tdm_display: add tdm_display_get_pp_preferred_align_vertical api
[platform/core/uifw/libtdm.git] / src / tdm_display.c
index 935824e..4deea99 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
 #include "config.h"
 #endif
 
-#include "tdm.h"
-#include "tdm_backend.h"
 #include "tdm_private.h"
-#include "tdm_helper.h"
 
 #define COUNT_MAX   10
 
        TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(dpy != NULL, TDM_ERROR_INVALID_PARAMETER, NULL); \
        private_display = (tdm_private_display*)dpy;
 
-#define OUTPUT_FUNC_ENTRY() \
+#define BACKEND_FUNC_ENTRY() \
+       tdm_private_module *private_module; \
        tdm_private_display *private_display; \
-       tdm_private_output *private_output; \
        tdm_error ret = TDM_ERROR_NONE; /* default TDM_ERROR_NONE */\
-       TDM_RETURN_VAL_IF_FAIL(output != NULL, TDM_ERROR_INVALID_PARAMETER); \
-       private_output = (tdm_private_output*)output; \
-       private_display = private_output->private_display
+       TDM_RETURN_VAL_IF_FAIL(module != NULL, TDM_ERROR_INVALID_PARAMETER); \
+       private_module = (tdm_private_module*)module; \
+       private_display = private_module->private_display;
 
-#define OUTPUT_FUNC_ENTRY_ERROR() \
-       tdm_private_display *private_display; \
-       tdm_private_output *private_output; \
-       tdm_error ret = TDM_ERROR_NONE; /* default TDM_ERROR_NONE */\
-       TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(output != NULL, TDM_ERROR_INVALID_PARAMETER, NULL); \
-       private_output = (tdm_private_output*)output; \
-       private_display = private_output->private_display
+/* LCOV_EXCL_START */
+INTERN tdm_error
+tdm_display_enable_debug_module(const char*modules)
+{
+       char temp[TDM_PATH_LEN];
+       char *arg;
+       char *end;
 
-#define LAYER_FUNC_ENTRY() \
-       tdm_private_display *private_display; \
-       tdm_private_output *private_output; \
-       tdm_private_layer *private_layer; \
-       tdm_error ret = TDM_ERROR_NONE; /* default TDM_ERROR_NONE */\
-       TDM_RETURN_VAL_IF_FAIL(layer != NULL, TDM_ERROR_INVALID_PARAMETER); \
-       private_layer = (tdm_private_layer*)layer; \
-       private_output = private_layer->private_output; \
-       private_display = private_output->private_display
+       snprintf(temp, TDM_PATH_LEN, "%s", modules);
 
-#define LAYER_FUNC_ENTRY_ERROR() \
-       tdm_private_display *private_display; \
-       tdm_private_output *private_output; \
-       tdm_private_layer *private_layer; \
-       tdm_error ret = TDM_ERROR_NONE; /* default TDM_ERROR_NONE */\
-       TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(layer != NULL, TDM_ERROR_INVALID_PARAMETER, NULL); \
-       private_layer = (tdm_private_layer*)layer; \
-       private_output = private_layer->private_output; \
-       private_display = private_output->private_display
+       tdm_debug_module = 0;
 
-#define LAYER_FUNC_ENTRY_VOID_RETURN() \
-       tdm_private_display *private_display; \
-       tdm_private_output *private_output; \
-       tdm_private_layer *private_layer; \
-       tdm_error ret = TDM_ERROR_NONE; /* default TDM_ERROR_NONE */\
-       TDM_RETURN_IF_FAIL(layer != NULL); \
-       private_layer = (tdm_private_layer*)layer; \
-       private_output = private_layer->private_output; \
-       private_display = private_output->private_display
+       arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
+       while (arg) {
+               if (!strncmp(arg, "none", 4)) {
+                       tdm_debug_module = 0;
+                       return TDM_ERROR_NONE;
+               }
+               if (!strncmp(arg, "all", 3)) {
+                       tdm_debug_module = 0xFFFFFFFF;
+                       return TDM_ERROR_NONE;
+               }
+               if (!strncmp(arg, "buffer", 6))
+                       tdm_debug_module |= TDM_DEBUG_BUFFER;
+               else if (!strncmp(arg, "event", 5))
+                       tdm_debug_module |= TDM_DEBUG_EVENT;
+               else if (!strncmp(arg, "thread", 6))
+                       tdm_debug_module |= TDM_DEBUG_THREAD;
+               else if (!strncmp(arg, "mutex", 5))
+                       tdm_debug_module |= TDM_DEBUG_MUTEX;
+               else if (!strncmp(arg, "vblank", 6))
+                       tdm_debug_module |= TDM_DEBUG_VBLANK;
+               else if (!strncmp(arg, "commit", 6))
+                       tdm_debug_module |= TDM_DEBUG_COMMIT;
+
+               arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
+       }
+
+       TDM_INFO("module debugging... '%s'", modules);
+
+       return TDM_ERROR_NONE;
+}
+
+INTERN tdm_error
+tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
+{
+       char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
+       char *path = NULL, *path2;
+       char *arg;
+       char *end;
+
+       snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
+       path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
+       if (!path2 || path2[0] == '\0')
+               path2 = TDM_DUMP_DIR;
+       else
+               path2++;
+
+       tdm_debug_dump = 0;
+
+       snprintf(temp, sizeof(temp), "%s", dump_str);
+       arg = strtok_r(temp, ",", &end);
+       TDM_GOTO_IF_FAIL(arg != NULL, done);
+
+       if (!strncmp(arg, "none", 4)) {
+               tdm_debug_dump = 0;
+               TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
+               if (tdm_debug_dump_dir) {
+                       free(tdm_debug_dump_dir);
+                       tdm_debug_dump_dir = NULL;
+               }
+               goto done;
+       }
+
+       path = tdm_helper_dump_make_directory(path2, reply, len);
+       TDM_GOTO_IF_FAIL(path != NULL, done);
+
+       if (!strncmp(arg, "current", 7)) {
+               tdm_private_module *b = NULL;
+               tdm_private_output *o = NULL;
+
+               if (!private_display) {
+                       TDM_WRN("no private_display");
+                       goto done;
+               }
+
+               LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
+                       LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
+                               tdm_private_layer *l = NULL;
+                               LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
+                                       char str[TDM_PATH_LEN];
+                                       if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
+                                               continue;
+                                       if (!l->showing_buffer)
+                                               continue;
+                                       snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
+                                       tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
+                               }
+                       }
+               }
+
+               TDM_SNPRINTF(reply, len, "path: %s\n", path);
+               goto done;
+       }
+
+       TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
+
+       while (arg) {
+               if (!strncmp(arg, "all", 3)) {
+                       tdm_debug_dump = 0xFFFFFFFF;
+                       goto done;
+               } else if (!strncmp(arg, "layer", 5)) {
+                       tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
+               } else if (!strncmp(arg, "pp", 2)) {
+                       tdm_debug_dump |= TDM_DUMP_FLAG_PP;
+               } else if (!strncmp(arg, "capture", 7)) {
+                       tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
+               } else if (!strncmp(arg, "window", 6)) {
+                       tdm_debug_dump |= TDM_DUMP_FLAG_WINDOW;
+               } else
+                       goto done;
+
+               arg = strtok_r(NULL, ",", &end);
+       }
+
+       if (tdm_debug_dump_dir)
+               free(tdm_debug_dump_dir);
+
+       tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
+
+       TDM_INFO("dump... '%s'", dump_str);
+
+done:
+       if (path)
+               free(path);
+
+       return TDM_ERROR_NONE;
+}
+
+static void
+_tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
+                                                         unsigned int tv_sec, unsigned int tv_usec, void *user_data)
+{
+       tdm_error ret = TDM_ERROR_NONE;
+
+       TDM_TRACE_MARK("VSYNC");
+
+       ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
+       TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
+}
+
+INTERN tdm_error
+tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
+{
+       tdm_private_display *private_display = dpy;
+       tdm_private_module *private_module = NULL;
+       tdm_private_output *private_output = NULL;
+       const tdm_output_mode *mode = NULL;
+       tdm_vblank *vblank = NULL;
+       tdm_error ret = TDM_ERROR_NONE;
+
+       if (!enable) {
+               LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
+                       LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
+                               if (private_output->ttrace_vblank)
+                                       tdm_vblank_destroy(private_output->ttrace_vblank);
+                               private_output->ttrace_vblank = NULL;
+                       }
+               }
+               return TDM_ERROR_NONE;
+       }
+
+       private_output = output;
+       TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
+
+       if (private_output->ttrace_vblank)
+               return TDM_ERROR_NONE;
+
+       vblank = tdm_vblank_create(private_display, output, &ret);
+       TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
+
+       ret = tdm_output_get_mode(output, &mode);
+       TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
+
+       ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
+       TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
+
+       ret = tdm_vblank_set_enable_fake(vblank, 1);
+       TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
+
+       ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
+       TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
+
+       private_output->ttrace_vblank = vblank;
+
+       return TDM_ERROR_NONE;
+
+enable_fail:
+       if (vblank)
+               tdm_vblank_destroy(vblank);
+
+       return ret;
+}
+
+INTERN tdm_error
+tdm_display_enable_ttrace(tdm_private_display *private_display, const char *ttrace, int output_id, char *reply, int *len)
+{
+       char temp[TDM_PATH_LEN];
+       char *arg;
+       char *end;
+       tdm_output *output;
+       tdm_error ret;
+       tdm_output_type type;
+
+       snprintf(temp, TDM_PATH_LEN, "%s", ttrace);
+
+       tdm_ttrace_output = output_id;
+       tdm_ttrace_module = 0;
+
+       output = tdm_display_get_output(private_display, output_id, &ret);
+       if (!output) {
+               TDM_SNPRINTF(reply, len, "can't find the output_id(%d)\n", output_id);
+               return ret;
+       }
+
+       ret = tdm_output_get_output_type(output, &type);
+       if (ret != TDM_ERROR_NONE) {
+               TDM_SNPRINTF(reply, len, "can't find the type of output_id(%d)\n", output_id);
+               return ret;
+       }
+
+       arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
+       while (arg) {
+               if (!strncmp(arg, "none", 4))
+                       tdm_ttrace_module = 0;
+               else if (!strncmp(arg, "all", 3))
+                       tdm_ttrace_module = 0xFFFFFFFF;
+               else if (!strncmp(arg, "vsync", 5))
+                       tdm_ttrace_module |= TDM_TTRACE_VSYNC;
+               else if (!strncmp(arg, "client_vblank", 13))
+                       tdm_ttrace_module |= TDM_TTRACE_CLIENT_VBLANK;
+               else if (!strncmp(arg, "server_vblank", 13))
+                       tdm_ttrace_module |= TDM_TTRACE_SERVER_VBLANK;
+               else if (!strncmp(arg, "vblank", 6))
+                       tdm_ttrace_module |= TDM_TTRACE_VBLANK;
+               else if (!strncmp(arg, "layer", 5))
+                       tdm_ttrace_module |= TDM_TTRACE_LAYER;
+               else if (!strncmp(arg, "pp", 2))
+                       tdm_ttrace_module |= TDM_TTRACE_PP;
+               else if (!strncmp(arg, "capture", 7))
+                       tdm_ttrace_module |= TDM_TTRACE_CAPTURE;
+               else  {
+                       tdm_ttrace_module = 0;
+                       tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
+                       tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
+                       TDM_SNPRINTF(reply, len, "unknown option: '%s'\n", arg);
+                       return TDM_ERROR_NONE;
+               }
+
+               arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
+       }
+
+       TDM_SNPRINTF(reply, len, "ttrace debugging... '%s' %x\n", ttrace, tdm_ttrace_module);
+
+       if (tdm_ttrace_module & TDM_TTRACE_VSYNC)
+               tdm_display_enable_ttrace_vblank(private_display, output, 1);
+       else
+               tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
+
+       if (tdm_ttrace_module & TDM_TTRACE_CLIENT_VBLANK)
+               tdm_server_enable_ttrace_client_vblank(private_display, output, 1);
+       else
+               tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
+
+       return TDM_ERROR_NONE;
+}
+
+INTERN tdm_error
+tdm_display_enable_fps(tdm_private_display *private_display, int enable)
+{
+       private_display->print_fps = enable;
+
+       TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
+
+       return TDM_ERROR_NONE;
+}
+/* LCOV_EXCL_STOP */
+
+INTERN tdm_error
+tdm_display_call_thread_cb_output_create(tdm_private_display *private_display, tdm_output *output)
+{
+       tdm_thread_cb_display_output_create output_create;
+       tdm_error ret;
+
+       if (LIST_IS_EMPTY(&private_display->output_create_handler_list)) return TDM_ERROR_NONE;
+
+       memset(&output_create, 0, sizeof output_create);
+       output_create.base.type = TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE;
+       output_create.base.length = sizeof output_create;
+       output_create.base.object_stamp = tdm_helper_get_time();
+       output_create.base.data = NULL;
+       output_create.base.sync = 1;
+       output_create.output = output;
+
+       ret = tdm_thread_cb_call(private_display, &output_create.base, 1);
+       TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
+
+       return TDM_ERROR_NONE;
+}
+
+INTERN void
+tdm_display_thread_cb_output_create(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
+{
+       tdm_thread_cb_display_output_create *output_create = (tdm_thread_cb_display_output_create*)cb_base;
+       tdm_private_output_create_handler *create_handler = user_data;
+       TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
+
+       assert(create_handler->owner_tid == syscall(SYS_gettid));
+
+       _pthread_mutex_unlock(&private_display->lock);
+       create_handler->func(private_display, output_create->output, create_handler->user_data);
+       _pthread_mutex_lock(&private_display->lock);
+}
+
+EXTERN tdm_error
+tdm_display_add_output_create_handler(tdm_display *dpy,
+                                                                         tdm_output_create_handler func,
+                                                                         void *user_data)
+{
+       tdm_private_output_create_handler *create_handler = NULL;
+
+       DISPLAY_FUNC_ENTRY();
+
+       TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
+
+       _pthread_mutex_lock(&private_display->lock);
+
+       LIST_FOR_EACH_ENTRY(create_handler, &private_display->output_create_handler_list, link) {
+               if (create_handler->func == func && create_handler->user_data == user_data) {
+                       TDM_ERR("can't add twice");
+                       _pthread_mutex_unlock(&private_display->lock);
+                       return TDM_ERROR_BAD_REQUEST;
+               }
+       }
+
+       create_handler = calloc(1, sizeof(tdm_private_output_create_handler));
+       if (!create_handler) {
+               TDM_ERR("failed: alloc memory");
+               _pthread_mutex_unlock(&private_display->lock);
+               return TDM_ERROR_OUT_OF_MEMORY;
+       }
+
+       ret = tdm_thread_cb_add(private_display, TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE, NULL,
+                                                       tdm_display_thread_cb_output_create, create_handler);
+       if (ret != TDM_ERROR_NONE) {
+               TDM_ERR("tdm_thread_cb_add failed");
+               free(create_handler);
+               _pthread_mutex_unlock(&private_display->lock);
+               return TDM_ERROR_OPERATION_FAILED;
+       }
+
+       create_handler->private_display = private_display;
+       create_handler->func = func;
+       create_handler->user_data = user_data;
+       create_handler->owner_tid = syscall(SYS_gettid);
+
+       LIST_ADDTAIL(&create_handler->link, &private_display->output_create_handler_list);
+
+       _pthread_mutex_unlock(&private_display->lock);
+
+       return ret;
+}
+
+EXTERN void
+tdm_display_remove_output_create_handler(tdm_display *dpy,
+                                                                                tdm_output_create_handler func,
+                                                                                void *user_data)
+{
+       tdm_private_display *private_display;
+       tdm_private_output_create_handler *create_handler = NULL, *hh = NULL;
+
+       TDM_RETURN_IF_FAIL(dpy != NULL);
+       TDM_RETURN_IF_FAIL(func != NULL);
+
+       private_display = (tdm_private_display*)dpy;
+
+       _pthread_mutex_lock(&private_display->lock);
+
+       LIST_FOR_EACH_ENTRY_SAFE(create_handler, hh, &private_display->output_create_handler_list, link) {
+               if (create_handler->func != func || create_handler->user_data != user_data)
+                       continue;
+
+               tdm_thread_cb_remove(private_display, TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE, NULL,
+                                                        tdm_display_thread_cb_output_create, create_handler);
+
+               LIST_DEL(&create_handler->link);
+               free(create_handler);
+
+               _pthread_mutex_unlock(&private_display->lock);
+
+               return;
+       }
+
+       _pthread_mutex_unlock(&private_display->lock);
+}
 
