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efl/src/modules/ecore_evas/vnc_server/ecore_evas_vnc_server.c

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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <rfb/rfb.h>
#include <rfb/rfbregion.h>
#include <rfb/keysym.h>
#include <Eina.h>
#include <Ecore.h>
#include <Ecore_Input.h>
#include <Evas.h>
#include <Ecore_Evas.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include "ecore_private.h"
#include "ecore_evas_private.h"
#include "ecore_evas_vnc_server_fb_keymap.h"
static int _ecore_evas_vnc_server_log_dom;
static unsigned int _available_seat = 1;
#ifdef EAPI
# undef EAPI
#endif
#ifdef _WIN32
# ifdef DLL_EXPORT
# define EAPI __declspec(dllexport)
# else
# define EAPI
# endif /* ! DLL_EXPORT */
#else
# ifdef __GNUC__
# if __GNUC__ >= 4
# define EAPI __attribute__ ((visibility("default")))
# else
# define EAPI
# endif
# else
# define EAPI
# endif
#endif /* ! _WIN32 */
#ifdef WRN
#undef WRN
#endif
#define WRN(...) EINA_LOG_DOM_WARN(_ecore_evas_vnc_server_log_dom, __VA_ARGS__)
#ifdef DBG
#undef DBG
#endif
#define DBG(...) EINA_LOG_DOM_DBG(_ecore_evas_vnc_server_log_dom, __VA_ARGS__)
typedef Eina_Bool (*Ecore_Evas_Vnc_Key_Info_Get)(rfbKeySym key,
const char **key_name,
const char **key_str,
const char **compose,
int *keycode);
typedef struct _Ecore_Evas_Vnc_Server {
char *frame_buffer;
rfbScreenInfoPtr vnc_screen;
Ecore_Fd_Handler *vnc_listen_handler;
Ecore_Fd_Handler *vnc_listen6_handler;
Ecore_Evas_Vnc_Client_Accept_Cb accept_cb;
Ecore_Evas_Vnc_Client_Disconnected_Cb disc_cb;
void *cb_data;
Evas_Object *snapshot;
Ecore_Evas *ee;
Eina_Tiler *t;
Ecore_Evas_Vnc_Key_Info_Get key_info_get_func;
double double_click_time;
int last_w;
int last_h;
} Ecore_Evas_Vnc_Server;
typedef struct _Ecore_Evas_Vnc_Server_Client_Data {
Ecore_Fd_Handler *handler;
Evas_Device *keyboard;
Evas_Device *mouse;
Evas_Device *seat;
unsigned int key_modifiers;
time_t last_mouse_button_down;
Eina_Bool double_click;
Eina_Bool triple_click;
} Ecore_Evas_Vnc_Server_Client_Data;
#define VNC_BITS_PER_SAMPLE (8)
#define VNC_SAMPLES_PER_PIXEL (3)
#define VNC_BYTES_PER_PIXEL (4)
static void _ecore_evas_vnc_server_ecore_event_generic_free(void *user_data,
void *func_data);
static void
_ecore_evas_vnc_server_update_clients(rfbScreenInfoPtr vnc_screen)
{
rfbClientIteratorPtr itr;
rfbClientRec *client;
itr = rfbGetClientIterator(vnc_screen);
//No clients.
if (!itr) return;
while ((client = rfbClientIteratorNext(itr))) {
rfbBool r;
r = rfbUpdateClient(client);
if (!r)
{
Ecore_Evas_Vnc_Server_Client_Data *cdata = client->clientData;
WRN("Could not update the VNC client on seat '%s'\n",
evas_device_name_get(cdata->seat));
}
//Client disconnected
if (client->sock == -1) rfbClientConnectionGone(client);
}
rfbReleaseClientIterator(itr);
}
static void
_ecore_evas_vnc_server_format_setup(rfbScreenInfoPtr vnc_screen)
{
int aux;
//FIXME: Using BGR - Is there a better way to do this?
