evas: start work on making the loader module a public API.

Goal is to be able to remove all internal Evas call from inside all
loader module. To do so we are going to open and hold a reference to the
file from outside of the module, read the header, create the image data,
load the data, close that reference.

Once that done, the next step is to let the file remain open as soon as
the filename/key is set and add an API to set an Eina_File directly. This
way edje can maintain the same file open as it use for an edje object,
keeping things in sync and avoid rendering glitch during update.

1 files changed, 5 insertions, 1 deletions

diff --git a/src/lib/evas/include/evas_private.h b/src/lib/evas/include/evas_private.h
index ebfda7f4f7..7c68216f9a 100644
--- a/src/lib/evas/include/evas_private.h
+++ b/src/lib/evas/include/evas_private.h
@@ -33,6 +33,8 @@ typedef struct _Evas_Font_Alias             Evas_Font_Alias;
 typedef struct _Evas_Font_Description       Evas_Font_Description;
 typedef struct _Evas_Data_Node              Evas_Data_Node;
 typedef RGBA_Image_Loadopts                 Evas_Image_Load_Opts;
+typedef Image_Entry_Animated                Evas_Image_Animated;
+typedef Image_Entry_Property                Evas_Image_Property;
 typedef struct _Evas_Func                   Evas_Func;
 typedef struct _Evas_Image_Load_Func        Evas_Image_Load_Func;
 typedef struct _Evas_Image_Save_Func        Evas_Image_Save_Func;
@@ -901,7 +903,9 @@ struct _Evas_Func
 struct _Evas_Image_Load_Func
 {
   Eina_Bool threadable;
-  Eina_Bool (*file_head) (Image_Entry *ie, const char *file, const char *key, int *error);
+  Eina_Bool (*file_head) (Eina_File *f, const char *key,
+                          Evas_Image_Property *prop, Evas_Image_Load_Opts *opts, Evas_Image_Animated *animated,
+                          int *error);
   Eina_Bool (*file_data) (Image_Entry *ie, const char *file, const char *key, int *error);
   double    (*frame_duration) (Image_Entry *ie, const char *file, const int start, const int frame_num);
   Eina_Bool do_region;