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fix(unowasm): Adds missing Uno.WinUI javascript support file (#2086)
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171 changes: 171 additions & 0 deletions
171
...kiaSharp.Views.Uno/SkiaSharp.Views.Uno.WinUI.Wasm/WasmScripts/SkiaSharp.Views.Uno.Wasm.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| var SkiaSharp; | ||
| (function (SkiaSharp) { | ||
| var Views; | ||
| (function (Views) { | ||
| var Windows; | ||
| (function (Windows) { | ||
|
|
||
| class SKXamlCanvas { | ||
| static invalidateCanvas(pData, canvasId, width, height) { | ||
| var htmlCanvas = document.getElementById(canvasId); | ||
| htmlCanvas.width = width; | ||
| htmlCanvas.height = height; | ||
|
|
||
| var ctx = htmlCanvas.getContext('2d'); | ||
| if (!ctx) | ||
| return false; | ||
|
|
||
| var buffer = new Uint8ClampedArray(Module.HEAPU8.buffer, pData, width * height * 4); | ||
| var imageData = new ImageData(buffer, width, height); | ||
| ctx.putImageData(imageData, 0, 0); | ||
|
|
||
| return true; | ||
| } | ||
| } | ||
|
|
||
| class SKSwapChainPanel { | ||
| static activeInstances = {}; | ||
|
|
||
| constructor(managedHandle) { | ||
| this.managedHandle = managedHandle; | ||
| this.canvas = undefined; | ||
| this.jsInfo = undefined; | ||
| this.renderLoop = false; | ||
| this.currentRequest = 0; | ||
| } | ||
|
|
||
| // JSObject | ||
| static createInstance(managedHandle, jsHandle) { | ||
| SKSwapChainPanel.activeInstances[jsHandle] = new SKSwapChainPanel(managedHandle); | ||
| } | ||
| static getInstance(jsHandle) { | ||
| return SKSwapChainPanel.activeInstances[jsHandle]; | ||
| } | ||
| static destroyInstance(jsHandle) { | ||
| delete SKSwapChainPanel.activeInstances[jsHandle]; | ||
| } | ||
|
|
||
| requestAnimationFrame(renderLoop) { | ||
| // optionally update the render loop | ||
| if (renderLoop !== undefined && this.renderLoop !== renderLoop) | ||
| this.setEnableRenderLoop(renderLoop); | ||
|
|
||
| // skip because we have a render loop | ||
| if (this.currentRequest !== 0) | ||
| return; | ||
|
|
||
| // make sure the canvas is scaled correctly for the drawing | ||
| this.resizeCanvas(); | ||
|
|
||
| // add the draw to the next frame | ||
| this.currentRequest = window.requestAnimationFrame(() => { | ||
| Uno.Foundation.Interop.ManagedObject.dispatch(this.managedHandle, 'RenderFrame', null); | ||
|
|
||
| this.currentRequest = 0; | ||
|
|
||
| // we may want to draw the next frame | ||
| if (this.renderLoop) | ||
| this.requestAnimationFrame(); | ||
| }); | ||
| } | ||
|
|
||
| resizeCanvas() { | ||
| if (!this.canvas) | ||
| return; | ||
|
|
||
| var scale = window.devicePixelRatio || 1; | ||
| var w = this.canvas.clientWidth * scale | ||
| var h = this.canvas.clientHeight * scale; | ||
|
|
||
| if (this.canvas.width !== w) | ||
| this.canvas.width = w; | ||
| if (this.canvas.height !== h) | ||
| this.canvas.height = h; | ||
| } | ||
|
|
||
| setEnableRenderLoop(enable) { | ||
| this.renderLoop = enable; | ||
|
|
||
| // either start the new frame or cancel the existing one | ||
| if (enable) { | ||
| this.requestAnimationFrame(); | ||
| } else if (this.currentRequest !== 0) { | ||
| window.cancelAnimationFrame(this.currentRequest); | ||
| this.currentRequest = 0; | ||
| } | ||
| } | ||
|
|
||
| createContext(canvasOrCanvasId) { | ||
| if (!canvasOrCanvasId) | ||
| throw 'No <canvas> element or ID was provided'; | ||
|
|
||
| var canvas = canvasOrCanvasId; | ||
| if (canvas.tagName !== 'CANVAS') { | ||
| canvas = document.getElementById(canvasOrCanvasId); | ||
| if (!canvas) | ||
| throw `No <canvas> with id ${canvasOrCanvasId} was found`; | ||
| } | ||
|
|
||
| var ctx = SKSwapChainPanel.createWebGLContext(canvas); | ||
| if (!ctx || ctx < 0) | ||
| throw `Failed to create WebGL context: err ${ctx}`; | ||
|
|
||
| // make current | ||
| GL.makeContextCurrent(ctx); | ||
|
|
||
| // read values | ||
| this.canvas = canvas; | ||
| var info = { | ||
| ctx: ctx, | ||
| fbo: GLctx.getParameter(GLctx.FRAMEBUFFER_BINDING), | ||
| stencil: GLctx.getParameter(GLctx.STENCIL_BITS), | ||
| sample: 0, // TODO: GLctx.getParameter(GLctx.SAMPLES) | ||
| depth: GLctx.getParameter(GLctx.DEPTH_BITS), | ||
| }; | ||
|
|
||
| // format as array for nicer parsing | ||
| this.jsInfo = [ | ||
| info.ctx, | ||
| info.fbo ? info.fbo.id : 0, | ||
| info.stencil, | ||
| info.sample, | ||
| info.depth, | ||
| ]; | ||
| return this.jsInfo; | ||
| } | ||
|
|
||
| static createWebGLContext(canvas) { | ||
| var contextAttributes = { | ||
| alpha: 1, | ||
| depth: 1, | ||
| stencil: 8, | ||
| antialias: 1, | ||
| premultipliedAlpha: 1, | ||
| preserveDrawingBuffer: 0, | ||
| preferLowPowerToHighPerformance: 0, | ||
| failIfMajorPerformanceCaveat: 0, | ||
| majorVersion: 2, | ||
| minorVersion: 0, | ||
| enableExtensionsByDefault: 1, | ||
| explicitSwapControl: 0, | ||
| renderViaOffscreenBackBuffer: 0, | ||
| }; | ||
|
|
||
| var ctx = GL.createContext(canvas, contextAttributes); | ||
| if (!ctx && contextAttributes.majorVersion > 1) { | ||
| console.warn('Falling back to WebGL 1.0'); | ||
| contextAttributes.majorVersion = 1; | ||
| contextAttributes.minorVersion = 0; | ||
| ctx = GL.createContext(canvas, contextAttributes); | ||
| } | ||
|
|
||
| return ctx; | ||
| } | ||
| } | ||
|
|
||
| Windows.SKXamlCanvas = SKXamlCanvas; | ||
| Windows.SKSwapChainPanel = SKSwapChainPanel; | ||
|
|
||
| })(Windows = Views.Windows || (Views.Windows = {})); | ||
| })(Views = SkiaSharp.Views || (SkiaSharp.Views = {})); | ||
| })(SkiaSharp || (SkiaSharp = {})); |