cups/cups-icc.patch

From db29c24e3ff75938775aa1f4072e346aeb7f6a9c Mon Sep 17 00:00:00 2001
From: Richard Hughes <richard@hughsie.com>
Date: Tue, 1 Mar 2011 16:05:48 +0000
Subject: [PATCH] Add colord support to CUPS which allows Linux printers to be
 color managed

This functionality is possible because of lots of help from Tim Waugh -- thanks!
---
 scheduler/Makefile   |    1 +
 scheduler/colord.c   |  784 ++++++++++++++++++++++++++++++++++++++++++++++++++
 scheduler/colord.h   |   41 +++
 scheduler/ipp.c      |   18 +-
 scheduler/printers.c |   69 +++++
 scheduler/printers.h |    4 +
 6 files changed, 914 insertions(+), 3 deletions(-)
 create mode 100644 scheduler/colord.c
 create mode 100644 scheduler/colord.h

diff --git a/scheduler/Makefile b/scheduler/Makefile
index 3c7da8e..b9c47d3 100644
--- a/scheduler/Makefile
+++ b/scheduler/Makefile
@@ -27,6 +27,7 @@ CUPSDOBJS =	\
 		file.o \
 		main.o \
 		ipp.o \
+		colord.o \
 		listen.o \
 		job.o \
 		log.o \
diff --git a/scheduler/colord.c b/scheduler/colord.c
new file mode 100644
index 0000000..bd06e1c
--- /dev/null
+++ b/scheduler/colord.c
@@ -0,0 +1,784 @@
+/*
+ * "$Id$"
+ *
+ *   colord integration for the CUPS scheduler.
+ *
+ *   Copyright 2011 Red Hat, Inc.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ *   Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ *   COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ *   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ *   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ *   OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Contents:
+ *
+ *   colordRegisterPrinter()    - Register profiles for a printer.
+ *   colordUnregisterPrinter()  - Unregister profiles for a printer.
+ *   colordStart()              - Get a connection to the system bus.
+ *   colordStop()               - Release any connection to the system bus
+ *                                so that added profiles and devices are
+ *                                automatically removed.
+ */
+
+/*
+ * Include necessary headers...
+ */
+
+#include "cupsd.h"
+
+#ifdef HAVE_DBUS
+
+#include <dbus/dbus.h>
+#include <cups/ppd-private.h>
+
+/*
+ * Defines used by colord. See the reference docs for further details:
+ * http://colord.hughsie.com/api/ref-dbus.html
+ */
+#define COLORD_SCOPE_NORMAL   "normal"    /* System scope */
+#define COLORD_SCOPE_TEMP     "temp"      /* Process scope */
+#define COLORD_SCOPE_DISK     "disk"      /* Lives forever, as stored in DB */
+
+#define COLORD_RELATION_SOFT  "soft"      /* Mapping is not default */
+#define COLORD_RELATION_HARD  "hard"      /* Explicitly mapped profile */
+
+#define COLORD_SPACE_RGB      "rgb"       /* RGB colorspace */
+#define COLORD_SPACE_CMYK     "cmyk"      /* CMYK colorspace */
+#define COLORD_SPACE_GRAY     "gray"      /* Gray colorspace */
+#define COLORD_SPACE_UNKNOWN  "unknown"   /* Unknown colorspace */
+
+#define COLORD_MODE_PHYSICAL  "physical"  /* Actual device */
+#define COLORD_MODE_VIRTUAL   "virtual"   /* Virtual device with no hardware */
+
+#define COLORD_KIND_PRINTER   "printer"   /* printing output device */
+
+/* the timeout for connecting to colord */
+#define COLORD_DBUS_TIMEOUT   5000        /* ms */
+
+/* This is static */
+static DBusConnection *con = NULL;
+
+/*
+ * 'colordStart()' - Get a connection to the system bus.
+ */
+
+void
+colordStart(void)
+{
+  if (con)
+    return;
+  con = dbus_bus_get (DBUS_BUS_SYSTEM, NULL);
+}
+
+/*
+ * 'colordStop()' - Release any connection to the system bus so that
+ *                  added profiles and devices are automatically removed.
