q5.min.js

/**
 * q5.js
 * @version 2.9
 * @author quinton-ashley, Tezumie, and LingDong-
 * @license LGPL-3.0
 * @class Q5
 */
function Q5(e,t,r){let a=this;a._q5=!0,a._parent=t,a._renderer=r||"q2d",a._preloadCount=0;let n,o="auto"==e;if(e??="global","auto"==e){if(!window.setup&&!window.draw)return;e="global"}a._scope=e,"global"==e&&(Q5._hasGlobal=a._isGlobal=!0,n=Q5._nodejs?global:window);let i=new Proxy(a,{set:(e,t,r)=>(a[t]=r,a._isGlobal&&(n[t]=r),!0)});a.canvas=a.ctx=a.drawingContext=null,a.pixels=[];let s=null;a.frameCount=0,a.deltaTime=16,a._targetFrameRate=0,a._targetFrameDuration=16.666666666666668,a._frameRate=a._fps=60,a._loop=!0,a._hooks={postCanvas:[],preRender:[],postRender:[]};let l=0;a.millis=()=>performance.now()-l,a.noCanvas=()=>{a.canvas?.remove&&a.canvas.remove(),a.canvas=0,i.ctx=i.drawingContext=0},window&&(a.windowWidth=window.innerWidth,a.windowHeight=window.innerHeight,a.deviceOrientation=window.screen?.orientation?.type),a._incrementPreload=()=>i._preloadCount++,a._decrementPreload=()=>i._preloadCount--,a._draw=e=>{let t=e||performance.now();if(a._lastFrameTime??=t-a._targetFrameDuration,a._didResize&&(a.windowResized(),a._didResize=!1),a._loop)s=c(a._draw);else if(a.frameCount&&!a._redraw)return;if(s&&a.frameCount){if(t-a._lastFrameTime<a._targetFrameDuration-4)return}i.deltaTime=t-a._lastFrameTime,a._frameRate=1e3/a.deltaTime,i.frameCount++;let r=performance.now();a.resetMatrix(),a._beginRender&&a._beginRender();for(let e of Q5.methods.pre)e.call(a);try{a.draw()}catch(e){throw!Q5.disableFriendlyErrors&&a._askAI&&a._askAI(e),Q5.errorTolerant||a.noLoop(),e}for(let e of Q5.methods.post)e.call(a);a._render&&a._render(),a._finishRender&&a._finishRender(),i.pmouseX=a.mouseX,i.pmouseY=a.mouseY,i.moveX=i.moveY=0,a._lastFrameTime=t;let n=performance.now();a._fps=Math.round(1e3/(n-r))},a.noLoop=()=>{a._loop=!1,s=null},a.loop=()=>{a._loop=!0,null==s&&a._draw()},a.isLooping=()=>a._loop,a.redraw=(e=1)=>{a._redraw=!0;for(let t=0;t<e;t++)a._draw();a._redraw=!1},a.remove=()=>{a.noLoop(),a.canvas.remove()},a.frameRate=e=>(e&&(a._targetFrameRate=e,a._targetFrameDuration=1e3/e),a._frameRate),a.getTargetFrameRate=()=>a._targetFrameRate||60,a.getFPS=()=>a._fps,a.Element=function(e){this.elt=e},a._elements=[],a.TWO_PI=a.TAU=2*Math.PI,a.log=a.print=console.log,a.describe=()=>{};for(let e in Q5.modules)Q5.modules[e](a,i);let d=Q5.renderers[a._renderer];for(let e in d)d[e](a,i);for(let e in Q5)"_"!=e[1]&&e[1]==e[1].toUpperCase()&&(a[e]=Q5[e]);if("graphics"==e)return;"global"==e&&(Object.assign(Q5,a),delete Q5.Q5);for(let e of Q5.methods.init)e.call(a);for(let[e,t]of Object.entries(Q5.prototype))"_"!=e[0]&&"function"==typeof a[e]&&(a[e]=t.bind(a));if("global"==e){let e=Object.getOwnPropertyNames(a);for(let t of e)"_"!