 EXTERN tdm_error
 tdm_display_get_capabilities(tdm_display *dpy,
                                                         tdm_display_capability *capabilities)
 {
+       tdm_private_module *private_module = NULL;
+
        DISPLAY_FUNC_ENTRY();
 
        TDM_RETURN_VAL_IF_FAIL(capabilities != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        _pthread_mutex_lock(&private_display->lock);
 
-       *capabilities = private_display->capabilities;
+       *capabilities = 0;
+
+       LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
+               *capabilities |= private_module->capabilities;
+       }
 
        _pthread_mutex_unlock(&private_display->lock);
 
@@ -123,19 +494,25 @@ EXTERN tdm_error
 tdm_display_get_pp_capabilities(tdm_display *dpy,
                                                                tdm_pp_capability *capabilities)
 {
+       tdm_private_module *pp_module;
+
        DISPLAY_FUNC_ENTRY();
 
        TDM_RETURN_VAL_IF_FAIL(capabilities != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        _pthread_mutex_lock(&private_display->lock);
 
-       if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP)) {
+       if (!private_display->pp_module) {
+               /* LCOV_EXCL_START */
                TDM_ERR("no pp capability");
                _pthread_mutex_unlock(&private_display->lock);
                return TDM_ERROR_NO_CAPABILITY;
+               /* LCOV_EXCL_STOP */
        }
 
-       *capabilities = private_display->caps_pp.capabilities;
+       pp_module = private_display->pp_module;
+
+       *capabilities = pp_module->caps_pp.capabilities;
 
        _pthread_mutex_unlock(&private_display->lock);
 
@@ -146,6 +523,8 @@ EXTERN tdm_error
 tdm_display_get_pp_available_formats(tdm_display *dpy,
                                                                         const tbm_format **formats, int *count)
 {
+       tdm_private_module *pp_module;
+
        DISPLAY_FUNC_ENTRY();
 
        TDM_RETURN_VAL_IF_FAIL(formats != NULL, TDM_ERROR_INVALID_PARAMETER);
@@ -153,14 +532,18 @@ tdm_display_get_pp_available_formats(tdm_display *dpy,
 
        _pthread_mutex_lock(&private_display->lock);
 
-       if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP)) {
+       if (!private_display->pp_module) {
+               /* LCOV_EXCL_START */
                TDM_ERR("no pp capability");
                _pthread_mutex_unlock(&private_display->lock);
                return TDM_ERROR_NO_CAPABILITY;
+               /* LCOV_EXCL_STOP */
        }
 
-       *formats = (const tbm_format *)private_display->caps_pp.formats;
-       *count = private_display->caps_pp.format_count;
+       pp_module = private_display->pp_module;
+
+       *formats = (const tbm_format *)pp_module->caps_pp.formats;
+       *count = pp_module->caps_pp.format_count;
 
        _pthread_mutex_unlock(&private_display->lock);
 
@@ -171,26 +554,59 @@ EXTERN tdm_error
 tdm_display_get_pp_available_size(tdm_display *dpy, int *min_w, int *min_h,
                                                                  int *max_w, int *max_h, int *preferred_align)
 {
+       tdm_private_module *pp_module;
+
        DISPLAY_FUNC_ENTRY();
 
        _pthread_mutex_lock(&private_display->lock);
 
-       if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP)) {
+       if (!private_display->pp_module) {
+               /* LCOV_EXCL_START */
                TDM_ERR("no pp capability");
                _pthread_mutex_unlock(&private_display->lock);
                return TDM_ERROR_NO_CAPABILITY;
+               /* LCOV_EXCL_STOP */
        }
 
