C++ (Cpp) gdk_pixbuf_save_to_bufferv Exemples

Exemple #1

Fichier : gth-png-saver.c Projet : Peliadia/gthumb

static gboolean
gth_png_saver_save_pixbuf (GthPixbufSaver  *self,
			   GdkPixbuf       *pixbuf,
			   char           **buffer,
			   gsize           *buffer_size,
			   const char      *mime_type,
			   GError         **error)
{
	char      *pixbuf_type;
	char     **option_keys;
	char     **option_values;
	int        i = -1;
	int        i_value;
	gboolean   result;

	pixbuf_type = get_pixbuf_type_from_mime_type (mime_type);

	option_keys = g_malloc (sizeof (char *) * 2);
	option_values = g_malloc (sizeof (char *) * 2);

	i++;
	i_value = eel_gconf_get_integer (PREF_PNG_COMPRESSION_LEVEL, 6);
	option_keys[i] = g_strdup ("compression");;
	option_values[i] = g_strdup_printf ("%d", i_value);

	i++;
	option_keys[i] = NULL;
	option_values[i] = NULL;

	result = gdk_pixbuf_save_to_bufferv (pixbuf,
					     buffer,
					     buffer_size,
					     pixbuf_type,
					     option_keys,
					     option_values,
					     error);

	g_strfreev (option_keys);
	g_strfreev (option_values);
	g_free (pixbuf_type);

	return result;
}

Exemple #2

Fichier : gth-image-saver-jpeg.c Projet : KapTmaN/gthumb

static gboolean
gth_image_saver_jpeg_save_image (GthImageSaver  *base,
				 GthImage       *image,
				 char          **buffer,
				 gsize          *buffer_size,
				 const char     *mime_type,
				 GCancellable   *cancellable,
				 GError        **error)
{
#ifdef HAVE_LIBJPEG
	GthImageSaverJpeg  *self = GTH_IMAGE_SAVER_JPEG (base);
	char              **option_keys;
	char              **option_values;
	int                 i = -1;
	int                 i_value;
	cairo_surface_t    *surface;
	gboolean            result;

	option_keys = g_malloc (sizeof (char *) * 5);
	option_values = g_malloc (sizeof (char *) * 5);

	i++;
	i_value = g_settings_get_int (self->priv->settings, PREF_JPEG_QUALITY);
	option_keys[i] = g_strdup ("quality");
	option_values[i] = g_strdup_printf ("%d", i_value);

	i++;
	i_value = g_settings_get_int (self->priv->settings, PREF_JPEG_SMOOTHING);
	option_keys[i] = g_strdup ("smooth");
	option_values[i] = g_strdup_printf ("%d", i_value);

	i++;
	i_value = g_settings_get_boolean (self->priv->settings, PREF_JPEG_OPTIMIZE);
	option_keys[i] = g_strdup ("optimize");
	option_values[i] = g_strdup (i_value != 0 ? "yes" : "no");

	i++;
	i_value = g_settings_get_boolean (self->priv->settings, PREF_JPEG_PROGRESSIVE);
	option_keys[i] = g_strdup ("progressive");
	option_values[i] = g_strdup (i_value != 0 ? "yes" : "no");

	i++;
	option_keys[i] = NULL;
	option_values[i] = NULL;

	surface = gth_image_get_cairo_surface (image);
	result = _cairo_surface_write_as_jpeg (surface,
					       buffer,
					       buffer_size,
					       option_keys,
					       option_values,
					       error);

	cairo_surface_destroy (surface);
	g_strfreev (option_keys);
	g_strfreev (option_values);

#else /* ! HAVE_LIBJPEG */

	GdkPixbuf *pixbuf;
	char      *pixbuf_type;
	gboolean   result;

	pixbuf = gth_image_get_pixbuf (image);
	pixbuf_type = get_pixbuf_type_from_mime_type (mime_type);
	result = gdk_pixbuf_save_to_bufferv (pixbuf,
					     buffer,
					     buffer_size,
					     pixbuf_type,
					     NULL,
					     NULL,
					     error);

	g_free (pixbuf_type);
	g_object_unref (pixbuf);

#endif /* HAVE_LIBJPEG */

	return result;
}