@arcgis/core/views/3d/terrain/TileCompositor.js

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.8/LICENSE.txt */
import e from"../../../core/Logger.js";import{disposeMaybe as t}from"../../../core/maybe.js";import{ZEROS as r}from"../../../core/libs/gl-matrix-2/factories/vec2f64.js";import{VectorTileRendererHelper3D as i}from"../../2d/engine/vectorTiles/VectorTileRendererHelper3D.js";import{BlendLayersTechnique as s}from"./BlendLayersTechnique.js";import{BlendLayersTechniqueConfiguration as o}from"./BlendLayersTechniqueConfiguration.js";import{RasterColorizerTechnique as n}from"./RasterColorizerTechnique.js";import{RasterColorizerTechniqueConfiguration as a}from"./RasterColorizerTechniqueConfiguration.js";import{MultiSizeFramebuffer as h}from"./support/MultiSizeFramebuffer.js";import{BindParameters as c}from"../webgl-engine/lib/BindParameters.js";import{createQuadVAO as l}from"../webgl-engine/lib/glUtil3D.js";import{PrimitiveType as u}from"../../webgl/enums.js";import d from"../../webgl/Texture.js";const _=()=>e.getLogger("esri.views.3d.terrain");class f{constructor(e,t){this._rctx=e,this._techniques=t,this._fbos=[],this._vectorTileHelper=new i,this._blendConfiguration=new o,this._current=0,this._lastUsedIds=new Array,this._lastCreatedBufferId=0,this._onHoldIds=new Array,this._vao=l(this._rctx,1),this._bindParameters=new c(e.emptyTexture,null)}dispose(){this._fbos.forEach(t),this._fbos=null,this._vtFBO=t(this._vtFBO),this._vao=t(this._vao),this._vectorTileHelper=t(this._vectorTileHelper)}updateHeading(e){this._vectorTileHelper?.updateHeading(e)}_acquireBlendTechnique(e,t,r,i=!1,o=0){return this._blendConfiguration.output=t,this._blendConfiguration.blendMode=e,this._blendConfiguration.applyBaseOpacity=r,this._blendConfiguration.premultipliedAlphaSource=i,this._blendConfiguration.background=o,this._techniques.precompile(s,this._blendConfiguration),this._techniques.get(s,this._blendConfiguration)}drawBackground(e,t){const r=this._acquireBlendTechnique(0,t?2:3,!1,!1,1),i=this._rctx.bindTechnique(r,this._bindParameters,e);this._render(i)}_render(e){this._rctx.bindVAO(this._vao),e.assertCompatibleVertexAttributeLocations(this._vao),this._rctx.drawArrays(u.TRIANGLE_STRIP,0,this._vao.vertexCount("geometry"))}drawGroup(e,t,r,i,s=!0){1===t&&(e.fboTexture=this._fbos[this.getLastOnHoldId()].get(r).colorTexture,null==e.fboTexture&&(e.fboTexture=this._rctx.emptyTexture)),e.texture=this.currentFBO(r).colorTexture,this.closeGroup(r);const o=e.baseOpacity<1,n=this._acquireBlendTechnique(i,t,o,s),a=this._rctx.bindTechnique(n,this._bindParameters,e);this._render(a)}drawImageData(e,t,r,i,s=!1){if(null==e.texture)return;const o=e.baseOpacity<1;e.fboTexture=4===t||0===i&&!o&&!s?null:this.switch(r).colorTexture,e.fboTexture??=this._rctx.emptyTexture;const n=this._acquireBlendTechnique(i,t,o,s),a=this._rctx.bindTechnique(n,this._bindParameters,e);this._render(a)}drawRasterData(e,t,r,i,s){const o=s.sourceLayerInfo.data;if(!o.source)return;if(s.tile.surface.layerViewByIndex(s.layerIndex,1).ensureSymbolizerParameters(o),!o.bind(this._rctx))return;const n=e.baseOpacity<1;e.fboTexture=0!