+       pp_module = private_display->pp_module;
+
        if (min_w)
-               *min_w = TDM_FRONT_VALUE(private_display->caps_pp.min_w);
+               *min_w = TDM_FRONT_VALUE(pp_module->caps_pp.min_w);
        if (min_h)
-               *min_h = TDM_FRONT_VALUE(private_display->caps_pp.min_h);
+               *min_h = TDM_FRONT_VALUE(pp_module->caps_pp.min_h);
        if (max_w)
-               *max_w = TDM_FRONT_VALUE(private_display->caps_pp.max_w);
+               *max_w = TDM_FRONT_VALUE(pp_module->caps_pp.max_w);
        if (max_h)
-               *max_h = TDM_FRONT_VALUE(private_display->caps_pp.max_h);
+               *max_h = TDM_FRONT_VALUE(pp_module->caps_pp.max_h);
        if (preferred_align)
-               *preferred_align = TDM_FRONT_VALUE(private_display->caps_pp.preferred_align);
+               *preferred_align = TDM_FRONT_VALUE(pp_module->caps_pp.preferred_align);
+
+       _pthread_mutex_unlock(&private_display->lock);
+
+       return ret;
+}
+
+EXTERN tdm_error
+tdm_display_get_pp_preferred_align_vertical(tdm_display *dpy, int *preferred_align_vertical)
+{
+       tdm_private_module *pp_module;
+
+       DISPLAY_FUNC_ENTRY();
+
+       _pthread_mutex_lock(&private_display->lock);
+
+       if (!private_display->pp_module) {
+               /* LCOV_EXCL_START */
+               TDM_ERR("no pp capability");
+               _pthread_mutex_unlock(&private_display->lock);
+               return TDM_ERROR_NO_CAPABILITY;
+               /* LCOV_EXCL_STOP */
+       }
+
+       pp_module = private_display->pp_module;
+
+       if (preferred_align_vertical)
+               *preferred_align_vertical = TDM_FRONT_VALUE(pp_module->caps_pp.preferred_align_vertical);
 
        _pthread_mutex_unlock(&private_display->lock);
 
@@ -201,19 +617,25 @@ EXTERN tdm_error
 tdm_display_get_capture_capabilities(tdm_display *dpy,
                                                                         tdm_capture_capability *capabilities)
 {
+       tdm_private_module *capture_module;
+
        DISPLAY_FUNC_ENTRY();
 
        TDM_RETURN_VAL_IF_FAIL(capabilities != NULL, TDM_ERROR_INVALID_PARAMETER);
 
        _pthread_mutex_lock(&private_display->lock);
 
-       if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
+       if (!private_display->capture_module) {
+               /* LCOV_EXCL_START */
                TDM_ERR("no capture capability");
                _pthread_mutex_unlock(&private_display->lock);
                return TDM_ERROR_NO_CAPABILITY;
+               /* LCOV_EXCL_STOP */
        }
 
-       *capabilities = private_display->caps_capture.capabilities;
+       capture_module = private_display->capture_module;
+
+       *capabilities = capture_module->caps_capture.capabilities;
 
        _pthread_mutex_unlock(&private_display->lock);
 
@@ -221,9 +643,11 @@ tdm_display_get_capture_capabilities(tdm_display *dpy,
 }
 
 EXTERN tdm_error
-tdm_display_get_catpure_available_formats(tdm_display *dpy,
+tdm_display_get_capture_available_formats(tdm_display *dpy,
                const tbm_format **formats, int *count)
 {
+       tdm_private_module *capture_module;
+
        DISPLAY_FUNC_ENTRY();
 
        TDM_RETURN_VAL_IF_FAIL(formats != NULL, TDM_ERROR_INVALID_PARAMETER);
@@ -231,14 +655,18 @@ tdm_display_get_catpure_available_formats(tdm_display *dpy,
 
        _pthread_mutex_lock(&private_display->lock);
 
-       if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
+       if (!private_display->capture_module) {
+               /* LCOV_EXCL_START */
                TDM_ERR("no capture capability");
                _pthread_mutex_unlock(&private_display->lock);
                return TDM_ERROR_NO_CAPABILITY;
+               /* LCOV_EXCL_STOP */
        }
 
-       *formats = (const tbm_format *)private_display->caps_capture.formats;
-       *count = private_display->caps_capture.format_count;
+       capture_module = private_display->capture_module;
+
+       *formats = (const tbm_format *)capture_module->caps_capture.formats;
+       *count = capture_module->caps_capture.format_count;
 
        _pthread_mutex_unlock(&private_display->lock);
 
@@ -249,26 +677,32 @@ EXTERN tdm_error
 tdm_display_get_capture_available_size(tdm_display *dpy, int *min_w, int *min_h,
                                                                           int *max_w, int *max_h, int *preferred_align)
 {
+       tdm_private_module *capture_module;
+
        DISPLAY_FUNC_ENTRY();
 
        _pthread_mutex_lock(&private_display->lock);
 
-       if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
+       if (!private_display->capture_module) {
+               /* LCOV_EXCL_START */
                TDM_ERR("no capture capability");
                _pthread_mutex_unlock(&private_display->lock);
                return TDM_ERROR_NO_CAPABILITY;
+               /* LCOV_EXCL_STOP */
        }
 
+       capture_module = private_display->capture_module;
+
        if (min_w)
-               *min_w = TDM_FRONT_VALUE(private_display->caps_capture.min_w);
+               *min_w = TDM_FRONT_VALUE(capture_module->caps_capture.min_w);
        if (min_h)
-               *min_h = TDM_FRONT_VALUE(private_display->caps_capture.min_h);
+               *min_h = TDM_FRONT_VALUE(capture_module->caps_capture.min_h);
        if (max_w)
-               *max_w = TDM_FRONT_VALUE(private_display->caps_capture.max_w);
+               *max_w = TDM_FRONT_VALUE(capture_module->caps_capture.max_w);
        if (max_h)
-               *max_h = TDM_FRONT_VALUE(private_display->caps_capture.max_h);
+               *max_h = TDM_FRONT_VALUE(capture_module->caps_capture.max_h);
        if (preferred_align)
-               *preferred_align = TDM_FRONT_VALUE(private_display->caps_capture.preferred_align);
+               *preferred_align = TDM_FRONT_VALUE(capture_module->caps_capture.preferred_align);
 
        _pthread_mutex_unlock(&private_display->lock);
 
@@ -278,22 +712,20 @@ tdm_display_get_capture_available_size(tdm_display *dpy, int *min_w, int *min_h,
 EXTERN tdm_error
 tdm_display_get_max_layer_count(tdm_display *dpy, int *max_count)
 {
-       DISPLAY_FUNC_ENTRY();
-
+       TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
        TDM_RETURN_VAL_IF_FAIL(max_count != NULL, TDM_ERROR_INVALID_PARAMETER);
 
-       _pthread_mutex_lock(&private_display->lock);
-
-       *max_count = TDM_FRONT_VALUE(private_display->caps_display.max_layer_count);
+       TDM_DEPRECATED(NULL);
 
-       _pthread_mutex_unlock(&private_display->lock);
+       *max_count = -1;
 
-       return ret;
+       return TDM_ERROR_NONE;
 }
 
 EXTERN tdm_error
 tdm_display_get_output_count(tdm_display *dpy, int *count)
 {
+       tdm_private_module *private_module = NULL;
        tdm_private_output *private_output = NULL;
 
        DISPLAY_FUNC_ENTRY();
@@ -303,12 +735,10 @@ tdm_display_get_output_count(tdm_display *dpy, int *count)
        _pthread_mutex_lock(&private_display->lock);
 
        *count = 0;
-       LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link)
-       (*count)++;
-
-       if (*count == 0) {
-               _pthread_mutex_unlock(&private_display->lock);
-               return TDM_ERROR_NONE;
+       LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
+               LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
+                       (*count)++;
+               }
        }
 
        _pthread_mutex_unlock(&private_display->lock);
@@ -320,6 +750,7 @@ tdm_display_get_output_count(tdm_display *dpy, int *count)
 EXTERN tdm_output *
 tdm_display_get_output(tdm_display *dpy, int index, tdm_error *error)
 {
+       tdm_private_module *private_module = NULL;
        tdm_private_output *private_output = NULL;
 
        DISPLAY_FUNC_ENTRY_ERROR();
@@ -329,10 +760,12 @@ tdm_display_get_output(tdm_display *dpy, int index, tdm_error *error)
        if (error)
                *error = TDM_ERROR_NONE;
 
-       LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
-               if (private_output->index == index) {
-                       _pthread_mutex_unlock(&private_display->lock);
-                       return private_output;
+       LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
+               LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
+                       if (private_output->index == index) {
+                               _pthread_mutex_unlock(&private_display->lock);
+                               return private_output;
+                       }
                }
        }
 
@@ -341,32 +774,104 @@ tdm_display_get_output(tdm_display *dpy, int index, tdm_error *error)
        return NULL;
 }
 
-EXTERN tdm_error
-tdm_display_get_fd(tdm_display *dpy, int *fd)
+EXTERN tdm_output *
+tdm_display_find_output(tdm_display *dpy, const char *name, tdm_error *error)
 {
-       DISPLAY_FUNC_ENTRY();
+       tdm_private_module *private_module = NULL;
+       tdm_private_output *private_output = NULL;
+       tdm_private_output *mode_setted_output = NULL;
+       tdm_private_output *connected_output = NULL;
+       unsigned int find_primary = 0;
 
-       TDM_RETURN_VAL_IF_FAIL(fd != NULL, TDM_ERROR_INVALID_PARAMETER);
+       DISPLAY_FUNC_ENTRY_ERROR();
+
+       if (!strncasecmp(name, "primary", 7) || !strncasecmp(name, "default", 7))
+               find_primary = 1;
 
        _pthread_mutex_lock(&private_display->lock);
 
-       if (tdm_thread_is_running())
-               *fd = tdm_thread_get_fd(private_display->private_loop);
-       else
-               *fd = tdm_event_loop_get_fd(private_display);
+       if (error)
+               *error = TDM_ERROR_NONE;
 
-       _pthread_mutex_unlock(&private_display->lock);
+       if (find_primary) {
+               LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
+                       LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
+                               if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED && !connected_output)
+                                       connected_output = private_output;
+                               else if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_MODE_SETTED && !mode_setted_output)
+                                       mode_setted_output = private_output;
+                       }
+               }
 
-       return ret;
-}
+               if (mode_setted_output) {
+                       _pthread_mutex_unlock(&private_display->lock);
+                       return mode_setted_output;
+               }
 
-EXTERN tdm_error
-tdm_display_handle_events(tdm_display *dpy)
-{
-       struct pollfd fds;
-       int fd = -1;
+               if (connected_output) {
+                       _pthread_mutex_unlock(&private_display->lock);
+                       return connected_output;
+               }
 