=t[0]&&(n[t]=a[t])}"function"==typeof e&&e(a),Q5._instanceCount++;let c=window.requestAnimationFrame||function(e){const t=a._lastFrameTime+a._targetFrameDuration;return 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Object.entries(g))e.blendConfigs[t]={color:{srcFactor:f[r[0]],dstFactor:f[r[1]],operation:_[r[2]]},alpha:{srcFactor:f[r[3]],dstFactor:f[r[4]],operation:_[r[5]]}};e._blendMode="normal",e.blendMode=t=>{if(t!=e._blendMode){"source-over"==t&&(t="normal"),"lighter"==t&&(t="additive"),t=t.toLowerCase().replace(/[ -]/g,"_"),e._blendMode=t;for(let r=0;r<e._pipelines.length;r++)e._pipelineConfigs[r].fragment.targets[0].blend=e.blendConfigs[t],e._pipelines[r]=Q5.device.createRenderPipeline(e._pipelineConfigs[r])}},e.clear=()=>{},e._beginRender=()=>{e.encoder=Q5.device.createCommandEncoder(),a=t.pass=e.encoder.beginRenderPass({label:"q5-webgpu",colorAttachments:[{view:n,resolveTarget:e.ctx.getCurrentTexture().createView(),loadOp:"clear",storeOp:"store"}]})},e._render=()=>{if(p.length>1||!e._transformBindGroup){let t=Q5.device.createBuffer({size:64*p.length,usage:GPUBufferUsage.STORAGE|GPUBufferUsage.COPY_DST,mappedAtCreation:!0});new Float32Array(t.getMappedRange()).set(p.flat()),t.unmap(),e._transformBindGroup=Q5.device.createBindGroup({layout:e._transformLayout,entries:[{binding:0,resource:{buffer:c}},{binding:1,resource:{buffer:t}}]})}a.setBindGroup(0,e._transformBindGroup);let t=Q5.device.createBuffer({size:4*s,usage:GPUBufferUsage.STORAGE|GPUBufferUsage.COPY_DST,mappedAtCreation:!0});new Float32Array(t.getMappedRange()).set(d.slice(0,s)),t.unmap(),e._colorsBindGroup=Q5.device.createBindGroup({layout:o,entries:[{binding:0,resource:{buffer:t}}]}),e.pass.setBindGroup(1,e._colorsBindGroup);for(let t of e._hooks.preRender)t();let r=0,n=0,i=0,h=-1;for(let t=0;t<l.length;t+=2){let o=l[t+1];if(h!=l[t]&&(h=l[t],a.setPipeline(e._pipelines[h])),0==h)a.draw(o,1,r),r+=o;else if(1==h)-1!=o&&a.setBindGroup(2,e._textureBindGroups[o]),a.draw(4,1,n),n+=4;else if(2==h){let r=l[t+2];a.setBindGroup(2,e._fonts[r].bindGroup),a.setBindGroup(3,e._textBindGroup),a.draw(4,o,0,i),i+=o,t++}}for(let t of 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color;\n}\n"}),d=Q5.device.createPipelineLayout({label:"drawingPipelineLayout",bindGroupLayouts:e.bindGroupLayouts});e._pipelineConfigs[0]={label:"drawingPipeline",layout:d,vertex:{module:s,entryPoint:"vertexMain",buffers:[{arrayStride:16,attributes:[{format:"float32x2",offset:0,shaderLocation:0},{format:"float32",offset:8,shaderLocation:1},{format:"float32",offset:12,shaderLocation:2}]}]},fragment:{module:l,entryPoint:"fragmentMain",targets:[{format:"bgra8unorm",blend:e.blendConfigs.normal}]},primitive:{topology:"triangle-strip",stripIndexFormat:"uint32"},multisample:{count:4}},e._pipelines[0]=Q5.device.createRenderPipeline(e._pipelineConfigs[0]);const c=(e,t,r,a)=>{let n=o,s=i;n[s++]=e,n[s++]=t,n[s++]=r,n[s++]=a,i=s},h=(e,t,r,a,s,l,d,c,h,u)=>{let