d18cf47419
This special-case was added in PR 1992, however it became unnecessary with the changes in PR 4824 since all of the ColorSpace parsing is now done on the worker-thread (with only RGB-data being sent to the main-thread).
802 lines
22 KiB
JavaScript
802 lines
22 KiB
JavaScript
/* Copyright 2017 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { Dict, Name, Ref } from "../../src/core/primitives.js";
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import { Stream, StringStream } from "../../src/core/stream.js";
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import { ColorSpace } from "../../src/core/colorspace.js";
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import { LocalColorSpaceCache } from "../../src/core/image_utils.js";
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import { PDFFunctionFactory } from "../../src/core/function.js";
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import { XRefMock } from "./test_utils.js";
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describe("colorspace", function () {
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describe("ColorSpace.isDefaultDecode", function () {
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it("should be true if decode is not an array", function () {
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expect(ColorSpace.isDefaultDecode("string", 0)).toBeTruthy();
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});
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it("should be true if length of decode array is not correct", function () {
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expect(ColorSpace.isDefaultDecode([0], 1)).toBeTruthy();
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expect(ColorSpace.isDefaultDecode([0, 1, 0], 1)).toBeTruthy();
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});
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it("should be true if decode map matches the default decode map", function () {
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expect(ColorSpace.isDefaultDecode([], 0)).toBeTruthy();
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expect(ColorSpace.isDefaultDecode([0, 0], 1)).toBeFalsy();
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expect(ColorSpace.isDefaultDecode([0, 1], 1)).toBeTruthy();
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expect(ColorSpace.isDefaultDecode([0, 1, 0, 1, 0, 1], 3)).toBeTruthy();
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expect(ColorSpace.isDefaultDecode([0, 1, 0, 1, 1, 1], 3)).toBeFalsy();
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expect(
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ColorSpace.isDefaultDecode([0, 1, 0, 1, 0, 1, 0, 1], 4)
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).toBeTruthy();
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expect(
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ColorSpace.isDefaultDecode([1, 0, 0, 1, 0, 1, 0, 1], 4)
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).toBeFalsy();
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});
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});
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describe("ColorSpace caching", function () {
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let localColorSpaceCache = null;
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beforeAll(function (done) {
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localColorSpaceCache = new LocalColorSpaceCache();
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done();
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});
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afterAll(function (done) {
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localColorSpaceCache = null;
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done();
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});
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it("caching by Name", function () {
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const xref = new XRefMock();
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const pdfFunctionFactory = new PDFFunctionFactory({
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xref,
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});
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const colorSpace1 = ColorSpace.parse({
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cs: Name.get("Pattern"),
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xref,
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resources: null,
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pdfFunctionFactory,
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localColorSpaceCache,
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});
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expect(colorSpace1.name).toEqual("Pattern");
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const colorSpace2 = ColorSpace.parse({
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cs: Name.get("Pattern"),
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xref,
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resources: null,
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pdfFunctionFactory,
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localColorSpaceCache,
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});
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expect(colorSpace2.name).toEqual("Pattern");
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const colorSpaceNonCached = ColorSpace.parse({
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cs: Name.get("Pattern"),
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xref,
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resources: null,
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pdfFunctionFactory,
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localColorSpaceCache: new LocalColorSpaceCache(),
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});
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expect(colorSpaceNonCached.name).toEqual("Pattern");
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const colorSpaceOther = ColorSpace.parse({
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cs: Name.get("RGB"),
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xref,
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resources: null,
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pdfFunctionFactory,
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localColorSpaceCache,
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});
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expect(colorSpaceOther.name).toEqual("DeviceRGB");
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// These two must be *identical* if caching worked as intended.