-       DISPLAY_FUNC_ENTRY();
+               LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
+                       LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
+                               if (private_output->index == 0) {
+                                       _pthread_mutex_unlock(&private_display->lock);
+                                       return private_output;
+                               }
+                       }
+               }
+       }
+
+       LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
+               LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
+                       if (strncmp(private_output->caps.model, name, TDM_NAME_LEN))
+                               continue;
+                       _pthread_mutex_unlock(&private_display->lock);
+                       return private_output;
+               }
+       }
+
+       if (private_display->virtual_module) {
+               private_module = private_display->virtual_module;
+               LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
+                       if (strncmp(private_output->name, name, TDM_NAME_LEN))
+                               continue;
+                       _pthread_mutex_unlock(&private_display->lock);
+                       return private_output;
+               }
+       }
+       _pthread_mutex_unlock(&private_display->lock);
+
+       return NULL;
+}
+
+EXTERN tdm_error
+tdm_display_get_fd(tdm_display *dpy, int *fd)
+{
+       DISPLAY_FUNC_ENTRY();
+
+       TDM_RETURN_VAL_IF_FAIL(fd != NULL, TDM_ERROR_INVALID_PARAMETER);
+
+       _pthread_mutex_lock(&private_display->lock);
+
+       if (tdm_thread_is_running())
+               *fd = tdm_thread_get_fd(private_display->private_loop);
+       else
+               *fd = tdm_event_loop_get_fd(private_display);
+
+       _pthread_mutex_unlock(&private_display->lock);
+
+       return ret;
+}
+
+EXTERN tdm_error
+tdm_display_handle_events(tdm_display *dpy)
+{
+       struct pollfd fds;
+       int fd = -1;
+
+       DISPLAY_FUNC_ENTRY();
 
        ret = tdm_display_get_fd(dpy, &fd);
        TDM_RETURN_VAL_IF_FAIL(fd >= 0, ret);
@@ -375,40 +880,68 @@ tdm_display_handle_events(tdm_display *dpy)
        fds.fd = fd;
        fds.revents = 0;
 
-       if (tdm_debug_module & TDM_DEBUG_THREAD)
+       if (tdm_debug_module & TDM_DEBUG_EVENT)
                TDM_INFO("fd(%d) polling in", fd);
 
        while (poll(&fds, 1, -1) < 0) {
+               /* LCOV_EXCL_START */
                if (errno == EINTR || errno == EAGAIN)  /* normal case */
                        continue;
                else {
                        TDM_ERR("poll failed: %m");
                        return TDM_ERROR_OPERATION_FAILED;
                }
+               /* LCOV_EXCL_STOP */
        }
 
-       if (tdm_debug_module & TDM_DEBUG_THREAD)
+       if (tdm_debug_module & TDM_DEBUG_EVENT)
                TDM_INFO("fd(%d) polling out", fd);
 
-       if (tdm_thread_is_running())
+       if (tdm_thread_is_running()) {
+               _pthread_mutex_lock(&private_display->lock);
                ret = tdm_thread_handle_cb(private_display->private_loop);
-       else
+               _pthread_mutex_unlock(&private_display->lock);
+       } else {
                ret = tdm_event_loop_dispatch(private_display);
+       }
 
        return ret;
 }
 
+EXTERN void
+tdm_display_flush(tdm_display *dpy)
+{
+       tdm_private_display *private_display;
+
+       TDM_RETURN_IF_FAIL(dpy != NULL);
+       private_display = (tdm_private_display*)dpy;
+
+       if (tdm_thread_is_running())
+               return;
+
+       tdm_event_loop_flush(private_display);
+}
+
 EXTERN tdm_error
 tdm_display_get_backend_info(tdm_display *dpy, const char **name,
                                                         const char **vendor, int *major, int *minor)
 {
-       tdm_backend_module *module_data;
+       tdm_private_module *private_module = NULL;
+       tdm_backend_module *module_data = NULL;
 
        DISPLAY_FUNC_ENTRY();
 
+       TDM_DEPRECATED("Use tdm_module_get_info");
+
        _pthread_mutex_lock(&private_display->lock);
 
-       module_data = private_display->module_data;
+       /* use first backend */
+       LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
+               module_data = private_module->module_data;
+               break;
+       }
+
+       assert(module_data != NULL);
 
        if (name)
                *name = module_data->name;
@@ -433,7 +966,7 @@ tdm_display_create_pp(tdm_display *dpy, tdm_error *error)
 
        _pthread_mutex_lock(&private_display->lock);
 
-       pp = (tdm_pp *)tdm_pp_create_internal(private_display, error);
+       pp = (tdm_pp *)tdm_pp_create_internal(private_display->pp_module, error);
 
        _pthread_mutex_unlock(&private_display->lock);
 
@@ -441,1589 +974,160 @@ tdm_display_create_pp(tdm_display *dpy, tdm_error *error)
 }
 
 EXTERN tdm_error
-tdm_output_get_model_info(tdm_output *output, const char **maker,
-                                                 const char **model, const char **name)
-{
-       OUTPUT_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (maker)
-               *maker = private_output->caps.maker;
-       if (model)
-               *model = private_output->caps.model;
-       if (name)
-               *name = private_output->caps.name;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_capabilities(tdm_output *output, tdm_output_capability *capabilities)
+tdm_module_get_info(tdm_module *module, const char **name,
+                                       const char **vendor, int *major, int *minor)
 {
-       OUTPUT_FUNC_ENTRY();
+       tdm_backend_module *module_data;
 
-       TDM_RETURN_VAL_IF_FAIL(capabilities != NULL, TDM_ERROR_INVALID_PARAMETER);
+       BACKEND_FUNC_ENTRY();
 
        _pthread_mutex_lock(&private_display->lock);
 
-       *capabilities = private_output->caps.capabilities;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_conn_status(tdm_output *output, tdm_output_conn_status *status)
-{
-       OUTPUT_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(status != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
+       module_data = private_module->module_data;
 
-       *status = private_output->caps.status;
+       if (name)
+               *name = module_data->name;
+       if (vendor)
+               *vendor = module_data->vendor;
+       if (major)
+               *major = TDM_BACKEND_GET_ABI_MAJOR(module_data->abi_version);
+       if (minor)
+               *minor = TDM_BACKEND_GET_ABI_MINOR(module_data->abi_version);
 
        _pthread_mutex_unlock(&private_display->lock);
 
        return ret;
 }
 
-static void
-_tdm_output_update(tdm_output *output_backend, void *user_data)
-{
-       tdm_private_display *private_display;
-       tdm_private_output *private_output = user_data;
-       tdm_error ret;
-
-       TDM_RETURN_IF_FAIL(private_output);
-
-       private_display = private_output->private_display;
-
-       ret = tdm_display_update_output(private_display, output_backend, private_output->pipe);
-       TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
-}
-
-INTERN void
-tdm_output_cb_status(tdm_output *output_backend, tdm_output_conn_status status,
-                                        void *user_data)
-{
-       tdm_private_display *private_display;
-       tdm_private_output *private_output = user_data;
-       tdm_value value;
-
-       TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
-       TDM_RETURN_IF_FAIL(private_output);
-
-       private_display = private_output->private_display;
-
-       if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
-               tdm_thread_cb_output_status output_status;
-               tdm_error ret;
-
-               _tdm_output_update(output_backend, user_data);
-
-               output_status.base.type = TDM_THREAD_CB_OUTPUT_STATUS;
-               output_status.base.length = sizeof output_status;
-               output_status.output_stamp = private_output->stamp;
-               output_status.status = status;
-               output_status.user_data = user_data;
-
-               value.u32 = status;
-               tdm_output_call_change_handler_internal(private_output,
-                                                                                               &private_output->change_handler_list_sub,
-                                                                                               TDM_OUTPUT_CHANGE_CONNECTION,
-                                                                                               value, 0);
-
-               ret = tdm_thread_send_cb(private_display->private_loop, &output_status.base);
-               TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
-
-               return;
-       }
-
-       if (!tdm_thread_is_running())
-               _tdm_output_update(output_backend, user_data);
-
-       value.u32 = status;
-       tdm_output_call_change_handler_internal(private_output,
-                                                                                       &private_output->change_handler_list_main,
-                                                                                       TDM_OUTPUT_CHANGE_CONNECTION,
-                                                                                       value, 0);
-}
-
-EXTERN tdm_error
-tdm_output_add_change_handler(tdm_output *output,
-                                                         tdm_output_change_handler func,
-                                                         void *user_data)
+INTERN int
+tdm_module_check_abi(tdm_private_module *private_module, int abimaj, int abimin)
 {
-       tdm_private_change_handler *change_handler;
-       OUTPUT_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       pthread_mutex_lock(&private_display->lock);
-
-       change_handler = calloc(1, sizeof(tdm_private_change_handler));
-       if (!change_handler) {
-               TDM_ERR("failed: alloc memory");
-               _pthread_mutex_unlock(&private_display->lock);
-               return TDM_ERROR_OUT_OF_MEMORY;
-       }
+       tdm_backend_module *module = private_module->module_data;
 
-       change_handler->private_output = private_output;
-       change_handler->func = func;
-       change_handler->user_data = user_data;
-       change_handler->owner_tid = syscall(SYS_gettid);
+       if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) > abimaj)
+               return 1;
 
-       if (!tdm_thread_in_display_thread(change_handler->owner_tid))
-               LIST_ADD(&change_handler->link, &private_output->change_handler_list_sub);
-       else
-               LIST_ADD(&change_handler->link, &private_output->change_handler_list_main);
+       if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
+               return 0;
 
-       _pthread_mutex_unlock(&private_display->lock);
+       if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
+               return 0;
 
-       return ret;
+       return 1;
 }
 
-EXTERN void
-tdm_output_remove_change_handler(tdm_output *output,
-                                                                tdm_output_change_handler func,
-                                                                void *user_data)
+INTERN tdm_voutput *
+tdm_display_voutput_create(tdm_display *dpy, const char *name, tdm_error *error)
 {
+       tdm_private_module *private_module = NULL;
+       tdm_private_module *current_module = NULL;
+       tdm_private_voutput *private_voutput = NULL;
+       tdm_private_output *private_output = NULL;
+       tdm_func_display *func_display = NULL;
+       tdm_func_voutput *func_voutput = NULL;
+       tdm_voutput *voutput_backend = NULL;
+       tdm_output *output_backend = NULL;
+       int output_find = 0;
        tdm_private_display *private_display;
-       tdm_private_output *private_output;
-       tdm_private_change_handler *h = NULL, *hh = NULL;
-
-       TDM_RETURN_IF_FAIL(output != NULL);
-       TDM_RETURN_IF_FAIL(func != NULL);
+       tdm_error ret = TDM_ERROR_NONE;
 
