From 143bfc9f801c84428074312d661f8e08803df83b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= <debian@jff-webhosting.net>
Date: Sat, 20 Aug 2016 15:09:31 +0200
Subject: Imported Upstream version 0.23.5

---
 src/photos/PngSupport.c | 1929 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 1929 insertions(+)
 create mode 100644 src/photos/PngSupport.c

(limited to 'src/photos/PngSupport.c')

diff --git a/src/photos/PngSupport.c b/src/photos/PngSupport.c
new file mode 100644
index 0000000..98d4cd2
--- /dev/null
+++ b/src/photos/PngSupport.c
@@ -0,0 +1,1929 @@
+/* PngSupport.c generated by valac 0.32.1, the Vala compiler
+ * generated from PngSupport.vala, do not modify */
+
+/* Copyright 2016 Software Freedom Conservancy Inc.
+ *
+ * This software is licensed under the GNU LGPL (version 2.1 or later).
+ * See the COPYING file in this distribution.
+ */
+
+#include <glib.h>
+#include <glib-object.h>
+#include <stdlib.h>
+#include <string.h>
+#include <glib/gi18n-lib.h>
+#include <gio/gio.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+
+
+#define TYPE_PHOTO_FILE_FORMAT_PROPERTIES (photo_file_format_properties_get_type ())
+#define PHOTO_FILE_FORMAT_PROPERTIES(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PHOTO_FILE_FORMAT_PROPERTIES, PhotoFileFormatProperties))
+#define PHOTO_FILE_FORMAT_PROPERTIES_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PHOTO_FILE_FORMAT_PROPERTIES, PhotoFileFormatPropertiesClass))
+#define IS_PHOTO_FILE_FORMAT_PROPERTIES(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PHOTO_FILE_FORMAT_PROPERTIES))
+#define IS_PHOTO_FILE_FORMAT_PROPERTIES_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PHOTO_FILE_FORMAT_PROPERTIES))
+#define PHOTO_FILE_FORMAT_PROPERTIES_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PHOTO_FILE_FORMAT_PROPERTIES, PhotoFileFormatPropertiesClass))
+
+typedef struct _PhotoFileFormatProperties PhotoFileFormatProperties;
+typedef struct _PhotoFileFormatPropertiesClass PhotoFileFormatPropertiesClass;
+typedef struct _PhotoFileFormatPropertiesPrivate PhotoFileFormatPropertiesPrivate;
+
+#define TYPE_PHOTO_FILE_FORMAT (photo_file_format_get_type ())
+
+#define TYPE_PHOTO_FILE_FORMAT_FLAGS (photo_file_format_flags_get_type ())
+
+#define TYPE_PNG_FILE_FORMAT_PROPERTIES (png_file_format_properties_get_type ())
+#define PNG_FILE_FORMAT_PROPERTIES(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatProperties))
+#define PNG_FILE_FORMAT_PROPERTIES_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatPropertiesClass))
+#define IS_PNG_FILE_FORMAT_PROPERTIES(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PNG_FILE_FORMAT_PROPERTIES))
+#define IS_PNG_FILE_FORMAT_PROPERTIES_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PNG_FILE_FORMAT_PROPERTIES))
+#define PNG_FILE_FORMAT_PROPERTIES_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatPropertiesClass))
+
+typedef struct _PngFileFormatProperties PngFileFormatProperties;
+typedef struct _PngFileFormatPropertiesClass PngFileFormatPropertiesClass;
+typedef struct _PngFileFormatPropertiesPrivate PngFileFormatPropertiesPrivate;
+#define _photo_file_format_properties_unref0(var) ((var == NULL) ? NULL : (var = (photo_file_format_properties_unref (var), NULL)))
+
+#define TYPE_PHOTO_FILE_SNIFFER (photo_file_sniffer_get_type ())
+#define PHOTO_FILE_SNIFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PHOTO_FILE_SNIFFER, PhotoFileSniffer))
+#define PHOTO_FILE_SNIFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PHOTO_FILE_SNIFFER, PhotoFileSnifferClass))
+#define IS_PHOTO_FILE_SNIFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PHOTO_FILE_SNIFFER))
+#define IS_PHOTO_FILE_SNIFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PHOTO_FILE_SNIFFER))
+#define PHOTO_FILE_SNIFFER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PHOTO_FILE_SNIFFER, PhotoFileSnifferClass))
+
+typedef struct _PhotoFileSniffer PhotoFileSniffer;
+typedef struct _PhotoFileSnifferClass PhotoFileSnifferClass;
+typedef struct _PhotoFileSnifferPrivate PhotoFileSnifferPrivate;
+
+#define TYPE_DETECTED_PHOTO_INFORMATION (detected_photo_information_get_type ())
+#define DETECTED_PHOTO_INFORMATION(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_DETECTED_PHOTO_INFORMATION, DetectedPhotoInformation))
+#define DETECTED_PHOTO_INFORMATION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_DETECTED_PHOTO_INFORMATION, DetectedPhotoInformationClass))
+#define IS_DETECTED_PHOTO_INFORMATION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_DETECTED_PHOTO_INFORMATION))
+#define IS_DETECTED_PHOTO_INFORMATION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_DETECTED_PHOTO_INFORMATION))
+#define DETECTED_PHOTO_INFORMATION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_DETECTED_PHOTO_INFORMATION, DetectedPhotoInformationClass))
+
+typedef struct _DetectedPhotoInformation DetectedPhotoInformation;
+typedef struct _DetectedPhotoInformationClass DetectedPhotoInformationClass;
+
+#define PHOTO_FILE_SNIFFER_TYPE_OPTIONS (photo_file_sniffer_options_get_type ())
+
+#define TYPE_GDK_SNIFFER (gdk_sniffer_get_type ())
+#define GDK_SNIFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_GDK_SNIFFER, GdkSniffer))
+#define GDK_SNIFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_GDK_SNIFFER, GdkSnifferClass))
+#define IS_GDK_SNIFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_GDK_SNIFFER))
+#define IS_GDK_SNIFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_GDK_SNIFFER))
+#define GDK_SNIFFER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_GDK_SNIFFER, GdkSnifferClass))
+
+typedef struct _GdkSniffer GdkSniffer;
+typedef struct _GdkSnifferClass GdkSnifferClass;
+typedef struct _GdkSnifferPrivate GdkSnifferPrivate;
+
+#define TYPE_PNG_SNIFFER (png_sniffer_get_type ())
+#define PNG_SNIFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PNG_SNIFFER, PngSniffer))
+#define PNG_SNIFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PNG_SNIFFER, PngSnifferClass))
+#define IS_PNG_SNIFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PNG_SNIFFER))
+#define IS_PNG_SNIFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PNG_SNIFFER))
+#define PNG_SNIFFER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PNG_SNIFFER, PngSnifferClass))
+
+typedef struct _PngSniffer PngSniffer;
+typedef struct _PngSnifferClass PngSnifferClass;
+typedef struct _PngSnifferPrivate PngSnifferPrivate;
+#define _g_object_unref0(var) ((var == NULL) ? NULL : (var = (g_object_unref (var), NULL)))
+#define _detected_photo_information_unref0(var) ((var == NULL) ? NULL : (var = (detected_photo_information_unref (var), NULL)))
+typedef struct _DetectedPhotoInformationPrivate DetectedPhotoInformationPrivate;
+
+#define TYPE_MEDIA_METADATA (media_metadata_get_type ())
+#define MEDIA_METADATA(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_MEDIA_METADATA, MediaMetadata))
+#define MEDIA_METADATA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_MEDIA_METADATA, MediaMetadataClass))
+#define IS_MEDIA_METADATA(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_MEDIA_METADATA))
+#define IS_MEDIA_METADATA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_MEDIA_METADATA))
+#define MEDIA_METADATA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_MEDIA_METADATA, MediaMetadataClass))
+
+typedef struct _MediaMetadata MediaMetadata;
+typedef struct _MediaMetadataClass MediaMetadataClass;
+
+#define TYPE_PHOTO_METADATA (photo_metadata_get_type ())
+#define PHOTO_METADATA(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PHOTO_METADATA, PhotoMetadata))
+#define PHOTO_METADATA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PHOTO_METADATA, PhotoMetadataClass))
+#define IS_PHOTO_METADATA(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PHOTO_METADATA))
+#define IS_PHOTO_METADATA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PHOTO_METADATA))
+#define PHOTO_METADATA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PHOTO_METADATA, PhotoMetadataClass))
+
+typedef struct _PhotoMetadata PhotoMetadata;
+typedef struct _PhotoMetadataClass PhotoMetadataClass;
+
+#define TYPE_DIMENSIONS (dimensions_get_type ())
+typedef struct _Dimensions Dimensions;
+
+#define TYPE_PHOTO_FILE_ADAPTER (photo_file_adapter_get_type ())
+#define PHOTO_FILE_ADAPTER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PHOTO_FILE_ADAPTER, PhotoFileAdapter))
+#define PHOTO_FILE_ADAPTER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PHOTO_FILE_ADAPTER, PhotoFileAdapterClass))
+#define IS_PHOTO_FILE_ADAPTER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PHOTO_FILE_ADAPTER))
+#define IS_PHOTO_FILE_ADAPTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PHOTO_FILE_ADAPTER))
+#define PHOTO_FILE_ADAPTER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PHOTO_FILE_ADAPTER, PhotoFileAdapterClass))
+
+typedef struct _PhotoFileAdapter PhotoFileAdapter;
+typedef struct _PhotoFileAdapterClass PhotoFileAdapterClass;
+typedef struct _PhotoFileAdapterPrivate PhotoFileAdapterPrivate;
+
+#define TYPE_PHOTO_FILE_READER (photo_file_reader_get_type ())
+#define PHOTO_FILE_READER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PHOTO_FILE_READER, PhotoFileReader))
+#define PHOTO_FILE_READER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PHOTO_FILE_READER, PhotoFileReaderClass))
+#define IS_PHOTO_FILE_READER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PHOTO_FILE_READER))
+#define IS_PHOTO_FILE_READER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PHOTO_FILE_READER))
+#define PHOTO_FILE_READER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PHOTO_FILE_READER, PhotoFileReaderClass))
+
+typedef struct _PhotoFileReader PhotoFileReader;
+typedef struct _PhotoFileReaderClass PhotoFileReaderClass;
+typedef struct _PhotoFileReaderPrivate PhotoFileReaderPrivate;
+
+#define TYPE_GDK_READER (gdk_reader_get_type ())
+#define GDK_READER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_GDK_READER, GdkReader))
+#define GDK_READER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_GDK_READER, GdkReaderClass))
+#define IS_GDK_READER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_GDK_READER))
+#define IS_GDK_READER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_GDK_READER))
+#define GDK_READER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_GDK_READER, GdkReaderClass))
+
+typedef struct _GdkReader GdkReader;
+typedef struct _GdkReaderClass GdkReaderClass;
+typedef struct _GdkReaderPrivate GdkReaderPrivate;
+
+#define TYPE_PNG_READER (png_reader_get_type ())
+#define PNG_READER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PNG_READER, PngReader))
