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enlightenment/src/bin/e_randr.c

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#include "e.h"
/* local function prototypes */
static Eina_Bool _e_randr_config_load(void);
static void _e_randr_config_new(void);
static void _e_randr_config_free(void);
static Eina_Bool _e_randr_config_cb_timer(void *data);
static void _e_randr_config_restore(void);
static Eina_Bool _e_randr_event_cb_screen_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool _e_randr_event_cb_crtc_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool _e_randr_event_cb_output_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool _e_randr_event_cb_property_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event EINA_UNUSED);
/* local variables */
static Eina_List *_randr_event_handlers = NULL;
static E_Config_DD *_e_randr_edd = NULL;
static E_Config_DD *_e_randr_crtc_edd = NULL;
static E_Config_DD *_e_randr_output_edd = NULL;
/* external variables */
EAPI E_Randr_Config *e_randr_cfg = NULL;
/* private internal functions */
EINTERN Eina_Bool
e_randr_init(void)
{
/* check if randr is available */
if (!ecore_x_randr_query()) return EINA_FALSE;
/* try to load config */
if (!_e_randr_config_load())
{
/* NB: We should probably print an error here */
return EINA_FALSE;
}
/* tell randr that we are interested in receiving events
*
* NB: Requires RandR >= 1.2 */
if (ecore_x_randr_version_get() >= E_RANDR_VERSION_1_2)
{
Ecore_X_Window root = 0;
if ((root = ecore_x_window_root_first_get()))
ecore_x_randr_events_select(root, EINA_TRUE);
/* setup randr event listeners */
E_LIST_HANDLER_APPEND(_randr_event_handlers,
ECORE_X_EVENT_SCREEN_CHANGE,
_e_randr_event_cb_screen_change, NULL);
E_LIST_HANDLER_APPEND(_randr_event_handlers,
ECORE_X_EVENT_RANDR_CRTC_CHANGE,
_e_randr_event_cb_crtc_change, NULL);
E_LIST_HANDLER_APPEND(_randr_event_handlers,
ECORE_X_EVENT_RANDR_OUTPUT_CHANGE,
_e_randr_event_cb_output_change, NULL);
E_LIST_HANDLER_APPEND(_randr_event_handlers,
ECORE_X_EVENT_RANDR_OUTPUT_PROPERTY_NOTIFY,
_e_randr_event_cb_property_change, NULL);
}
return EINA_TRUE;
}
EINTERN int
e_randr_shutdown(void)
{
/* check if randr is available */
if (!ecore_x_randr_query()) return 1;
if (ecore_x_randr_version_get() >= E_RANDR_VERSION_1_2)
{
Ecore_X_Window root = 0;
/* remove randr event listeners */
E_FREE_LIST(_randr_event_handlers, ecore_event_handler_del);
/* tell randr that we are not interested in receiving events anymore */
if ((root = ecore_x_window_root_first_get()))
ecore_x_randr_events_select(root, EINA_FALSE);
}
E_CONFIG_DD_FREE(_e_randr_output_edd);
E_CONFIG_DD_FREE(_e_randr_crtc_edd);
E_CONFIG_DD_FREE(_e_randr_edd);
return 1;
}
/* public API functions */
EAPI Eina_Bool
e_randr_config_save(void)
{
/* save the new config */
return e_config_domain_save("e_randr", _e_randr_edd, e_randr_cfg);
}
/* local functions */
static Eina_Bool
_e_randr_config_load(void)
{
E_Randr_Output_Config eroc;
Eina_Bool do_restore = EINA_TRUE;
/* define edd for output config */
_e_randr_output_edd =