-       private_output = (tdm_private_output*)output;
-       private_display = private_output->private_display;
+       TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(dpy != NULL, TDM_ERROR_INVALID_PARAMETER, NULL);
+       private_display = (tdm_private_display*)dpy;
+       private_module = private_display->virtual_module;
+       TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(private_module != NULL, TDM_ERROR_BAD_MODULE, NULL);
 
        _pthread_mutex_lock(&private_display->lock);
 
-       LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_main, link) {
-               if (h->func != func || h->user_data != user_data)
-                       continue;
-
-               LIST_DEL(&h->link);
-               free(h);
+       if (error) *error = TDM_ERROR_NONE;
 
+       private_voutput = calloc(1, sizeof(tdm_private_voutput));
+       if (!private_voutput) {
+               if (error) *error = TDM_ERROR_OUT_OF_MEMORY;
                _pthread_mutex_unlock(&private_display->lock);
-
-               return;
+               return NULL;
        }
 
-       LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_sub, link) {
-               if (h->func != func || h->user_data != user_data)
-                       continue;
+       func_display = &private_module->func_display;
+       func_voutput = &private_module->func_voutput;
+       current_module = private_display->current_module;
+       private_display->current_module = private_module;
 
-               LIST_DEL(&h->link);
-               free(h);
+       voutput_backend = func_display->display_voutput_create(private_module->bdata, name, &ret);
 
+       if (voutput_backend == NULL || ret != TDM_ERROR_NONE) {
+               TDM_ERR("display_voutput_create fail");
+               free(private_voutput);
+               if (error) *error = ret;
+               private_display->current_module = current_module;
                _pthread_mutex_unlock(&private_display->lock);
-
-               return;
+               return NULL;
        }
-
-       _pthread_mutex_unlock(&private_display->lock);
-}
-
-EXTERN tdm_error
-tdm_output_get_output_type(tdm_output *output, tdm_output_type *type)
-{
-       OUTPUT_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(type != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *type = private_output->caps.type;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_layer_count(tdm_output *output, int *count)
-{
-       tdm_private_layer *private_layer = NULL;
-
-       OUTPUT_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *count = 0;
-       LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link)
-       (*count)++;
-       if (*count == 0) {
+       private_voutput->voutput_backend = voutput_backend;
+       private_voutput->private_display = private_display;
+       private_voutput->private_module = private_module;
+       LIST_INITHEAD(&private_voutput->voutput_commit_handler_list);
+
+       output_backend = func_voutput->voutput_get_output(voutput_backend, &ret);
+       if (output_backend == NULL || ret != TDM_ERROR_NONE) {
+               TDM_ERR("voutput_get_output fail");
+               free(private_voutput);
+               if (error) *error = ret;
+               if (func_voutput->voutput_destroy)
+                       func_voutput->voutput_destroy(voutput_backend);
+               else
+                       TDM_ERR("no destroy function");
+               private_display->current_module = current_module;
                _pthread_mutex_unlock(&private_display->lock);
-               return TDM_ERROR_NONE;
+               return NULL;
        }
 
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-
-EXTERN tdm_layer *
-tdm_output_get_layer(tdm_output *output, int index, tdm_error *error)
-{
-       tdm_private_layer *private_layer = NULL;
-
-       OUTPUT_FUNC_ENTRY_ERROR();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (error)
-               *error = TDM_ERROR_NONE;
+       ret = tdm_display_update_output(private_display->current_module, output_backend);
+       if (ret != TDM_ERROR_NONE) {
+               TDM_ERR("tdm_display_update_output fail");
+               free(private_voutput);
+               if (func_voutput->voutput_destroy)
+                       func_voutput->voutput_destroy(voutput_backend);
+               else
+                       TDM_ERR("no destroy function");
+               if (error) *error = ret;
+               private_display->current_module = current_module;
+               _pthread_mutex_unlock(&private_display->lock);
+               return NULL;
+       }
 
-       LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
-               if (private_layer->index == index) {
-                       _pthread_mutex_unlock(&private_display->lock);
-                       return private_layer;
+       LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
+               if (private_output->output_backend == output_backend) {
+                       output_find = 1;
+                       break;
                }
        }
 
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return NULL;
-}
-
-EXTERN tdm_error
-tdm_output_get_available_properties(tdm_output *output, const tdm_prop **props,
-                                                                       int *count)
-{
-       OUTPUT_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(props != NULL, TDM_ERROR_INVALID_PARAMETER);
-       TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *props = (const tdm_prop *)private_output->caps.props;
-       *count = private_output->caps.prop_count;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_available_modes(tdm_output *output,
-                                                          const tdm_output_mode **modes, int *count)
-{
-       OUTPUT_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(modes != NULL, TDM_ERROR_INVALID_PARAMETER);
-       TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *modes = (const tdm_output_mode *)private_output->caps.modes;
-       *count = private_output->caps.mode_count;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_available_size(tdm_output *output, int *min_w, int *min_h,
-                                                         int *max_w, int *max_h, int *preferred_align)
-{
-       OUTPUT_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (min_w)
-               *min_w = TDM_FRONT_VALUE(private_output->caps.min_w);
-       if (min_h)
-               *min_h = TDM_FRONT_VALUE(private_output->caps.min_h);
-       if (max_w)
-               *max_w = TDM_FRONT_VALUE(private_output->caps.max_w);
-       if (max_h)
-               *max_h = TDM_FRONT_VALUE(private_output->caps.max_h);
-       if (preferred_align)
-               *preferred_align = TDM_FRONT_VALUE(private_output->caps.preferred_align);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_cursor_available_size(tdm_output *output, int *min_w, int *min_h,
-                                                                        int *max_w, int *max_h, int *preferred_align)
-{
-       OUTPUT_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (!tdm_display_check_module_abi(private_display, 1, 5)) {
+       if (output_find != 1) {
+               private_output = NULL;
+               free(private_voutput);
+               if (func_voutput->voutput_destroy)
+                       func_voutput->voutput_destroy(voutput_backend);
+               else
+                       TDM_ERR("no destroy function");
+               private_voutput = NULL;
+       } else {
+               strncpy(private_voutput->name, name, TDM_NAME_LEN - 1);
+               private_voutput->name[TDM_NAME_LEN - 1] = '\0';
+               strncpy(private_output->name, name, TDM_NAME_LEN - 1);
+               private_output->name[TDM_NAME_LEN - 1] = '\0';
 
-               if (min_w)
-                       *min_w = -1;
-               if (min_h)
-                       *min_h = -1;
-               if (max_w)
-                       *max_w = -1;
-               if (max_h)
-                       *max_h = -1;
-               if (preferred_align)
-                       *preferred_align = -1;
+               private_voutput->private_output = private_output;
+               private_output->private_voutput = private_voutput;
 
-               _pthread_mutex_unlock(&private_display->lock);
+               /* do not use vblank */
+               tdm_output_choose_commit_per_vblank_mode(private_output, 0);
 
-               return TDM_ERROR_BAD_MODULE;
+               LIST_ADDTAIL(&private_voutput->link, &private_module->voutput_list);
        }
 
-       if (min_w)
-               *min_w = TDM_FRONT_VALUE(private_output->caps.cursor_min_w);
-       if (min_h)
-               *min_h = TDM_FRONT_VALUE(private_output->caps.cursor_min_h);
-       if (max_w)
-               *max_w = TDM_FRONT_VALUE(private_output->caps.cursor_max_w);
-       if (max_h)
-               *max_h = TDM_FRONT_VALUE(private_output->caps.cursor_max_h);
-       if (preferred_align)
-               *preferred_align = TDM_FRONT_VALUE(private_output->caps.cursor_preferred_align);
+       private_display->current_module = current_module;
 
        _pthread_mutex_unlock(&private_display->lock);
 
