Squashed 'external/rlottie/' changes from bf3d272df..875626965

875626965 Check border of color table while generating gradient
d1636c7b4 Ignore animations with objects of unspecified type
f3eed9a33 add formal parameter void to lottie_init() and lottie_shutdown()
519bd08b0 Add lottie_init() and lottie_shutdown() c api.
447cb7dd1 replace unsigned int with uint32_t in Int()
d7cf0a5ab replace uint ushort and uchar typedefs with uint32 uint16 and uint8 -- added format script to run clang format on latest commit.
16beec845 lottiemodel: Improve opacity calculation for gradient stop
327fb7dba Reject reversed frames
625bc4c48 Finite loop in VBezier::tAtLength()
ddbc9dce7 rlottie/capi: Add missing multiply for Path
c0e16e571 Check Layer.mExtra and Transform.mExtra before dereferencing
9f78532c8 Avoid access to last element of empty mChildren vector
4e08acd8c remove RAPIDJSON_ASSERT() by placing the parser in error state
7affa78fe Fix dereferencing of null pointer in model::Layer::solidColor() getter
9d17ff8e6 Skip dash array of size one or zero
f379dfe15 add the /inc folder as an include path at build time
194b31736 Improve matte rendering performance for simple layer
7c5b40cbb CMake: fix MSVC warnings
fa44b753e fix compileing error
41f906480 On windows, stbi__fopen opens a path containing non-English characters or symbols will fail due to encoding problems, so the filename parameter is assumed to be utf-8 and converted to utf-16, and then call _wfopen_s or _wfopen
29b391b95 add lottie_configure_model_cache_size() c api
3cd00151c Fix comparison
bd4c4e1f8 MT and MTd
c593b57eb Remove link warnings on MSVC
132ca0a00 #include "fix" for rust-bindgen
c9780b46d Fix CMake build in subdirectory
1cb2021d6 Fix crash when path animation  data is empty
ad9beaec6 Added support for RoundedCornor objects.
a41bd7383 rlottie: draw line if width or height is 0
ed94baf14 resource: polish player png image.
9b4c4d2af resource: add rlottie_player image.
2d7b1fa2b Fixed build with GCC 11.
9cd9a6e95 vs2019: Add release build option
d733e953b updated AUTHORS
fc760ef92 updated AUTHORS
d92d4aaf6 wasm: Add extra functions for lottie animation to use them in rlottie viewer
09662b89d updated AUTHORS
71fbff5d5 example/win32Player: removed unnecessary files.
d25911e6c add app executables
538dfd9aa rename directory rlottiePlayer to win32Player
6fbb67d49 fix openJSONFileDialog
85856dff3 fix animation replace error
f86e97d65 fix animation bitmap size to be set dynamically
55815b2cb move function prototype to animation.h To prevent function prototype duplicate code in source.cpp.
9a71eeca9 add an example of win32 app that play rlottie animation by vs2019
619320cbb add rlottiePlayer Project
4884e0e9b Modify: Update .gitignore
3ebf0c7e3 Docs: Fix README typo
502cc3638 updated license in spec file.
e812ba9e9 Docs: Fix README typo
c98ec565d Update README.md
33295c22f Fixed README typo
073224e69 fixed readme typo
ff8ddfc49 ci: upgrade windows build chain to VS2017
10c1055a3 fixed sign extension warning
98ed2620a build: use shared_module instead of shared_library

git-subtree-dir: external/rlottie
git-subtree-split: 875626965959d8e269ca22175c8e1ad190696c43

.appveyor.yml

@@ -12,7 +12,7 @@ install:
   - git submodule update --init --recursive
   - set PATH=%cd%;%PYTHON%;%PYTHON%\Scripts;%PATH%
   - pip install meson==0.50.0 ninja
-  - call "%VS140COMNTOOLS%\..\..\VC\vcvarsall.bat" %ARCH%
+  - call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars64.bat"
 build_script:
   - meson -Dwerror=false --backend=ninja --prefix=%cd%  build
   - where link
@@ -20,4 +20,4 @@ build_script:
 test_script:
   - ninja -C build test
 after_build:
-  - ninja -C build install
+  - ninja -C build install

.gitignore

@@ -11,3 +11,4 @@ tmp
 .project
 .vs
 **/*.DS_Store
+builddir_wasm

AUTHORS

@@ -10,3 +10,9 @@ Shinwoo Kim <cinoo.kim@samsung.com>
 Vincent Torri <vincent.torri@gmail.com>
 Nicholas Guriev <guriev-ns@ya.ru>
 John Preston <johnprestonmail@gmail.com>
+Anatoly Korniltsev <korniltsev.anatoly@gmail.com>
+Александр Першин <a.pershin@corp.mail.ru>
+Anton Sergeev <antonsergeev88@gmail.com>
+HyunGu Lee <start3a@gmail.com>
+ChaeLin Shin <chaelinshin96@gmail.com>
+Seungjae Yoon <artium59@gmail.com>

CMakeLists.txt

@@ -41,28 +41,32 @@ set(LOTTIE_MODULE_PATH "${CMAKE_SHARED_LIBRARY_PREFIX}rlottie-image-loader${CMAK
 configure_file(${CMAKE_CURRENT_LIST_DIR}/cmake/config.h.in config.h)
 
 target_include_directories(rlottie
+    PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/inc>
     PRIVATE
         "${CMAKE_CURRENT_BINARY_DIR}"
     )
 
 #declare common target compilation options
-target_compile_options(rlottie
+if(MSVC)
-                    PUBLIC
-                    PRIVATE
-                        -std=c++14
-                        -fno-exceptions
-                        -fno-unwind-tables
-                        -fno-asynchronous-unwind-tables
-                        -fno-rtti
-                        -Wall
-                        -fvisibility=hidden
-                    )
-
-#MSVC does not recognize these parameters
-if (NOT WIN32)
     target_compile_options(rlottie
                         PUBLIC
                         PRIVATE
+                            /std:c++14
+                            /EHs-c- # disable exceptions
+                            /GR- # disable RTTI
+                            /W3
+                        )
+else()
+    target_compile_options(rlottie
+                        PUBLIC
+                        PRIVATE
+                            -std=c++14
+                            -fno-exceptions
+                            -fno-unwind-tables
+                            -fno-asynchronous-unwind-tables
+                            -fno-rtti
+                            -Wall
+                            -fvisibility=hidden
                             -Wnon-virtual-dtor
                             -Woverloaded-virtual
                             -Wno-unused-parameter
@@ -71,6 +75,8 @@ endif()
 
 if (WIN32 AND NOT BUILD_SHARED_LIBS)
     target_compile_definitions(rlottie PUBLIC -DRLOTTIE_BUILD=0)
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /MT")
+    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MTd")
 endif()
 
 #declare dependancy
@@ -85,7 +91,7 @@ target_link_libraries(rlottie
 if (NOT APPLE AND NOT WIN32)
     target_link_libraries(rlottie
                         PRIVATE
-                            "-Wl,--version-script=${CMAKE_SOURCE_DIR}/rlottie.expmap"
+                            "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/rlottie.expmap"
                           )
 endif()
 
@@ -100,7 +106,7 @@ if (NOT LOTTIE_ASAN)
                             PUBLIC
                                  "-Wl, -undefined error"
                               )
-    else()
+    elseif(NOT MSVC)
         target_link_libraries(rlottie
                             PUBLIC
                                  "-Wl,--no-undefined"
@@ -195,4 +201,3 @@ export(EXPORT rlottie-targets FILE ${CMAKE_CURRENT_BINARY_DIR}/rlottieTargets.cm
 
 #Register package in user's package registry
 export(PACKAGE rlottie)
-

README.md

@@ -3,6 +3,7 @@
 
 [![Build Status](https://travis-ci.org/Samsung/rlottie.svg?branch=master)](https://travis-ci.org/Samsung/rlottie)
 [![Build status](https://ci.appveyor.com/api/projects/status/n3xonxk1ooo6s7nr?svg=true&passingText=windows%20-%20passing)](https://ci.appveyor.com/project/smohantty/rlottie-mliua)
+[![Gitter](https://badges.gitter.im/rLottie-dev/community.svg)](https://gitter.im/rLottie-dev/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 
 <p align="center">
   <img width="240" height="240" src="https://github.com/Samsung/rlottie/blob/master/.Gifs/logo.png">
@@ -35,7 +36,7 @@ Here are small samples of the power of Lottie.
 - [Issues or Feature Requests?](#issues-or-feature-requests)
 
 ## Building Lottie
-rottie supports [meson](https://mesonbuild.com/) and [cmake](https://cmake.org/) build system. rottie is written in `C++14`. and has a public header dependancy of `C++11`
+rlottie supports [meson](https://mesonbuild.com/) and [cmake](https://cmake.org/) build system. rlottie is written in `C++14`. and has a public header dependency of `C++11`
 
 ### Meson Build
 install [meson](http://mesonbuild.com/Getting-meson.html) and [ninja](https://ninja-build.org/) if not already installed.
@@ -98,7 +99,7 @@ ninja test
 
 #
 ## Demo
-If you want to see rlottie librray in action without building it please visit [rlottie online viewer](http://rlottie.com)
+If you want to see rlottie library in action without building it please visit [rlottie online viewer](http://rlottie.com)
 
 While building rlottie library it generates a simple lottie to GIF converter which can be used to convert lottie json file to GIF file.
 
@@ -166,7 +167,7 @@ You can update properties dynamically at runtime. This can be used for a variety
 
 ### Understanding After Effects
 
-To understand how to change animation properties in Lottie, you should first understand how animation properties are stored in Lottie. Animation properties are stored in a data tree that mimics the information heirarchy of After Effects. In After Effects a Composition is a collection of Layers that each have their own timelines. Layer objects have string names, and their contents can be an image, shape layers, fills, strokes, or just about anything that is drawable. Each object in After Effects has a name. Lottie can find these objects and properties by their name using a KeyPath.
+To understand how to change animation properties in Lottie, you should first understand how animation properties are stored in Lottie. Animation properties are stored in a data tree that mimics the information hierarchy of After Effects. In After Effects a Composition is a collection of Layers that each have their own timelines. Layer objects have string names, and their contents can be an image, shape layers, fills, strokes, or just about anything that is drawable. Each object in After Effects has a name. Lottie can find these objects and properties by their name using a KeyPath.
 
 ### Usage
 

example/CMakeLists.txt

@@ -1,8 +1,14 @@
 add_executable(lottie2gif "lottie2gif.cpp")
 
-target_compile_options(lottie2gif
+if(MSVC)
-                       PRIVATE
+    target_compile_options(lottie2gif
-                       -std=c++14)
+                           PRIVATE
+                           /std:c++14)
+else()
+    target_compile_options(lottie2gif
+                           PRIVATE
+                           -std=c++14)
+endif()
 
 target_link_libraries(lottie2gif rlottie)
 

example/win32Player/Source.cpp

@@ -0,0 +1,60 @@
+#include "rlottie.h"
+#include "animation.h"
+using namespace rlottie;
+
+std::unique_ptr<Animation> anim;
+uint32_t *buffer;
+size_t width, height;
+size_t bytesPerLine;
+uint32_t curColor = UINT32_MAX;
+
+void setAnimationSize(size_t w, size_t h)
+{
+	width = w;
+	height = h;
+	bytesPerLine = width * sizeof(uint32_t);
+
+    if (buffer != NULL) freeAnimation();
+	buffer = (uint32_t*)calloc(bytesPerLine * height, sizeof(uint32_t));
+}
+
+void setAnimation(char* path, size_t* w, size_t* h)
+{
+	anim = Animation::loadFromFile(path);
+    anim->size(*w, *h);
+    setAnimationSize(*w, *h);
+}
+
+uint32_t* renderRLottieAnimation(uint32_t frameNum)
+{
+	Surface surface = Surface(buffer, width, height, bytesPerLine);
+	anim->renderSync(frameNum, surface);
+	// background color
+	for (int i = 0; i < height; i++)
+        for (int j = 0; j < width; ++j)
+		{
+			uint32_t* v = buffer + i * width + j;
+			if (*v == 0) *v = curColor;
+		}
+	return buffer;
+}
+
+void setAnimationColor(int r, int g, int b)
+{
+	curColor = ((255 << 16) * r) + ((255 << 8) * g) + 255 * b;
+}
+
+size_t getTotalFrame()
+{
+	return anim->totalFrame();
+}
+
+bool isAnimNULL()
+{
+	return anim == NULL;
+}
+
+void freeAnimation()
+{
+    free(buffer);
+}

example/win32Player/animation.h

@@ -0,0 +1,10 @@
+#pragma once
+#include <stdint.h>
+
+void      setAnimation(char* path, size_t* w, size_t* h);
+void      setAnimationSize(size_t w, size_t h);
+uint32_t* renderRLottieAnimation(uint32_t frameNum);
+size_t    getTotalFrame();
+bool      isAnimNULL();
+void      setAnimationColor(int r, int g, int b);
+void      freeAnimation();

example/win32Player/framework.h

@@ -0,0 +1,15 @@
+// header.h : include file for standard system include files,
+// or project specific include files
+//
+
+#pragma once
+
+#include "targetver.h"
+#define WIN32_LEAN_AND_MEAN             // Exclude rarely-used stuff from Windows headers
+// Windows Header Files
+#include <windows.h>
+// C RunTime Header Files
+#include <stdlib.h>
+#include <malloc.h>
+#include <memory.h>
+#include <tchar.h>

example/win32Player/resource.h

@@ -0,0 +1,40 @@
+//{{NO_DEPENDENCIES}}
+// This is an include file generated by Microsoft Visual C++.
+// It is being used in rlottiePlayer.rc.
+//
+#define IDC_MYICON                      2
+#define IDD_RLOTTIEPLAYER_DIALOG        102
+#define IDS_APP_TITLE                   103
+#define IDD_ABOUTBOX                    103
+#define IDM_ABOUT                       104
+#define IDM_EXIT                        105
+#define IDI_RLOTTIEPLAYER               107
+#define IDI_SMALL                       108
+#define IDC_RLOTTIEPLAYER               109
+#define IDR_MAINFRAME                   128
+#define MAIN_WINDOW                     130
+#define BTN_BROWSE                      1004
+#define BTN_WHITE                       1005
+#define BTN_BLACK                       1006
+#define BTN_RED                         1007
+#define BTN_GREEN                       1008
+#define BTN_BLUE                        1009
+#define SLIDER_CANVAS_RESIZE			1010
+#define BTN_PLAY                        1011
+#define SLIDER_PLAY                     1012
+#define TEXT_FILENAME                   1013
+#define PICCTRL_RLOTTIE                 1014
+#define TIMER_PLAY_ANIM				1015
+#define IDC_STATIC                      -1
+
+// Next default values for new objects
+// 
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NO_MFC                     1
+#define _APS_NEXT_RESOURCE_VALUE        131
+#define _APS_NEXT_COMMAND_VALUE         32771
+#define _APS_NEXT_CONTROL_VALUE         1017
+#define _APS_NEXT_SYMED_VALUE           110
+#endif
+#endif