p=o,f=i;p[f++]=e,p[f++]=t,p[f++]=h,p[f++]=u,p[f++]=r,p[f++]=a,p[f++]=h,p[f++]=u,p[f++]=d,p[f++]=c,p[f++]=h,p[f++]=u,p[f++]=s,p[f++]=l,p[f++]=h,p[f++]=u,i=f,n.push(0,4)},u=(t,r,a,s,l,d,c)=>{r=-r;let h=0,u=e.TAU/l,p=o,f=i;for(let e=0;e<=l;e++){p[f++]=t,p[f++]=r,p[f++]=d,p[f++]=c;let e=t+a*Math.cos(h),n=r+s*Math.sin(h);p[f++]=e,p[f++]=n,p[f++]=d,p[f++]=c,h+=u}p[f++]=t,p[f++]=r,p[f++]=d,p[f++]=c,p[f++]=t+a,p[f++]=r,p[f++]=d,p[f++]=c,i=f,n.push(0,2*(l+1)+2)};e.rectMode=t=>e._rectMode=t,e.rect=(t,a,n,o)=>{let i,s,[l,d,c,u]=e._calcBox(t,a,n,o,e._rectMode);if(e._matrixDirty&&e._saveMatrix(),s=e._transformIndex,e._doStroke){i=e._stroke;let t=e._strokeWeight/2;if(e._doFill){let e=c+t,r=u-t,a=l-t,n=d+t;h(a,e,n,e,n,r,a,r,i,s),c-=t,u+=t,l+=t,d-=t}else{let e=l-t,r=d+t,a=c+t,n=u-t,o=l+t,p=d-t,f=c-t,_=u+t;h(e,f,r,f,r,a,e,a,i,s),h(e,n,r,n,r,_,e,_,i,s),h(e,a,o,a,o,n,e,n,i,s),h(p,a,r,a,r,n,p,n,i,s)}}e._doFill&&(i=r??e._fill,h(l,c,d,c,d,u,l,u,i,s))},e.square=(t,r,a)=>e.rect(t,r,a,a);let p;e.ellipseMode=t=>e._ellipseMode=t,e.ellipse=(t,a,n,o)=>{let i=(s=n==o?n:Math.max(n,o))<4?6:s<6?8:s<10?10:s<16?12:s<20?14:s<22?16:s<24?18:s<28?20:s<34?22:s<42?24:s<48?26:s<56?28:s<64?30:s<72?32:s<84?34:s<96?36:s<98?38:s<113?40:s<149?44:s<199?48:s<261?52:s<353?56:s<461?60:s<585?64:s<1200?70:s<1800?80:s<2400?90:100;var s;let l=Math.max(n,1)/2,d=n==o?l:Math.max(o,1)/2;e._matrixDirty&&e._saveMatrix();let c=e._transformIndex;if(e._doStroke){let r=e._strokeWeight/2;u(t,a,l+r,d+r,i,e._stroke,c),l-=r,d-=r}e._doFill&&u(t,a,l,d,i,r??e._fill,c)},e.circle=(t,r,a)=>e.ellipse(t,r,a,a),e.point=(t,a)=>{r=e._stroke,e._doStroke=!1;let n=e._strokeWeight;n<2?(n=Math.round(n),e.rect(t,a,n,n)):e.ellipse(t,a,n,n),e._doStroke=!0,r=null},e.line=(t,a,n,o)=>{r=e._stroke,e.push(),e._doStroke=!1,e.translate(t,-a),e.rotate(e.atan2(o-a,n-t));let i=Math.sqrt((n-t)**2+(o-a)**2),s=e._strokeWeight,l=s/2;e._rectMode="corner",s<4?e.rect(-l,-l,i+l,s):(e._ellipseMode="center",e.ellipse(0,0,s,s),e.ellipse(i,0,s,s),e.rect(0,-l,i,s)),e.pop(),r=null};let f=[];e.beginShape=()=>{p=0,f=[]},e.vertex=(t,r)=>{e._matrixDirty&&e._saveMatrix(),f.push(t,-r,e._fill,e._transformIndex),p++},e.endShape=t=>{if(p<3)throw new Error("A shape must have at least 3 vertices.");if(t){let e=0,t=4*(p-1),r=f[e],a=f[e+1],n=f[t],o=f[t+1];r===n&&a===o||(f.push(r,a,f[e+2],f[e+3]),p++)}if(e._doFill){for(let e=1;e<p-1;e++){let t=0,r=4*e,a=4*(e+1);c(f[t],f[t+1],f[t+2],f[t+3]),c(f[r],f[r+1],f[r+2],f[r+3]),c(f[a],f[a+1],f[a+2],f[a+3])}n.push(0,3*(p-2))}if(e._doStroke){for(let t=0;t<p-1;t++){let r=4*t,a=4*(t+1);e.line(f[r],f[r+1],f[a],f[a+1])}if(t){let t=4*(p-1),r=0;e.line(f[t],f[t+1],f[r],f[r+1])}}p=0,f=[]},e.triangle=(t,r,a,n,o,i)=>{e.beginShape(),e.vertex(t,r),e.vertex(a,n),e.vertex(o,i),e.endShape(!0)},e.quad=(t,r,a,n,o,i,s,l)=>{e.beginShape(),e.vertex(t,r),e.vertex(a,n),e.vertex(o,i),e.vertex(s,l),e.endShape(!0)},e.background=(t,r,n,o)=>{if(e.push(),e.resetMatrix(),e._doStroke=!1,t.src){let