+#define PNG_READER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PNG_READER, PngReaderClass))
+#define IS_PNG_READER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PNG_READER))
+#define IS_PNG_READER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PNG_READER))
+#define PNG_READER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PNG_READER, PngReaderClass))
+
+typedef struct _PngReader PngReader;
+typedef struct _PngReaderClass PngReaderClass;
+typedef struct _PngReaderPrivate PngReaderPrivate;
+
+#define TYPE_SCALE_CONSTRAINT (scale_constraint_get_type ())
+#define _g_free0(var) (var = (g_free (var), NULL))
+
+#define TYPE_PHOTO_FILE_WRITER (photo_file_writer_get_type ())
+#define PHOTO_FILE_WRITER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PHOTO_FILE_WRITER, PhotoFileWriter))
+#define PHOTO_FILE_WRITER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PHOTO_FILE_WRITER, PhotoFileWriterClass))
+#define IS_PHOTO_FILE_WRITER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PHOTO_FILE_WRITER))
+#define IS_PHOTO_FILE_WRITER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PHOTO_FILE_WRITER))
+#define PHOTO_FILE_WRITER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PHOTO_FILE_WRITER, PhotoFileWriterClass))
+
+typedef struct _PhotoFileWriter PhotoFileWriter;
+typedef struct _PhotoFileWriterClass PhotoFileWriterClass;
+typedef struct _PhotoFileWriterPrivate PhotoFileWriterPrivate;
+
+#define JPEG_TYPE_QUALITY (jpeg_quality_get_type ())
+
+#define TYPE_PNG_WRITER (png_writer_get_type ())
+#define PNG_WRITER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PNG_WRITER, PngWriter))
+#define PNG_WRITER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PNG_WRITER, PngWriterClass))
+#define IS_PNG_WRITER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PNG_WRITER))
+#define IS_PNG_WRITER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PNG_WRITER))
+#define PNG_WRITER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PNG_WRITER, PngWriterClass))
+
+typedef struct _PngWriter PngWriter;
+typedef struct _PngWriterClass PngWriterClass;
+typedef struct _PngWriterPrivate PngWriterPrivate;
+
+#define TYPE_PHOTO_FILE_METADATA_WRITER (photo_file_metadata_writer_get_type ())
+#define PHOTO_FILE_METADATA_WRITER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PHOTO_FILE_METADATA_WRITER, PhotoFileMetadataWriter))
+#define PHOTO_FILE_METADATA_WRITER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PHOTO_FILE_METADATA_WRITER, PhotoFileMetadataWriterClass))
+#define IS_PHOTO_FILE_METADATA_WRITER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PHOTO_FILE_METADATA_WRITER))
+#define IS_PHOTO_FILE_METADATA_WRITER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PHOTO_FILE_METADATA_WRITER))
+#define PHOTO_FILE_METADATA_WRITER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PHOTO_FILE_METADATA_WRITER, PhotoFileMetadataWriterClass))
+
+typedef struct _PhotoFileMetadataWriter PhotoFileMetadataWriter;
+typedef struct _PhotoFileMetadataWriterClass PhotoFileMetadataWriterClass;
+typedef struct _PhotoFileMetadataWriterPrivate PhotoFileMetadataWriterPrivate;
+
+#define TYPE_PNG_METADATA_WRITER (png_metadata_writer_get_type ())
+#define PNG_METADATA_WRITER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PNG_METADATA_WRITER, PngMetadataWriter))
+#define PNG_METADATA_WRITER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PNG_METADATA_WRITER, PngMetadataWriterClass))
+#define IS_PNG_METADATA_WRITER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PNG_METADATA_WRITER))
+#define IS_PNG_METADATA_WRITER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PNG_METADATA_WRITER))
+#define PNG_METADATA_WRITER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PNG_METADATA_WRITER, PngMetadataWriterClass))
+
+typedef struct _PngMetadataWriter PngMetadataWriter;
+typedef struct _PngMetadataWriterClass PngMetadataWriterClass;
+typedef struct _PngMetadataWriterPrivate PngMetadataWriterPrivate;
+
+#define TYPE_PHOTO_FILE_FORMAT_DRIVER (photo_file_format_driver_get_type ())
+#define PHOTO_FILE_FORMAT_DRIVER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PHOTO_FILE_FORMAT_DRIVER, PhotoFileFormatDriver))
+#define PHOTO_FILE_FORMAT_DRIVER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PHOTO_FILE_FORMAT_DRIVER, PhotoFileFormatDriverClass))
+#define IS_PHOTO_FILE_FORMAT_DRIVER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PHOTO_FILE_FORMAT_DRIVER))
+#define IS_PHOTO_FILE_FORMAT_DRIVER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PHOTO_FILE_FORMAT_DRIVER))
+#define PHOTO_FILE_FORMAT_DRIVER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PHOTO_FILE_FORMAT_DRIVER, PhotoFileFormatDriverClass))
+
+typedef struct _PhotoFileFormatDriver PhotoFileFormatDriver;
+typedef struct _PhotoFileFormatDriverClass PhotoFileFormatDriverClass;
+typedef struct _PhotoFileFormatDriverPrivate PhotoFileFormatDriverPrivate;
+
+#define TYPE_PNG_FILE_FORMAT_DRIVER (png_file_format_driver_get_type ())
+#define PNG_FILE_FORMAT_DRIVER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriver))
+#define PNG_FILE_FORMAT_DRIVER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriverClass))
+#define IS_PNG_FILE_FORMAT_DRIVER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_PNG_FILE_FORMAT_DRIVER))
+#define IS_PNG_FILE_FORMAT_DRIVER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_PNG_FILE_FORMAT_DRIVER))
+#define PNG_FILE_FORMAT_DRIVER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriverClass))
+
+typedef struct _PngFileFormatDriver PngFileFormatDriver;
+typedef struct _PngFileFormatDriverClass PngFileFormatDriverClass;
+typedef struct _PngFileFormatDriverPrivate PngFileFormatDriverPrivate;
+#define _photo_file_format_driver_unref0(var) ((var == NULL) ? NULL : (var = (photo_file_format_driver_unref (var), NULL)))
+
+typedef enum  {
+	PHOTO_FILE_FORMAT_JFIF,
+	PHOTO_FILE_FORMAT_RAW,
+	PHOTO_FILE_FORMAT_PNG,
+	PHOTO_FILE_FORMAT_TIFF,
+	PHOTO_FILE_FORMAT_BMP,
+	PHOTO_FILE_FORMAT_UNKNOWN
+} PhotoFileFormat;
+
+typedef enum  {
+	PHOTO_FILE_FORMAT_FLAGS_NONE = 0x00000000
+} PhotoFileFormatFlags;
+
+struct _PhotoFileFormatProperties {
+	GTypeInstance parent_instance;
+	volatile int ref_count;
+	PhotoFileFormatPropertiesPrivate * priv;
+};
+
+struct _PhotoFileFormatPropertiesClass {
+	GTypeClass parent_class;
+	void (*finalize) (PhotoFileFormatProperties *self);
+	PhotoFileFormat (*get_file_format) (PhotoFileFormatProperties* self);
+	PhotoFileFormatFlags (*get_flags) (PhotoFileFormatProperties* self);
+	gboolean (*is_recognized_extension) (PhotoFileFormatProperties* self, const gchar* ext);
+	gchar* (*get_default_extension) (PhotoFileFormatProperties* self);
+	gchar** (*get_known_extensions) (PhotoFileFormatProperties* self, int* result_length1);
+	gchar* (*get_default_mime_type) (PhotoFileFormatProperties* self);
+	gchar** (*get_mime_types) (PhotoFileFormatProperties* self, int* result_length1);
+	gchar* (*get_user_visible_name) (PhotoFileFormatProperties* self);
+};
+
+struct _PngFileFormatProperties {
+	PhotoFileFormatProperties parent_instance;
+	PngFileFormatPropertiesPrivate * priv;
+};
+
+struct _PngFileFormatPropertiesClass {
+	PhotoFileFormatPropertiesClass parent_class;
+};
+
+typedef enum  {
+	PHOTO_FILE_SNIFFER_OPTIONS_GET_ALL = 0x00000000,
+	PHOTO_FILE_SNIFFER_OPTIONS_NO_MD5 = 0x00000001
+} PhotoFileSnifferOptions;
+
+struct _PhotoFileSniffer {
+	GTypeInstance parent_instance;
+	volatile int ref_count;
+	PhotoFileSnifferPrivate * priv;
+	GFile* file;
+	PhotoFileSnifferOptions options;
+	gboolean calc_md5;
+};
+
+struct _PhotoFileSnifferClass {
+	GTypeClass parent_class;
+	void (*finalize) (PhotoFileSniffer *self);
+	DetectedPhotoInformation* (*sniff) (PhotoFileSniffer* self, gboolean* is_corrupted, GError** error);
+};
+
+struct _GdkSniffer {
+	PhotoFileSniffer parent_instance;
+	GdkSnifferPrivate * priv;
+};
+
+struct _GdkSnifferClass {
+	PhotoFileSnifferClass parent_class;
+};
+
+struct _PngSniffer {
+	GdkSniffer parent_instance;
+	PngSnifferPrivate * priv;
+};
+
+struct _PngSnifferClass {
+	GdkSnifferClass parent_class;
+};
+
+struct _Dimensions {
+	gint width;
+	gint height;
+};
+
+struct _DetectedPhotoInformation {
+	GTypeInstance parent_instance;
+	volatile int ref_count;
+	DetectedPhotoInformationPrivate * priv;
+	PhotoFileFormat file_format;
+	PhotoMetadata* metadata;
+	gchar* md5;
+	gchar* exif_md5;
+	gchar* thumbnail_md5;
+	gchar* format_name;
+	Dimensions image_dim;
+	GdkColorspace colorspace;
+	gint channels;
+	gint bits_per_channel;
+};
+
+struct _DetectedPhotoInformationClass {
+	GTypeClass parent_class;
+	void (*finalize) (DetectedPhotoInformation *self);
+};
+
+struct _PhotoFileAdapter {
+	GTypeInstance parent_instance;
+	volatile int ref_count;
+	PhotoFileAdapterPrivate * priv;
+};
+
+struct _PhotoFileAdapterClass {
+	GTypeClass parent_class;
+	void (*finalize) (PhotoFileAdapter *self);
+};
+
+struct _PhotoFileReader {
+	PhotoFileAdapter parent_instance;
+	PhotoFileReaderPrivate * priv;
+};
+
+struct _PhotoFileReaderClass {
+	PhotoFileAdapterClass parent_class;
+	PhotoMetadata* (*read_metadata) (PhotoFileReader* self, GError** error);
+	GdkPixbuf* (*unscaled_read) (PhotoFileReader* self, GError** error);
+	GdkPixbuf* (*scaled_read) (PhotoFileReader* self, Dimensions* full, Dimensions* scaled, GError** error);
+};
+
+struct _GdkReader {
+	PhotoFileReader parent_instance;
+	GdkReaderPrivate * priv;
+};
+
+struct _GdkReaderClass {
+	PhotoFileReaderClass parent_class;
+};
+
+struct _PngReader {
+	GdkReader parent_instance;
+	PngReaderPrivate * priv;
+};
+
+struct _PngReaderClass {
+	GdkReaderClass parent_class;
+};
+
+typedef enum  {
+	SCALE_CONSTRAINT_ORIGINAL,
+	SCALE_CONSTRAINT_DIMENSIONS,
+	SCALE_CONSTRAINT_WIDTH,
+	SCALE_CONSTRAINT_HEIGHT,
+	SCALE_CONSTRAINT_FILL_VIEWPORT
+} ScaleConstraint;
+
+typedef enum  {
+	JPEG_QUALITY_LOW = 50,
+	JPEG_QUALITY_MEDIUM = 75,
+	JPEG_QUALITY_HIGH = 90,
+	JPEG_QUALITY_MAXIMUM = 100
+} JpegQuality;
+
+struct _PhotoFileWriter {
+	PhotoFileAdapter parent_instance;
+	PhotoFileWriterPrivate * priv;
+};
+
+struct _PhotoFileWriterClass {
+	PhotoFileAdapterClass parent_class;
+	void (*write) (PhotoFileWriter* self, GdkPixbuf* pixbuf, JpegQuality quality, GError** error);
+};
+
+struct _PngWriter {
+	PhotoFileWriter parent_instance;
+	PngWriterPrivate * priv;
+};
+
+struct _PngWriterClass {
+	PhotoFileWriterClass parent_class;
+};
+
+struct _PhotoFileMetadataWriter {
+	PhotoFileAdapter parent_instance;
+	PhotoFileMetadataWriterPrivate * priv;
+};
+
+struct _PhotoFileMetadataWriterClass {
+	PhotoFileAdapterClass parent_class;