E_CONFIG_DD_NEW("E_Randr_Output_Config", E_Randr_Output_Config);
#undef T
#undef D
#define T E_Randr_Output_Config
#define D _e_randr_output_edd
E_CONFIG_VAL(D, T, xid, UINT);
E_CONFIG_VAL(D, T, crtc, UINT);
E_CONFIG_VAL(D, T, policy, UINT);
E_CONFIG_VAL(D, T, primary, UCHAR);
eet_data_descriptor_element_add(D, "edid", EET_T_UCHAR, EET_G_VAR_ARRAY,
(char *)(&(eroc.edid)) - (char *)(&(eroc)),
(char *)(&(eroc.edid_count)) -
(char *)(&(eroc)), NULL, NULL);
eet_data_descriptor_element_add(D, "clones", EET_T_UINT, EET_G_VAR_ARRAY,
(char *)(&(eroc.clones)) - (char *)(&(eroc)),
(char *)(&(eroc.clone_count)) -
(char *)(&(eroc)), NULL, NULL);
E_CONFIG_VAL(D, T, connected, UCHAR);
E_CONFIG_VAL(D, T, exists, UCHAR);
/* define edd for crtc config */
_e_randr_crtc_edd =
E_CONFIG_DD_NEW("E_Randr_Crtc_Config", E_Randr_Crtc_Config);
#undef T
#undef D
#define T E_Randr_Crtc_Config
#define D _e_randr_crtc_edd
E_CONFIG_VAL(D, T, xid, UINT);
E_CONFIG_VAL(D, T, x, INT);
E_CONFIG_VAL(D, T, y, INT);
E_CONFIG_VAL(D, T, width, INT);
E_CONFIG_VAL(D, T, height, INT);
E_CONFIG_VAL(D, T, orient, UINT);
E_CONFIG_VAL(D, T, mode, UINT);
E_CONFIG_VAL(D, T, exists, UCHAR);
E_CONFIG_LIST(D, T, outputs, _e_randr_output_edd);
/* define edd for randr config */
_e_randr_edd = E_CONFIG_DD_NEW("E_Randr_Config", E_Randr_Config);
#undef T
#undef D
#define T E_Randr_Config
#define D _e_randr_edd
E_CONFIG_VAL(D, T, version, INT);
E_CONFIG_VAL(D, T, screen.width, INT);
E_CONFIG_VAL(D, T, screen.height, INT);
E_CONFIG_LIST(D, T, crtcs, _e_randr_crtc_edd);
E_CONFIG_VAL(D, T, restore, UCHAR);
E_CONFIG_VAL(D, T, poll_interval, INT);
/* try to load the randr config */
if ((e_randr_cfg = e_config_domain_load("e_randr", _e_randr_edd)))
{
/* check randr config version */
if (e_randr_cfg->version < (E_RANDR_CONFIG_FILE_EPOCH * 1000000))
{
/* config is too old */
do_restore = EINA_FALSE;
_e_randr_config_free();
ecore_timer_add(1.0, _e_randr_config_cb_timer,
_("Settings data needed upgrading. Your old settings have<br>"
"been wiped and a new set of defaults initialized. This<br>"
"will happen regularly during development, so don't report a<br>"
"bug. This simply means Enlightenment needs new settings<br>"
"data by default for usable functionality that your old<br>"
"settings simply lack. This new set of defaults will fix<br>"
"that by adding it in. You can re-configure things now to your<br>"
"liking. Sorry for the hiccup in your settings.<br>"));
}
else if (e_randr_cfg->version > E_RANDR_CONFIG_FILE_VERSION)
{
/* config is too new */
do_restore = EINA_FALSE;
_e_randr_config_free();
ecore_timer_add(1.0, _e_randr_config_cb_timer,
_("Your settings are NEWER than Enlightenment. This is very<br>"
"strange. This should not happen unless you downgraded<br>"
"Enlightenment or copied the settings from a place where<br>"
"a newer version of Enlightenment was running. This is bad and<br>"
"as a precaution your settings have been now restored to<br>"
"defaults. Sorry for the inconvenience.<br>"));
}
}
/* if config was too old or too new, then reload a fresh one */