example/win32Player/rlottiePlayer.cpp

@@ -0,0 +1,521 @@
+// rlottiePlayer.cpp : Defines the entry point for the application.
+//
+
+
+#include "framework.h"
+#include "rlottiePlayer.h"
+using namespace Gdiplus;
+
+#define MAX_LOADSTRING 100
+
+// Global Variables:
+HINSTANCE hInst;                                        // current instance
+WCHAR szTitle[MAX_LOADSTRING];                  // The title bar text
+WCHAR szWindowClass[MAX_LOADSTRING];            // the main window class name
+HWND mainWindow;                                    // Main Window Instance
+HWND hTextFileToBeOpened;                               // openDialog file path
+HWND hBtnPlay;
+HWND hSliderPlay, hSliderCanvasResize;
+UINT curFrame = 0;
+RlottieBitmap anim;                                          // rendered Animation Bitmap
+RECT animRect, backRect;
+size_t animWidth, animHeight;
+Gdiplus::Color backColor(255, 255, 255, 255);
+Gdiplus::Color borderColor(255, 0, 0, 0);
+bool isViewChanged = false;
+
+// Forward declarations of functions included in this code module:
+ATOM                MyRegisterClass(HINSTANCE hInstance);
+BOOL                InitInstance(HINSTANCE, int);
+LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);
+INT_PTR CALLBACK    About(HWND, UINT, WPARAM, LPARAM);
+void openJSONFileDialog(HWND);
+void initUIControl(HWND);
+void dlgUICommand(HWND, WPARAM);
+void resizeCanvas(HWND, int);
+void changeBackgroundColor(int r, int g, int b);
+
+// Animation Rendering Functions
+void draw(HDC);
+Bitmap* CreateBitmap(void* data, unsigned int width, unsigned int height);
+void renderAnimation(UINT);
+
+int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
+    _In_opt_ HINSTANCE hPrevInstance,
+    _In_ LPWSTR    lpCmdLine,
+    _In_ int       nCmdShow)
+{
+    UNREFERENCED_PARAMETER(hPrevInstance);
+    UNREFERENCED_PARAMETER(lpCmdLine);
+
+    // initialize Gdiplus
+    Gdiplus::GdiplusStartupInput gdiplusStartUpInput;
+    ULONG_PTR gdiplustoken;
+    Gdiplus::GdiplusStartup(&gdiplustoken, &gdiplusStartUpInput, nullptr);
+
+    // Initialize global strings
+    LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
+    LoadStringW(hInstance, IDC_RLOTTIEPLAYER, szWindowClass, MAX_LOADSTRING);
+    MyRegisterClass(hInstance);
+
+    // Perform application initialization:
+    if (!InitInstance(hInstance, nCmdShow))
+    {
+        return FALSE;
+    }
+
+    HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_RLOTTIEPLAYER));
+
+    MSG msg;
+
+    // Main message loop:
+    while (GetMessage(&msg, nullptr, 0, 0))
+    {
+        if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
+        {
+            TranslateMessage(&msg);
+            DispatchMessage(&msg);
+        }
+    }
+
+    Gdiplus::GdiplusShutdown(gdiplustoken);
+    return (int)msg.wParam;
+}
+
+
+
+//
+//  FUNCTION: MyRegisterClass()
+//
+//  PURPOSE: Registers the window class.
+//
+ATOM MyRegisterClass(HINSTANCE hInstance)
+{
+    WNDCLASSEXW wcex;
+
+    wcex.cbSize = sizeof(WNDCLASSEX);
+
+    wcex.style = CS_HREDRAW | CS_VREDRAW;
+    wcex.lpfnWndProc = WndProc;
+    wcex.cbClsExtra = 0;
+    wcex.cbWndExtra = 0;
+    wcex.hInstance = hInstance;
+    wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_RLOTTIEPLAYER));
+    wcex.hCursor = LoadCursor(nullptr, IDC_ARROW);
+    wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
+    wcex.lpszMenuName = MAKEINTRESOURCEW(IDC_RLOTTIEPLAYER);
+    wcex.lpszClassName = szWindowClass;
+    wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
+
+    return RegisterClassExW(&wcex);
+}
+
+//
+//   FUNCTION: InitInstance(HINSTANCE, int)
+//
+//   PURPOSE: Saves instance handle and creates main window
+//
+//   COMMENTS:
+//
+//        In this function, we save the instance handle in a global variable and
+//        create and display the main program window.
+//
+BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
+{
+    hInst = hInstance; // Store instance handle in our global variable
+
+    DWORD dwStyle = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
+    mainWindow = CreateWindowEx(0, szWindowClass, szTitle, dwStyle,
+        CW_USEDEFAULT, CW_USEDEFAULT, WND_WIDTH, WND_HEIGHT, nullptr, nullptr, hInstance, nullptr);
+
+    if (!mainWindow)
+    {
+        return FALSE;
+    }
+
+    ShowWindow(mainWindow, nCmdShow);
+    UpdateWindow(mainWindow);
+    SetMenu(mainWindow, NULL);
+
+    return TRUE;
+}
+
+//
+//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
+//
+//  PURPOSE: Processes messages for the main window.
+//
+//  WM_COMMAND  - process the application menu
+//  WM_PAINT    - Paint the main window
+//  WM_DESTROY  - post a quit message and return
+//
+//
+LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
+{
+    static bool isplay = false;
+    int wmId = LOWORD(wParam);
+
+    switch (message)
+    {
+    case WM_CREATE:
+    {
+        initUIControl(hWnd);
+        break;
+    }
+    case WM_TIMER:
+    {
+        switch (wmId)
+        {
+        case TIMER_PLAY_ANIM:
+        {
+            renderAnimation(curFrame + 1);
+            SendMessage(hSliderPlay, TBM_SETPOS, TRUE, curFrame);
+            break;
+        }
+        default:
+            break;
+        }
+        break;
+    }
+    case WM_COMMAND:
+    {
+        // Parse the menu selections:
+        switch (wmId)
+        {
+        case IDM_ABOUT:
+            DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
+            break;
+
+        case IDM_EXIT:
+            DestroyWindow(hWnd);
+            break;
+
+        case BTN_BROWSE:
+            openJSONFileDialog(hWnd);
+            break;
+
+        case BTN_PLAY:
+        {
+            LPWSTR textBtnPlay;
+            USES_CONVERSION;
+            if (isplay)
+            {
+                isplay = false;
+                textBtnPlay = A2W("Play");
+                KillTimer(hWnd, TIMER_PLAY_ANIM);
+            }
+            else
+            {
+                isplay = true;
+                textBtnPlay = A2W("Pause");
+                SetTimer(hWnd, TIMER_PLAY_ANIM, 10, NULL);
+            }
+            SetWindowText(hBtnPlay, textBtnPlay);
+            break;
+        }
+
+        case WM_DROPFILES:
+            break;
+        case BTN_WHITE:
+            changeBackgroundColor(1, 1, 1);
+            break;
+        case BTN_BLACK:
+            changeBackgroundColor(0, 0, 0);
+            break;
+        case BTN_RED:
+            changeBackgroundColor(1, 0, 0);
+            break;
+        case BTN_GREEN:
+            changeBackgroundColor(0, 1, 0);
+            break;
+        case BTN_BLUE:
+            changeBackgroundColor(0, 0, 1);
+            break;
+
+        default:
+            return DefWindowProc(hWnd, message, wParam, lParam);
+        }
+    }
+    break;
+
+    case WM_HSCROLL:
+    {
+        if ((lParam != 0) && (reinterpret_cast<HWND>(lParam) == hSliderPlay))
+        {
+            UINT frameNum = SendDlgItemMessage(hWnd, SLIDER_PLAY, TBM_GETPOS, 0, 0);
+            renderAnimation(frameNum);
+        }
+        else if ((lParam != 0) && (reinterpret_cast<HWND>(lParam) == hSliderCanvasResize))
+        {
+            static int curSize = anim.width / RESIZE_LENGTH;
+            int newSize = SendDlgItemMessage(hWnd, SLIDER_CANVAS_RESIZE, TBM_GETPOS, 0, 0);
+            resizeCanvas(hWnd, (curSize - newSize) * RESIZE_LENGTH);
+            curSize = newSize;
+        }
+        break;
+    }
+
+    case WM_PAINT:
+    {
+        PAINTSTRUCT ps;
+        HDC hdc = BeginPaint(hWnd, &ps);
+        draw(hdc);
+        EndPaint(hWnd, &ps);
+    }
+    break;
+    case WM_CTLCOLORSTATIC:
+    {
+        static HBRUSH hBrushEdit = CreateSolidBrush(RGB(255, 255, 255));
+        return (LRESULT)hBrushEdit;
+    }
+
+    case WM_DESTROY:
+        freeAnimation();
+        PostQuitMessage(0);
+        break;
+
+    default:
+        return DefWindowProc(hWnd, message, wParam, lParam);
+    }
+    return 0;
+}
+
+// Message handler for about box.
+INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
+{
+    UNREFERENCED_PARAMETER(lParam);
+    switch (message)
+    {
+    case WM_INITDIALOG:
+        return (INT_PTR)TRUE;
+
+    case WM_COMMAND:
+        if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
+        {
+            EndDialog(hDlg, LOWORD(wParam));
+            return (INT_PTR)TRUE;
+        }
+        break;
+    }
+    return (INT_PTR)FALSE;
+}
+
+void openJSONFileDialog(HWND hDlg)
+{
+    OPENFILENAME ofn;       // common dialog box structure
+    TCHAR szFile[260] = { 0 };       // if using TCHAR macros
+
+    // Initialize OPENFILENAME
+    ZeroMemory(&ofn, sizeof(ofn));
+    ofn.lStructSize = sizeof(ofn);
+    ofn.hwndOwner = hDlg;
+    ofn.lpstrFile = szFile;
+    ofn.nMaxFile = sizeof(szFile);
+    ofn.lpstrFilter = _T("JSON\0*.json\0");
+    ofn.nFilterIndex = 1;
+    ofn.lpstrFileTitle = NULL;
+    ofn.nMaxFileTitle = 0;
+    ofn.lpstrInitialDir = NULL;
+    ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
+
+    isViewChanged = true;
+    if (GetOpenFileName(&ofn))
+    {
+        isViewChanged = true;
+        SetWindowText(hTextFileToBeOpened, ofn.lpstrFile);
+        // LPWSTR(w_char*) -> LPSTR(char*)
+        USES_CONVERSION;
+        LPSTR path = W2A(ofn.lpstrFile);
+
+        setAnimation(path, &animWidth, &animHeight);
+        // init play slider
+        SendMessage(hSliderPlay, TBM_SETRANGE, FALSE, MAKELPARAM(0, getTotalFrame()));
+        SendMessage(hSliderPlay, TBM_SETPOS, TRUE, 0);
+        renderAnimation(0);
+    }
+}
+
+void draw(HDC hdc)
+{
+    Graphics gf(hdc);
+    int half_interval = UI_INTERVAL / 2;
+
+    // background
+    SolidBrush brush(backColor);
+    int back_y = half_interval + BTN_HEIGHT;
+    int back_height = back_y + BMP_MAX_LEN + UI_INTERVAL;
+    if (isViewChanged)
+    {
+        isViewChanged = false;
+        gf.FillRectangle(&brush, 0, back_y, WND_WIDTH, back_height);
+    }
+
+    // image borderline
+    Pen pen(borderColor);
+    gf.DrawRectangle(&pen, anim.x - half_interval, anim.y - half_interval, anim.width + half_interval * 2, anim.height + half_interval * 2);
+
+    // image
+    if (anim.image != NULL)
+    {
+        gf.DrawImage(anim.image, anim.x, anim.y, anim.width, anim.height);
+    }
+}
+
+Bitmap* CreateBitmap(void* data, unsigned int width, unsigned int height)
+{
+    BITMAPINFO Info;
+    memset(&Info, 0, sizeof(Info));
+
+    Info.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+    Info.bmiHeader.biWidth = width;
+    Info.bmiHeader.biHeight = height;
+    Info.bmiHeader.biPlanes = 1;
+    Info.bmiHeader.biBitCount = 32;
+    Info.bmiHeader.biCompression = BI_RGB;
+    Info.bmiHeader.biSizeImage = 0;  //(((32 * width + 31) & ~31) / 8) * height;
+
+    return new Gdiplus::Bitmap(&Info, data);
+}
+
+void renderAnimation(UINT frameNum)
+{
+    if (isAnimNULL()) return;
+    if (anim.image != NULL) delete anim.image;
+
+    curFrame = frameNum % getTotalFrame();
+
+    // render
+    UINT* resRender = renderRLottieAnimation(curFrame);
+    anim.image = CreateBitmap(resRender, animWidth, animHeight);
+    anim.image->RotateFlip(RotateNoneFlipY);
+    // call WM_PAINT message
+    InvalidateRect(mainWindow, &animRect, FALSE);
+}
+
+void initUIControl(HWND hWnd)
+{
+    int half_ui_interval = UI_INTERVAL / 2;
+
+    // button browse
+    int browse_x = UI_INTERVAL;
+    int browse_y = half_ui_interval;
+    CreateWindow(L"button", L"Browse", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
+        browse_x, browse_y, BTN_WIDTH, BTN_HEIGHT, hWnd, (HMENU)BTN_BROWSE, hInst, NULL);
+
+    // textbox FilePath
+    int textFile_x = browse_x + BTN_WIDTH + UI_INTERVAL;
+    int textFile_y = browse_y;
+    hTextFileToBeOpened = CreateWindowEx(0, L"static", L"No file selected.", WS_CHILD | WS_VISIBLE | ES_LEFT,
+        textFile_x, textFile_y, WND_WIDTH * 0.6, TEXT_HEIGHT, hWnd, (HMENU)TEXT_FILENAME, hInst, 0);
+
+    // image
+    anim.x = WND_WIDTH / 4;
+    anim.y = browse_y + BTN_HEIGHT + UI_INTERVAL * 2;
+    anim.width = BMP_MAX_LEN;
+    anim.height = anim.width;
+
+    // animating range
+    SetRect(&animRect, 
+        anim.x - UI_INTERVAL, 
+        anim.y - UI_INTERVAL,
+        anim.x + anim.width + UI_INTERVAL * 2,
+        anim.y + anim.height + UI_INTERVAL * 2
+    );
+
+    // background range
+    SetRect(&backRect,
+        0,
+        anim.y - UI_INTERVAL,
+        WND_WIDTH,
+        anim.y + anim.height + UI_INTERVAL * 2
+    );
+
+    // text Background Color
+    int textBC_x = WND_WIDTH / 20;
+    int textBC_y = anim.y + anim.height + UI_INTERVAL * 2;
+    CreateWindowEx(0, L"static", L"Background Color", WS_CHILD | WS_VISIBLE | ES_LEFT,
+        textBC_x, textBC_y, 120, TEXT_HEIGHT, hWnd, (HMENU)TEXT_FILENAME, hInst, 0);
+
+    // radio button
+    // white
+    int white_x = WND_WIDTH / 20;
+    int white_y = textBC_y + TEXT_HEIGHT + half_ui_interval;
+    CreateWindowEx(0, L"button", L"White", WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON,
+        white_x, white_y, RDOBTN_WIDTH, RDOBTN_HEIGHT, hWnd, (HMENU)BTN_WHITE, hInst, NULL);
+
+    // black
+    int black_x = white_x + RDOBTN_WIDTH + half_ui_interval;
+    int black_y = white_y;
+    CreateWindowEx(0, L"button", L"Black", WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON,
+        black_x, black_y, RDOBTN_WIDTH, RDOBTN_HEIGHT, hWnd, (HMENU)BTN_BLACK, hInst, NULL);
+
+    // red
+    int red_x = black_x + RDOBTN_WIDTH + half_ui_interval;
+    int red_y = white_y;
+    CreateWindowEx(0, L"button", L"Red", WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON,
+        red_x, red_y, RDOBTN_WIDTH, RDOBTN_HEIGHT, hWnd, (HMENU)BTN_RED, hInst, NULL);
+
+    // green
+    int green_x = red_x + RDOBTN_WIDTH + half_ui_interval;
+    int green_y = white_y;
+    CreateWindowEx(0, L"button", L"Green", WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON,
+        green_x, green_y, RDOBTN_WIDTH, RDOBTN_HEIGHT, hWnd, (HMENU)BTN_GREEN, hInst, NULL);
+
+    // blue
+    int blue_x = green_x + RDOBTN_WIDTH + half_ui_interval;
+    int blue_y = white_y;
+    CreateWindowEx(0, L"button", L"Blue", WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON,
+        blue_x, blue_y, RDOBTN_WIDTH, RDOBTN_HEIGHT, hWnd, (HMENU)BTN_BLUE, hInst, NULL);
+
+    CheckRadioButton(hWnd, BTN_WHITE, BTN_BLUE, BTN_WHITE);
+
+    // text Canvas Resize
+    int textCR_x = WND_WIDTH / 2;
+    int textCR_y = textBC_y;
+    CreateWindowEx(0, L"static", L"Canvas Resize", WS_CHILD | WS_VISIBLE | ES_LEFT,
+        textCR_x, textCR_y, 120, TEXT_HEIGHT, hWnd, (HMENU)TEXT_FILENAME, hInst, 0);
+
+    // slider Canvas Resize
+    int sliderCR_x = textCR_x;
+    int sliderCR_y = textCR_y + TEXT_HEIGHT + half_ui_interval;
+    hSliderCanvasResize = CreateWindowExW(0, TRACKBAR_CLASSW, NULL, WS_CHILD | WS_VISIBLE | TBS_FIXEDLENGTH | TBS_NOTICKS,
+        sliderCR_x, sliderCR_y, WND_WIDTH * 0.2, SLIDER_HEIGHT, hWnd, (HMENU)SLIDER_CANVAS_RESIZE, hInst, NULL);
+
+    // init resize slider
+    UINT sizeSlider = anim.width / RESIZE_LENGTH;
+    SendMessage(hSliderCanvasResize, TBM_SETRANGE, FALSE, MAKELPARAM(0, sizeSlider));
+    SendMessage(hSliderCanvasResize, TBM_SETPOS, TRUE, sizeSlider);
+
+    // button play
+    int btnPlay_x = WND_WIDTH / 10;
+    int btnPlay_y = red_y + RDOBTN_HEIGHT + UI_INTERVAL * 2;
+    hBtnPlay = CreateWindow(L"button", L"Play", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
+        btnPlay_x, btnPlay_y, BTN_WIDTH, BTN_HEIGHT, hWnd, (HMENU)BTN_PLAY, hInst, NULL);
+
+    // slider play
+    int sliderPlay_x = btnPlay_x + BTN_WIDTH + UI_INTERVAL;
+    int sliderPlay_y = btnPlay_y;
+    hSliderPlay = CreateWindowExW(0, TRACKBAR_CLASSW, NULL, WS_CHILD | WS_VISIBLE | TBS_FIXEDLENGTH | TBS_NOTICKS,
+        sliderPlay_x, sliderPlay_y, WND_WIDTH * 0.6, SLIDER_HEIGHT, hWnd, (HMENU)SLIDER_PLAY, hInst, NULL);
+}
+
+void resizeCanvas(HWND hWnd, int resizeValue)
+{
+    isViewChanged = true;
+    anim.x += resizeValue / 2;
+    anim.y += resizeValue / 2;
+    anim.width -= resizeValue;
+    anim.height -= resizeValue;
+    InvalidateRect(hWnd, &animRect, TRUE);
+}
+
+void changeBackgroundColor(int r, int g, int b)
+{
+    isViewChanged = true;
+    backColor = Gdiplus::Color(r * 255, g * 255, b * 255);
+    if (r + g + b == 0) borderColor = Gdiplus::Color(255, 255, 255);
+    else borderColor = Gdiplus::Color(0, 0, 0);
+    setAnimationColor(r, g, b);
+    renderAnimation(curFrame);
+    InvalidateRect(mainWindow, &backRect, FALSE);
+}