+	void (*write_metadata) (PhotoFileMetadataWriter* self, PhotoMetadata* metadata, GError** error);
+};
+
+struct _PngMetadataWriter {
+	PhotoFileMetadataWriter parent_instance;
+	PngMetadataWriterPrivate * priv;
+};
+
+struct _PngMetadataWriterClass {
+	PhotoFileMetadataWriterClass parent_class;
+};
+
+struct _PhotoFileFormatDriver {
+	GTypeInstance parent_instance;
+	volatile int ref_count;
+	PhotoFileFormatDriverPrivate * priv;
+};
+
+struct _PhotoFileFormatDriverClass {
+	GTypeClass parent_class;
+	void (*finalize) (PhotoFileFormatDriver *self);
+	PhotoFileFormatProperties* (*get_properties) (PhotoFileFormatDriver* self);
+	PhotoFileReader* (*create_reader) (PhotoFileFormatDriver* self, const gchar* filepath);
+	PhotoMetadata* (*create_metadata) (PhotoFileFormatDriver* self);
+	gboolean (*can_write_image) (PhotoFileFormatDriver* self);
+	gboolean (*can_write_metadata) (PhotoFileFormatDriver* self);
+	PhotoFileWriter* (*create_writer) (PhotoFileFormatDriver* self, const gchar* filepath);
+	PhotoFileMetadataWriter* (*create_metadata_writer) (PhotoFileFormatDriver* self, const gchar* filepath);
+	PhotoFileSniffer* (*create_sniffer) (PhotoFileFormatDriver* self, GFile* file, PhotoFileSnifferOptions options);
+};
+
+struct _PngFileFormatDriver {
+	PhotoFileFormatDriver parent_instance;
+	PngFileFormatDriverPrivate * priv;
+};
+
+struct _PngFileFormatDriverClass {
+	PhotoFileFormatDriverClass parent_class;
+};
+
+
+static gpointer png_file_format_properties_parent_class = NULL;
+static gchar** png_file_format_properties_KNOWN_EXTENSIONS;
+static gint png_file_format_properties_KNOWN_EXTENSIONS_length1;
+static gchar** png_file_format_properties_KNOWN_EXTENSIONS = NULL;
+static gint png_file_format_properties_KNOWN_EXTENSIONS_length1 = 0;
+static gint _png_file_format_properties_KNOWN_EXTENSIONS_size_ = 0;
+static gchar** png_file_format_properties_KNOWN_MIME_TYPES;
+static gint png_file_format_properties_KNOWN_MIME_TYPES_length1;
+static gchar** png_file_format_properties_KNOWN_MIME_TYPES = NULL;
+static gint png_file_format_properties_KNOWN_MIME_TYPES_length1 = 0;
+static gint _png_file_format_properties_KNOWN_MIME_TYPES_size_ = 0;
+static PngFileFormatProperties* png_file_format_properties_instance;
+static PngFileFormatProperties* png_file_format_properties_instance = NULL;
+static gpointer png_sniffer_parent_class = NULL;
+static gpointer png_reader_parent_class = NULL;
+static gpointer png_writer_parent_class = NULL;
+static gpointer png_metadata_writer_parent_class = NULL;
+static gpointer png_file_format_driver_parent_class = NULL;
+static PngFileFormatDriver* png_file_format_driver_instance;
+static PngFileFormatDriver* png_file_format_driver_instance = NULL;
+
+gpointer photo_file_format_properties_ref (gpointer instance);
+void photo_file_format_properties_unref (gpointer instance);
+GParamSpec* param_spec_photo_file_format_properties (const gchar* name, const gchar* nick, const gchar* blurb, GType object_type, GParamFlags flags);
+void value_set_photo_file_format_properties (GValue* value, gpointer v_object);
+void value_take_photo_file_format_properties (GValue* value, gpointer v_object);
+gpointer value_get_photo_file_format_properties (const GValue* value);
+GType photo_file_format_properties_get_type (void) G_GNUC_CONST;
+GType photo_file_format_get_type (void) G_GNUC_CONST;
+GType photo_file_format_flags_get_type (void) G_GNUC_CONST;
+GType png_file_format_properties_get_type (void) G_GNUC_CONST;
+enum  {
+	PNG_FILE_FORMAT_PROPERTIES_DUMMY_PROPERTY
+};
+void png_file_format_properties_init (void);
+PngFileFormatProperties* png_file_format_properties_new (void);
+PngFileFormatProperties* png_file_format_properties_construct (GType object_type);
+PngFileFormatProperties* png_file_format_properties_get_instance (void);
+static PhotoFileFormat png_file_format_properties_real_get_file_format (PhotoFileFormatProperties* base);
+static PhotoFileFormatFlags png_file_format_properties_real_get_flags (PhotoFileFormatProperties* base);
+static gchar* png_file_format_properties_real_get_user_visible_name (PhotoFileFormatProperties* base);
+static gchar* png_file_format_properties_real_get_default_extension (PhotoFileFormatProperties* base);
+static gchar** png_file_format_properties_real_get_known_extensions (PhotoFileFormatProperties* base, int* result_length1);
+static gchar** _vala_array_dup14 (gchar** self, int length);
+static gchar* png_file_format_properties_real_get_default_mime_type (PhotoFileFormatProperties* base);
+static gchar** png_file_format_properties_real_get_mime_types (PhotoFileFormatProperties* base, int* result_length1);
+static gchar** _vala_array_dup15 (gchar** self, int length);
+PhotoFileFormatProperties* photo_file_format_properties_construct (GType object_type);
+static void png_file_format_properties_finalize (PhotoFileFormatProperties* obj);
+gpointer photo_file_sniffer_ref (gpointer instance);
+void photo_file_sniffer_unref (gpointer instance);
+GParamSpec* param_spec_photo_file_sniffer (const gchar* name, const gchar* nick, const gchar* blurb, GType object_type, GParamFlags flags);
+void value_set_photo_file_sniffer (GValue* value, gpointer v_object);
+void value_take_photo_file_sniffer (GValue* value, gpointer v_object);
+gpointer value_get_photo_file_sniffer (const GValue* value);
+GType photo_file_sniffer_get_type (void) G_GNUC_CONST;
+gpointer detected_photo_information_ref (gpointer instance);
+void detected_photo_information_unref (gpointer instance);
+GParamSpec* param_spec_detected_photo_information (const gchar* name, const gchar* nick, const gchar* blurb, GType object_type, GParamFlags flags);
+void value_set_detected_photo_information (GValue* value, gpointer v_object);
+void value_take_detected_photo_information (GValue* value, gpointer v_object);
+gpointer value_get_detected_photo_information (const GValue* value);
+GType detected_photo_information_get_type (void) G_GNUC_CONST;
+GType photo_file_sniffer_options_get_type (void) G_GNUC_CONST;
+GType gdk_sniffer_get_type (void) G_GNUC_CONST;
+GType png_sniffer_get_type (void) G_GNUC_CONST;
+enum  {
+	PNG_SNIFFER_DUMMY_PROPERTY
+};
+PngSniffer* png_sniffer_new (GFile* file, PhotoFileSnifferOptions options);
+PngSniffer* png_sniffer_construct (GType object_type, GFile* file, PhotoFileSnifferOptions options);
+GdkSniffer* gdk_sniffer_construct (GType object_type, GFile* file, PhotoFileSnifferOptions options);
+static gboolean png_sniffer_is_png_file (GFile* file, GError** error);
+static DetectedPhotoInformation* png_sniffer_real_sniff (PhotoFileSniffer* base, gboolean* is_corrupted, GError** error);
+DetectedPhotoInformation* photo_file_sniffer_sniff (PhotoFileSniffer* self, gboolean* is_corrupted, GError** error);
+gpointer media_metadata_ref (gpointer instance);
+void media_metadata_unref (gpointer instance);
+GParamSpec* param_spec_media_metadata (const gchar* name, const gchar* nick, const gchar* blurb, GType object_type, GParamFlags flags);
+void value_set_media_metadata (GValue* value, gpointer v_object);
+void value_take_media_metadata (GValue* value, gpointer v_object);
+gpointer value_get_media_metadata (const GValue* value);
+GType media_metadata_get_type (void) G_GNUC_CONST;
+GType photo_metadata_get_type (void) G_GNUC_CONST;
+GType dimensions_get_type (void) G_GNUC_CONST;
+Dimensions* dimensions_dup (const Dimensions* self);
+void dimensions_free (Dimensions* self);
+gpointer photo_file_adapter_ref (gpointer instance);
+void photo_file_adapter_unref (gpointer instance);
+GParamSpec* param_spec_photo_file_adapter (const gchar* name, const gchar* nick, const gchar* blurb, GType object_type, GParamFlags flags);
+void value_set_photo_file_adapter (GValue* value, gpointer v_object);
+void value_take_photo_file_adapter (GValue* value, gpointer v_object);
+gpointer value_get_photo_file_adapter (const GValue* value);
+GType photo_file_adapter_get_type (void) G_GNUC_CONST;
+GType photo_file_reader_get_type (void) G_GNUC_CONST;
+GType gdk_reader_get_type (void) G_GNUC_CONST;
+GType png_reader_get_type (void) G_GNUC_CONST;
+enum  {
+	PNG_READER_DUMMY_PROPERTY
+};
+PngReader* png_reader_new (const gchar* filepath);
+PngReader* png_reader_construct (GType object_type, const gchar* filepath);
+GdkReader* gdk_reader_construct (GType object_type, const gchar* filepath, PhotoFileFormat file_format);
+static GdkPixbuf* png_reader_real_scaled_read (PhotoFileReader* base, Dimensions* full, Dimensions* scaled, GError** error);
+GType scale_constraint_get_type (void) G_GNUC_CONST;
+void dimensions_get_scaled_by_constraint (Dimensions *self, gint scale, ScaleConstraint constraint, Dimensions* result);
+gchar* photo_file_adapter_get_filepath (PhotoFileAdapter* self);
+GType photo_file_writer_get_type (void) G_GNUC_CONST;
+GType jpeg_quality_get_type (void) G_GNUC_CONST;
+GType png_writer_get_type (void) G_GNUC_CONST;
+enum  {
+	PNG_WRITER_DUMMY_PROPERTY
+};
+PngWriter* png_writer_new (const gchar* filepath);
+PngWriter* png_writer_construct (GType object_type, const gchar* filepath);
+PhotoFileWriter* photo_file_writer_construct (GType object_type, const gchar* filepath, PhotoFileFormat file_format);
+static void png_writer_real_write (PhotoFileWriter* base, GdkPixbuf* pixbuf, JpegQuality quality, GError** error);
+GType photo_file_metadata_writer_get_type (void) G_GNUC_CONST;
+GType png_metadata_writer_get_type (void) G_GNUC_CONST;
+enum  {
+	PNG_METADATA_WRITER_DUMMY_PROPERTY
+};
+PngMetadataWriter* png_metadata_writer_new (const gchar* filepath);
+PngMetadataWriter* png_metadata_writer_construct (GType object_type, const gchar* filepath);
+PhotoFileMetadataWriter* photo_file_metadata_writer_construct (GType object_type, const gchar* filepath, PhotoFileFormat file_format);
+static void png_metadata_writer_real_write_metadata (PhotoFileMetadataWriter* base, PhotoMetadata* metadata, GError** error);
+void photo_metadata_write_to_file (PhotoMetadata* self, GFile* file, GError** error);
+GFile* photo_file_adapter_get_file (PhotoFileAdapter* self);
+gpointer photo_file_format_driver_ref (gpointer instance);
+void photo_file_format_driver_unref (gpointer instance);
+GParamSpec* param_spec_photo_file_format_driver (const gchar* name, const gchar* nick, const gchar* blurb, GType object_type, GParamFlags flags);
+void value_set_photo_file_format_driver (GValue* value, gpointer v_object);
+void value_take_photo_file_format_driver (GValue* value, gpointer v_object);
+gpointer value_get_photo_file_format_driver (const GValue* value);
+GType photo_file_format_driver_get_type (void) G_GNUC_CONST;
+GType png_file_format_driver_get_type (void) G_GNUC_CONST;
+enum  {
+	PNG_FILE_FORMAT_DRIVER_DUMMY_PROPERTY
