Package version up to 2.7.1
[platform/core/uifw/libtdm.git] / client / tdm_client.c
index 4d8ba30..3a2ab48 100644 (file)
@@ -9,7 +9,7 @@
  *          Taeheon Kim <th908.kim@samsung.com>,
  *          YoungJun Cho <yj44.cho@samsung.com>,
  *          SooChan Lim <sc1.lim@samsung.com>,
- *          Boram Park <sc1.lim@samsung.com>
+ *          Boram Park <boram1288.park@samsung.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
@@ -33,6 +33,8 @@
  *
 **************************************************************************/
 
+#define WL_HIDE_DEPRECATED
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
@@ -42,6 +44,9 @@
 #include <stdlib.h>
 #include <time.h>
 #include <strings.h>
+#include <poll.h>
+
+#include <tdm-client-protocol.h>
 
 #include "tdm_client.h"
 #include "tdm_log.h"
 #include "tdm_list.h"
 #include "tdm.h"
 #include "tdm_private.h"
-#include "tdm-client-protocol.h"
+#include <tbm_surface_internal.h>
+
+#define TDM_ARRAY_NTH_DATA(array, type, n) (((type*)((array)->data)) + n)
 
 typedef struct _tdm_private_client_vblank tdm_private_client_vblank;
+typedef struct _tdm_private_client_voutput tdm_private_client_voutput;
 
 typedef struct _tdm_private_client {
+       pthread_mutex_t lock;
+
        struct wl_display *display;
+       struct wl_event_queue *queue;
        struct wl_registry *registry;
        struct wl_tdm *tdm;
        struct list_head output_list;
+       struct list_head voutput_list;
+
+       unsigned int enable_ttrace;
+       unsigned int stamp;
 
        tdm_private_client_vblank *temp_vblank;
 } tdm_private_client;
 
 typedef struct _tdm_private_client_output {
+       struct list_head link;
+
        tdm_private_client *private_client;
 
        char name[TDM_NAME_LEN];
@@ -76,10 +93,41 @@ typedef struct _tdm_private_client_output {
        struct list_head change_handler_list;
 
        unsigned int req_id;
+       unsigned int watch_output_changes;
 
-       struct list_head link;
+       tdm_private_client_voutput *voutput;
 } tdm_private_client_output;
 
+typedef struct _tdm_private_client_buffer {
+       struct list_head link;
+       struct wl_buffer *wl_buffer;
+} tdm_private_client_buffer;
+
+struct _tdm_private_client_voutput {
+       struct list_head link;
+       struct wl_tdm_voutput *wl_voutput;
+       struct list_head commit_handler_list;
+
+       struct {
+               int count;
+               tdm_client_output_mode *modes;
+       } available_modes;
+
+       unsigned int mmwidth;
+       unsigned int mmheight;
+
+       uint32_t msg;
+
+       struct list_head buffer_list;
+       tbm_bufmgr bufmgr;
+       tdm_private_client_buffer *attach_buffer;
+
+       tdm_private_client *private_client;
+       tdm_private_client_output *private_output;
+       char name[TDM_NAME_LEN];
+       int get_output;
+};
+
 struct _tdm_private_client_vblank {
        tdm_private_client_output *private_output;
 
@@ -91,8 +139,13 @@ struct _tdm_private_client_vblank {
        unsigned int fps;
        int offset;
        unsigned int enable_fake;
+       unsigned int enable_ttrace;
 
        unsigned int started;
+       unsigned int stamp;
+
+       double req_time;
+       double last_time;
 
        struct list_head link;
 };
@@ -104,6 +157,7 @@ typedef struct _tdm_client_output_handler_info {
        void *user_data;
 
        struct list_head link;
+       struct list_head call_link;
 } tdm_client_output_handler_info;
 
 typedef struct _tdm_client_wait_info {
@@ -113,43 +167,139 @@ typedef struct _tdm_client_wait_info {
        void *user_data;
 
        unsigned int req_id;
-       unsigned int req_sec;
-       unsigned int req_usec;
+       double req_time;
        int need_free;
 
        struct list_head link;
+       struct list_head call_link;
 } tdm_client_wait_info;
 
+typedef struct _tdm_client_voutput_commit_handler_info {
+       tdm_private_client_voutput *private_voutput;
+
+       tdm_client_voutput_commit_handler func;
+       void *user_data;
+
+       struct list_head link;
+       struct list_head call_link;
+} tdm_client_voutput_commit_handler_info;
+
+static unsigned int
+_tdm_client_check_wl_error(tdm_private_client *private_client, const char *func, int line)
+{
+       uint32_t ec, id;
+       const struct wl_interface *intf;
+       int err;
+
+       err = wl_display_get_error(private_client->display);
+       if (!err)
+               return false;
+
+       if (err == EINVAL || err == ENOMEM || err == EFAULT || err == EPROTO) {
+               ec = wl_display_get_protocol_error(private_client->display, &intf, &id);
+               TDM_ERR("[%s,%d] errno(%d) Got protocol error '%u' on interface '%s' (object '%u')",
+                               func, line, err, ec, (intf) ? intf->name : "destroyed", id);
+       } else {
+               TDM_ERR("[%s,%d] errno(%d)", func, line, err);
+       }
+
+       return true;
+}
+
+#define CHECK_WL_PROTOCOL_ERROR(pc)  _tdm_client_check_wl_error(pc, __FUNCTION__, __LINE__)
+
+static void
+_tdm_client_vblank_cb_stamp(void *data, struct wl_tdm_vblank *wl_tdm_vblank, uint32_t stamp)
+{
+       tdm_private_client_vblank *private_vblank = data;
+       tdm_private_client *private_client;
+
+       TDM_RETURN_IF_FAIL(private_vblank != NULL);
+
+       private_vblank->stamp = stamp;
+
+       TDM_RETURN_IF_FAIL(private_vblank->private_output != NULL);
+       private_client = private_vblank->private_output->private_client;
+
+       private_client->stamp = stamp;
+}
+
+/* LCOV_EXCL_START */
 static void
 _tdm_client_vblank_cb_done(void *data, struct wl_tdm_vblank *wl_tdm_vblank,
                                                   uint32_t req_id, uint32_t sequence, uint32_t tv_sec,
                                                   uint32_t tv_usec, uint32_t error)
 {
        tdm_private_client_vblank *private_vblank = data;
-       tdm_client_wait_info *w = NULL, *ww = NULL;
+       tdm_private_client *private_client;
+       tdm_client_wait_info *w = NULL, *wait_info = NULL;
 
        TDM_RETURN_IF_FAIL(private_vblank != NULL);
 
-       TDM_TRACE_COUNT(ClientDoneVBlank, req_id);
+       private_client = private_vblank->private_output->private_client;
 
-       LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->wait_list, link) {
+       private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
+
+       TDM_DBG("vblank(%p) req_id(%u) sequence(%u) time(%.6f)",
+                       private_vblank, req_id, sequence, TDM_TIME(tv_sec, tv_usec));
+
+       LIST_FOR_EACH_ENTRY(w, &private_vblank->wait_list, link) {
                if (w->req_id != req_id)
                        continue;
 
-               if (w->func)
-                       w->func(private_vblank, error, sequence, tv_sec, tv_usec, w->user_data);
+               wait_info = w;
+               break;
+       }
 
-               if (w->need_free) {
-                       LIST_DEL(&w->link);
-                       free(w);
-               } else
-                       w->need_free = 1;
+       if (!wait_info) {
+               TDM_ERR("no wait infomation for req_id(%d)", req_id);
                return;
        }
+
+       if (private_vblank->enable_ttrace)
+               TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Client_Vblank:%u", private_vblank->stamp);
+
+       if (wait_info->req_time >= private_vblank->last_time)
+               TDM_WRN("'req(%.6f) < last(%.6f)' failed. error(%d)", wait_info->req_time, private_vblank->last_time, error);
+
+       if (wait_info->need_free)
+               LIST_DEL(&wait_info->link);
+
+       if (wait_info->func) {
+               pthread_mutex_unlock(&private_client->lock);
+               wait_info->func(private_vblank, error, sequence, tv_sec, tv_usec, wait_info->user_data);
+               pthread_mutex_lock(&private_client->lock);
+       }
+
+       if (wait_info->need_free)
+               free(w);
+       else
+               wait_info->need_free = 1;
+}
+/* LCOV_EXCL_STOP */
+
+/* LCOV_EXCL_START */
+static void
+_tdm_client_vblank_cb_ttrace(void *data, struct wl_tdm_vblank *wl_tdm_vblank, uint32_t enable)
+{
+       tdm_private_client_vblank *private_vblank = data;
+       tdm_private_client *private_client;
+
+       TDM_RETURN_IF_FAIL(private_vblank != NULL);
+
+       private_vblank->enable_ttrace = enable;
+
+       TDM_RETURN_IF_FAIL(private_vblank->private_output != NULL);
+       private_client = private_vblank->private_output->private_client;
+
+       private_client->enable_ttrace = enable;
 }
+/* LCOV_EXCL_STOP */
 
 static const struct wl_tdm_vblank_listener tdm_client_vblank_listener = {
+       _tdm_client_vblank_cb_stamp,
        _tdm_client_vblank_cb_done,
+       _tdm_client_vblank_cb_ttrace,
 };
 
 static void
@@ -178,7 +328,7 @@ _tdm_client_output_destroy(tdm_private_client_output *private_output)
 
 static void
 _tdm_client_output_cb_mode(void *data, struct wl_tdm_output *wl_tdm_output,
-                                                  uint32_t width, uint32_t height, uint32_t refresh)
+                                                  uint32_t width, uint32_t height, uint32_t refresh, uint32_t error)
 {
        tdm_private_client_output *private_output = (tdm_private_client_output*)data;
 
@@ -188,61 +338,101 @@ _tdm_client_output_cb_mode(void *data, struct wl_tdm_output *wl_tdm_output,
        private_output->height = height;
        private_output->refresh = refresh;
 
