gtk2/docs/reference/gdk-pixbuf/gdk-pixbuf-csource.xml
Matthias Clasen 037d233cea Work around bugs in the runlength encoder by forcing rowstride * height to
2004-08-24  Matthias Clasen  <mclasen@redhat.com>

	* gdk-pixdata.c (gdk_pixdata_from_pixbuf): Work around bugs in
	the runlength encoder by forcing rowstride * height to be
	divisible by bpp.  (#150882)
2004-08-24 13:54:26 +00:00

174 lines
4.4 KiB
XML

<refentry id="gdk-pixbuf-csource">
<refmeta>
<refentrytitle>gdk-pixbuf-csource</refentrytitle>
<manvolnum>1</manvolnum>
</refmeta>
<refnamediv>
<refname>gdk-pixbuf-csource</refname>
<refpurpose>C code generation utility for GdkPixbuf images</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>gdk-pixbuf-csource</command>
<arg choice="opt">options</arg>
<arg choice="opt">image</arg>
</cmdsynopsis>
<cmdsynopsis>
<command>gdk-pixbuf-csource</command>
<arg choice="opt">options</arg>
<arg choice="plain">--build-list</arg>
<arg rep="repeat">
<arg>name</arg>
<arg>image</arg>
</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1><title>Description</title>
<para>
<command>gdk-pixbuf-csource</command> is a small utility that generates C code
containing images, useful for compiling images directly into programs.
</para>
</refsect1>
<refsect1><title>Invocation</title>
<para>
<command>gdk-pixbuf-csource</command> either takes as input one image file name
to generate code for, or, using the <option>--build-list</option> option, a
list of (<replaceable>name</replaceable>, <replaceable>image</replaceable>)
pairs to generate code for a list of images into named variables.
</para>
<refsect2><title>Options</title>
<variablelist>
<varlistentry>
<term><option>--stream</option></term>
<listitem><para>
Generate pixbuf data stream (a single string containing a serialized
<structname>GdkPixdata</structname> structure in network byte order).
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--struct</option></term>
<listitem><para>
Generate GdkPixdata structure (needs the <structname>GdkPixdata</structname>
structure definition from <filename>gdk-pixdata.h</filename>).
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--macros</option></term>
<listitem><para>
Generate *_ROWSTRIDE, *_WIDTH, *_HEIGHT, *_BYTES_PER_PIXEL and
*_RLE_PIXEL_DATA or *_PIXEL_DATA macro definitions for the image.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--rle</option></term>
<listitem><para>
Enables run-length encoding for the generated pixel data (default).
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--raw</option></term>
<listitem><para>
Disables run-length encoding for the generated pixel data.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--extern</option></term>
<listitem><para>
Generate extern symbols.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--static</option></term>
<listitem><para>
Generate static symbols (default).
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--decoder</option></term>
<listitem><para>
Provide a *_RUN_LENGTH_DECODE(image_buf, rle_data, size, bpp) macro definition
to decode run-length encoded image data.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--name=identifier</option></term>
<listitem><para>
Specifies the identifier name (prefix) for the generated variables or
macros (useful only if <option>--build-list</option> was not specified).
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--build-list</option></term>
<listitem><para>
Enables (<replaceable>name</replaceable>, <replaceable>image</replaceable>)
pair parsing mode.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-h</option>, <option>--help</option></term>
<listitem><para>
Print brief help and exit.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-v</option>, <option>--version</option></term>
<listitem><para>
Print version and exit.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--g-fatal-warnings</option></term>
<listitem><para>
Make warnings fatal (causes the program to abort).
</para></listitem>
</varlistentry>
</variablelist>
</refsect2>
</refsect1>
<refsect1><title>See also</title>
<para>
The <structname>GdkPixbuf</structname> documentation, shipped with the
Gtk+ distribution, available from <ulink url="http://www.gtk.org">www.gtk.org</ulink>.
</para>
</refsect1>
<refsect1><title>Bugs</title>
<para>
The runlength encoder gets out of sync with the pixel boundaries, since
it includes the rowstride padding in the encoded stream. Furthermore, it
generates pixbufs with suboptimal rowstride in some cases.
</para>
</refsect1>
<refsect1><title>Author</title>
<para>
<command>gdk-pixbuf-csource</command> was written by Tim Janik
<email>timj@gtk.org</email>.
</para>
<para>
This manual page was provided by Tim Janik <email>timj@gtk.org</email>.
</para>
</refsect1>
</refentry>