+};
+void png_file_format_driver_init (void);
+PngFileFormatDriver* png_file_format_driver_new (void);
+PngFileFormatDriver* png_file_format_driver_construct (GType object_type);
+PngFileFormatDriver* png_file_format_driver_get_instance (void);
+static PhotoFileFormatProperties* png_file_format_driver_real_get_properties (PhotoFileFormatDriver* base);
+static PhotoFileReader* png_file_format_driver_real_create_reader (PhotoFileFormatDriver* base, const gchar* filepath);
+static gboolean png_file_format_driver_real_can_write_image (PhotoFileFormatDriver* base);
+static gboolean png_file_format_driver_real_can_write_metadata (PhotoFileFormatDriver* base);
+static PhotoFileWriter* png_file_format_driver_real_create_writer (PhotoFileFormatDriver* base, const gchar* filepath);
+static PhotoFileMetadataWriter* png_file_format_driver_real_create_metadata_writer (PhotoFileFormatDriver* base, const gchar* filepath);
+static PhotoFileSniffer* png_file_format_driver_real_create_sniffer (PhotoFileFormatDriver* base, GFile* file, PhotoFileSnifferOptions options);
+static PhotoMetadata* png_file_format_driver_real_create_metadata (PhotoFileFormatDriver* base);
+PhotoMetadata* photo_metadata_new (void);
+PhotoMetadata* photo_metadata_construct (GType object_type);
+PhotoFileFormatDriver* photo_file_format_driver_construct (GType object_type);
+static void png_file_format_driver_finalize (PhotoFileFormatDriver* obj);
+
+static const guint8 PNG_SNIFFER_MAGIC_SEQUENCE[8] = {(guint8) 137, (guint8) 80, (guint8) 78, (guint8) 71, (guint8) 13, (guint8) 10, (guint8) 26, (guint8) 10};
+
+void png_file_format_properties_init (void) {
+	PngFileFormatProperties* _tmp0_ = NULL;
+#line 14 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = png_file_format_properties_new ();
+#line 14 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_photo_file_format_properties_unref0 (png_file_format_properties_instance);
+#line 14 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_file_format_properties_instance = _tmp0_;
+#line 627 "PngSupport.c"
+}
+
+
+static gpointer _photo_file_format_properties_ref0 (gpointer self) {
+#line 18 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return self ? photo_file_format_properties_ref (self) : NULL;
+#line 634 "PngSupport.c"
+}
+
+
+PngFileFormatProperties* png_file_format_properties_get_instance (void) {
+	PngFileFormatProperties* result = NULL;
+	PngFileFormatProperties* _tmp0_ = NULL;
+	PngFileFormatProperties* _tmp1_ = NULL;
+#line 18 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = png_file_format_properties_instance;
+#line 18 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = _photo_file_format_properties_ref0 (_tmp0_);
+#line 18 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = _tmp1_;
+#line 18 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 650 "PngSupport.c"
+}
+
+
+static PhotoFileFormat png_file_format_properties_real_get_file_format (PhotoFileFormatProperties* base) {
+	PngFileFormatProperties * self;
+	PhotoFileFormat result = 0;
+#line 21 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatProperties);
+#line 22 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = PHOTO_FILE_FORMAT_PNG;
+#line 22 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 663 "PngSupport.c"
+}
+
+
+static PhotoFileFormatFlags png_file_format_properties_real_get_flags (PhotoFileFormatProperties* base) {
+	PngFileFormatProperties * self;
+	PhotoFileFormatFlags result = 0;
+#line 25 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatProperties);
+#line 26 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = PHOTO_FILE_FORMAT_FLAGS_NONE;
+#line 26 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 676 "PngSupport.c"
+}
+
+
+static gchar* png_file_format_properties_real_get_user_visible_name (PhotoFileFormatProperties* base) {
+	PngFileFormatProperties * self;
+	gchar* result = NULL;
+	const gchar* _tmp0_ = NULL;
+	gchar* _tmp1_ = NULL;
+#line 29 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatProperties);
+#line 30 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = _ ("PNG");
+#line 30 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = g_strdup (_tmp0_);
+#line 30 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = _tmp1_;
+#line 30 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 695 "PngSupport.c"
+}
+
+
+static gchar* png_file_format_properties_real_get_default_extension (PhotoFileFormatProperties* base) {
+	PngFileFormatProperties * self;
+	gchar* result = NULL;
+	gchar** _tmp0_ = NULL;
+	gint _tmp0__length1 = 0;
+	const gchar* _tmp1_ = NULL;
+	gchar* _tmp2_ = NULL;
+#line 33 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatProperties);
+#line 34 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = png_file_format_properties_KNOWN_EXTENSIONS;
+#line 34 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0__length1 = png_file_format_properties_KNOWN_EXTENSIONS_length1;
+#line 34 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = _tmp0_[0];
+#line 34 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = g_strdup (_tmp1_);
+#line 34 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = _tmp2_;
+#line 34 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 720 "PngSupport.c"
+}
+
+
+static gchar** _vala_array_dup14 (gchar** self, int length) {
+	gchar** result;
+	int i;
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = g_new0 (gchar*, length + 1);
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	for (i = 0; i < length; i++) {
+#line 731 "PngSupport.c"
+		gchar* _tmp0_ = NULL;
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp0_ = g_strdup (self[i]);
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		result[i] = _tmp0_;
+#line 737 "PngSupport.c"
+	}
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 741 "PngSupport.c"
+}
+
+
+static gchar** png_file_format_properties_real_get_known_extensions (PhotoFileFormatProperties* base, int* result_length1) {
+	PngFileFormatProperties * self;
+	gchar** result = NULL;
+	gchar** _tmp0_ = NULL;
+	gint _tmp0__length1 = 0;
+	gchar** _tmp1_ = NULL;
+	gint _tmp1__length1 = 0;
+	gchar** _tmp2_ = NULL;
+	gint _tmp2__length1 = 0;
+#line 37 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatProperties);
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = png_file_format_properties_KNOWN_EXTENSIONS;
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0__length1 = png_file_format_properties_KNOWN_EXTENSIONS_length1;
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = (_tmp0_ != NULL) ? _vala_array_dup14 (_tmp0_, _tmp0__length1) : ((gpointer) _tmp0_);
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1__length1 = _tmp0__length1;
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = _tmp1_;
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2__length1 = _tmp1__length1;
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (result_length1) {
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		*result_length1 = _tmp2__length1;
+#line 772 "PngSupport.c"
+	}
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = _tmp2_;
+#line 38 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 778 "PngSupport.c"
+}
+
+
+static gchar* png_file_format_properties_real_get_default_mime_type (PhotoFileFormatProperties* base) {
+	PngFileFormatProperties * self;
+	gchar* result = NULL;
+	gchar** _tmp0_ = NULL;
+	gint _tmp0__length1 = 0;
+	const gchar* _tmp1_ = NULL;
+	gchar* _tmp2_ = NULL;
+#line 41 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatProperties);
+#line 42 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = png_file_format_properties_KNOWN_MIME_TYPES;
+#line 42 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0__length1 = png_file_format_properties_KNOWN_MIME_TYPES_length1;
+#line 42 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = _tmp0_[0];
+#line 42 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = g_strdup (_tmp1_);
+#line 42 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = _tmp2_;
+#line 42 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 803 "PngSupport.c"
+}
+
+
+static gchar** _vala_array_dup15 (gchar** self, int length) {
+	gchar** result;
+	int i;
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = g_new0 (gchar*, length + 1);
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	for (i = 0; i < length; i++) {
+#line 814 "PngSupport.c"
+		gchar* _tmp0_ = NULL;
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp0_ = g_strdup (self[i]);
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		result[i] = _tmp0_;
+#line 820 "PngSupport.c"
+	}
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 824 "PngSupport.c"
+}
+
+
+static gchar** png_file_format_properties_real_get_mime_types (PhotoFileFormatProperties* base, int* result_length1) {
+	PngFileFormatProperties * self;
+	gchar** result = NULL;
+	gchar** _tmp0_ = NULL;
+	gint _tmp0__length1 = 0;
+	gchar** _tmp1_ = NULL;
+	gint _tmp1__length1 = 0;
+	gchar** _tmp2_ = NULL;
+	gint _tmp2__length1 = 0;
+#line 45 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatProperties);
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = png_file_format_properties_KNOWN_MIME_TYPES;
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0__length1 = png_file_format_properties_KNOWN_MIME_TYPES_length1;
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = (_tmp0_ != NULL) ? _vala_array_dup15 (_tmp0_, _tmp0__length1) : ((gpointer) _tmp0_);
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1__length1 = _tmp0__length1;
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = _tmp1_;
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2__length1 = _tmp1__length1;
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (result_length1) {
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		*result_length1 = _tmp2__length1;
+#line 855 "PngSupport.c"
+	}
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = _tmp2_;
+#line 46 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 861 "PngSupport.c"
+}
+
+
+PngFileFormatProperties* png_file_format_properties_construct (GType object_type) {
+	PngFileFormatProperties* self = NULL;
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = (PngFileFormatProperties*) photo_file_format_properties_construct (object_type);
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return self;
+#line 871 "PngSupport.c"
+}
+
+
+PngFileFormatProperties* png_file_format_properties_new (void) {
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return png_file_format_properties_construct (TYPE_PNG_FILE_FORMAT_PROPERTIES);
+#line 878 "PngSupport.c"
+}
+
+