aux = vnc_screen->serverFormat.redShift;
vnc_screen->serverFormat.redShift = vnc_screen->serverFormat.blueShift;
vnc_screen->serverFormat.blueShift = aux;
}
static Eina_Bool
_ecore_evas_vnc_server_socket_listen_activity(void *data,
Ecore_Fd_Handler *fd_handler EINA_UNUSED)
{
rfbProcessNewConnection(data);
return ECORE_CALLBACK_RENEW;
}
static void
_ecore_evas_vnc_server_mouse_inout_emit(Ecore_Evas_Vnc_Server *server,
Evas_Device *dev, int event_type)
{
Ecore_Event_Mouse_IO *io = calloc(1, sizeof(Ecore_Event_Mouse_IO));
EINA_SAFETY_ON_NULL_RETURN(io);
io->timestamp = time(NULL);
io->dev = efl_ref(dev);
io->event_window = io->window = server->ee->prop.window;
ecore_event_add(event_type, io,
_ecore_evas_vnc_server_ecore_event_generic_free, dev);
}
static void
_ecore_evas_vnc_server_client_gone(rfbClientRec *client)
{
Ecore_Evas_Vnc_Server *server = client->screen->screenData;
Ecore_Evas_Vnc_Server_Client_Data *cdata = client->clientData;
DBG("VNC client on seat '%s' gone", evas_device_name_get(cdata->seat));
if (server->disc_cb)
server->disc_cb(server->cb_data, server->ee, client->host);
_ecore_evas_vnc_server_mouse_inout_emit(server, cdata->mouse,
ECORE_EVENT_MOUSE_OUT);
_ecore_evas_mouse_inout_set(server->ee, cdata->mouse, EINA_FALSE,
EINA_FALSE);
ecore_evas_focus_device_set(server->ee, cdata->seat, EINA_FALSE);
ecore_main_fd_handler_del(cdata->handler);
evas_device_del(cdata->keyboard);
evas_device_del(cdata->mouse);
evas_device_del(cdata->seat);
free(cdata);
_available_seat--;
}
static Eina_Bool
_ecore_evas_vnc_server_client_activity(void *data,
Ecore_Fd_Handler *fd_handler EINA_UNUSED)
{
rfbClientRec *client = data;
rfbScreenInfoPtr screen = client->screen;
rfbProcessClientMessage(client);
//macro from rfb.h
if (screen->frameBuffer && FB_UPDATE_PENDING(client))
rfbSendFramebufferUpdate(client, client->modifiedRegion);
//Client disconnected.
if (client->sock == -1)
{
rfbClientConnectionGone(client);
return ECORE_CALLBACK_DONE;
}
return ECORE_CALLBACK_RENEW;
}
static enum rfbNewClientAction
_ecore_evas_vnc_server_client_connection_new(rfbClientRec *client)
{
Ecore_Evas_Vnc_Server *server;
Ecore_Evas_Vnc_Server_Client_Data *cdata;
char buf[32];
EINA_SAFETY_ON_TRUE_RETURN_VAL(_available_seat == UINT_MAX,
RFB_CLIENT_REFUSE);
server = client->screen->screenData;
if (server->accept_cb && !server->accept_cb(server->cb_data,
server->ee, client->host))
return RFB_CLIENT_REFUSE;
cdata = calloc(1, sizeof(Ecore_Evas_Vnc_Server_Client_Data));
EINA_SAFETY_ON_NULL_RETURN_VAL(cdata, RFB_CLIENT_REFUSE);
cdata->handler = ecore_main_fd_handler_add(client->sock, ECORE_FD_READ,
_ecore_evas_vnc_server_client_activity,
client, NULL, NULL);
EINA_SAFETY_ON_NULL_GOTO(cdata->handler, err_handler);
snprintf(buf, sizeof(buf), "seat-%u", _available_seat);
cdata->seat = evas_device_add_full(server->ee->evas, buf,
"A remote VNC seat",
NULL, NULL, EVAS_DEVICE_CLASS_SEAT,
EVAS_DEVICE_SUBCLASS_NONE);
EINA_SAFETY_ON_NULL_GOTO(cdata->seat, err_handler);
evas_device_seat_id_set(cdata->seat, 2);