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expect(colorSpace1).toBe(colorSpace2);
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expect(colorSpace1).not.toBe(colorSpaceNonCached);
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expect(colorSpace1).not.toBe(colorSpaceOther);
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});
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it("caching by Ref", function () {
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const paramsCalGray = new Dict();
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paramsCalGray.set("WhitePoint", [1, 1, 1]);
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paramsCalGray.set("BlackPoint", [0, 0, 0]);
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paramsCalGray.set("Gamma", 2.0);
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const paramsCalRGB = new Dict();
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paramsCalRGB.set("WhitePoint", [1, 1, 1]);
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paramsCalRGB.set("BlackPoint", [0, 0, 0]);
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paramsCalRGB.set("Gamma", [1, 1, 1]);
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paramsCalRGB.set("Matrix", [1, 0, 0, 0, 1, 0, 0, 0, 1]);
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const xref = new XRefMock([
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{
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ref: Ref.get(50, 0),
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data: [Name.get("CalGray"), paramsCalGray],
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},
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{
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ref: Ref.get(100, 0),
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data: [Name.get("CalRGB"), paramsCalRGB],
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},
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]);
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const pdfFunctionFactory = new PDFFunctionFactory({
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xref,
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});
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const colorSpace1 = ColorSpace.parse({
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cs: Ref.get(50, 0),
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xref,
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resources: null,
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pdfFunctionFactory,
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localColorSpaceCache,
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});
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expect(colorSpace1.name).toEqual("CalGray");
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const colorSpace2 = ColorSpace.parse({
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cs: Ref.get(50, 0),
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xref,
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resources: null,
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pdfFunctionFactory,
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localColorSpaceCache,
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});
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expect(colorSpace2.name).toEqual("CalGray");
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const colorSpaceNonCached = ColorSpace.parse({
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cs: Ref.get(50, 0),
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xref,
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resources: null,
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pdfFunctionFactory,
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localColorSpaceCache: new LocalColorSpaceCache(),
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});
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expect(colorSpaceNonCached.name).toEqual("CalGray");
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const colorSpaceOther = ColorSpace.parse({
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cs: Ref.get(100, 0),
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xref,
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resources: null,
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pdfFunctionFactory,
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localColorSpaceCache,
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});
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expect(colorSpaceOther.name).toEqual("CalRGB");
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// These two must be *identical* if caching worked as intended.
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expect(colorSpace1).toBe(colorSpace2);
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expect(colorSpace1).not.toBe(colorSpaceNonCached);
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expect(colorSpace1).not.toBe(colorSpaceOther);
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});
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});
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describe("DeviceGrayCS", function () {
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it("should handle the case when cs is a Name object", function () {
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const cs = Name.get("DeviceGray");
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const xref = new XRefMock([
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{
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ref: Ref.get(10, 0),
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data: new Dict(),
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},
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]);
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const resources = new Dict();
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const pdfFunctionFactory = new PDFFunctionFactory({
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xref,
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});
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const colorSpace = ColorSpace.parse({
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cs,
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xref,
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resources,
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pdfFunctionFactory,
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localColorSpaceCache: new LocalColorSpaceCache(),
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});
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const testSrc = new Uint8Array([27, 125, 250, 131]);
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const testDest = new Uint8ClampedArray(4 * 4 * 3);
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// prettier-ignore
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const expectedDest = new Uint8ClampedArray([
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27, 27, 27,
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27, 27, 27,
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125, 125, 125,
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125, 125, 125,