+       if (error != TDM_ERROR_NONE)
+               TDM_INFO("mode event error: %d", error);
+
        TDM_DBG("private_output(%p) wl_tbm_output@%d width(%d) height(%d) refresh(%d)",
                        private_output, wl_proxy_get_id((struct wl_proxy*)private_output->output),
                        width, height, refresh);
 }
 
 static void
-_tdm_client_output_cb_connection(void *data, struct wl_tdm_output *wl_tdm_output, uint32_t value)
+_tdm_client_output_cb_connection(void *data, struct wl_tdm_output *wl_tdm_output, uint32_t value, uint32_t error)
 {
        tdm_private_client_output *private_output = (tdm_private_client_output*)data;
-       tdm_client_output_handler_info *h = NULL;
+       tdm_private_client *private_client;
+       tdm_client_output_handler_info *h = NULL, *hh = NULL;
        tdm_value v;
+       struct list_head call_list;
 
        TDM_RETURN_IF_FAIL(private_output != NULL);
 
-       if (private_output->connection == value)
+       private_client = private_output->private_client;
+
+       if (private_output->connection == value && value != TDM_OUTPUT_CONN_STATUS_MODE_SETTED)
                return;
 
        private_output->connection = value;
 
+       if (error != TDM_ERROR_NONE)
+               TDM_INFO("connection event error: %d", error);
+
        TDM_DBG("private_output(%p) wl_tbm_output@%d connection(%d)",
                        private_output,
                        wl_proxy_get_id((struct wl_proxy*)private_output->output),
                        value);
 
-       v.u32 = value;
+       LIST_INITHEAD(&call_list);
+
        LIST_FOR_EACH_ENTRY(h, &private_output->change_handler_list, link) {
+               LIST_ADDTAIL(&h->call_link, &call_list);
+       }
+
+       v.u32 = value;
+       pthread_mutex_unlock(&private_client->lock);
+       LIST_FOR_EACH_ENTRY_SAFE(h, hh, &call_list, call_link) {
                if (h->func)
                        h->func(private_output, TDM_OUTPUT_CHANGE_CONNECTION, v, h->user_data);
        }
+       pthread_mutex_lock(&private_client->lock);
 }
 
 static void
-_tdm_client_output_cb_dpms(void *data, struct wl_tdm_output *wl_tdm_output, uint32_t value)
+_tdm_client_output_cb_dpms(void *data, struct wl_tdm_output *wl_tdm_output, uint32_t value, uint32_t error)
 {
        tdm_private_client_output *private_output = (tdm_private_client_output*)data;
-       tdm_client_output_handler_info *h = NULL;
+       tdm_private_client *private_client;
+       tdm_client_output_handler_info *h = NULL, *hh = NULL;
        tdm_value v;
+       struct list_head call_list;
 
        TDM_RETURN_IF_FAIL(private_output != NULL);
 
+       private_client = private_output->private_client;
+
+       /* If value is extended value, we handle it as DPMS on in client side
+        * The extended DPMS value is valid only in server side.
+        * Or, need to export to client side also?
+        */
+       if (value > TDM_OUTPUT_DPMS_OFF)
+               value = TDM_OUTPUT_DPMS_ON;
+
        if (private_output->dpms == value)
                return;
 
        private_output->dpms = value;
 
+       if (error != TDM_ERROR_NONE)
+               TDM_INFO("dpms event error: %d", error);
+
        TDM_DBG("private_output(%p) wl_tbm_output@%d dpms(%d)",
                        private_output,
                        wl_proxy_get_id((struct wl_proxy*)private_output->output),
                        value);
 
-       v.u32 = value;
+       LIST_INITHEAD(&call_list);
+
        LIST_FOR_EACH_ENTRY(h, &private_output->change_handler_list, link) {
+               LIST_ADDTAIL(&h->call_link, &call_list);
+       }
+
+       v.u32 = value;
+       pthread_mutex_unlock(&private_client->lock);
+       LIST_FOR_EACH_ENTRY_SAFE(h, hh, &call_list, call_link) {
                if (h->func)
                        h->func(private_output, TDM_OUTPUT_CHANGE_DPMS, v, h->user_data);
        }
+       pthread_mutex_lock(&private_client->lock);
 }
 
 static const struct wl_tdm_output_listener tdm_client_output_listener = {
@@ -267,10 +457,12 @@ _tdm_client_cb_global(void *data, struct wl_registry *registry,
        }
 }
 
+/* LCOV_EXCL_START */
 static void
 _tdm_client_cb_global_remove(void *data, struct wl_registry *registry, uint32_t name)
 {
 }
+/* LCOV_EXCL_STOP */
 
 static const struct wl_registry_listener tdm_client_registry_listener = {
        _tdm_client_cb_global,
@@ -284,17 +476,33 @@ tdm_client_create(tdm_error *error)
 
        private_client = calloc(1, sizeof *private_client);
        if (!private_client) {
+               /* LCOV_EXCL_START */
+
                TDM_ERR("alloc failed");
                if (error)
                        *error = TDM_ERROR_OUT_OF_MEMORY;
                return NULL;
+
+               /* LCOV_EXCL_STOP */
+       }
+
+       if (pthread_mutex_init(&private_client->lock, NULL)) {
+               TDM_ERR("mutex init failed: %m");
+               free(private_client);
+               if (error)
+                       *error = TDM_ERROR_OUT_OF_MEMORY;
+               return NULL;
        }
 
        LIST_INITHEAD(&private_client->output_list);
+       LIST_INITHEAD(&private_client->voutput_list);
 
        private_client->display = wl_display_connect("tdm-socket");
        TDM_GOTO_IF_FAIL(private_client->display != NULL, create_failed);
 
+       private_client->queue = wl_display_create_queue(private_client->display);
+       TDM_GOTO_IF_FAIL(private_client->queue != NULL, create_failed);
+
        private_client->registry = wl_display_get_registry(private_client->display);
        TDM_GOTO_IF_FAIL(private_client->registry != NULL, create_failed);
 
@@ -302,6 +510,9 @@ tdm_client_create(tdm_error *error)
                                                         &tdm_client_registry_listener, private_client);
        wl_display_roundtrip(private_client->display);
 
+       if (CHECK_WL_PROTOCOL_ERROR(private_client))
+               goto create_failed;
+
        /* check global objects */
        TDM_GOTO_IF_FAIL(private_client->tdm != NULL, create_failed);
 
@@ -321,24 +532,39 @@ tdm_client_destroy(tdm_client *client)
 {
        tdm_private_client *private_client = (tdm_private_client*)client;
        tdm_private_client_output *o = NULL, *oo = NULL;
+       tdm_private_client_voutput *vo = NULL, *voo = NULL;
 
        if (!private_client)
                return;
 
-       if (private_client->temp_vblank)
+       pthread_mutex_lock(&private_client->lock);
+
+       if (private_client->temp_vblank) {
+               pthread_mutex_unlock(&private_client->lock);
                tdm_client_vblank_destroy(private_client->temp_vblank);
+               pthread_mutex_lock(&private_client->lock);
+       }
 
        LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_client->output_list, link) {
                _tdm_client_output_destroy(o);
        }
 
+       LIST_FOR_EACH_ENTRY_SAFE(vo, voo, &private_client->voutput_list, link) {
+               tdm_client_voutput_destroy(vo);
+       }
+
        if (private_client->tdm)
                wl_tdm_destroy(private_client->tdm);
        if (private_client->registry)
                wl_registry_destroy(private_client->registry);
+       if (private_client->queue)
+               wl_event_queue_destroy(private_client->queue);
        if (private_client->display)
                wl_display_disconnect(private_client->display);
 
+       pthread_mutex_unlock(&private_client->lock);
+       pthread_mutex_destroy(&private_client->lock);
+
        free(private_client);
 }
 
@@ -352,7 +578,12 @@ tdm_client_get_fd(tdm_client *client, int *fd)
 
        private_client = (tdm_private_client*)client;
 
+       pthread_mutex_lock(&private_client->lock);
+
        *fd = wl_display_get_fd(private_client->display);
+
+       pthread_mutex_unlock(&private_client->lock);
+
        if (*fd < 0)
                return TDM_ERROR_OPERATION_FAILED;
 
@@ -366,18 +597,151 @@ tdm_client_handle_events(tdm_client *client)
 
        TDM_RETURN_VAL_IF_FAIL(client != NULL, TDM_ERROR_INVALID_PARAMETER);
 
+       /* LCOV_EXCL_START */
        private_client = (tdm_private_client*)client;
 
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       if (private_client->enable_ttrace)
+               TDM_TRACE_ASYNC_BEGIN((int)private_client->stamp, "TDM_Client_Events:%u", (unsigned int)private_client->stamp);
+
        wl_display_dispatch(private_client->display);
 
+       if (private_client->enable_ttrace)
+               TDM_TRACE_ASYNC_END((int)private_client->stamp, "TDM_Client_Events:%u", (unsigned int)private_client->stamp);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return TDM_ERROR_NONE;
+       /* LCOV_EXCL_STOP */
+}
+
+static int
+_tdm_client_poll(struct wl_display *display, short int events, int timeout)
+{
+       int ret;
+       struct pollfd pfd[1];
+
+       pfd[0].fd = wl_display_get_fd(display);
+       pfd[0].events = events;
+       do {
+               ret = poll(pfd, 1, timeout);
+       } while (ret == -1 && errno == EINTR);
+
+       return ret;
+}
+
+static tdm_error
+_tdm_client_dispatch_timeout(tdm_private_client *private_client, int timeout)
+{
+       int ret;
+       struct wl_display *display = private_client->display;
+
+       if (wl_display_prepare_read(display) == -1) {
+               if (wl_display_dispatch_pending(display) > 0)
+                       return TDM_ERROR_NONE;
+               else
+                       return TDM_ERROR_OPERATION_FAILED;
+       }
+
+       while (true) {
+               ret = wl_display_flush(display);
+
+               if (ret != -1 || errno != EAGAIN)
+                       break;
+
+               if (_tdm_client_poll(display, POLLOUT, -1) == -1) {
+                       wl_display_cancel_read(display);
+                       TDM_ERR("_tdm_client_poll failed");
+                       return TDM_ERROR_OPERATION_FAILED;
+               }
+       }
+
+       /* Don't stop if flushing hits an EPIPE; continue so we can read any
+        * protocol error that may have triggered it. */
+       if (ret < 0 && errno != EPIPE) {
+               TDM_ERR("ret(%d) errno(%d)", ret, errno);
+               wl_display_cancel_read(display);
+               return TDM_ERROR_OPERATION_FAILED;
+       }
+
+       ret = _tdm_client_poll(display, POLLIN, timeout);
+       if (ret <= 0) {
+               wl_display_cancel_read(display);
+               if (ret == 0) {
+                       TDM_ERR("_tdm_client_poll timeout.");
+                       return TDM_ERROR_TIMEOUT;
+               } else {
+                       TDM_ERR("_tdm_client_poll failed. (ret:%d)", ret);
+                       return TDM_ERROR_OPERATION_FAILED;
+               }
+       }
+
+       if (wl_display_read_events(display) == -1) {
+               TDM_ERR("wl_display_read_events failed");
+               return TDM_ERROR_OPERATION_FAILED;
+       }
+
+       ret = wl_display_dispatch_pending(display);
+
+       if (ret < 0) {
+               TDM_ERR("_tdm_client_dispatch_timeout failed");
+               return TDM_ERROR_OPERATION_FAILED;
+       }
+
        return TDM_ERROR_NONE;
 }
 
