135 lines
3.2 KiB
JavaScript
135 lines
3.2 KiB
JavaScript
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/*
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* This externs file prevents the Closure JS compiler from minifying away
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* names of objects created by Emscripten.
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* Basically, by defining empty objects and functions here, Closure will
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* know not to rename them. This is needed because of our pre-js files,
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* that is, the JS we hand-write to bundle into the output. That JS will be
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* hit by the closure compiler and thus needs to know about what functions
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* have special names and should not be minified.
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*
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* Emscripten does not support automatically generating an externs file, so we
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* do it by hand. The general process is to write some JS code, and then put any
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* calls to SkottieKit or related things in here. Running ./compile.sh and then
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* looking at the minified results or running the Release trybot should
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* verify nothing was missed. Optionally, looking directly at the minified
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* pathkit.js can be useful when developing locally.
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*
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* Docs:
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* https://github.com/cljsjs/packages/wiki/Creating-Externs
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* https://github.com/google/closure-compiler/wiki/Types-in-the-Closure-Type-System
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*
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* Example externs:
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* https://github.com/google/closure-compiler/tree/master/externs
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*/
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var SkottieKit = {
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// public API (i.e. things we declare in the pre-js file or in the cpp bindings)
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Color: function() {},
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Color4f: function() {},
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GetWebGLContext: function() {},
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MakeCanvasSurface: function() {},
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MakeGrContext: function() {},
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MakeInMemorySurface: function() {},
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MakeManagedAnimation: function() {},
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MakeOnScreenGLSurface: function() {},
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MakeSWCanvasSurface: function() {},
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MakeWebGLCanvasSurface: function() {},
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currentContext: function() {},
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setCurrentContext: function() {},
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_MakeManagedAnimation: function() {},
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_getRasterDirectSurface: function() {},
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GrContext: {
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// public API (from C++ bindings)
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getResourceCacheLimitBytes: function() {},
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getResourceCacheUsageBytes: function() {},
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releaseResourcesAndAbandonContext: function() {},
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setResourceCacheLimitBytes: function() {},
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},
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SkCanvas: {
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// public API (from C++ bindings)
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clear: function() {},
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prototype: {
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requestAnimationFrame: function() {},
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}
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},
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SkSurface: {
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// public API (from C++ bindings)
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flush: function() {},
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getCanvas: function() {},
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// private API
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_clear: function() {},
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prototype: {
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clear: function() {},
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}
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},
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// Constants and Enums
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gpu: {},
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skottie: {},
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managed_skottie: {},
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TRANSPARENT: {},
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BLACK: {},
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WHITE: {},
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AlphaType: {
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Opaque: {},
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Premul: {},
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Unpremul: {},
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},
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ColorType: {
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RGBA_8888: {},
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},
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// Things Emscripten adds for us
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/**
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* @type {Float32Array}
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*/
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HEAPF32: {},
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/**
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* @type {Float64Array}
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*/
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HEAPF64: {},
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/**
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* @type {Uint8Array}
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*/
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HEAPU8: {},
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/**
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* @type {Uint16Array}
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*/
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HEAPU16: {},
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/**
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* @type {Uint32Array}
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*/
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HEAPU32: {},
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/**
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* @type {Int8Array}
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*/
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HEAP8: {},
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/**
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* @type {Int16Array}
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*/
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HEAP16: {},
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/**
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* @type {Int32Array}
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*/
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HEAP32: {},
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_malloc: function() {},
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_free: function() {},
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onRuntimeInitialized: function() {},
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};
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// Not sure why this is needed - might be a bug in emsdk that this isn't properly declared.
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function loadWebAssemblyModule() {};
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