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27, 27, 27,
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27, 27, 27,
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125, 125, 125,
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125, 125, 125,
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250, 250, 250,
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250, 250, 250,
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131, 131, 131,
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131, 131, 131,
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250, 250, 250,
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250, 250, 250,
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131, 131, 131,
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131, 131, 131
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]);
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colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.1]), 0)).toEqual(
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new Uint8ClampedArray([26, 26, 26])
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);
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expect(colorSpace.getOutputLength(2, 0)).toEqual(6);
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expect(colorSpace.isPassthrough(8)).toBeFalsy();
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expect(testDest).toEqual(expectedDest);
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});
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it("should handle the case when cs is an indirect object", function () {
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const cs = Ref.get(10, 0);
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const xref = new XRefMock([
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{
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ref: cs,
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data: Name.get("DeviceGray"),
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},
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]);
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const resources = new Dict();
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const pdfFunctionFactory = new PDFFunctionFactory({
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xref,
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});
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const colorSpace = ColorSpace.parse({
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cs,
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xref,
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resources,
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pdfFunctionFactory,
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localColorSpaceCache: new LocalColorSpaceCache(),
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});
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const testSrc = new Uint8Array([27, 125, 250, 131]);
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const testDest = new Uint8ClampedArray(3 * 3 * 3);
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// prettier-ignore
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const expectedDest = new Uint8ClampedArray([
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27, 27, 27,
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27, 27, 27,
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125, 125, 125,
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27, 27, 27,
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27, 27, 27,
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125, 125, 125,
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250, 250, 250,
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250, 250, 250,
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131, 131, 131
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]);
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colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.2]), 0)).toEqual(
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new Uint8ClampedArray([51, 51, 51])
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);
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expect(colorSpace.getOutputLength(3, 1)).toEqual(12);
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expect(colorSpace.isPassthrough(8)).toBeFalsy();
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expect(testDest).toEqual(expectedDest);
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});
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});
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describe("DeviceRgbCS", function () {
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it("should handle the case when cs is a Name object", function () {
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const cs = Name.get("DeviceRGB");
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const xref = new XRefMock([
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{
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ref: Ref.get(10, 0),
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data: new Dict(),
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},
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]);
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const resources = new Dict();
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const pdfFunctionFactory = new PDFFunctionFactory({
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xref,
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});
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const colorSpace = ColorSpace.parse({
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cs,
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xref,
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resources,
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pdfFunctionFactory,
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localColorSpaceCache: new LocalColorSpaceCache(),
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});
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// prettier-ignore
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const testSrc = new Uint8Array([
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27, 125, 250,
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131, 139, 140,
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111, 25, 198,
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21, 147, 255
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]);
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const testDest = new Uint8ClampedArray(4 * 4 * 3);
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// prettier-ignore
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const expectedDest = new Uint8ClampedArray([
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27, 125, 250,
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27, 125, 250,
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131, 139, 140,
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131, 139, 140,
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27, 125, 250,
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27, 125, 250,
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131, 139, 140,