+tdm_error
+tdm_client_handle_events_timeout(tdm_client *client, int ms_timeout)
+{
+       tdm_private_client *private_client;
+       tdm_error ret;
+       TDM_RETURN_VAL_IF_FAIL(client != NULL, TDM_ERROR_INVALID_PARAMETER);
+
+       private_client = (tdm_private_client*)client;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       if (private_client->enable_ttrace)
+               TDM_TRACE_ASYNC_BEGIN((int)private_client->stamp, "TDM_Client_Events_Timeout:%u", (unsigned int)private_client->stamp);
+
+       ret = _tdm_client_dispatch_timeout(private_client, ms_timeout);
+
+       if (private_client->enable_ttrace)
+               TDM_TRACE_ASYNC_END((int)private_client->stamp, "TDM_Client_Events_Timeout:%u", (unsigned int)private_client->stamp);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return ret;
+}
+
 typedef struct _tdm_client_vblank_temp {
        tdm_client_vblank_handler2 func;
        void *user_data;
 } tdm_client_vblank_temp;
 
+/* LCOV_EXCL_START */
 static void
 _tdm_client_vblank_handler_temp(tdm_client_vblank *vblank, tdm_error error, unsigned int sequence,
                                                                unsigned int tv_sec, unsigned int tv_usec, void *user_data)
@@ -385,13 +749,16 @@ _tdm_client_vblank_handler_temp(tdm_client_vblank *vblank, tdm_error error, unsi
        tdm_client_vblank_temp *vblank_temp = user_data;
 
        TDM_RETURN_IF_FAIL(vblank_temp != NULL);
+       TDM_RETURN_IF_FAIL(vblank != NULL);
 
        if (vblank_temp->func)
                vblank_temp->func(sequence, tv_sec, tv_usec, vblank_temp->user_data);
 
        free(vblank_temp);
 }
+/* LCOV_EXCL_STOP */
 
+/* LCOV_EXCL_START */ /* deprecated */
 tdm_error
 tdm_client_wait_vblank(tdm_client *client, char *name,
                                           int sw_timer, int interval, int sync,
@@ -406,6 +773,9 @@ tdm_client_wait_vblank(tdm_client *client, char *name,
        TDM_RETURN_VAL_IF_FAIL(interval > 0, TDM_ERROR_INVALID_PARAMETER);
        TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 
+       if (CHECK_WL_PROTOCOL_ERROR(private_client))
+               return TDM_ERROR_PROTOCOL_ERROR;
+
        if (!private_client->temp_vblank) {
                output = tdm_client_get_output(client, name, &ret);
                TDM_RETURN_VAL_IF_FAIL(output != NULL, ret);
@@ -425,12 +795,14 @@ tdm_client_wait_vblank(tdm_client *client, char *name,
 
        return tdm_client_vblank_wait(private_client->temp_vblank, interval, _tdm_client_vblank_handler_temp, vblank_temp);
 }
+/* LCOV_EXCL_STOP */
 
 tdm_client_output*
 tdm_client_get_output(tdm_client *client, char *name, tdm_error *error)
 {
        tdm_private_client *private_client;
        tdm_private_client_output *private_output = NULL;
+       struct wl_proxy *wrapper;
 
        if (error)
                *error = TDM_ERROR_NONE;
@@ -444,41 +816,107 @@ tdm_client_get_output(tdm_client *client, char *name, tdm_error *error)
 
        private_client = (tdm_private_client*)client;
 
-       if (!name)
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               if (error)
+                       *error = TDM_ERROR_PROTOCOL_ERROR;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+       }
+
+       if (!name) {
                name = "primary";
+       } else if (!strncmp(name, "primary", 7) || !strncmp(name, "default", 7)) {
+               TDM_DBG("get primary or default output");
+       } else {
+               tdm_private_client_voutput *private_voutput = NULL;
+               int find = 0;
+
+               LIST_FOR_EACH_ENTRY(private_voutput, &private_client->voutput_list, link) {
+                       if (!strncmp(private_voutput->name, name, TDM_NAME_LEN)) {
+                               find = 1;
+                               break;
+                       }
+               }
+               if (!find) {
+                       if (error)
+                               *error = TDM_ERROR_INVALID_PARAMETER;
+                       pthread_mutex_unlock(&private_client->lock);
+                       return NULL;
+               }
+       }
 
        LIST_FOR_EACH_ENTRY(private_output, &private_client->output_list, link) {
-               if (!strncmp(private_output->name, name, TDM_NAME_LEN))
+               if (!strncmp(private_output->name, name, TDM_NAME_LEN)) {
+                       pthread_mutex_unlock(&private_client->lock);
                        return (tdm_client_output*)private_output;
+               }
+       }
+
+       wrapper = wl_proxy_create_wrapper(private_client->tdm);
+       if (!wrapper) {
+               TDM_ERR("create output_wrapper failed");
+               if (error)
+                       *error = TDM_ERROR_OUT_OF_MEMORY;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
        }
 
+       wl_proxy_set_queue(wrapper, private_client->queue);
+
        private_output = calloc(1, sizeof *private_output);
        if (!private_output) {
+               /* LCOV_EXCL_START */
+               wl_proxy_wrapper_destroy(wrapper);
                TDM_ERR("alloc failed");
                if (error)
                        *error = TDM_ERROR_OUT_OF_MEMORY;
+               pthread_mutex_unlock(&private_client->lock);
                return NULL;
+
+               /* LCOV_EXCL_STOP */
        }
 
        private_output->private_client = private_client;
 
        snprintf(private_output->name, TDM_NAME_LEN, "%s", name);
-       private_output->output = wl_tdm_create_output(private_client->tdm, private_output->name);
+       private_output->output = wl_tdm_create_output((struct wl_tdm *)wrapper, private_output->name);
+       wl_proxy_wrapper_destroy(wrapper);
        if (!private_output->output) {
+               /* LCOV_EXCL_START */
+
                TDM_ERR("couldn't create output resource");
                free(private_output);
                if (error)
                        *error = TDM_ERROR_OUT_OF_MEMORY;
+               pthread_mutex_unlock(&private_client->lock);
                return NULL;
+
+               /* LCOV_EXCL_STOP */
        }
 
        LIST_INITHEAD(&private_output->vblank_list);
        LIST_INITHEAD(&private_output->change_handler_list);
-       LIST_ADDTAIL(&private_output->link, &private_client->output_list);
 
        wl_tdm_output_add_listener(private_output->output,
                                                           &tdm_client_output_listener, private_output);
-       wl_display_roundtrip(private_client->display);
+       wl_display_roundtrip_queue(private_client->display, private_client->queue);
+
+       wl_proxy_set_queue((struct wl_proxy *)private_output->output, NULL);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               wl_tdm_output_destroy(private_output->output);
+               free(private_output);
+               if (error)
+                       *error = TDM_ERROR_PROTOCOL_ERROR;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+       }
+
+       LIST_ADDTAIL(&private_output->link, &private_client->output_list);
+
+       pthread_mutex_unlock(&private_client->lock);
 
        return (tdm_client_output*)private_output;
 }
@@ -489,25 +927,55 @@ tdm_client_output_add_change_handler(tdm_client_output *output,
                                                                         void *user_data)
 {
        tdm_private_client_output *private_output;
-       tdm_client_output_handler_info *h;
+       tdm_private_client *private_client;
+       tdm_client_output_handler_info *h = NULL;
 
        TDM_RETURN_VAL_IF_FAIL(output != NULL, TDM_ERROR_INVALID_PARAMETER);
        TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        private_output = (tdm_private_client_output*)output;
+       private_client = private_output->private_client;
+
+       LIST_FOR_EACH_ENTRY(h, &private_output->change_handler_list, link) {
+               if (h->func == func && h->user_data == user_data) {
+                       TDM_ERR("can't add twice");
+                       return TDM_ERROR_BAD_REQUEST;
+               }
+       }
 
        h = calloc(1, sizeof *h);
        TDM_RETURN_VAL_IF_FAIL(h != NULL, TDM_ERROR_OUT_OF_MEMORY);
 
-       if (LIST_IS_EMPTY(&private_output->change_handler_list))
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               free(h);
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       if (LIST_IS_EMPTY(&private_output->change_handler_list)) {
                wl_tdm_output_watch_output_changes(private_output->output, 1);
+               wl_display_roundtrip_queue(private_client->display, private_client->queue);
+
+               /* TODO: this is very tricky.
+                * If a client adds the change_handler, we might be able to guess that
+                * the client will watch the tdm client's fd and handle tdm events in
+                * event loop. Otherwise, we CAN'T make sure if a client has event loop
+                * which handles tdm events.
+                */
+               private_output->watch_output_changes = 1;
+       }
 
        h->private_output = private_output;
        h->func = func;
        h->user_data = user_data;
        LIST_ADDTAIL(&h->link, &private_output->change_handler_list);
+       LIST_INITHEAD(&h->call_link);
 
-       return TDM_ERROR_NOT_IMPLEMENTED;
+       pthread_mutex_unlock(&private_client->lock);
+
+       return TDM_ERROR_NONE;
 }
 
 void
@@ -516,12 +984,16 @@ tdm_client_output_remove_change_handler(tdm_client_output *output,
                                                                                void *user_data)
 {
        tdm_private_client_output *private_output;
+       tdm_private_client *private_client;
        tdm_client_output_handler_info *h = NULL;
 
        TDM_RETURN_IF_FAIL(output != NULL);
        TDM_RETURN_IF_FAIL(func != NULL);
 
        private_output = (tdm_private_client_output*)output;
+       private_client = private_output->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
 
