ecore-drm: Add a new API for keymap cache

Summary:
Originally, each keyboard devices could have their own keymap.
The one keyboard's keymap could different with others.
But for this, Ecore_Drm compile a new keymap when a keyboard is connected.
But this is a burden for some people who doesn't manage keymap for each keyboard.
They want to maintain only one keymap for system.
So, I added cached context/keymap and just ref/unref for each keyboard device.
People who want to different keymap for each keyboard just do not set cached
context/keymap. Then Ecore_Drm maintain keymaps about each keyboard devices.

Test Plan:
Connect a keyboard device and watch flow of ioctl.
Originally Ecore_Drm opened xkb data and compile keymap,
but after patch, that ioctl is disppeared.

@feature

Reviewers: raster, devilhorns, ManMower

Reviewed By: devilhorns, ManMower

Subscribers: cedric, input.hacker, ohduna, jpeg

Differential Revision: https://phab.enlightenment.org/D3503

1 files changed, 27 insertions, 0 deletions

diff --git a/src/lib/ecore_drm/Ecore_Drm.h b/src/lib/ecore_drm/Ecore_Drm.h
index 1f110efd28..5c50f1022d 100644
--- a/src/lib/ecore_drm/Ecore_Drm.h
+++ b/src/lib/ecore_drm/Ecore_Drm.h
@@ -6,6 +6,7 @@
 # include <drm_fourcc.h>
 # include <Ecore.h>
 # include <Eeze.h>
+# include <xkbcommon/xkbcommon.h>
 
 # ifdef EAPI
 #  undef EAPI
@@ -382,6 +383,32 @@ EAPI Eina_Bool ecore_drm_device_software_setup(Ecore_Drm_Device *dev);
 EAPI Eina_Bool ecore_drm_device_pointer_left_handed_set(Ecore_Drm_Device *dev, Eina_Bool left_handed);
 
 /**
+ * Setup a cached context to use same context for each devices
+ *
+ * This function will setup a cached context to use same context for each devices
+ * This function will be called before initialize Ecore_Drm.
+ *
+ * @param ctx struct xkb_context used in libxkbcommon
+ *
+ * @ingroup Ecore_Drm_Device_Group
+ * @since 1.17
+ */
+EAPI void ecore_drm_device_keyboard_cached_context_set(struct xkb_context *ctx);
+
+/**
+ * Setup a cached keymap to use same keymap for each devices
+ *
+ * This function will setup a cached keymap to use same keymap for each devices
+ * This function will be called before initialize Ecore_Drm.
+ *
+ * @param map struct xkb_keymap used in libxkbcommon
+ *
+ * @ingroup Ecore_Drm_Device_Group
+ * @since 1.17
+ */
+EAPI void ecore_drm_device_keyboard_cached_keymap_set(struct xkb_keymap *map);
+
+/**
  * Find an Ecore_Drm_Output at the given coordinates
  *
  * This function will loop all the existing outputs in Ecore_Drm_Device and