+static void png_file_format_properties_class_init (PngFileFormatPropertiesClass * klass) {
+	gchar* _tmp0_ = NULL;
+	gchar** _tmp1_ = NULL;
+	gchar* _tmp2_ = NULL;
+	gchar** _tmp3_ = NULL;
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_file_format_properties_parent_class = g_type_class_peek_parent (klass);
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatPropertiesClass *) klass)->finalize = png_file_format_properties_finalize;
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatPropertiesClass *) klass)->get_file_format = png_file_format_properties_real_get_file_format;
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatPropertiesClass *) klass)->get_flags = png_file_format_properties_real_get_flags;
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatPropertiesClass *) klass)->get_user_visible_name = png_file_format_properties_real_get_user_visible_name;
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatPropertiesClass *) klass)->get_default_extension = png_file_format_properties_real_get_default_extension;
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatPropertiesClass *) klass)->get_known_extensions = png_file_format_properties_real_get_known_extensions;
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatPropertiesClass *) klass)->get_default_mime_type = png_file_format_properties_real_get_default_mime_type;
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatPropertiesClass *) klass)->get_mime_types = png_file_format_properties_real_get_mime_types;
+#line 8 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = g_strdup ("png");
+#line 8 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = g_new0 (gchar*, 1 + 1);
+#line 8 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_[0] = _tmp0_;
+#line 8 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_file_format_properties_KNOWN_EXTENSIONS = _tmp1_;
+#line 8 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_file_format_properties_KNOWN_EXTENSIONS_length1 = 1;
+#line 9 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = g_strdup ("image/png");
+#line 9 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp3_ = g_new0 (gchar*, 1 + 1);
+#line 9 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp3_[0] = _tmp2_;
+#line 9 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_file_format_properties_KNOWN_MIME_TYPES = _tmp3_;
+#line 9 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_file_format_properties_KNOWN_MIME_TYPES_length1 = 1;
+#line 925 "PngSupport.c"
+}
+
+
+static void png_file_format_properties_instance_init (PngFileFormatProperties * self) {
+}
+
+
+static void png_file_format_properties_finalize (PhotoFileFormatProperties* obj) {
+	PngFileFormatProperties * self;
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (obj, TYPE_PNG_FILE_FORMAT_PROPERTIES, PngFileFormatProperties);
+#line 7 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	PHOTO_FILE_FORMAT_PROPERTIES_CLASS (png_file_format_properties_parent_class)->finalize (obj);
+#line 939 "PngSupport.c"
+}
+
+
+GType png_file_format_properties_get_type (void) {
+	static volatile gsize png_file_format_properties_type_id__volatile = 0;
+	if (g_once_init_enter (&png_file_format_properties_type_id__volatile)) {
+		static const GTypeInfo g_define_type_info = { sizeof (PngFileFormatPropertiesClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) png_file_format_properties_class_init, (GClassFinalizeFunc) NULL, NULL, sizeof (PngFileFormatProperties), 0, (GInstanceInitFunc) png_file_format_properties_instance_init, NULL };
+		GType png_file_format_properties_type_id;
+		png_file_format_properties_type_id = g_type_register_static (TYPE_PHOTO_FILE_FORMAT_PROPERTIES, "PngFileFormatProperties", &g_define_type_info, 0);
+		g_once_init_leave (&png_file_format_properties_type_id__volatile, png_file_format_properties_type_id);
+	}
+	return png_file_format_properties_type_id__volatile;
+}
+
+
+PngSniffer* png_sniffer_construct (GType object_type, GFile* file, PhotoFileSnifferOptions options) {
+	PngSniffer* self = NULL;
+	GFile* _tmp0_ = NULL;
+	PhotoFileSnifferOptions _tmp1_ = 0;
+#line 53 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (G_IS_FILE (file), NULL);
+#line 54 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = file;
+#line 54 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = options;
+#line 54 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = (PngSniffer*) gdk_sniffer_construct (object_type, _tmp0_, _tmp1_);
+#line 53 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return self;
+#line 969 "PngSupport.c"
+}
+
+
+PngSniffer* png_sniffer_new (GFile* file, PhotoFileSnifferOptions options) {
+#line 53 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return png_sniffer_construct (TYPE_PNG_SNIFFER, file, options);
+#line 976 "PngSupport.c"
+}
+
+
+static gboolean png_sniffer_is_png_file (GFile* file, GError** error) {
+	gboolean result = FALSE;
+	GFileInputStream* instream = NULL;
+	GFile* _tmp0_ = NULL;
+	GFileInputStream* _tmp1_ = NULL;
+	guint8* file_lead_sequence = NULL;
+	guint8* _tmp2_ = NULL;
+	gint file_lead_sequence_length1 = 0;
+	gint _file_lead_sequence_size_ = 0;
+	GFileInputStream* _tmp3_ = NULL;
+	guint8* _tmp4_ = NULL;
+	gint _tmp4__length1 = 0;
+	GError * _inner_error_ = NULL;
+#line 57 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (G_IS_FILE (file), FALSE);
+#line 58 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = file;
+#line 58 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = g_file_read (_tmp0_, NULL, &_inner_error_);
+#line 58 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	instream = _tmp1_;
+#line 58 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (G_UNLIKELY (_inner_error_ != NULL)) {
+#line 58 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		g_propagate_error (error, _inner_error_);
+#line 58 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		return FALSE;
+#line 1007 "PngSupport.c"
+	}
+#line 60 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = g_new0 (guint8, G_N_ELEMENTS (PNG_SNIFFER_MAGIC_SEQUENCE));
+#line 60 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	file_lead_sequence = _tmp2_;
+#line 60 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	file_lead_sequence_length1 = G_N_ELEMENTS (PNG_SNIFFER_MAGIC_SEQUENCE);
+#line 60 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_file_lead_sequence_size_ = file_lead_sequence_length1;
+#line 62 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp3_ = instream;
+#line 62 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp4_ = file_lead_sequence;
+#line 62 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp4__length1 = file_lead_sequence_length1;
+#line 62 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_input_stream_read (G_TYPE_CHECK_INSTANCE_CAST (_tmp3_, G_TYPE_INPUT_STREAM, GInputStream), _tmp4_, (gsize) _tmp4__length1, NULL, &_inner_error_);
+#line 62 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (G_UNLIKELY (_inner_error_ != NULL)) {
+#line 62 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		g_propagate_error (error, _inner_error_);
+#line 62 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		file_lead_sequence = (g_free (file_lead_sequence), NULL);
+#line 62 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_g_object_unref0 (instream);
+#line 62 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		return FALSE;
+#line 1035 "PngSupport.c"
+	}
+	{
+		gint i = 0;
+#line 64 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		i = 0;
+#line 1041 "PngSupport.c"
+		{
+			gboolean _tmp5_ = FALSE;
+#line 64 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			_tmp5_ = TRUE;
+#line 64 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			while (TRUE) {
+#line 1048 "PngSupport.c"
+				gint _tmp7_ = 0;
+				guint8* _tmp8_ = NULL;
+				gint _tmp8__length1 = 0;
+				gint _tmp9_ = 0;
+				guint8 _tmp10_ = 0U;
+				gint _tmp11_ = 0;
+				guint8 _tmp12_ = 0U;
+#line 64 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				if (!_tmp5_) {
+#line 1058 "PngSupport.c"
+					gint _tmp6_ = 0;
+#line 64 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+					_tmp6_ = i;
+#line 64 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+					i = _tmp6_ + 1;
+#line 1064 "PngSupport.c"
+				}
+#line 64 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				_tmp5_ = FALSE;
+#line 64 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				_tmp7_ = i;
+#line 64 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				if (!(_tmp7_ < G_N_ELEMENTS (PNG_SNIFFER_MAGIC_SEQUENCE))) {
+#line 64 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+					break;
+#line 1074 "PngSupport.c"
+				}
+#line 65 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				_tmp8_ = file_lead_sequence;
+#line 65 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				_tmp8__length1 = file_lead_sequence_length1;
+#line 65 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				_tmp9_ = i;
+#line 65 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				_tmp10_ = _tmp8_[_tmp9_];
+#line 65 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				_tmp11_ = i;
+#line 65 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				_tmp12_ = PNG_SNIFFER_MAGIC_SEQUENCE[_tmp11_];
+#line 65 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+				if (_tmp10_ != _tmp12_) {
+#line 66 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+					result = FALSE;
+#line 66 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+					file_lead_sequence = (g_free (file_lead_sequence), NULL);
+#line 66 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+					_g_object_unref0 (instream);
+#line 66 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+					return result;
+#line 1098 "PngSupport.c"
+				}
+			}
+		}
+	}
+#line 69 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = TRUE;
+#line 69 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	file_lead_sequence = (g_free (file_lead_sequence), NULL);
+#line 69 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_g_object_unref0 (instream);
+#line 69 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1111 "PngSupport.c"
+}
+
+
+static gpointer _detected_photo_information_ref0 (gpointer self) {
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return self ? detected_photo_information_ref (self) : NULL;
+#line 1118 "PngSupport.c"
+}
+
+
+static DetectedPhotoInformation* png_sniffer_real_sniff (PhotoFileSniffer* base, gboolean* is_corrupted, GError** error) {
+	PngSniffer * self;
+	gboolean _vala_is_corrupted = FALSE;
+	DetectedPhotoInformation* result = NULL;
+	gboolean _tmp0_ = FALSE;
