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GB28181Device/media/xcb_util.cpp

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+/***************************************************************************************
+ *
+ *  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+ *
+ *  By downloading, copying, installing or using the software you agree to this license.
+ *  If you do not agree to this license, do not download, install, 
+ *  copy or use the software.
+ *
+ *  Copyright (C) 2014-2022, Happytimesoft Corporation, all rights reserved.
+ *
+ *  Redistribution and use in binary forms, with or without modification, are permitted.
+ *
+ *  Unless required by applicable law or agreed to in writing, software distributed 
+ *  under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ *  CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
+ *  language governing permissions and limitations under the License.
+ *
+****************************************************************************************/
+
+#include "sys_inc.h"
+#include "xcb_util.h"
+
+xcb_screen_t * xcb_get_screen(const xcb_setup_t *setup, int screen_num)
+{
+    xcb_screen_iterator_t it = xcb_setup_roots_iterator(setup);
+    xcb_screen_t *screen     = NULL;
+
+    for (; it.rem > 0; xcb_screen_next(&it)) 
+    {
+        if (!screen_num) 
+        {
+            screen = it.data;
+            break;
+        }
+
+        screen_num--;
+    }
+
+    return screen;
+}
+
+xcb_atom_t xcb_get_atom(xcb_connection_t * c, const char * atom_name)
+{
+    xcb_atom_t atom;
+    xcb_intern_atom_cookie_t cookie;
+    xcb_intern_atom_reply_t *reply;
+    
+    cookie = xcb_intern_atom(c, false, strlen(atom_name), atom_name);
+    reply = xcb_intern_atom_reply(c, cookie, NULL);
+    if (NULL != reply)
+    {
+        atom = reply->atom;
+        free(reply);
+        return atom;
+    }
+    
+    return 0;
+}
+
+