        LIST_FOR_EACH_ENTRY(h, &private_output->change_handler_list, link) {
                if (h->func != func || h->user_data != user_data)
@@ -530,54 +1002,188 @@ tdm_client_output_remove_change_handler(tdm_client_output *output,
                LIST_DEL(&h->link);
                free(h);
 
-               if (LIST_IS_EMPTY(&private_output->change_handler_list))
-                       wl_tdm_output_watch_output_changes(private_output->output, 0);
+               if (LIST_IS_EMPTY(&private_output->change_handler_list)) {
+                       private_output->watch_output_changes = 0;
+                       if (!CHECK_WL_PROTOCOL_ERROR(private_client)) {
+                               wl_tdm_output_watch_output_changes(private_output->output, 0);
+                               wl_display_roundtrip_queue(private_client->display, private_client->queue);
+                       }
+               }
+
+               pthread_mutex_unlock(&private_client->lock);
 
                return;
        }
+
+       pthread_mutex_unlock(&private_client->lock);
 }
 
 tdm_error
 tdm_client_output_get_refresh_rate(tdm_client_output *output, unsigned int *refresh)
 {
        tdm_private_client_output *private_output;
+       tdm_private_client *private_client;
 
        TDM_RETURN_VAL_IF_FAIL(output != NULL, TDM_ERROR_INVALID_PARAMETER);
        TDM_RETURN_VAL_IF_FAIL(refresh != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        private_output = (tdm_private_client_output*)output;
+       private_client = private_output->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (private_output->watch_output_changes) {
+               *refresh = private_output->refresh;
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_NONE;
+       }
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       wl_proxy_set_queue((struct wl_proxy *)private_output->output, private_client->queue);
+       wl_tdm_output_get_mode(private_output->output);
+       wl_display_roundtrip_queue(private_client->display, private_client->queue);
+       wl_proxy_set_queue((struct wl_proxy *)private_output->output, NULL);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
 
        *refresh = private_output->refresh;
 
+       pthread_mutex_unlock(&private_client->lock);
+
        return TDM_ERROR_NONE;
 }
 
 tdm_error
-tdm_client_output_get_conn_status(tdm_client_output *output, tdm_output_conn_status *status)
+tdm_client_output_get_mode(tdm_client_output *output, unsigned int *width, unsigned int *height)
 {
        tdm_private_client_output *private_output;
+       tdm_private_client *private_client;
 
        TDM_RETURN_VAL_IF_FAIL(output != NULL, TDM_ERROR_INVALID_PARAMETER);
-       TDM_RETURN_VAL_IF_FAIL(status != NULL, TDM_ERROR_INVALID_PARAMETER);
+       TDM_RETURN_VAL_IF_FAIL(width != NULL, TDM_ERROR_INVALID_PARAMETER);
+       TDM_RETURN_VAL_IF_FAIL(height != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        private_output = (tdm_private_client_output*)output;
+       private_client = private_output->private_client;
 
-       *status = private_output->connection;
+       pthread_mutex_lock(&private_client->lock);
+
+       if (private_output->watch_output_changes) {
+               *width = private_output->width;
+               *height = private_output->height;
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_NONE;
+       }
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       wl_proxy_set_queue((struct wl_proxy *)private_output->output, private_client->queue);
+       wl_tdm_output_get_mode(private_output->output);
+       wl_display_roundtrip_queue(private_client->display, private_client->queue);
+       wl_proxy_set_queue((struct wl_proxy *)private_output->output, NULL);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       *width = private_output->width;
+       *height = private_output->height;
+
+       pthread_mutex_unlock(&private_client->lock);
 
        return TDM_ERROR_NONE;
 }
 
 tdm_error
-tdm_client_output_get_dpms(tdm_client_output *output, tdm_output_dpms *dpms)
+tdm_client_output_get_conn_status(tdm_client_output *output, tdm_output_conn_status *status)
 {
        tdm_private_client_output *private_output;
+       tdm_private_client *private_client;
 
        TDM_RETURN_VAL_IF_FAIL(output != NULL, TDM_ERROR_INVALID_PARAMETER);
-       TDM_RETURN_VAL_IF_FAIL(dpms != NULL, TDM_ERROR_INVALID_PARAMETER);
+       TDM_RETURN_VAL_IF_FAIL(status != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        private_output = (tdm_private_client_output*)output;
+       private_client = private_output->private_client;
 
-       *dpms = private_output->dpms;
+       pthread_mutex_lock(&private_client->lock);
+
+       if (private_output->watch_output_changes) {
+               *status = private_output->connection;
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_NONE;
+       }
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       wl_proxy_set_queue((struct wl_proxy *)private_output->output, private_client->queue);
+       wl_tdm_output_get_connection(private_output->output);
+       wl_display_roundtrip_queue(private_client->display, private_client->queue);
+       wl_proxy_set_queue((struct wl_proxy *)private_output->output, NULL);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       *status = private_output->connection;
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return TDM_ERROR_NONE;
+}
+
+tdm_error
+tdm_client_output_get_dpms(tdm_client_output *output, tdm_output_dpms *dpms)
+{
+       tdm_private_client_output *private_output;
+       tdm_private_client *private_client;
+
+       TDM_RETURN_VAL_IF_FAIL(output != NULL, TDM_ERROR_INVALID_PARAMETER);
+       TDM_RETURN_VAL_IF_FAIL(dpms != NULL, TDM_ERROR_INVALID_PARAMETER);
+
+       private_output = (tdm_private_client_output*)output;
+       private_client = private_output->private_client;
+
+       if (private_output->watch_output_changes) {
+               *dpms = private_output->dpms;
+               return TDM_ERROR_NONE;
+       }
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       wl_proxy_set_queue((struct wl_proxy *)private_output->output, private_client->queue);
+       wl_tdm_output_get_dpms(private_output->output);
+       wl_display_roundtrip_queue(private_client->display, private_client->queue);
+       wl_proxy_set_queue((struct wl_proxy *)private_output->output, NULL);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       *dpms = private_output->dpms;
+
+       pthread_mutex_unlock(&private_client->lock);
 
        return TDM_ERROR_NONE;
 }
@@ -585,8 +1191,10 @@ tdm_client_output_get_dpms(tdm_client_output *output, tdm_output_dpms *dpms)
 tdm_client_vblank*
 tdm_client_output_create_vblank(tdm_client_output *output, tdm_error *error)
 {
+       tdm_private_client *private_client;
        tdm_private_client_output *private_output;
        tdm_private_client_vblank *private_vblank;
+       struct wl_proxy *wrapper;
 
        if (error)
                *error = TDM_ERROR_NONE;
@@ -599,24 +1207,57 @@ tdm_client_output_create_vblank(tdm_client_output *output, tdm_error *error)
        }
 
        private_output = (tdm_private_client_output*)output;
+       private_client = private_output->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               if (error)
+                       *error = TDM_ERROR_PROTOCOL_ERROR;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+       }
+
+       wrapper = wl_proxy_create_wrapper(private_output->output);
+       if (!wrapper) {
+               TDM_ERR("create output_wrapper failed");
+               if (error)
+                       *error = TDM_ERROR_OUT_OF_MEMORY;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+       }
+
+       wl_proxy_set_queue(wrapper, private_client->queue);
 
        private_vblank = calloc(1, sizeof *private_vblank);
        if (!private_vblank) {
+               /* LCOV_EXCL_START */
+
                TDM_ERR("alloc failed");
+               wl_proxy_wrapper_destroy(wrapper);
                if (error)
                        *error = TDM_ERROR_OUT_OF_MEMORY;
+               pthread_mutex_unlock(&private_client->lock);
                return NULL;
+
+               /* LCOV_EXCL_STOP */
        }
 
        private_vblank->private_output = private_output;
 
-       private_vblank->vblank = wl_tdm_output_create_vblank(private_output->output);
+       private_vblank->vblank = wl_tdm_output_create_vblank((struct wl_tdm_output*)wrapper);
+       wl_proxy_wrapper_destroy(wrapper);
        if (!private_vblank->vblank) {
+               /* LCOV_EXCL_START */
+
                TDM_ERR("couldn't create vblank resource");
                free(private_vblank);
                if (error)
                        *error = TDM_ERROR_OUT_OF_MEMORY;
+               pthread_mutex_unlock(&private_client->lock);
                return NULL;
+
+               /* LCOV_EXCL_STOP */
        }
 
        /* initial value */
@@ -625,10 +1266,25 @@ tdm_client_output_create_vblank(tdm_client_output *output, tdm_error *error)
        private_vblank->enable_fake = 0;
 
        LIST_INITHEAD(&private_vblank->wait_list);
-       LIST_ADDTAIL(&private_vblank->link, &private_output->vblank_list);
 
        wl_tdm_vblank_add_listener(private_vblank->vblank,
                                                           &tdm_client_vblank_listener, private_vblank);
+       wl_display_roundtrip_queue(private_client->display, private_client->queue);
+
+       wl_proxy_set_queue((struct wl_proxy *)private_vblank->vblank, NULL);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               wl_tdm_vblank_destroy(private_vblank->vblank);
+               free(private_vblank);
+               if (error)
+                       *error = TDM_ERROR_PROTOCOL_ERROR;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+       }
+
+       LIST_ADDTAIL(&private_vblank->link, &private_output->vblank_list);
+
+       pthread_mutex_unlock(&private_client->lock);
 
        return (tdm_client_vblank*)private_vblank;
 }
@@ -637,11 +1293,16 @@ void
 tdm_client_vblank_destroy(tdm_client_vblank *vblank)
 {
        tdm_private_client_vblank *private_vblank;
+       tdm_private_client *private_client;
        tdm_client_wait_info *w = NULL, *ww = NULL;
 
        TDM_RETURN_IF_FAIL(vblank != NULL);
 
        private_vblank = vblank;
+       private_client = private_vblank->private_output->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
+
        LIST_DEL(&private_vblank->link);
 
        LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->wait_list, link) {
@@ -652,16 +1313,27 @@ tdm_client_vblank_destroy(tdm_client_vblank *vblank)
        wl_tdm_vblank_destroy(private_vblank->vblank);
 
        free(private_vblank);
+
+       pthread_mutex_unlock(&private_client->lock);
 }
 
 tdm_error
 tdm_client_vblank_set_name(tdm_client_vblank *vblank, const char *name)
 {
        tdm_private_client_vblank *private_vblank;
+       tdm_private_client *private_client;
 