if (!e_randr_cfg)
{
do_restore = EINA_FALSE;
_e_randr_config_new();
}
/* e_randr_config_new could return without actually creating a new config */
if (!e_randr_cfg) return EINA_FALSE;
/* handle upgrading any old config */
/* if (e_randr_cfg->version < E_RANDR_CONFIG_FILE_VERSION) */
/* { */
/* } */
if ((do_restore) && (e_randr_cfg->restore))
_e_randr_config_restore();
return EINA_TRUE;
}
static void
_e_randr_config_new(void)
{
Ecore_X_Window root = 0;
Ecore_X_Randr_Crtc *crtcs = NULL;
Ecore_X_Randr_Output primary = 0;
int ncrtcs = 0, i = 0;
/* create new randr cfg */
if (!(e_randr_cfg = E_NEW(E_Randr_Config, 1)))
return;
/* set version */
e_randr_cfg->version = E_RANDR_CONFIG_FILE_VERSION;
/* by default, restore config */
e_randr_cfg->restore = EINA_TRUE;
/* by default, use 4 sec poll interval */
e_randr_cfg->poll_interval = 32;
/* grab the root window once */
root = ecore_x_window_root_first_get();
/* get which output is primary */
primary = ecore_x_randr_primary_output_get(root);
/* record the current screen size in our config */
ecore_x_randr_screen_current_size_get(root, &e_randr_cfg->screen.width,
&e_randr_cfg->screen.height,
NULL, NULL);
/* try to get the list of crtcs from x */
if ((crtcs = ecore_x_randr_crtcs_get(root, &ncrtcs)))
{
/* loop the crtcs */
for (i = 0; i < ncrtcs; i++)
{
E_Randr_Crtc_Config *crtc_cfg = NULL;
Ecore_X_Randr_Output *outputs = NULL;
int noutputs = 0;
/* try to create new crtc config */
if (!(crtc_cfg = E_NEW(E_Randr_Crtc_Config, 1)))
continue;
/* assign the xid */
crtc_cfg->xid = crtcs[i];
crtc_cfg->exists = EINA_TRUE;
/* record the geometry of this crtc in our config */
ecore_x_randr_crtc_geometry_get(root, crtcs[i],
&crtc_cfg->x, &crtc_cfg->y,
&crtc_cfg->width,
&crtc_cfg->height);
/* record the orientation of this crtc in our config */
crtc_cfg->orient =
ecore_x_randr_crtc_orientation_get(root, crtcs[i]);
/* record the mode id of this crtc in our config */
crtc_cfg->mode = ecore_x_randr_crtc_mode_get(root, crtcs[i]);
/* try to get any outputs on this crtc */
if ((outputs =
ecore_x_randr_crtc_outputs_get(root, crtcs[i], &noutputs)))
{
int j = 0;
for (j = 0; j < noutputs; j++)
{
E_Randr_Output_Config *output_cfg = NULL;
Ecore_X_Randr_Connection_Status status = 1;
int clone_count = 0;
/* try to create new output config */
if (!(output_cfg = E_NEW(E_Randr_Output_Config, 1)))
continue;
/* assign output xid */
output_cfg->xid = outputs[j];
/* assign crtc for this output */
output_cfg->crtc = crtcs[i];
/* set this output policy */
output_cfg->policy = ECORE_X_RANDR_OUTPUT_POLICY_NONE;
/* get if this output is the primary */
output_cfg->primary = EINA_FALSE;
if (outputs[j] == primary)
output_cfg->primary = EINA_TRUE;
/* record the edid for this output */
output_cfg->edid =
ecore_x_randr_output_edid_get(root, outputs[j],
&output_cfg->edid_count);
/* get the clones for this output */
output_cfg->clones =
ecore_x_randr_output_clones_get(root, outputs[j],
&clone_count);
output_cfg->clone_count = (long)clone_count;
status =