cdata->keyboard = evas_device_add_full(server->ee->evas, "Keyboard",
"A remote VNC keyboard",
cdata->seat, NULL,
EVAS_DEVICE_CLASS_KEYBOARD,
EVAS_DEVICE_SUBCLASS_NONE);
EINA_SAFETY_ON_NULL_GOTO(cdata->keyboard, err_dev);
cdata->mouse = evas_device_add_full(server->ee->evas, "Mouse",
"A remote VNC mouse",
cdata->seat, NULL,
EVAS_DEVICE_CLASS_MOUSE,
EVAS_DEVICE_SUBCLASS_NONE);
EINA_SAFETY_ON_NULL_GOTO(cdata->mouse, err_mouse);
client->clientGoneHook = _ecore_evas_vnc_server_client_gone;
client->clientData = cdata;
DBG("New VNC client on seat '%u'", _available_seat);
_available_seat++;
_ecore_evas_vnc_server_mouse_inout_emit(server, cdata->mouse,
ECORE_EVENT_MOUSE_IN);
_ecore_evas_mouse_inout_set(server->ee, cdata->mouse, EINA_TRUE,
EINA_FALSE);
ecore_evas_focus_device_set(server->ee, cdata->seat, EINA_TRUE);
return RFB_CLIENT_ACCEPT;
err_mouse:
evas_device_del(cdata->keyboard);
err_dev:
evas_device_del(cdata->seat);
err_handler:
free(cdata);
return RFB_CLIENT_REFUSE;
}
static unsigned int
_ecore_evas_vnc_server_modifier_to_ecore_modifier(int mod, Eina_Bool *is_lock)
{
*is_lock = EINA_FALSE;
if (mod == XK_Shift_L || mod == XK_Shift_R)
return ECORE_EVENT_MODIFIER_SHIFT;
if (mod == XK_Control_L || mod == XK_Control_R)
return ECORE_EVENT_MODIFIER_CTRL;
if (mod == XK_Alt_L || mod == XK_Alt_R)
return ECORE_EVENT_MODIFIER_ALT;
if (mod == XK_Super_L || mod == XK_Super_R)
return ECORE_EVENT_MODIFIER_WIN;
if (mod == XK_Scroll_Lock)
{
*is_lock = EINA_TRUE;
return ECORE_EVENT_LOCK_SCROLL;
}
if (mod == XK_Num_Lock)
{
*is_lock = EINA_TRUE;
return ECORE_EVENT_LOCK_NUM;
}
if (mod == XK_Caps_Lock)
{
*is_lock = EINA_TRUE;
return ECORE_EVENT_LOCK_CAPS;
}
if (mod == XK_Shift_Lock)
{
*is_lock = EINA_TRUE;
return ECORE_EVENT_LOCK_SHIFT;
}
return 0;
}
static void
_ecore_evas_vnc_server_ecore_event_generic_free(void *user_data,
void *func_data)
{
efl_unref(user_data);
free(func_data);
}
static Eina_Bool
_ecore_evas_vnc_server_fb_key_info_get(rfbKeySym key,
const char **key_name,
const char **key_str,
const char **compose,
int *keycode EINA_UNUSED)
{
return ecore_evas_vnc_server_keysym_to_fb_translate(key,
key_name, key_str,
compose);
}
static void
_ecore_evas_vnc_server_client_keyboard_event(rfbBool down,
rfbKeySym key,
rfbClientRec *client)
{
Ecore_Event_Key *e;
Ecore_Evas_Vnc_Server_Client_Data *cdata = client->clientData;
rfbScreenInfoPtr screen = client->screen;
Ecore_Evas_Vnc_Server *server = screen->screenData;
const char *key_str, *compose, *key_name;
int keycode = 0;
Eina_Bool r;
char buf[10];
if (key >= XK_Shift_L && key <= XK_Hyper_R)
{
Eina_Bool is_lock;
int mod = _ecore_evas_vnc_server_modifier_to_ecore_modifier(key,
&is_lock);
if (down)
{
if (!is_lock || !(cdata->key_modifiers & mod))
cdata->key_modifiers |= mod;
else
cdata->key_modifiers &= ~mod;
}
else if (!is_lock)
cdata->key_modifiers &= ~mod;
}
if (server->ee->ignore_events)
return;
r = server->key_info_get_func(key, &key_str, &key_name,
&compose, &keycode);
EINA_SAFETY_ON_FALSE_RETURN(r);
snprintf(buf, sizeof(buf), "%lc", key);