r=e._imageMode;e._imageMode="corner",e.image(t,-a.hw,-a.hh,a.w,a.h),e._imageMode=r}else{let i=e._rectMode;e._rectMode="corner",e.fill(t,r,n,o),e.rect(-a.hw,-a.hh,a.w,a.h),e._rectMode=i}e.pop(),e._fillSet||(e._fill=1)},e._hooks.preRender.push((()=>{e.pass.setPipeline(e._pipelines[0]);let t=Q5.device.createBuffer({size:4*i,usage:GPUBufferUsage.VERTEX|GPUBufferUsage.COPY_DST,mappedAtCreation:!0});new Float32Array(t.getMappedRange()).set(o.slice(0,i)),t.unmap(),e.pass.setVertexBuffer(0,t)})),e._hooks.postRender.push((()=>{i=0}))},Q5.renderers.webgpu.image=(e,t)=>{e._textureBindGroups=[];let r=[],a=Q5.device.createShaderModule({label:"imageVertexShader",code:"\nstruct VertexOutput {\n\t@builtin(position) position: vec4f,\n\t@location(0) texCoord: vec2f\n}\nstruct Uniforms {\n\thalfWidth: f32,\n\thalfHeight: f32\n}\n\n@group(0) @binding(0) var<uniform> uniforms: Uniforms;\n@group(0) @binding(1) var<storage> transforms: array<mat4x4<f32>>;\n\n@vertex\nfn vertexMain(@location(0) pos: vec2f, @location(1) texCoord: vec2f, @location(2) transformIndex: f32) -> VertexOutput {\n\tvar vert = vec4f(pos, 0.0, 1.0);\n\tvert = transforms[i32(transformIndex)] * vert;\n\tvert.x /= uniforms.halfWidth;\n\tvert.y /= uniforms.halfHeight;\n\n\tvar output: VertexOutput;\n\toutput.position = vert;\n\toutput.texCoord = texCoord;\n\treturn output;\n}\n\t"}),n=Q5.device.createShaderModule({label:"imageFragmentShader",code:"\n@group(2) @binding(0) var samp: sampler;\n@group(2) @binding(1) var texture: texture_2d<f32>;\n\n@fragment\nfn fragmentMain(@location(0) texCoord: vec2f) -> @location(0) vec4f {\n\t// Sample the texture using the interpolated texture coordinate\n\treturn textureSample(texture, samp, texCoord);\n}\n\t"}),o=Q5.device.createBindGroupLayout({label:"textureLayout",entries:[{binding:0,visibility:GPUShaderStage.FRAGMENT,sampler:{type:"filtering"}},{binding:1,visibility:GPUShaderStage.FRAGMENT,texture:{viewDimension:"2d",sampleType:"float"}}]});const i=Q5.device.createPipelineLayout({label:"imagePipelineLayout",bindGroupLayouts:[...e.bindGroupLayouts,o]});e._pipelineConfigs[1]={label:"imagePipeline",layout:i,vertex:{module:a,entryPoint:"vertexMain",buffers:[{arrayStride:0,attributes:[]},{arrayStride:20,attributes:[{shaderLocation:0,offset:0,format:"float32x2"},{shaderLocation:1,offset:8,format:"float32x2"},{shaderLocation:2,offset:16,format:"float32"}]}]},fragment:{module:n,entryPoint:"fragmentMain",targets:[{format:"bgra8unorm",blend:e.blendConfigs.normal}]},primitive:{topology:"triangle-strip",stripIndexFormat:"uint32"},multisample:{count:4}},e._pipelines[1]=Q5.device.createRenderPipeline(e._pipelineConfigs[1]);let s=Q5.device.createSampler({magFilter:"linear",minFilter:"linear"});e._textures=[];let