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_physical_size(tdm_output *output, unsigned int *mmWidth,
-                                                        unsigned int *mmHeight)
-{
-       OUTPUT_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (mmWidth)
-               *mmWidth = private_output->caps.mmWidth;
-       if (mmHeight)
-               *mmHeight = private_output->caps.mmHeight;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_subpixel(tdm_output *output, unsigned int *subpixel)
-{
-       OUTPUT_FUNC_ENTRY();
-       TDM_RETURN_VAL_IF_FAIL(subpixel != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *subpixel = private_output->caps.subpixel;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_pipe(tdm_output *output, unsigned int *pipe)
-{
-       OUTPUT_FUNC_ENTRY();
-       TDM_RETURN_VAL_IF_FAIL(pipe != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *pipe = private_output->pipe;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_primary_index(tdm_output *output, int *index)
-{
-       tdm_private_layer *private_layer = NULL;
-
-       OUTPUT_FUNC_ENTRY();
-       TDM_RETURN_VAL_IF_FAIL(index != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
-               if (private_layer->caps.capabilities & TDM_LAYER_CAPABILITY_PRIMARY) {
-                       *index = private_layer->index;
-                       break;
-               }
-       }
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_set_property(tdm_output *output, unsigned int id, tdm_value value)
-{
-       tdm_func_output *func_output;
-       OUTPUT_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_output = &private_display->func_output;
-
-       if (!func_output->output_set_property) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_output->output_set_property(private_output->output_backend, id,
-                                                                                  value);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_property(tdm_output *output, unsigned int id, tdm_value *value)
-{
-       tdm_func_output *func_output;
-       OUTPUT_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(value != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_output = &private_display->func_output;
-
-       if (!func_output->output_get_property) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_output->output_get_property(private_output->output_backend, id,
-                                                                                  value);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-INTERN void
-tdm_output_cb_vblank(tdm_output *output_backend, unsigned int sequence,
-                                        unsigned int tv_sec, unsigned int tv_usec, void *user_data)
-{
-       tdm_private_vblank_handler *vblank_handler = user_data;
-       tdm_private_display *private_display;
-
-       TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
-       TDM_RETURN_IF_FAIL(vblank_handler);
-
-       private_display = vblank_handler->private_output->private_display;
-
-       if (vblank_handler->owner_tid != syscall(SYS_gettid)) {
-               tdm_thread_cb_output_vblank output_vblank;
-               tdm_error ret;
-
-               output_vblank.base.type = TDM_THREAD_CB_OUTPUT_VBLANK;
-               output_vblank.base.length = sizeof output_vblank;
-               output_vblank.output_stamp = vblank_handler->private_output->stamp;
-               output_vblank.sequence = sequence;
-               output_vblank.tv_sec = tv_sec;
-               output_vblank.tv_usec = tv_usec;
-               output_vblank.user_data = user_data;
-
-               ret = tdm_thread_send_cb(private_display->private_loop, &output_vblank.base);
-               TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
-
-               return;
-       }
-
-       if (vblank_handler->owner_tid != syscall(SYS_gettid))
-               TDM_NEVER_GET_HERE();
-
-       if (vblank_handler->func) {
-               _pthread_mutex_unlock(&private_display->lock);
-               vblank_handler->func(vblank_handler->private_output, sequence,
-                                                        tv_sec, tv_usec, vblank_handler->user_data);
-               _pthread_mutex_lock(&private_display->lock);
-       }
-
-       LIST_DEL(&vblank_handler->link);
-       free(vblank_handler);
-}
-
-INTERN void
-tdm_output_cb_commit(tdm_output *output_backend, unsigned int sequence,
-                                        unsigned int tv_sec, unsigned int tv_usec, void *user_data)
-{
-       tdm_private_commit_handler *commit_handler = user_data;
-       tdm_private_display *private_display;
-       tdm_private_output *private_output;
-       tdm_private_layer *private_layer = NULL;
-
-       TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
-       TDM_RETURN_IF_FAIL(commit_handler);
-
-       private_output = commit_handler->private_output;
-       private_display = private_output->private_display;
-
-       if (commit_handler->owner_tid != syscall(SYS_gettid)) {
-               tdm_thread_cb_output_commit output_commit;
-               tdm_error ret;
-
-               output_commit.base.type = TDM_THREAD_CB_OUTPUT_COMMIT;
-               output_commit.base.length = sizeof output_commit;
-               output_commit.output_stamp = private_output->stamp;
-               output_commit.sequence = sequence;
-               output_commit.tv_sec = tv_sec;
-               output_commit.tv_usec = tv_usec;
-               output_commit.user_data = user_data;
-
-               ret = tdm_thread_send_cb(private_display->private_loop, &output_commit.base);
-               TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
-
-               return;
-       }
-
-       LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
-               if (!private_layer->waiting_buffer)
-                       continue;
-
-               if (private_layer->showing_buffer) {
-                       _pthread_mutex_unlock(&private_display->lock);
-                       tdm_buffer_unref_backend(private_layer->showing_buffer);
-                       _pthread_mutex_lock(&private_display->lock);
-
-                       if (private_layer->buffer_queue) {
-                               _pthread_mutex_unlock(&private_display->lock);
-                               tbm_surface_queue_release(private_layer->buffer_queue,
-                                                                                 private_layer->showing_buffer);
-                               _pthread_mutex_lock(&private_display->lock);
-                       }
-               }
-
-               private_layer->showing_buffer = private_layer->waiting_buffer;
-               private_layer->waiting_buffer = NULL;
-
-               if (tdm_debug_module & TDM_DEBUG_BUFFER)
-                       TDM_INFO("layer(%p) waiting_buffer(%p) showing_buffer(%p)",
-                                        private_layer, private_layer->waiting_buffer,
-                                        private_layer->showing_buffer);
-       }
-
-       if (commit_handler->func) {
-               _pthread_mutex_unlock(&private_display->lock);
-               commit_handler->func(private_output, sequence,
-                                                        tv_sec, tv_usec, commit_handler->user_data);
-               _pthread_mutex_lock(&private_display->lock);
-       }
-
-       LIST_DEL(&commit_handler->link);
-       free(commit_handler);
-}
-
-EXTERN tdm_error
-tdm_output_wait_vblank(tdm_output *output, int interval, int sync,
-                                          tdm_output_vblank_handler func, void *user_data)
-{
-       tdm_func_output *func_output;
-       tdm_private_vblank_handler *vblank_handler;
-       OUTPUT_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (private_output->current_dpms_value > TDM_OUTPUT_DPMS_ON) {
-               TDM_WRN("output(%d) dpms: %s", private_output->pipe,
-                               tdm_dpms_str(private_output->current_dpms_value));
-               _pthread_mutex_unlock(&private_display->lock);
-               return TDM_ERROR_DPMS_OFF;
-       }
-
-       func_output = &private_display->func_output;
-
-       if (!func_output->output_wait_vblank) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       vblank_handler = calloc(1, sizeof(tdm_private_vblank_handler));
-       if (!vblank_handler) {
-               TDM_ERR("failed: alloc memory");
-               _pthread_mutex_unlock(&private_display->lock);
-               return TDM_ERROR_OUT_OF_MEMORY;
-       }
-
-       LIST_ADD(&vblank_handler->link, &private_output->vblank_handler_list);
-       vblank_handler->private_output = private_output;
-       vblank_handler->func = func;
-       vblank_handler->user_data = user_data;
-       vblank_handler->owner_tid = syscall(SYS_gettid);
-
-       ret = func_output->output_wait_vblank(private_output->output_backend, interval,
-                                                                                 sync, vblank_handler);
-       if (ret != TDM_ERROR_NONE) {
-               _pthread_mutex_unlock(&private_display->lock);
-               return ret;
-       }
-
-       if (!private_output->regist_vblank_cb) {
-               private_output->regist_vblank_cb = 1;
-               ret = func_output->output_set_vblank_handler(private_output->output_backend,
-                               tdm_output_cb_vblank);
-       }
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-static tdm_error
-_tdm_output_commit(tdm_output *output, int sync, tdm_output_commit_handler func,
-                                  void *user_data)
-{
-       tdm_func_output *func_output;
-       tdm_private_commit_handler *commit_handler;
-       OUTPUT_FUNC_ENTRY();
-
-       func_output = &private_display->func_output;
-
-       if (!func_output->output_commit) {
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       commit_handler = calloc(1, sizeof(tdm_private_commit_handler));
-       if (!commit_handler) {
-               TDM_ERR("failed: alloc memory");
-               return TDM_ERROR_OUT_OF_MEMORY;
-       }
-
-       LIST_ADD(&commit_handler->link, &private_output->commit_handler_list);
-       commit_handler->private_output = private_output;
-       commit_handler->func = func;
-       commit_handler->user_data = user_data;
-       commit_handler->owner_tid = syscall(SYS_gettid);
-
-       if (!private_output->regist_commit_cb) {
-               private_output->regist_commit_cb = 1;
-               ret = func_output->output_set_commit_handler(private_output->output_backend,
-                               tdm_output_cb_commit);
-       }
-
-       ret = func_output->output_commit(private_output->output_backend, sync,
-                                                                        commit_handler);
-       TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_commit(tdm_output *output, int sync, tdm_output_commit_handler func,
-                                 void *user_data)
-{
-       OUTPUT_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (private_output->current_dpms_value > TDM_OUTPUT_DPMS_ON) {
-               TDM_ERR("output(%d) dpms: %s", private_output->pipe,
-                               tdm_dpms_str(private_output->current_dpms_value));
-               _pthread_mutex_unlock(&private_display->lock);
-               return TDM_ERROR_DPMS_OFF;
-       }
-
-       ret = _tdm_output_commit(output, sync, func, user_data);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_set_mode(tdm_output *output, const tdm_output_mode *mode)
-{
-       tdm_func_output *func_output;
-       OUTPUT_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(mode != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_output = &private_display->func_output;
-
-       if (!func_output->output_set_mode) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_output->output_set_mode(private_output->output_backend, mode);
-       if (ret == TDM_ERROR_NONE)
-               private_output->current_mode = mode;
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_mode(tdm_output *output, const tdm_output_mode **mode)
-{
-       OUTPUT_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(mode != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *mode = private_output->current_mode;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-static tdm_error
-_tdm_output_dpms_changed_timeout(void *user_data)
-{
-       tdm_private_output *private_output = user_data;
-       tdm_value value;
-
-       value.u32 = private_output->current_dpms_value;
-       tdm_output_call_change_handler_internal(private_output,
-                                                                                       &private_output->change_handler_list_sub,
-                                                                                       TDM_OUTPUT_CHANGE_DPMS,
-                                                                                       value, 0);
-
-       return TDM_ERROR_NONE;
-}
-
-INTERN void
-tdm_output_cb_dpms(tdm_output *output_backend, tdm_output_dpms dpms, void *user_data)
-{
-       tdm_private_display *private_display;
