blob: 480fab32436e2e38747933c0700eabbcaf554736 [file] [log] [blame]
/*
* This externs file prevents the Closure JS compiler from minifying away
* names of objects created by Emscripten.
* Basically, by defining empty objects and functions here, Closure will
* know not to rename them. This is needed because of our pre-js files,
* that is, the JS we hand-write to bundle into the output. That JS will be
* hit by the closure compiler and thus needs to know about what functions
* have special names and should not be minified.
*
* Emscripten does not support automatically generating an externs file, so we
* do it by hand. The general process is to write some JS code, and then put any
* calls to CanvasKit or related things in here. Running ./compile.sh and then
* looking at the minified results or running the Release trybot should
* verify nothing was missed. Optionally, looking directly at the minified
* pathkit.js can be useful when developing locally.
*
* Docs:
* https://github.com/cljsjs/packages/wiki/Creating-Externs
* https://github.com/google/closure-compiler/wiki/Types-in-the-Closure-Type-System
*
* Example externs:
* https://github.com/google/closure-compiler/tree/master/externs
*/
var CanvasKit = {
// public API (i.e. things we declare in the pre-js file or in the cpp bindings)
Color: function() {},
Color4f: function() {},
/** @return {CanvasKit.SkRect} */
LTRBRect: function() {},
/** @return {CanvasKit.SkRect} */
XYWHRect: function() {},
/** @return {CanvasKit.SkRRect} */
RRectXY: function() {},
/** @return {ImageData} */
ImageData: function() {},
GetWebGLContext: function() {},
MakeBlurMaskFilter: function() {},
MakeCanvas: function() {},
MakeCanvasSurface: function() {},
MakeGrContext: function() {},
/** @return {CanvasKit.SkAnimatedImage} */
MakeAnimatedImageFromEncoded: function() {},
/** @return {CanvasKit.SkImage} */
MakeImage: function() {},
/** @return {CanvasKit.SkImage} */
MakeImageFromEncoded: function() {},
/** @return {LinearCanvasGradient} */
MakeLinearGradientShader: function() {},
MakeOnScreenGLSurface: function() {},
MakePathFromCmds: function() {},
MakePathFromOp: function() {},
MakePathFromSVGString: function() {},
MakeRadialGradientShader: function() {},
MakeRenderTarget: function() {},
MakeSkPicture: function() {},
MakeSWCanvasSurface: function() {},
MakeManagedAnimation: function() {},
MakeParticles: function() {},
MakeSkDashPathEffect: function() {},
MakeSkVertices: function() {},
MakeSurface: function() {},
/** @return {RadialCanvasGradient} */
MakeTwoPointConicalGradientShader: function() {},
MakeWebGLCanvasSurface: function() {},
/** @return {TypedArray} */
Malloc: function() {},
/** @return {TonalColors} */
computeTonalColors: function() {},
currentContext: function() {},
getColorComponents: function() {},
getDecodeCacheLimitBytes: function() {},
getDecodeCacheUsageBytes: function() {},
getSkDataBytes: function() {},
multiplyByAlpha: function() {},
parseColorString: function() {},
setCurrentContext: function() {},
setDecodeCacheLimitBytes: function() {},
// private API (i.e. things declared in the bindings that we use
// in the pre-js file)
_MakeImage: function() {},
_MakeLinearGradientShader: function() {},
_MakePathFromCmds: function() {},
