cairo/doc/reference/xml/cairo_format_t.xml

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<refentry id="cairo_format_t">
<refmeta>
<refentrytitle>cairo_format_t</refentrytitle>
<manvolnum>3</manvolnum>
</refmeta>
<refnamediv>
<refname>cairo_format_t</refname>
<refpurpose>enumeration for image formats</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<indexterm><primary>enums</primary>
<secondary>cairo_format_t</secondary></indexterm>
<programlisting>typedef enum cairo_format {
CAIRO_FORMAT_ARGB32 = PictStandardARGB32,
CAIRO_FORMAT_RGB24 = PictStandardRGB24,
CAIRO_FORMAT_A8 = PictStandardA8,
CAIRO_FORMAT_A1 = PictStandardA1
} cairo_format_t;
</programlisting>
<para>
Possible formats for in-memory images.
</para>
<variablelist role="enum">
<varlistentry>
<term><literal>CAIRO_FORMAT_ARGB32</literal></term>
<listitem><simpara>one byte for red, green, blue and alpha. (rowstride = width * 4)
</simpara></listitem>
</varlistentry>
<varlistentry>
<term><literal>CAIRO_FORMAT_RGB24</literal></term>
<listitem><simpara>one byte for red, green and blue (rowstride = width * 4)
</simpara></listitem>
</varlistentry>
<varlistentry>
<term><literal>CAIRO_FORMAT_A8</literal></term>
<listitem><simpara>indexed color image
</simpara></listitem>
</varlistentry>
<varlistentry>
<term><literal>CAIRO_FORMAT_A1</literal></term>
<listitem><simpara>a bitmap
</simpara></listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>