==i||n?this.switch(r).colorTexture:null;const a=this._acquireRasterTechnique(o,t,i,n);if(!a)return;o.opacity=e.opacity;const h=o.getUniforms(this._rctx);h.scale=s.scale,h.offset=s.offset,h.backgroundColor=e.backgroundColor,h.fboTexture=e.fboTexture,h.baseOpacity=e.baseOpacity;const c=this._rctx.bindTechnique(a,this._bindParameters,h);this._render(c)}_acquireRasterTechnique(e,t,r,i){if(!this._rctx.capabilities.colorBufferFloat)return null;const s=e.symbolizerParameters,o=["stretch","lut","hillshade"].indexOf(s.type);return this._rasterConfiguration??=new a,this._rasterConfiguration.output=t,this._rasterConfiguration.blendMode=r,this._rasterConfiguration.applyBaseOpacity=i,this._rasterConfiguration.colorizerType=o,this._rasterConfiguration.applyColormap=!!s.colormap,this._rasterConfiguration.requireBilinearWithNN=e.isBilinearWithStretchColorRamp,this._rasterConfiguration.stretchType=e.hasStretchTypeNone()?0:1,this._techniques.precompile(n,this._rasterConfiguration),this._techniques.get(n,this._rasterConfiguration)}drawVectorData(e,t,i,s,o,n,a,c){const l=this._rctx,u=o.sourceLayerInfo.data,d=o.tile.surface.layerViewByIndex(o.layerIndex,1),f=e.baseOpacity<1,p=f||e.opacity<1||0!==s||1!==t,b=p,g=this._acquireBlendTechnique(s,t,f,b);l.setPipelineState(g.getPipeline(this._bindParameters));let m=null,x=null;p?(x=this.currentFBO(i),null==this._vtFBO&&(this._vtFBO=new h(this._rctx)),m=this._vtFBO.get(i),l.bindFramebuffer(m),this._clearCurrentFBO()):c&&l.clear(256);try{this._vectorTileHelper.renderBackground(l,o.sourceLod,d.painter,d.layer.styleRepository,d.schemaHelper,Math.round(1/o.scale),o.offset,a,n,d.contentZoom),u&&this._vectorTileHelper.renderContent(l,o.sourceLod,u,o.vtlNeighborInfos,d.painter,d.layer.styleRepository,d.schemaHelper,Math.round(1/o.scale),o.offset,a,n,d.contentZoom)}catch(T){_().warnOnce("A render call containing vector tiles did not resolve correctly.",T)}return!m||(l.bindFramebuffer(x),e.texture=m.colorTexture,e.offset=r,e.scale=1,this.drawImageData(e,t,i,s,b),c)}copyFBOToTexture(e){const t=this._rctx,r=t.bindTexture(e.texture,d.TEXTURE_UNIT_FOR_UPDATES),i=e.descriptor;t.gl.copyTexImage2D(3553,0,i.pixelFormat,0,0,i.width,i.height,0),e.generateMipmap(),t.bindTexture(r,d.TEXTURE_UNIT_FOR_UPDATES)}_clearCurrentFBO(){this._rctx.setStencilWriteMask(255),this._rctx.setClearColor(0,0,0,0),this._rctx.setClearDepth(1),this._rctx.setClearStencil(0),this._rctx.clear(17664)}_initFBO(e,t,r){this._rctx.bindFramebuffer(e),r&&(this._rctx.setViewport(0,0,t,t),this._clearCurrentFBO())}ensureBuffer(e){this._lastUsedIds.length=0,this._lastUsedIds.push(1),this._lastCreatedBufferId=1,this._onHoldIds.length=0,this.bind(e)}bind(e,t=0,r=!0){if(this._current=t,t>=this._fbos.length)for(let i=this._fbos.length;i<=t;i++)this._fbos.push(new h(this._rctx));this._initFBO(this._fbos[t].get(e),e,r)}_bindNextFreeBuffer(e){this._lastUsedIds.length>0?this.bind(e,this._lastUsedIds.pop()):(this._lastCreatedBufferId++,this.bind(e,this._lastCreatedBufferId))}openGroup(e){this._onHoldIds.push(this._current),this._bindNextFreeBuffer(e)}switch(e){const t=this.currentFBO(e),r=this._current;return this._bindNextFreeBuffer(e),this._lastUsedIds.push(r),t}getLastOnHoldId(){return this._onHoldIds[this._onHoldIds.length-1]}closeGroup(e){const t=this._current;this._bindNextFreeBuffer(e),this._lastUsedIds.push(t),this._lastUsedIds.push(this._onHoldIds.pop())}unbind(){this._rctx.bindFramebuffer(null)}currentFBO(e){return this._fbos[this._current].get(e)}}export{f as TileCompositor};