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return true;
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}
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bool Uint(unsigned u)
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{
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st_ = kHasNumber;
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v_.SetUint(u);
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return true;
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}
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bool Int64(int64_t i)
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{
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st_ = kHasNumber;
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v_.SetInt64(i);
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return true;
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}
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bool Uint64(int64_t u)
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{
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st_ = kHasNumber;
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v_.SetUint64(u);
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return true;
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}
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bool Double(double d)
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{
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st_ = kHasNumber;
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v_.SetDouble(d);
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return true;
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}
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bool RawNumber(const char *, SizeType, bool) { return false; }
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bool String(const char *str, SizeType length, bool)
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{
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st_ = kHasString;
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v_.SetString(str, length);
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return true;
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}
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bool StartObject()
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{
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st_ = kEnteringObject;
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return true;
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}
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bool Key(const char *str, SizeType length, bool)
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{
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st_ = kHasKey;
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v_.SetString(str, length);
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return true;
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}
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bool EndObject(SizeType)
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{
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st_ = kExitingObject;
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return true;
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}
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bool StartArray()
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{
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st_ = kEnteringArray;
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return true;
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}
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bool EndArray(SizeType)
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{
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st_ = kExitingArray;
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return true;
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}
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void Error()
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{
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st_ = kError;
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}
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protected:
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explicit LookaheadParserHandler(char *str);
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protected:
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enum LookaheadParsingState {
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kInit,
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kError,
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kHasNull,
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kHasBool,
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kHasNumber,
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kHasString,
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kHasKey,
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kEnteringObject,
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kExitingObject,
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kEnteringArray,
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kExitingArray
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};
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Value v_;
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LookaheadParsingState st_;
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Reader r_;
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InsituStringStream ss_;
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static const int parseFlags = kParseDefaultFlags | kParseInsituFlag;
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};
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class LottieParserImpl : public LookaheadParserHandler {
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public:
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LottieParserImpl(char *str, std::string dir_path, model::ColorFilter filter)
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: LookaheadParserHandler(str),
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mColorFilter(std::move(filter)),
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mDirPath(std::move(dir_path))
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{
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}
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bool VerifyType();
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bool ParseNext();
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public:
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VArenaAlloc &allocator() { return compRef->mArenaAlloc; }
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bool EnterObject();
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bool EnterArray();
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const char * NextObjectKey();
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bool NextArrayValue();
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int GetInt();
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double GetDouble();
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const char * GetString();
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std::string GetStringObject();
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bool GetBool();
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void GetNull();
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void SkipObject();
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void SkipArray();
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void SkipValue();
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Value *PeekValue();
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int PeekType() const;
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bool IsValid() { return st_ != kError; }
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void Skip(const char *key);
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model::BlendMode getBlendMode();
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CapStyle getLineCap();
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JoinStyle getLineJoin();
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FillRule getFillRule();
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model::Trim::TrimType getTrimType();
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model::MatteType getMatteType();
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model::Layer::Type getLayerType();
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std::shared_ptr<model::Composition> composition() const
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{
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return mComposition;
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}
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void parseComposition();
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void parseMarkers();
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void parseMarker();
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void parseAssets(model::Composition *comp);
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model::Asset * parseAsset();
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void parseLayers(model::Composition *comp);
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model::Layer * parseLayer();
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void parseMaskProperty(model::Layer *layer);
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void parseShapesAttr(model::Layer *layer);
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void parseObject(model::Group *parent);
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model::Mask * parseMaskObject();
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model::Object * parseObjectTypeAttr();
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model::Object * parseGroupObject();
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model::Rect * parseRectObject();
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model::RoundedCorner * parseRoundedCorner();
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void updateRoundedCorner(model::Group *parent, model::RoundedCorner *rc);
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model::Ellipse * parseEllipseObject();
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model::Path * parseShapeObject();
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model::Polystar *parsePolystarObject();
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model::Transform * parseTransformObject(bool ddd = false);
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model::Fill * parseFillObject();
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model::GradientFill * parseGFillObject();
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model::Stroke * parseStrokeObject();
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model::GradientStroke *parseGStrokeObject();
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model::Trim * parseTrimObject();
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model::Repeater * parseReapeaterObject();
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void parseGradientProperty(model::Gradient *gradient, const char *key);
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VPointF parseInperpolatorPoint();
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void getValue(VPointF &pt);
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void getValue(float &fval);
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void getValue(model::Color &color);
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void getValue(int &ival);
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void getValue(model::PathData &shape);
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void getValue(model::Gradient::Data &gradient);
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void getValue(std::vector<VPointF> &v);
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void getValue(model::Repeater::Transform &);
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template <typename T, typename Tag>
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bool parseKeyFrameValue(const char *, model::Value<T, Tag> &)
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{
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return false;
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}
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template <typename T>
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bool parseKeyFrameValue(const char * key,
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model::Value<T, model::Position> &value);
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template <typename T, typename Tag>
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void parseKeyFrame(model::KeyFrames<T, Tag> &obj);
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template <typename T>
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void parseProperty(model::Property<T> &obj);
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template <typename T, typename Tag>
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void parsePropertyHelper(model::Property<T, Tag> &obj);
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void parseShapeProperty(model::Property<model::PathData> &obj);
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void parseDashProperty(model::Dash &dash);
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VInterpolator *interpolator(VPointF, VPointF, std::string);
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model::Color toColor(const char *str);
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void resolveLayerRefs();
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void parsePathInfo();
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private:
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model::ColorFilter mColorFilter;
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struct {
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std::vector<VPointF> mInPoint; /* "i" */
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std::vector<VPointF> mOutPoint; /* "o" */
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std::vector<VPointF> mVertices; /* "v" */
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std::vector<VPointF> mResult;
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bool mClosed{false};
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void convert()
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{
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// shape data could be empty.
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if (mInPoint.empty() || mOutPoint.empty() || mVertices.empty()) {
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mResult.clear();
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return;
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}
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/*
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* Convert the AE shape format to
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* list of bazier curves
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* The final structure will be Move +size*Cubic + Cubic (if the path
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* is closed one)
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*/
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if (mInPoint.size() != mOutPoint.size() ||
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mInPoint.size() != mVertices.size()) {
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mResult.clear();
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} else {
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auto size = mVertices.size();
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mResult.push_back(mVertices[0]);
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for (size_t i = 1; i < size; i++) {
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mResult.push_back(
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mVertices[i - 1] +
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mOutPoint[i - 1]); // CP1 = start + outTangent
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mResult.push_back(mVertices[i] +
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mInPoint[i]); // CP2 = end + inTangent
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mResult.push_back(mVertices[i]); // end point
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}
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if (mClosed) {
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mResult.push_back(
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mVertices[size - 1] +
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mOutPoint[size - 1]); // CP1 = start + outTangent
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mResult.push_back(mVertices[0] +
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mInPoint[0]); // CP2 = end + inTangent
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mResult.push_back(mVertices[0]); // end point
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}
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}
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}
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void reset()
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{
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mInPoint.clear();
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mOutPoint.clear();
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mVertices.clear();
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mResult.clear();
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mClosed = false;
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}
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void updatePath(VPath &out)
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{
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if (mResult.empty()) return;
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auto size = mResult.size();
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auto points = mResult.data();
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/* reserve exact memory requirement at once
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* ptSize = size + 1(size + close)
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* elmSize = size/3 cubic + 1 move + 1 close
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*/
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out.reserve(size + 1, size / 3 + 2);
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out.moveTo(points[0]);
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for (size_t i = 1; i < size; i += 3) {
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out.cubicTo(points[i], points[i + 1], points[i + 2]);
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}
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if (mClosed) out.close();
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}
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} mPathInfo;
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protected:
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std::unordered_map<std::string, VInterpolator *> mInterpolatorCache;
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std::shared_ptr<model::Composition> mComposition;
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model::Composition * compRef{nullptr};
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model::Layer * curLayerRef{nullptr};
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std::vector<model::Layer *> mLayersToUpdate;
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std::string mDirPath;
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void SkipOut(int depth);
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};
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LookaheadParserHandler::LookaheadParserHandler(char *str)
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: v_(), st_(kInit), ss_(str)
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{
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r_.IterativeParseInit();
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}
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bool LottieParserImpl::VerifyType()
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{
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/* Verify the media type is lottie json.