l=0;e._createTexture=t=>{t.canvas&&(t=t.canvas);let r=[t.width,t.height,1],a=Q5.device.createTexture({size:r,format:"bgra8unorm",usage:GPUTextureUsage.TEXTURE_BINDING|GPUTextureUsage.COPY_DST|GPUTextureUsage.RENDER_ATTACHMENT});Q5.device.queue.copyExternalImageToTexture({source:t},{texture:a,colorSpace:e.canvas.colorSpace},r),e._textures[l]=a,t.textureIndex=l;const n=Q5.device.createBindGroup({layout:o,entries:[{binding:0,resource:s},{binding:1,resource:a.createView()}]});e._textureBindGroups[l]=n,l=(l+1)%12e3,e._textures[l]&&(e._textures[l].destroy(),delete e._textures[l],delete e._textureBindGroups[l])},e.loadImage=(r,a)=>{t._preloadCount++;const n=new Image;return n.crossOrigin="Anonymous",n.onload=()=>{n.defaultWidth=n.width*e._defaultImageScale,n.defaultHeight=n.height*e._defaultImageScale,n.pixelDensity=1,e._createTexture(n),t._preloadCount--,a&&a(n)},n.src=r,n},e.imageMode=t=>e._imageMode=t,e.image=(t,a,n,o,i,s=0,l=0,d,c)=>{if(t.canvas&&(t=t.canvas),null==t.textureIndex)return;e._matrixDirty&&e._saveMatrix();let h=e._transformIndex,u=t.width,p=t.height;o??=t.defaultWidth,i??=t.defaultHeight,d??=u,c??=p;let f=t.pixelDensity||1;o*=f,i*=f;let[_,g,m,x]=e._calcBox(a,n,o,i,e._imageMode),v=s/u,y=l/p,w=(s+d)/u,b=(l+c)/p;r.push(_,m,v,y,h,g,m,w,y,h,_,x,v,b,h,g,x,w,b,h),e.drawStack.push(1,t.textureIndex)},e._hooks.preRender.push((()=>{if(!e._textureBindGroups.length)return;e.pass.setPipeline(e._pipelines[1]);const t=Q5.device.createBuffer({size:4*r.length,usage:GPUBufferUsage.VERTEX|GPUBufferUsage.COPY_DST,mappedAtCreation:!0});new Float32Array(t.getMappedRange()).set(r),t.unmap(),e.pass.setVertexBuffer(1,t)})),e._hooks.postRender.push((()=>{r.length=0}))},Q5.THRESHOLD=1,Q5.GRAY=2,Q5.OPAQUE=3,Q5.INVERT=4,Q5.POSTERIZE=5,Q5.DILATE=6,Q5.ERODE=7,Q5.BLUR=8,Q5.renderers.webgpu.text=(e,t)=>{let r=Q5.device.createShaderModule({label:"MSDF text shader",code:"\n// Positions for simple quad geometry\nconst pos = array(vec2f(0, -1), vec2f(1, -1), vec2f(0, 0), vec2f(1, 0));\n\nstruct VertexInput {\n\t@builtin(vertex_index) vertex : u32,\n\t@builtin(instance_index) instance : u32\n}\nstruct VertexOutput {\n\t@builtin(position) position : vec4f,\n\t@location(0) texCoord : vec2f,\n\t@location(1) fillColor : vec4f\n}\nstruct Char {\n\ttexOffset: vec2f,\n\ttexExtent: vec2f,\n\tsize: vec2f,\n\toffset: vec2f,\n}\nstruct Text {\n\tpos: vec2f,\n\tscale: f32,\n\ttransformIndex: f32,\n\tfillIndex: f32,\n\tstrokeIndex: f32\n}\nstruct Uniforms {\n\thalfWidth: f32,\n\thalfHeight: f32\n}\n\n@group(0) @binding(0) var<uniform> uniforms: Uniforms;\n@group(0) @binding(1) var<storage> transforms: array<mat4x4<f32>>;\n\n@group(1) @binding(0) var<storage> colors : array<vec4f>;\n\n@group(2) @binding(0) var fontTexture: texture_2d<f32>;\n@group(2) @binding(1) var fontSampler: sampler;\n@group(2) @binding(2) var<storage> fontChars: array<Char>;\n\n@group(3) @binding(0) var<storage> textChars: array<vec4f>;\n@group(3) @binding(1) var<storage> textMetadata: array<Text>;\n\n@vertex\nfn vertexMain(input : VertexInput) -> VertexOutput {\n\tlet char = textChars[input.instance];\n\n\tlet text = textMetadata[i32(char.w)];\n\n\tlet fontChar = fontChars[i32(char.z)];\n\n\tlet charPos = ((pos[input.vertex] * fontChar.size + char.xy + fontChar.offset) * text.scale) + text.pos;\n\n\tvar vert = vec4f(charPos, 0.0, 1.0);\n\tvert = transforms[i32(text.transformIndex)] * vert;\n\tvert.x /= uniforms.halfWidth;\n\tvert.y /= uniforms.halfHeight;\n\n\tvar output : VertexOutput;\n\toutput.position = vert;\n\toutput.texCoord = (pos[input.vertex] * vec2f(1, -1)) * fontChar.texExtent + fontChar.texOffset;\n\toutput.fillColor = colors[i32(text.fillIndex)];\n\treturn output;\n}\n\nfn sampleMsdf(texCoord: vec2f) -> f32 {\n\tlet c = textureSample(fontTexture, fontSampler, texCoord);\n\treturn max(min(c.r, c.g), min(max(c.r, c.g), c.b));\n}\n\n@fragment\nfn fragmentMain(input : VertexOutput) -> @location(0) vec4f {\n\t// pxRange (AKA distanceRange) comes from the msdfgen tool,\n\t// uses the default which is 4.\n\tlet pxRange = 4.0;\n\tlet sz = vec2f(textureDimensions(fontTexture, 0));\n\tlet dx = sz.x*length(vec2f(dpdxFine(input.texCoord.x), dpdyFine(input.texCoord.x)));\n\tlet dy = sz.y*length(vec2f(dpdxFine(input.texCoord.y), dpdyFine(input.texCoord.y)));\n\tlet toPixels = pxRange * inverseSqrt(dx * dx + dy * dy);\n\tlet sigDist = sampleMsdf(input.texCoord) - 0.5;\n\tlet pxDist = sigDist * toPixels;\n\tlet edgeWidth = 0.5;\n\tlet alpha = smoothstep(-edgeWidth, edgeWidth, pxDist);\n\tif (alpha < 0.001) {\n\t\tdiscard;\n\t}\n\treturn vec4f(input.fillColor.rgb, input.fillColor.a * alpha);\n}\n"}),a=Q5.device.createBindGroupLayout({label:"MSDF text group layout",entries:[{binding:0,visibility:GPUShaderStage.VERTEX|GPUShaderStage.FRAGMENT,buffer:{type:"read-only-storage"}},{binding:1,visibility:GPUShaderStage.VERTEX|GPUShaderStage.FRAGMENT,buffer:{type:"read-only-storage"}}]}),n=Q5.device.createSampler({minFilter:"linear",magFilter:"linear",mipmapFilter:"linear",maxAnisotropy:16}),o=Q5.device.createBindGroupLayout({label:"MSDF font group layout",entries:[{binding:0,visibility:GPUShaderStage.FRAGMENT,texture:{}},{binding:1,visibility:GPUShaderStage.FRAGMENT,sampler:{}},{binding:2,visibility:GPUShaderStage.VERTEX,buffer:{type:"read-only-storage"}}]}),i=Q5.device.createPipelineLayout({bindGroupLayouts:[...e.bindGroupLayouts,o,a]});e._pipelineConfigs[2]={label:"msdf font pipeline",layout:i,vertex:{module:r,entryPoint:"vertexMain"},fragment:{module:r,entryPoint:"fragmentMain",targets:[{format:"bgra8unorm",blend:e.blendConfigs.normal}]},primitive:{topology:"triangle-strip",stripIndexFormat:"uint32"},multisample:{count:4}},e._pipelines[2]=Q5.device.createRenderPipeline(e._pipelineConfigs[2]);class