e = calloc(1, sizeof(Ecore_Event_Key) + (compose ? 0 : strlen(buf) + 1));
EINA_SAFETY_ON_NULL_RETURN(e);
e->timestamp = (unsigned int)time(NULL);
e->modifiers = cdata->key_modifiers;
e->same_screen = 1;
e->window = e->root_window = e->event_window =
server->ee->prop.window;
e->dev = cdata->keyboard;
efl_ref(cdata->keyboard);
e->keyname = key_name;
e->key = key_str;
e->keycode = keycode;
e->compose = (char *)(e + 1);
if (compose)
e->compose = compose;
else
strcpy((char *)e->compose, buf);
e->string = e->compose;
ecore_event_add(down ? ECORE_EVENT_KEY_DOWN : ECORE_EVENT_KEY_UP,
e, _ecore_evas_vnc_server_ecore_event_generic_free,
cdata->keyboard);
}
static int
_ecore_evas_vnc_server_pointer_button_get(int mask)
{
int i;
for (i = 0; i < 32; i++)
if (mask >> i & 1)
return i + 1;
return 0;
}
static void
_ecore_evas_vnc_server_client_pointer_event(int button_mask,
int x, int y,
rfbClientPtr client)
{
Ecore_Evas_Vnc_Server_Client_Data *cdata = client->clientData;
rfbScreenInfoPtr screen = client->screen;
Ecore_Evas_Vnc_Server *server = screen->screenData;
Ecore_Event_Mouse_Move *move_event;
Ecore_Event_Mouse_Button *button_event;
Ecore_Event_Mouse_Wheel *wheel_event;
int button_changed, button, event, z = 0, direction = 0;
time_t now = time(NULL);
if (server->ee->ignore_events)
return;
if (client->lastPtrX != x || client->lastPtrY != y)
{
move_event = calloc(1, sizeof(Ecore_Event_Mouse_Move));
EINA_SAFETY_ON_NULL_RETURN(move_event);
move_event->x = move_event->multi.x = x;
move_event->y = move_event->multi.y = y;
move_event->same_screen = 1;
move_event->timestamp = (unsigned int)now;
move_event->window = move_event->event_window =
move_event->root_window = server->ee->prop.window;
move_event->multi.pressure = 1.0;
move_event->modifiers = cdata->key_modifiers;
move_event->dev = cdata->mouse;
efl_ref(cdata->mouse);
ecore_event_add(ECORE_EVENT_MOUSE_MOVE, move_event,
_ecore_evas_vnc_server_ecore_event_generic_free,
cdata->mouse);
client->lastPtrX = x;
client->lastPtrY = y;
}
button_changed = button_mask - client->lastPtrButtons;
if (button_changed > 0)
{
button = _ecore_evas_vnc_server_pointer_button_get(button_changed);
switch (button)
{
case 4:
event = ECORE_EVENT_MOUSE_WHEEL;
direction = 0; //Vertical
z = -1; //Up
break;
case 5:
event = ECORE_EVENT_MOUSE_WHEEL;
direction = 0;
z = 1; //Down
break;
case 6:
event = ECORE_EVENT_MOUSE_WHEEL;
direction = 1; //Horizontal
z = -1;
break;
case 7:
event = ECORE_EVENT_MOUSE_WHEEL;
direction = 1;
z = 1;
break;
default:
event = ECORE_EVENT_MOUSE_BUTTON_DOWN;
}
if (now - cdata->last_mouse_button_down <= 1000 * server->double_click_time)
cdata->double_click = EINA_TRUE;
else
cdata->double_click = cdata->triple_click = EINA_FALSE;
if (now - cdata->last_mouse_button_down <= 2000 * server->double_click_time)
cdata->triple_click = EINA_TRUE;
else
cdata->triple_click = EINA_FALSE;
cdata->last_mouse_button_down = now;
}
else if (button_changed < 0)
{
button = _ecore_evas_vnc_server_pointer_button_get(-button_changed);
//Ignore, it was already report.