        TDM_RETURN_VAL_IF_FAIL(vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        private_vblank = vblank;
+       private_client = private_vblank->private_output->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
 
        if (!name)
                name = TDM_VBLANK_DEFAULT_NAME;
@@ -671,6 +1343,8 @@ tdm_client_vblank_set_name(tdm_client_vblank *vblank, const char *name)
 
        wl_tdm_vblank_set_name(private_vblank->vblank, private_vblank->name);
 
+       pthread_mutex_unlock(&private_client->lock);
+
        return TDM_ERROR_NONE;
 }
 
@@ -678,11 +1352,16 @@ tdm_error
 tdm_client_vblank_set_sync(tdm_client_vblank *vblank, unsigned int sync)
 {
        tdm_private_client_vblank *private_vblank;
+       tdm_private_client *private_client;
 
        TDM_RETURN_VAL_IF_FAIL(vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        private_vblank = vblank;
+       private_client = private_vblank->private_output->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
        private_vblank->sync = sync;
+       pthread_mutex_unlock(&private_client->lock);
 
        return TDM_ERROR_NONE;
 }
@@ -691,18 +1370,32 @@ tdm_error
 tdm_client_vblank_set_fps(tdm_client_vblank *vblank, unsigned int fps)
 {
        tdm_private_client_vblank *private_vblank;
+       tdm_private_client *private_client;
 
        TDM_RETURN_VAL_IF_FAIL(vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
        TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 
        private_vblank = vblank;
+       private_client = private_vblank->private_output->private_client;
 
-       if (private_vblank->fps == fps)
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       if (private_vblank->fps == fps) {
+               pthread_mutex_unlock(&private_client->lock);
                return TDM_ERROR_NONE;
+       }
+
        private_vblank->fps = fps;
 
        wl_tdm_vblank_set_fps(private_vblank->vblank, fps);
 
+       pthread_mutex_unlock(&private_client->lock);
+
        return TDM_ERROR_NONE;
 }
 
@@ -710,18 +1403,33 @@ tdm_error
 tdm_client_vblank_set_offset(tdm_client_vblank *vblank, int offset_ms)
 {
        tdm_private_client_vblank *private_vblank;
+       tdm_private_client *private_client;
 
        TDM_RETURN_VAL_IF_FAIL(vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        private_vblank = vblank;
        TDM_RETURN_VAL_IF_FAIL(private_vblank->started == 0, TDM_ERROR_BAD_REQUEST);
 
-       if (private_vblank->offset == offset_ms)
+       private_client = private_vblank->private_output->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       if (private_vblank->offset == offset_ms) {
+               pthread_mutex_unlock(&private_client->lock);
                return TDM_ERROR_NONE;
+       }
+
        private_vblank->offset = offset_ms;
 
        wl_tdm_vblank_set_offset(private_vblank->vblank, offset_ms);
 
+       pthread_mutex_unlock(&private_client->lock);
+
        return TDM_ERROR_NONE;
 }
 
@@ -729,17 +1437,31 @@ tdm_error
 tdm_client_vblank_set_enable_fake(tdm_client_vblank *vblank, unsigned int enable_fake)
 {
        tdm_private_client_vblank *private_vblank;
+       tdm_private_client *private_client;
 
        TDM_RETURN_VAL_IF_FAIL(vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        private_vblank = vblank;
+       private_client = private_vblank->private_output->private_client;
 
-       if (private_vblank->enable_fake == enable_fake)
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       if (private_vblank->enable_fake == enable_fake) {
+               pthread_mutex_unlock(&private_client->lock);
                return TDM_ERROR_NONE;
+       }
+
        private_vblank->enable_fake = enable_fake;
 
        wl_tdm_vblank_set_enable_fake(private_vblank->vblank, enable_fake);
 
+       pthread_mutex_unlock(&private_client->lock);
+
        return TDM_ERROR_NONE;
 }
 
@@ -751,6 +1473,7 @@ tdm_client_vblank_wait(tdm_client_vblank *vblank, unsigned int interval, tdm_cli
        tdm_private_client_vblank *private_vblank;
        tdm_client_wait_info *w;
        struct timespec tp;
+       unsigned int req_sec, req_usec;
        int ret = 0;
 
        TDM_RETURN_VAL_IF_FAIL(vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
@@ -765,18 +1488,38 @@ tdm_client_vblank_wait(tdm_client_vblank *vblank, unsigned int interval, tdm_cli
        private_output = private_vblank->private_output;
        private_client = private_output->private_client;
 
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
        if (!private_vblank->started)
                private_vblank->started = 1;
 
-       if (private_output->dpms != TDM_OUTPUT_DPMS_ON && !private_vblank->enable_fake) {
-               TDM_INFO("dpms off");
-               return TDM_ERROR_DPMS_OFF;
+       if (!private_vblank->enable_fake) {
+               if (private_output->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
+                       TDM_ERR("output disconnected");
+                       pthread_mutex_unlock(&private_client->lock);
+                       return TDM_ERROR_OUTPUT_DISCONNECTED;
+               }
+               if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(private_output->dpms)) {
+                       TDM_ERR("dpms %s", tdm_dpms_str(private_output->dpms));
+                       pthread_mutex_unlock(&private_client->lock);
+                       return TDM_ERROR_DPMS_OFF;
+               }
        }
 
        w = calloc(1, sizeof *w);
        if (!w) {
+               /* LCOV_EXCL_START */
+
                TDM_ERR("alloc failed");
+               pthread_mutex_unlock(&private_client->lock);
                return TDM_ERROR_OUT_OF_MEMORY;
+
+               /* LCOV_EXCL_STOP */
        }
 
        w->private_vblank = private_vblank;
@@ -784,34 +1527,58 @@ tdm_client_vblank_wait(tdm_client_vblank *vblank, unsigned int interval, tdm_cli
        w->user_data = user_data;
 
        LIST_ADDTAIL(&w->link, &private_vblank->wait_list);
+       LIST_INITHEAD(&w->call_link);
 
        clock_gettime(CLOCK_MONOTONIC, &tp);
+       req_sec = (unsigned int)tp.tv_sec;
+       req_usec = (unsigned int)(tp.tv_nsec / 1000);
+
        w->req_id = ++private_output->req_id;
-       w->req_sec = (unsigned int)tp.tv_sec;
-       w->req_usec = (unsigned int)(tp.tv_nsec / 1000);
+       w->req_time = TDM_TIME(req_sec, req_usec);
        w->need_free = (private_vblank->sync) ? 0 : 1;
 
-       wl_tdm_vblank_wait_vblank(private_vblank->vblank, interval, w->req_id, w->req_sec, w->req_usec);
+       wl_tdm_vblank_wait_vblank(private_vblank->vblank, interval, w->req_id, req_sec, req_usec);
+
+       if (private_vblank->enable_ttrace)
+               TDM_TRACE_ASYNC_BEGIN((int)w->req_time, "TDM_Client_Vblank:%u", private_vblank->stamp);
 
-       TDM_TRACE_COUNT(ClientWaitVBlank, w->req_id);
+       TDM_DBG("vblank(%p) interval(%u) req_id(%d) req(%.6f)",
+                       vblank, interval, w->req_id, w->req_time);
+
+       private_vblank->req_time = w->req_time;
+
+       if (private_vblank->last_time >= w->req_time)
+               TDM_ERR("'last(%.6f) < req(%.6f)' failed", private_vblank->last_time, w->req_time);
 
        if (!private_vblank->sync) {
                wl_display_flush(private_client->display);
+               pthread_mutex_unlock(&private_client->lock);
                return TDM_ERROR_NONE;
        }
 
+       /* LCOV_EXCL_START */
+
        while (ret != -1 && !w->need_free)
                ret = wl_display_dispatch(private_client->display);
 
        clock_gettime(CLOCK_MONOTONIC, &tp);
        TDM_DBG("block during %d us",
                        ((unsigned int)(tp.tv_sec * 1000000) + (unsigned int)(tp.tv_nsec / 1000))
-                       - (w->req_sec * 1000000 + w->req_usec));
+                       - (req_sec * 1000000 + req_usec));
 
        LIST_DEL(&w->link);
        free(w);
 
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       pthread_mutex_unlock(&private_client->lock);
+
        return TDM_ERROR_NONE;
+
+       /* LCOV_EXCL_STOP */
 }
 
 tdm_error
@@ -823,6 +1590,7 @@ tdm_client_vblank_wait_seq(tdm_client_vblank *vblank, unsigned int sequence,
        tdm_private_client_vblank *private_vblank;
        tdm_client_wait_info *w;
        struct timespec tp;
+       unsigned int req_sec, req_usec;
        int ret = 0;
 
        TDM_RETURN_VAL_IF_FAIL(vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
@@ -832,18 +1600,38 @@ tdm_client_vblank_wait_seq(tdm_client_vblank *vblank, unsigned int sequence,
        private_output = private_vblank->private_output;
        private_client = private_output->private_client;
 
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
        if (!private_vblank->started)
                private_vblank->started = 1;
 
-       if (private_output->dpms != TDM_OUTPUT_DPMS_ON && !private_vblank->enable_fake) {
-               TDM_INFO("dpms off");
-               return TDM_ERROR_DPMS_OFF;
+       if (!private_vblank->enable_fake) {
+               if (private_output->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
+                       TDM_ERR("output disconnected");
+                       pthread_mutex_unlock(&private_client->lock);
+                       return TDM_ERROR_OUTPUT_DISCONNECTED;
+               }
+               if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(private_output->dpms)) {
+                       TDM_ERR("dpms %s", tdm_dpms_str(private_output->dpms));
+                       pthread_mutex_unlock(&private_client->lock);
+                       return TDM_ERROR_DPMS_OFF;
+               }
        }
 
        w = calloc(1, sizeof *w);
        if (!w) {
+               /* LCOV_EXCL_START */
+
                TDM_ERR("alloc failed");
+               pthread_mutex_unlock(&private_client->lock);
                return TDM_ERROR_OUT_OF_MEMORY;
+
+               /* LCOV_EXCL_STOP */
        }
 
        w->private_vblank = private_vblank;
@@ -851,32 +1639,891 @@ tdm_client_vblank_wait_seq(tdm_client_vblank *vblank, unsigned int sequence,
        w->user_data = user_data;
 
