RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 01:07:35 +00:00
Code Issues Activity Actions

LibGfx+LibWeb: Add JPEG decoder and integrate with LibWeb

Browse source 
This patch adds support for JPEG decoding. The JPEG decoder is capable
of handling standard 2x1 horizontal, 2x1 vertical and quartered chroma
subsampling. The implemented Inverse DCT performs with a decent speed.

As of interchange formats, since we tend to ignore the metadata in APPn
markers, the decoder can handle any format compatible with JFIF, which
includes EXIFs and sometimes WebMs too. The decoder does not support
progressive JPEGs yet.
This commit is contained in:
Devashish 2020-05-18 13:28:27 +05:30 • committed by Andreas Kling
parent 10255bc5c6
commit 8b71b839fa
12 changed files with 1301 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

23
Base/res/html/misc/jpg.html Normal file
View file

@ -0,0 +1,23 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Pretty JPEG Pictures</title>
</head>
<body>
<div>
<h3>Non-subsampled Lena</h3> <br>
<img alt="lena" src="jpgsuite_files/non-subsampled-lena.jpg"/> <br>
<h3>Chroma Horizontally Halved Lena</h3> <br>
<img alt="lena" src="jpgsuite_files/horizontally-halved-lena.jpg"/> <br>
<h3>Chroma Vertically Halved Lena</h3> <br>
<img alt="lena" src="jpgsuite_files/vertically-halved-lena.jpg"/> <br>
<h3>Chroma Quartered Lena</h3> <br>
<img alt="lena" src="jpgsuite_files/chroma-quartered-lena.jpg"/><br>
</div>
<div>
<h3>Oh Lena!</h3> <br>
<img alt="lena" src="jpgsuite_files/oh-lena.jpg"/>
</div>
</body>
</html>

BIN
Base/res/html/misc/jpgsuite_files/chroma-quartered-lena.jpg Normal file
View file

Binary file not shown.
Side by side

After

Width:  |  Height:  |  Size: 24 KiB

BIN
Base/res/html/misc/jpgsuite_files/horizontally-halved-lena.jpg Normal file
View file

Binary file not shown.
Side by side

After

Width:  |  Height:  |  Size: 29 KiB

BIN
Base/res/html/misc/jpgsuite_files/non-subsampled-lena.jpg Normal file
View file

Binary file not shown.
Side by side

After

Width:  |  Height:  |  Size: 34 KiB

BIN
Base/res/html/misc/jpgsuite_files/oh-lena.jpg Normal file
View file

Binary file not shown.
Side by side

After

Width:  |  Height:  |  Size: 152 KiB

BIN
Base/res/html/misc/jpgsuite_files/vertically-halved-lena.jpg Normal file
View file

Binary file not shown.
Side by side

After

Width:  |  Height:  |  Size: 28 KiB

1
Base/res/html/misc/welcome.html
View file

@ -34,6 +34,7 @@ span#ua {
<li><a href="iframe.html">iframe</a></li>
<li><a href="many-buggies.html">many buggies</a></li>
<li><a href="bmpsuite.html">BMP test suite</a></li>
<li><a href="jpg.html">JPG Images</a></li>
<li><a href="palette.html">system palette color css extension</a></li>
<li><a href="inline-block-link.html">link inside display: inline-block</a></li>
<li><a href="set-interval.html">setInterval() test</a></li>