_MakeRadialGradientShader: function() {},
_MakeSweepGradientShader: function() {},
_MakeManagedAnimation: function() {},
_MakeParticles: function() {},
_MakeSkPicture: function() {},
_MakeSkVertices: function() {},
_MakeTwoPointConicalGradientShader: function() {},
_decodeAnimatedImage: function() {},
_decodeImage: function() {},
_drawShapedText: function() {},
_getRasterDirectSurface: function() {},
_getRasterN32PremulSurface: function() {},
// The testing object is meant to expose internal functions
// for more fine-grained testing, e.g. parseColor
_testing: {},
// Objects and properties on CanvasKit
GrContext: {
// public API (from C++ bindings)
getResourceCacheLimitBytes: function() {},
getResourceCacheUsageBytes: function() {},
releaseResourcesAndAbandonContext: function() {},
setResourceCacheLimitBytes: function() {},
},
Paragraph: {
// public API (from C++ bindings)
didExceedMaxLines: function() {},
getAlphabeticBaseline: function() {},
getGlyphPositionAtCoordinate: function() {},
getHeight: function() {},
getIdeographicBaseline: function() {},
getLongestLine: function() {},
getMaxIntrinsicWidth: function() {},
getMaxWidth: function() {},
getMinIntrinsicWidth: function() {},
getWordBoundary: function() {},
layout: function() {},
// private API
/** @return {Float32Array} */
_getRectsForRange: function() {},
},
SkRuntimeEffect: {
// public API (from C++ bindings)
Make: function() {},
// private API
_makeShader: function() {},
_makeShaderWithChildren: function() {},
},
ParagraphStyle: function() {},
RSXFormBuilder: function() {},
SkColorBuilder: function() {},
SkRectBuilder: function() {},
ShapedText: {
// public API (from C++ bindings)
getBounds: function() {},
},
SkAnimatedImage: {
// public API (from C++ bindings)
decodeNextFrame: function() {},
getFrameCount: function() {},
getRepetitionCount: function() {},
height: function() {},
reset: function() {},
width: function() {},
},
SkCanvas: {
// public API (from C++ bindings)
clear: function() {},
clipPath: function() {},
clipRRect: function() {},
clipRect: function() {},
concat: function() {},
drawAnimatedImage: function() {},
drawArc: function() {},
drawCircle: function() {},
drawColor: function() {},
drawDRRect: function() {},
drawImage: function() {},
drawImageNine: function() {},
drawImageRect: function() {},
drawLine: function() {},
drawOval: function() {},
drawPaint: function() {},
drawParagraph: function() {},
drawPath: function() {},
drawPicture: function() {},
drawRRect: function() {},
drawRect: function() {},
drawRoundRect: function() {},
drawShadow: function() {},
drawText: function() {},
drawTextBlob: function() {},
drawVertices: function() {},
flush: function() {},
getSaveCount: function() {},
getTotalMatrix: function() {},
makeSurface: function() {},
restore: function() {},
restoreToCount: function() {},
rotate: function() {},
save: function() {},
saveLayer: function() {},
scale: function() {},
skew: function() {},
translate: function() {},
// private API
_drawAtlas: function() {},
_drawPoints: function() {},
_drawSimpleText: function() {},
_readPixels: function() {},
_writePixels: function() {},
delete: function() {},
},
SkColorFilter: {
// public API (from C++ bindings and JS interface)
MakeBlend: function() {},
MakeCompose: function() {},