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131, 139, 140,
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111, 25, 198,
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111, 25, 198,
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21, 147, 255,
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21, 147, 255,
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111, 25, 198,
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111, 25, 198,
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21, 147, 255,
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21, 147, 255
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]);
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colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3]), 0)).toEqual(
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new Uint8ClampedArray([26, 51, 77])
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);
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expect(colorSpace.getOutputLength(4, 0)).toEqual(4);
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expect(colorSpace.isPassthrough(8)).toBeTruthy();
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expect(testDest).toEqual(expectedDest);
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});
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it("should handle the case when cs is an indirect object", function () {
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const cs = Ref.get(10, 0);
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const xref = new XRefMock([
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{
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ref: cs,
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data: Name.get("DeviceRGB"),
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},
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]);
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const resources = new Dict();
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const pdfFunctionFactory = new PDFFunctionFactory({
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xref,
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});
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const colorSpace = ColorSpace.parse({
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cs,
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xref,
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resources,
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pdfFunctionFactory,
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localColorSpaceCache: new LocalColorSpaceCache(),
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});
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// prettier-ignore
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const testSrc = new Uint8Array([
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27, 125, 250,
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131, 139, 140,
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111, 25, 198,
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21, 147, 255
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]);
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const testDest = new Uint8ClampedArray(3 * 3 * 3);
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// prettier-ignore
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const expectedDest = new Uint8ClampedArray([
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27, 125, 250,
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27, 125, 250,
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131, 139, 140,
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27, 125, 250,
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27, 125, 250,
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131, 139, 140,
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111, 25, 198,
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111, 25, 198,
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21, 147, 255
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]);
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colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
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expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3]), 0)).toEqual(
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new Uint8ClampedArray([26, 51, 77])
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);
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expect(colorSpace.getOutputLength(4, 1)).toEqual(5);
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expect(colorSpace.isPassthrough(8)).toBeTruthy();
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expect(testDest).toEqual(expectedDest);
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});
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});
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describe("DeviceCmykCS", function () {
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it("should handle the case when cs is a Name object", function () {
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const cs = Name.get("DeviceCMYK");
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const xref = new XRefMock([
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{
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ref: Ref.get(10, 0),
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data: new Dict(),
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},
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]);
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const resources = new Dict();
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const pdfFunctionFactory = new PDFFunctionFactory({
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xref,
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});
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const colorSpace = ColorSpace.parse({
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cs,
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xref,
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resources,
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pdfFunctionFactory,
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localColorSpaceCache: new LocalColorSpaceCache(),
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});
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// prettier-ignore
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const testSrc = new Uint8Array([
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27, 125, 250, 128,
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131, 139, 140, 45,
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111, 25, 198, 78,
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21, 147, 255, 69
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]);
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const testDest = new Uint8ClampedArray(4 * 4 * 3);
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// prettier-ignore
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const expectedDest = new Uint8ClampedArray([
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135, 81, 18,
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135, 81, 18,