s{constructor(e,t,r,a){this.bindGroup=e,this.lineHeight=t,this.chars=r,this.kernings=a;let n=Object.values(r);this.charCount=n.length,this.defaultChar=n[0]}getChar(e){return this.chars[e]??this.defaultChar}getXAdvance(e,t=-1){let r=this.getChar(e);if(t>=0){let a=this.kernings.get(e);if(a)return r.xadvance+(a.get(t)??0)}return r.xadvance}}e._fonts=[];let l={},d=e.createGraphics(1,1);d.colorMode(e.RGB,1),e.loadFont=(r,a)=>{if("json"!=r.slice(r.lastIndexOf(".")+1))return d.loadFont(r,a);let i=r.slice(r.lastIndexOf("/")+1,r.lastIndexOf("-"));return(async(r,a,i)=>{t._preloadCount++;let d=await fetch(r);if(404==d.status)return t._preloadCount--,"";let c=await d.json(),h=r.lastIndexOf("/"),u=-1!=h?r.substring(0,h+1):"";d=await fetch(u+c.pages[0]);let p=await createImageBitmap(await d.blob()),f=[p.width,p.height,1],_=Q5.device.createTexture({label:`MSDF ${a}`,size:f,format:"rgba8unorm",usage:GPUTextureUsage.TEXTURE_BINDING|GPUTextureUsage.COPY_DST|GPUTextureUsage.RENDER_ATTACHMENT});Q5.device.queue.copyExternalImageToTexture({source:p},{texture:_},f),"string"==typeof c.chars&&(c.chars=e.CSV.parse(c.chars," "),c.kernings=e.CSV.parse(c.kernings," "));let g=c.chars.length,m=Q5.device.createBuffer({size:32*g,usage:GPUBufferUsage.STORAGE,mappedAtCreation:!0}),x=new Float32Array(m.getMappedRange()),v=1/c.common.scaleW,y=1/c.common.scaleH,w={},b=0;for(let[e,t]of c.chars.entries())w[t.id]=t,w[t.id].charIndex=e,x[b]=t.x*v,x[b+1]=t.y*y,x[b+2]=t.width*v,x[b+3]=t.height*y,x[b+4]=t.width,x[b+5]=t.height,x[b+6]=t.xoffset,x[b+7]=-t.yoffset,b+=8;m.unmap();let S=Q5.device.createBindGroup({label:"msdf font bind group",layout:o,entries:[{binding:0,resource:_.createView()},{binding:1,resource:n},{binding:2,resource:{buffer:m}}]}),M=new Map;if(c.kernings)for(let e of c.kernings){let t=M.get(e.first);t||(t=new Map,M.set(e.first,t)),t.set(e.second,e.amount)}e._font=new s(S,c.common.lineHeight,w,M),e._font.index=e._fonts.length,e._fonts.push(e._font),l[a]=e._font,t._preloadCount--,i&&i(a)})(r,i,a),i},e._textSize=18,e._textAlign="left",e._textBaseline="alphabetic";let c=!1,h=22.5,u=4.5,p=1.25;e.textFont=t=>{e._font=l[t]},e.textSize=t=>{e._textSize=t,c||(h=t*p,u=h-t)},e.textLeading=t=>{e._font.lineHeight=h=t,u=h-e._textSize,p=h/e._textSize,c=!0},e.textAlign=(t,r)=>{e._textAlign=t,r&&(e._textBaseline=r)},e._charStack=[],e._textStack=[];let f,_=(e,t,r)=>{let a=0,n=0,o=0,i=0,s=0,l=[],d=t.charCodeAt(0);for(let c=0;c<t.length;++c){let h=d;switch(d=c<t.length-1?t.charCodeAt(c+1):-1,h){case 10:l.push(n),i++,a=Math.max(a,n),n=0,o-=e.lineHeight*p;break;case 13:break;case 32:n+=e.getXAdvance(h);break;case 9:n+=2*e.getXAdvance(h);break;default:r&&r(n,o,i,e.getChar(h)),n+=e.getXAdvance(h,d),s++}}return