MakeLerp: function() {},
MakeLinearToSRGBGamma: function() {},
MakeMatrix: function() {},
MakeSRGBToLinearGamma: function() {},
// private API (from C++ bindings)
_makeMatrix: function() {},
},
SkColorMatrix: {
concat: function() {},
identity: function() {},
postTranslate: function() {},
rotated: function() {},
scaled: function() {},
},
SkContourMeasureIter: {
next: function() {},
},
SkContourMeasure: {
getPosTan: function() {},
getSegment: function() {},
isClosed: function() {},
length: function() {},
},
SkFont: {
// public API (from C++ bindings)
getScaleX: function() {},
getSize: function() {},
getSkewX: function() {},
getTypeface: function() {},
measureText: function() {},
setHinting: function() {},
setLinearMetrics: function() {},
setScaleX: function() {},
setSize: function() {},
setSkewX: function() {},
setSubpixel: function() {},
setTypeface: function() {},
// private API (from C++ bindings)
_getWidths: function() {},
},
SkFontMgr: {
// public API (from C++ and JS bindings)
FromData: function() {},
RefDefault: function() {},
countFamilies: function() {},
getFamilyName: function() {},
// private API
_makeTypefaceFromData: function() {},
_fromData: function() {},
},
SkImage: {
// public API (from C++ bindings)
height: function() {},
width: function() {},
// private API
_encodeToData: function() {},
_encodeToDataWithFormat: function() {},
_makeShader: function() {},
},
SkImageFilter: {
MakeBlur: function() {},
MakeColorFilter: function() {},
MakeCompose: function() {},
MakeMatrixTransform: function() {},
},
// These are defined in interface.js
SkM44: {
identity: function() {},
invert: function() {},
multiply: function() {},
rotatedUnitSinCos: function() {},
rotated: function() {},
scaled: function() {},
translated: function() {},
lookat: function() {},
perspective: function() {},
rc: function() {},
transpose: function() {},
},
SkMatrix: {
identity: function() {},
invert: function() {},
mapPoints: function() {},
multiply: function() {},
rotated: function() {},
scaled: function() {},
skewed: function() {},
translated: function() {},
},
SkMaskFilter: {
MakeBlur: function() {},
},
SkPaint: {
// public API (from C++ bindings)
/** @return {CanvasKit.SkPaint} */
copy: function() {},
getBlendMode: function() {},
getColor: function() {},
getFilterQuality: function() {},
getStrokeCap: function() {},
getStrokeJoin: function() {},
getStrokeMiter: function() {},
getStrokeWidth: function() {},
setAntiAlias: function() {},
setBlendMode: function() {},
setColor: function() {},
setFilterQuality: function() {},
setImageFilter: function() {},
setMaskFilter: function() {},
setPathEffect: function() {},
setShader: function() {},
setStrokeCap: function() {},
setStrokeJoin: function() {},
setStrokeMiter: function() {},
setStrokeWidth: function() {},
setStyle: function() {},
// Private API
delete: function() {},
},
SkPathEffect: {
MakeCorner: function() {},
MakeDash: function() {},
MakeDiscrete: function() {},
// Private C++ API
_MakeDash: function() {},
},
SkParticleEffect: {
// public API (from C++ bindings)
draw: function() {},
getEffectUniform: function() {},
getEffectUniformCount: function() {},
getEffectUniformFloatCount: function() {},
getEffectUniformName: function() {},