example/win32Player/rlottiePlayer.h

@@ -0,0 +1,32 @@
+#pragma once
+
+#include "resource.h"
+#include "animation.h"
+#include <Commdlg.h>                    // OPENFILENAME
+#include "atlconv.h"                    // String cast. (ex. LPWSTR <-> LPSTR)
+#include <gdiplus.h>
+#include <CommCtrl.h>                    // slider handle
+
+// interval
+#define UI_INTERVAL 20
+
+// length
+#define WND_WIDTH 1000
+#define WND_HEIGHT 800
+#define BMP_MAX_LEN	500
+#define BTN_WIDTH 100
+#define BTN_HEIGHT 30
+#define TEXT_HEIGHT 20
+#define SLIDER_HEIGHT 25
+#define RDOBTN_WIDTH 60
+#define RDOBTN_HEIGHT 20
+#define RESIZE_LENGTH 10
+
+typedef struct RlottieBitmap
+{
+	Gdiplus::Bitmap* image = NULL;
+	int x = 0;
+	int y = 0;
+	unsigned int width = 0;
+	unsigned int height = 0;
+}RlottieBitmap;

example/win32Player/rlottiePlayer.sln

@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30503.244
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "rlottiePlayer", "rlottiePlayer.vcxproj", "{CC7AD634-4D29-4D8E-997D-9727DABB44EE}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{CC7AD634-4D29-4D8E-997D-9727DABB44EE}.Debug|x64.ActiveCfg = Debug|x64
+		{CC7AD634-4D29-4D8E-997D-9727DABB44EE}.Debug|x64.Build.0 = Debug|x64
+		{CC7AD634-4D29-4D8E-997D-9727DABB44EE}.Debug|x86.ActiveCfg = Debug|Win32
+		{CC7AD634-4D29-4D8E-997D-9727DABB44EE}.Debug|x86.Build.0 = Debug|Win32
+		{CC7AD634-4D29-4D8E-997D-9727DABB44EE}.Release|x64.ActiveCfg = Release|x64
+		{CC7AD634-4D29-4D8E-997D-9727DABB44EE}.Release|x64.Build.0 = Release|x64
+		{CC7AD634-4D29-4D8E-997D-9727DABB44EE}.Release|x86.ActiveCfg = Release|Win32
+		{CC7AD634-4D29-4D8E-997D-9727DABB44EE}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {57EEA15F-28FB-4C19-96B4-7B62BFA0CFE5}
+	EndGlobalSection
+EndGlobal

example/win32Player/rlottiePlayer.vcxproj

@@ -0,0 +1,166 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{cc7ad634-4d29-4d8e-997d-9727dabb44ee}</ProjectGuid>
+    <RootNamespace>rlottiePlayer</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+    <IncludePath>..\..\inc;$(IncludePath)</IncludePath>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+    <IncludePath>..\..\inc;$(IncludePath)</IncludePath>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;rlottie.lib;gdiplus.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;rlottie.lib;gdiplus.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="animation.h" />
+    <ClInclude Include="framework.h" />
+    <ClInclude Include="Resource.h" />
+    <ClInclude Include="rlottiePlayer.h" />
+    <ClInclude Include="targetver.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="rlottiePlayer.cpp" />
+    <ClCompile Include="Source.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="rlottiePlayer.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <Image Include="rlottiePlayer.ico" />
+    <Image Include="small.ico" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

example/win32Player/rlottiePlayer.vcxproj.filters

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="framework.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="targetver.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="Resource.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="rlottiePlayer.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="animation.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="rlottiePlayer.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="Source.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="rlottiePlayer.rc">
+      <Filter>Resource Files</Filter>
+    </ResourceCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <Image Include="small.ico">
+      <Filter>Resource Files</Filter>
+    </Image>
+    <Image Include="rlottiePlayer.ico">
+      <Filter>Resource Files</Filter>
+    </Image>
+  </ItemGroup>
+</Project>

example/win32Player/rlottiePlayer.vcxproj.user

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>

example/win32Player/targetver.h

@@ -0,0 +1,6 @@
+#pragma once
+
+// // Including SDKDDKVer.h defines the highest available Windows platform.
+// If you wish to build your application for a previous Windows platform, include WinSDKVer.h and
+// set the _WIN32_WINNT macro to the platform you wish to support before including SDKDDKVer.h.
+#include <SDKDDKVer.h>

format

@@ -0,0 +1 @@
+git diff -U0 --no-color HEAD^ | clang-format-diff -i -p1

inc/rlottie.h

@@ -108,11 +108,11 @@ enum class Property {
     FillOpacity,   /*!< Opacity property of Fill object , value type is float [ 0 .. 100] */
     StrokeColor,   /*!< Color property of Stroke object , value type is rlottie::Color */
     StrokeOpacity, /*!< Opacity property of Stroke object , value type is float [ 0 .. 100] */
-    StrokeWidth,   /*!< stroke with property of Stroke object , value type is float */
+    StrokeWidth,   /*!< stroke width property of Stroke object , value type is float */
     TrAnchor,      /*!< Transform Anchor property of Layer and Group object , value type is rlottie::Point */
     TrPosition,    /*!< Transform Position property of Layer and Group object , value type is rlottie::Point */
     TrScale,       /*!< Transform Scale property of Layer and Group object , value type is rlottie::Size. range[0 ..100] */
-    TrRotation,    /*!< Transform Scale property of Layer and Group object , value type is float. range[0 .. 360] in degrees*/
+    TrRotation,    /*!< Transform Rotation property of Layer and Group object , value type is float. range[0 .. 360] in degrees*/
     TrOpacity      /*!< Transform Opacity property of Layer and Group object , value type is float [ 0 .. 100] */
 };
 

inc/rlottie_capi.h

@@ -25,7 +25,7 @@
 
 #include <stddef.h>
 #include <stdint.h>
-#include <rlottiecommon.h>
+#include "rlottiecommon.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -46,6 +46,36 @@ typedef enum {
 
 typedef struct Lottie_Animation_S Lottie_Animation;
 
+/**
+ *  @brief Runs lottie initialization code when rlottie library is loaded
+ * dynamically.
+ *
+ *
+ * This api should be called before any other api when rlottie library
+ * is loaded using dlopen() or equivalent.
+ *
+ *  @see lottie_shutdown()
+ *
+ *  @ingroup Lottie_Animation
+ *  @internal
+ */
+RLOTTIE_API void lottie_init(void);
+
+/**
+ *  @brief Runs lottie teardown code when rlottie library  is loaded
+ * dynamically.
+ *
+ * This api should be called before unloading the rlottie library for
+ * proper cleanup of the resource without doing so will result in undefined
+ * behaviour.
+ *
+ *  @see lottie_init()
+ *
+ *  @ingroup Lottie_Animation
+ *  @internal
+ */
+RLOTTIE_API void lottie_shutdown(void);
+
 /**
  *  @brief Constructs an animation object from file path.
  *
@@ -274,6 +304,23 @@ RLOTTIE_API void lottie_animation_property_override(Lottie_Animation *animation,
  * */
 RLOTTIE_API const LOTMarkerList* lottie_animation_get_markerlist(Lottie_Animation *animation);
 
+/**
+ *  @brief Configures rlottie model cache policy.
+ *
+ *  Provides Library level control to configure model cache
+ *  policy. Setting it to 0 will disable
+ *  the cache as well as flush all the previously cached content.
+ *
+ *  @param[in] cacheSize  Maximum Model Cache size.
+ *
+ *  @note to disable Caching configure with 0 size.
+ *  @note to flush the current Cache content configure it with 0 and
+ *        then reconfigure with the new size.
+ *
+ *  @internal
+ */
+RLOTTIE_API void lottie_configure_model_cache_size(size_t cacheSize);
+
 #ifdef __cplusplus
 }
 #endif

packaging/rlottie.spec

@@ -10,7 +10,7 @@ Version:        0.2
 Release:        %mkrel %{?git:-c git%{git}} %{rel}
 Summary:        Platform independent standalone library that plays Lottie Animation
 Group:          System/Libraries
-License:        MIT and BSD
+License:        MIT and BSD and MPL-2.0
 URL:            http://www.tizen.org/
 Source0:        https://github.com/Samsung/rlottie/archive/master/%{name}-%{version}%{?git:-git%{git}}.tar.gz
 

src/binding/c/lottieanimation_capi.cpp

@@ -26,6 +26,9 @@
 
 using namespace rlottie;
 
+extern void lottie_init_impl();
+extern void lottie_shutdown_impl();
+
 extern "C" {
 #include <string.h>
 #include <stdarg.h>
@@ -38,6 +41,34 @@ struct Lottie_Animation_S
     LOTMarkerList                  *mMarkerList;
 };
 
+static uint32_t _lottie_lib_ref_count = 0;
+
+RLOTTIE_API void lottie_init(void)
+{
+    if (_lottie_lib_ref_count > 0) {
+        _lottie_lib_ref_count++;
+        return;
+    }
+    lottie_init_impl();
+
+    _lottie_lib_ref_count = 1;
+}
+
+RLOTTIE_API void lottie_shutdown(void)
+{
+    if (_lottie_lib_ref_count <= 0) {
+        // lottie_init() is not called before lottie_shutdown()
+        // or multiple shutdown is getting called.
+        return;
+    }
+
+    _lottie_lib_ref_count--;
+
+    if (_lottie_lib_ref_count == 0) {
+        lottie_shutdown_impl();
+    }
+}
+
 RLOTTIE_API Lottie_Animation_S *lottie_animation_from_file(const char *path)
 {
     if (auto animation = Animation::loadFromFile(path) ) {
@@ -275,4 +306,10 @@ lottie_animation_get_markerlist(Lottie_Animation_S *animation)
    return (const LOTMarkerList*)animation->mMarkerList;
 }
 
+RLOTTIE_API void
+lottie_configure_model_cache_size(size_t cacheSize)
+{
+   rlottie::configureModelCacheSize(cacheSize);
+}
+
 }

src/lottie/lottieanimation.cpp

@@ -178,20 +178,29 @@ class RenderTaskScheduler {
         for (unsigned n = 0; n != _count; ++n) {
             _threads.emplace_back([&, n] { run(n); });
         }
+
+        IsRunning = true;
     }
 
 public:
+    static bool IsRunning;
+
     static RenderTaskScheduler &instance()
     {
         static RenderTaskScheduler singleton;
         return singleton;
     }
 
-    ~RenderTaskScheduler()
+    ~RenderTaskScheduler() { stop(); }
-    {
-        for (auto &e : _q) e.done();
 
-        for (auto &e : _threads) e.join();
+    void stop()
+    {
+        if (IsRunning) {
+            IsRunning = false;
+
+            for (auto &e : _q) e.done();
+            for (auto &e : _threads) e.join();
+        }
     }
 
     std::future<Surface> process(SharedRenderTask task)
@@ -214,12 +223,16 @@ public:
 #else
 class RenderTaskScheduler {
 public:
+    static bool IsRunning;
+
     static RenderTaskScheduler &instance()
     {
         static RenderTaskScheduler singleton;
         return singleton;
     }
 
+    void stop() {}
+
     std::future<Surface> process(SharedRenderTask task)
     {
         auto result = task->playerImpl->render(task->frameNo, task->surface,
@@ -228,8 +241,11 @@ public:
         return std::move(task->receiver);
     }
 };
+
 #endif
 
+bool RenderTaskScheduler::IsRunning{false};
+
 std::future<Surface> AnimationImpl::renderAsync(size_t    frameNo,
                                                 Surface &&surface,
                                                 bool      keepAspectRatio)
@@ -441,6 +457,29 @@ void Surface::setDrawRegion(size_t x, size_t y, size_t width, size_t height)
     mDrawArea.h = height;
 }
 
+namespace {
+void lottieShutdownRenderTaskScheduler()
+{
+    if (RenderTaskScheduler::IsRunning) {
+        RenderTaskScheduler::instance().stop();
+    }
+}
+}  // namespace
+
+// private apis exposed to c interface
+void lottie_init_impl()
+{
+    // do nothing for now.
+}
+
+extern void lottieShutdownRasterTaskScheduler();
+
+void lottie_shutdown_impl()
+{
+    lottieShutdownRenderTaskScheduler();
+    lottieShutdownRasterTaskScheduler();
+}
+
 #ifdef LOTTIE_LOGGING_SUPPORT
 void initLogging()
 {

src/lottie/lottiefiltermodel.h

@@ -238,7 +238,7 @@ class FilterData {
 public:
     void addValue(LOTVariant& value)
     {
-        uint index = static_cast<uint>(value.property());
+        uint32_t index = static_cast<uint32_t>(value.property());
         if (mBitset.test(index)) {
             std::replace_if(mFilters.begin(), mFilters.end(),
                             [&value](const LOTVariant& e) {
@@ -253,7 +253,7 @@ public:
 
     void removeValue(LOTVariant& value)
     {
-        uint index = static_cast<uint>(value.property());
+        uint32_t index = static_cast<uint32_t>(value.property());
         if (mBitset.test(index)) {
             mBitset.reset(index);
             mFilters.erase(std::remove_if(mFilters.begin(), mFilters.end(),
@@ -266,7 +266,7 @@ public:
     }
     bool hasFilter(rlottie::Property prop) const
     {
-        return mBitset.test(static_cast<uint>(prop));
+        return mBitset.test(static_cast<uint32_t>(prop));
     }
     model::Color color(rlottie::Property prop, int frame) const
     {

src/lottie/lottieitem.cpp

@@ -149,9 +149,9 @@ bool renderer::Composition::update(int frameNo, const VSize &size,
 
 bool renderer::Composition::render(const rlottie::Surface &surface)
 {
-    mSurface.reset(reinterpret_cast<uchar *>(surface.buffer()),
+    mSurface.reset(reinterpret_cast<uint8_t *>(surface.buffer()),
-                   uint(surface.width()), uint(surface.height()),
+                   uint32_t(surface.width()), uint32_t(surface.height()),
-                   uint(surface.bytesPerLine()),
+                   uint32_t(surface.bytesPerLine()),
                    VBitmap::Format::ARGB32_Premultiplied);
 
     /* schedule all preprocess task for this frame at once.
@@ -200,7 +200,7 @@ VRle renderer::Mask::rle()
 {
     if (!vCompare(mCombinedAlpha, 1.0f)) {
         VRle obj = mRasterizer.rle();
-        obj *= uchar(mCombinedAlpha * 255);
+        obj *= uint8_t(mCombinedAlpha * 255);
         return obj;
     } else {
         return mRasterizer.rle();
@@ -343,7 +343,7 @@ renderer::Layer::Layer(model::Layer *layerData) : mLayerData(layerData)
         mLayerMask = std::make_unique<renderer::LayerMask>(mLayerData);
 }
 
-bool renderer::Layer::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+bool renderer::Layer::resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                                      LOTVariant &value)
 {
     if (!keyPath.matches(name(), depth)) {
@@ -359,12 +359,12 @@ bool renderer::Layer::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
     return true;
 }
 
-bool renderer::ShapeLayer::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+bool renderer::ShapeLayer::resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                                           LOTVariant &value)
 {
     if (renderer::Layer::resolveKeyPath(keyPath, depth, value)) {
         if (keyPath.propagate(name(), depth)) {
-            uint newDepth = keyPath.nextDepth(name(), depth);
+            uint32_t newDepth = keyPath.nextDepth(name(), depth);
             mRoot->resolveKeyPath(keyPath, newDepth, value);
         }
         return true;
@@ -372,12 +372,12 @@ bool renderer::ShapeLayer::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
     return false;
 }
 
-bool renderer::CompLayer::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+bool renderer::CompLayer::resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                                          LOTVariant &value)
 {
     if (renderer::Layer::resolveKeyPath(keyPath, depth, value)) {
         if (keyPath.propagate(name(), depth)) {
-            uint newDepth = keyPath.nextDepth(name(), depth);
+            uint32_t newDepth = keyPath.nextDepth(name(), depth);
             for (const auto &layer : mLayers) {
                 layer->resolveKeyPath(keyPath, newDepth, value);
             }
@@ -507,7 +507,7 @@ void renderer::CompLayer::render(VPainter *painter, const VRle &inheritMask,
             renderHelper(&srcPainter, inheritMask, matteRle, cache);
             srcPainter.end();
             painter->drawBitmap(VPoint(), srcBitmap,
-                                uchar(combinedAlpha() * 255.0f));
+                                uint8_t(combinedAlpha() * 255.0f));
             cache.release_surface(srcBitmap);
         } else {
             renderHelper(painter, inheritMask, matteRle, cache);
@@ -597,11 +597,21 @@ void renderer::CompLayer::renderMatteLayer(VPainter *painter, const VRle &mask,
         srcBitmap.updateLuma();
     }
 