+ */
+
+void
+colordStop(void)
+{
+  if (con == NULL)
+    return;
+  dbus_connection_unref(con);
+  con = NULL;
+}
+
+/*
+ * 'message_dict_add_strings()' - add two strings to a dictionary.
+ */
+
+static void
+message_dict_add_strings (DBusMessageIter *dict,
+                          const char *key,
+                          const char *value)
+{
+        DBusMessageIter entry;
+        dbus_message_iter_open_container(dict,
+                                         DBUS_TYPE_DICT_ENTRY,
+                                         NULL,
+                                         &entry);
+        dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
+        dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &value);
+        dbus_message_iter_close_container(dict, &entry);
+}
+
+/*
+ * 'colordCreateProfile()' - Create a color profile for a printer.
+ *
+ * Notes: When creating the device, we can create
+ */
+
+static void
+colordCreateProfile (cups_array_t *profiles,    /* I - Profiles array */
+                     const char *printer_name,  /* I - Printer name */
+                     const char *qualifier,     /* I - Profile qualifier */
+                     const char *colorspace,    /* I - Profile colorspace */
+                     const char **format,       /* I - Profile qualifier format */
+                     const char *iccfile,       /* I - ICC filename */
+                     const char *scope)         /* I - The scope of the profile, e.g.
+                                                       'normal', 'temp' or 'disk' */
+{
+  DBusMessage           *message = NULL;        /* D-Bus request */
+  DBusMessage           *reply = NULL;          /* D-Bus reply */
+  DBusMessageIter       args;                   /* D-Bus method arguments */
+  DBusMessageIter       dict;                   /* D-Bus method arguments */
+  DBusError             error;                  /* D-Bus error */
+  char                  *idstr;                 /* Profile ID string */
+  size_t                idstrlen;               /* Profile ID allocated length */
+  const char            *profile_path;          /* Device object path */
+  char                  format_str[1024];       /* Qualifier format as a string */
+
+ /*
+  * Create the profile...
+  */
+
+  message = dbus_message_new_method_call("org.freedesktop.ColorManager",
+                                         "/org/freedesktop/ColorManager",
+                                         "org.freedesktop.ColorManager",
+                                         "CreateProfile");
+
+  /* create a profile id */
+  idstrlen = strlen (printer_name) + 1 + strlen (qualifier) + 1;
+  idstr = malloc (idstrlen);
+  if (!idstr)
+      goto out;
+  snprintf (idstr, idstrlen, "%s-%s", printer_name, qualifier);
+  cupsdLogMessage(CUPSD_LOG_DEBUG, "Using profile id of %s",
+                  idstr);
+
+  dbus_message_iter_init_append(message, &args);
+  dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &idstr);
+  dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &scope);
+
+  /* mush the qualifier format into a simple string */
+  snprintf(format_str, sizeof(format_str), "%s.%s.%s",
+           format[0],
+           format[1],
+           format[2]);
+
+  /* set initial properties */
+  dbus_message_iter_open_container(&args,
+                                   DBUS_TYPE_ARRAY,
+                                   "{ss}",
+                                   &dict);
+  message_dict_add_strings(&dict, "Qualifier", qualifier);
+  message_dict_add_strings(&dict, "Format", format_str);
+  message_dict_add_strings(&dict, "Colorspace", colorspace);
+  if (iccfile != NULL)
+    message_dict_add_strings(&dict, "Filename", iccfile);
+  dbus_message_iter_close_container(&args, &dict);
+
+  /* send syncronous */
+  dbus_error_init(&error);
+  cupsdLogMessage(CUPSD_LOG_DEBUG, "Calling CreateProfile(%s,%s)",
+                  idstr, scope);
+  reply = dbus_connection_send_with_reply_and_block(con,
+                                                    message,
+                                                    COLORD_DBUS_TIMEOUT,
+                                                    &error);
+  if (reply == NULL)
+  {
+        cupsdLogMessage(CUPSD_LOG_WARN,
+                        "failed to CreateProfile: %s:%s",
+                        error.name, error.message);
+        dbus_error_free(&error);
+        goto out;
+  }
+
+  /* get reply data */
+  dbus_message_iter_init(reply, &args);
+  if (dbus_message_iter_get_arg_type(&args) != DBUS_TYPE_OBJECT_PATH)
+  {
+        cupsdLogMessage(CUPSD_LOG_WARN,
+                        "incorrect reply type");
+        goto out;
+  }
+  dbus_message_iter_get_basic(&args, &profile_path);
+  cupsdLogMessage(CUPSD_LOG_DEBUG,
+                  "created profile %s",
+                  profile_path);
+  cupsArrayAdd(profiles, strdup(profile_path));
+
+out:
+  if (message != NULL)
+    dbus_message_unref(message);
+  if (reply != NULL)
+    dbus_message_unref(reply);
+  free (idstr);
+}
+
+/*
+ * 'colordDeviceAddProfile()' - Assign a profile to a device.