getParticleUniformCount: function() {},
getParticleUniformFloatCount: function() {},
getParticleUniformName: function() {},
getParticleUniform: function() {},
setPosition: function() {},
setRate: function() {},
start: function() {},
update: function() {},
// private API (from C++ bindings)
_effectUniformPtr: function() {},
_particleUniformPtr: function() {},
},
SkPath: {
// public API (from C++ bindings)
computeTightBounds: function() {},
contains: function() {},
/** @return {CanvasKit.SkPath} */
copy: function() {},
countPoints: function() {},
equals: function() {},
getBounds: function() {},
getFillType: function() {},
getPoint: function() {},
isEmpty: function() {},
isVolatile: function() {},
reset: function() {},
rewind: function() {},
setFillType: function() {},
setIsVolatile: function() {},
toSVGString: function() {},
// private API
_addArc: function() {},
_addOval: function() {},
_addPath: function() {},
_addRect: function() {},
_addPoly: function() {},
_addRoundRect: function() {},
_arc: function() {},
_arcTo: function() {},
_close: function() {},
_conicTo: function() {},
_cubicTo: function() {},
_dash: function() {},
_lineTo: function() {},
_moveTo: function() {},
_op: function() {},
_quadTo: function() {},
_rArcTo: function() {},
_rConicTo: function() {},
_rCubicTo: function() {},
_rLineTo: function() {},
_rMoveTo: function() {},
_rQuadTo: function() {},
_rect: function() {},
_simplify: function() {},
_stroke: function() {},
_transform: function() {},
_trim: function() {},
delete: function() {},
dump: function() {},
dumpHex: function() {},
},
SkPathMeasure: {
getLength: function() {},
getSegment: function() {},
getPosTan: function() {},
isClosed: function() {},
nextContour: function() {},
},
SkPicture: {
serialize: function() {},
},
SkPictureRecorder: {
beginRecording: function() {},
finishRecordingAsPicture: function() {},
},
SkRect: {
fLeft: {},
fTop: {},
fRight: {},
fBottom: {},
},
SkRRect: {
rect: {},
rx1: {},
ry1: {},
rx2: {},
ry2: {},
rx3: {},
ry3: {},
rx4: {},
ry4: {},
},
SkShader: {
Blend: function() {},
Color: function() {},
Empty: function() {},
Lerp: function() {},
MakeLinearGradient: function() {},
MakeRadialGradient: function() {},
MakeTwoPointConicalGradient: function() {},
MakeSweepGradient: function() {},
},
SkSurface: {
// public API (from C++ bindings)
/** @return {CanvasKit.SkCanvas} */
getCanvas: function() {},
/** @return {CanvasKit.SkImage} */
makeImageSnapshot: function() {},
makeSurface: function() {},
grContext: {},
// private API
_flush: function() {},
_getRasterN32PremulSurface: function() {},
delete: function() {},
},
SkTextBlob: {
// public API (both C++ and JS bindings)
MakeFromRSXform: function() {},
MakeFromText: function() {},
MakeOnPath: function() {},
// private API (from C++ bindings)
_MakeFromRSXform: function() {},
_MakeFromText: function() {},
},
// These are defined in interface.js
SkVector: {
add: function() {},
sub: function() {},
dot: function() {},
cross: function() {},
normalize: function() {},
mulScalar: function() {},
length: function() {},
lengthSquared: function() {},
dist: function() {},
},
SkVertices: {
// public API (from C++ bindings)
bounds: function() {},
mode: function() {},
uniqueID: function() {},
vertexCount: function() {},
},