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Could add more strict check. */
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return ParseNext();
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}
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bool LottieParserImpl::ParseNext()
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{
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if (r_.HasParseError()) {
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st_ = kError;
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return false;
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}
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if (!r_.IterativeParseNext<parseFlags>(ss_, *this)) {
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vCritical << "Lottie file parsing error";
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st_ = kError;
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return false;
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}
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return true;
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}
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bool LottieParserImpl::EnterObject()
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{
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if (st_ != kEnteringObject) {
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st_ = kError;
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return false;
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}
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ParseNext();
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return true;
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}
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bool LottieParserImpl::EnterArray()
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{
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if (st_ != kEnteringArray) {
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st_ = kError;
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return false;
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}
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ParseNext();
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return true;
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}
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const char *LottieParserImpl::NextObjectKey()
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{
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if (st_ == kHasKey) {
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const char *result = v_.GetString();
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ParseNext();
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return result;
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}
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/* SPECIAL CASE
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* The parser works with a prdefined rule that it will be only
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* while (NextObjectKey()) for each object but in case of our nested group
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* object we can call multiple time NextObjectKey() while exiting the object
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* so ignore those and don't put parser in the error state.
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* */
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if (st_ == kExitingArray || st_ == kEnteringObject) {
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// #ifdef DEBUG_PARSER
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// vDebug<<"Object: Exiting nested loop";
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// #endif
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return nullptr;
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}
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if (st_ != kExitingObject) {
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st_ = kError;
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return nullptr;
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}
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ParseNext();
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return nullptr;
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}
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bool LottieParserImpl::NextArrayValue()
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{
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if (st_ == kExitingArray) {
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ParseNext();
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return false;
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}
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/* SPECIAL CASE
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* same as NextObjectKey()
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*/
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if (st_ == kExitingObject) {
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return false;
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}
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if (st_ == kError || st_ == kHasKey) {
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st_ = kError;
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return false;
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}
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return true;
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}
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int LottieParserImpl::GetInt()
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{
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if (st_ != kHasNumber || !v_.IsInt()) {
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st_ = kError;
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return 0;
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}
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int result = v_.GetInt();
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ParseNext();
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return result;
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}
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double LottieParserImpl::GetDouble()
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{
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if (st_ != kHasNumber) {
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st_ = kError;
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return 0.;
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}
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double result = v_.GetDouble();
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ParseNext();
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return result;
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}
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bool LottieParserImpl::GetBool()
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|
{
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if (st_ != kHasBool) {
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st_ = kError;
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return false;
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}
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bool result = v_.GetBool();
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ParseNext();
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return result;
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}
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void LottieParserImpl::GetNull()
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{
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if (st_ != kHasNull) {
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st_ = kError;
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return;
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}
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ParseNext();
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}
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const char *LottieParserImpl::GetString()
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|
{
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if (st_ != kHasString) {
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st_ = kError;
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return nullptr;
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}
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const char *result = v_.GetString();
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ParseNext();
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return result;
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}
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std::string LottieParserImpl::GetStringObject()
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{
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auto str = GetString();
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if (str) {
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return std::string(str);
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}
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return {};
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}
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void LottieParserImpl::SkipOut(int depth)
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{
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do {
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if (st_ == kEnteringArray || st_ == kEnteringObject) {
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++depth;
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} else if (st_ == kExitingArray || st_ == kExitingObject) {
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--depth;
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} else if (st_ == kError) {
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return;
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}
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ParseNext();
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} while (depth > 0);
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}
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void LottieParserImpl::SkipValue()
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{
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SkipOut(0);
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}
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void LottieParserImpl::SkipArray()
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|
{
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SkipOut(1);
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}
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|
|
void LottieParserImpl::SkipObject()
|
|
{
|
|
SkipOut(1);
|
|
}
|
|
|
|
Value *LottieParserImpl::PeekValue()
|
|
{
|
|
if (st_ >= kHasNull && st_ <= kHasKey) {
|
|
return &v_;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// returns a rapidjson::Type, or -1 for no value (at end of
|
|
// object/array)
|
|
int LottieParserImpl::PeekType() const
|
|
{
|
|
if (st_ >= kHasNull && st_ <= kHasKey) {
|
|
return v_.GetType();
|
|
}
|
|
|
|
if (st_ == kEnteringArray) {
|
|
return kArrayType;
|
|
}
|
|
|
|
if (st_ == kEnteringObject) {
|
|
return kObjectType;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
void LottieParserImpl::Skip(const char * /*key*/)
|
|
{
|
|
if (PeekType() == kArrayType) {
|
|
EnterArray();
|
|
SkipArray();
|
|
} else if (PeekType() == kObjectType) {
|
|
EnterObject();
|
|
SkipObject();
|
|
} else {
|
|
SkipValue();
|
|
}
|
|
}
|
|
|
|
model::BlendMode LottieParserImpl::getBlendMode()
|
|
{
|
|
auto mode = model::BlendMode::Normal;
|
|
|
|
switch (GetInt()) {
|
|
case 1:
|
|
mode = model::BlendMode::Multiply;
|
|
break;
|
|
case 2:
|
|
mode = model::BlendMode::Screen;
|
|
break;
|
|
case 3:
|
|
mode = model::BlendMode::OverLay;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return mode;
|
|
}
|
|
|
|
void LottieParserImpl::resolveLayerRefs()
|
|
{
|
|
for (const auto &layer : mLayersToUpdate) {
|
|
auto search = compRef->mAssets.find(layer->extra()->mPreCompRefId);
|
|
if (search != compRef->mAssets.end()) {
|
|
if (layer->mLayerType == model::Layer::Type::Image) {
|
|
layer->extra()->mAsset = search->second;
|
|
} else if (layer->mLayerType == model::Layer::Type::Precomp) {
|
|
layer->mChildren = search->second->mLayers;
|
|
layer->setStatic(layer->isStatic() &&
|
|
search->second->isStatic());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void LottieParserImpl::parseComposition()
|
|
{
|
|
EnterObject();
|
|
std::shared_ptr<model::Composition> sharedComposition =
|
|
std::make_shared<model::Composition>();
|
|
model::Composition *comp = sharedComposition.get();
|
|
compRef = comp;
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "v")) {
|
|
comp->mVersion = GetStringObject();
|
|
} else if (0 == strcmp(key, "w")) {
|
|
comp->mSize.setWidth(GetInt());
|
|
} else if (0 == strcmp(key, "h")) {
|
|
comp->mSize.setHeight(GetInt());
|
|
} else if (0 == strcmp(key, "ip")) {
|
|
comp->mStartFrame = GetDouble();
|
|
} else if (0 == strcmp(key, "op")) {
|
|
comp->mEndFrame = GetDouble();
|
|
} else if (0 == strcmp(key, "fr")) {
|
|
comp->mFrameRate = GetDouble();
|
|
} else if (0 == strcmp(key, "assets")) {
|
|
parseAssets(comp);
|
|
} else if (0 == strcmp(key, "layers")) {
|
|
parseLayers(comp);
|
|
} else if (0 == strcmp(key, "markers")) {
|
|
parseMarkers();
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vWarning << "Composition Attribute Skipped : " << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
|
|
if (comp->mVersion.empty() || !comp->mRootLayer) {
|
|
// don't have a valid bodymovin header
|
|
return;
|
|
}
|
|
if (comp->mStartFrame > comp->mEndFrame) {
|
|
// reveresed animation? missing data?
|
|
return;
|
|
}
|
|
if (!IsValid()) {
|
|
return;
|
|
}
|
|
|
|
resolveLayerRefs();
|
|
comp->setStatic(comp->mRootLayer->isStatic());
|
|
comp->mRootLayer->mInFrame = comp->mStartFrame;
|
|
comp->mRootLayer->mOutFrame = comp->mEndFrame;
|
|
|
|
mComposition = sharedComposition;
|
|
}
|
|
|
|
void LottieParserImpl::parseMarker()
|
|
{
|
|
EnterObject();
|
|
std::string comment;
|
|
int timeframe{0};
|
|
int duration{0};
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "cm")) {
|
|
comment = GetStringObject();
|
|
} else if (0 == strcmp(key, "tm")) {
|
|
timeframe = GetDouble();
|
|
} else if (0 == strcmp(key, "dr")) {
|
|
duration = GetDouble();
|
|
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vWarning << "Marker Attribute Skipped : " << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
compRef->mMarkers.emplace_back(std::move(comment), timeframe,
|
|
timeframe + duration);
|
|
}
|
|
|
|
void LottieParserImpl::parseMarkers()
|
|
{
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
parseMarker();
|
|
}
|
|
// update the precomp layers with the actual layer object
|
|
}
|
|
|
|
void LottieParserImpl::parseAssets(model::Composition *composition)
|
|
{
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
auto asset = parseAsset();
|
|
composition->mAssets[asset->mRefId] = asset;
|
|
}
|
|
// update the precomp layers with the actual layer object
|
|
}
|
|
|
|
static constexpr const unsigned char B64index[256] = {
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 62, 63, 62, 62, 63, 52, 53, 54, 55, 56, 57,
|
|
58, 59, 60, 61, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6,
|
|
7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
|
|
25, 0, 0, 0, 0, 63, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
|
|
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51};
|
|
|
|
std::string b64decode(const char *data, const size_t len)
|
|
{
|
|
auto p = reinterpret_cast<const unsigned char *>(data);
|
|
int pad = len > 0 && (len % 4 || p[len - 1] == '=');
|
|
const size_t L = ((len + 3) / 4 - pad) * 4;
|
|
std::string str(L / 4 * 3 + pad, '\0');
|
|
|
|
for (size_t i = 0, j = 0; i < L; i += 4) {
|
|
int n = B64index[p[i]] << 18 | B64index[p[i + 1]] << 12 |
|
|
B64index[p[i + 2]] << 6 | B64index[p[i + 3]];
|
|
str[j++] = n >> 16;
|
|
str[j++] = n >> 8 & 0xFF;
|
|
str[j++] = n & 0xFF;
|
|
}
|
|
if (pad) {
|
|
int n = B64index[p[L]] << 18 | B64index[p[L + 1]] << 12;
|
|
str[str.size() - 1] = n >> 16;
|
|
|
|
if (len > L + 2 && p[L + 2] != '=') {
|
|
n |= B64index[p[L + 2]] << 6;
|
|
str.push_back(n >> 8 & 0xFF);
|
|
}
|
|
}
|
|
return str;
|
|
}
|
|
|
|
static std::string convertFromBase64(const std::string &str)
|
|
{
|
|
// usual header look like "data:image/png;base64,"
|
|
// so need to skip till ','.