+    auto clip = layerPainter.clipBoundingRect();
+
+    // if the layer has only one renderer then use it as the clip rect
+    // when blending 2 buffer and copy back to final buffer to avoid
+    // unnecessary pixel processing.
+    if (layer->renderList().size() == 1)
+    {
+        clip = layer->renderList()[0]->rle().boundingRect();
+    }
+
     // 2.3 draw src buffer as mask
-    layerPainter.drawBitmap(VPoint(), srcBitmap);
+    layerPainter.drawBitmap(clip, srcBitmap, clip);
     layerPainter.end();
     // 3. draw the result buffer into painter
-    painter->drawBitmap(VPoint(), layerBitmap);
+    painter->drawBitmap(clip, layerBitmap, clip);
 
     cache.release_surface(srcBitmap);
     cache.release_surface(layerBitmap);
@@ -853,7 +863,7 @@ renderer::DrawableList renderer::ShapeLayer::renderList()
     return {mDrawableList.data(), mDrawableList.size()};
 }
 
-bool renderer::Group::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+bool renderer::Group::resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                                      LOTVariant &value)
 {
     if (!keyPath.skip(name())) {
@@ -870,7 +880,7 @@ bool renderer::Group::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
     }
 
     if (keyPath.propagate(name(), depth)) {
-        uint newDepth = keyPath.nextDepth(name(), depth);
+        uint32_t newDepth = keyPath.nextDepth(name(), depth);
         for (auto &child : mContents) {
             child->resolveKeyPath(keyPath, newDepth, value);
         }
@@ -878,7 +888,7 @@ bool renderer::Group::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
     return true;
 }
 
-bool renderer::Fill::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+bool renderer::Fill::resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                                     LOTVariant &value)
 {
     if (!keyPath.matches(mModel.name(), depth)) {
@@ -893,7 +903,7 @@ bool renderer::Fill::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
     return false;
 }
 
-bool renderer::Stroke::resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+bool renderer::Stroke::resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                                       LOTVariant &value)
 {
     if (!keyPath.matches(mModel.name(), depth)) {
@@ -1097,7 +1107,7 @@ void renderer::Rect::updatePath(VPath &path, int frameNo)
 {
     VPointF pos = mData->mPos.value(frameNo);
     VPointF size = mData->mSize.value(frameNo);
-    float   roundness = mData->mRound.value(frameNo);
+    float   roundness = mData->roundness(frameNo);
     VRectF  r(pos.x() - size.x() / 2, pos.y() - size.y() / 2, size.x(),
              size.y());
 

src/lottie/lottieitem.h

@@ -80,7 +80,7 @@ namespace renderer {
 
 using DrawableList = VSpan<VDrawable *>;
 
-enum class DirtyFlagBit : uchar {
+enum class DirtyFlagBit : uint8_t {
     None = 0x00,
     Matrix = 0x01,
     Alpha = 0x02,
@@ -239,8 +239,8 @@ public:
     std::vector<LOTMask> &       cmasks() { return mCApiData->mMasks; }
     std::vector<LOTNode *> &     cnodes() { return mCApiData->mCNodeList; }
     const char *                 name() const { return mLayerData->name(); }
-    virtual bool                 resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+    virtual bool resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
-                                                LOTVariant &value);
+                                LOTVariant &value);
 
 protected:
     virtual void   preprocessStage(const VRect &clip) = 0;
@@ -275,7 +275,7 @@ public:
     void render(VPainter *painter, const VRle &mask, const VRle &matteRle,
                 SurfaceCache &cache) final;
     void buildLayerNode() final;
-    bool resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+    bool resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                         LOTVariant &value) override;
 
 protected:
@@ -317,7 +317,7 @@ public:
     explicit ShapeLayer(model::Layer *layerData, VArenaAlloc *allocator);
     DrawableList renderList() final;
     void         buildLayerNode() final;
-    bool         resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+    bool         resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                                 LOTVariant &value) override;
 
 protected:
@@ -355,13 +355,13 @@ private:
 
 class Object {
 public:
-    enum class Type : uchar { Unknown, Group, Shape, Paint, Trim };
+    enum class Type : uint8_t { Unknown, Group, Shape, Paint, Trim };
     virtual ~Object() = default;
     Object &     operator=(Object &&) noexcept = delete;
     virtual void update(int frameNo, const VMatrix &parentMatrix,
                         float parentAlpha, const DirtyFlag &flag) = 0;
     virtual void renderList(std::vector<VDrawable *> &) {}
-    virtual bool resolveKeyPath(LOTKeyPath &, uint, LOTVariant &)
+    virtual bool resolveKeyPath(LOTKeyPath &, uint32_t, LOTVariant &)
     {
         return false;
     }
@@ -387,7 +387,7 @@ public:
         static const char *TAG = "__";
         return mModel.hasModel() ? mModel.name() : TAG;
     }
-    bool resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+    bool resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                         LOTVariant &value) override;
 
 protected:
@@ -449,7 +449,7 @@ protected:
     {
         return (mData->mPos.changed(prevFrame, curFrame) ||
                 mData->mSize.changed(prevFrame, curFrame) ||
-                mData->mRound.changed(prevFrame, curFrame));
+                mData->roundnessChanged(prevFrame, curFrame));
     }
 };
 
@@ -532,7 +532,7 @@ public:
 
 protected:
     bool updateContent(int frameNo, const VMatrix &matrix, float alpha) final;
-    bool resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+    bool resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                         LOTVariant &value) final;
 
 private:
@@ -557,7 +557,7 @@ public:
 
 protected:
     bool updateContent(int frameNo, const VMatrix &matrix, float alpha) final;
-    bool resolveKeyPath(LOTKeyPath &keyPath, uint depth,
+    bool resolveKeyPath(LOTKeyPath &keyPath, uint32_t depth,
                         LOTVariant &value) final;
 
 private:

src/lottie/lottieitem_capi.cpp

@@ -88,7 +88,7 @@ void renderer::Layer::buildLayerNode()
         mCApiData = std::make_unique<renderer::CApiData>();
         clayer().keypath = name();
     }
-    if (complexContent()) clayer().mAlpha = uchar(combinedAlpha() * 255.f);
+    if (complexContent()) clayer().mAlpha = uint8_t(combinedAlpha() * 255.f);
     clayer().mVisible = visible();
     // update matte
     if (hasMatte()) {
@@ -121,10 +121,10 @@ void renderer::Layer::buildLayerNode()
             auto        ptPtr = reinterpret_cast<const float *>(pts.data());
             auto        elmPtr = reinterpret_cast<const char *>(elm.data());
             cNode.mPath.ptPtr = ptPtr;
-            cNode.mPath.ptCount = pts.size();
+            cNode.mPath.ptCount = 2 * pts.size();
             cNode.mPath.elmPtr = elmPtr;
             cNode.mPath.elmCount = elm.size();
-            cNode.mAlpha = uchar(mask.mCombinedAlpha * 255.0f);
+            cNode.mAlpha = uint8_t(mask.mCombinedAlpha * 255.0f);
             switch (mask.maskMode()) {
             case model::Mask::Mode::Add:
                 cNode.mMode = MaskAdd;
@@ -196,7 +196,7 @@ void renderer::ImageLayer::buildLayerNode()
 
         // Alpha calculation already combined.
         lotDrawable->mCNode->mImageInfo.mAlpha =
-            uchar(lotDrawable->mBrush.mTexture->mAlpha);
+            uint8_t(lotDrawable->mBrush.mTexture->mAlpha);
 
         cnodes().push_back(lotDrawable->mCNode.get());
     }
@@ -216,7 +216,7 @@ static void updateGStops(LOTNode *n, const VGradient *grad)
     LOTGradientStop *ptr = n->mGradient.stopPtr;
     for (const auto &i : grad->mStops) {
         ptr->pos = i.first;
-        ptr->a = uchar(i.second.alpha() * grad->alpha());
+        ptr->a = uint8_t(i.second.alpha() * grad->alpha());
         ptr->r = i.second.red();
         ptr->g = i.second.green();
         ptr->b = i.second.blue();

src/lottie/lottiekeypath.cpp

@@ -12,7 +12,7 @@ LOTKeyPath::LOTKeyPath(const std::string &keyPath)
     }
 }
 
-bool LOTKeyPath::matches(const std::string &key, uint depth)
+bool LOTKeyPath::matches(const std::string &key, uint32_t depth)
 {
     if (skip(key)) {
         // This is an object we programatically create.
@@ -28,7 +28,7 @@ bool LOTKeyPath::matches(const std::string &key, uint depth)
     return false;
 }
 
-uint LOTKeyPath::nextDepth(const std::string key, uint depth)
+uint32_t LOTKeyPath::nextDepth(const std::string key, uint32_t depth)
 {
     if (skip(key)) {
         // If it's a container then we added programatically and it isn't a part
@@ -51,7 +51,7 @@ uint LOTKeyPath::nextDepth(const std::string key, uint depth)
     return depth;
 }
 
-bool LOTKeyPath::fullyResolvesTo(const std::string key, uint depth)
+bool LOTKeyPath::fullyResolvesTo(const std::string key, uint32_t depth)
 {
     if (depth > mKeys.size()) {
         return false;

src/lottie/lottiekeypath.h

@@ -30,19 +30,19 @@
 class LOTKeyPath {
 public:
     LOTKeyPath(const std::string &keyPath);
-    bool matches(const std::string &key, uint depth);
+    bool     matches(const std::string &key, uint32_t depth);
-    uint nextDepth(const std::string key, uint depth);
+    uint32_t nextDepth(const std::string key, uint32_t depth);
-    bool fullyResolvesTo(const std::string key, uint depth);
+    bool     fullyResolvesTo(const std::string key, uint32_t depth);
 
-    bool propagate(const std::string key, uint depth)
+    bool propagate(const std::string key, uint32_t depth)
     {
         return skip(key) ? true : (depth < size()) || (mKeys[depth] == "**");
     }
     bool skip(const std::string &key) const { return key == "__"; }
 
 private:
-    bool   isGlobstar(uint depth) const { return mKeys[depth] == "**"; }
+    bool   isGlobstar(uint32_t depth) const { return mKeys[depth] == "**"; }
-    bool   isGlob(uint depth) const { return mKeys[depth] == "*"; }
+    bool   isGlob(uint32_t depth) const { return mKeys[depth] == "*"; }
     bool   endsWithGlobstar() const { return mKeys.back() == "**"; }
     size_t size() const { return mKeys.size() - 1; }
 

src/lottie/lottiemodel.cpp

@@ -205,7 +205,7 @@ void model::Dash::getDashInfo(int frameNo, std::vector<float> &result) const
 {
     result.clear();
 
-    if (mData.empty()) return;
+    if (mData.size() <= 1) return;
 
     if (result.capacity() < mData.size()) result.reserve(mData.size() + 1);
 
@@ -256,52 +256,12 @@ void model::Gradient::populate(VGradientStops &stops, int frameNo)
     auto   opacityArraySize = size - colorPoints * 4;
     float *opacityPtr = ptr + (colorPoints * 4);
     stops.clear();
-    size_t j = 0;
     for (int i = 0; i < colorPoints; i++) {
         float        colorStop = ptr[0];
         model::Color color = model::Color(ptr[1], ptr[2], ptr[3]);
         if (opacityArraySize) {
-            if (j == opacityArraySize) {
+            float opacity = getOpacityAtPosition(opacityPtr, opacityArraySize, colorStop);
-                // already reached the end
+            stops.push_back(std::make_pair(colorStop, color.toColor(opacity)));
-                float stop1 = opacityPtr[j - 4];
-                float op1 = opacityPtr[j - 3];
-                float stop2 = opacityPtr[j - 2];
-                float op2 = opacityPtr[j - 1];
-                if (colorStop > stop2) {
-                    stops.push_back(
-                        std::make_pair(colorStop, color.toColor(op2)));
-                } else {
-                    float progress = (colorStop - stop1) / (stop2 - stop1);
-                    float opacity = op1 + progress * (op2 - op1);
-                    stops.push_back(
-                        std::make_pair(colorStop, color.toColor(opacity)));
-                }
-                continue;
-            }
-            for (; j < opacityArraySize; j += 2) {
-                float opacityStop = opacityPtr[j];
-                if (opacityStop < colorStop) {
-                    // add a color using opacity stop
-                    stops.push_back(std::make_pair(
-                        opacityStop, color.toColor(opacityPtr[j + 1])));
-                    continue;
-                }
-                // add a color using color stop
-                if (j == 0) {
-                    stops.push_back(std::make_pair(
-                        colorStop, color.toColor(opacityPtr[j + 1])));
-                } else {
-                    float progress = (colorStop - opacityPtr[j - 2]) /
-                                     (opacityPtr[j] - opacityPtr[j - 2]);
-                    float opacity =
-                        opacityPtr[j - 1] +
-                        progress * (opacityPtr[j + 1] - opacityPtr[j - 1]);
-                    stops.push_back(
-                        std::make_pair(colorStop, color.toColor(opacity)));
-                }
-                j += 2;
-                break;
-            }
         } else {
             stops.push_back(std::make_pair(colorStop, color.toColor()));
         }
@@ -309,6 +269,21 @@ void model::Gradient::populate(VGradientStops &stops, int frameNo)
     }
 }
 
+float model::Gradient::getOpacityAtPosition(float *opacities, size_t opacityArraySize, float position)
+{
+    for (size_t i = 2; i < opacityArraySize; i += 2)
+    {
+        float lastPosition = opacities[i - 2];
+        float thisPosition = opacities[i];
+        if (opacities[i] >= position) {
+            float progress = (position - lastPosition) / (thisPosition - lastPosition);
+            progress = progress < 0.0f ? 0.0f : 1.0f < progress ? 1.0f : progress; //clamp(progress, 0, 1)
+            return opacities[i - 1] + progress * (opacities[i + 1] - opacities[i - 1]);
+        }
+    }
+    return 0.0f;
+}
+
 void model::Gradient::update(std::unique_ptr<VGradient> &grad, int frameNo)
 {
     bool init = false;

src/lottie/lottiemodel.h

@@ -57,9 +57,9 @@ inline T lerp(const T &start, const T &end, float t)
 
 namespace model {
 
-enum class MatteType : uchar { None = 0, Alpha = 1, AlphaInv, Luma, LumaInv };
+enum class MatteType : uint8_t { None = 0, Alpha = 1, AlphaInv, Luma, LumaInv };
 
-enum class BlendMode : uchar {
+enum class BlendMode : uint8_t {
     Normal = 0,
     Multiply = 1,
     Screen = 2,
@@ -72,8 +72,8 @@ public:
     Color(float red, float green, float blue) : r(red), g(green), b(blue) {}
     VColor toColor(float a = 1)
     {
-        return VColor(uchar(255 * r), uchar(255 * g), uchar(255 * b),
+        return VColor(uint8_t(255 * r), uint8_t(255 * g), uint8_t(255 * b),
-                      uchar(255 * a));
+                      uint8_t(255 * a));
     }
     friend inline Color operator+(const Color &c1, const Color &c2);
     friend inline Color operator-(const Color &c1, const Color &c2);
@@ -111,6 +111,11 @@ struct PathData {
                      VPath &result)
     {
         result.reset();
+        // test for empty animation data.
+        if (start.mPoints.empty() || end.mPoints.empty())
+        {
+            return;
+        }
         auto size = std::min(start.mPoints.size(), end.mPoints.size());
         /* reserve exact memory requirement at once
          * ptSize = size + 1(size + close)
@@ -440,7 +445,8 @@ public:
         Path,
         Polystar,
         Trim,
-        Repeater
+        Repeater,
+        RoundedCorner
     };
 
     explicit Object(Object::Type type) : mPtr(nullptr)
@@ -661,7 +667,7 @@ public:
 
 class Layer : public Group {
 public:
-    enum class Type : uchar {
+    enum class Type : uint8_t {
         Precomp = 0,
         Solid = 1,
         Image = 2,
@@ -670,6 +676,7 @@ public:
         Text = 5
     };
     Layer() : Group(Object::Type::Layer) {}
+    bool    hasRoundedCorner() const noexcept { return mHasRoundedCorner; }
     bool    hasPathOperator() const noexcept { return mHasPathOperator; }
     bool    hasGradient() const noexcept { return mHasGradient; }
     bool    hasMask() const noexcept { return mHasMask; }
@@ -680,7 +687,10 @@ public:
     int     inFrame() const noexcept { return mInFrame; }
     int     outFrame() const noexcept { return mOutFrame; }
     int     startFrame() const noexcept { return mStartFrame; }
-    Color   solidColor() const noexcept { return mExtra->mSolidColor; }
+    Color   solidColor() const noexcept
+    {
+        return mExtra ? mExtra->mSolidColor : Color();
+    }
     bool    autoOrient() const noexcept { return mAutoOrient; }
     int     timeRemap(int frameNo) const;
     VSize   layerSize() const { return mLayerSize; }
@@ -694,10 +704,7 @@ public:
     {
         return mTransform ? mTransform->opacity(frameNo) : 1.0f;
     }
-    Asset *asset() const
+    Asset *asset() const { return mExtra ? mExtra->mAsset : nullptr; }
-    {
-        return (mExtra && mExtra->mAsset) ? mExtra->mAsset : nullptr;
-    }
     struct Extra {
         Color               mSolidColor;
         std::string         mPreCompRefId;
@@ -717,6 +724,7 @@ public:
     MatteType mMatteType{MatteType::None};
     Type      mLayerType{Layer::Type::Null};
     BlendMode mBlendMode{BlendMode::Normal};
+    bool      mHasRoundedCorner{false};
     bool      mHasPathOperator{false};
     bool      mHasMask{false};
     bool      mHasRepeater{false};
@@ -813,6 +821,7 @@ public:
 
 private:
     void populate(VGradientStops &stops, int frameNo);
+    float getOpacityAtPosition(float *opacities, size_t opacityArraySize, float position);
 
 public:
     int                      mGradientType{1};    /* "t" Linear=1 , Radial = 2*/
@@ -893,11 +902,30 @@ public:
     Property<PathData> mShape;
 };
 