_SkVerticesBuilder: {
colors: function() {},
detach: function() {},
indices: function() {},
positions: function() {},
texCoords: function() {},
},
TextStyle: function() {},
// Constants and Enums
gpu: {},
skottie: {},
TRANSPARENT: {},
BLACK: {},
WHITE: {},
RED: {},
GREEN: {},
BLUE: {},
YELLOW: {},
CYAN: {},
MAGENTA: {},
MOVE_VERB: {},
LINE_VERB: {},
QUAD_VERB: {},
CONIC_VERB: {},
CUBIC_VERB: {},
CLOSE_VERB: {},
NoDecoration: {},
UnderlineDecoration: {},
OverlineDecoration: {},
LineThroughDecoration: {},
SaveLayerInitWithPrevious: {},
SaveLayerF16ColorType: {},
Affinity: {
Upstream: {},
Downstream: {},
},
AlphaType: {
Opaque: {},
Premul: {},
Unpremul: {},
},
BlendMode: {
Clear: {},
Src: {},
Dst: {},
SrcOver: {},
DstOver: {},
SrcIn: {},
DstIn: {},
SrcOut: {},
DstOut: {},
SrcATop: {},
DstATop: {},
Xor: {},
Plus: {},
Modulate: {},
Screen: {},
Overlay: {},
Darken: {},
Lighten: {},
ColorDodge: {},
ColorBurn: {},
HardLight: {},
SoftLight: {},
Difference: {},
Exclusion: {},
Multiply: {},
Hue: {},
Saturation: {},
Color: {},
Luminosity: {},
},
BlurStyle: {
Normal: {},
Solid: {},
Outer: {},
Inner: {},
},
ClipOp: {
Difference: {},
Intersect: {},
},
ColorType: {
Alpha_8: {},
RGB_565: {},
ARGB_4444: {},
RGBA_8888: {},
RGB_888x: {},
BGRA_8888: {},
RGBA_1010102: {},
RGB_101010x: {},
Gray_8: {},
RGBA_F16: {},
RGBA_F32: {},
},
FillType: {
Winding: {},
EvenOdd: {},
},
FilterQuality: {
None: {},
Low: {},
Medium: {},
High: {},
},
FontSlant: {
Upright: {},
Italic: {},
Oblique: {},
},
FontHinting: {
None: {},
Slight: {},
Normal: {},
Full: {},
},
FontWeight: {
Invisible: {},
Thin: {},
ExtraLight: {},
Light: {},
Normal: {},
Medium: {},
SemiBold: {},
Bold: {},
ExtraBold: {},
Black: {},
ExtraBlack: {},
},
FontWidth: {
UltraCondensed: {},
ExtraCondensed: {},
Condensed: {},
SemiCondensed: {},
Normal: {},
SemiExpanded: {},
Expanded: {},
ExtraExpanded: {},
UltraExpanded: {},
},
ImageFormat: {
PNG: {},
JPEG: {},
},
PaintStyle: {
Fill: {},
Stroke: {},
},
PathOp: {
Difference: {},
Intersect: {},
Union: {},
XOR: {},
ReverseDifference: {},
},
PointMode: {
Points: {},
Lines: {},
Polygon: {},
},
RectHeightStyle: {
Tight: {},
Max: {},
IncludeLineSpacingMiddle: {},
IncludeLineSpacingTop: {},
IncludeLineSpacingBottom: {},
},
RectWidthStyle: {
Tight: {},
Max: {},
},
StrokeCap: {
Butt: {},
Round: {},
Square: {},
},
StrokeJoin: {
Miter: {},
Round: {},
Bevel: {},
},
TextAlign: {
Left: {},
Right: {},
Center: {},
Justify: {},
Start: {},
End: {},
},
TextDirection: {
LTR: {},
RTL: {},
},
TileMode: {
Clamp: {},
Repeat: {},
Mirror: {},
Decal: {},
},
VertexMode: {
Triangles: {},
TrianglesStrip: {},
TriangleFan: {},
},
// Things Enscriptem adds for us
/**
* @type {Float32Array}
*/
HEAPF32: {},
/**
* @type {Float64Array}
*/
HEAPF64: {},
/**
* @type {Uint8Array}
*/
HEAPU8: {},
/**
* @type {Uint16Array}
*/
HEAPU16: {},
/**
* @type {Uint32Array}
*/
HEAPU32: {},
/**
* @type {Int8Array}
*/
HEAP8: {},
/**
* @type {Int16Array}
*/
HEAP16: {},
/**
* @type {Int32Array}
*/
HEAP32: {},
_malloc: function() {},
_free: function() {},
onRuntimeInitialized: function() {},
};
// Public API things that are newly declared in the JS should go here.
// It's not enough to declare them above, because closure can still erase them
// unless they go on the prototype.