if (button > 3 && button < 8)
return;
event = ECORE_EVENT_MOUSE_BUTTON_UP;
}
else
return;
if (event == ECORE_EVENT_MOUSE_BUTTON_DOWN ||
event == ECORE_EVENT_MOUSE_BUTTON_UP)
{
button_event = calloc(1, sizeof(Ecore_Event_Mouse_Button));
EINA_SAFETY_ON_NULL_RETURN(button_event);
button_event->timestamp = (unsigned int)now;
button_event->window = button_event->event_window =
button_event->root_window = server->ee->prop.window;
button_event->x = button_event->multi.x = x;
button_event->y = button_event->multi.y = y;
button_event->multi.pressure = 1.0;
button_event->same_screen = 1;
button_event->buttons = button;
button_event->modifiers = cdata->key_modifiers;
button_event->double_click = cdata->double_click ? 1 : 0;
button_event->triple_click = cdata->triple_click ? 1 : 0;
button_event->dev = cdata->mouse;
efl_ref(cdata->mouse);
ecore_event_add(event, button_event,
_ecore_evas_vnc_server_ecore_event_generic_free,
cdata->mouse);
return;
}
//Mouse wheel
wheel_event = calloc(1, sizeof(Ecore_Event_Mouse_Wheel));
EINA_SAFETY_ON_NULL_RETURN(wheel_event);
wheel_event->dev = cdata->mouse;
efl_ref(cdata->mouse);
wheel_event->window = wheel_event->event_window =
wheel_event->root_window = server->ee->prop.window;
wheel_event->same_screen = 1;
wheel_event->modifiers = cdata->key_modifiers;
wheel_event->x = x;
wheel_event->y = y;
wheel_event->direction = direction;
wheel_event->z = z;
ecore_event_add(event, wheel_event,
_ecore_evas_vnc_server_ecore_event_generic_free,
cdata->mouse);
}
static Eina_Bool
_ecore_evas_vnc_server_init(void)
{
if (!eina_init())
{
EINA_LOG_ERR("Could not init Eina");
return EINA_FALSE;
}
if (!ecore_init())
{
EINA_LOG_ERR("Could not init Ecore");
goto err_ecore;
}
if (!ecore_evas_init())
{
EINA_LOG_ERR("Could not init Ecore_Evas");
goto err_ecore_evas;
}
if (!ecore_event_init())
{
EINA_LOG_ERR("Could not init Ecore_Event");
goto err_ecore_event;
}
_ecore_evas_vnc_server_log_dom = eina_log_domain_register("Ecore_Evas_Vnc_Server",
EINA_COLOR_LIGHTBLUE);
if (_ecore_evas_vnc_server_log_dom < 0)
{
EINA_LOG_ERR("Could not register log domain: Ecore_Evas_Vnc_Server");
goto err_domain;
}
return EINA_TRUE;
err_domain:
ecore_event_shutdown();
err_ecore_event:
ecore_evas_shutdown();
err_ecore_evas:
ecore_shutdown();
err_ecore:
eina_shutdown();
return EINA_FALSE;
}
static void
_ecore_evas_vnc_server_shutdown(void)
{
eina_log_domain_unregister(_ecore_evas_vnc_server_log_dom);
_ecore_evas_vnc_server_log_dom = -1;
ecore_event_shutdown();
ecore_evas_shutdown();
ecore_shutdown();
eina_shutdown();
}
static inline int
align4(int v)
{
return ((v / 4) + (v % 4 ? 1 : 0)) * 4;
}
static void
_ecore_evas_vnc_server_draw(void *data, Evas *e EINA_UNUSED, void *event_info)
{
Evas_Event_Render_Post *post = event_info;
Evas_Object *snapshot = data;
Ecore_Evas_Vnc_Server *server;
const void *pixels;
Eina_List *l;
Eina_Rectangle *r;
size_t size;
Eina_Bool new_buf = EINA_FALSE;
Eina_Rectangle snapshot_pos;
// Nothing was updated, so let's not bother sending nothingness
if (!post->updated_area) return ;
server = evas_object_data_get(snapshot, "_ecore_evas.vnc");
EINA_SAFETY_ON_NULL_RETURN(server);
pixels = evas_object_image_data_get(snapshot, EINA_FALSE);
evas_object_geometry_get(snapshot,
&snapshot_pos.x,
&snapshot_pos.y,
&snapshot_pos.w,
&snapshot_pos.h);
// Align size on 4 pixels for vnc library stability
snapshot_pos.w = align4(snapshot_pos.w);
snapshot_pos.h = align4(snapshot_pos.h);
DBG("Preparing sending of buffer {%i, %i} with %i updates.", snapshot_pos.w, snapshot_pos.h, eina_list_count(post->updated_area));