ecore_x_randr_output_connection_status_get(root, outputs[j]);
output_cfg->connected = EINA_FALSE;
if (status == ECORE_X_RANDR_CONNECTION_STATUS_CONNECTED)
output_cfg->connected = EINA_TRUE;
output_cfg->exists = EINA_TRUE;
/* add this output to the list for this crtc */
crtc_cfg->outputs =
eina_list_append(crtc_cfg->outputs, output_cfg);
}
free(outputs);
}
/* append this crtc config to randr config */
e_randr_cfg->crtcs =
eina_list_append(e_randr_cfg->crtcs, crtc_cfg);
}
free(crtcs);
}
/* set limits */
E_CONFIG_LIMIT(e_randr_cfg->poll_interval, 1, 1024);
/* save the new config */
e_randr_config_save();
}
static void
_e_randr_config_free(void)
{
E_Randr_Crtc_Config *crtc = NULL;
/* safety check */
if (!e_randr_cfg) return;
/* loop the config crtcs and free them */
EINA_LIST_FREE(e_randr_cfg->crtcs, crtc)
{
E_Randr_Output_Config *output = NULL;
/* loop the config outputs on this crtc and free them */
EINA_LIST_FREE(crtc->outputs, output)
{
if (output->clones) free(output->clones);
if (output->edid) free(output->edid);
E_FREE(output);
}
E_FREE(crtc);
}
/* free the config */
E_FREE(e_randr_cfg);
}
static Eina_Bool
_e_randr_config_cb_timer(void *data)
{
e_util_dialog_show(_("Randr Settings Upgraded"), "%s", (char *)data);
return EINA_FALSE;
}
static void
_e_randr_config_restore(void)
{
Ecore_X_Window root = 0;
Ecore_X_Randr_Crtc *crtcs;
int ncrtcs = 0;
Eina_Bool need_reset = EINA_FALSE;
/* try to restore settings
*
* NB: When we restore, check the resolutions (current vs saved)
* and if there is no change then we do not need to call
* screen_reset as this triggers a full comp refresh. We can
* accomplish this simply by checking the mode */
/* grab the root window */
root = ecore_x_window_root_first_get();
/* try to get the list of crtcs */
if ((crtcs = ecore_x_randr_crtcs_get(root, &ncrtcs)))
{
int i = 0;
for (i = 0; i < ncrtcs; i++)
{
Eina_List *l;
E_Randr_Crtc_Config *crtc_cfg;
Ecore_X_Randr_Mode mode;
Ecore_X_Randr_Output *outputs;
int noutputs = 0;
/* get the mode */
mode = ecore_x_randr_crtc_mode_get(root, crtcs[i]);
/* get the outputs */
outputs =
ecore_x_randr_crtc_outputs_get(root, crtcs[i], &noutputs);
/* loop our config and find this crtc */
EINA_LIST_FOREACH(e_randr_cfg->crtcs, l, crtc_cfg)
{
/* try to find this crtc */
if (crtc_cfg->xid != crtcs[i]) continue;
/* apply the stored settings */
if (!crtc_cfg->mode)
ecore_x_randr_crtc_settings_set(root, crtc_cfg->xid,
NULL, 0, 0, 0, 0,
ECORE_X_RANDR_ORIENTATION_ROT_0);
else
ecore_x_randr_crtc_settings_set(root, crtc_cfg->xid,
outputs, noutputs,
crtc_cfg->x, crtc_cfg->y,
crtc_cfg->mode,
crtc_cfg->orient);
if (crtc_cfg->mode != mode)
need_reset = EINA_TRUE;
break;
}
/* free any allocated memory from ecore_x_randr */
free(outputs);
}
/* free any allocated memory from ecore_x_randr */
free(crtcs);
}
if (need_reset) ecore_x_randr_screen_reset(root);
}
static Eina_Bool
_e_randr_event_cb_screen_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event)
{
Ecore_X_Event_Screen_Change *ev;
Eina_Bool changed = EINA_FALSE;
ev = event;
printf("E_RANDR Event: Screen Change\n");