CanvasKit.Paragraph.prototype.getRectsForRange = function() {};
CanvasKit.SkPath.prototype.addArc = function() {};
CanvasKit.SkPath.prototype.addOval = function() {};
CanvasKit.SkPath.prototype.addPath = function() {};
CanvasKit.SkPath.prototype.addPoly = function() {};
CanvasKit.SkPath.prototype.addRect = function() {};
CanvasKit.SkPath.prototype.addRoundRect = function() {};
CanvasKit.SkPath.prototype.arc = function() {};
CanvasKit.SkPath.prototype.arcTo = function() {};
CanvasKit.SkPath.prototype.close = function() {};
CanvasKit.SkPath.prototype.conicTo = function() {};
CanvasKit.SkPath.prototype.cubicTo = function() {};
CanvasKit.SkPath.prototype.dash = function() {};
CanvasKit.SkPath.prototype.lineTo = function() {};
CanvasKit.SkPath.prototype.moveTo = function() {};
CanvasKit.SkPath.prototype.offset = function() {};
CanvasKit.SkPath.prototype.op = function() {};
CanvasKit.SkPath.prototype.quadTo = function() {};
CanvasKit.SkPath.prototype.rArcTo = function() {};
CanvasKit.SkPath.prototype.rConicTo = function() {};
CanvasKit.SkPath.prototype.rCubicTo = function() {};
CanvasKit.SkPath.prototype.rLineTo = function() {};
CanvasKit.SkPath.prototype.rMoveTo = function() {};
CanvasKit.SkPath.prototype.rQuadTo = function() {};
CanvasKit.SkPath.prototype.rect = function() {};
CanvasKit.SkPath.prototype.simplify = function() {};
CanvasKit.SkPath.prototype.stroke = function() {};
CanvasKit.SkPath.prototype.transform = function() {};
CanvasKit.SkPath.prototype.trim = function() {};
CanvasKit.SkPicture.prototype.saveAsFile = function() {};
CanvasKit.SkSurface.prototype.dispose = function() {};
CanvasKit.SkSurface.prototype.flush = function() {};
CanvasKit.SkSurface.prototype.requestAnimationFrame = function() {};
CanvasKit.SkSurface.prototype.drawOnce = function() {};
CanvasKit.SkSurface.prototype.captureFrameAsSkPicture = function() {};
CanvasKit.SkImage.prototype.encodeToData = function() {};
CanvasKit.SkImage.prototype.makeShader = function() {};
CanvasKit.SkCanvas.prototype.drawAtlas = function() {};
CanvasKit.SkCanvas.prototype.drawPoints = function() {};
CanvasKit.SkCanvas.prototype.drawText = function() {};
/** @return {Uint8Array} */
CanvasKit.SkCanvas.prototype.readPixels = function() {};
CanvasKit.SkCanvas.prototype.writePixels = function() {};
CanvasKit.SkFontMgr.prototype.MakeTypefaceFromData = function() {};
CanvasKit.SkFont.prototype.getWidths = function() {};
CanvasKit.RSXFormBuilder.prototype.build = function() {};
CanvasKit.RSXFormBuilder.prototype.delete = function() {};
CanvasKit.RSXFormBuilder.prototype.push = function() {};
CanvasKit.RSXFormBuilder.prototype.set = function() {};
CanvasKit.SkColorBuilder.prototype.build = function() {};
CanvasKit.SkColorBuilder.prototype.delete = function() {};
CanvasKit.SkColorBuilder.prototype.push = function() {};
CanvasKit.SkColorBuilder.prototype.set = function() {};
CanvasKit.SkRuntimeEffect.prototype.makeShader = function() {};
CanvasKit.SkRuntimeEffect.prototype.makeShaderWithChildren = function() {};
CanvasKit.SkParticleEffect.prototype.effectUniforms = function() {};
CanvasKit.SkParticleEffect.prototype.particleUniforms = function() {};
// Define StrokeOpts object
var StrokeOpts = {};
StrokeOpts.prototype.width;
StrokeOpts.prototype.miter_limit;
StrokeOpts.prototype.cap;
StrokeOpts.prototype.join;
StrokeOpts.prototype.precision;
// Define everything created in the canvas2d spec here
var HTMLCanvas = {};
HTMLCanvas.prototype.decodeImage = function() {};
HTMLCanvas.prototype.dispose = function() {};
HTMLCanvas.prototype.getContext = function() {};
HTMLCanvas.prototype.loadFont = function() {};
HTMLCanvas.prototype.makePath2D = function() {};
HTMLCanvas.prototype.toDataURL = function() {};
