Comparison of layout engines (graphics)

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The following tables compare graphics compatibility and support for a number of layout engines. Please see the individual products' articles for further information. This article is not all-inclusive or necessarily up-to-date. Unless otherwise specified in footnotes, comparisons are based on the stable versions without any add-ons, extensions or external programs.

Version numbers, if possible, are provided for features that are fully supported. Proprietary extensions are not included.

Contents

[edit] Explanation of the tables

[edit] Engine nomenclature

Rather than the names of web browsers, the names of the underlying engines are used. The browsers that use the various engines are listed below.

Layout Engine Used By
Trident Internet Explorer 4 to Internet Explorer 8
Tasman Internet Explorer 5 for Mac
Gecko All Mozilla software, including Firefox; Galeon; Flock; also Epiphany
WebKit Safari; iCab 4; Epiphany;
KHTML Konqueror
Presto Opera; Nintendo DS Browser; Internet Channel
iCab iCab 1-3
Prince XML Prince XML
Amaya Amaya

[edit] Values

Values indicate the level of support in the most recent version of the layout engine, or (if a version number is given) in the specified version. Version numbers without any other value indicate the version at which the layout engine first fully supported the feature.

Value Meaning
Yes Indicates that the layout engine fully supports this property when valid values are used.
No Indicates that this property is completely ignored.
Partial Indicates that the property is understood, but that not all values are supported. Supported values are implemented correctly.
Incorrect Indicates that the property is understood, but that it is not implemented correctly in all cases.
Experimental Indicates that the property is provided in experimental form under an alternative name, generally with only partial functionality.

[edit] Image format support

Trident Tasman Gecko WebKit KHTML Presto iCab Prince XML
JPEG/JFIF 3.0 Yes 1.0 85 Yes 7.0 Yes 3.0
JPEG 2000 (.jp2) No No No [1] 412 No No No No
JBIG 2 (.jb2) No No No No No No No No
GIF GIF 89a 3.0 Yes 1.0 85 Yes 6.0 Yes 5.0
GIF 87a 3.0 Yes 1.0 85 Yes 7.0 Yes 5.0
PNG 1.2 (W3C/ISO/IEC version) Partial Yes 1.0 85 Yes 6.0 Yes 3.0
1.1 Partial Yes 1.0 85 Yes 6.0 Yes 3.0
1.0 Partial Yes 1.0 85 Yes 6.0 Yes 3.0
MNG 1.0 No No Dropped[1] No Yes No No No
JNG 1.0 No No Dropped[1] No Yes No No No
APNG 1.0 No No 1.9a3 No No[2] 9.5 No No
bitmap Yes ? Yes Yes Yes Yes ? ?
WBMP ? ? No [2] ? ? 6.0 ? ?
ICO Yes ? Yes Yes Yes 7.0 Yes ?
TIFF No No No [3] Yes Yes No No 3.0

[edit] Prince TIFF support notes

  1. Prince uses the libtiff-library to load TIFF images

[edit] JPEG support

Comparison of various JPEG/JFIF feature support.

Trident Tasman Gecko WebKit KParts Presto iCab Prince XML
Operation mode Baseline 3.0 Yes 1.0 85 Yes 6.0 Yes 3.0
Progressive 3.0 Yes 1.0 85 Yes 6.0 Yes 3.0
Hierarchical 3.0 Yes 1.0 85 Yes 6.0 Yes ?
Lossless 3.0 Yes 1.0 85 Yes 6.0 Yes No

[edit] Trident JPEG support notes

  1. Progressive — Does not support progressive display of progressive JPEG.

[edit] Prince JPEG support notes

  1. Prince uses jpeglib-library from the Independent JPEG Group to load JPEG pictures

[edit] GIF support

Comparison of various GIF feature support.

Trident Tasman Gecko WebKit KParts Presto iCab Prince XML
GIF 87a Interlacing 3.0 Yes 1.0 85 Yes 7.0 Yes 3.0
GIF 89a Binary transparency 3.0 Yes 1.0 85 Yes 6.0 Yes 3.0
Animation 3.0 Yes 1.0 85 Yes 6.0 Yes 3.0

[edit] Prince Gif support notes

  1. Prince uses the libungif-library to load Gif images

[edit] PNG support

Comparison of various PNG feature support.

Trident Tasman Gecko WebKit KParts Presto iCab Prince XML
Color mode True color 4.0 Yes 1.0 85 Yes 6.0 Yes 3.0
Grayscale 4.0 Yes 1.0 85 Yes 6.0 Yes 3.0
Palette-based (max. 256 colors) 4.0 Yes 1.0 85 Yes 6.0 Yes 3.0
Alpha channel 7.0 Yes 1.0 85 Yes 6.0 1.8 3.0
Gamma correction No Yes Partial † [4] Incorrect ? Partial† No ?
Color correction No Yes No ? ? No ? 3.0
Interlacing Incorrect Yes 1.0 ? Incorrect 6.0 ? ?
Integrity checking ? ? ? ? ? ? ? ?

[edit] General PNG support notes

  1. Color mode — There are 15 combinations of the color modes in PNG [5]. Not all modes are available in every image tool though.
  2. ^ Gecko and Presto currently support gamma correction for all color profiles except for iCC-profile [6].

[edit] Trident PNG support notes

  1. Alpha channel — PNG support was added in version 4 but alpha channel is not supported [7]. It is, however, in IE version 7 [8].
  2. Interlacing — Interlaced PNG is displayed progressively, but in 1D instead of 2D.

[edit] WebKit PNG support notes

  1. Gamma correction — It is incorrectly applied to unlabeled PNGs [9].

[edit] KHTML PNG support notes

  1. Interlacing — Interlaced PNG can be displayed, but not progressively [10].

[edit] Prince PNG support notes

  1. Prince uses libpng-library to load PNG pictures.

[edit] References

[edit] References

  1. ^ a b Bug 18574 – restore support for MNG animation format and JNG image format
  2. ^ Bug 88352: APNG animated image file format support

[edit] External links

v • d • e
Layout engines
List of layout engines
Amaya · Boxely · Gecko · GtkHTML · Gzilla · iCab · KHTML · Mariner · NetSurf · Robin · Tasman · Tkhtml · Trident · Presto · Prince · WebKit
Comparison of layout engines