+	GFile* _tmp1_ = NULL;
+	gboolean _tmp2_ = FALSE;
+	DetectedPhotoInformation* detected = NULL;
+	gboolean _tmp3_ = FALSE;
+	DetectedPhotoInformation* _tmp4_ = NULL;
+	DetectedPhotoInformation* _tmp5_ = NULL;
+	DetectedPhotoInformation* _tmp6_ = NULL;
+	DetectedPhotoInformation* _tmp7_ = NULL;
+	PhotoFileFormat _tmp8_ = 0;
+	DetectedPhotoInformation* _tmp10_ = NULL;
+	GError * _inner_error_ = NULL;
+#line 72 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_SNIFFER, PngSniffer);
+#line 74 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_vala_is_corrupted = FALSE;
+#line 76 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = G_TYPE_CHECK_INSTANCE_CAST (self, TYPE_PHOTO_FILE_SNIFFER, PhotoFileSniffer)->file;
+#line 76 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = png_sniffer_is_png_file (_tmp1_, &_inner_error_);
+#line 76 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = _tmp2_;
+#line 76 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (G_UNLIKELY (_inner_error_ != NULL)) {
+#line 76 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		g_propagate_error (error, _inner_error_);
+#line 76 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		return NULL;
+#line 1154 "PngSupport.c"
+	}
+#line 76 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (!_tmp0_) {
+#line 77 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		result = NULL;
+#line 77 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		if (is_corrupted) {
+#line 77 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			*is_corrupted = _vala_is_corrupted;
+#line 1164 "PngSupport.c"
+		}
+#line 77 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		return result;
+#line 1168 "PngSupport.c"
+	}
+#line 79 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp4_ = PHOTO_FILE_SNIFFER_CLASS (png_sniffer_parent_class)->sniff (G_TYPE_CHECK_INSTANCE_CAST (G_TYPE_CHECK_INSTANCE_CAST (self, TYPE_GDK_SNIFFER, GdkSniffer), TYPE_PHOTO_FILE_SNIFFER, PhotoFileSniffer), &_tmp3_, &_inner_error_);
+#line 79 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_vala_is_corrupted = _tmp3_;
+#line 79 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	detected = _tmp4_;
+#line 79 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (G_UNLIKELY (_inner_error_ != NULL)) {
+#line 79 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		g_propagate_error (error, _inner_error_);
+#line 79 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		return NULL;
+#line 1182 "PngSupport.c"
+	}
+#line 80 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp5_ = detected;
+#line 80 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (_tmp5_ == NULL) {
+#line 81 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		result = NULL;
+#line 81 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_detected_photo_information_unref0 (detected);
+#line 81 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		if (is_corrupted) {
+#line 81 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			*is_corrupted = _vala_is_corrupted;
+#line 1196 "PngSupport.c"
+		}
+#line 81 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		return result;
+#line 1200 "PngSupport.c"
+	}
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp7_ = detected;
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp8_ = _tmp7_->file_format;
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (_tmp8_ == PHOTO_FILE_FORMAT_PNG) {
+#line 1208 "PngSupport.c"
+		DetectedPhotoInformation* _tmp9_ = NULL;
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp9_ = detected;
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp6_ = _tmp9_;
+#line 1214 "PngSupport.c"
+	} else {
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp6_ = NULL;
+#line 1218 "PngSupport.c"
+	}
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp10_ = _detected_photo_information_ref0 (_tmp6_);
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = _tmp10_;
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_detected_photo_information_unref0 (detected);
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (is_corrupted) {
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		*is_corrupted = _vala_is_corrupted;
+#line 1230 "PngSupport.c"
+	}
+#line 83 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1234 "PngSupport.c"
+}
+
+
+static void png_sniffer_class_init (PngSnifferClass * klass) {
+#line 50 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_sniffer_parent_class = g_type_class_peek_parent (klass);
+#line 50 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileSnifferClass *) klass)->sniff = png_sniffer_real_sniff;
+#line 1243 "PngSupport.c"
+}
+
+
+static void png_sniffer_instance_init (PngSniffer * self) {
+}
+
+
+GType png_sniffer_get_type (void) {
+	static volatile gsize png_sniffer_type_id__volatile = 0;
+	if (g_once_init_enter (&png_sniffer_type_id__volatile)) {
+		static const GTypeInfo g_define_type_info = { sizeof (PngSnifferClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) png_sniffer_class_init, (GClassFinalizeFunc) NULL, NULL, sizeof (PngSniffer), 0, (GInstanceInitFunc) png_sniffer_instance_init, NULL };
+		GType png_sniffer_type_id;
+		png_sniffer_type_id = g_type_register_static (TYPE_GDK_SNIFFER, "PngSniffer", &g_define_type_info, 0);
+		g_once_init_leave (&png_sniffer_type_id__volatile, png_sniffer_type_id);
+	}
+	return png_sniffer_type_id__volatile;
+}
+
+
+PngReader* png_reader_construct (GType object_type, const gchar* filepath) {
+	PngReader* self = NULL;
+	const gchar* _tmp0_ = NULL;
+#line 88 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (filepath != NULL, NULL);
+#line 89 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = filepath;
+#line 89 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = (PngReader*) gdk_reader_construct (object_type, _tmp0_, PHOTO_FILE_FORMAT_PNG);
+#line 88 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return self;
+#line 1274 "PngSupport.c"
+}
+
+
+PngReader* png_reader_new (const gchar* filepath) {
+#line 88 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return png_reader_construct (TYPE_PNG_READER, filepath);
+#line 1281 "PngSupport.c"
+}
+
+
+static GdkPixbuf* png_reader_real_scaled_read (PhotoFileReader* base, Dimensions* full, Dimensions* scaled, GError** error) {
+	PngReader * self;
+	GdkPixbuf* result = NULL;
+	GdkPixbuf* _result_ = NULL;
+	gboolean _tmp0_ = FALSE;
+	gboolean _tmp1_ = FALSE;
+	Dimensions _tmp2_ = {0};
+	gint _tmp3_ = 0;
+	GError * _inner_error_ = NULL;
+#line 92 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_READER, PngReader);
+#line 92 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (full != NULL, NULL);
+#line 92 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (scaled != NULL, NULL);
+#line 93 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_result_ = NULL;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = *full;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp3_ = _tmp2_.width;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (_tmp3_ > 9999) {
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp1_ = TRUE;
+#line 1310 "PngSupport.c"
+	} else {
+		Dimensions _tmp4_ = {0};
+		gint _tmp5_ = 0;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp4_ = *full;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp5_ = _tmp4_.height;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp1_ = _tmp5_ > 9999;
+#line 1320 "PngSupport.c"
+	}
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (_tmp1_) {
+#line 1324 "PngSupport.c"
+		gboolean _tmp6_ = FALSE;
+		Dimensions _tmp7_ = {0};
+		gint _tmp8_ = 0;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp7_ = *scaled;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp8_ = _tmp7_.width;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		if (_tmp8_ < 100) {
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			_tmp6_ = TRUE;
+#line 1336 "PngSupport.c"
+		} else {
+			Dimensions _tmp9_ = {0};
+			gint _tmp10_ = 0;
+#line 103 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			_tmp9_ = *scaled;
+#line 103 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			_tmp10_ = _tmp9_.height;
+#line 103 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			_tmp6_ = _tmp10_ < 100;
+#line 1346 "PngSupport.c"
+		}
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp0_ = _tmp6_;
+#line 1350 "PngSupport.c"
+	} else {
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp0_ = FALSE;
+#line 1354 "PngSupport.c"
+	}
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (_tmp0_) {
+#line 1358 "PngSupport.c"
+		Dimensions prefetch_dimensions = {0};
+		Dimensions _tmp11_ = {0};
+		GdkPixbuf* _tmp12_ = NULL;
+		gchar* _tmp13_ = NULL;
+		gchar* _tmp14_ = NULL;
+		Dimensions _tmp15_ = {0};
+		gint _tmp16_ = 0;
+		Dimensions _tmp17_ = {0};
+		gint _tmp18_ = 0;
+		GdkPixbuf* _tmp19_ = NULL;
+		GdkPixbuf* _tmp20_ = NULL;
+		GdkPixbuf* _tmp21_ = NULL;
+		GdkPixbuf* _tmp22_ = NULL;
+		Dimensions _tmp23_ = {0};
+		gint _tmp24_ = 0;
+		Dimensions _tmp25_ = {0};
+		gint _tmp26_ = 0;
+		GdkPixbuf* _tmp27_ = NULL;
+#line 104 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		dimensions_get_scaled_by_constraint (full, 1000, SCALE_CONSTRAINT_DIMENSIONS, &_tmp11_);
+#line 104 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		prefetch_dimensions = _tmp11_;
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp13_ = photo_file_adapter_get_filepath (G_TYPE_CHECK_INSTANCE_CAST (self, TYPE_PHOTO_FILE_ADAPTER, PhotoFileAdapter));
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp14_ = _tmp13_;
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp15_ = prefetch_dimensions;
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp16_ = _tmp15_.width;
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp17_ = prefetch_dimensions;
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp18_ = _tmp17_.height;
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp19_ = gdk_pixbuf_new_from_file_at_scale (_tmp14_, _tmp16_, _tmp18_, FALSE, &_inner_error_);
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp20_ = _tmp19_;
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_g_free0 (_tmp14_);
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp12_ = _tmp20_;
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		if (G_UNLIKELY (_inner_error_ != NULL)) {
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			g_propagate_error (error, _inner_error_);
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			_g_object_unref0 (_result_);
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			return NULL;
+#line 1409 "PngSupport.c"
+		}