|
|
size_t startIndex = str.find(",", 0);
|
|
startIndex += 1; // skip ","
|
|
size_t length = str.length() - startIndex;
|
|
|
|
const char *b64Data = str.c_str() + startIndex;
|
|
|
|
return b64decode(b64Data, length);
|
|
}
|
|
|
|
/*
|
|
* std::to_string() function is missing in VS2017
|
|
* so this is workaround for windows build
|
|
*/
|
|
#include <sstream>
|
|
template <class T>
|
|
static std::string toString(const T &value)
|
|
{
|
|
std::ostringstream os;
|
|
os << value;
|
|
return os.str();
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/layers/shape.json
|
|
*
|
|
*/
|
|
model::Asset *LottieParserImpl::parseAsset()
|
|
{
|
|
auto asset = allocator().make<model::Asset>();
|
|
std::string filename;
|
|
std::string relativePath;
|
|
bool embededResource = false;
|
|
EnterObject();
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "w")) {
|
|
asset->mWidth = GetInt();
|
|
} else if (0 == strcmp(key, "h")) {
|
|
asset->mHeight = GetInt();
|
|
} else if (0 == strcmp(key, "p")) { /* image name */
|
|
asset->mAssetType = model::Asset::Type::Image;
|
|
filename = GetStringObject();
|
|
} else if (0 == strcmp(key, "u")) { /* relative image path */
|
|
relativePath = GetStringObject();
|
|
} else if (0 == strcmp(key, "e")) { /* relative image path */
|
|
embededResource = GetInt();
|
|
} else if (0 == strcmp(key, "id")) { /* reference id*/
|
|
if (PeekType() == kStringType) {
|
|
asset->mRefId = GetStringObject();
|
|
} else {
|
|
asset->mRefId = toString(GetInt());
|
|
}
|
|
} else if (0 == strcmp(key, "layers")) {
|
|
asset->mAssetType = model::Asset::Type::Precomp;
|
|
EnterArray();
|
|
bool staticFlag = true;
|
|
while (NextArrayValue()) {
|
|
auto layer = parseLayer();
|
|
if (layer) {
|
|
staticFlag = staticFlag && layer->isStatic();
|
|
asset->mLayers.push_back(layer);
|
|
}
|
|
}
|
|
asset->setStatic(staticFlag);
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vWarning << "Asset Attribute Skipped : " << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
|
|
if (asset->mAssetType == model::Asset::Type::Image) {
|
|
if (embededResource) {
|
|
// embeder resource should start with "data:"
|
|
if (filename.compare(0, 5, "data:") == 0) {
|
|
asset->loadImageData(convertFromBase64(filename));
|
|
}
|
|
} else {
|
|
asset->loadImagePath(mDirPath + relativePath + filename);
|
|
}
|
|
}
|
|
|
|
return asset;
|
|
}
|
|
|
|
void LottieParserImpl::parseLayers(model::Composition *comp)
|
|
{
|
|
comp->mRootLayer = allocator().make<model::Layer>();
|
|
comp->mRootLayer->mLayerType = model::Layer::Type::Precomp;
|
|
comp->mRootLayer->setName("__");
|
|
bool staticFlag = true;
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
auto layer = parseLayer();
|
|
if (layer) {
|
|
staticFlag = staticFlag && layer->isStatic();
|
|
comp->mRootLayer->mChildren.push_back(layer);
|
|
}
|
|
}
|
|
comp->mRootLayer->setStatic(staticFlag);
|
|
}
|
|
|
|
model::Color LottieParserImpl::toColor(const char *str)
|
|
{
|
|
if (!str) return {};
|
|
|
|
model::Color color;
|
|
auto len = strlen(str);
|
|
|
|
// some resource has empty color string
|
|
// return a default color for those cases.
|
|
if (len != 7 || str[0] != '#') return color;
|
|
|
|
char tmp[3] = {'\0', '\0', '\0'};
|
|
tmp[0] = str[1];
|
|
tmp[1] = str[2];
|
|
color.r = std::strtol(tmp, nullptr, 16) / 255.0f;
|
|
|
|
tmp[0] = str[3];
|
|
tmp[1] = str[4];
|
|
color.g = std::strtol(tmp, nullptr, 16) / 255.0f;
|
|
|
|
tmp[0] = str[5];
|
|
tmp[1] = str[6];
|
|
color.b = std::strtol(tmp, nullptr, 16) / 255.0f;
|
|
|
|
return color;
|
|
}
|
|
|
|
model::MatteType LottieParserImpl::getMatteType()
|
|
{
|
|
switch (GetInt()) {
|
|
case 1:
|
|
return model::MatteType::Alpha;
|
|
break;
|
|
case 2:
|
|
return model::MatteType::AlphaInv;
|
|
break;
|
|
case 3:
|
|
return model::MatteType::Luma;
|
|
break;
|
|
case 4:
|
|
return model::MatteType::LumaInv;
|
|
break;
|
|
default:
|
|
return model::MatteType::None;
|
|
break;
|
|
}
|
|
}
|
|
|
|
model::Layer::Type LottieParserImpl::getLayerType()
|
|
{
|
|
switch (GetInt()) {
|
|
case 0:
|
|
return model::Layer::Type::Precomp;
|
|
break;
|
|
case 1:
|
|
return model::Layer::Type::Solid;
|
|
break;
|
|
case 2:
|
|
return model::Layer::Type::Image;
|
|
break;
|
|
case 3:
|
|
return model::Layer::Type::Null;
|
|
break;
|
|
case 4:
|
|
return model::Layer::Type::Shape;
|
|
break;
|
|
case 5:
|
|
return model::Layer::Type::Text;
|
|
break;
|
|
default:
|
|
return model::Layer::Type::Null;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/layers/shape.json
|
|
*
|
|
*/
|
|
model::Layer *LottieParserImpl::parseLayer()
|
|
{
|
|
model::Layer *layer = allocator().make<model::Layer>();
|
|
curLayerRef = layer;
|
|
bool ddd = true;
|
|
EnterObject();
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "ty")) { /* Type of layer*/
|
|
layer->mLayerType = getLayerType();
|
|
} else if (0 == strcmp(key, "nm")) { /*Layer name*/
|
|
layer->setName(GetString());
|
|
} else if (0 == strcmp(key, "ind")) { /*Layer index in AE. Used for
|
|
parenting and expressions.*/
|
|
layer->mId = GetInt();
|
|
} else if (0 == strcmp(key, "ddd")) { /*3d layer */
|
|
ddd = GetInt();
|
|
} else if (0 ==
|
|
strcmp(key,
|
|
"parent")) { /*Layer Parent. Uses "ind" of parent.*/
|
|
layer->mParentId = GetInt();
|
|
} else if (0 == strcmp(key, "refId")) { /*preComp Layer reference id*/
|
|
layer->extra()->mPreCompRefId = GetStringObject();
|
|
layer->mHasGradient = true;
|
|
mLayersToUpdate.push_back(layer);
|
|
} else if (0 == strcmp(key, "sr")) { // "Layer Time Stretching"
|
|
layer->mTimeStreatch = GetDouble();
|
|
} else if (0 == strcmp(key, "tm")) { // time remapping
|
|
parseProperty(layer->extra()->mTimeRemap);
|
|
} else if (0 == strcmp(key, "ip")) {
|
|
layer->mInFrame = std::lround(GetDouble());
|
|
} else if (0 == strcmp(key, "op")) {
|
|
layer->mOutFrame = std::lround(GetDouble());
|
|
} else if (0 == strcmp(key, "st")) {
|
|
layer->mStartFrame = GetDouble();
|
|
} else if (0 == strcmp(key, "bm")) {
|
|
layer->mBlendMode = getBlendMode();
|
|
} else if (0 == strcmp(key, "ks")) {
|
|
EnterObject();
|
|
layer->mTransform = parseTransformObject(ddd);
|
|
} else if (0 == strcmp(key, "shapes")) {
|
|
parseShapesAttr(layer);
|
|
} else if (0 == strcmp(key, "w")) {
|
|
layer->mLayerSize.setWidth(GetInt());
|
|
} else if (0 == strcmp(key, "h")) {
|
|
layer->mLayerSize.setHeight(GetInt());
|
|
} else if (0 == strcmp(key, "sw")) {
|
|
layer->mLayerSize.setWidth(GetInt());
|
|
} else if (0 == strcmp(key, "sh")) {
|
|
layer->mLayerSize.setHeight(GetInt());
|
|
} else if (0 == strcmp(key, "sc")) {
|
|
layer->extra()->mSolidColor = toColor(GetString());
|
|
} else if (0 == strcmp(key, "tt")) {
|
|
layer->mMatteType = getMatteType();
|
|
} else if (0 == strcmp(key, "hasMask")) {
|
|
layer->mHasMask = GetBool();
|
|
} else if (0 == strcmp(key, "masksProperties")) {
|
|
parseMaskProperty(layer);
|
|
} else if (0 == strcmp(key, "ao")) {
|
|
layer->mAutoOrient = GetInt();
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
layer->setHidden(GetBool());
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vWarning << "Layer Attribute Skipped : " << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
|
|
if (!layer->mTransform) {
|
|
// not a valid layer
|
|
return nullptr;
|
|
}
|
|
|
|
// make sure layer data is not corrupted.
