diff options
Diffstat (limited to 'src/loader/loader.h')
| -rw-r--r-- | src/loader/loader.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/loader/loader.h b/src/loader/loader.h index bfee29d..c2228f5 100644 --- a/src/loader/loader.h +++ b/src/loader/loader.h @@ -23,11 +23,19 @@ G_BEGIN_DECLS +/* Optional progressive-load callback (called from the worker thread with a + * low-res partial texture before the full decode completes). */ +typedef void (*LoaderProgressCb)(GdkTexture *p_partial, gpointer p_data); + /* A loader backend. Compiled in conditionally (meson feature options) and * registered with the loader at link time. */ typedef struct { gboolean (*can_load)(const guint8 *p_head, gsize u_len); GdkTexture *(*load)(GFile *p_file, GCancellable *p_cancel, GError **p_err); + /* Optional: two-phase load (low-res first via p_progress, then full). */ + GdkTexture *(*load_progressive)(GFile *p_file, GCancellable *p_cancel, + LoaderProgressCb p_progress, + gpointer p_progress_data, GError **p_err); } GgazeLoaderBackend; /* Backends register a const instance; the dispatcher (loader.c) iterates @@ -45,6 +53,7 @@ GdkTexture *loader_load(GFile *p_file, GCancellable *p_cancel, GError **p_err); * p_file, so the finish callback can check it against navigator.current * (last-write-wins). */ void loader_load_async(GFile *p_file, GCancellable *p_cancel, + LoaderProgressCb p_progress, gpointer p_progress_data, GAsyncReadyCallback p_cb, gpointer p_data); /* Finish an async load; returns the GdkTexture (transfer full) or NULL. */ |