+ */
+
+static void
+colordDeviceAddProfile (const char *device_path,       /* I - Device object path */
+                        const char *profile_path,      /* I - Profile object path */
+                        const char *relation)          /* I - Device relation, either 'soft' or 'hard' */
+{
+  DBusMessage           *message = NULL;        /* D-Bus request */
+  DBusMessage           *reply = NULL;          /* D-Bus reply */
+  DBusMessageIter       args;                   /* D-Bus method arguments */
+  DBusError             error;                  /* D-Bus error */
+
+  message = dbus_message_new_method_call("org.freedesktop.ColorManager",
+                                         device_path,
+                                         "org.freedesktop.ColorManager.Device",
+                                         "AddProfile");
+
+  /* send profile path as the argument */
+  dbus_message_iter_init_append(message, &args);
+  dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &relation);
+  dbus_message_iter_append_basic(&args, DBUS_TYPE_OBJECT_PATH, &profile_path);
+  cupsdLogMessage(CUPSD_LOG_DEBUG,
+                  "Calling %s:AddProfile(%s) [%s]",
+                  device_path, profile_path, relation);
+
+  /* send syncronous */
+  dbus_error_init(&error);
+  reply = dbus_connection_send_with_reply_and_block(con,
+                                                    message,
+                                                    COLORD_DBUS_TIMEOUT,
+                                                    &error);
+  if (reply == NULL)
+  {
+        cupsdLogMessage(CUPSD_LOG_WARN,
+                        "failed to AddProfile: %s:%s",
+                        error.name, error.message);
+        dbus_error_free(&error);
+        goto out;
+  }
+out:
+  if (message != NULL)
+    dbus_message_unref(message);
+  if (reply != NULL)
+    dbus_message_unref(reply);
+}
+
+/*
+ * 'colordCreateDevice()' - Create a device and register profiles.
+ */
+
+static void
+colordCreateDevice (cupsd_printer_t *p,         /* I - Printer */
+                    ppd_file_t *ppd,            /* I - PPD file */
+                    cups_array_t *profiles,     /* I - Profiles array */
+                    const char *colorspace,     /* I - Device colorspace, e.g. 'rgb' */
+                    char **format,              /* I - Device qualifier format */
+                    const char *relation,       /* I - Profile relation, either 'soft' or 'hard' */
+                    const char *scope)          /* I - The scope of the device, e.g.
+                                                       'normal', 'temp' or 'disk' */
+{
+  DBusMessage           *message = NULL;        /* D-Bus request */
+  DBusMessage           *reply = NULL;          /* D-Bus reply */
+  DBusMessageIter       args;                   /* D-Bus method arguments */
+  DBusMessageIter       dict;                   /* D-Bus method arguments */
+  DBusError             error;                  /* D-Bus error */
+  const char            *device_path;           /* Device object path */
+  const char            *profile_path;          /* Profile path */
+  char                  *default_profile_path = NULL;
+                                                /* Default profile path */
+  char                  device_id[1024];        /* Device ID as understood by colord */
+  char                  format_str[1024];       /* Qualifier format as a string */
+
+ /*
+  * Create the device...