|
|
if (layer->hasParent() && (layer->id() == layer->parentId()))
|
|
return nullptr;
|
|
|
|
if (layer->mExtra) layer->mExtra->mCompRef = compRef;
|
|
|
|
if (layer->hidden()) {
|
|
// if layer is hidden, only data that is usefull is its
|
|
// transform matrix(when it is a parent of some other layer)
|
|
// so force it to be a Null Layer and release all resource.
|
|
layer->setStatic(layer->mTransform->isStatic());
|
|
layer->mLayerType = model::Layer::Type::Null;
|
|
layer->mChildren = {};
|
|
return layer;
|
|
}
|
|
|
|
// update the static property of layer
|
|
bool staticFlag = true;
|
|
for (const auto &child : layer->mChildren) {
|
|
staticFlag &= child->isStatic();
|
|
}
|
|
|
|
if (layer->hasMask() && layer->mExtra) {
|
|
for (const auto &mask : layer->mExtra->mMasks) {
|
|
staticFlag &= mask->isStatic();
|
|
}
|
|
}
|
|
|
|
layer->setStatic(staticFlag && layer->mTransform->isStatic());
|
|
|
|
return layer;
|
|
}
|
|
|
|
void LottieParserImpl::parseMaskProperty(model::Layer *layer)
|
|
{
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
layer->extra()->mMasks.push_back(parseMaskObject());
|
|
}
|
|
}
|
|
|
|
model::Mask *LottieParserImpl::parseMaskObject()
|
|
{
|
|
auto obj = allocator().make<model::Mask>();
|
|
|
|
EnterObject();
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "inv")) {
|
|
obj->mInv = GetBool();
|
|
} else if (0 == strcmp(key, "mode")) {
|
|
const char *str = GetString();
|
|
if (!str) {
|
|
obj->mMode = model::Mask::Mode::None;
|
|
continue;
|
|
}
|
|
switch (str[0]) {
|
|
case 'n':
|
|
obj->mMode = model::Mask::Mode::None;
|
|
break;
|
|
case 'a':
|
|
obj->mMode = model::Mask::Mode::Add;
|
|
break;
|
|
case 's':
|
|
obj->mMode = model::Mask::Mode::Substarct;
|
|
break;
|
|
case 'i':
|
|
obj->mMode = model::Mask::Mode::Intersect;
|
|
break;
|
|
case 'f':
|
|
obj->mMode = model::Mask::Mode::Difference;
|
|
break;
|
|
default:
|
|
obj->mMode = model::Mask::Mode::None;
|
|
break;
|
|
}
|
|
} else if (0 == strcmp(key, "pt")) {
|
|
parseShapeProperty(obj->mShape);
|
|
} else if (0 == strcmp(key, "o")) {
|
|
parseProperty(obj->mOpacity);
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
obj->mIsStatic = obj->mShape.isStatic() && obj->mOpacity.isStatic();
|
|
return obj;
|
|
}
|
|
|
|
void LottieParserImpl::parseShapesAttr(model::Layer *layer)
|
|
{
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
parseObject(layer);
|
|
}
|
|
}
|
|
|
|
model::Object *LottieParserImpl::parseObjectTypeAttr()
|
|
{
|
|
const char *type = GetString();
|
|
if (0 == strcmp(type, "gr")) {
|
|
return parseGroupObject();
|
|
} else if (0 == strcmp(type, "rc")) {
|
|
return parseRectObject();
|
|
} else if (0 == strcmp(type, "rd")) {
|
|
curLayerRef->mHasRoundedCorner = true;
|
|
return parseRoundedCorner();
|
|
} else if (0 == strcmp(type, "el")) {
|
|
return parseEllipseObject();
|
|
} else if (0 == strcmp(type, "tr")) {
|
|
return parseTransformObject();
|
|
} else if (0 == strcmp(type, "fl")) {
|
|
return parseFillObject();
|
|
} else if (0 == strcmp(type, "st")) {
|
|
return parseStrokeObject();
|
|
} else if (0 == strcmp(type, "gf")) {
|
|
curLayerRef->mHasGradient = true;
|
|
return parseGFillObject();
|
|
} else if (0 == strcmp(type, "gs")) {
|
|
curLayerRef->mHasGradient = true;
|
|
return parseGStrokeObject();
|
|
} else if (0 == strcmp(type, "sh")) {
|
|
return parseShapeObject();
|
|
} else if (0 == strcmp(type, "sr")) {
|
|
return parsePolystarObject();
|
|
} else if (0 == strcmp(type, "tm")) {
|
|
curLayerRef->mHasPathOperator = true;
|
|
return parseTrimObject();
|
|
} else if (0 == strcmp(type, "rp")) {
|
|
curLayerRef->mHasRepeater = true;
|
|
return parseReapeaterObject();
|
|
} else if (0 == strcmp(type, "mm")) {
|
|
vWarning << "Merge Path is not supported yet";
|
|
return nullptr;
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vDebug << "The Object Type not yet handled = " << type;
|
|
#endif
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
void LottieParserImpl::parseObject(model::Group *parent)
|
|
{
|
|
EnterObject();
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "ty")) {
|
|
auto child = parseObjectTypeAttr();
|
|
if (child && !child->hidden()) {
|
|
if (child->type() == model::Object::Type::RoundedCorner) {
|
|
updateRoundedCorner(parent, static_cast<model::RoundedCorner *>(child));
|
|
}
|
|
parent->mChildren.push_back(child);
|
|
}
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
}
|
|
|
|
void LottieParserImpl::updateRoundedCorner(model::Group *group, model::RoundedCorner *rc)
|
|
{
|
|
for(auto &e : group->mChildren)
|
|
{
|
|
if (e->type() == model::Object::Type::Rect) {
|
|
static_cast<model::Rect *>(e)->mRoundedCorner = rc;
|
|
if (!rc->isStatic()) {
|
|
e->setStatic(false);
|
|
group->setStatic(false);
|
|
//@TODO need to propagate.