l.push(n),a=Math.max(a,n),{width:a,height:l.length*e.lineHeight*p,lineWidths:l,printedCharCount:s}};e.text=(t,r,a,n,o)=>{if(!e._font)return void(navigator.onLine&&!f&&(f=!0,e.loadFont("https://q5js.org/fonts/YaHei-msdf.json")));if(t.length>n){let e=[],r=0;for(;r<t.length;){let a=r+n;if(a>=t.length){e.push(t.slice(r));break}let o=t.lastIndexOf(" ",a);(-1==o||o<r)&&(o=a),e.push(t.slice(r,o)),r=o+1}t=e.join("\n")}let i;for(let e=0;e<t.length;e++){switch(t[e]){case"\n":i=!0;case"\r":case"\t":case" ":0}}let s,l=[],d=e._textAlign,c=e._textBaseline,u=e._textStack.length,p=0;if("left"!=d||i){s=_(e._font,t);let r=0;"alphabetic"==c?a-=e._textSize:"center"==c?r=.5*s.height:"bottom"==c&&(r=s.height),_(e._font,t,((e,t,a,n)=>{let o=0;"center"==d?o=-.5*s.width- -.5*(s.width-s.lineWidths[a]):"right"==d&&(o=s.width-s.lineWidths[a]),l[p]=e+o,l[p+1]=t+r,l[p+2]=n.charIndex,l[p+3]=u,p+=4}))}else s=_(e._font,t,((e,t,r,a)=>{l[p]=e,l[p+1]=t,l[p+2]=a.charIndex,l[p+3]=u,p+=4})),"alphabetic"==c?a-=e._textSize:"center"==c?a-=.5*e._textSize:"bottom"==c&&(a-=h);e._charStack.push(l);let g=[];e._matrixDirty&&e._saveMatrix(),g[0]=r,g[1]=-a,g[2]=e._textSize/44,g[3]=e._transformIndex,g[4]=e._fillSet?e._fill:0,g[5]=e._stroke,e._textStack.push(g),e.drawStack.push(2,s.printedCharCount,e._font.index)},e.textWidth=t=>e._font?_(e._font,t).width:0,e.createTextImage=(t,r,a)=>{if(d.textSize(e._textSize),e._doFill){let t=4*e._fill;d.fill(colorStack.slice(t,t+4))}if(e._doStroke){let t=4*e._stroke;d.stroke(colorStack.slice(t,t+4))}let n=d.createTextImage(t,r,a);if(null==n.canvas.textureIndex)e._createTexture(n);else if(n.modified){let t=n.canvas,r=[t.width,t.height,1],a=e._textures[t.textureIndex];Q5.device.queue.copyExternalImageToTexture({source:t},{texture:a,colorSpace:e.canvas.colorSpace},r),n.modified=!1}return n},e.textImage=(t,r,a)=>{"string"==typeof t&&(t=e.createTextImage(t));let n=e._imageMode;e._imageMode="corner";let o=e._textAlign;"center"==o?r-=t.canvas.hw:"right"==o&&(r-=t.width);let i=e._textBaseline;"alphabetic"==i?a-=t._leading:"center"==i?a-=t._middle:"bottom"==i?a-=t._bottom:"top"==i&&(a-=t._top),e.image(t,r,a),e._imageMode=n},e._hooks.preRender.push((()=>{if(!e._charStack.length)return;let t=0;for(let r of e._charStack)t+=4*r.length;let r=Q5.device.createBuffer({size:t,usage:GPUBufferUsage.STORAGE|GPUBufferUsage.COPY_DST,mappedAtCreation:!0});new Float32Array(r.getMappedRange()).set(e._charStack.flat()),r.unmap();let n=6*e._textStack.length*4,o=Q5.device.createBuffer({label:"textBuffer",size:n,usage:GPUBufferUsage.STORAGE|GPUBufferUsage.COPY_DST,mappedAtCreation:!0});new Float32Array(o.getMappedRange()).set(e._textStack.flat()),o.unmap(),e._textBindGroup=Q5.device.createBindGroup({label:"msdf text bind group",layout:a,entries:[{binding:0,resource:{buffer:r}},{binding:1,resource:{buffer:o}}]})})),e._hooks.postRender.push((()=>{e._charStack.length=0,e._textStack.length=0}))};