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114, 102, 97,
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114, 102, 97,
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135, 81, 18,
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135, 81, 18,
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114, 102, 97,
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114, 102, 97,
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112, 144, 75,
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112, 144, 75,
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188, 98, 27,
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188, 98, 27,
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112, 144, 75,
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112, 144, 75,
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188, 98, 27,
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188, 98, 27
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]);
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colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);
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expect(
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colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3, 1]), 0)
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).toEqual(new Uint8ClampedArray([32, 28, 21]));
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expect(colorSpace.getOutputLength(4, 0)).toEqual(3);
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expect(colorSpace.isPassthrough(8)).toBeFalsy();
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expect(testDest).toEqual(expectedDest);
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});
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it("should handle the case when cs is an indirect object", function () {
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const cs = Ref.get(10, 0);
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const xref = new XRefMock([
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{
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ref: cs,
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data: Name.get("DeviceCMYK"),
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},
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]);
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const resources = new Dict();
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const pdfFunctionFactory = new PDFFunctionFactory({
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xref,
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});
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const colorSpace = ColorSpace.parse({
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cs,
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xref,
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resources,
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pdfFunctionFactory,
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localColorSpaceCache: new LocalColorSpaceCache(),
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});
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// prettier-ignore
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const testSrc = new Uint8Array([
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27, 125, 250, 128,
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131, 139, 140, 45,
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111, 25, 198, 78,
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21, 147, 255, 69
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]);
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const testDest = new Uint8ClampedArray(3 * 3 * 3);
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// prettier-ignore
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const expectedDest = new Uint8ClampedArray([
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135, 81, 18,
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135, 81, 18,
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114, 102, 97,
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135, 81, 18,
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135, 81, 18,
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114, 102, 97,
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112, 144, 75,
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112, 144, 75,
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188, 98, 27
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]);
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colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
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expect(
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colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3, 1]), 0)
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).toEqual(new Uint8ClampedArray([32, 28, 21]));
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expect(colorSpace.getOutputLength(4, 1)).toEqual(4);
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expect(colorSpace.isPassthrough(8)).toBeFalsy();
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expect(testDest).toEqual(expectedDest);
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});
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});
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describe("CalGrayCS", function () {
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it("should handle the case when cs is an array", function () {
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const params = new Dict();
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params.set("WhitePoint", [1, 1, 1]);
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params.set("BlackPoint", [0, 0, 0]);
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params.set("Gamma", 2.0);
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const cs = [Name.get("CalGray"), params];
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const xref = new XRefMock([
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{
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ref: Ref.get(10, 0),
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data: new Dict(),
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},
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]);
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const resources = new Dict();
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const pdfFunctionFactory = new PDFFunctionFactory({
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xref,
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});
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const colorSpace = ColorSpace.parse({
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cs,
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xref,
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resources,
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pdfFunctionFactory,
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localColorSpaceCache: new LocalColorSpaceCache(),
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});
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const testSrc = new Uint8Array([27, 125, 250, 131]);