        LIST_ADDTAIL(&w->link, &private_vblank->wait_list);
+       LIST_INITHEAD(&w->call_link);
 
        clock_gettime(CLOCK_MONOTONIC, &tp);
+       req_sec = (unsigned int)tp.tv_sec;
+       req_usec = (unsigned int)(tp.tv_nsec / 1000);
+
        w->req_id = ++private_output->req_id;
-       w->req_sec = (unsigned int)tp.tv_sec;
-       w->req_usec = (unsigned int)(tp.tv_nsec / 1000);
+       w->req_time = TDM_TIME(req_sec, req_usec);
        w->need_free = (private_vblank->sync) ? 0 : 1;
 
-       wl_tdm_vblank_wait_vblank_seq(private_vblank->vblank, sequence, w->req_id, w->req_sec, w->req_usec);
+       wl_tdm_vblank_wait_vblank_seq(private_vblank->vblank, sequence, w->req_id, req_sec, req_usec);
+
+       if (private_vblank->enable_ttrace)
+               TDM_TRACE_ASYNC_BEGIN((int)w->req_time, "TDM_Client_Vblank:%u", private_vblank->stamp);
+
+       TDM_DBG("vblank(%p) sequence(%u) req_id(%d) req(%.6f)",
+                       vblank, sequence, w->req_id, w->req_time);
 
-       TDM_TRACE_COUNT(ClientWaitVBlank, w->req_id);
+       private_vblank->req_time = w->req_time;
+
+       if (private_vblank->last_time >= w->req_time)
+               TDM_ERR("'last(%.6f) < req(%.6f)' failed", private_vblank->last_time, w->req_time);
 
        if (!private_vblank->sync) {
                wl_display_flush(private_client->display);
+               pthread_mutex_unlock(&private_client->lock);
                return TDM_ERROR_NONE;
        }
 
+       /* LCOV_EXCL_START */
+
        while (ret != -1 && !w->need_free)
                ret = wl_display_dispatch(private_client->display);
 
        clock_gettime(CLOCK_MONOTONIC, &tp);
        TDM_DBG("block during %d us",
                        ((unsigned int)(tp.tv_sec * 1000000) + (unsigned int)(tp.tv_nsec / 1000))
-                       - (w->req_sec * 1000000 + w->req_usec));
+                       - (req_sec * 1000000 + req_usec));
 
        LIST_DEL(&w->link);
        free(w);
 