|
|
}
|
|
} else if ( e->type() == model::Object::Type::Group) {
|
|
updateRoundedCorner(static_cast<model::Group *>(e), rc);
|
|
}
|
|
}
|
|
}
|
|
|
|
model::Object *LottieParserImpl::parseGroupObject()
|
|
{
|
|
auto group = allocator().make<model::Group>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
group->setName(GetString());
|
|
} else if (0 == strcmp(key, "it")) {
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
parseObject(group);
|
|
}
|
|
if (!group->mChildren.empty()
|
|
&& group->mChildren.back()->type()
|
|
== model::Object::Type::Transform) {
|
|
group->mTransform =
|
|
static_cast<model::Transform *>(group->mChildren.back());
|
|
group->mChildren.pop_back();
|
|
}
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
bool staticFlag = true;
|
|
for (const auto &child : group->mChildren) {
|
|
staticFlag &= child->isStatic();
|
|
}
|
|
|
|
if (group->mTransform) {
|
|
group->setStatic(staticFlag && group->mTransform->isStatic());
|
|
}
|
|
|
|
return group;
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/rect.json
|
|
*/
|
|
model::Rect *LottieParserImpl::parseRectObject()
|
|
{
|
|
auto obj = allocator().make<model::Rect>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "p")) {
|
|
parseProperty(obj->mPos);
|
|
} else if (0 == strcmp(key, "s")) {
|
|
parseProperty(obj->mSize);
|
|
} else if (0 == strcmp(key, "r")) {
|
|
parseProperty(obj->mRound);
|
|
} else if (0 == strcmp(key, "d")) {
|
|
obj->mDirection = GetInt();
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
obj->setHidden(GetBool());
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
obj->setStatic(obj->mPos.isStatic() && obj->mSize.isStatic() &&
|
|
obj->mRound.isStatic());
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/rect.json
|
|
*/
|
|
model::RoundedCorner *LottieParserImpl::parseRoundedCorner()
|
|
{
|
|
auto obj = allocator().make<model::RoundedCorner>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "r")) {
|
|
parseProperty(obj->mRadius);
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
obj->setHidden(GetBool());
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
obj->setStatic(obj->mRadius.isStatic());
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/ellipse.json
|
|
*/
|
|
model::Ellipse *LottieParserImpl::parseEllipseObject()
|
|
{
|
|
auto obj = allocator().make<model::Ellipse>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "p")) {
|
|
parseProperty(obj->mPos);
|
|
} else if (0 == strcmp(key, "s")) {
|
|
parseProperty(obj->mSize);
|
|
} else if (0 == strcmp(key, "d")) {
|
|
obj->mDirection = GetInt();
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
obj->setHidden(GetBool());
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
obj->setStatic(obj->mPos.isStatic() && obj->mSize.isStatic());
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/shape.json
|
|
*/
|
|
model::Path *LottieParserImpl::parseShapeObject()
|
|
{
|
|
auto obj = allocator().make<model::Path>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "ks")) {
|
|
parseShapeProperty(obj->mShape);
|
|
} else if (0 == strcmp(key, "d")) {
|
|
obj->mDirection = GetInt();
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
obj->setHidden(GetBool());
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vDebug << "Shape property ignored :" << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
obj->setStatic(obj->mShape.isStatic());
|
|
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/star.json
|
|
*/
|
|
model::Polystar *LottieParserImpl::parsePolystarObject()
|
|
{
|
|
auto obj = allocator().make<model::Polystar>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "p")) {
|
|
parseProperty(obj->mPos);
|
|
} else if (0 == strcmp(key, "pt")) {
|
|
parseProperty(obj->mPointCount);
|
|
} else if (0 == strcmp(key, "ir")) {
|
|
parseProperty(obj->mInnerRadius);
|
|
} else if (0 == strcmp(key, "is")) {
|
|
parseProperty(obj->mInnerRoundness);
|
|
} else if (0 == strcmp(key, "or")) {
|
|
parseProperty(obj->mOuterRadius);
|
|
} else if (0 == strcmp(key, "os")) {
|
|
parseProperty(obj->mOuterRoundness);
|
|
} else if (0 == strcmp(key, "r")) {
|
|
parseProperty(obj->mRotation);
|
|
} else if (0 == strcmp(key, "sy")) {
|
|
int starType = GetInt();
|
|
if (starType == 1) obj->mPolyType = model::Polystar::PolyType::Star;
|
|
if (starType == 2)
|
|
obj->mPolyType = model::Polystar::PolyType::Polygon;
|
|
} else if (0 == strcmp(key, "d")) {
|
|
obj->mDirection = GetInt();
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
obj->setHidden(GetBool());
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vDebug << "Polystar property ignored :" << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
obj->setStatic(
|
|
obj->mPos.isStatic() && obj->mPointCount.isStatic() &&
|
|
obj->mInnerRadius.isStatic() && obj->mInnerRoundness.isStatic() &&
|
|
obj->mOuterRadius.isStatic() && obj->mOuterRoundness.isStatic() &&
|
|
obj->mRotation.isStatic());
|
|
|
|
return obj;
|
|
}
|
|
|
|
model::Trim::TrimType LottieParserImpl::getTrimType()
|
|
{
|
|
switch (GetInt()) {
|
|
case 1:
|
|
return model::Trim::TrimType::Simultaneously;
|
|
break;
|
|
case 2:
|
|
return model::Trim::TrimType::Individually;
|
|
break;
|
|
default:
|
|
Error();
|
|
return model::Trim::TrimType::Simultaneously;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/trim.json
|
|
*/
|
|
model::Trim *LottieParserImpl::parseTrimObject()
|
|
{
|
|
auto obj = allocator().make<model::Trim>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "s")) {
|
|
parseProperty(obj->mStart);
|
|
} else if (0 == strcmp(key, "e")) {
|
|
parseProperty(obj->mEnd);
|
|
} else if (0 == strcmp(key, "o")) {
|
|
parseProperty(obj->mOffset);
|
|
} else if (0 == strcmp(key, "m")) {
|
|
obj->mTrimType = getTrimType();
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
obj->setHidden(GetBool());
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vDebug << "Trim property ignored :" << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
obj->setStatic(obj->mStart.isStatic() && obj->mEnd.isStatic() &&
|
|
obj->mOffset.isStatic());
|
|
return obj;
|
|
}
|
|
|
|
void LottieParserImpl::getValue(model::Repeater::Transform &obj)
|
|
{
|
|
EnterObject();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "a")) {
|
|
parseProperty(obj.mAnchor);
|
|
} else if (0 == strcmp(key, "p")) {
|
|
parseProperty(obj.mPosition);
|
|
} else if (0 == strcmp(key, "r")) {
|
|
parseProperty(obj.mRotation);
|
|
} else if (0 == strcmp(key, "s")) {
|
|
parseProperty(obj.mScale);
|
|
} else if (0 == strcmp(key, "so")) {
|
|
parseProperty(obj.mStartOpacity);
|
|
} else if (0 == strcmp(key, "eo")) {
|
|
parseProperty(obj.mEndOpacity);
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
}
|
|
|
|
model::Repeater *LottieParserImpl::parseReapeaterObject()
|
|
{
|
|
auto obj = allocator().make<model::Repeater>();
|
|
|
|
obj->setContent(allocator().make<model::Group>());
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "c")) {
|
|
parseProperty(obj->mCopies);
|
|
float maxCopy = 0.0;
|
|
if (!obj->mCopies.isStatic()) {
|
|
for (auto &keyFrame : obj->mCopies.animation().frames_) {
|
|
if (maxCopy < keyFrame.value_.start_)
|
|
maxCopy = keyFrame.value_.start_;
|
|
if (maxCopy < keyFrame.value_.end_)
|
|
maxCopy = keyFrame.value_.end_;
|
|
}
|
|
} else {
|
|
maxCopy = obj->mCopies.value();
|
|
}
|
|
obj->mMaxCopies = maxCopy;
|
|
} else if (0 == strcmp(key, "o")) {
|
|
parseProperty(obj->mOffset);
|
|
} else if (0 == strcmp(key, "tr")) {
|
|
getValue(obj->mTransform);
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
obj->setHidden(GetBool());
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vDebug << "Repeater property ignored :" << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
obj->setStatic(obj->mCopies.isStatic() && obj->mOffset.isStatic() &&
|
|
