1 /*
2  * Copyright (c) 2023 - 2024 the ThorVG project. All rights reserved.
3 
4  * Permission is hereby granted, free of charge, to any person obtaining a copy
5  * of this software and associated documentation files (the "Software"), to deal
6  * in the Software without restriction, including without limitation the rights
7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8  * copies of the Software, and to permit persons to whom the Software is
9  * furnished to do so, subject to the following conditions:
10 
11  * The above copyright notice and this permission notice shall be included in all
12  * copies or substantial portions of the Software.
13 
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20  * SOFTWARE.
21  */
22 
23 #include "../../lv_conf_internal.h"
24 #if LV_USE_THORVG_INTERNAL
25 
26 #ifndef _TVG_LOTTIE_LOADER_H_
27 #define _TVG_LOTTIE_LOADER_H_
28 
29 #include "tvgCommon.h"
30 #include "tvgFrameModule.h"
31 #include "tvgTaskScheduler.h"
32 
33 struct LottieComposition;
34 struct LottieBuilder;
35 
36 class LottieLoader : public FrameModule, public Task
37 {
38 public:
39     const char* content = nullptr;      //lottie file data
40     uint32_t size = 0;                  //lottie data size
41     float frameNo = 0.0f;               //current frame number
42     float frameCnt = 0.0f;
43     float frameDuration = 0.0f;
44     float frameRate = 0.0f;
45 
46     LottieBuilder* builder;
47     LottieComposition* comp = nullptr;
48 
49     Key key;
50     char* dirName = nullptr;            //base resource directory
51     bool copy = false;                  //"content" is owned by this loader
52     bool overridden = false;             //overridden properties with slots
53     bool rebuild = false;               //require building the lottie scene
54 
55     LottieLoader();
56     ~LottieLoader();
57 
58     bool open(const string& path) override;
59     bool open(const char* data, uint32_t size, bool copy) override;
60     bool resize(Paint* paint, float w, float h) override;
61     bool read() override;
62     Paint* paint() override;
63     bool override(const char* slot);
64 
65     //Frame Controls
66     bool frame(float no) override;
67     float totalFrame() override;
68     float curFrame() override;
69     float duration() override;
70     void sync() override;
71 
72     //Marker Supports
73     uint32_t markersCnt();
74     const char* markers(uint32_t index);
75     bool segment(const char* marker, float& begin, float& end);
76 
77 private:
78     bool ready();
79     bool header();
80     void clear();
81     float startFrame();
82     void run(unsigned tid) override;
83     void release();
84 };
85 
86 
87 #endif //_TVG_LOTTIELOADER_H_
88 
89 #endif /* LV_USE_THORVG_INTERNAL */
90 
91