factor/basis/gdk/pixbuf/ffi/ffi.factor

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Factor

! Copyright (C) 2010 Anton Gorenko.
! See http://factorcode.org/license.txt for BSD license.
USING: alien alien.data alien.libraries alien.syntax
combinators gio.ffi glib.ffi gobject-introspection
gobject-introspection.standard-types kernel libc
sequences system vocabs ;
IN: gdk.pixbuf.ffi
<<
"gio.ffi" require
>>
LIBRARY: gdk.pixbuf
<<
"gdk.pixbuf" {
{ [ os windows? ] [ "libgdk_pixbuf-2.0-0.dll" cdecl add-library ] }
{ [ os macosx? ] [ "libgdk_pixbuf-2.0.dylib" cdecl add-library ] }
{ [ os unix? ] [ "libgdk_pixbuf-2.0.so" cdecl add-library ] }
} cond
>>
GIR: vocab:gdk/pixbuf/GdkPixbuf-2.0.gir
! <workaround incorrect return-value in gir
FORGET: gdk_pixbuf_get_pixels
FUNCTION: guint8* gdk_pixbuf_get_pixels ( GdkPixbuf* pixbuf ) ;
! workaround>
: data>GInputStream ( data -- GInputStream )
[ malloc-byte-array &free ] [ length ] bi
f g_memory_input_stream_new_from_data ;
: GInputStream>GdkPixbuf ( GInputStream -- GdkPixbuf )
f { { pointer: GError initial: f } }
[ gdk_pixbuf_new_from_stream ] with-out-parameters
handle-GError ;