Introduction to Gdk Pixbuf
The Gdk Pixbuf package is a
toolkit for image loading and pixel buffer manipulation. It is used
by GTK+ 3 to load and manipulate
images. In the past it was distributed as part of GTK+ 2, but it was split off into a separate
package in preparation for the change to GTK+ 3.
Note
Development versions of BLFS may not build or run some packages
properly if LFS or dependencies have been updated since the most
recent stable versions of the books.
Package Information
Gdk Pixbuf Dependencies
Required
GLib-2.82.1 (GObject Introspection required for
GNOME), libjpeg-turbo-3.0.1, libpng-1.6.44, and shared-mime-info-2.4
Recommended
docutils-0.21.2, librsvg-2.59.1
(runtime dependency, needed for loading symbolic icons) and
libtiff-4.7.0
Optional
Gi-DocGen-2024.1 (to generate
documentation), libavif-1.1.1 (runtime dependency, needed
for loading AVIF images), libjxl-0.11.0
(runtime dependency, needed for loading JPEG XL images), and
webp-pixbuf-loader-0.2.7 (runtime
dependency, needed for loading WebP images)
Installation of Gdk Pixbuf
Install Gdk Pixbuf by running the
following commands:
mkdir build &&
cd build &&
meson setup .. \
--prefix=/usr \
--buildtype=release \
-D others=enabled \
--wrap-mode=nofallback &&
ninja
If you have Gi-DocGen-2024.1 installed and wish to build
the API documentation for this package, issue:
sed "/docs_dir =/s@\$@ / 'gdk-pixbuf-2.42.12'@" -i ../docs/meson.build &&
meson configure -D gtk_doc=true &&
ninja
To test the results, issue: ninja
test. The tests make a heavy use of disk.
Now, as the root
user:
ninja install
Note
If you installed the package on to your system using a
“DESTDIR”
method, an important file was not installed and should be copied
and/or generated. Generate it using the following command as the
root
user:
gdk-pixbuf-query-loaders --update-cache
Command Explanations
--buildtype=release
:
Specify a buildtype suitable for stable releases of the package, as
the default may produce unoptimized binaries.
--wrap-mode=nofallback
:
This switch prevents meson from using subproject
fallbacks for any dependency declarations in the build files,
stopping it downloading any optional dependency which is not
installed on the system.
-D others=enabled
: Enable
the loaders for various image formats, for example BMP and XPM.
-D man=false
: Use this option if you do
not want to generate manual pages, or if you do not want to install
docutils-0.21.2.
Contents
Installed Programs:
gdk-pixbuf-csource, gdk-pixbuf-pixdata,
gdk-pixbuf-query-loaders, and gdk-pixbuf-thumbnailer
Installed Libraries:
libgdk_pixbuf-2.0.so
Installed Directories:
/usr/{include,lib}/gdk-pixbuf-2.0,
/usr/libexec/installed-tests/gdk-pixbuf,
/usr/share/installed-tests/gdk-pixbuf,
/usr/share/gtk-doc/html/gdk-pixbuf, and
/usr/share/thumbnailers
Short Descriptions
gdk-pixbuf-csource
|
is a small utility that generates C code containing
images, used for compiling images directly into programs
|
gdk-pixbuf-pixdata
|
is a tool used to convert GdkPixbuf to GdkPixdata
|
gdk-pixbuf-query-loaders
|
collects information about loadable modules for
Gdk Pixbuf and writes it
to the default cache file location, or to stdout
|
gdk-pixbuf-thumbnailer
|
creates thumbnails of pictures for use in other
applications
|
libgdk_pixbuf-2.0.so
|
contains functions used to load and render images
|