+class RoundedCorner : public Object {
+public:
+    RoundedCorner() : Object(Object::Type::RoundedCorner) {}
+    float radius(int frameNo) const { return mRadius.value(frameNo);}
+public:
+    Property<float>   mRadius{0};
+};
+
 class Rect : public Shape {
 public:
     Rect() : Shape(Object::Type::Rect) {}
+    float roundness(int frameNo)
+    {
+        return mRoundedCorner ? mRoundedCorner->radius(frameNo) :
+                                mRound.value(frameNo);
+    }
 
+    bool roundnessChanged(int prevFrame, int curFrame)
+    {
+        return mRoundedCorner ? mRoundedCorner->mRadius.changed(prevFrame, curFrame) :
+                        mRound.changed(prevFrame, curFrame);
+    }
 public:
+    RoundedCorner*    mRoundedCorner{nullptr};
     Property<VPointF> mPos;
     Property<VPointF> mSize;
     Property<float>   mRound{0};

src/lottie/lottieparser.cpp

@@ -145,6 +145,10 @@ public:
         return true;
     }
 
+    void Error()
+    {
+        st_ = kError;
+    }
 protected:
     explicit LookaheadParserHandler(char *str);
 
@@ -191,6 +195,7 @@ public:
     int          GetInt();
     double       GetDouble();
     const char * GetString();
+    std::string  GetStringObject();
     bool         GetBool();
     void         GetNull();
 
@@ -228,6 +233,9 @@ public:
     model::Object *  parseObjectTypeAttr();
     model::Object *  parseGroupObject();
     model::Rect *    parseRectObject();
+    model::RoundedCorner *    parseRoundedCorner();
+    void updateRoundedCorner(model::Group *parent, model::RoundedCorner *rc);
+
     model::Ellipse * parseEllipseObject();
     model::Path *    parseShapeObject();
     model::Polystar *parsePolystarObject();
@@ -396,7 +404,6 @@ bool LottieParserImpl::EnterObject()
 {
     if (st_ != kEnteringObject) {
         st_ = kError;
-        RAPIDJSON_ASSERT(false);
         return false;
     }
 
@@ -408,7 +415,6 @@ bool LottieParserImpl::EnterArray()
 {
     if (st_ != kEnteringArray) {
         st_ = kError;
-        RAPIDJSON_ASSERT(false);
         return false;
     }
 
@@ -438,7 +444,6 @@ const char *LottieParserImpl::NextObjectKey()
     }
 
     if (st_ != kExitingObject) {
-        RAPIDJSON_ASSERT(false);
         st_ = kError;
         return nullptr;
     }
@@ -462,7 +467,6 @@ bool LottieParserImpl::NextArrayValue()
     }
 
     if (st_ == kError || st_ == kHasKey) {
-        RAPIDJSON_ASSERT(false);
         st_ = kError;
         return false;
     }
@@ -474,7 +478,6 @@ int LottieParserImpl::GetInt()
 {
     if (st_ != kHasNumber || !v_.IsInt()) {
         st_ = kError;
-        RAPIDJSON_ASSERT(false);
         return 0;
     }
 
@@ -487,7 +490,6 @@ double LottieParserImpl::GetDouble()
 {
     if (st_ != kHasNumber) {
         st_ = kError;
-        RAPIDJSON_ASSERT(false);
         return 0.;
     }
 
@@ -500,7 +502,6 @@ bool LottieParserImpl::GetBool()
 {
     if (st_ != kHasBool) {
         st_ = kError;
-        RAPIDJSON_ASSERT(false);
         return false;
     }
 
@@ -523,7 +524,6 @@ const char *LottieParserImpl::GetString()
 {
     if (st_ != kHasString) {
         st_ = kError;
-        RAPIDJSON_ASSERT(false);
         return nullptr;
     }
 
@@ -532,6 +532,17 @@ const char *LottieParserImpl::GetString()
     return result;
 }
 
+std::string LottieParserImpl::GetStringObject()
+{
+    auto str = GetString();
+
+    if (str) {
+        return std::string(str);
+    }
+
+    return {};
+}
+
 void LottieParserImpl::SkipOut(int depth)
 {
     do {
@@ -540,7 +551,6 @@ void LottieParserImpl::SkipOut(int depth)
         } else if (st_ == kExitingArray || st_ == kExitingObject) {
             --depth;
         } else if (st_ == kError) {
-            RAPIDJSON_ASSERT(false);
             return;
         }
 
@@ -606,7 +616,6 @@ void LottieParserImpl::Skip(const char * /*key*/)
 
 model::BlendMode LottieParserImpl::getBlendMode()
 {
-    RAPIDJSON_ASSERT(PeekType() == kNumberType);
     auto mode = model::BlendMode::Normal;
 
     switch (GetInt()) {
@@ -643,7 +652,6 @@ void LottieParserImpl::resolveLayerRefs()
 
 void LottieParserImpl::parseComposition()
 {
-    RAPIDJSON_ASSERT(PeekType() == kObjectType);
     EnterObject();
     std::shared_ptr<model::Composition> sharedComposition =
         std::make_shared<model::Composition>();
@@ -651,22 +659,16 @@ void LottieParserImpl::parseComposition()
     compRef = comp;
     while (const char *key = NextObjectKey()) {
         if (0 == strcmp(key, "v")) {
-            RAPIDJSON_ASSERT(PeekType() == kStringType);
+            comp->mVersion = GetStringObject();
-            comp->mVersion = std::string(GetString());
         } else if (0 == strcmp(key, "w")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             comp->mSize.setWidth(GetInt());
         } else if (0 == strcmp(key, "h")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             comp->mSize.setHeight(GetInt());
         } else if (0 == strcmp(key, "ip")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             comp->mStartFrame = GetDouble();
         } else if (0 == strcmp(key, "op")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             comp->mEndFrame = GetDouble();
         } else if (0 == strcmp(key, "fr")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             comp->mFrameRate = GetDouble();
         } else if (0 == strcmp(key, "assets")) {
             parseAssets(comp);
@@ -686,6 +688,10 @@ void LottieParserImpl::parseComposition()
         // don't have a valid bodymovin header
         return;
     }
+    if (comp->mStartFrame > comp->mEndFrame) {
+        // reveresed animation? missing data?
+        return;
+    }
     if (!IsValid()) {
         return;
     }
@@ -700,20 +706,16 @@ void LottieParserImpl::parseComposition()
 
 void LottieParserImpl::parseMarker()
 {
-    RAPIDJSON_ASSERT(PeekType() == kObjectType);
     EnterObject();
     std::string comment;
     int         timeframe{0};
     int         duration{0};
     while (const char *key = NextObjectKey()) {
         if (0 == strcmp(key, "cm")) {
-            RAPIDJSON_ASSERT(PeekType() == kStringType);
+            comment = GetStringObject();
-            comment = std::string(GetString());
         } else if (0 == strcmp(key, "tm")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             timeframe = GetDouble();
         } else if (0 == strcmp(key, "dr")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             duration = GetDouble();
 
         } else {
@@ -729,7 +731,6 @@ void LottieParserImpl::parseMarker()
 
 void LottieParserImpl::parseMarkers()
 {
-    RAPIDJSON_ASSERT(PeekType() == kArrayType);
     EnterArray();
     while (NextArrayValue()) {
         parseMarker();
@@ -739,7 +740,6 @@ void LottieParserImpl::parseMarkers()
 
 void LottieParserImpl::parseAssets(model::Composition *composition)
 {
-    RAPIDJSON_ASSERT(PeekType() == kArrayType);
     EnterArray();
     while (NextArrayValue()) {
         auto asset = parseAsset();
@@ -815,8 +815,6 @@ static std::string toString(const T &value)
  */
 model::Asset *LottieParserImpl::parseAsset()
 {
-    RAPIDJSON_ASSERT(PeekType() == kObjectType);
-
     auto        asset = allocator().make<model::Asset>();
     std::string filename;
     std::string relativePath;
@@ -824,30 +822,24 @@ model::Asset *LottieParserImpl::parseAsset()
     EnterObject();
     while (const char *key = NextObjectKey()) {
         if (0 == strcmp(key, "w")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             asset->mWidth = GetInt();
         } else if (0 == strcmp(key, "h")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             asset->mHeight = GetInt();
         } else if (0 == strcmp(key, "p")) { /* image name */
             asset->mAssetType = model::Asset::Type::Image;
-            RAPIDJSON_ASSERT(PeekType() == kStringType);
+            filename = GetStringObject();
-            filename = std::string(GetString());
         } else if (0 == strcmp(key, "u")) { /* relative image path */
-            RAPIDJSON_ASSERT(PeekType() == kStringType);
+            relativePath = GetStringObject();
-            relativePath = std::string(GetString());
         } else if (0 == strcmp(key, "e")) { /* relative image path */
             embededResource = GetInt();
         } else if (0 == strcmp(key, "id")) { /* reference id*/
             if (PeekType() == kStringType) {
-                asset->mRefId = std::string(GetString());
+                asset->mRefId = GetStringObject();
             } else {
-                RAPIDJSON_ASSERT(PeekType() == kNumberType);
                 asset->mRefId = toString(GetInt());
             }
         } else if (0 == strcmp(key, "layers")) {
             asset->mAssetType = model::Asset::Type::Precomp;
-            RAPIDJSON_ASSERT(PeekType() == kArrayType);
             EnterArray();
             bool staticFlag = true;
             while (NextArrayValue()) {
@@ -886,7 +878,6 @@ void LottieParserImpl::parseLayers(model::Composition *comp)
     comp->mRootLayer->mLayerType = model::Layer::Type::Precomp;
     comp->mRootLayer->setName("__");
     bool staticFlag = true;
-    RAPIDJSON_ASSERT(PeekType() == kArrayType);
     EnterArray();
     while (NextArrayValue()) {
         auto layer = parseLayer();
@@ -900,6 +891,8 @@ void LottieParserImpl::parseLayers(model::Composition *comp)
 
 model::Color LottieParserImpl::toColor(const char *str)
 {
+    if (!str) return {};
+
     model::Color color;
     auto         len = strlen(str);
 
@@ -925,7 +918,6 @@ model::Color LottieParserImpl::toColor(const char *str)
 
 model::MatteType LottieParserImpl::getMatteType()
 {
-    RAPIDJSON_ASSERT(PeekType() == kNumberType);
     switch (GetInt()) {
     case 1:
         return model::MatteType::Alpha;
@@ -947,7 +939,6 @@ model::MatteType LottieParserImpl::getMatteType()
 
 model::Layer::Type LottieParserImpl::getLayerType()
 {
-    RAPIDJSON_ASSERT(PeekType() == kNumberType);
     switch (GetInt()) {
     case 0:
         return model::Layer::Type::Precomp;
@@ -979,7 +970,6 @@ model::Layer::Type LottieParserImpl::getLayerType()
  */
 model::Layer *LottieParserImpl::parseLayer()
 {
-    RAPIDJSON_ASSERT(PeekType() == kObjectType);
     model::Layer *layer = allocator().make<model::Layer>();
     curLayerRef = layer;
     bool ddd = true;
@@ -988,43 +978,33 @@ model::Layer *LottieParserImpl::parseLayer()
         if (0 == strcmp(key, "ty")) { /* Type of layer*/
             layer->mLayerType = getLayerType();
         } else if (0 == strcmp(key, "nm")) { /*Layer name*/
-            RAPIDJSON_ASSERT(PeekType() == kStringType);
             layer->setName(GetString());
         } else if (0 == strcmp(key, "ind")) { /*Layer index in AE. Used for
                                                  parenting and expressions.*/
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             layer->mId = GetInt();
         } else if (0 == strcmp(key, "ddd")) { /*3d layer */
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             ddd = GetInt();
         } else if (0 ==
                    strcmp(key,
                           "parent")) { /*Layer Parent. Uses "ind" of parent.*/
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             layer->mParentId = GetInt();
         } else if (0 == strcmp(key, "refId")) { /*preComp Layer reference id*/
-            RAPIDJSON_ASSERT(PeekType() == kStringType);
+            layer->extra()->mPreCompRefId = GetStringObject();
-            layer->extra()->mPreCompRefId = std::string(GetString());
             layer->mHasGradient = true;
             mLayersToUpdate.push_back(layer);
         } else if (0 == strcmp(key, "sr")) {  // "Layer Time Stretching"
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             layer->mTimeStreatch = GetDouble();
         } else if (0 == strcmp(key, "tm")) {  // time remapping
             parseProperty(layer->extra()->mTimeRemap);
         } else if (0 == strcmp(key, "ip")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             layer->mInFrame = std::lround(GetDouble());
         } else if (0 == strcmp(key, "op")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             layer->mOutFrame = std::lround(GetDouble());
         } else if (0 == strcmp(key, "st")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             layer->mStartFrame = GetDouble();
         } else if (0 == strcmp(key, "bm")) {
             layer->mBlendMode = getBlendMode();
         } else if (0 == strcmp(key, "ks")) {
-            RAPIDJSON_ASSERT(PeekType() == kObjectType);
             EnterObject();
             layer->mTransform = parseTransformObject(ddd);
         } else if (0 == strcmp(key, "shapes")) {
@@ -1084,7 +1064,7 @@ model::Layer *LottieParserImpl::parseLayer()
         staticFlag &= child->isStatic();
     }
 
-    if (layer->hasMask()) {
+    if (layer->hasMask() && layer->mExtra) {
         for (const auto &mask : layer->mExtra->mMasks) {
             staticFlag &= mask->isStatic();
         }
@@ -1097,7 +1077,6 @@ model::Layer *LottieParserImpl::parseLayer()
 
 void LottieParserImpl::parseMaskProperty(model::Layer *layer)
 {
-    RAPIDJSON_ASSERT(PeekType() == kArrayType);
     EnterArray();
     while (NextArrayValue()) {
         layer->extra()->mMasks.push_back(parseMaskObject());
@@ -1108,7 +1087,6 @@ model::Mask *LottieParserImpl::parseMaskObject()
 {
     auto obj = allocator().make<model::Mask>();
 
-    RAPIDJSON_ASSERT(PeekType() == kObjectType);
     EnterObject();
     while (const char *key = NextObjectKey()) {
         if (0 == strcmp(key, "inv")) {
@@ -1153,7 +1131,6 @@ model::Mask *LottieParserImpl::parseMaskObject()
 
 void LottieParserImpl::parseShapesAttr(model::Layer *layer)
 {
-    RAPIDJSON_ASSERT(PeekType() == kArrayType);
     EnterArray();
     while (NextArrayValue()) {
         parseObject(layer);
@@ -1162,13 +1139,19 @@ void LottieParserImpl::parseShapesAttr(model::Layer *layer)
 
 model::Object *LottieParserImpl::parseObjectTypeAttr()
 {
-    RAPIDJSON_ASSERT(PeekType() == kStringType);
     const char *type = GetString();
+    if (!type) {
+        vWarning << "No object type specified";
+        return nullptr;
+    }
     if (0 == strcmp(type, "gr")) {
         return parseGroupObject();
     } else if (0 == strcmp(type, "rc")) {
         return parseRectObject();
-    } else if (0 == strcmp(type, "el")) {
+    } 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();
@@ -1205,18 +1188,39 @@ model::Object *LottieParserImpl::parseObjectTypeAttr()
 
 void LottieParserImpl::parseObject(model::Group *parent)
 {
-    RAPIDJSON_ASSERT(PeekType() == kObjectType);
     EnterObject();
     while (const char *key = NextObjectKey()) {
         if (0 == strcmp(key, "ty")) {
             auto child = parseObjectTypeAttr();
-            if (child && !child->hidden()) parent->mChildren.push_back(child);
+            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>();
@@ -1225,14 +1229,13 @@ model::Object *LottieParserImpl::parseGroupObject()
         if (0 == strcmp(key, "nm")) {
             group->setName(GetString());
         } else if (0 == strcmp(key, "it")) {
-            RAPIDJSON_ASSERT(PeekType() == kArrayType);
             EnterArray();
             while (NextArrayValue()) {
-                RAPIDJSON_ASSERT(PeekType() == kObjectType);
                 parseObject(group);
             }
-            if (group->mChildren.back()->type() ==
+            if (!group->mChildren.empty()
-                model::Object::Type::Transform) {
+                    && group->mChildren.back()->type()
+                            == model::Object::Type::Transform) {
                 group->mTransform =
                     static_cast<model::Transform *>(group->mChildren.back());
                 group->mChildren.pop_back();
@@ -1282,6 +1285,28 @@ model::Rect *LottieParserImpl::parseRectObject()
     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
  */
@@ -1387,7 +1412,6 @@ model::Polystar *LottieParserImpl::parsePolystarObject()
 
 model::Trim::TrimType LottieParserImpl::getTrimType()
 {
-    RAPIDJSON_ASSERT(PeekType() == kNumberType);
     switch (GetInt()) {
     case 1:
         return model::Trim::TrimType::Simultaneously;
@@ -1396,7 +1420,7 @@ model::Trim::TrimType LottieParserImpl::getTrimType()
         return model::Trim::TrimType::Individually;
         break;
     default:
-        RAPIDJSON_ASSERT(0);
+        Error();
         return model::Trim::TrimType::Simultaneously;
         break;
     }
@@ -1544,10 +1568,13 @@ model::Transform *LottieParserImpl::parseTransformObject(bool ddd)
         } 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);
@@ -1606,7 +1633,6 @@ model::Fill *LottieParserImpl::parseFillObject()
  */
 CapStyle LottieParserImpl::getLineCap()
 {
-    RAPIDJSON_ASSERT(PeekType() == kNumberType);
     switch (GetInt()) {
     case 1:
         return CapStyle::Flat;
@@ -1622,7 +1648,6 @@ CapStyle LottieParserImpl::getLineCap()
 
