161 lines
3.8 KiB
C
161 lines
3.8 KiB
C
/*
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* vim:ts=8:sw=3:sts=8:expandtab:cino=>5n-3f0^-2{2
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*/
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#include "e.h"
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#include "e_randr_private.h"
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#define ECORE_X_RANDR_1_1 ((1 << 16) | 1)
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#define ECORE_X_RANDR_1_2 ((1 << 16) | 2)
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#define ECORE_X_RANDR_1_3 ((1 << 16) | 3)
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#define Ecore_X_Randr_None 0
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#define Ecore_X_Randr_Unset -1
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/*
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* Save mechanism:
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* Single monitor:
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* - Save monitor using the resolution
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*
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* Multiple monitors:
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* - Use the EDID information to make sure we restore the right monitor.
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* - Depend on the sequence in which the XIDs are returned provided by the X
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* server. This means that relative indexes are used for setup store/restore.
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*
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*/
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static Eina_Bool _init(void);
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static void _shutdown(void);
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static Eina_Bool _screen_info_refresh(void);
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static Eina_Bool _e_event_config_loaded_cb(void *data, int type, void *e);
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static void _event_listeners_add(void);
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static void _event_listeners_remove(void);
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EAPI E_Randr_Screen_Info e_randr_screen_info;
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static Eina_List *_event_handlers = NULL;
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EINTERN Eina_Bool
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e_randr_init(void)
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{
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return _init();
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}
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EINTERN int
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e_randr_shutdown(void)
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{
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_shutdown();
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return 1;
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}
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EAPI Eina_Bool
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e_randr_screen_info_refresh(void)
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{
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return _screen_info_refresh();
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}
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static Eina_Bool
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_init(void)
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{
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if (!e_randr_screen_info_refresh())
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return EINA_FALSE;
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_event_listeners_add();
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if (e_config->randr_serialized_setup)
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{
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e_randr_try_restore_configuration();
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if (e_randr_screen_info.randr_version >= ECORE_X_RANDR_1_2)
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{
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if (e_config->randr_serialized_setup->outputs_policies)
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_12_policies_restore();
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}
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}
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return EINA_TRUE;
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}
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static void
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_shutdown(void)
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{
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if (e_randr_screen_info.randr_version == ECORE_X_RANDR_1_1)
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{
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_11_screen_info_free(e_randr_screen_info.rrvd_info.randr_info_11);
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e_randr_screen_info.rrvd_info.randr_info_11 = NULL;
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}
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else if (e_randr_screen_info.randr_version >= ECORE_X_RANDR_1_2)
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{
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_12_screen_info_free(e_randr_screen_info.rrvd_info.randr_info_12);
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e_randr_screen_info.rrvd_info.randr_info_12 = NULL;
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}
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_event_listeners_remove();
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}
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/**
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* @return EINA_TRUE if info could be refreshed, else EINA_FALSE
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*/
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static Eina_Bool
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_screen_info_refresh(void)
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{
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Ecore_X_Window *roots;
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Ecore_X_Window root;
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int n;
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EINA_SAFETY_ON_FALSE_RETURN_VAL(ecore_x_randr_query(), EINA_FALSE);
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if (!(roots = ecore_x_window_root_list(&n))) return EINA_FALSE;
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/* first (and only) root window */
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root = roots[0];
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free(roots);
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e_randr_screen_info.randr_version = ecore_x_randr_version_get();
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e_randr_screen_info.root = root;
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e_randr_screen_info.rrvd_info.randr_info_11 = NULL;
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// Value set/retrieval helper functions
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if (e_randr_screen_info.randr_version == ECORE_X_RANDR_1_1)
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{
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return _11_screen_info_refresh();
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}
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else if (e_randr_screen_info.randr_version >= ECORE_X_RANDR_1_2)
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{
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return _12_screen_info_refresh();
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}
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return EINA_FALSE;
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}
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static Eina_Bool
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_e_event_config_loaded_cb(void *data __UNUSED__, int type, void *ev __UNUSED__)
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{
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if (type != E_EVENT_CONFIG_LOADED) return EINA_TRUE;
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_try_restore_configuration();
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return EINA_FALSE;
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}
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static void
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_event_listeners_add(void)
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{
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_event_handlers = eina_list_append(_event_handlers, ecore_event_handler_add(E_EVENT_CONFIG_LOADED, _e_event_config_loaded_cb, NULL));
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if (e_randr_screen_info.randr_version >= ECORE_X_RANDR_1_2)
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{
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_12_event_listeners_add();
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}
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}
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// "Free" helper functions
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static void
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_event_listeners_remove(void)
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{
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Ecore_Event_Handler *_event_handler = NULL;
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EINA_LIST_FREE (_event_handlers, _event_handler)
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ecore_event_handler_del(_event_handler);
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if (e_randr_screen_info.randr_version >= ECORE_X_RANDR_1_2)
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{
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_12_event_listeners_remove();
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}
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}
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