if (!server->frame_buffer ||
server->last_w != snapshot_pos.w ||
server->last_h != snapshot_pos.h)
{
Eina_Rectangle tmp = { 0, 0, snapshot_pos.w, snapshot_pos.h };
char *new_fb;
size = snapshot_pos.w * snapshot_pos.h * VNC_BYTES_PER_PIXEL;
new_fb = malloc(size);
EINA_SAFETY_ON_NULL_RETURN(new_fb);
free(server->frame_buffer);
server->frame_buffer = new_fb;
server->last_w = snapshot_pos.w;
server->last_h = snapshot_pos.h;
new_buf = EINA_TRUE;
eina_tiler_area_size_set(server->t, snapshot_pos.w, snapshot_pos.h);
eina_tiler_rect_add(server->t, &tmp);
rfbNewFramebuffer(server->vnc_screen, server->frame_buffer,
snapshot_pos.w, snapshot_pos.h,
VNC_BITS_PER_SAMPLE, VNC_SAMPLES_PER_PIXEL, VNC_BYTES_PER_PIXEL);
_ecore_evas_vnc_server_format_setup(server->vnc_screen);
}
EINA_LIST_FOREACH(post->updated_area, l, r)
{
Eina_Rectangle tmp = *r;
size_t src_stride;
int dy;
if (tmp.x > snapshot_pos.w ||
tmp.y > snapshot_pos.h)
continue ;
if (!eina_rectangle_intersection(&tmp, &snapshot_pos))
continue ;
src_stride = tmp.w * VNC_BYTES_PER_PIXEL;
for (dy = 0; dy < tmp.h; dy++)
{
memcpy(server->frame_buffer + (tmp.x * VNC_BYTES_PER_PIXEL)
+ ((dy + tmp.y) * (snapshot_pos.w * VNC_BYTES_PER_PIXEL)),
(char *)pixels + (dy * src_stride), src_stride);
}
rfbMarkRectAsModified(server->vnc_screen,
tmp.x, tmp.y, tmp.x + tmp.w, tmp.y + tmp.h);
if (new_buf) eina_tiler_rect_del(server->t, &tmp);
}
//We did not receive the whole buffer yet, zero the missing bytes for now.
if (new_buf)
{
Eina_Iterator *it;
it = eina_tiler_iterator_new(server->t);
EINA_ITERATOR_FOREACH(it, r)
{
Eina_Rectangle tmp = *r;
size_t src_stride;
int dy;
src_stride = tmp.w * VNC_BYTES_PER_PIXEL;
for (dy = 0; dy < tmp.h; dy++)
{
memset(server->frame_buffer + (tmp.x * VNC_BYTES_PER_PIXEL)
+ ((dy + tmp.y) * (snapshot_pos.w * VNC_BYTES_PER_PIXEL)),
0, src_stride);
}
}
eina_iterator_free(it);
eina_tiler_clear(server->t);
}
_ecore_evas_vnc_server_update_clients(server->vnc_screen);
}
static void
_ecore_evas_vnc_server_del(void *data, const Efl_Event *ev EINA_UNUSED)
{
Ecore_Evas_Vnc_Server *server = data;
ecore_main_fd_handler_del(server->vnc_listen6_handler);
ecore_main_fd_handler_del(server->vnc_listen_handler);
evas_object_del(server->snapshot);
rfbShutdownServer(server->vnc_screen, TRUE);
free(server->frame_buffer);
rfbScreenCleanup(server->vnc_screen);
free(server);
}
EAPI Evas_Object *
ecore_evas_vnc_server_new(Ecore_Evas *ee, int port, const char *addr,
Ecore_Evas_Vnc_Client_Accept_Cb accept_cb,
Ecore_Evas_Vnc_Client_Disconnected_Cb disc_cb,
void *data)
{
Ecore_Evas_Vnc_Server *server;
Evas_Object *snapshot;
Eina_Bool can_listen = EINA_FALSE;
EINA_SAFETY_ON_NULL_RETURN_VAL(ee, NULL);
server = calloc(1, sizeof(Ecore_Evas_Vnc_Server));
EINA_SAFETY_ON_NULL_RETURN_VAL(server, NULL);
snapshot = evas_object_image_filled_add(ee->evas);
EINA_SAFETY_ON_NULL_RETURN_VAL(snapshot, NULL);
evas_object_image_snapshot_set(snapshot, EINA_TRUE);
efl_event_callback_del(snapshot, EFL_EVENT_DEL, _ecore_evas_vnc_server_del, server);
server->key_info_get_func = _ecore_evas_vnc_server_fb_key_info_get;
server->vnc_screen = rfbGetScreen(0, NULL, 4, 4, VNC_BITS_PER_SAMPLE,
VNC_SAMPLES_PER_PIXEL, VNC_BYTES_PER_PIXEL);
EINA_SAFETY_ON_NULL_GOTO(server->vnc_screen, err_screen);
server->vnc_screen->newClientHook = _ecore_evas_vnc_server_client_connection_new;
server->vnc_screen->kbdAddEvent = _ecore_evas_vnc_server_client_keyboard_event;
server->vnc_screen->ptrAddEvent = _ecore_evas_vnc_server_client_pointer_event;
//This enables multiple client connections at the same time.