 FillRule LottieParserImpl::getFillRule()
 {
-    RAPIDJSON_ASSERT(PeekType() == kNumberType);
     switch (GetInt()) {
     case 1:
         return FillRule::Winding;
@@ -1641,7 +1666,6 @@ FillRule LottieParserImpl::getFillRule()
  */
 JoinStyle LottieParserImpl::getLineJoin()
 {
-    RAPIDJSON_ASSERT(PeekType() == kNumberType);
     switch (GetInt()) {
     case 1:
         return JoinStyle::Miter;
@@ -1678,7 +1702,6 @@ model::Stroke *LottieParserImpl::parseStrokeObject()
         } else if (0 == strcmp(key, "lj")) {
             obj->mJoinStyle = getLineJoin();
         } else if (0 == strcmp(key, "ml")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             obj->mMiterLimit = GetDouble();
         } else if (0 == strcmp(key, "d")) {
             parseDashProperty(obj->mDash);
@@ -1700,7 +1723,6 @@ void LottieParserImpl::parseGradientProperty(model::Gradient *obj,
                                              const char *     key)
 {
     if (0 == strcmp(key, "t")) {
-        RAPIDJSON_ASSERT(PeekType() == kNumberType);
         obj->mGradientType = GetInt();
     } else if (0 == strcmp(key, "o")) {
         parseProperty(obj->mOpacity);
@@ -1758,10 +1780,8 @@ model::GradientFill *LottieParserImpl::parseGFillObject()
 
 void LottieParserImpl::parseDashProperty(model::Dash &dash)
 {
-    RAPIDJSON_ASSERT(PeekType() == kArrayType);
     EnterArray();
     while (NextArrayValue()) {
-        RAPIDJSON_ASSERT(PeekType() == kObjectType);
         EnterObject();
         while (const char *key = NextObjectKey()) {
             if (0 == strcmp(key, "v")) {
@@ -1791,7 +1811,6 @@ model::GradientStroke *LottieParserImpl::parseGStrokeObject()
         } else if (0 == strcmp(key, "lj")) {
             obj->mJoinStyle = getLineJoin();
         } else if (0 == strcmp(key, "ml")) {
-            RAPIDJSON_ASSERT(PeekType() == kNumberType);
             obj->mMiterLimit = GetDouble();
         } else if (0 == strcmp(key, "d")) {
             parseDashProperty(obj->mDash);
@@ -1807,10 +1826,8 @@ model::GradientStroke *LottieParserImpl::parseGStrokeObject()
 
 void LottieParserImpl::getValue(std::vector<VPointF> &v)
 {
-    RAPIDJSON_ASSERT(PeekType() == kArrayType);
     EnterArray();
     while (NextArrayValue()) {
-        RAPIDJSON_ASSERT(PeekType() == kArrayType);
         EnterArray();
         VPointF pt;
         getValue(pt);
@@ -1847,7 +1864,7 @@ void LottieParserImpl::getValue(float &val)
     } else if (PeekType() == kNumberType) {
         val = GetDouble();
     } else {
-        RAPIDJSON_ASSERT(0);
+        Error();
     }
 }
 
@@ -1890,7 +1907,7 @@ void LottieParserImpl::getValue(int &val)
     } else if (PeekType() == kNumberType) {
         val = GetInt();
     } else {
-        RAPIDJSON_ASSERT(0);
+        Error();
     }
 }
 
@@ -1905,7 +1922,6 @@ void LottieParserImpl::parsePathInfo()
     bool arrayWrapper = (PeekType() == kArrayType);
     if (arrayWrapper) EnterArray();
 
-    RAPIDJSON_ASSERT(PeekType() == kObjectType);
     EnterObject();
     while (const char *key = NextObjectKey()) {
         if (0 == strcmp(key, "i")) {
@@ -1917,7 +1933,7 @@ void LottieParserImpl::parsePathInfo()
         } else if (0 == strcmp(key, "c")) {
             mPathInfo.mClosed = GetBool();
         } else {
-            RAPIDJSON_ASSERT(0);
+            Error();
             Skip(nullptr);
         }
     }
@@ -1937,7 +1953,6 @@ void LottieParserImpl::getValue(model::PathData &obj)
 VPointF LottieParserImpl::parseInperpolatorPoint()
 {
     VPointF cp;
-    RAPIDJSON_ASSERT(PeekType() == kObjectType);
     EnterObject();
     while (const char *key = NextObjectKey()) {
         if (0 == strcmp(key, "x")) {
@@ -2026,17 +2041,15 @@ void LottieParserImpl::parseKeyFrame(model::KeyFrames<T, Tag> &obj)
             continue;
         } else if (0 == strcmp(key, "n")) {
             if (PeekType() == kStringType) {
-                parsed.interpolatorKey = GetString();
+                parsed.interpolatorKey = GetStringObject();
             } else {
-                RAPIDJSON_ASSERT(PeekType() == kArrayType);
                 EnterArray();
                 while (NextArrayValue()) {
-                    RAPIDJSON_ASSERT(PeekType() == kStringType);
                     if (parsed.interpolatorKey.empty()) {
-                        parsed.interpolatorKey = GetString();
+                        parsed.interpolatorKey = GetStringObject();
                     } else {
                         // skip rest of the string
-                        GetString();
+                        Skip(nullptr);
                     }
                 }
             }
@@ -2092,12 +2105,10 @@ void LottieParserImpl::parseShapeProperty(model::Property<model::PathData> &obj)
             if (PeekType() == kArrayType) {
                 EnterArray();
                 while (NextArrayValue()) {
-                    RAPIDJSON_ASSERT(PeekType() == kObjectType);
                     parseKeyFrame(obj.animation());
                 }
             } else {
                 if (!obj.isStatic()) {
-                    RAPIDJSON_ASSERT(false);
                     st_ = kError;
                     return;
                 }
@@ -2118,14 +2129,12 @@ void LottieParserImpl::parsePropertyHelper(model::Property<T, Tag> &obj)
 {
     if (PeekType() == kNumberType) {
         if (!obj.isStatic()) {
-            RAPIDJSON_ASSERT(false);
             st_ = kError;
             return;
         }
         /*single value property with no animation*/
         getValue(obj.value());
     } else {
-        RAPIDJSON_ASSERT(PeekType() == kArrayType);
         EnterArray();
         while (NextArrayValue()) {
             /* property with keyframe info*/
@@ -2138,9 +2147,7 @@ void LottieParserImpl::parsePropertyHelper(model::Property<T, Tag> &obj)
                  * or array of object without entering the array
                  * thats why this hack is there
                  */
-                RAPIDJSON_ASSERT(PeekType() == kNumberType);
                 if (!obj.isStatic()) {
-                    RAPIDJSON_ASSERT(false);
                     st_ = kError;
                     return;
                 }
@@ -2252,6 +2259,11 @@ public:
                    << " , 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() << " }";

src/vector/stb/CMakeLists.txt

@@ -2,9 +2,11 @@ if(LOTTIE_MODULE)
     add_library(rlottie-image-loader SHARED
                 stb_image.cpp
                )
-    target_compile_options(rlottie-image-loader PRIVATE
+    if(NOT MSVC)
-                           -fvisibility=hidden
+        target_compile_options(rlottie-image-loader PRIVATE
-                          )
+                               -fvisibility=hidden
+                              )
+    endif()
 
     get_filename_component(LOTTIE_MODULE_FILENAME ${LOTTIE_MODULE_PATH} NAME)
     get_filename_component(LOTTIE_MODULE_DIR ${LOTTIE_MODULE_PATH} DIRECTORY)

src/vector/stb/meson.build

@@ -3,14 +3,14 @@ source_file = ['stb_image.cpp']
 
 if get_option('module') == true
     rlottie_image_loader_dir = get_option('moduledir') != '' ? get_option('moduledir') : get_option('libdir')
-    rlottie_image_loader_lib = shared_library('rlottie-image-loader',
+    rlottie_image_loader_lib = shared_module('rlottie-image-loader',
-                                              source_file,
+                                             source_file,
-                                              include_directories : [include_directories('.'), config_dir],
+                                             include_directories : [include_directories('.'), config_dir],
-                                              install : true,
+                                             install : true,
-                                              install_dir : rlottie_image_loader_dir,
+                                             install_dir : rlottie_image_loader_dir,
-                                              cpp_args : compiler_flags,
+                                             cpp_args : compiler_flags,
-                                              gnu_symbol_visibility : 'hidden',
+                                             gnu_symbol_visibility : 'hidden',
-                                             )
+                                            )
     cc = meson.get_compiler('cpp')
     stb_dep = cc.find_library('dl', required : false)
 else

src/vector/stb/stb_image.h

@@ -307,6 +307,10 @@ RECENT REVISION HISTORY:
 #include <stdio.h>
 #endif // STBI_NO_STDIO
 
+#if defined _WIN32 || defined __CYGWIN__
+#include <windows.h>
+#endif  // defined _WIN32 || defined __CYGWIN__
+
 #define STBI_VERSION 1
 
 enum
@@ -1149,14 +1153,38 @@ static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, in
 
 static FILE *stbi__fopen(char const *filename, char const *mode)
 {
-   FILE *f;
+    FILE *f;
-#if defined(_MSC_VER) && _MSC_VER >= 1400
+#if defined(_MSC_VER)
-   if (0 != fopen_s(&f, filename, mode))
+    DWORD cch =
-      f=0;
+        MultiByteToWideChar(CP_UTF8, 0, filename, -1, nullptr, 0);
-#else
+    wchar_t *filenameU = new wchar_t[cch];
-   f = fopen(filename, mode);
+    if(!filenameU)
-#endif
+    {
-   return f;
+       return 0;
+    }
+    MultiByteToWideChar(CP_UTF8, 0, filename, -1, filenameU, cch);
+    cch = MultiByteToWideChar(CP_UTF8, 0, mode, -1, nullptr, 0);
+    wchar_t *modeU = new wchar_t[cch];
+    if(!modeU)
+    {
+       delete[] filenameU;
+       return 0;
+    }
+    MultiByteToWideChar(CP_UTF8, 0, mode, -1, modeU, cch);
+#if _MSC_VER >= 1400
+    if(0 != _wfopen_s(&f, filenameU, modeU))
+      f = 0;
+    delete[] filenameU;
+    delete[] modeU;
+#else // _MSC_VER >= 1400
+    f = _wfopen(filenameU, modeU);
+    delete[] filenameU;
+    delete[] modeU;
+#endif // _MSC_VER >= 1400
+#else // _MSC_VER
+    f = fopen(filename, mode);
+#endif //_MSC_VER
+    return f;
 }
 
 

src/vector/vbezier.cpp

@@ -81,12 +81,12 @@ float VBezier::tAtLength(float l, float totalLength) const
     t *= 0.5;
 
     float lastBigger = 1.0;
-    while (1) {
+    for (int num = 0; num < 100500; num++) {
         VBezier right = *this;
         VBezier left;
         right.parameterSplitLeft(t, &left);
         float lLen = left.length();
-        if (fabs(lLen - l) < error) break;
+        if (fabs(lLen - l) < error) return t;
 
         if (lLen < l) {
             t += (lastBigger - t) * 0.5f;
@@ -95,6 +95,7 @@ float VBezier::tAtLength(float l, float totalLength) const
             t -= t * 0.5f;
         }
     }
+    vWarning << "no convergence";
     return t;
 }
 

src/vector/vbitmap.cpp

@@ -31,31 +31,31 @@ V_BEGIN_NAMESPACE
 void VBitmap::Impl::reset(size_t width, size_t height, VBitmap::Format format)
 {
     mRoData = nullptr;
-    mWidth = uint(width);
+    mWidth = uint32_t(width);
-    mHeight = uint(height);
+    mHeight = uint32_t(height);
     mFormat = format;
 
     mDepth = depth(format);
     mStride = ((mWidth * mDepth + 31) >> 5)
                   << 2;  // bytes per scanline (must be multiple of 4)
-    mOwnData = std::make_unique<uchar[]>(mStride * mHeight);
+    mOwnData = std::make_unique<uint8_t[]>(mStride * mHeight);
 }
 
-void VBitmap::Impl::reset(uchar *data, size_t width, size_t height, size_t bytesPerLine,
+void VBitmap::Impl::reset(uint8_t *data, size_t width, size_t height,
-                          VBitmap::Format format)
+                          size_t bytesPerLine, VBitmap::Format format)
 {
     mRoData = data;
-    mWidth = uint(width);
+    mWidth = uint32_t(width);
-    mHeight = uint(height);
+    mHeight = uint32_t(height);
-    mStride = uint(bytesPerLine);
+    mStride = uint32_t(bytesPerLine);
     mFormat = format;
     mDepth = depth(format);
     mOwnData = nullptr;
 }
 
-uchar VBitmap::Impl::depth(VBitmap::Format format)
+uint8_t VBitmap::Impl::depth(VBitmap::Format format)
 {
-    uchar depth = 1;
+    uint8_t depth = 1;
     switch (format) {
     case VBitmap::Format::Alpha8:
         depth = 8;
@@ -70,7 +70,7 @@ uchar VBitmap::Impl::depth(VBitmap::Format format)
     return depth;
 }
 
-void VBitmap::Impl::fill(uint /*pixel*/)
+void VBitmap::Impl::fill(uint32_t /*pixel*/)
 {
     //@TODO
 }
@@ -79,9 +79,9 @@ void VBitmap::Impl::updateLuma()
 {
     if (mFormat != VBitmap::Format::ARGB32_Premultiplied) return;
     auto dataPtr = data();
-    for (uint col = 0; col < mHeight; col++) {
+    for (uint32_t col = 0; col < mHeight; col++) {
-        uint *pixel = (uint *)(dataPtr + mStride * col);
+        uint32_t *pixel = (uint32_t *)(dataPtr + mStride * col);
-        for (uint row = 0; row < mWidth; row++) {
+        for (uint32_t row = 0; row < mWidth; row++) {
             int alpha = vAlpha(*pixel);
             if (alpha == 0) {
                 pixel++;
@@ -112,8 +112,8 @@ VBitmap::VBitmap(size_t width, size_t height, VBitmap::Format format)
     mImpl = rc_ptr<Impl>(width, height, format);
 }
 
-VBitmap::VBitmap(uchar *data, size_t width, size_t height, size_t bytesPerLine,
+VBitmap::VBitmap(uint8_t *data, size_t width, size_t height,
-                 VBitmap::Format format)
+                 size_t bytesPerLine, VBitmap::Format format)
 {
     if (!data || width <= 0 || height <= 0 || bytesPerLine <= 0 ||
         format == Format::Invalid)
@@ -122,7 +122,7 @@ VBitmap::VBitmap(uchar *data, size_t width, size_t height, size_t bytesPerLine,
     mImpl = rc_ptr<Impl>(data, width, height, bytesPerLine, format);
 }
 
-void VBitmap::reset(uchar *data, size_t w, size_t h, size_t bytesPerLine,
+void VBitmap::reset(uint8_t *data, size_t w, size_t h, size_t bytesPerLine,
                     VBitmap::Format format)
 {
     if (mImpl) {
@@ -165,12 +165,12 @@ size_t VBitmap::depth() const
     return mImpl ? mImpl->mDepth : 0;
 }
 
-uchar *VBitmap::data()
+uint8_t *VBitmap::data()
 {
     return mImpl ? mImpl->data() : nullptr;
 }
 
-uchar *VBitmap::data() const
+uint8_t *VBitmap::data() const
 {
     return mImpl ? mImpl->data() : nullptr;
 }
@@ -195,7 +195,7 @@ VBitmap::Format VBitmap::format() const
     return mImpl ? mImpl->format() : VBitmap::Format::Invalid;
 }
 
-void VBitmap::fill(uint pixel)
+void VBitmap::fill(uint32_t pixel)
 {
     if (mImpl) mImpl->fill(pixel);
 }

src/vector/vbitmap.h

@@ -30,7 +30,7 @@ V_BEGIN_NAMESPACE
 
 class VBitmap {
 public:
-    enum class Format: uchar {
+    enum class Format : uint8_t {
         Invalid,
         Alpha8,
         ARGB32,
@@ -39,8 +39,10 @@ public:
 