obj->mTransform.isStatic());
|
|
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/transform.json
|
|
*/
|
|
model::Transform *LottieParserImpl::parseTransformObject(bool ddd)
|
|
{
|
|
auto objT = allocator().make<model::Transform>();
|
|
|
|
auto obj = allocator().make<model::Transform::Data>();
|
|
if (ddd) {
|
|
obj->createExtraData();
|
|
obj->mExtra->m3DData = true;
|
|
}
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
objT->setName(GetString());
|
|
} else if (0 == strcmp(key, "a")) {
|
|
parseProperty(obj->mAnchor);
|
|
} else if (0 == strcmp(key, "p")) {
|
|
EnterObject();
|
|
bool separate = false;
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "k")) {
|
|
parsePropertyHelper(obj->mPosition);
|
|
} else if (0 == strcmp(key, "s")) {
|
|
obj->createExtraData();
|
|
obj->mExtra->mSeparate = GetBool();
|
|
separate = true;
|
|
} else if (separate && (0 == strcmp(key, "x"))) {
|
|
parseProperty(obj->mExtra->mSeparateX);
|
|
} else if (separate && (0 == strcmp(key, "y"))) {
|
|
parseProperty(obj->mExtra->mSeparateY);
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
} else if (0 == strcmp(key, "r")) {
|
|
parseProperty(obj->mRotation);
|
|
} else if (0 == strcmp(key, "s")) {
|
|
parseProperty(obj->mScale);
|
|
} else if (0 == strcmp(key, "o")) {
|
|
parseProperty(obj->mOpacity);
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
objT->setHidden(GetBool());
|
|
} else if (0 == strcmp(key, "rx")) {
|
|
if (!obj->mExtra) return nullptr;
|
|
parseProperty(obj->mExtra->m3DRx);
|
|
} else if (0 == strcmp(key, "ry")) {
|
|
if (!obj->mExtra) return nullptr;
|
|
parseProperty(obj->mExtra->m3DRy);
|
|
} else if (0 == strcmp(key, "rz")) {
|
|
if (!obj->mExtra) return nullptr;
|
|
parseProperty(obj->mExtra->m3DRz);
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
bool isStatic = obj->mAnchor.isStatic() && obj->mPosition.isStatic() &&
|
|
obj->mRotation.isStatic() && obj->mScale.isStatic() &&
|
|
obj->mOpacity.isStatic();
|
|
if (obj->mExtra) {
|
|
isStatic = isStatic && obj->mExtra->m3DRx.isStatic() &&
|
|
obj->mExtra->m3DRy.isStatic() &&
|
|
obj->mExtra->m3DRz.isStatic() &&
|
|
obj->mExtra->mSeparateX.isStatic() &&
|
|
obj->mExtra->mSeparateY.isStatic();
|
|
}
|
|
|
|
objT->set(obj, isStatic);
|
|
|
|
return objT;
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/fill.json
|
|
*/
|
|
model::Fill *LottieParserImpl::parseFillObject()
|
|
{
|
|
auto obj = allocator().make<model::Fill>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "c")) {
|
|
parseProperty(obj->mColor);
|
|
} else if (0 == strcmp(key, "o")) {
|
|
parseProperty(obj->mOpacity);
|
|
} else if (0 == strcmp(key, "fillEnabled")) {
|
|
obj->mEnabled = GetBool();
|
|
} else if (0 == strcmp(key, "r")) {
|
|
obj->mFillRule = getFillRule();
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
obj->setHidden(GetBool());
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vWarning << "Fill property skipped = " << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
obj->setStatic(obj->mColor.isStatic() && obj->mOpacity.isStatic());
|
|
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/helpers/lineCap.json
|
|
*/
|
|
CapStyle LottieParserImpl::getLineCap()
|
|
{
|
|
switch (GetInt()) {
|
|
case 1:
|
|
return CapStyle::Flat;
|
|
break;
|
|
case 2:
|
|
return CapStyle::Round;
|
|
break;
|
|
default:
|
|
return CapStyle::Square;
|
|
break;
|
|
}
|
|
}
|
|
|
|
FillRule LottieParserImpl::getFillRule()
|
|
{
|
|
switch (GetInt()) {
|
|
case 1:
|
|
return FillRule::Winding;
|
|
break;
|
|
case 2:
|
|
return FillRule::EvenOdd;
|
|
break;
|
|
default:
|
|
return FillRule::Winding;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/helpers/lineJoin.json
|
|
*/
|
|
JoinStyle LottieParserImpl::getLineJoin()
|
|
{
|
|
switch (GetInt()) {
|
|
case 1:
|
|
return JoinStyle::Miter;
|
|
break;
|
|
case 2:
|
|
return JoinStyle::Round;
|
|
break;
|
|
default:
|
|
return JoinStyle::Bevel;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/stroke.json
|
|
*/
|
|
model::Stroke *LottieParserImpl::parseStrokeObject()
|
|
{
|
|
auto obj = allocator().make<model::Stroke>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "c")) {
|
|
parseProperty(obj->mColor);
|
|
} else if (0 == strcmp(key, "o")) {
|
|
parseProperty(obj->mOpacity);
|
|
} else if (0 == strcmp(key, "w")) {
|
|
parseProperty(obj->mWidth);
|
|
} else if (0 == strcmp(key, "fillEnabled")) {
|
|
obj->mEnabled = GetBool();
|
|
} else if (0 == strcmp(key, "lc")) {
|
|
obj->mCapStyle = getLineCap();
|
|
} else if (0 == strcmp(key, "lj")) {
|
|
obj->mJoinStyle = getLineJoin();
|
|
} else if (0 == strcmp(key, "ml")) {
|
|
obj->mMiterLimit = GetDouble();
|
|
} else if (0 == strcmp(key, "d")) {
|
|
parseDashProperty(obj->mDash);
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
obj->setHidden(GetBool());
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vWarning << "Stroke property skipped = " << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
obj->setStatic(obj->mColor.isStatic() && obj->mOpacity.isStatic() &&
|
|
obj->mWidth.isStatic() && obj->mDash.isStatic());
|
|
return obj;
|
|
}
|
|
|
|
void LottieParserImpl::parseGradientProperty(model::Gradient *obj,
|
|
const char * key)
|
|
{
|
|
if (0 == strcmp(key, "t")) {
|
|
obj->mGradientType = GetInt();
|
|
} else if (0 == strcmp(key, "o")) {
|
|
parseProperty(obj->mOpacity);
|
|
} else if (0 == strcmp(key, "s")) {
|
|
parseProperty(obj->mStartPoint);
|
|
} else if (0 == strcmp(key, "e")) {
|
|
parseProperty(obj->mEndPoint);
|
|
} else if (0 == strcmp(key, "h")) {
|
|
parseProperty(obj->mHighlightLength);
|
|
} else if (0 == strcmp(key, "a")) {
|
|
parseProperty(obj->mHighlightAngle);
|
|
} else if (0 == strcmp(key, "g")) {
|
|
EnterObject();
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "k")) {
|
|
parseProperty(obj->mGradient);
|
|
} else if (0 == strcmp(key, "p")) {
|
|
obj->mColorPoints = GetInt();
|
|
} else {
|
|
Skip(nullptr);
|
|
}
|
|
}
|
|
} else if (0 == strcmp(key, "hd")) {
|
|
obj->setHidden(GetBool());
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vWarning << "Gradient property skipped = " << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
obj->setStatic(
|
|
obj->mOpacity.isStatic() && obj->mStartPoint.isStatic() &&
|
|
obj->mEndPoint.isStatic() && obj->mHighlightAngle.isStatic() &&
|
|
obj->mHighlightLength.isStatic() && obj->mGradient.isStatic());
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/gfill.json
|
|
*/
|
|
model::GradientFill *LottieParserImpl::parseGFillObject()
|
|
{
|
|
auto obj = allocator().make<model::GradientFill>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "r")) {
|
|
obj->mFillRule = getFillRule();
|
|
} else {
|
|
parseGradientProperty(obj, key);
|
|
}
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
void LottieParserImpl::parseDashProperty(model::Dash &dash)
|
|
{
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
EnterObject();
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "v")) {
|
|
dash.mData.emplace_back();
|
|
parseProperty(dash.mData.back());
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/shapes/gstroke.json
|
|
*/
|
|
model::GradientStroke *LottieParserImpl::parseGStrokeObject()
|
|
{
|
|
auto obj = allocator().make<model::GradientStroke>();
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "nm")) {
|
|
obj->setName(GetString());
|
|
} else if (0 == strcmp(key, "w")) {
|
|
parseProperty(obj->mWidth);
|
|
} else if (0 == strcmp(key, "lc")) {
|
|
obj->mCapStyle = getLineCap();
|
|
} else if (0 == strcmp(key, "lj")) {
|
|
obj->mJoinStyle = getLineJoin();
|
|
} else if (0 == strcmp(key, "ml")) {
|
|
obj->mMiterLimit = GetDouble();
|
|
} else if (0 == strcmp(key, "d")) {
|
|
parseDashProperty(obj->mDash);
|
|
} else {
|
|
parseGradientProperty(obj, key);
|
|
}
|
|
}
|
|
|
|