if (e_randr_cfg->screen.width != ev->size.width)
{
e_randr_cfg->screen.width = ev->size.width;
changed = EINA_TRUE;
}
if (e_randr_cfg->screen.height != ev->size.height)
{
e_randr_cfg->screen.height = ev->size.height;
changed = EINA_TRUE;
}
if (changed) e_randr_config_save();
return ECORE_CALLBACK_RENEW;
}
static Eina_Bool
_e_randr_event_cb_crtc_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event)
{
Ecore_X_Event_Randr_Crtc_Change *ev;
Eina_List *l = NULL;
E_Randr_Crtc_Config *crtc_cfg;
Eina_Bool changed = EINA_FALSE;
ev = event;
if (ev->crtc == 0) return ECORE_CALLBACK_RENEW;
printf("E_RANDR Event: Crtc Change: %d\n", ev->crtc);
EINA_LIST_FOREACH(e_randr_cfg->crtcs, l, crtc_cfg)
{
if (crtc_cfg->xid == ev->crtc)
{
if ((crtc_cfg->x != ev->geo.x) ||
(crtc_cfg->y != ev->geo.y) ||
(crtc_cfg->width != ev->geo.w) ||
(crtc_cfg->height != ev->geo.h) ||
(crtc_cfg->orient != ev->orientation) ||
(crtc_cfg->mode != ev->mode))
{
crtc_cfg->x = ev->geo.x;
crtc_cfg->y = ev->geo.y;
crtc_cfg->width = ev->geo.w;
crtc_cfg->height = ev->geo.h;
crtc_cfg->orient = ev->orientation;
crtc_cfg->mode = ev->mode;
changed = EINA_TRUE;
}
break;
}
}
if (changed) e_randr_config_save();
return ECORE_CALLBACK_RENEW;
}
static Eina_Bool
_e_randr_event_cb_output_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event)
{
Ecore_X_Event_Randr_Output_Change *ev;
Eina_List *l = NULL;
E_Randr_Crtc_Config *crtc_cfg;
Eina_Bool changed = EINA_FALSE;
ev = event;
/* TODO: NB: Hmmm, this is problematic :( The spec says we should get an
* event here when an output is disconnected (hotplug) if
* the hardware (video card) is capable of detecting this HOWEVER, in my
* tests, my nvidia card does not detect this.
*
* To work around this, we have added a poller to check X randr config
* against what we have saved in e_randr_cfg */
printf("E_RANDR Event: Output Change: %d\n", ev->output);
EINA_LIST_FOREACH(e_randr_cfg->crtcs, l, crtc_cfg)
{
Eina_List *o;
E_Randr_Output_Config *output_cfg;
if (ev->crtc != crtc_cfg->xid) continue;
if ((crtc_cfg->mode != ev->mode) ||
(crtc_cfg->orient != ev->orientation))
{
crtc_cfg->mode = ev->mode;
crtc_cfg->orient = ev->orientation;
changed = EINA_TRUE;
}
EINA_LIST_FOREACH(crtc_cfg->outputs, o, output_cfg)
{
if (output_cfg->xid == ev->output)
{
Eina_Bool connected = EINA_FALSE;
connected = ((ev->connection) ? EINA_FALSE : EINA_TRUE);
if ((output_cfg->crtc != ev->crtc) ||
(output_cfg->connected != connected))
{
printf("Output Changed: %d\n", ev->output);
printf("\tConnected: %d\n", connected);
output_cfg->crtc = ev->crtc;
output_cfg->connected = connected;
output_cfg->exists = connected;
changed = EINA_TRUE;
}
break;
}
}
}
if (changed) e_randr_config_save();
return ECORE_CALLBACK_RENEW;
}
static Eina_Bool
_e_randr_event_cb_property_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event EINA_UNUSED)
{
/* Ecore_X_Event_Randr_Output_Property_Notify *ev; */
/* ev = event; */
printf("E_RANDR Event: Property Change\n");
return ECORE_CALLBACK_RENEW;
}
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