@arcgis/core
Version:
ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API
41 lines (40 loc) • 2.42 kB
JavaScript
/*
All material copyright ESRI, All Rights Reserved, unless otherwise specified.
See https://js.arcgis.com/4.32/esri/copyright.txt for details.
*/
import{Projection as o}from"./Projection.glsl.js";import{TileCompositePassParameters as e}from"../terrain/TileComposite.glsl.js";import{BooleanPassUniform as r}from"../../shaderModules/BooleanPassUniform.js";import{Float2PassUniform as c}from"../../shaderModules/Float2PassUniform.js";import{glsl as t}from"../../shaderModules/glsl.js";import{Texture2DPassUniform as l}from"../../shaderModules/Texture2DPassUniform.js";class a extends e{constructor(o,e,r){super(),this.common=o,this.u_image=e,this.u_transformGrid=r}}function i(e,a){e.include(o),e.fragment.uniforms.add(new l("u_image",(o=>o.u_image)),new r("u_flipY",(o=>o.common.u_flipY)),new r("u_applyTransform",(o=>o.common.u_applyTransform)));const{requireBilinearWithNN:i}=a;i&&e.fragment.uniforms.add(new c("u_srcImageSize",(o=>o.common.u_srcImageSize))),e.fragment.code.add(t`vec2 getPixelLocation(vec2 coords) {
vec2 targetLocation = u_flipY ? vec2(coords.s, 1.0 - coords.t) : coords;
if (!u_applyTransform) {
return targetLocation;
}
return projectPixelLocation(targetLocation);
}
bool isOutside(vec2 coords){
if (coords.t>1.00001 ||coords.t<-0.00001 || coords.s>1.00001 ||coords.s<-0.00001) {
return true;
} else {
return false;
}
}`),i?e.fragment.code.add(t`vec4 sampleBilinear(sampler2D sampler, vec2 coords, vec2 texSize) {
vec2 texelStart = floor(coords * texSize);
vec2 coord0 = texelStart / texSize;
vec2 coord1 = (texelStart + vec2(1.0, 0.0)) / texSize;
vec2 coord2 = (texelStart + vec2(0.0, 1.0)) / texSize;
vec2 coord3 = (texelStart + vec2(1.0, 1.0)) / texSize;
vec4 color0 = texture(sampler, coord0);
vec4 color1 = texture(sampler, coord1);
vec4 color2 = texture(sampler, coord2);
vec4 color3 = texture(sampler, coord3);
vec2 blend = fract(coords * texSize);
vec4 color01 = mix(color0, color1, blend.x);
vec4 color23 = mix(color2, color3, blend.x);
vec4 color = mix(color01, color23, blend.y);
float alpha = floor(color0.a * color1.a * color2.a * color3.a + 0.5);
color = color * alpha + (1.0 - alpha) * texture(sampler, coords);
return color;
}
vec4 getPixel(vec2 pixelLocation) {
return sampleBilinear(u_image, pixelLocation, u_srcImageSize);
}`):e.fragment.code.add(t`vec4 getPixel(vec2 pixelLocation) {
return texture(u_image, pixelLocation);
}`)}export{i as Common,a as CommonPassParameters};