obj->setStatic(obj->isStatic() && obj->mWidth.isStatic() &&
|
|
obj->mDash.isStatic());
|
|
return obj;
|
|
}
|
|
|
|
void LottieParserImpl::getValue(std::vector<VPointF> &v)
|
|
{
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
EnterArray();
|
|
VPointF pt;
|
|
getValue(pt);
|
|
v.push_back(pt);
|
|
}
|
|
}
|
|
|
|
void LottieParserImpl::getValue(VPointF &pt)
|
|
{
|
|
float val[4] = {0.f};
|
|
int i = 0;
|
|
|
|
if (PeekType() == kArrayType) EnterArray();
|
|
|
|
while (NextArrayValue()) {
|
|
const auto value = GetDouble();
|
|
if (i < 4) {
|
|
val[i++] = value;
|
|
}
|
|
}
|
|
pt.setX(val[0]);
|
|
pt.setY(val[1]);
|
|
}
|
|
|
|
void LottieParserImpl::getValue(float &val)
|
|
{
|
|
if (PeekType() == kArrayType) {
|
|
EnterArray();
|
|
if (NextArrayValue()) val = GetDouble();
|
|
// discard rest
|
|
while (NextArrayValue()) {
|
|
GetDouble();
|
|
}
|
|
} else if (PeekType() == kNumberType) {
|
|
val = GetDouble();
|
|
} else {
|
|
Error();
|
|
}
|
|
}
|
|
|
|
void LottieParserImpl::getValue(model::Color &color)
|
|
{
|
|
float val[4] = {0.f};
|
|
int i = 0;
|
|
if (PeekType() == kArrayType) EnterArray();
|
|
|
|
while (NextArrayValue()) {
|
|
const auto value = GetDouble();
|
|
if (i < 4) {
|
|
val[i++] = value;
|
|
}
|
|
}
|
|
|
|
if (mColorFilter) mColorFilter(val[0], val[1], val[2]);
|
|
|
|
color.r = val[0];
|
|
color.g = val[1];
|
|
color.b = val[2];
|
|
}
|
|
|
|
void LottieParserImpl::getValue(model::Gradient::Data &grad)
|
|
{
|
|
if (PeekType() == kArrayType) EnterArray();
|
|
|
|
while (NextArrayValue()) {
|
|
grad.mGradient.push_back(GetDouble());
|
|
}
|
|
}
|
|
|
|
void LottieParserImpl::getValue(int &val)
|
|
{
|
|
if (PeekType() == kArrayType) {
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
val = GetInt();
|
|
}
|
|
} else if (PeekType() == kNumberType) {
|
|
val = GetInt();
|
|
} else {
|
|
Error();
|
|
}
|
|
}
|
|
|
|
void LottieParserImpl::parsePathInfo()
|
|
{
|
|
mPathInfo.reset();
|
|
|
|
/*
|
|
* The shape object could be wrapped by a array
|
|
* if its part of the keyframe object
|
|
*/
|
|
bool arrayWrapper = (PeekType() == kArrayType);
|
|
if (arrayWrapper) EnterArray();
|
|
|
|
EnterObject();
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "i")) {
|
|
getValue(mPathInfo.mInPoint);
|
|
} else if (0 == strcmp(key, "o")) {
|
|
getValue(mPathInfo.mOutPoint);
|
|
} else if (0 == strcmp(key, "v")) {
|
|
getValue(mPathInfo.mVertices);
|
|
} else if (0 == strcmp(key, "c")) {
|
|
mPathInfo.mClosed = GetBool();
|
|
} else {
|
|
Error();
|
|
Skip(nullptr);
|
|
}
|
|
}
|
|
// exit properly from the array
|
|
if (arrayWrapper) NextArrayValue();
|
|
|
|
mPathInfo.convert();
|
|
}
|
|
|
|
void LottieParserImpl::getValue(model::PathData &obj)
|
|
{
|
|
parsePathInfo();
|
|
obj.mPoints = mPathInfo.mResult;
|
|
obj.mClosed = mPathInfo.mClosed;
|
|
}
|
|
|
|
VPointF LottieParserImpl::parseInperpolatorPoint()
|
|
{
|
|
VPointF cp;
|
|
EnterObject();
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "x")) {
|
|
getValue(cp.rx());
|
|
}
|
|
if (0 == strcmp(key, "y")) {
|
|
getValue(cp.ry());
|
|
}
|
|
}
|
|
return cp;
|
|
}
|
|
|
|
template <typename T>
|
|
bool LottieParserImpl::parseKeyFrameValue(
|
|
const char *key, model::Value<T, model::Position> &value)
|
|
{
|
|
if (0 == strcmp(key, "ti")) {
|
|
value.hasTangent_ = true;
|
|
getValue(value.inTangent_);
|
|
} else if (0 == strcmp(key, "to")) {
|
|
value.hasTangent_ = true;
|
|
getValue(value.outTangent_);
|
|
} else {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
VInterpolator *LottieParserImpl::interpolator(VPointF inTangent,
|
|
VPointF outTangent,
|
|
std::string key)
|
|
{
|
|
if (key.empty()) {
|
|
std::array<char, 20> temp;
|
|
snprintf(temp.data(), temp.size(), "%.2f_%.2f_%.2f_%.2f", inTangent.x(),
|
|
inTangent.y(), outTangent.x(), outTangent.y());
|
|
key = temp.data();
|
|
}
|
|
|
|
auto search = mInterpolatorCache.find(key);
|
|
|
|
if (search != mInterpolatorCache.end()) {
|
|
return search->second;
|
|
}
|
|
|
|
auto obj = allocator().make<VInterpolator>(outTangent, inTangent);
|
|
mInterpolatorCache[std::move(key)] = obj;
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/properties/multiDimensionalKeyframed.json
|
|
*/
|
|
template <typename T, typename Tag>
|
|
void LottieParserImpl::parseKeyFrame(model::KeyFrames<T, Tag> &obj)
|
|
{
|
|
struct ParsedField {
|
|
std::string interpolatorKey;
|
|
bool interpolator{false};
|
|
bool value{false};
|
|
bool hold{false};
|
|
bool noEndValue{true};
|
|
};
|
|
|
|
EnterObject();
|
|
ParsedField parsed;
|
|
typename model::KeyFrames<T, Tag>::Frame keyframe;
|
|
VPointF inTangent;
|
|
VPointF outTangent;
|
|
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "i")) {
|
|
parsed.interpolator = true;
|
|
inTangent = parseInperpolatorPoint();
|
|
} else if (0 == strcmp(key, "o")) {
|
|
outTangent = parseInperpolatorPoint();
|
|
} else if (0 == strcmp(key, "t")) {
|
|
keyframe.start_ = GetDouble();
|
|
} else if (0 == strcmp(key, "s")) {
|
|
parsed.value = true;
|
|
getValue(keyframe.value_.start_);
|
|
continue;
|
|
} else if (0 == strcmp(key, "e")) {
|
|
parsed.noEndValue = false;
|
|
getValue(keyframe.value_.end_);
|
|
continue;
|
|
} else if (0 == strcmp(key, "n")) {
|
|
if (PeekType() == kStringType) {
|
|
parsed.interpolatorKey = GetStringObject();
|
|
} else {
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
if (parsed.interpolatorKey.empty()) {
|
|
parsed.interpolatorKey = GetStringObject();
|
|
} else {
|
|
// skip rest of the string
|
|
Skip(nullptr);
|
|
}
|
|
}
|
|
}
|
|
continue;
|
|
} else if (parseKeyFrameValue(key, keyframe.value_)) {
|
|
continue;
|
|
} else if (0 == strcmp(key, "h")) {
|
|
parsed.hold = GetInt();
|
|
continue;
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vDebug << "key frame property skipped = " << key;
|
|
#endif
|
|
Skip(key);
|
|
}
|
|
}
|
|
|
|
auto &list = obj.frames_;
|
|
if (!list.empty()) {
|
|
// update the endFrame value of current keyframe
|
|
list.back().end_ = keyframe.start_;
|
|
// if no end value provided, copy start value to previous frame
|
|
if (parsed.value && parsed.noEndValue) {
|
|
list.back().value_.end_ = keyframe.value_.start_;
|
|
}
|
|
}
|
|
|
|
if (parsed.hold) {
|
|
keyframe.value_.end_ = keyframe.value_.start_;
|
|
keyframe.end_ = keyframe.start_;
|
|
list.push_back(std::move(keyframe));
|
|
} else if (parsed.interpolator) {
|
|
keyframe.interpolator_ = interpolator(
|
|
inTangent, outTangent, std::move(parsed.interpolatorKey));
|
|
list.push_back(std::move(keyframe));
|
|
} else {
|
|
// its the last frame discard.
|
|
}
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/properties/shapeKeyframed.json
|
|
*/
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/blob/master/docs/json/properties/shape.json
|
|
*/
|
|
void LottieParserImpl::parseShapeProperty(model::Property<model::PathData> &obj)
|
|
{
|
|
EnterObject();
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "k")) {
|
|
if (PeekType() == kArrayType) {
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
parseKeyFrame(obj.animation());
|
|
}
|
|
} else {
|
|
if (!obj.isStatic()) {
|
|
st_ = kError;
|
|
return;
|
|
}
|
|
getValue(obj.value());
|
|
}
|
|
} else {
|
|
#ifdef DEBUG_PARSER
|
|
vDebug << "shape property ignored = " << key;
|
|
#endif
|
|
Skip(nullptr);
|
|
}
|
|
}
|
|
obj.cache();
|
|
}
|
|
|
|
template <typename T, typename Tag>
|
|
void LottieParserImpl::parsePropertyHelper(model::Property<T, Tag> &obj)
|
|
{
|
|
if (PeekType() == kNumberType) {
|
|
if (!obj.isStatic()) {
|
|
st_ = kError;
|
|
return;
|
|
}
|
|
/*single value property with no animation*/
|
|
getValue(obj.value());
|
|
} else {
|
|
EnterArray();
|
|
while (NextArrayValue()) {
|
|
/* property with keyframe info*/
|
|
if (PeekType() == kObjectType) {
|
|
parseKeyFrame(obj.animation());
|
|
} else {
|
|
/* Read before modifying.
