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

57 lines
2.2 KiB
Factor

! Copyright (C) 2010 Anton Gorenko.
! See http://factorcode.org/license.txt for BSD license.
USING: alien alien.c-types 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" ] }
{ [ os macosx? ] [ "libgdk_pixbuf-2.0.dylib" ] }
{ [ os unix? ] [ "libgdk_pixbuf-2.0.so" ] }
} cond cdecl add-library >>
GIR: vocab:gdk/pixbuf/GdkPixbuf-2.0.gir
! <workaround incorrect return-values in gir
FORGET: gdk_pixbuf_get_pixels
FUNCTION: guint8* gdk_pixbuf_get_pixels ( GdkPixbuf* pixbuf )
FORGET: gdk_pixbuf_new_from_data
FUNCTION: GdkPixbuf* gdk_pixbuf_new_from_data ( guint8* data,
GdkColorspace colorspace,
gboolean has_alpha,
int bits_per_sample,
int width,
int height,
int rowstride,
GdkPixbufDestroyNotify destroy_fn,
gpointer destroy_fn_data )
FORGET: gdk_pixbuf_save_to_bufferv
FUNCTION: gboolean gdk_pixbuf_save_to_bufferv ( GdkPixbuf* pixbuf,
guint8** data,
gsize* buffer_size,
c-string type,
char **option_keys,
char **option_values,
GError **error )
! 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 ;