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return TDM_ERROR_NONE;
+
+       /* LCOV_EXCL_STOP */
+}
+
+unsigned int
+tdm_client_vblank_is_waiting(tdm_client_vblank *vblank)
+{
+       tdm_private_client_vblank *private_vblank;
+
+       TDM_RETURN_VAL_IF_FAIL(vblank != NULL, 0);
+
+       private_vblank = vblank;
+
+       return (LIST_LENGTH(&private_vblank->wait_list) > 0) ? 1 : 0;
+}
+
+static tbm_surface_h
+_tdm_client_voutput_create_surface_from_param(tbm_bufmgr bufmgr,
+                                                        int is_fd,
+                                                        int32_t width,
+                                                        int32_t height,
+                                                        uint32_t format,
+                                                        int32_t bpp,
+                                                        int32_t size,
+                                                        int32_t num_plane,
+                                                        struct wl_array *plane_buf_idx,
+                                                        struct wl_array *plane_offset,
+                                                        struct wl_array *plane_stride,
+                                                        struct wl_array *plane_size,
+                                                        uint32_t flags,
+                                                        int32_t num_buf,
+                                                        uint32_t buf0,
+                                                        uint32_t buf1,
+                                                        uint32_t buf2)
+{
+       int32_t names[TBM_SURF_PLANE_MAX] = { -1, -1, -1, -1};
+       tbm_surface_info_s info = { 0, };
+       tbm_bo bos[TBM_SURF_PLANE_MAX];
+       int i, numPlane, numName;
+       tbm_surface_h tbm_surface;
+
+       numPlane = tbm_surface_internal_get_num_planes(format);
+       TDM_RETURN_VAL_IF_FAIL(numPlane == num_plane, NULL);
+
+       info.width = width;
+       info.height = height;
+       info.format = format;
+       info.bpp = bpp;
+       info.size = size;
+       info.num_planes = numPlane;
+
+       /*Fill plane info*/
+       for (i = 0; i < numPlane; i++) {
+               info.planes[i].offset = *TDM_ARRAY_NTH_DATA(plane_offset, int32_t, i);
+               info.planes[i].stride = *TDM_ARRAY_NTH_DATA(plane_stride, int32_t, i);
+               info.planes[i].size = *TDM_ARRAY_NTH_DATA(plane_size, int32_t, i);
+       }
+
+       /*Fill buffer*/
+       numName = num_buf;
+       names[0] = buf0;
+       names[1] = buf1;
+       names[2] = buf2;
+
+       for (i = 0; i < numName; i++) {
+               if (is_fd)
+                       bos[i] = tbm_bo_import_fd(bufmgr, names[i]);
+               else
+                       bos[i] = tbm_bo_import(bufmgr, names[i]);
+       }
+
+       tbm_surface = tbm_surface_internal_create_with_bos(&info, bos, numName);
+       if (tbm_surface == NULL) {
+               if (is_fd) {
+                       close(buf0);
+                       close(buf1);
+                       close(buf2);
+               }
+               return NULL;
+       }
+
+       if (is_fd) {
+               close(buf0);
+               close(buf1);
+               close(buf2);
+       }
+
+       for (i = 0; i < numName; i++)
+               tbm_bo_unref(bos[i]);
+
+       return tbm_surface;
+}
+static void
+tdm_client_voutput_cb_buffer_import_with_id(void *data,
+               struct wl_tdm_voutput *wl_voutput,
+               struct wl_buffer *wl_buffer,
+               int32_t width,
+               int32_t height,
+               uint32_t format,
+               int32_t bpp,
+               int32_t size,
+               int32_t num_plane,
+               struct wl_array *plane_buf_idx,
+               struct wl_array *plane_offset,
+               struct wl_array *plane_stride,
+               struct wl_array *plane_size,
+               uint32_t flags,
+               int32_t num_buf,
+               uint32_t buf0,
+               uint32_t buf1,
+               uint32_t buf2)
+{
+       tdm_private_client_voutput *private_voutput = (tdm_private_client_voutput *)data;
+       tdm_private_client_buffer *buffer = NULL;
+       tbm_surface_h tbm_surface;
+
+       TDM_RETURN_IF_FAIL(private_voutput != NULL);
+
+       buffer = calloc(1, sizeof *buffer);
+       TDM_RETURN_IF_FAIL(buffer != NULL);
+
+       tbm_surface = _tdm_client_voutput_create_surface_from_param(private_voutput->bufmgr, 0,
+                             width, height, format, bpp, size,
+                             num_plane,
+                             plane_buf_idx, plane_offset, plane_stride, plane_size,
+                             0,
+                             num_buf,
+                             buf0, buf1, buf2);
+       TDM_GOTO_IF_FAIL(tbm_surface != NULL, fail);
+
+       tbm_surface_internal_ref(tbm_surface);
+       wl_buffer_set_user_data(wl_buffer, tbm_surface);
+
+       buffer->wl_buffer = wl_buffer;
+
+       LIST_ADDTAIL(&buffer->link, &private_voutput->buffer_list);
+
+       return;
+
+fail:
+       if (buffer)
+               free(buffer);
+
+       if (wl_buffer)
+               wl_buffer_destroy(wl_buffer);
+}
+
+static void
+tdm_client_voutput_cb_buffer_import_with_fd(void *data,
+               struct wl_tdm_voutput *wl_voutput,
+               struct wl_buffer *wl_buffer,
+               int32_t width,
+               int32_t height,
+               uint32_t format,
+               int32_t bpp,
+               int32_t size,
+               int32_t num_plane,
+               struct wl_array *plane_buf_idx,
+               struct wl_array *plane_offset,
+               struct wl_array *plane_stride,
+               struct wl_array *plane_size,
+               uint32_t flags,
+               int32_t num_buf,
+               int32_t buf0,
+               int32_t buf1,
+               int32_t buf2)
+{
+       tdm_private_client_voutput *private_voutput = (tdm_private_client_voutput *)data;
+       tdm_private_client_buffer *buffer = NULL;
+       tbm_surface_h tbm_surface;
+
+       TDM_RETURN_IF_FAIL(private_voutput != NULL);
+
+       buffer = calloc(1, sizeof *buffer);
+       TDM_RETURN_IF_FAIL(buffer != NULL);
+
+       tbm_surface = _tdm_client_voutput_create_surface_from_param(private_voutput->bufmgr, 1,
+                             width, height, format, bpp, size,
+                             num_plane,
+                             plane_buf_idx, plane_offset, plane_stride, plane_size,
+                             0,
+                             num_buf,
+                             buf0, buf1, buf2);
+       TDM_GOTO_IF_FAIL(tbm_surface != NULL, fail);
+
+       tbm_surface_internal_ref(tbm_surface);
+       wl_buffer_set_user_data(wl_buffer, tbm_surface);
+
+       buffer->wl_buffer = wl_buffer;
+
+       LIST_ADDTAIL(&buffer->link, &private_voutput->buffer_list);
+
+       return;
+
+fail:
+       if (buffer)
+               free(buffer);
+
+       if (wl_buffer)
+               wl_buffer_destroy(wl_buffer);
+}
+
+static void
+tdm_client_voutput_cb_buffer_destroy(void *data,
+               struct wl_tdm_voutput *wl_voutput,
+               struct wl_buffer *wl_buffer)
+{
+       tdm_private_client_voutput *private_voutput = (tdm_private_client_voutput *)data;
+       tdm_private_client_buffer *cb = NULL, *cbb = NULL;
+       tbm_surface_h tbm_surface = NULL;
+
+       TDM_RETURN_IF_FAIL(private_voutput != NULL);
+
+       LIST_FOR_EACH_ENTRY_SAFE(cb, cbb, &private_voutput->buffer_list, link) {
+               if (wl_buffer == cb->wl_buffer) {
+                       LIST_DEL(&cb->link);
+
+                       tbm_surface = (tbm_surface_h)wl_buffer_get_user_data(wl_buffer);
+                       if (tbm_surface)
+                               tbm_surface_internal_unref(tbm_surface);
+
+                       wl_buffer_set_user_data(wl_buffer, NULL);
+                       wl_buffer_destroy(wl_buffer);
+
+                       free(cb);
+
+                       break;
+               }
+       }
+
+       return;
+}
+
+void
+tdm_client_voutput_cb_attach_buffer(void *data,
+               struct wl_tdm_voutput *wl_voutput,
+               struct wl_buffer *wl_buffer)
+{
+       tdm_private_client_voutput *private_voutput = (tdm_private_client_voutput *)data;
+       tdm_private_client_buffer *cb = NULL, *cbb = NULL;
+
+       TDM_RETURN_IF_FAIL(private_voutput != NULL);
+
+       LIST_FOR_EACH_ENTRY_SAFE(cb, cbb, &private_voutput->buffer_list, link) {
+               if (wl_buffer == cb->wl_buffer) {
+                       private_voutput->attach_buffer = cb;
+                       break;
+               }
+       }
+
+       return;
+}
+
+void
+tdm_client_voutput_cb_commit(void *data, struct wl_tdm_voutput *wl_voutput)
+{
+       tdm_private_client_voutput *private_voutput;
+       tdm_private_client *private_client;
+       tbm_surface_h buffer = NULL;
+       tdm_client_voutput_commit_handler_info *h = NULL, *hh = NULL;
+       struct list_head call_list;
+
+       private_voutput = (tdm_private_client_voutput *)data;
+       TDM_RETURN_IF_FAIL(private_voutput != NULL);
+       TDM_RETURN_IF_FAIL(private_voutput->attach_buffer != NULL);
+
+       buffer = (tbm_surface_h)wl_buffer_get_user_data(private_voutput->attach_buffer->wl_buffer);
+       TDM_RETURN_IF_FAIL(buffer != NULL);
+
+       tbm_surface_internal_ref(buffer);
+
+       private_client = private_voutput->private_client;
+
+       LIST_INITHEAD(&call_list);
+
+       LIST_FOR_EACH_ENTRY(h, &private_voutput->commit_handler_list, link) {
+               LIST_ADDTAIL(&h->call_link, &call_list);
+       }
+
+       pthread_mutex_unlock(&private_client->lock);
+       LIST_FOR_EACH_ENTRY_SAFE(h, hh, &call_list, call_link) {
+               if (h->func)
+                       h->func(private_voutput, buffer, h->user_data);
+       }
+
+       /* if no added commit_handler call commit done immediately */
+       if (LIST_IS_EMPTY(&private_voutput->commit_handler_list))
+               tdm_client_voutput_commit_done(private_voutput);
+
+       pthread_mutex_lock(&private_client->lock);
+}
+
+void
+tdm_client_voutput_cb_ack_message(void *data, struct wl_tdm_voutput *wl_voutput, uint32_t msg)
+{
+       tdm_private_client_voutput *private_voutput = data;
+
+       private_voutput->msg = msg;
+}
+
+static const struct wl_tdm_voutput_listener tdm_client_voutput_lisntener = {
+       tdm_client_voutput_cb_buffer_import_with_id,
+       tdm_client_voutput_cb_buffer_import_with_fd,
+       tdm_client_voutput_cb_buffer_destroy,
+       tdm_client_voutput_cb_attach_buffer,
+       tdm_client_voutput_cb_commit,
+       tdm_client_voutput_cb_ack_message
+};
+
+tdm_client_voutput *
+tdm_client_create_voutput(tdm_client *client, const char *name, tdm_error *error)
+{
+       tdm_private_client *private_client;
+       tdm_private_client_output *private_output = NULL;
+       tdm_private_client_voutput *private_voutput;
+       struct wl_proxy *wrapper;
+
+       if (error)
+               *error = TDM_ERROR_NONE;
+
+       if (!client) {
+               TDM_ERR("'!client' failed");
+               if (error)
+                       *error = TDM_ERROR_INVALID_PARAMETER;
+               return NULL;
+       }
+
+       if (!name) {
+               TDM_ERR("'!name' failed");
+               if (error)
+                       *error = TDM_ERROR_INVALID_PARAMETER;
+               return NULL;
+       }
+
+       private_client = (tdm_private_client *)client;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               if (error)
+                       *error = TDM_ERROR_PROTOCOL_ERROR;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+       }
+
+       LIST_FOR_EACH_ENTRY(private_output, &private_client->output_list, link) {
+               if (!strncmp(private_output->name, name, TDM_NAME_LEN)) {
+                       if (error)
+                               *error = TDM_ERROR_INVALID_PARAMETER; // FIXME define new error type.
+                       pthread_mutex_unlock(&private_client->lock);
+                       return NULL;
+               }
+       }
+
+       wrapper = wl_proxy_create_wrapper(private_client->tdm);
+       if (!wrapper) {
+               TDM_ERR("create virtual output wrapper failed");
+               if (error)
+                       *error = TDM_ERROR_OUT_OF_MEMORY;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+       }
+
+       wl_proxy_set_queue(wrapper, private_client->queue);
+
+       private_voutput = calloc(1, sizeof *private_voutput);
+       if (!private_voutput) {
+               /* LOCV_EXCL_START */
+               wl_proxy_wrapper_destroy(wrapper);
+               TDM_ERR("alloc failed");
+               if (error)
+                       *error = TDM_ERROR_OUT_OF_MEMORY;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+               /* LOCV_EXCL_STOP */
+       }
+
+       private_voutput->bufmgr = tbm_bufmgr_init(-1);
+       if (private_voutput->bufmgr == NULL) {
+               /* LCOV_EXCL_START */
+               TDM_ERR("fail tbm_bufmgr_init");
+               free(private_voutput);
+               if (error)
+                       *error = TDM_ERROR_OUT_OF_MEMORY;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+               /* LCOV_EXCL_STOP */
+       }
+
+       LIST_INITHEAD(&private_voutput->commit_handler_list);
+       LIST_INITHEAD(&private_voutput->buffer_list);
+
+       private_voutput->private_client = private_client;
+       strncpy(private_voutput->name, name, TDM_NAME_LEN - 1);
+       private_voutput->name[TDM_NAME_LEN - 1] = '\0';
+
+       private_voutput->wl_voutput = wl_tdm_create_voutput((struct wl_tdm *)wrapper, name);
+       wl_proxy_wrapper_destroy(wrapper);
+       if (!private_voutput->wl_voutput) {
+               /* LCOV_EXCL_START */
+               TDM_ERR("couldn't create voutput resource");
+               free(private_voutput);
+               if (error)
+                       *error = TDM_ERROR_OUT_OF_MEMORY;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+               /* LCOV_EXCL_STOP */
+       }
+
+       wl_tdm_voutput_add_listener(private_voutput->wl_voutput,
+                                                               &tdm_client_voutput_lisntener, private_voutput);
+       wl_display_roundtrip_queue(private_client->display, private_client->queue);
+