|
|
* as there is no way of knowing if the
|
|
* value of the array is either array of numbers
|
|
* or array of object without entering the array
|
|
* thats why this hack is there
|
|
*/
|
|
if (!obj.isStatic()) {
|
|
st_ = kError;
|
|
return;
|
|
}
|
|
/*multi value property with no animation*/
|
|
getValue(obj.value());
|
|
/*break here as we already reached end of array*/
|
|
break;
|
|
}
|
|
}
|
|
obj.cache();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* https://github.com/airbnb/lottie-web/tree/master/docs/json/properties
|
|
*/
|
|
template <typename T>
|
|
void LottieParserImpl::parseProperty(model::Property<T> &obj)
|
|
{
|
|
EnterObject();
|
|
while (const char *key = NextObjectKey()) {
|
|
if (0 == strcmp(key, "k")) {
|
|
parsePropertyHelper(obj);
|
|
} else {
|
|
Skip(key);
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef LOTTIE_DUMP_TREE_SUPPORT
|
|
|
|
class ObjectInspector {
|
|
public:
|
|
void visit(model::Composition *obj, std::string level)
|
|
{
|
|
vDebug << " { " << level << "Composition:: a: " << !obj->isStatic()
|
|
<< ", v: " << obj->mVersion << ", stFm: " << obj->startFrame()
|
|
<< ", endFm: " << obj->endFrame()
|
|
<< ", W: " << obj->size().width()
|
|
<< ", H: " << obj->size().height() << "\n";
|
|
level.append("\t");
|
|
visit(obj->mRootLayer, level);
|
|
level.erase(level.end() - 1, level.end());
|
|
vDebug << " } " << level << "Composition End\n";
|
|
}
|
|
void visit(model::Layer *obj, std::string level)
|
|
{
|
|
vDebug << level << "{ " << layerType(obj->mLayerType)
|
|
<< ", name: " << obj->name() << ", id:" << obj->mId
|
|
<< " Pid:" << obj->mParentId << ", a:" << !obj->isStatic()
|
|
<< ", " << matteType(obj->mMatteType)
|
|
<< ", mask:" << obj->hasMask() << ", inFm:" << obj->mInFrame
|
|
<< ", outFm:" << obj->mOutFrame << ", stFm:" << obj->mStartFrame
|
|
<< ", ts:" << obj->mTimeStreatch << ", ao:" << obj->autoOrient()
|
|
<< ", W:" << obj->layerSize().width()
|
|
<< ", H:" << obj->layerSize().height();
|
|
|
|
if (obj->mLayerType == model::Layer::Type::Image)
|
|
vDebug << level << "\t{ "
|
|
<< "ImageInfo:"
|
|
<< " W :" << obj->extra()->mAsset->mWidth
|
|
<< ", H :" << obj->extra()->mAsset->mHeight << " }"
|
|
<< "\n";
|
|
else {
|
|
vDebug << level;
|
|
}
|
|
visitChildren(static_cast<model::Group *>(obj), level);
|
|
vDebug << level << "} " << layerType(obj->mLayerType).c_str()
|
|
<< ", id: " << obj->mId << "\n";
|
|
}
|
|
void visitChildren(model::Group *obj, std::string level)
|
|
{
|
|
level.append("\t");
|
|
for (const auto &child : obj->mChildren) visit(child, level);
|
|
if (obj->mTransform) visit(obj->mTransform, level);
|
|
}
|
|
|
|
void visit(model::Object *obj, std::string level)
|
|
{
|
|
switch (obj->type()) {
|
|
case model::Object::Type::Repeater: {
|
|
auto r = static_cast<model::Repeater *>(obj);
|
|
vDebug << level << "{ Repeater: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic()
|
|
<< ", copies:" << r->maxCopies()
|
|
<< ", offset:" << r->offset(0);
|
|
visitChildren(r->mContent, level);
|
|
vDebug << level << "} Repeater";
|
|
break;
|
|
}
|
|
case model::Object::Type::Group: {
|
|
vDebug << level << "{ Group: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic();
|
|
visitChildren(static_cast<model::Group *>(obj), level);
|
|
vDebug << level << "} Group";
|
|
break;
|
|
}
|
|
case model::Object::Type::Layer: {
|
|
visit(static_cast<model::Layer *>(obj), level);
|
|
break;
|
|
}
|
|
case model::Object::Type::Trim: {
|
|
vDebug << level << "{ Trim: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic() << " }";
|
|
break;
|
|
}
|
|
case model::Object::Type::Rect: {
|
|
vDebug << level << "{ Rect: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic() << " }";
|
|
break;
|
|
}
|
|
case model::Object::Type::RoundedCorner: {
|
|
vDebug << level << "{ RoundedCorner: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic() << " }";
|
|
break;
|
|
}
|
|
case model::Object::Type::Ellipse: {
|
|
vDebug << level << "{ Ellipse: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic() << " }";
|
|
break;
|
|
}
|
|
case model::Object::Type::Path: {
|
|
vDebug << level << "{ Shape: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic() << " }";
|
|
break;
|
|
}
|
|
case model::Object::Type::Polystar: {
|
|
vDebug << level << "{ Polystar: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic() << " }";
|
|
break;
|
|
}
|
|
case model::Object::Type::Transform: {
|
|
vDebug << level << "{ Transform: name: " << obj->name()
|
|
<< " , a: " << !obj->isStatic() << " }";
|
|
break;
|
|
}
|
|
case model::Object::Type::Stroke: {
|
|
vDebug << level << "{ Stroke: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic() << " }";
|
|
break;
|
|
}
|
|
case model::Object::Type::GStroke: {
|
|
vDebug << level << "{ GStroke: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic() << " }";
|
|
break;
|
|
}
|
|
case model::Object::Type::Fill: {
|
|
vDebug << level << "{ Fill: name: " << obj->name()
|
|
<< " , a:" << !obj->isStatic() << " }";
|
|
break;
|
|
}
|
|
case model::Object::Type::GFill: {
|
|
auto f = static_cast<model::GradientFill *>(obj);
|
|
vDebug << level << "{ GFill: name: " << obj->name()
|
|
<< " , a:" << !f->isStatic() << ", ty:" << f->mGradientType
|
|
<< ", s:" << f->mStartPoint.value(0)
|
|
<< ", e:" << f->mEndPoint.value(0) << " }";
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
std::string matteType(model::MatteType type)
|
|
{
|
|
switch (type) {
|
|
case model::MatteType::None:
|
|
return "Matte::None";
|
|
break;
|
|
case model::MatteType::Alpha:
|
|
return "Matte::Alpha";
|
|
break;
|
|
case model::MatteType::AlphaInv:
|
|
return "Matte::AlphaInv";
|
|
break;
|
|
case model::MatteType::Luma:
|
|
return "Matte::Luma";
|
|
break;
|
|
case model::MatteType::LumaInv:
|
|
return "Matte::LumaInv";
|
|
break;
|
|
default:
|
|
return "Matte::Unknown";
|
|
break;
|
|
}
|
|
}
|
|
std::string layerType(model::Layer::Type type)
|
|
{
|
|
switch (type) {
|
|
case model::Layer::Type::Precomp:
|
|
return "Layer::Precomp";
|
|
break;
|
|
case model::Layer::Type::Null:
|
|
return "Layer::Null";
|
|
break;
|
|
case model::Layer::Type::Shape:
|
|
return "Layer::Shape";
|
|
break;
|
|
case model::Layer::Type::Solid:
|
|
return "Layer::Solid";
|
|
break;
|
|
case model::Layer::Type::Image:
|
|
return "Layer::Image";
|
|
break;
|
|
case model::Layer::Type::Text:
|
|
return "Layer::Text";
|
|
break;
|
|
default:
|
|
return "Layer::Unknown";
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
#endif
|
|
|
|
std::shared_ptr<model::Composition> model::parse(char * str,
|
|
std::string dir_path,
|
|
model::ColorFilter filter)
|
|
{
|
|
LottieParserImpl obj(str, std::move(dir_path), std::move(filter));
|
|
|
|
if (obj.VerifyType()) {
|
|
obj.parseComposition();
|
|
auto composition = obj.composition();
|
|
if (composition) {
|
|
composition->processRepeaterObjects();
|
|
composition->updateStats();
|
|
|
|
#ifdef LOTTIE_DUMP_TREE_SUPPORT
|
|
ObjectInspector inspector;
|
|
inspector.visit(composition.get(), "");
|
|
#endif
|
|
|
|
return composition;
|
|
}
|
|
}
|
|
|
|
vWarning << "Input data is not Lottie format!";
|
|
return {};
|
|
}
|
|
|
|
RAPIDJSON_DIAG_POP
|