server->vnc_screen->alwaysShared = TRUE;
server->vnc_screen->frameBuffer = server->frame_buffer;
_ecore_evas_vnc_server_format_setup(server->vnc_screen);
if (port > 0)
server->vnc_screen->port = server->vnc_screen->ipv6port= port;
if (addr)
{
int err;
//rfbStringToAddr() does not change the addr contents.
err = rfbStringToAddr((char *)addr, &server->vnc_screen->listenInterface);
EINA_SAFETY_ON_TRUE_GOTO(err == 0, err_addr);
}
rfbInitServer(server->vnc_screen);
if (server->vnc_screen->listenSock >= 0)
{
server->vnc_listen_handler = ecore_main_fd_handler_add(server->vnc_screen->listenSock,
ECORE_FD_READ,
_ecore_evas_vnc_server_socket_listen_activity,
server->vnc_screen,
NULL, NULL);
EINA_SAFETY_ON_NULL_GOTO(server->vnc_listen_handler, err_listen);
can_listen = EINA_TRUE;
}
if (server->vnc_screen->listen6Sock >= 0)
{
server->vnc_listen6_handler = ecore_main_fd_handler_add(server->vnc_screen->listen6Sock,
ECORE_FD_READ,
_ecore_evas_vnc_server_socket_listen_activity,
server->vnc_screen,
NULL, NULL);
EINA_SAFETY_ON_NULL_GOTO(server->vnc_listen6_handler, err_listen6);
can_listen = EINA_TRUE;
}
//rfbInitServer() failed and could not setup the sockets.
EINA_SAFETY_ON_FALSE_GOTO(can_listen, err_engine);
server->ee = ee;
server->vnc_screen->screenData = server;
server->cb_data = data;
server->accept_cb = accept_cb;
server->disc_cb = disc_cb;
server->snapshot = snapshot;
server->t = eina_tiler_new(1, 1);
eina_tiler_tile_size_set(server->t, 1, 1);
eina_tiler_strict_set(server->t, EINA_TRUE);
evas_object_data_set(snapshot, "_ecore_evas.vnc", server);
evas_event_callback_add(ee->evas, EVAS_CALLBACK_RENDER_POST, _ecore_evas_vnc_server_draw, snapshot);
return snapshot;
err_engine:
ecore_main_fd_handler_del(server->vnc_listen6_handler);
err_listen6:
ecore_main_fd_handler_del(server->vnc_listen_handler);
err_listen:
rfbShutdownServer(server->vnc_screen, TRUE);
err_addr:
rfbScreenCleanup(server->vnc_screen);
err_screen:
free(server);
return NULL;
}
EAPI Eina_Bool
ecore_evas_vnc_server_pointer_xy_get(const Evas_Object *snapshot,
const Evas_Device *pointer,
Evas_Coord *x, Evas_Coord *y)
{
Ecore_Evas_Vnc_Server *server;
rfbClientRec *client;
Ecore_Evas_Vnc_Server_Client_Data *cdata;
rfbClientIteratorPtr itr;
EINA_SAFETY_ON_NULL_RETURN_VAL(snapshot, EINA_FALSE);
server = evas_object_data_get(snapshot, "_ecore_evas.vnc");
EINA_SAFETY_ON_NULL_RETURN_VAL(server, EINA_FALSE);
EINA_SAFETY_ON_NULL_RETURN_VAL(pointer, EINA_FALSE);
itr = rfbGetClientIterator(server->vnc_screen);
while ((client = rfbClientIteratorNext(itr)))
{
cdata = client->clientData;
if (cdata->mouse == pointer)
{
if (x) *x = client->lastPtrX;
if (y) *y = client->lastPtrY;
return EINA_TRUE;
}
}
rfbReleaseClientIterator(itr);
return EINA_FALSE;
}
EINA_MODULE_INIT(_ecore_evas_vnc_server_init);
EINA_MODULE_SHUTDOWN(_ecore_evas_vnc_server_shutdown);