80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
//
|
|
// fastiv-io.h: image loaders
|
|
//
|
|
// Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
|
// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
|
// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
//
|
|
|
|
#pragma once
|
|
|
|
#include <cairo.h>
|
|
#include <glib.h>
|
|
#include <gio/gio.h>
|
|
|
|
extern const char *fastiv_io_supported_media_types[];
|
|
|
|
char **fastiv_io_all_supported_media_types(void);
|
|
|
|
// Userdata are typically attached to all Cairo surfaces in an animation.
|
|
|
|
/// GBytes with plain Exif data.
|
|
extern cairo_user_data_key_t fastiv_io_key_exif;
|
|
/// GBytes with plain ICC profile data.
|
|
extern cairo_user_data_key_t fastiv_io_key_icc;
|
|
|
|
/// The next frame in a sequence, as a surface, in a chain, pre-composited.
|
|
/// There is no wrap-around.
|
|
extern cairo_user_data_key_t fastiv_io_key_frame_next;
|
|
/// Frame duration in milliseconds as an intptr_t.
|
|
extern cairo_user_data_key_t fastiv_io_key_frame_duration;
|
|
/// How many times to repeat the animation, or zero for +inf, as a uintptr_t.
|
|
extern cairo_user_data_key_t fastiv_io_key_loops;
|
|
|
|
cairo_surface_t *fastiv_io_open(const gchar *path, GError **error);
|
|
cairo_surface_t *fastiv_io_open_from_data(
|
|
const char *data, size_t len, const gchar *path, GError **error);
|
|
|
|
int fastiv_io_filecmp(GFile *f1, GFile *f2);
|
|
|
|
// --- Thumbnails --------------------------------------------------------------
|
|
|
|
// And this is how you avoid glib-mkenums.
|
|
typedef enum _FastivIoThumbnailSize {
|
|
#define FASTIV_IO_THUMBNAIL_SIZES(XX) \
|
|
XX(SMALL, 128, "normal") \
|
|
XX(NORMAL, 256, "large") \
|
|
XX(LARGE, 512, "x-large") \
|
|
XX(HUGE, 1024, "xx-large")
|
|
#define XX(name, value, dir) FASTIV_IO_THUMBNAIL_SIZE_ ## name,
|
|
FASTIV_IO_THUMBNAIL_SIZES(XX)
|
|
#undef XX
|
|
FASTIV_IO_THUMBNAIL_SIZE_COUNT,
|
|
|
|
FASTIV_IO_THUMBNAIL_SIZE_MIN = 0,
|
|
FASTIV_IO_THUMBNAIL_SIZE_MAX = FASTIV_IO_THUMBNAIL_SIZE_COUNT - 1
|
|
} FastivIoThumbnailSize;
|
|
|
|
GType fastiv_io_thumbnail_size_get_type(void) G_GNUC_CONST;
|
|
#define FASTIV_TYPE_IO_THUMBNAIL_SIZE (fastiv_io_thumbnail_size_get_type())
|
|
|
|
typedef struct _FastivIoThumbnailSizeInfo {
|
|
int size; ///< Nominal size in pixels
|
|
const char *thumbnail_spec_name; ///< thumbnail-spec directory name
|
|
} FastivIoThumbnailSizeInfo;
|
|
|
|
extern FastivIoThumbnailSizeInfo
|
|
fastiv_io_thumbnail_sizes[FASTIV_IO_THUMBNAIL_SIZE_COUNT];
|
|
|
|
cairo_surface_t *fastiv_io_lookup_thumbnail(
|
|
const gchar *target, FastivIoThumbnailSize size);
|