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp21_ = _tmp12_;
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp12_ = NULL;
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_g_object_unref0 (_result_);
+#line 107 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_result_ = _tmp21_;
+#line 110 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp22_ = _result_;
+#line 110 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp23_ = *scaled;
+#line 110 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp24_ = _tmp23_.width;
+#line 110 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp25_ = *scaled;
+#line 110 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp26_ = _tmp25_.height;
+#line 110 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp27_ = gdk_pixbuf_scale_simple (_tmp22_, _tmp24_, _tmp26_, GDK_INTERP_HYPER);
+#line 110 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_g_object_unref0 (_result_);
+#line 110 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_result_ = _tmp27_;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_g_object_unref0 (_tmp12_);
+#line 1437 "PngSupport.c"
+	} else {
+		GdkPixbuf* _tmp28_ = NULL;
+		gchar* _tmp29_ = NULL;
+		gchar* _tmp30_ = NULL;
+		Dimensions _tmp31_ = {0};
+		gint _tmp32_ = 0;
+		Dimensions _tmp33_ = {0};
+		gint _tmp34_ = 0;
+		GdkPixbuf* _tmp35_ = NULL;
+		GdkPixbuf* _tmp36_ = NULL;
+		GdkPixbuf* _tmp37_ = NULL;
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp29_ = photo_file_adapter_get_filepath (G_TYPE_CHECK_INSTANCE_CAST (self, TYPE_PHOTO_FILE_ADAPTER, PhotoFileAdapter));
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp30_ = _tmp29_;
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp31_ = *scaled;
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp32_ = _tmp31_.width;
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp33_ = *scaled;
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp34_ = _tmp33_.height;
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp35_ = gdk_pixbuf_new_from_file_at_scale (_tmp30_, _tmp32_, _tmp34_, FALSE, &_inner_error_);
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp36_ = _tmp35_;
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_g_free0 (_tmp30_);
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp28_ = _tmp36_;
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		if (G_UNLIKELY (_inner_error_ != NULL)) {
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			g_propagate_error (error, _inner_error_);
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			_g_object_unref0 (_result_);
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+			return NULL;
+#line 1477 "PngSupport.c"
+		}
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp37_ = _tmp28_;
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_tmp28_ = NULL;
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_g_object_unref0 (_result_);
+#line 112 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_result_ = _tmp37_;
+#line 102 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		_g_object_unref0 (_tmp28_);
+#line 1489 "PngSupport.c"
+	}
+#line 116 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = _result_;
+#line 116 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1495 "PngSupport.c"
+}
+
+
+static void png_reader_class_init (PngReaderClass * klass) {
+#line 87 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_reader_parent_class = g_type_class_peek_parent (klass);
+#line 87 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileReaderClass *) klass)->scaled_read = png_reader_real_scaled_read;
+#line 1504 "PngSupport.c"
+}
+
+
+static void png_reader_instance_init (PngReader * self) {
+}
+
+
+GType png_reader_get_type (void) {
+	static volatile gsize png_reader_type_id__volatile = 0;
+	if (g_once_init_enter (&png_reader_type_id__volatile)) {
+		static const GTypeInfo g_define_type_info = { sizeof (PngReaderClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) png_reader_class_init, (GClassFinalizeFunc) NULL, NULL, sizeof (PngReader), 0, (GInstanceInitFunc) png_reader_instance_init, NULL };
+		GType png_reader_type_id;
+		png_reader_type_id = g_type_register_static (TYPE_GDK_READER, "PngReader", &g_define_type_info, 0);
+		g_once_init_leave (&png_reader_type_id__volatile, png_reader_type_id);
+	}
+	return png_reader_type_id__volatile;
+}
+
+
+PngWriter* png_writer_construct (GType object_type, const gchar* filepath) {
+	PngWriter* self = NULL;
+	const gchar* _tmp0_ = NULL;
+#line 121 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (filepath != NULL, NULL);
+#line 122 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = filepath;
+#line 122 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = (PngWriter*) photo_file_writer_construct (object_type, _tmp0_, PHOTO_FILE_FORMAT_PNG);
+#line 121 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return self;
+#line 1535 "PngSupport.c"
+}
+
+
+PngWriter* png_writer_new (const gchar* filepath) {
+#line 121 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return png_writer_construct (TYPE_PNG_WRITER, filepath);
+#line 1542 "PngSupport.c"
+}
+
+
+static void png_writer_real_write (PhotoFileWriter* base, GdkPixbuf* pixbuf, JpegQuality quality, GError** error) {
+	PngWriter * self;
+	GdkPixbuf* _tmp0_ = NULL;
+	gchar* _tmp1_ = NULL;
+	gchar* _tmp2_ = NULL;
+	GError * _inner_error_ = NULL;
+#line 125 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_WRITER, PngWriter);
+#line 125 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
+#line 126 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = pixbuf;
+#line 126 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = photo_file_adapter_get_filepath (G_TYPE_CHECK_INSTANCE_CAST (self, TYPE_PHOTO_FILE_ADAPTER, PhotoFileAdapter));
+#line 126 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = _tmp1_;
+#line 126 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	gdk_pixbuf_save (_tmp0_, _tmp2_, "png", &_inner_error_, "compression", "9", NULL, NULL);
+#line 126 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_g_free0 (_tmp2_);
+#line 126 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (G_UNLIKELY (_inner_error_ != NULL)) {
+#line 126 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		g_propagate_error (error, _inner_error_);
+#line 126 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		return;
+#line 1572 "PngSupport.c"
+	}
+}
+
+
+static void png_writer_class_init (PngWriterClass * klass) {
+#line 120 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_writer_parent_class = g_type_class_peek_parent (klass);
+#line 120 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileWriterClass *) klass)->write = png_writer_real_write;
+#line 1582 "PngSupport.c"
+}
+
+
+static void png_writer_instance_init (PngWriter * self) {
+}
+
+
+GType png_writer_get_type (void) {
+	static volatile gsize png_writer_type_id__volatile = 0;
+	if (g_once_init_enter (&png_writer_type_id__volatile)) {
+		static const GTypeInfo g_define_type_info = { sizeof (PngWriterClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) png_writer_class_init, (GClassFinalizeFunc) NULL, NULL, sizeof (PngWriter), 0, (GInstanceInitFunc) png_writer_instance_init, NULL };
+		GType png_writer_type_id;
+		png_writer_type_id = g_type_register_static (TYPE_PHOTO_FILE_WRITER, "PngWriter", &g_define_type_info, 0);
+		g_once_init_leave (&png_writer_type_id__volatile, png_writer_type_id);
+	}
+	return png_writer_type_id__volatile;
+}
+
+
+PngMetadataWriter* png_metadata_writer_construct (GType object_type, const gchar* filepath) {
+	PngMetadataWriter* self = NULL;
+	const gchar* _tmp0_ = NULL;
+#line 131 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (filepath != NULL, NULL);
+#line 132 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = filepath;
+#line 132 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = (PngMetadataWriter*) photo_file_metadata_writer_construct (object_type, _tmp0_, PHOTO_FILE_FORMAT_PNG);
+#line 131 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return self;
+#line 1613 "PngSupport.c"
+}
+
+
+PngMetadataWriter* png_metadata_writer_new (const gchar* filepath) {
+#line 131 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return png_metadata_writer_construct (TYPE_PNG_METADATA_WRITER, filepath);
+#line 1620 "PngSupport.c"
+}
+
+
+static void png_metadata_writer_real_write_metadata (PhotoFileMetadataWriter* base, PhotoMetadata* metadata, GError** error) {
+	PngMetadataWriter * self;
+	PhotoMetadata* _tmp0_ = NULL;
+	GFile* _tmp1_ = NULL;
+	GFile* _tmp2_ = NULL;
+	GError * _inner_error_ = NULL;
+#line 135 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_METADATA_WRITER, PngMetadataWriter);
+#line 135 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_if_fail (IS_PHOTO_METADATA (metadata));
+#line 136 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = metadata;
+#line 136 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = photo_file_adapter_get_file (G_TYPE_CHECK_INSTANCE_CAST (self, TYPE_PHOTO_FILE_ADAPTER, PhotoFileAdapter));
+#line 136 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = _tmp1_;
+#line 136 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	photo_metadata_write_to_file (_tmp0_, _tmp2_, &_inner_error_);
+#line 136 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_g_object_unref0 (_tmp2_);
+#line 136 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	if (G_UNLIKELY (_inner_error_ != NULL)) {
+#line 136 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		g_propagate_error (error, _inner_error_);
+#line 136 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+		return;
+#line 1650 "PngSupport.c"
+	}
+}
+
+
+static void png_metadata_writer_class_init (PngMetadataWriterClass * klass) {
+#line 130 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_metadata_writer_parent_class = g_type_class_peek_parent (klass);
+#line 130 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileMetadataWriterClass *) klass)->write_metadata = png_metadata_writer_real_write_metadata;
+#line 1660 "PngSupport.c"
+}
+
+
+static void png_metadata_writer_instance_init (PngMetadataWriter * self) {
+}
+
+
+GType png_metadata_writer_get_type (void) {
+	static volatile gsize png_metadata_writer_type_id__volatile = 0;
+	if (g_once_init_enter (&png_metadata_writer_type_id__volatile)) {
+		static const GTypeInfo g_define_type_info = { sizeof (PngMetadataWriterClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) png_metadata_writer_class_init, (GClassFinalizeFunc) NULL, NULL, sizeof (PngMetadataWriter), 0, (GInstanceInitFunc) png_metadata_writer_instance_init, NULL };