-       tdm_private_output *private_output = user_data;
-       tdm_value value;
-
-       TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
-       TDM_RETURN_IF_FAIL(private_output);
-
-       private_display = private_output->private_display;
-
-       if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
-               tdm_thread_cb_output_dpms output_dpms;
-               tdm_error ret;
-
-               _tdm_output_update(output_backend, user_data);
-
-               output_dpms.base.type = TDM_THREAD_CB_OUTPUT_DPMS;
-               output_dpms.base.length = sizeof output_dpms;
-               output_dpms.output_stamp = private_output->stamp;
-               output_dpms.dpms = dpms;
-               output_dpms.user_data = user_data;
-
-               value.u32 = dpms;
-               tdm_output_call_change_handler_internal(private_output,
-                                                                                               &private_output->change_handler_list_sub,
-                                                                                               TDM_OUTPUT_CHANGE_DPMS,
-                                                                                               value, 0);
-
-               ret = tdm_thread_send_cb(private_display->private_loop, &output_dpms.base);
-               TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
-
-               return;
-       }
-
-       private_output->current_dpms_value = dpms;
-
-       value.u32 = dpms;
-       tdm_output_call_change_handler_internal(private_output,
-                                                                                       &private_output->change_handler_list_main,
-                                                                                       TDM_OUTPUT_CHANGE_DPMS,
-                                                                                       value, 0);
-}
-
-EXTERN tdm_error
-tdm_output_set_dpms(tdm_output *output, tdm_output_dpms dpms_value)
-{
-       tdm_func_output *func_output;
-       OUTPUT_FUNC_ENTRY();
-
-       if (dpms_value > TDM_OUTPUT_DPMS_OFF)
-               dpms_value = TDM_OUTPUT_DPMS_OFF;
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (private_output->current_dpms_value == dpms_value) {
-               _pthread_mutex_unlock(&private_display->lock);
-               return TDM_ERROR_NONE;
-       }
-
-       /** Use timer to call the output change callback of the sub-thread.
-        * The output change callback of tdm_server and tdm_vblank was called
-        * in the main thread. And it made the multi thread issue. If we use
-        * the timer, we can call the sub-thread's output change callback in
-        * sub-thread.
-        */
-       if (!private_output->dpms_changed_timer) {
-               private_output->dpms_changed_timer =
-                       tdm_event_loop_add_timer_handler(private_output->private_display,
-                               _tdm_output_dpms_changed_timeout, private_output, NULL);
-               if (!private_output->dpms_changed_timer) {
-                       TDM_ERR("can't create dpms timer!!");
-                       _pthread_mutex_unlock(&private_display->lock);
-                       return TDM_ERROR_OUT_OF_MEMORY;
-               }
-       }
-
-       func_output = &private_display->func_output;
-
-       if (!func_output->output_set_dpms) {
-               _pthread_mutex_unlock(&private_display->lock);
-               private_output->current_dpms_value = dpms_value;
-               TDM_WRN("not implemented!!");
-               return TDM_ERROR_NONE;
-       }
-
-       if (func_output->output_set_dpms_handler) {
-               if (!private_output->regist_dpms_cb) {
-                       private_output->regist_dpms_cb = 1;
-                       ret = func_output->output_set_dpms_handler(private_output->output_backend,
-                                                                                                          tdm_output_cb_dpms, private_output);
-               }
-       }
-
-       ret = func_output->output_set_dpms(private_output->output_backend, dpms_value);
-
-       if (ret == TDM_ERROR_NONE && !func_output->output_set_dpms_handler) {
-               tdm_value value;
-
-               private_output->current_dpms_value = dpms_value;
-
-               value.u32 = dpms_value;
-               tdm_output_call_change_handler_internal(private_output,
-                                                                                               &private_output->change_handler_list_main,
-                                                                                               TDM_OUTPUT_CHANGE_DPMS,
-                                                                                               value, 0);
-
-               if (!LIST_IS_EMPTY(&private_output->change_handler_list_sub)) {
-                       ret = tdm_event_loop_source_timer_update(private_output->dpms_changed_timer, 1);
-                       if (ret != TDM_ERROR_NONE)
-                               TDM_NEVER_GET_HERE();
-               }
-       }
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_output_get_dpms(tdm_output *output, tdm_output_dpms *dpms_value)
-{
-       tdm_func_output *func_output;
-       OUTPUT_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(dpms_value != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_output = &private_display->func_output;
-
-       if (!func_output->output_get_dpms) {
-               *dpms_value = private_output->current_dpms_value;
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_WRN("not implemented!!");
-               return TDM_ERROR_NONE;
-       }
-
-       ret = func_output->output_get_dpms(private_output->output_backend, dpms_value);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_capture *
-tdm_output_create_capture(tdm_output *output, tdm_error *error)
-{
-       tdm_capture *capture = NULL;
-
-       OUTPUT_FUNC_ENTRY_ERROR();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       capture = (tdm_capture *)tdm_capture_create_output_internal(private_output, error);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return capture;
-}
-
-INTERN void
-tdm_output_call_change_handler_internal(tdm_private_output *private_output,
-                                                                               struct list_head *change_handler_list,
-                                                                               tdm_output_change_type type,
-                                                                               tdm_value value,
-                                                                               int no_check_thread_id)
-{
-       tdm_private_display *private_display;
-       tdm_private_change_handler *change_handler = NULL;
-
-       TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
-       TDM_RETURN_IF_FAIL(private_output);
-
-       private_display = private_output->private_display;
-       if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
-               if (type & TDM_OUTPUT_CHANGE_CONNECTION)
-                       TDM_INFO("output(%d) changed: %s (%d)",
-                                        private_output->pipe, tdm_status_str(value.u32), value.u32);
-               if (type & TDM_OUTPUT_CHANGE_DPMS)
-                       TDM_INFO("output(%d) changed: dpms %s (%d)",
-                                        private_output->pipe, tdm_dpms_str(value.u32), value.u32);
-       }
-
-       if (LIST_IS_EMPTY(change_handler_list))
-               return;
-
-       LIST_FOR_EACH_ENTRY(change_handler, change_handler_list, link) {
-               if (!no_check_thread_id && change_handler->owner_tid != syscall(SYS_gettid))
-                       TDM_NEVER_GET_HERE();
-
-               _pthread_mutex_unlock(&private_display->lock);
-               change_handler->func(private_output, type,
-                                                        value, change_handler->user_data);
-               _pthread_mutex_lock(&private_display->lock);
-       }
-}
-
-EXTERN tdm_error
-tdm_layer_get_capabilities(tdm_layer *layer, tdm_layer_capability *capabilities)
-{
-       LAYER_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(capabilities != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *capabilities = private_layer->caps.capabilities;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_get_available_formats(tdm_layer *layer, const tbm_format **formats, int *count)
-{
-       LAYER_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(formats != NULL, TDM_ERROR_INVALID_PARAMETER);
-       TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *formats = (const tbm_format *)private_layer->caps.formats;
-       *count = private_layer->caps.format_count;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_get_available_properties(tdm_layer *layer, const tdm_prop **props, int *count)
-{
-       LAYER_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(props != NULL, TDM_ERROR_INVALID_PARAMETER);
-       TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *props = (const tdm_prop *)private_layer->caps.props;
-       *count = private_layer->caps.prop_count;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_get_zpos(tdm_layer *layer, int *zpos)
-{
-       LAYER_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(zpos != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *zpos = private_layer->caps.zpos;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_set_property(tdm_layer *layer, unsigned int id, tdm_value value)
-{
-       tdm_func_layer *func_layer;
-       LAYER_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_layer = &private_display->func_layer;
-
-       if (private_layer->usable)
-               TDM_INFO("layer(%p) not usable", private_layer);
-
-       private_layer->usable = 0;
-
-       if (!func_layer->layer_set_property) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_layer->layer_set_property(private_layer->layer_backend, id, value);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_get_property(tdm_layer *layer, unsigned int id, tdm_value *value)
-{
-       tdm_func_layer *func_layer;
-       LAYER_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(value != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_layer = &private_display->func_layer;
-
-       if (!func_layer->layer_get_property) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_layer->layer_get_property(private_layer->layer_backend, id, value);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_set_info(tdm_layer *layer, tdm_info_layer *info)
-{
-       tdm_func_layer *func_layer;
-       char fmtstr[128];
-
-       LAYER_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(info != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_layer = &private_display->func_layer;
-
-       if (private_layer->usable)
-               TDM_INFO("layer(%p) not usable", private_layer);
-
-       private_layer->usable = 0;
-
-       if (!func_layer->layer_set_info) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       if (info->src_config.format)
-               snprintf(fmtstr, 128, "%c%c%c%c", FOURCC_STR(info->src_config.format));
-       else
-               snprintf(fmtstr, 128, "NONE");
-
-       TDM_INFO("layer(%p) info: src(%dx%d %d,%d %dx%d %s) dst(%d,%d %dx%d) trans(%d)",
-                        private_layer, info->src_config.size.h, info->src_config.size.v,
-                        info->src_config.pos.x, info->src_config.pos.y,
-                        info->src_config.pos.w, info->src_config.pos.h,
-                        fmtstr,
-                        info->dst_pos.x, info->dst_pos.y,
-                        info->dst_pos.w, info->dst_pos.h,
-                        info->transform);
-
-       ret = func_layer->layer_set_info(private_layer->layer_backend, info);
-       TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_get_info(tdm_layer *layer, tdm_info_layer *info)
-{
-       tdm_func_layer *func_layer;
-       LAYER_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(info != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_layer = &private_display->func_layer;
-
-       if (!func_layer->layer_get_info) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_layer->layer_get_info(private_layer->layer_backend, info);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-static void
-_tdm_layer_dump_buffer(tdm_layer *layer, tbm_surface_h buffer)
-{
-       tdm_private_layer *private_layer = (tdm_private_layer*)layer;
-       tdm_private_output *private_output = private_layer->private_output;
-       unsigned int pipe;
-       int zpos;
-       char fname[PATH_MAX];
-
-       pipe = private_output->pipe;
-       zpos = private_layer->caps.zpos;
-
-       snprintf(fname, sizeof(fname), "tdm_%d_lyr_%d", pipe, zpos);
-
-       tbm_surface_internal_dump_buffer(buffer, fname);
-       TDM_DBG("%s dump excute", fname);
-
-       return;
-}
-
-EXTERN tdm_error
-tdm_layer_set_buffer(tdm_layer *layer, tbm_surface_h buffer)
-{
-       tdm_func_layer *func_layer;
-
-       LAYER_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (tdm_debug_dump & TDM_DUMP_FLAG_LAYER &&