     VBitmap() = default;
     VBitmap(size_t w, size_t h, VBitmap::Format format);
-    VBitmap(uchar *data, size_t w, size_t h, size_t bytesPerLine, VBitmap::Format format);
+    VBitmap(uint8_t *data, size_t w, size_t h, size_t bytesPerLine,
-    void reset(uchar *data, size_t w, size_t h, size_t stride, VBitmap::Format format);
+            VBitmap::Format format);
+    void reset(uint8_t *data, size_t w, size_t h, size_t stride,
+               VBitmap::Format format);
     void reset(size_t w, size_t h, VBitmap::Format format=Format::ARGB32_Premultiplied);
     size_t          stride() const;
     size_t          width() const;
@@ -48,27 +50,28 @@ public:
     size_t          depth() const;
     VBitmap::Format format() const;
     bool            valid() const;
-    uchar *         data();
+    uint8_t *       data();
-    uchar *         data() const;
+    uint8_t *       data() const;
     VRect           rect() const;
     VSize           size() const;
-    void    fill(uint pixel);
+    void            fill(uint32_t pixel);
     void    updateLuma();
 private:
     struct Impl {
-        std::unique_ptr<uchar[]> mOwnData{nullptr};
+        std::unique_ptr<uint8_t[]> mOwnData{nullptr};
-        uchar *         mRoData{nullptr};
+        uint8_t *                  mRoData{nullptr};
-        uint            mWidth{0};
+        uint32_t                   mWidth{0};
-        uint            mHeight{0};
+        uint32_t                   mHeight{0};
-        uint            mStride{0};
+        uint32_t                   mStride{0};
-        uchar           mDepth{0};
+        uint8_t                    mDepth{0};
         VBitmap::Format mFormat{VBitmap::Format::Invalid};
 
         explicit Impl(size_t width, size_t height, VBitmap::Format format)
         {
             reset(width, height, format);
         }
-        explicit Impl(uchar *data, size_t w, size_t h, size_t bytesPerLine, VBitmap::Format format)
+        explicit Impl(uint8_t *data, size_t w, size_t h, size_t bytesPerLine,
+                      VBitmap::Format format)
         {
             reset(data, w, h, bytesPerLine, format);
         }
@@ -77,12 +80,12 @@ private:
         size_t  stride() const { return mStride; }
         size_t  width() const { return mWidth; }
         size_t  height() const { return mHeight; }
-        uchar * data() { return mRoData ? mRoData : mOwnData.get(); }
+        uint8_t *       data() { return mRoData ? mRoData : mOwnData.get(); }
         VBitmap::Format format() const { return mFormat; }
-        void reset(uchar *, size_t, size_t, size_t, VBitmap::Format);
+        void reset(uint8_t *, size_t, size_t, size_t, VBitmap::Format);
         void reset(size_t, size_t, VBitmap::Format);
-        static uchar depth(VBitmap::Format format);
+        static uint8_t depth(VBitmap::Format format);
-        void fill(uint);
+        void fill(uint32_t);
         void updateLuma();
     };
 

src/vector/vbrush.cpp

@@ -43,7 +43,7 @@ VBrush::VBrush(const VColor &color) : mType(VBrush::Type::Solid), mColor(color)
 {
 }
 
-VBrush::VBrush(uchar r, uchar g, uchar b, uchar a)
+VBrush::VBrush(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
     : mType(VBrush::Type::Solid), mColor(r, g, b, a)
 
 {

src/vector/vbrush.h

@@ -75,7 +75,7 @@ public:
     VBrush():mType(Type::NoBrush),mColor(){};
     explicit VBrush(const VColor &color);
     explicit VBrush(const VGradient *gradient);
-    explicit VBrush(uchar r, uchar g, uchar b, uchar a);
+    explicit VBrush(uint8_t r, uint8_t g, uint8_t b, uint8_t a);
     explicit VBrush(const VTexture *texture);
     inline VBrush::Type type() const { return mType; }
 public:

src/vector/vdrawable.cpp

@@ -106,7 +106,7 @@ void VDrawable::setDashInfo(std::vector<float> &dashInfo)
     bool hasChanged = false;
 
     if (obj->mDash.size() == dashInfo.size()) {
-        for (uint i = 0; i < dashInfo.size(); ++i) {
+        for (uint32_t i = 0; i < dashInfo.size(); ++i) {
             if (!vCompare(obj->mDash[i], dashInfo[i])) {
                 hasChanged = true;
                 break;

src/vector/vdrawhelper.cpp

@@ -56,7 +56,7 @@ public:
         VCacheKey             hash_val = 0;
         VCacheData            info;
         const VGradientStops &stops = gradient.mStops;
-        for (uint i = 0; i < stops.size() && i <= 2; i++)
+        for (uint32_t i = 0; i < stops.size() && i <= 2; i++)
             hash_val +=
                 VCacheKey(stops[i].second.premulARGB() * gradient.alpha());
 
@@ -100,11 +100,11 @@ public:
     }
 
 protected:
-    uint       maxCacheSize() const { return 60; }
+    uint32_t   maxCacheSize() const { return 60; }
     VCacheData addCacheElement(VCacheKey hash_val, const VGradient &gradient)
     {
         if (mCache.size() == maxCacheSize()) {
-            uint count = maxCacheSize() / 10;
+            uint32_t count = maxCacheSize() / 10;
             while (count--) {
                 mCache.erase(mCache.begin());
             }
@@ -147,7 +147,7 @@ bool VGradientCache::generateGradientColorTable(const VGradientStops &stops,
 
     colorTable[pos++] = curColor;
 
-    while (fpos <= curr->first) {
+    while (fpos <= curr->first && pos < size) {
         colorTable[pos] = colorTable[pos - 1];
         pos++;
         fpos += incr;
@@ -519,7 +519,7 @@ static void blend_color(size_t size, const VRle::Span *array, void *userData)
 {
     VSpanData *data = (VSpanData *)(userData);
     Operator   op = getOperator(data);
-    const uint color = data->mSolid;
+    const uint32_t color = data->mSolid;
 
     for (size_t i = 0 ; i < size; ++i) {
         const auto &span = array[i];
@@ -528,16 +528,16 @@ static void blend_color(size_t size, const VRle::Span *array, void *userData)
 }
 
 // Signature of Process Object
-//  void Pocess(uint* scratchBuffer, size_t x, size_t y, uchar cov)
+//  void Pocess(uint* scratchBuffer, size_t x, size_t y, uint8_t cov)
 template <class Process>
 static inline void process_in_chunk(const VRle::Span *array, size_t size,
                                     Process process)
 {
-    std::array<uint, 2048> buf;
+    std::array<uint32_t, 2048> buf;
     for (size_t i = 0; i < size; i++) {
         const auto &span = array[i];
         size_t      len = span.len;
-        size_t      x = span.x;
+        auto        x = span.x;
         while (len) {
             auto l = std::min(len, buf.size());
             process(buf.data(), x, span.y, l, span.coverage);
@@ -557,7 +557,7 @@ static void blend_gradient(size_t size, const VRle::Span *array,
 
     process_in_chunk(
         array, size,
-        [&](uint *scratch, size_t x, size_t y, size_t len, uchar cov) {
+        [&](uint32_t *scratch, size_t x, size_t y, size_t len, uint8_t cov) {
             op.srcFetch(scratch, &op, data, (int)y, (int)x, (int)len);
             op.func(data->buffer((int)x, (int)y), (int)len, scratch, cov);
         });
@@ -569,7 +569,7 @@ constexpr const T &clamp(const T &v, const T &lo, const T &hi)
     return v < lo ? lo : hi < v ? hi : v;
 }
 
-static constexpr inline uchar alpha_mul(uchar a, uchar b)
+static constexpr inline uint8_t alpha_mul(uint8_t a, uint8_t b)
 {
     return ((a * b) >> 8);
 }
@@ -590,7 +590,7 @@ static void blend_image_xform(size_t size, const VRle::Span *array,
 
     process_in_chunk(
         array, size,
-        [&](uint *scratch, size_t x, size_t y, size_t len, uchar cov) {
+        [&](uint32_t *scratch, size_t x, size_t y, size_t len, uint8_t cov) {
             const auto  coverage = (cov * src.alpha()) >> 8;
             const float xfactor = y * data->m21 + data->dx + data->m11;
             const float yfactor = y * data->m22 + data->dy + data->m12;

src/vector/vdrawhelper.h

@@ -127,7 +127,7 @@ public:
 
     void resetBuffer(int val = 0);
 
-    inline uchar *scanLine(int y)
+    inline uint8_t *scanLine(int y)
     {
         assert(y >= 0);
         assert(size_t(y) < mHeight);
@@ -150,7 +150,7 @@ private:
     size_t          mHeight{0};
     size_t          mBytesPerLine{0};
     size_t          mBytesPerPixel{0};
-    mutable uchar * mBuffer{nullptr};
+    mutable uint8_t *mBuffer{nullptr};
 };
 
 struct VGradientData {
@@ -171,8 +171,8 @@ struct VGradientData {
 
 struct VTextureData : public VRasterBuffer {
     uint32_t pixel(int x, int y) const { return *pixelRef(x, y); };
-    uchar    alpha() const { return mAlpha; }
+    uint8_t  alpha() const { return mAlpha; }
-    void     setAlpha(uchar alpha) { mAlpha = alpha; }
+    void     setAlpha(uint8_t alpha) { mAlpha = alpha; }
     void     setClip(const VRect &clip);
     // clip rect
     int   left;
@@ -180,7 +180,7 @@ struct VTextureData : public VRasterBuffer {
     int   top;
     int   bottom;
     bool  hasAlpha;
-    uchar mAlpha;
+    uint8_t mAlpha;
 };
 
 struct VColorTable {
@@ -208,7 +208,7 @@ struct VSpanData {
         mDrawableSize = VSize(region.width(), region.height());
     }
 
-    uint *buffer(int x, int y) const
+    uint32_t *buffer(int x, int y) const
     {
         return mRasterBuffer->pixelRef(x + mOffset.x(), y + mOffset.y());
     }
@@ -256,9 +256,10 @@ inline constexpr int vAlpha(uint32_t c)
     return c >> 24;
 }
 
-static inline uint32_t interpolate_pixel(uint x, uint a, uint y, uint b)
+static inline uint32_t interpolate_pixel(uint32_t x, uint32_t a, uint32_t y,
+                                         uint32_t b)
 {
-    uint t = (x & 0xff00ff) * a + (y & 0xff00ff) * b;
+    uint32_t t = (x & 0xff00ff) * a + (y & 0xff00ff) * b;
     t >>= 8;
     t &= 0xff00ff;
     x = ((x >> 8) & 0xff00ff) * a + ((y >> 8) & 0xff00ff) * b;

src/vector/vdrawhelper_common.cpp

@@ -65,10 +65,10 @@ static void color_SourceOver(uint32_t *dest, int length, uint32_t color,
   dest = d * sa * ca + d * cia
        = d * (sa * ca + cia)
 */
-static void color_DestinationIn(uint *dest, int length, uint color,
+static void color_DestinationIn(uint32_t *dest, int length, uint32_t color,
-                                uint alpha)
+                                uint32_t alpha)
 {
-    uint a = vAlpha(color);
+    uint32_t a = vAlpha(color);
     if (alpha != 255) {
         a = BYTE_MUL(a, alpha) + 255 - alpha;
     }
@@ -82,10 +82,10 @@ static void color_DestinationIn(uint *dest, int length, uint color,
   dest = d * sia * ca + d * cia
        = d * (sia * ca + cia)
 */
-static void color_DestinationOut(uint *dest, int length, uint color,
+static void color_DestinationOut(uint32_t *dest, int length, uint32_t color,
-                                 uint alpha)
+                                 uint32_t alpha)
 {
-    uint a = vAlpha(~color);
+    uint32_t a = vAlpha(~color);
     if (alpha != 255) a = BYTE_MUL(a, alpha) + 255 - alpha;
     for (int i = 0; i < length; ++i) {
         dest[i] = BYTE_MUL(dest[i], a);
@@ -96,9 +96,9 @@ static void src_Source(uint32_t *dest, int length, const uint32_t *src,
                        uint32_t alpha)
 {
     if (alpha == 255) {
-        memcpy(dest, src, size_t(length) * sizeof(uint));
+        memcpy(dest, src, size_t(length) * sizeof(uint32_t));
     } else {
-        uint ialpha = 255 - alpha;
+        uint32_t ialpha = 255 - alpha;
         for (int i = 0; i < length; ++i) {
             dest[i] =
                 interpolate_pixel(src[i], alpha, dest[i], ialpha);
@@ -112,7 +112,7 @@ static void src_Source(uint32_t *dest, int length, const uint32_t *src,
 static void src_SourceOver(uint32_t *dest, int length, const uint32_t *src,
                            uint32_t alpha)
 {
-    uint s, sia;
+    uint32_t s, sia;
 
     if (alpha == 255) {
         for (int i = 0; i < length; ++i) {
@@ -136,33 +136,33 @@ static void src_SourceOver(uint32_t *dest, int length, const uint32_t *src,
     }
 }
 
-static void src_DestinationIn(uint *dest, int length, const uint *src,
+static void src_DestinationIn(uint32_t *dest, int length, const uint32_t *src,
-                              uint alpha)
+                              uint32_t alpha)
 {
     if (alpha == 255) {
         for (int i = 0; i < length; ++i) {
             dest[i] = BYTE_MUL(dest[i], vAlpha(src[i]));
         }
     } else {
-        uint cia = 255 - alpha;
+        uint32_t cia = 255 - alpha;
         for (int i = 0; i < length; ++i) {
-            uint a = BYTE_MUL(vAlpha(src[i]), alpha) + cia;
+            uint32_t a = BYTE_MUL(vAlpha(src[i]), alpha) + cia;
             dest[i] = BYTE_MUL(dest[i], a);
         }
     }
 }
 
-static void src_DestinationOut(uint *dest, int length, const uint *src,
+static void src_DestinationOut(uint32_t *dest, int length, const uint32_t *src,
-                               uint alpha)
+                               uint32_t alpha)
 {
     if (alpha == 255) {
         for (int i = 0; i < length; ++i) {
             dest[i] = BYTE_MUL(dest[i], vAlpha(~src[i]));
         }
     } else {
-        uint cia = 255 - alpha;
+        uint32_t cia = 255 - alpha;
         for (int i = 0; i < length; ++i) {
-            uint sia = BYTE_MUL(vAlpha(~src[i]), alpha) + cia;
+            uint32_t sia = BYTE_MUL(vAlpha(~src[i]), alpha) + cia;
             dest[i] = BYTE_MUL(dest[i], sia);
         }
     }

src/vector/vglobal.h

@@ -29,9 +29,6 @@
 #include <type_traits>
 #include <utility>
 
-using uint   = uint32_t;
-using ushort = uint16_t;
-using uchar  = uint8_t;
 
 #if !defined(V_NAMESPACE)
 
@@ -122,10 +119,13 @@ public:
     explicit constexpr inline vFlagHelper(int ai) noexcept : i(ai) {}
     constexpr inline operator int() const noexcept { return i; }
 
-    explicit constexpr inline vFlagHelper(uint ai) noexcept : i(int(ai)) {}
+    explicit constexpr inline vFlagHelper(uint32_t ai) noexcept : i(int(ai)) {}
     explicit constexpr inline vFlagHelper(short ai) noexcept : i(int(ai)) {}
-    explicit constexpr inline vFlagHelper(ushort ai) noexcept : i(int(uint(ai))) {}
+    explicit constexpr inline vFlagHelper(uint16_t ai) noexcept
-    constexpr inline operator uint() const noexcept { return uint(i); }
+        : i(int(uint32_t(ai)))
+    {
+    }
+    constexpr inline operator uint32_t() const noexcept { return uint32_t(i); }
 };
 
 template <typename Enum>
@@ -139,7 +139,7 @@ public:
 
     using Int = typename std::conditional<
         std::is_unsigned<typename std::underlying_type<Enum>::type>::value,
-        unsigned int, signed int>::type;
+        uint32_t, signed int>::type;
 
     using  enum_type = Enum;
     // compiler-generated copy/move ctor/assignment operators are fine!
@@ -153,7 +153,7 @@ public:
         i &= mask;
         return *this;
     }
-    inline vFlag &operator&=(uint mask) noexcept
+    inline vFlag &operator&=(uint32_t mask) noexcept
     {
         i &= mask;
         return *this;
@@ -206,7 +206,7 @@ public:
     {
         return vFlag(vFlagHelper(i & mask));
     }
-    constexpr inline vFlag operator&(uint mask) const noexcept
+    constexpr inline vFlag operator&(uint32_t mask) const noexcept
     {
         return vFlag(vFlagHelper(i & mask));
     }
@@ -236,44 +236,47 @@ public:
 class VColor {
 public:
     VColor() = default;
-    explicit VColor(uchar red, uchar green, uchar blue, uchar alpha = 255) noexcept
+    explicit VColor(uint8_t red, uint8_t green, uint8_t blue,
-        :a(alpha), r(red), g(green), b(blue){}
+                    uint8_t alpha = 255) noexcept
-    inline uchar  red() const noexcept { return r; }
+        : a(alpha), r(red), g(green), b(blue)
-    inline uchar  green() const noexcept { return g; }
+    {
-    inline uchar  blue() const noexcept { return b; }
+    }
-    inline uchar  alpha() const noexcept { return a; }
+    inline uint8_t red() const noexcept { return r; }
-    inline void setRed(uchar red) noexcept { r = red; }
+    inline uint8_t green() const noexcept { return g; }
-    inline void setGreen(uchar green) noexcept { g = green; }
+    inline uint8_t blue() const noexcept { return b; }
-    inline void setBlue(uchar blue) noexcept { b = blue; }
+    inline uint8_t alpha() const noexcept { return a; }
-    inline void setAlpha(uchar alpha) noexcept { a = alpha; }
+    inline void    setRed(uint8_t red) noexcept { r = red; }
+    inline void    setGreen(uint8_t green) noexcept { g = green; }
+    inline void    setBlue(uint8_t blue) noexcept { b = blue; }
+    inline void    setAlpha(uint8_t alpha) noexcept { a = alpha; }
     inline bool isOpaque() const { return a == 255; }
     inline bool isTransparent() const { return a == 0; }
     inline bool operator==(const VColor &o) const
     {
         return ((a == o.a) && (r == o.r) && (g == o.g) && (b == o.b));
     }
-    uint premulARGB() const
+    uint32_t premulARGB() const
     {
         int pr = (r * a) / 255;
         int pg = (g * a) / 255;
         int pb = (b * a) / 255;
-        return uint((a << 24) | (pr << 16) | (pg << 8) | (pb));
+        return uint32_t((a << 24) | (pr << 16) | (pg << 8) | (pb));
     }
 