var CanvasRenderingContext2D = {};
CanvasRenderingContext2D.prototype.addHitRegion = function() {};
CanvasRenderingContext2D.prototype.arc = function() {};
CanvasRenderingContext2D.prototype.arcTo = function() {};
CanvasRenderingContext2D.prototype.beginPath = function() {};
CanvasRenderingContext2D.prototype.bezierCurveTo = function() {};
CanvasRenderingContext2D.prototype.clearHitRegions = function() {};
CanvasRenderingContext2D.prototype.clearRect = function() {};
CanvasRenderingContext2D.prototype.clip = function() {};
CanvasRenderingContext2D.prototype.closePath = function() {};
CanvasRenderingContext2D.prototype.createImageData = function() {};
CanvasRenderingContext2D.prototype.createLinearGradient = function() {};
CanvasRenderingContext2D.prototype.createPattern = function() {};
CanvasRenderingContext2D.prototype.createRadialGradient = function() {};
CanvasRenderingContext2D.prototype.drawFocusIfNeeded = function() {};
CanvasRenderingContext2D.prototype.drawImage = function() {};
CanvasRenderingContext2D.prototype.ellipse = function() {};
CanvasRenderingContext2D.prototype.fill = function() {};
CanvasRenderingContext2D.prototype.fillRect = function() {};
CanvasRenderingContext2D.prototype.fillText = function() {};
CanvasRenderingContext2D.prototype.getImageData = function() {};
CanvasRenderingContext2D.prototype.getLineDash = function() {};
CanvasRenderingContext2D.prototype.isPointInPath = function() {};
CanvasRenderingContext2D.prototype.isPointInStroke = function() {};
CanvasRenderingContext2D.prototype.lineTo = function() {};
CanvasRenderingContext2D.prototype.measureText = function() {};
CanvasRenderingContext2D.prototype.moveTo = function() {};
CanvasRenderingContext2D.prototype.putImageData = function() {};
CanvasRenderingContext2D.prototype.quadraticCurveTo = function() {};
CanvasRenderingContext2D.prototype.rect = function() {};
CanvasRenderingContext2D.prototype.removeHitRegion = function() {};
CanvasRenderingContext2D.prototype.resetTransform = function() {};
CanvasRenderingContext2D.prototype.restore = function() {};
CanvasRenderingContext2D.prototype.rotate = function() {};
CanvasRenderingContext2D.prototype.save = function() {};
CanvasRenderingContext2D.prototype.scale = function() {};
CanvasRenderingContext2D.prototype.scrollPathIntoView = function() {};
CanvasRenderingContext2D.prototype.setLineDash = function() {};
CanvasRenderingContext2D.prototype.setTransform = function() {};
CanvasRenderingContext2D.prototype.stroke = function() {};
CanvasRenderingContext2D.prototype.strokeRect = function() {};
CanvasRenderingContext2D.prototype.strokeText = function() {};
CanvasRenderingContext2D.prototype.transform = function() {};
CanvasRenderingContext2D.prototype.translate = function() {};
var Path2D = {};
Path2D.prototype.addPath = function() {};
Path2D.prototype.arc = function() {};
Path2D.prototype.arcTo = function() {};
Path2D.prototype.bezierCurveTo = function() {};
Path2D.prototype.closePath = function() {};
Path2D.prototype.ellipse = function() {};
Path2D.prototype.lineTo = function() {};
Path2D.prototype.moveTo = function() {};
Path2D.prototype.quadraticCurveTo = function() {};
Path2D.prototype.rect = function() {};
var LinearCanvasGradient = {};
LinearCanvasGradient.prototype.addColorStop = function() {};
var RadialCanvasGradient = {};
RadialCanvasGradient.prototype.addColorStop = function() {};
var CanvasPattern = {};
CanvasPattern.prototype.setTransform = function() {};
var ImageData = {
/**
* @type {Uint8ClampedArray}
*/
data: {},
height: {},
width: {},
};
var DOMMatrix = {
a: {},
b: {},
c: {},
d: {},
e: {},
f: {},
};
// Not sure why this is needed - might be a bug in emsdk that this isn't properly declared.
function loadWebAssemblyModule() {};