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Move thumbnails into their own source file

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And clean up identifiers.
This commit is contained in:
Přemysl Eric Janouch
2021-12-28 19:58:14 +01:00
parent c1af556751
commit bf47782f0a
7 changed files with 605 additions and 545 deletions
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51
fiv-io.h
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@@ -31,6 +31,9 @@ FivIoProfile fiv_io_profile_new(const void *data, size_t len);
FivIoProfile fiv_io_profile_new_sRGB(void);
void fiv_io_profile_free(FivIoProfile self);
// From libwebp, verified to exactly match [x * a / 255].
#define PREMULTIPLY8(a, x) (((uint32_t) (x) * (uint32_t) (a) * 32897U) >> 23)
// --- Loading -----------------------------------------------------------------
extern const char *fiv_io_supported_media_types[];
@@ -69,9 +72,6 @@ extern cairo_user_data_key_t fiv_io_key_page_next;
/// There is no wrap-around. This is a weak pointer.
extern cairo_user_data_key_t fiv_io_key_page_previous;
/// If non-NULL, indicates a thumbnail of insufficient quality.
extern cairo_user_data_key_t fiv_io_key_thumbnail_lq;
cairo_surface_t *fiv_io_open(
const gchar *path, FivIoProfile profile, gboolean enhance, GError **error);
cairo_surface_t *fiv_io_open_from_data(const char *data, size_t len,
@@ -113,48 +113,3 @@ FivIoOrientation fiv_io_exif_orientation(const guint8 *exif, gsize len);
/// Save metadata attached by this module in Exiv2 format.
gboolean fiv_io_save_metadata(
cairo_surface_t *page, const gchar *path, GError **error);
// --- Thumbnails --------------------------------------------------------------
// And this is how you avoid glib-mkenums.
typedef enum _FivIoThumbnailSize {
#define FIV_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) FIV_IO_THUMBNAIL_SIZE_ ## name,
FIV_IO_THUMBNAIL_SIZES(XX)
#undef XX
FIV_IO_THUMBNAIL_SIZE_COUNT,
FIV_IO_THUMBNAIL_SIZE_MIN = 0,
FIV_IO_THUMBNAIL_SIZE_MAX = FIV_IO_THUMBNAIL_SIZE_COUNT - 1
} FivIoThumbnailSize;
GType fiv_io_thumbnail_size_get_type(void) G_GNUC_CONST;
#define FIV_TYPE_IO_THUMBNAIL_SIZE (fiv_io_thumbnail_size_get_type())
typedef struct _FivIoThumbnailSizeInfo {
int size; ///< Nominal size in pixels
const char *thumbnail_spec_name; ///< thumbnail-spec directory name
} FivIoThumbnailSizeInfo;
extern FivIoThumbnailSizeInfo
fiv_io_thumbnail_sizes[FIV_IO_THUMBNAIL_SIZE_COUNT];
enum {
FIV_IO_WIDE_THUMBNAIL_COEFFICIENT = 2
};
/// Returns this user's root thumbnail directory.
gchar *fiv_io_get_thumbnail_root(void);
/// Generates wide thumbnails of up to the specified size, saves them in cache.
gboolean fiv_io_produce_thumbnail(
GFile *target, FivIoThumbnailSize size, GError **error);
/// Retrieves a thumbnail of the most appropriate quality and resolution
/// for the target file.
cairo_surface_t *fiv_io_lookup_thumbnail(
GFile *target, FivIoThumbnailSize size);