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const testDest = new Uint8ClampedArray(4 * 4 * 3);
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// prettier-ignore
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const expectedDest = new Uint8ClampedArray([
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25, 25, 25,
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25, 25, 25,
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143, 143, 143,
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143, 143, 143,
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25, 25, 25,
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|
25, 25, 25,
|
|
143, 143, 143,
|
|
143, 143, 143,
|
|
251, 251, 251,
|
|
251, 251, 251,
|
|
149, 149, 149,
|
|
149, 149, 149,
|
|
251, 251, 251,
|
|
251, 251, 251,
|
|
149, 149, 149,
|
|
149, 149, 149
|
|
]);
|
|
colorSpace.fillRgb(testDest, 2, 2, 4, 4, 4, 8, testSrc, 0);
|
|
|
|
expect(colorSpace.getRgb(new Float32Array([1.0]), 0)).toEqual(
|
|
new Uint8ClampedArray([255, 255, 255])
|
|
);
|
|
expect(colorSpace.getOutputLength(4, 0)).toEqual(12);
|
|
expect(colorSpace.isPassthrough(8)).toBeFalsy();
|
|
expect(testDest).toEqual(expectedDest);
|
|
});
|
|
});
|
|
|
|
describe("CalRGBCS", function () {
|
|
it("should handle the case when cs is an array", function () {
|
|
const params = new Dict();
|
|
params.set("WhitePoint", [1, 1, 1]);
|
|
params.set("BlackPoint", [0, 0, 0]);
|
|
params.set("Gamma", [1, 1, 1]);
|
|
params.set("Matrix", [1, 0, 0, 0, 1, 0, 0, 0, 1]);
|
|
|
|
const cs = [Name.get("CalRGB"), params];
|
|
const xref = new XRefMock([
|
|
{
|
|
ref: Ref.get(10, 0),
|
|
data: new Dict(),
|
|
},
|
|
]);
|
|
const resources = new Dict();
|
|
|
|
const pdfFunctionFactory = new PDFFunctionFactory({
|
|
xref,
|
|
});
|
|
const colorSpace = ColorSpace.parse({
|
|
cs,
|
|
xref,
|
|
resources,
|
|
pdfFunctionFactory,
|
|
localColorSpaceCache: new LocalColorSpaceCache(),
|
|
});
|
|
|
|
// prettier-ignore
|
|
const testSrc = new Uint8Array([
|
|
27, 125, 250,
|
|
131, 139, 140,
|
|
111, 25, 198,
|
|
21, 147, 255
|
|
]);
|
|
const testDest = new Uint8ClampedArray(3 * 3 * 3);
|
|
// prettier-ignore
|
|
const expectedDest = new Uint8ClampedArray([
|
|
0, 238, 255,
|
|
0, 238, 255,
|
|
185, 196, 195,
|
|
0, 238, 255,
|
|
0, 238, 255,
|
|
185, 196, 195,
|
|
235, 0, 243,
|
|
235, 0, 243,
|
|
0, 255, 255
|
|
]);
|
|
colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
|
|
|
|
expect(colorSpace.getRgb(new Float32Array([0.1, 0.2, 0.3]), 0)).toEqual(
|
|
new Uint8ClampedArray([0, 147, 151])
|
|
);
|
|
expect(colorSpace.getOutputLength(4, 0)).toEqual(4);
|
|
expect(colorSpace.isPassthrough(8)).toBeFalsy();
|
|
expect(testDest).toEqual(expectedDest);
|
|
});
|
|
});
|
|
|
|
describe("LabCS", function () {
|
|
it("should handle the case when cs is an array", function () {
|
|
const params = new Dict();
|
|
params.set("WhitePoint", [1, 1, 1]);
|
|
params.set("BlackPoint", [0, 0, 0]);
|
|
params.set("Range", [-100, 100, -100, 100]);
|
|
|
|
const cs = [Name.get("Lab"), params];
|
|
const xref = new XRefMock([
|
|
{
|
|
ref: Ref.get(10, 0),
|
|
data: new Dict(),
|
|
},
|
|
]);
|
|
const resources = new Dict();
|
|
|
|
const pdfFunctionFactory = new PDFFunctionFactory({
|
|
xref,
|
|
});
|
|
const colorSpace = ColorSpace.parse({
|
|
cs,
|
|
xref,
|
|
resources,
|
|
pdfFunctionFactory,
|
|
localColorSpaceCache: new LocalColorSpaceCache(),
|
|
});
|
|
|
|
// prettier-ignore
|
|
const testSrc = new Uint8Array([
|
|
27, 25, 50,
|
|
31, 19, 40,
|
|
11, 25, 98,
|
|
21, 47, 55
|
|
]);
|
|
const testDest = new Uint8ClampedArray(3 * 3 * 3);
|
|
// prettier-ignore
|
|
const expectedDest = new Uint8ClampedArray([
|
|
0, 49, 101,
|
|
0, 49, 101,
|
|
0, 53, 117,
|
|
0, 49, 101,
|
|
0, 49, 101,
|
|
0, 53, 117,
|
|
0, 41, 40,
|
|
0, 41, 40,
|
|
0, 43, 90
|
|
]);
|
|
colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
|
|
|
|
expect(colorSpace.getRgb([55, 25, 35], 0)).toEqual(
|
|
new Uint8ClampedArray([188, 100, 61])
|
|
);
|
|
expect(colorSpace.getOutputLength(4, 0)).toEqual(4);
|
|
expect(colorSpace.isPassthrough(8)).toBeFalsy();
|
|
expect(colorSpace.isDefaultDecode([0, 1])).toBeTruthy();
|
|
expect(testDest).toEqual(expectedDest);
|
|
});
|
|
});
|
|
|
|
describe("IndexedCS", function () {
|
|
it("should handle the case when cs is an array", function () {
|
|
// prettier-ignore
|
|
const lookup = new Stream(
|
|
new Uint8Array([
|
|
23, 155, 35,
|
|
147, 69, 93,
|
|
255, 109, 70
|
|
])
|
|
);
|
|
const cs = [Name.get("Indexed"), Name.get("DeviceRGB"), 2, lookup];
|
|
const xref = new XRefMock([
|
|
{
|
|
ref: Ref.get(10, 0),
|
|
data: new Dict(),
|
|
},
|
|
]);
|
|
const resources = new Dict();
|
|
|
|
const pdfFunctionFactory = new PDFFunctionFactory({
|
|
xref,
|
|
});
|
|
const colorSpace = ColorSpace.parse({
|
|
cs,
|
|
xref,
|
|
resources,
|
|
pdfFunctionFactory,
|
|
localColorSpaceCache: new LocalColorSpaceCache(),
|
|
});
|
|
|
|
const testSrc = new Uint8Array([2, 2, 0, 1]);
|
|
const testDest = new Uint8ClampedArray(3 * 3 * 3);
|
|
// prettier-ignore
|
|
const expectedDest = new Uint8ClampedArray([
|
|
255, 109, 70,
|
|
255, 109, 70,
|
|
255, 109, 70,
|
|
255, 109, 70,
|
|
255, 109, 70,
|
|
255, 109, 70,
|
|
23, 155, 35,
|
|
23, 155, 35,
|
|
147, 69, 93,
|
|
]);
|
|
colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
|
|
|
|
expect(colorSpace.getRgb([2], 0)).toEqual(
|
|
new Uint8ClampedArray([255, 109, 70])
|
|
);
|
|
expect(colorSpace.isPassthrough(8)).toBeFalsy();
|
|
expect(colorSpace.isDefaultDecode([0, 1], 1)).toBeTruthy();
|
|
expect(testDest).toEqual(expectedDest);
|
|
});
|
|
});
|
|
|
|
describe("AlternateCS", function () {
|
|
it("should handle the case when cs is an array", function () {
|
|
const fnDict = new Dict();
|
|
fnDict.set("FunctionType", 4);
|
|
fnDict.set("Domain", [0.0, 1.0]);
|
|
fnDict.set("Range", [0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0]);
|
|
fnDict.set("Length", 58);
|
|
|
|
let fn = new StringStream(
|
|
"{ dup 0.84 mul " +
|
|
"exch 0.00 exch " +
|
|
"dup 0.44 mul " +
|
|
"exch 0.21 mul }"
|
|
);
|
|
fn = new Stream(fn.bytes, 0, 58, fnDict);
|
|
|
|
const fnRef = Ref.get(10, 0);
|
|
|
|
const cs = [
|
|
Name.get("Separation"),
|
|
Name.get("LogoGreen"),
|
|
Name.get("DeviceCMYK"),
|
|
fnRef,
|
|
];
|
|
const xref = new XRefMock([
|
|
{
|
|
ref: fnRef,
|
|
data: fn,
|
|
},
|
|
]);
|
|
const resources = new Dict();
|
|
|
|
const pdfFunctionFactory = new PDFFunctionFactory({
|
|
xref,
|
|
});
|
|
const colorSpace = ColorSpace.parse({
|
|
cs,
|
|
xref,
|
|
resources,
|
|
pdfFunctionFactory,
|
|
localColorSpaceCache: new LocalColorSpaceCache(),
|
|
});
|
|
|
|
const testSrc = new Uint8Array([27, 25, 50, 31]);
|
|
const testDest = new Uint8ClampedArray(3 * 3 * 3);
|
|
// prettier-ignore
|
|
const expectedDest = new Uint8ClampedArray([
|
|
226, 242, 241,
|
|
226, 242, 241,
|
|
229, 244, 242,
|
|
226, 242, 241,
|
|
226, 242, 241,
|
|
229, 244, 242,
|
|
203, 232, 229,
|
|
203, 232, 229,
|
|
222, 241, 238
|
|
]);
|
|
colorSpace.fillRgb(testDest, 2, 2, 3, 3, 3, 8, testSrc, 0);
|
|
|
|
expect(colorSpace.getRgb([0.1], 0)).toEqual(
|
|
new Uint8ClampedArray([228, 243, 242])
|
|
);
|
|
expect(colorSpace.isPassthrough(8)).toBeFalsy();
|
|
expect(colorSpace.isDefaultDecode([0, 1])).toBeTruthy();
|
|
expect(testDest).toEqual(expectedDest);
|
|
});
|
|
});
|
|
});
|