list icc profiles

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 212 insertions, 0 deletions

diff --git a/src/blueshift_iccprofile.c b/src/blueshift_iccprofile.c
new file mode 100644
index 0000000..152b547
--- /dev/null
+++ b/src/blueshift_iccprofile.c
@@ -0,0 +1,212 @@
+/**
+ * Copyright © 2014  Mattias Andrée (maandree@member.fsf.org)
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#define _GNU_SOURCE /* for strcasestr */
+#include <stdlib.h>
+#include <stdio.h>
+#include <alloca.h>
+#include <string.h>
+
+#include <xcb/xcb.h>
+
+
+
+/**
+ * Connection to the X server
+ */
+static xcb_connection_t* connection;
+
+/**
+ * Used to store errors in
+ */
+static xcb_generic_error_t* error;
+
+
+
+/**
+ * Main entry point of the program
+ * 
+ * @param   argc  Length of `argv`
+ * @param   argv  Command line arguments
+ * @return        Zero on success
+ */
+int main(int argc, char** argv)
+{
+  const xcb_setup_t* setup;
+  xcb_screen_iterator_t iter;
+  int screen_count;
+  xcb_screen_t* screens;
+  int screen_i;
+  
+  (void) argc;
+  (void) argv;
+  
+  
+  /* Get X connection */
+  
+  connection = xcb_connect(NULL, NULL);
+  
+  
+  /* Get screen information */
+  
+  setup = xcb_get_setup(connection);
+  iter = xcb_setup_roots_iterator(setup);
+  screen_count = iter.rem;
+  screens = iter.data;
+  
+  for (screen_i = 0; screen_i < screen_count; screen_i++)
+    {
+      xcb_screen_t* screen = screens + screen_i;
+      xcb_list_properties_cookie_t list_cookie;
+      xcb_list_properties_reply_t* list_reply;
+      xcb_atom_t* atoms;
+      xcb_atom_t* atoms_end;
+      
+      
+      /* Get root window properties */
+      
+      list_cookie = xcb_list_properties(connection, screen->root);
+      list_reply = xcb_list_properties_reply(connection, list_cookie, &error);
+      
+      if (error)
+	{
+	  fprintf(stderr, "Screen root window property list query returned %i\n", error->error_code);
+	  xcb_disconnect(connection);
+	  return 1;
+	}
+      
+      atoms = xcb_list_properties_atoms(list_reply);
+      atoms_end = atoms + xcb_list_properties_atoms_length(list_reply);
+      
+      for (; atoms != atoms_end; atoms++)
+	{
+	  xcb_get_atom_name_cookie_t name_cookie;
+	  xcb_get_atom_name_reply_t* name_reply;
+	  char* name;
+	  char* name_;
+	  int len;
+	  xcb_get_property_cookie_t prop_cookie;
+	  xcb_get_property_reply_t* prop_reply;
+	  int monitor;
+	  
+	  
+	  /* Get root window property name */
+	  
+	  name_cookie = xcb_get_atom_name(connection, *atoms);
+	  name_reply = xcb_get_atom_name_reply(connection, name_cookie, &error);
+	  
+	  if (error)
+	    {
+	      fprintf(stderr, "Screen root window property name query returned %i\n", error->error_code);
+	      free(list_reply);
+	      xcb_disconnect(connection);
+	      return 1;
+	    }
+	  
+	  name_ = xcb_get_atom_name_name(name_reply);
+	  len = xcb_get_atom_name_name_length(name_reply);
+	  
+	  name = alloca((len + 1) * sizeof(char));
+	  memcpy(name, name_, len * sizeof(char));
+	  *(name + len) = 0;
+	  free(name_reply);
+	  
+	  
+	  /* Check property name pattern */
+	  
+	  if (!strcmp(name, "_icc_profile"))
+	    monitor = 0;
+	  else if (strcasestr(name, "_icc_profile_") == name)
+	    {
+	      name += strlen("_icc_profile_");
+	      monitor = 0;
+	      if (*name)
+		continue;
+	      while (*name)
+		{
+		  char c = *name;
+		  if (('0' <= c) && (c <= '9'))
+		    monitor = monitor * 10 - (c & 15);
+		  else
+		    goto monitor_bad;
+		}
+	      monitor = -monitor;
+	      goto monitor_ok;
+	      
+	    monitor_bad:
+	      continue;
+	    }
+	  else
+	    continue;
+	  
+	  
+	  /* Get root window property value */
+	  
+	monitor_ok:
+	  prop_cookie = xcb_get_property(connection, 0, screen->root, *atoms, XCB_GET_PROPERTY_TYPE_ANY, 0, 0);
+	  prop_reply = xcb_get_property_reply(connection, prop_cookie, &error);
+	  
+	  if (error)
+	    {
+	      fprintf(stderr, "Screen root window property value query returned %i\n", error->error_code);
+	      free(prop_reply);
+	      free(list_reply);
+	      xcb_disconnect(connection);
+	      return 1;
+	    }
+	  
+	  len = prop_reply->bytes_after;
+	  free(prop_reply);
+	  
+	  prop_cookie = xcb_get_property(connection, 0, screen->root, *atoms, XCB_GET_PROPERTY_TYPE_ANY, 0, len);
+	  prop_reply = xcb_get_property_reply(connection, prop_cookie, &error);
+	  
+	  if (error)
+	    {
+	      fprintf(stderr, "Screen root window property value query returned %i\n", error->error_code);
+	      free(prop_reply);
+	      free(list_reply);
+	      xcb_disconnect(connection);
+	      return 1;
+	    }
+	  
+	  {
+	    char* value = alloca((len + 1) * sizeof(char));
+	    char* value_ = xcb_get_property_value(prop_reply);
+	    
+	    memcpy(value, value_, len);
+	    *(value + len) = 0;
+	    
+	    printf("%i: %i: %s", screen_i, monitor, value);
+	    fflush(stdout);
+	    putchar('\0');
+	    putchar('\n');
+	  }
+	  
+	  free(prop_reply);
+	}
+      
+      free(list_reply);
+    }
+  
+  fflush(stdout);
+  
+  /* Free resources **/
+  
+  xcb_disconnect(connection);
+  return 0;
+}
+