-               !(private_layer->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)) {
-               char str[TDM_PATH_LEN];
-               static int i;
-               snprintf(str, TDM_PATH_LEN, "layer_%d_%d_%03d",
-                                private_output->index, private_layer->index, i++);
-               tdm_helper_dump_buffer_str(buffer, tdm_debug_dump_dir, str);
-       }
-
-       func_layer = &private_display->func_layer;
-
-       if (private_layer->usable)
-               TDM_INFO("layer(%p) not usable", private_layer);
-
-       private_layer->usable = 0;
-
-       if (!func_layer->layer_set_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_layer->layer_set_buffer(private_layer->layer_backend, buffer);
-       TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
-
-       /* dump buffer */
-       if (tdm_dump_enable && !(private_layer->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO))
-               _tdm_layer_dump_buffer(layer, buffer);
-
-       if (ret == TDM_ERROR_NONE) {
-               /* FIXME: should save to pending_buffer first. And after committing
-                * successfully, need to move to waiting_buffer.
-                */
-               if (private_layer->waiting_buffer) {
-                       _pthread_mutex_unlock(&private_display->lock);
-                       tdm_buffer_unref_backend(private_layer->waiting_buffer);
-                       _pthread_mutex_lock(&private_display->lock);
-               }
-
-               private_layer->waiting_buffer = tdm_buffer_ref_backend(buffer);
-               if (tdm_debug_module & TDM_DEBUG_BUFFER)
-                       TDM_INFO("layer(%p) waiting_buffer(%p)",
-                                        private_layer, private_layer->waiting_buffer);
-       }
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_unset_buffer(tdm_layer *layer)
-{
-       tdm_func_layer *func_layer;
-       LAYER_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_layer = &private_display->func_layer;
-
-       if (private_layer->waiting_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               tdm_buffer_unref_backend(private_layer->waiting_buffer);
-               _pthread_mutex_lock(&private_display->lock);
-               private_layer->waiting_buffer = NULL;
-
-               if (tdm_debug_module & TDM_DEBUG_BUFFER)
-                       TDM_INFO("layer(%p) waiting_buffer(%p)",
-                                        private_layer, private_layer->waiting_buffer);
-       }
-
-       if (private_layer->showing_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               tdm_buffer_unref_backend(private_layer->showing_buffer);
-               _pthread_mutex_lock(&private_display->lock);
-               private_layer->showing_buffer = NULL;
-
-               if (tdm_debug_module & TDM_DEBUG_BUFFER)
-                       TDM_INFO("layer(%p) showing_buffer(%p)",
-                                        private_layer, private_layer->showing_buffer);
-       }
-
-       private_layer->usable = 1;
-
-       if (private_layer->usable)
-               TDM_INFO("layer(%p) now usable", private_layer);
-
-       if (!func_layer->layer_unset_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_layer->layer_unset_buffer(private_layer->layer_backend);
-       TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tbm_surface_h
-tdm_layer_get_displaying_buffer(tdm_layer *layer, tdm_error *error)
-{
-       tbm_surface_h buffer;
-       LAYER_FUNC_ENTRY_ERROR();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (error)
-               *error = TDM_ERROR_NONE;
-
-       if (private_layer->showing_buffer) {
-               buffer = private_layer->showing_buffer;
-       } else {
-               if (error)
-                       *error = TDM_ERROR_OPERATION_FAILED;
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_DBG("layer(%p) showing_buffer is null", private_layer);
-               return NULL;
-       }
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return buffer;
-}
-
-static void
-_tbm_layer_queue_acquirable_cb(tbm_surface_queue_h surface_queue, void *data)
-{
-       TDM_RETURN_IF_FAIL(data != NULL);
-       tdm_layer *layer = data;
-       tdm_func_layer *func_layer;
-       tbm_surface_h surface = NULL;
-       LAYER_FUNC_ENTRY_VOID_RETURN();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_layer = &private_display->func_layer;
-       if (!func_layer->layer_set_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               return;
-       }
-
-       if (TBM_SURFACE_QUEUE_ERROR_NONE != tbm_surface_queue_acquire(private_layer->buffer_queue, &surface) ||
-               surface == NULL) {
-               TDM_ERR("layer(%p) tbm_surface_queue_acquire() failed surface:%p",
-                               private_layer, surface);
-               _pthread_mutex_unlock(&private_display->lock);
-               return;
-       }
-
-       ret = func_layer->layer_set_buffer(private_layer->layer_backend, surface);
-       TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
-
-       if (ret == TDM_ERROR_NONE) {
-               if (private_layer->waiting_buffer) {
-                       TDM_DBG("layer(%p) drop waiting_buffer(%p)", private_layer, private_layer->waiting_buffer);
-                       _pthread_mutex_unlock(&private_display->lock);
-                       tdm_buffer_unref_backend(private_layer->waiting_buffer);
-                       tbm_surface_queue_release(private_layer->buffer_queue,
-                                                                         private_layer->waiting_buffer);
-                       _pthread_mutex_lock(&private_display->lock);
-               }
-
-               private_layer->waiting_buffer = tdm_buffer_ref_backend(surface);
-
-               if (tdm_debug_module & TDM_DEBUG_BUFFER)
-                       TDM_INFO("layer(%p) waiting_buffer(%p)",
-                                        private_layer, private_layer->waiting_buffer);
-
-               ret = _tdm_output_commit(private_layer->private_output, 0, NULL, NULL);
-               if (ret != TDM_ERROR_NONE)
-                       TDM_ERR("layer(%p) _tdm_output_commit() is fail", private_layer);
-       }
-
-       _pthread_mutex_unlock(&private_display->lock);
-}
-
-static void
-_tbm_layer_queue_destroy_cb(tbm_surface_queue_h surface_queue, void *data)
-{
-       TDM_RETURN_IF_FAIL(data != NULL);
-       tdm_layer *layer = data;
-       LAYER_FUNC_ENTRY_VOID_RETURN();
-       TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       if (private_layer->waiting_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               tdm_buffer_unref_backend(private_layer->waiting_buffer);
-               tbm_surface_queue_release(private_layer->buffer_queue,
-                                                                 private_layer->waiting_buffer);
-               _pthread_mutex_lock(&private_display->lock);
-       }
-
-       private_layer->buffer_queue = NULL;
-
-       _pthread_mutex_unlock(&private_display->lock);
-}
-
-EXTERN tdm_error
-tdm_layer_set_buffer_queue(tdm_layer *layer, tbm_surface_queue_h buffer_queue)
-{
-       tdm_func_layer *func_layer;
-       LAYER_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(buffer_queue != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_layer = &private_display->func_layer;
-
-       if (private_layer->usable)
-               TDM_INFO("layer(%p) not usable", private_layer);
-
-       private_layer->usable = 0;
-
-       if (!func_layer->layer_set_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       if (buffer_queue == private_layer->buffer_queue) {
-               _pthread_mutex_unlock(&private_display->lock);
-               return TDM_ERROR_NONE;
-       }
-
-       if (private_layer->waiting_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               tdm_buffer_unref_backend(private_layer->waiting_buffer);
-               tbm_surface_queue_release(private_layer->buffer_queue,
-                                                                 private_layer->waiting_buffer);
-               private_layer->waiting_buffer = NULL;
-               _pthread_mutex_lock(&private_display->lock);
-
-               if (tdm_debug_module & TDM_DEBUG_BUFFER)
-                       TDM_INFO("layer(%p) waiting_buffer(%p)",
-                                        private_layer, private_layer->waiting_buffer);
-       }
-
-       private_layer->buffer_queue = buffer_queue;
-       tbm_surface_queue_add_acquirable_cb(private_layer->buffer_queue,
-                                                                               _tbm_layer_queue_acquirable_cb,
-                                                                               layer);
-       tbm_surface_queue_add_destroy_cb(private_layer->buffer_queue,
-                                                                        _tbm_layer_queue_destroy_cb,
-                                                                        layer);
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_unset_buffer_queue(tdm_layer *layer)
-{
-       tdm_func_layer *func_layer;
-       LAYER_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_layer = &private_display->func_layer;
-
-       if (private_layer->waiting_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               tdm_buffer_unref_backend(private_layer->waiting_buffer);
-               tbm_surface_queue_release(private_layer->buffer_queue,
-                                                                 private_layer->waiting_buffer);
-               private_layer->waiting_buffer = NULL;
-               _pthread_mutex_lock(&private_display->lock);
-
-               if (tdm_debug_module & TDM_DEBUG_BUFFER)
-                       TDM_INFO("layer(%p) waiting_buffer(%p)",
-                                        private_layer, private_layer->waiting_buffer);
-       }
-
-       if (private_layer->showing_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               tdm_buffer_unref_backend(private_layer->showing_buffer);
-               tbm_surface_queue_release(private_layer->buffer_queue,
-                                                                 private_layer->showing_buffer);
-               _pthread_mutex_lock(&private_display->lock);
-               private_layer->showing_buffer = NULL;
-
-               if (tdm_debug_module & TDM_DEBUG_BUFFER)
-                       TDM_INFO("layer(%p) showing_buffer(%p)",
-                                        private_layer, private_layer->showing_buffer);
-       }
-
-       tbm_surface_queue_remove_acquirable_cb(private_layer->buffer_queue, _tbm_layer_queue_acquirable_cb, layer);
-       tbm_surface_queue_remove_destroy_cb(private_layer->buffer_queue, _tbm_layer_queue_destroy_cb, layer);
-       private_layer->buffer_queue = NULL;
-       private_layer->usable = 1;
-
-       if (private_layer->usable)
-               TDM_INFO("layer(%p) now usable", private_layer);
-
-       if (!func_layer->layer_unset_buffer) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_layer->layer_unset_buffer(private_layer->layer_backend);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_is_usable(tdm_layer *layer, unsigned int *usable)
-{
-       LAYER_FUNC_ENTRY();
-
-       TDM_RETURN_VAL_IF_FAIL(usable != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       *usable = private_layer->usable;
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_error
-tdm_layer_set_video_pos(tdm_layer *layer, int zpos)
-{
-       tdm_func_layer *func_layer;
-       LAYER_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_layer = &private_display->func_layer;
-
-       if (!(private_layer->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)) {
-               TDM_ERR("layer(%p) is not video layer", private_layer);
-               _pthread_mutex_unlock(&private_display->lock);
-               return TDM_ERROR_INVALID_PARAMETER;
-       }
-
-       if (!func_layer->layer_set_video_pos) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_layer->layer_set_video_pos(private_layer->layer_backend, zpos);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
-}
-
-EXTERN tdm_capture *
-tdm_layer_create_capture(tdm_layer *layer, tdm_error *error)
-{
-       tdm_capture *capture = NULL;
-
-       LAYER_FUNC_ENTRY_ERROR();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       capture = (tdm_capture *)tdm_capture_create_layer_internal(private_layer, error);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return capture;
-}
-
-EXTERN tdm_error
-tdm_layer_get_buffer_flags(tdm_layer *layer, unsigned int *flags)
-{
-       tdm_func_layer *func_layer;
-       LAYER_FUNC_ENTRY();
-
-       _pthread_mutex_lock(&private_display->lock);
-
-       func_layer = &private_display->func_layer;
-
-       if (!func_layer->layer_get_buffer_flags) {
-               _pthread_mutex_unlock(&private_display->lock);
-               TDM_ERR("not implemented!!");
-               return TDM_ERROR_NOT_IMPLEMENTED;
-       }
-
-       ret = func_layer->layer_get_buffer_flags(private_layer->layer_backend, flags);
-
-       _pthread_mutex_unlock(&private_display->lock);
-
-       return ret;
+       return private_voutput;
 }