+       wl_proxy_set_queue((struct wl_proxy *)private_voutput->wl_voutput, NULL);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               wl_tdm_voutput_destroy(private_voutput->wl_voutput);
+               free(private_voutput);
+               if (error)
+                       *error = TDM_ERROR_PROTOCOL_ERROR;
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+       }
+
+       if (private_voutput->msg != WL_TDM_VOUTPUT_MESSAGE_ADDED) {
+               wl_tdm_voutput_destroy(private_voutput->wl_voutput);
+               free(private_voutput);
+               if (error)
+                       *error = TDM_ERROR_PROTOCOL_ERROR;      // FIXME add new error type.
+               pthread_mutex_unlock(&private_client->lock);
+               return NULL;
+       }
+
+       LIST_ADDTAIL(&private_voutput->link, &private_client->voutput_list);
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return (tdm_client_voutput *)private_voutput;
+}
+
+void
+tdm_client_voutput_destroy(tdm_client_voutput *voutput)
+{
+       tdm_private_client_voutput *private_voutput = (tdm_private_client_voutput *)voutput;
+       tdm_private_client *private_client;
+       tdm_client_voutput_commit_handler_info *h = NULL, *hh = NULL;
+
+       if (!private_voutput)
+               return;
+       private_client = private_voutput->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (!(LIST_IS_EMPTY(&private_voutput->buffer_list))) {
+               tdm_private_client_buffer *cb = NULL, *cbb = NULL;
+
+               LIST_FOR_EACH_ENTRY_SAFE(cb, cbb, &private_voutput->buffer_list, link) {
+                       tbm_surface_h tbm_surface = NULL;
+
+                       LIST_DEL(&cb->link);
+
+                       tbm_surface = (tbm_surface_h)wl_buffer_get_user_data(cb->wl_buffer);
+                       if (tbm_surface)
+                               tbm_surface_internal_unref(tbm_surface);
+
+                       wl_buffer_set_user_data(cb->wl_buffer, NULL);
+                       wl_buffer_destroy(cb->wl_buffer);
+
+                       free(cb);
+               }
+       }
+
+       if (private_voutput->bufmgr)
+               tbm_bufmgr_deinit(private_voutput->bufmgr);
+
+       if (private_voutput->available_modes.modes)
+               free(private_voutput->available_modes.modes);
+
+       LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_voutput->commit_handler_list, link) {
+               LIST_DEL(&h->link);
+               free(h);
+       }
+
+       if (private_voutput->get_output)
+               _tdm_client_output_destroy(private_voutput->private_output);
+
+       wl_tdm_voutput_destroy(private_voutput->wl_voutput);
+
+       LIST_DEL(&private_voutput->link);
+
+       free(private_voutput);
+
+       pthread_mutex_unlock(&private_client->lock);
+}
+
+tdm_error
+tdm_client_voutput_set_available_modes(tdm_client_voutput *voutput, const tdm_client_output_mode *modes, int count)
+{
+       tdm_private_client_voutput *private_voutput;
+       tdm_private_client *private_client;
+       tdm_error ret = TDM_ERROR_NONE;
+
+       TDM_RETURN_VAL_IF_FAIL(voutput != NULL, TDM_ERROR_INVALID_PARAMETER);
+
+       if ((count > 0) && (modes == NULL))
+               return TDM_ERROR_INVALID_PARAMETER;
+
+       private_voutput = (tdm_private_client_voutput *)voutput;
+       private_client = private_voutput->private_client;
+
+       if (!private_voutput->private_output) {
+               private_voutput->private_output = tdm_client_voutput_get_client_output(private_voutput, &ret);
+               TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, TDM_ERROR_OPERATION_FAILED);
+       }
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (private_voutput->private_output->connection != TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_BAD_REQUEST;
+       }
+
+       if (private_voutput->available_modes.modes)
+               free(private_voutput->available_modes.modes);
+
+       private_voutput->available_modes.count = count;
+
+       if (count != 0) {
+               private_voutput->available_modes.modes = calloc(count, sizeof(tdm_client_output_mode));
+               memcpy(private_voutput->available_modes.modes, modes, sizeof(tdm_client_output_mode) * count);
+       }
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return TDM_ERROR_NONE;
+}
+
+tdm_error
+tdm_client_voutput_set_physical_size(tdm_client_voutput *voutput, unsigned int mmWidth, unsigned int mmHeight)
+{
+       tdm_private_client_voutput *private_voutput;
+       tdm_private_client *private_client;
+       tdm_error ret = TDM_ERROR_NONE;
+
+       TDM_RETURN_VAL_IF_FAIL(voutput != NULL, TDM_ERROR_INVALID_PARAMETER);
+       TDM_RETURN_VAL_IF_FAIL(mmWidth != 0, TDM_ERROR_INVALID_PARAMETER);
+       TDM_RETURN_VAL_IF_FAIL(mmHeight != 0, TDM_ERROR_INVALID_PARAMETER);
+
+       private_voutput = (tdm_private_client_voutput *)voutput;
+       private_client = private_voutput->private_client;
+
+       if (!private_voutput->private_output) {
+               private_voutput->private_output = tdm_client_voutput_get_client_output(private_voutput, &ret);
+               TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, TDM_ERROR_OPERATION_FAILED);
+       }
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (private_voutput->private_output->connection != TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_BAD_REQUEST;
+       }
+
+       private_voutput->mmwidth = mmWidth;
+       private_voutput->mmheight = mmHeight;
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return TDM_ERROR_NONE;
+}
+
+tdm_error
+tdm_client_voutput_add_commit_handler(tdm_client_voutput *voutput,
+                                                                         tdm_client_voutput_commit_handler func,
+                                                                         void *user_data)
+{
+       tdm_private_client_voutput *private_voutput;
+       tdm_private_client *private_client;
+       tdm_client_voutput_commit_handler_info *h = NULL;
+
+       TDM_RETURN_VAL_IF_FAIL(voutput != NULL, TDM_ERROR_INVALID_PARAMETER);
+       TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
+
+       private_voutput = (tdm_private_client_voutput *)voutput;
+       private_client = private_voutput->private_client;
+
+       LIST_FOR_EACH_ENTRY(h, &private_voutput->commit_handler_list, link) {
+               if (h->func == func && h->user_data == user_data) {
+                       TDM_ERR("can't add twice");
+                       return TDM_ERROR_BAD_REQUEST;
+               }
+       }
+
+       h = calloc(1, sizeof *h);
+       TDM_RETURN_VAL_IF_FAIL(h != NULL, TDM_ERROR_OUT_OF_MEMORY);
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (CHECK_WL_PROTOCOL_ERROR(private_client)) {
+               free(h);
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_PROTOCOL_ERROR;
+       }
+
+       h->private_voutput = private_voutput;
+       h->func = func;
+       h->user_data = user_data;
+       LIST_ADDTAIL(&h->link, &private_voutput->commit_handler_list);
+       LIST_INITHEAD(&h->call_link);
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return TDM_ERROR_NONE;
+}
+
+void
+tdm_client_voutput_remove_commit_handler(tdm_client_voutput *voutput,
+                                                                                tdm_client_voutput_commit_handler func,
+                                                                                void *user_data)
+{
+       tdm_private_client_voutput *private_voutput;
+       tdm_private_client *private_client;
+       tdm_client_voutput_commit_handler_info *h = NULL;
+
+       TDM_RETURN_IF_FAIL(voutput != NULL);
+       TDM_RETURN_IF_FAIL(func != NULL);
+
+       private_voutput = (tdm_private_client_voutput *)voutput;
+       private_client = private_voutput->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       LIST_FOR_EACH_ENTRY(h, &private_voutput->commit_handler_list, link) {
+               if (h->func != func || h->user_data != user_data)
+                       continue;
+
+               LIST_DEL(&h->link);
+               free(h);
+
+               pthread_mutex_unlock(&private_client->lock);
+
+               return;
+       }
+
+       pthread_mutex_unlock(&private_client->lock);
+}
+
+tdm_error
+tdm_client_voutput_commit_done(tdm_client_voutput *voutput)
+{
+       tdm_private_client_voutput *private_voutput;
+       tdm_private_client *private_client;
+       tbm_surface_h buffer = NULL;
+
+       TDM_RETURN_VAL_IF_FAIL(voutput != NULL, TDM_ERROR_INVALID_PARAMETER);
+
+       private_voutput = (tdm_private_client_voutput *)voutput;
+       TDM_RETURN_VAL_IF_FAIL(private_voutput->attach_buffer != NULL, TDM_ERROR_NONE);
+
+       private_client = private_voutput->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       buffer = (tbm_surface_h)wl_buffer_get_user_data(private_voutput->attach_buffer->wl_buffer);
+       tbm_surface_internal_unref(buffer);
+       private_voutput->attach_buffer = NULL;
+       wl_tdm_voutput_commit_done(private_voutput->wl_voutput);
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return TDM_ERROR_NONE;
+}
+
+tdm_client_output *
+tdm_client_voutput_get_client_output(tdm_client_voutput *voutput, tdm_error *error)
+{
+       tdm_private_client_voutput *private_voutput;
+       tdm_private_client_output *private_output = NULL;
+       tdm_private_client *private_client;
+       tdm_error ret = TDM_ERROR_NONE;
+
+       if (error)
+               *error = TDM_ERROR_NONE;
+
+       if (!voutput) {
+               TDM_ERR("'!voutput' failed");
+               if (error)
+                       *error = TDM_ERROR_INVALID_PARAMETER;
+               return NULL;
+       }
+
+       private_voutput = (tdm_private_client_voutput *)voutput;
+       private_client = private_voutput->private_client;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (private_voutput->get_output) {
+               pthread_mutex_unlock(&private_client->lock);
+               return private_voutput->private_output;
+       }
+
+       pthread_mutex_unlock(&private_client->lock);
+       private_output = (tdm_private_client_output *)tdm_client_get_output(private_voutput->private_client, private_voutput->name, &ret);
+       if (!private_output) {
+               TDM_ERR("tdm_client_voutput_get_client_output get private_output fail");
+               if (error)
+                       *error = ret;
+               return NULL;
+       }
+       pthread_mutex_lock(&private_client->lock);
+       private_output->voutput = private_voutput;
+       private_voutput->private_output = private_output;
+       private_voutput->get_output = 1;
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return private_output;
+}
+
+void
+_tdm_client_voutput_send_available_modes(tdm_private_client_voutput *private_voutput)
+{
+       tdm_client_output_mode *modes, *mode;
+       struct wl_array array;
+       int i, size;
+
+       modes = private_voutput->available_modes.modes;
+       size = sizeof(tdm_client_output_mode);
+
+       wl_array_init(&array);
+       for (i = 0; i < private_voutput->available_modes.count; i++) {
+               mode = wl_array_add(&array, size);
+               memcpy(mode, &modes[i], size);
+       }
+       wl_tdm_voutput_set_available_modes(private_voutput->wl_voutput, &array);
+       wl_array_release(&array);
+}
+
+tdm_error
+tdm_client_voutput_connect(tdm_client_voutput *voutput)
+{
+       tdm_private_client_output *private_output = NULL;;
+       tdm_private_client_voutput *private_voutput = NULL;
+       tdm_private_client *private_client;
+
+       TDM_RETURN_VAL_IF_FAIL(voutput != NULL, TDM_ERROR_INVALID_PARAMETER);
+
+       private_voutput = (tdm_private_client_voutput *)voutput;
+       private_client = private_voutput->private_client;
+       private_output = private_voutput->private_output;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (private_output->connection != TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_NONE;
+       }
+
+       if (!private_output->watch_output_changes)
+               private_output->connection = TDM_OUTPUT_CONN_STATUS_CONNECTED;
+
+       _tdm_client_voutput_send_available_modes(private_voutput);
+
+       wl_tdm_voutput_set_physical_size(private_voutput->wl_voutput, private_voutput->mmwidth, private_voutput->mmheight);
+
+       wl_tdm_voutput_connect(private_voutput->wl_voutput);
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return TDM_ERROR_NONE;
+}
+
+tdm_error
+tdm_client_voutput_disconnect(tdm_client_voutput *voutput)
+{
+       tdm_private_client_output *private_output = NULL;
+       tdm_private_client_voutput *private_voutput = NULL;
+       tdm_private_client *private_client;
+
+       TDM_RETURN_VAL_IF_FAIL(voutput != NULL, TDM_ERROR_INVALID_PARAMETER);
+
+       private_voutput = (tdm_private_client_voutput *)voutput;
+       private_client = private_voutput->private_client;
+       private_output = private_voutput->private_output;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (private_output->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_NONE;
+       }
+
+       if (!private_output->watch_output_changes)
+               private_output->connection = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
+
+       wl_tdm_voutput_disconnect(private_voutput->wl_voutput);
+
+       pthread_mutex_unlock(&private_client->lock);
+
+       return TDM_ERROR_NONE;
+}
+
+
+tdm_error
+tdm_client_voutput_set_mode(tdm_client_voutput *voutput, int index)
+{
+       tdm_private_client_output *private_output;
+       tdm_private_client_voutput *private_voutput = NULL;
+       tdm_private_client *private_client;
+
+       TDM_RETURN_VAL_IF_FAIL(voutput != NULL, TDM_ERROR_INVALID_PARAMETER);
+       TDM_RETURN_VAL_IF_FAIL(index >= 0, TDM_ERROR_INVALID_PARAMETER);
+
+       private_voutput = (tdm_private_client_voutput *)voutput;
+       private_client = private_voutput->private_client;
+       private_output = private_voutput->private_output;
+
+       pthread_mutex_lock(&private_client->lock);
+
+       if (private_voutput->available_modes.count - 1 < index) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_INVALID_PARAMETER;
+       }
+
+       if ((private_output->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) ||
+               (private_voutput->available_modes.count == 0)) {
+               pthread_mutex_unlock(&private_client->lock);
+               return TDM_ERROR_BAD_REQUEST;
+       }
+
+       TDM_DBG("mode_set request : %d", index);
+
+       wl_tdm_voutput_set_mode(private_voutput->wl_voutput, index);
+
+       pthread_mutex_unlock(&private_client->lock);
+
        return TDM_ERROR_NONE;
 }