+		GType png_metadata_writer_type_id;
+		png_metadata_writer_type_id = g_type_register_static (TYPE_PHOTO_FILE_METADATA_WRITER, "PngMetadataWriter", &g_define_type_info, 0);
+		g_once_init_leave (&png_metadata_writer_type_id__volatile, png_metadata_writer_type_id);
+	}
+	return png_metadata_writer_type_id__volatile;
+}
+
+
+void png_file_format_driver_init (void) {
+	PngFileFormatDriver* _tmp0_ = NULL;
+#line 144 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = png_file_format_driver_new ();
+#line 144 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_photo_file_format_driver_unref0 (png_file_format_driver_instance);
+#line 144 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_file_format_driver_instance = _tmp0_;
+#line 145 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_file_format_properties_init ();
+#line 1690 "PngSupport.c"
+}
+
+
+static gpointer _photo_file_format_driver_ref0 (gpointer self) {
+#line 149 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return self ? photo_file_format_driver_ref (self) : NULL;
+#line 1697 "PngSupport.c"
+}
+
+
+PngFileFormatDriver* png_file_format_driver_get_instance (void) {
+	PngFileFormatDriver* result = NULL;
+	PngFileFormatDriver* _tmp0_ = NULL;
+	PngFileFormatDriver* _tmp1_ = NULL;
+#line 149 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = png_file_format_driver_instance;
+#line 149 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = _photo_file_format_driver_ref0 (_tmp0_);
+#line 149 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = _tmp1_;
+#line 149 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1713 "PngSupport.c"
+}
+
+
+static PhotoFileFormatProperties* png_file_format_driver_real_get_properties (PhotoFileFormatDriver* base) {
+	PngFileFormatDriver * self;
+	PhotoFileFormatProperties* result = NULL;
+	PngFileFormatProperties* _tmp0_ = NULL;
+#line 152 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriver);
+#line 153 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = png_file_format_properties_get_instance ();
+#line 153 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = G_TYPE_CHECK_INSTANCE_CAST (_tmp0_, TYPE_PHOTO_FILE_FORMAT_PROPERTIES, PhotoFileFormatProperties);
+#line 153 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1729 "PngSupport.c"
+}
+
+
+static PhotoFileReader* png_file_format_driver_real_create_reader (PhotoFileFormatDriver* base, const gchar* filepath) {
+	PngFileFormatDriver * self;
+	PhotoFileReader* result = NULL;
+	const gchar* _tmp0_ = NULL;
+	PngReader* _tmp1_ = NULL;
+#line 156 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriver);
+#line 156 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (filepath != NULL, NULL);
+#line 157 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = filepath;
+#line 157 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = png_reader_new (_tmp0_);
+#line 157 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = G_TYPE_CHECK_INSTANCE_CAST (_tmp1_, TYPE_PHOTO_FILE_READER, PhotoFileReader);
+#line 157 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1750 "PngSupport.c"
+}
+
+
+static gboolean png_file_format_driver_real_can_write_image (PhotoFileFormatDriver* base) {
+	PngFileFormatDriver * self;
+	gboolean result = FALSE;
+#line 160 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriver);
+#line 161 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = TRUE;
+#line 161 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1763 "PngSupport.c"
+}
+
+
+static gboolean png_file_format_driver_real_can_write_metadata (PhotoFileFormatDriver* base) {
+	PngFileFormatDriver * self;
+	gboolean result = FALSE;
+#line 164 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriver);
+#line 165 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = TRUE;
+#line 165 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1776 "PngSupport.c"
+}
+
+
+static PhotoFileWriter* png_file_format_driver_real_create_writer (PhotoFileFormatDriver* base, const gchar* filepath) {
+	PngFileFormatDriver * self;
+	PhotoFileWriter* result = NULL;
+	const gchar* _tmp0_ = NULL;
+	PngWriter* _tmp1_ = NULL;
+#line 168 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriver);
+#line 168 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (filepath != NULL, NULL);
+#line 169 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = filepath;
+#line 169 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = png_writer_new (_tmp0_);
+#line 169 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = G_TYPE_CHECK_INSTANCE_CAST (_tmp1_, TYPE_PHOTO_FILE_WRITER, PhotoFileWriter);
+#line 169 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1797 "PngSupport.c"
+}
+
+
+static PhotoFileMetadataWriter* png_file_format_driver_real_create_metadata_writer (PhotoFileFormatDriver* base, const gchar* filepath) {
+	PngFileFormatDriver * self;
+	PhotoFileMetadataWriter* result = NULL;
+	const gchar* _tmp0_ = NULL;
+	PngMetadataWriter* _tmp1_ = NULL;
+#line 172 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriver);
+#line 172 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (filepath != NULL, NULL);
+#line 173 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = filepath;
+#line 173 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = png_metadata_writer_new (_tmp0_);
+#line 173 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = G_TYPE_CHECK_INSTANCE_CAST (_tmp1_, TYPE_PHOTO_FILE_METADATA_WRITER, PhotoFileMetadataWriter);
+#line 173 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1818 "PngSupport.c"
+}
+
+
+static PhotoFileSniffer* png_file_format_driver_real_create_sniffer (PhotoFileFormatDriver* base, GFile* file, PhotoFileSnifferOptions options) {
+	PngFileFormatDriver * self;
+	PhotoFileSniffer* result = NULL;
+	GFile* _tmp0_ = NULL;
+	PhotoFileSnifferOptions _tmp1_ = 0;
+	PngSniffer* _tmp2_ = NULL;
+#line 176 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriver);
+#line 176 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	g_return_val_if_fail (G_IS_FILE (file), NULL);
+#line 177 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = file;
+#line 177 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp1_ = options;
+#line 177 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp2_ = png_sniffer_new (_tmp0_, _tmp1_);
+#line 177 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = G_TYPE_CHECK_INSTANCE_CAST (_tmp2_, TYPE_PHOTO_FILE_SNIFFER, PhotoFileSniffer);
+#line 177 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1842 "PngSupport.c"
+}
+
+
+static PhotoMetadata* png_file_format_driver_real_create_metadata (PhotoFileFormatDriver* base) {
+	PngFileFormatDriver * self;
+	PhotoMetadata* result = NULL;
+	PhotoMetadata* _tmp0_ = NULL;
+#line 180 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (base, TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriver);
+#line 181 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	_tmp0_ = photo_metadata_new ();
+#line 181 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	result = _tmp0_;
+#line 181 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return result;
+#line 1858 "PngSupport.c"
+}
+
+
+PngFileFormatDriver* png_file_format_driver_construct (GType object_type) {
+	PngFileFormatDriver* self = NULL;
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = (PngFileFormatDriver*) photo_file_format_driver_construct (object_type);
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return self;
+#line 1868 "PngSupport.c"
+}
+
+
+PngFileFormatDriver* png_file_format_driver_new (void) {
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	return png_file_format_driver_construct (TYPE_PNG_FILE_FORMAT_DRIVER);
+#line 1875 "PngSupport.c"
+}
+
+
+static void png_file_format_driver_class_init (PngFileFormatDriverClass * klass) {
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	png_file_format_driver_parent_class = g_type_class_peek_parent (klass);
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatDriverClass *) klass)->finalize = png_file_format_driver_finalize;
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatDriverClass *) klass)->get_properties = png_file_format_driver_real_get_properties;
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatDriverClass *) klass)->create_reader = png_file_format_driver_real_create_reader;
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatDriverClass *) klass)->can_write_image = png_file_format_driver_real_can_write_image;
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatDriverClass *) klass)->can_write_metadata = png_file_format_driver_real_can_write_metadata;
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatDriverClass *) klass)->create_writer = png_file_format_driver_real_create_writer;
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatDriverClass *) klass)->create_metadata_writer = png_file_format_driver_real_create_metadata_writer;
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatDriverClass *) klass)->create_sniffer = png_file_format_driver_real_create_sniffer;
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	((PhotoFileFormatDriverClass *) klass)->create_metadata = png_file_format_driver_real_create_metadata;
+#line 1900 "PngSupport.c"
+}
+
+
+static void png_file_format_driver_instance_init (PngFileFormatDriver * self) {
+}
+
+
+static void png_file_format_driver_finalize (PhotoFileFormatDriver* obj) {
+	PngFileFormatDriver * self;
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	self = G_TYPE_CHECK_INSTANCE_CAST (obj, TYPE_PNG_FILE_FORMAT_DRIVER, PngFileFormatDriver);
+#line 140 "/home/jens/Source/shotwell/src/photos/PngSupport.vala"
+	PHOTO_FILE_FORMAT_DRIVER_CLASS (png_file_format_driver_parent_class)->finalize (obj);
+#line 1914 "PngSupport.c"
+}
+
+
+GType png_file_format_driver_get_type (void) {
+	static volatile gsize png_file_format_driver_type_id__volatile = 0;
+	if (g_once_init_enter (&png_file_format_driver_type_id__volatile)) {
+		static const GTypeInfo g_define_type_info = { sizeof (PngFileFormatDriverClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) png_file_format_driver_class_init, (GClassFinalizeFunc) NULL, NULL, sizeof (PngFileFormatDriver), 0, (GInstanceInitFunc) png_file_format_driver_instance_init, NULL };
+		GType png_file_format_driver_type_id;
+		png_file_format_driver_type_id = g_type_register_static (TYPE_PHOTO_FILE_FORMAT_DRIVER, "PngFileFormatDriver", &g_define_type_info, 0);
+		g_once_init_leave (&png_file_format_driver_type_id__volatile, png_file_format_driver_type_id);
+	}
+	return png_file_format_driver_type_id__volatile;
+}
+
+
+
-- 
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