[pattern.pdf](https://github.com/mozilla/pdf.js/files/4022310/pattern.pdf)

Configuration:
- Firefox Nightly 73.0a1 (2020-01-04)
- macOS Mojave 10.14.6
- PDF.js version: 2.4.254
- Is a browser extension: built-in

Steps to reproduce the problem:
1. Open the PDF, zoom in to 200% for a more detailed view

What is the expected behavior?
<img width="736" alt="pattern-acrobat" src="https://user-images.githubusercontent.com/9106997/71770714-34dc2600-2f30-11ea-958d-4fea6f2b53c2.png">

What went wrong?
<img width="563" alt="pattern-pdfjs" src="https://user-images.githubusercontent.com/9106997/71770723-4a515000-2f30-11ea-8a92-cef4cac2a8f8.png">

The crosshatch pattern is rendered by pdf.js using the wrong pattern style. The other pattern style just seem to have a broken redering.

TeX source of PDF:
```tex
\documentclass[a4paper,11pt]{scrartcl}
\usepackage{tikz}
\usetikzlibrary{patterns}

\begin{document}
crosshatch pattern:
\begin{tikzpicture}
\draw[draw=black, fill=black!10, pattern=crosshatch, pattern color=black] (0,0) rectangle (1,1);
\end{tikzpicture}
\\

north east lines pattern:
\begin{tikzpicture}
\draw[draw=black, fill=black!10, pattern=north east lines, pattern color=black] (0,0) rectangle (1,1);
\end{tikzpicture}
\\

north west lines pattern:
\begin{tikzpicture}
\draw[draw=black, fill=black!10, pattern=north west lines, pattern color=black] (0,0) rectangle (1,1);
\end{tikzpicture}
\\

grid pattern:
\begin{tikzpicture}
\draw[draw=black, fill=black!10, pattern=grid, pattern color=black] (0,0) rectangle (1,1);
\end{tikzpicture}
\end{document}
```
throw new Error(`bad image kind: ${imgData.kind}`);
    }
  }
  function putBinaryImageMask(ctx, imgData) {
    const height = imgData.height,
      width = imgData.width;
    const partialChunkHeight = height % FULL_CHUNK_HEIGHT;
    const fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
    const totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
    const chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
    let srcPos = 0;
    const src = imgData.data;
    const dest = chunkImgData.data;
    for (let i = 0; i < totalChunks; i++) {
      const thisChunkHeight =
        i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
      
      
      let destPos = 3; 
      for (let j = 0; j < thisChunkHeight; j++) {
        let elem,
          mask = 0;
        for (let k = 0; k < width; k++) {
          if (!mask) {
            elem = src[srcPos++];
            mask = 128;
          }
          dest[destPos] = elem & mask ? 0 : 255;
          destPos += 4;
          mask >>= 1;