mirror of
https://invent.kde.org/frameworks/kimageformats.git
synced 2025-05-28 00:30:23 -04:00
e5fce91de6
They were already disabled when building with Qt >= 5.3 in commit
3d45b270ea because Qt has better plugins
for those image formats. Now that we depend on Qt 5.3 we can remove
them.
REVIEW: 124636
64 lines
1.9 KiB
Markdown
64 lines
1.9 KiB
Markdown
# KImageFormats
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Plugins to allow QImage to support extra file formats.
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## Introduction
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This framework provides additional image format plugins for QtGui. As
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such it is not required for the compilation of any other software, but
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may be a runtime requirement for Qt-based software to support certain
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image formats.
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## Formats
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The following image formats have read-only support:
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- Gimp (xcf)
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- OpenEXR (exr)
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- Photoshop documents (psd)
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- Sun Raster (ras)
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The following image formats have read and write support:
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- Encapsulated PostScript (eps)
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- Personal Computer Exchange (pcx)
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- SGI images (rgb, rgba, sgi, bw)
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- Softimage PIC (pic)
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- Targa (tga): supports more formats than Qt's version
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- XView (xv)
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## Contributing
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See the QImageIOPlugin documentation for information on how to write a
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new plugin.
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The main difference between this framework and the qimageformats module
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of Qt is the license. As such, if you write an imageformat plugin and
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you are willing to sign the Qt Project contributor agreement, it may be
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better to submit the plugin directly to the Qt Project.
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Note that the imageformat plugins provided by this module also provide a
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desktop file. This is for the benefit of KImageIO in the KDE4 Support
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framework.
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## Duplicated Plugins
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The TGA plugin supports more formats than Qt's own TGA plugin;
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specifically, the one provided here supports indexed, greyscale and RLE
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images (types 1-3 and 9-11), while Qt's plugin only supports type 2
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(RGB) files.
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The code for this cannot be contributed upstream directly because of
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licensing. If anyone were willing to write fresh code to improve Qt's
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TGA plugin, it would allow the TGA plugin in this framework to be
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removed.
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## License
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This framework is licensed under the
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[LGPLv2.1](http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html#SEC1).
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The CMake code in this framework is licensed under the
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[BSD license](http://opensource.org/licenses/BSD-3-Clause).
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