-    uint premulARGB(float opacity) const
+    uint32_t premulARGB(float opacity) const
     {
         int alpha = int(a * opacity);
         int pr = (r * alpha) / 255;
         int pg = (g * alpha) / 255;
         int pb = (b * alpha) / 255;
-        return uint((alpha << 24) | (pr << 16) | (pg << 8) | (pb));
+        return uint32_t((alpha << 24) | (pr << 16) | (pg << 8) | (pb));
     }
 
 public:
-    uchar a{0};
+    uint8_t a{0};
-    uchar r{0};
+    uint8_t r{0};
-    uchar g{0};
+    uint8_t g{0};
-    uchar b{0};
+    uint8_t b{0};
 };
 
 enum class FillRule: unsigned char { EvenOdd, Winding };

src/vector/vpainter.cpp

@@ -66,7 +66,7 @@ static void fillRect(const VRect &r, VSpanData *data)
         int i = 0;
         while (i < n) {
             spans[i].x = short(x1);
-            spans[i].len = ushort(x2 - x1);
+            spans[i].len = uint16_t(x2 - x1);
             spans[i].y = short(y + i);
             spans[i].coverage = 255;
             ++i;
@@ -84,12 +84,12 @@ void VPainter::drawBitmapUntransform(const VRect &  target,
 {
     mSpanData.initTexture(&bitmap, const_alpha, source);
     if (!mSpanData.mUnclippedBlendFunc) return;
-    mSpanData.dx = float(-target.x());
-    mSpanData.dy = float(-target.y());
 
-    VRect rr = source.translated(target.x(), target.y());
+    // update translation matrix for source texture.
+    mSpanData.dx = float(target.x() - source.x());
+    mSpanData.dy = float(target.y() - source.y());
 
-    fillRect(rr, &mSpanData);
+    fillRect(target, &mSpanData);
 }
 
 VPainter::VPainter(VBitmap *buffer)

src/vector/vpath.cpp

@@ -219,13 +219,13 @@ void VPath::VPathData::addOval(const VRectF &rect, VPath::Direction dir)
 
 void VPath::VPathData::addRect(const VRectF &rect, VPath::Direction dir)
 {
-    if (rect.empty()) return;
-
     float x = rect.x();
     float y = rect.y();
     float w = rect.width();
     float h = rect.height();
 
+    if (vCompare(w, 0.f) && vCompare(h, 0.f)) return;
+
     reserve(5, 6);  // 1Move + 4Line + 1Close
     if (dir == VPath::Direction::CW) {
         moveTo(x + w, y);

src/vector/vpath.h

@@ -35,7 +35,7 @@ class VPath {
 public:
     enum class Direction { CCW, CW };
 
-    enum class Element : uchar { MoveTo, LineTo, CubicTo, Close };
+    enum class Element : uint8_t { MoveTo, LineTo, CubicTo, Close };
     bool  empty() const;
     bool  null() const;
     void  moveTo(const VPointF &p);

src/vector/vraster.cpp

@@ -380,7 +380,7 @@ struct VRleTask {
             outRef.convert(mPath);
             outRef.convert(mCap, mJoin, mStrokeWidth, mMiterLimit);
 
-            uint points, contors;
+            uint32_t points, contors;
 
             SW_FT_Stroker_Set(stroker, outRef.ftWidth, outRef.ftCap,
                               outRef.ftJoin, outRef.ftMiterLimit);
@@ -461,20 +461,29 @@ class RleTaskScheduler {
         for (unsigned n = 0; n != _count; ++n) {
             _threads.emplace_back([&, n] { run(n); });
         }
+
+        IsRunning = true;
     }
 
 public:
+    static bool IsRunning;
+
     static RleTaskScheduler &instance()
     {
         static RleTaskScheduler singleton;
         return singleton;
     }
 
-    ~RleTaskScheduler()
+    ~RleTaskScheduler() { stop(); }
-    {
-        for (auto &e : _q) e.done();
 
-        for (auto &e : _threads) e.join();
+    void stop()
+    {
+        if (IsRunning) {
+            IsRunning = false;
+
+            for (auto &e : _q) e.done();
+            for (auto &e : _threads) e.join();
+        }
     }
 
     void process(VTask task)
@@ -499,12 +508,16 @@ public:
     SW_FT_Stroker stroker;
 
 public:
+    static bool IsRunning;
+
     static RleTaskScheduler &instance()
     {
         static RleTaskScheduler singleton;
         return singleton;
     }
 
+    void stop() {}
+
     RleTaskScheduler() { SW_FT_Stroker_New(&stroker); }
 
     ~RleTaskScheduler() { SW_FT_Stroker_Done(stroker); }
@@ -513,6 +526,8 @@ public:
 };
 #endif
 
+bool RleTaskScheduler::IsRunning{false};
+
 struct VRasterizer::VRasterizerImpl {
     VRleTask mTask;
 
@@ -560,4 +575,11 @@ void VRasterizer::rasterize(VPath path, CapStyle cap, JoinStyle join,
     updateRequest();
 }
 
+void lottieShutdownRasterTaskScheduler()
+{
+    if (RleTaskScheduler::IsRunning) {
+        RleTaskScheduler::instance().stop();
+    }
+}
+
 V_END_NAMESPACE

src/vector/vrle.cpp

@@ -27,6 +27,7 @@
 #include <array>
 #include <cstdlib>
 #include <cstring>
+#include <limits>
 #include <vector>
 #include "vdebug.h"
 #include "vglobal.h"
@@ -40,7 +41,7 @@ static size_t _opGeneric(rle_view &a, rle_view &b, Result &result,
 static size_t _opIntersect(const VRect &, rle_view &, Result &);
 static size_t _opIntersect(rle_view &, rle_view &, Result &);
 
-static inline uchar divBy255(int x)
+static inline uint8_t divBy255(int x)
 {
     return (x + (x >> 8) + 0x80) >> 8;
 }
@@ -141,7 +142,7 @@ void VRle::Data::updateBbox() const
     }
 }
 
-void VRle::Data::operator*=(uchar alpha)
+void VRle::Data::operator*=(uint8_t alpha)
 {
     for (auto &i : mSpans) {
         i.coverage = divBy255(i.coverage * alpha);
@@ -223,7 +224,7 @@ void VRle::Data::opGeneric(const VRle::Data &aObj, const VRle::Data &bObj,
     mSpans.reserve(a.size() + b.size());
 
     // if two rle are disjoint
-    if (!aObj.bbox().intersects(aObj.bbox())) {
+    if (!aObj.bbox().intersects(bObj.bbox())) {
         if (a.data()[0].y < b.data()[0].y) {
             copy(a.data(), a.size(), mSpans);
             copy(b.data(), b.size(), mSpans);
@@ -424,7 +425,7 @@ static size_t _opIntersect(const VRect &clip, rle_view &obj, Result &result)
             out->x = minx;
         } else {
             out->x = span.x;
-            out->len = std::min(span.len, ushort(maxx - span.x + 1));
+            out->len = std::min(span.len, uint16_t(maxx - span.x + 1));
         }
         if (out->len != 0) {
             out->y = span.y;
@@ -441,12 +442,12 @@ static size_t _opIntersect(const VRect &clip, rle_view &obj, Result &result)
     return result.max_size() - available;
 }
 
-static void blitXor(VRle::Span *spans, int count, uchar *buffer, int offsetX)
+static void blitXor(VRle::Span *spans, int count, uint8_t *buffer, int offsetX)
 {
     while (count--) {
         int    x = spans->x + offsetX;
         int    l = spans->len;
-        uchar *ptr = buffer + x;
+        uint8_t *ptr = buffer + x;
         while (l--) {
             int da = *ptr;
             *ptr = divBy255((255 - spans->coverage) * (da) +
@@ -457,13 +458,13 @@ static void blitXor(VRle::Span *spans, int count, uchar *buffer, int offsetX)
     }
 }
 
-static void blitDestinationOut(VRle::Span *spans, int count, uchar *buffer,
+static void blitDestinationOut(VRle::Span *spans, int count, uint8_t *buffer,
                                int offsetX)
 {
     while (count--) {
         int    x = spans->x + offsetX;
         int    l = spans->len;
-        uchar *ptr = buffer + x;
+        uint8_t *ptr = buffer + x;
         while (l--) {
             *ptr = divBy255((255 - spans->coverage) * (*ptr));
             ptr++;
@@ -472,13 +473,13 @@ static void blitDestinationOut(VRle::Span *spans, int count, uchar *buffer,
     }
 }
 
-static void blitSrcOver(VRle::Span *spans, int count, uchar *buffer,
+static void blitSrcOver(VRle::Span *spans, int count, uint8_t *buffer,
                         int offsetX)
 {
     while (count--) {
         int    x = spans->x + offsetX;
         int    l = spans->len;
-        uchar *ptr = buffer + x;
+        uint8_t *ptr = buffer + x;
         while (l--) {
             *ptr = spans->coverage + divBy255((255 - spans->coverage) * (*ptr));
             ptr++;
@@ -487,12 +488,12 @@ static void blitSrcOver(VRle::Span *spans, int count, uchar *buffer,
     }
 }
 
-void blitSrc(VRle::Span *spans, int count, uchar *buffer, int offsetX)
+void blitSrc(VRle::Span *spans, int count, uint8_t *buffer, int offsetX)
 {
     while (count--) {
         int    x = spans->x + offsetX;
         int    l = spans->len;
-        uchar *ptr = buffer + x;
+        uint8_t *ptr = buffer + x;
         while (l--) {
             *ptr = std::max(spans->coverage, *ptr);
             ptr++;
@@ -501,15 +502,16 @@ void blitSrc(VRle::Span *spans, int count, uchar *buffer, int offsetX)
     }
 }
 
-size_t bufferToRle(uchar *buffer, int size, int offsetX, int y, VRle::Span *out)
+size_t bufferToRle(uint8_t *buffer, int size, int offsetX, int y,
+                   VRle::Span *out)
 {
     size_t count = 0;
-    uchar  value = buffer[0];
+    uint8_t value = buffer[0];
     int    curIndex = 0;
 
     // size = offsetX < 0 ? size + offsetX : size;
     for (int i = 0; i < size; i++) {
-        uchar curValue = buffer[0];
+        uint8_t curValue = buffer[0];
         if (value != curValue) {
             if (value) {
                 out->y = y;
@@ -549,10 +551,10 @@ struct SpanMerger {
             break;
         }
     }
-    using blitter = void (*)(VRle::Span *, int, uchar *, int);
+    using blitter = void (*)(VRle::Span *, int, uint8_t *, int);
     blitter                     _blitter;
     std::array<VRle::Span, 256> _result;
-    std::array<uchar, 1024>     _buffer;
+    std::array<uint8_t, 1024>   _buffer;
     VRle::Span *                _aStart{nullptr};
     VRle::Span *                _bStart{nullptr};
 

src/vector/vrle.h

@@ -36,8 +36,8 @@ public:
     struct Span {
         short  x{0};
         short  y{0};
-        ushort len{0};
+        uint16_t len{0};
-        uchar  coverage{0};
+        uint8_t  coverage{0};
     };
     using VRleSpanCb = void (*)(size_t count, const VRle::Span *spans,
                                 void *userData);
@@ -52,7 +52,7 @@ public:
     void reset() { d.write().reset(); }
     void translate(const VPoint &p) { d.write().translate(p); }
 
-    void operator*=(uchar alpha) { d.write() *= alpha; }
+    void operator*=(uint8_t alpha) { d.write() *= alpha; }
 
     void intersect(const VRect &r, VRleSpanCb cb, void *userData) const;
     void intersect(const VRle &rle, VRleSpanCb cb, void *userData) const;
@@ -91,7 +91,7 @@ public:
         void  setBbox(const VRect &bbox) const;
         void  reset();
         void  translate(const VPoint &p);
-        void  operator*=(uchar alpha);
+        void  operator*=(uint8_t alpha);
         void  opGeneric(const VRle::Data &, const VRle::Data &, Op code);
         void  opSubstract(const VRle::Data &, const VRle::Data &);
         void  opIntersect(VRle::View a, VRle::View b);

src/wasm/rlottiewasm.cpp

@@ -27,6 +27,81 @@ public:
         return mPlayer ? true : false;
     }
 
+    void setFillColor(std::string keypath, float r, float g, float b)
+    {
+        if (!mPlayer) return;
+
+        mPlayer->setValue<rlottie::Property::FillColor>(keypath,
+                                                        rlottie::Color(r, g, b));
+    }
+
+    void setStrokeColor(std::string keypath, float r, float g, float b)
+    {
+        if (!mPlayer) return;
+
+        mPlayer->setValue<rlottie::Property::StrokeColor>(keypath,
+                                                          rlottie::Color(r, g, b));
+    }
+
+    void setFillOpacity(std::string keypath, float opacity)
+    {
+        if (!mPlayer || opacity > 100 || opacity < 0) return;
+
+        mPlayer->setValue<rlottie::Property::FillOpacity>(keypath, opacity);
+    }
+
+    void setStrokeOpacity(std::string keypath, float opacity)
+    {
+        if (!mPlayer || opacity > 100 || opacity < 0) return;
+
+        mPlayer->setValue<rlottie::Property::StrokeOpacity>(keypath, opacity);
+    }
+
+    void setStrokeWidth(std::string keypath, float width)
+    {
+        if (!mPlayer || width < 0) return;
+
+        mPlayer->setValue<rlottie::Property::StrokeWidth>(keypath, width);
+    }
+
+    void setAnchor(std::string keypath, float x, float y)
+    {
+        if (!mPlayer) return;
+
+        mPlayer->setValue<rlottie::Property::TrAnchor>(keypath,
+                                                       rlottie::Point(x, y));
+    }
+
+    void setPosition(std::string keypath, float x, float y)
+    {
+        if (!mPlayer) return;
+
+        mPlayer->setValue<rlottie::Property::TrPosition>(keypath,
+                                                         rlottie::Point(x, y));
+    }
+
+    void setScale(std::string keypath, float width, float height)
+    {
+        if (!mPlayer) return;
+
+        mPlayer->setValue<rlottie::Property::TrScale>(keypath,
+                                                      rlottie::Size(width, height));
+    }
+
+    void setRotation(std::string keypath, float degree)
+    {
+        if (!mPlayer || degree > 360 || degree < 0) return;
+
+        mPlayer->setValue<rlottie::Property::TrRotation>(keypath, degree);
+    }
+
+    void setOpacity(std::string keypath, float opacity)
+    {
+        if (!mPlayer || opacity > 100 || opacity < 0) return;
+
+        mPlayer->setValue<rlottie::Property::TrOpacity>(keypath, opacity);
+    }
+
     // canvas pixel pix[0] pix[1] pix[2] pix[3] {B G R A}
     // lottie pixel pix[0] pix[1] pix[2] pix[3] {R G B A}
     val render(int frame, int width, int height)
@@ -105,5 +180,15 @@ EMSCRIPTEN_BINDINGS(rlottie_bindings)
         .constructor(&RlottieWasm::create)
         .function("load", &RlottieWasm::load, allow_raw_pointers())
         .function("frames", &RlottieWasm::frames)
-        .function("render", &RlottieWasm::render);
+        .function("render", &RlottieWasm::render)
+        .function("setFillColor", &RlottieWasm::setFillColor)
+        .function("setStrokeColor", &RlottieWasm::setStrokeColor)
+        .function("setFillOpacity", &RlottieWasm::setFillOpacity)
+        .function("setStrokeOpacity", &RlottieWasm::setStrokeOpacity)
+        .function("setStrokeWidth", &RlottieWasm::setStrokeWidth)
+        .function("setAnchor", &RlottieWasm::setAnchor)
+        .function("setPosition", &RlottieWasm::setPosition)
+        .function("setScale", &RlottieWasm::setScale)
+        .function("setRotation", &RlottieWasm::setRotation)
+        .function("setOpacity", &RlottieWasm::setOpacity);
 }

vs2019/rlottie.vcxproj

@@ -45,7 +45,7 @@
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <PlatformToolset>v142</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
@@ -118,6 +118,9 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>../inc;./;../src/lottie;../src/vector;../src/vector/pixman;../src/vector/freetype;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalOptions>-DRLOTTIE_BUILD %(AdditionalOptions)</AdditionalOptions>
+      <DisableSpecificWarnings>4251;4244;4996</DisableSpecificWarnings>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>