+  */
+
+  snprintf(device_id, sizeof(device_id), "cups-%s", p->name);
+  device_path = device_id;
+
+  message = dbus_message_new_method_call("org.freedesktop.ColorManager",
+                                         "/org/freedesktop/ColorManager",
+                                         "org.freedesktop.ColorManager",
+                                         "CreateDevice");
+
+  dbus_message_iter_init_append(message, &args);
+  dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &device_path);
+  dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &scope);
+
+  /* mush the qualifier format into a simple string */
+  snprintf(format_str, sizeof(format_str), "%s.%s.%s",
+           format[0],
+           format[1],
+           format[2]);
+
+  /* set initial properties */
+  dbus_message_iter_open_container(&args,
+                                 DBUS_TYPE_ARRAY,
+                                 "{ss}",
+                                 &dict);
+  message_dict_add_strings(&dict, "Colorspace", colorspace);
+  message_dict_add_strings(&dict, "Mode", COLORD_MODE_PHYSICAL);
+  if (ppd->manufacturer != NULL)
+    message_dict_add_strings(&dict, "Vendor", ppd->manufacturer);
+  if (ppd->modelname != NULL)
+    message_dict_add_strings(&dict, "Model", ppd->modelname);
+  if (p->sanitized_device_uri != NULL)
+    message_dict_add_strings(&dict, "Serial", p->sanitized_device_uri);
+  message_dict_add_strings(&dict, "Format", format_str);
+  message_dict_add_strings(&dict, "Kind", COLORD_KIND_PRINTER);
+  dbus_message_iter_close_container(&args, &dict);
+
+  /* send syncronous */
+  dbus_error_init(&error);
+  cupsdLogMessage(CUPSD_LOG_DEBUG, "Calling CreateDevice(%s,%s)",
+                  device_id, scope);
+  reply = dbus_connection_send_with_reply_and_block(con,
+                                                    message,
+                                                    COLORD_DBUS_TIMEOUT,
+                                                    &error);
+  if (reply == NULL)
+  {
+        cupsdLogMessage(CUPSD_LOG_WARN,
+                        "failed to CreateDevice: %s:%s",
+                        error.name, error.message);
+        dbus_error_free(&error);
+        goto out;
+  }
+
+  /* get reply data */
+  dbus_message_iter_init(reply, &args);
+  if (dbus_message_iter_get_arg_type(&args) != DBUS_TYPE_OBJECT_PATH)
+  {
+        cupsdLogMessage(CUPSD_LOG_WARN,
+                        "incorrect reply type");
+        goto out;
+  }
+  dbus_message_iter_get_basic(&args, &device_path);
+  cupsdLogMessage(CUPSD_LOG_DEBUG,
+                  "created device %s",
+                  device_path);
+
+  /* add profiles */
+  for (profile_path = cupsArrayFirst(profiles);
+       profile_path;
+       profile_path = cupsArrayNext(profiles))
+  {
+    colordDeviceAddProfile (device_path, profile_path, relation);
+  }
+
+out:
+  free(default_profile_path);
+  if (message != NULL)
+    dbus_message_unref(message);
+  if (reply != NULL)
+    dbus_message_unref(reply);
+}
+
+/*
+ * 'colordFindDeviceById()' - Finds a device
+ */
+
+static char *
+colordFindDeviceById (const char *device_id)      /* I - Device ID string */
+{
+  DBusMessage           *message = NULL;        /* D-Bus request */
+  DBusMessage           *reply = NULL;          /* D-Bus reply */
+  DBusMessageIter       args;                   /* D-Bus method arguments */
+  DBusError             error;                  /* D-Bus error */
+  const char           *device_path_tmp;        /* Device object path */
+  char                 *device_path = NULL;     /* Device object path */
+
+  message = dbus_message_new_method_call("org.freedesktop.ColorManager",
+                                         "/org/freedesktop/ColorManager",
+                                         "org.freedesktop.ColorManager",
+                                         "FindDeviceById");
+
+  dbus_message_iter_init_append(message, &args);
+  dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &device_id);
+
+  /* send syncronous */
+  dbus_error_init(&error);
+  cupsdLogMessage(CUPSD_LOG_DEBUG, "Calling FindDeviceById(%s)", device_id);
+  reply = dbus_connection_send_with_reply_and_block(con,
+                                                    message,
+                                                    COLORD_DBUS_TIMEOUT,
+                                                    &error);
+  if (reply == NULL)
+  {
+        /* this can happen normally on start-up */
+        cupsdLogMessage(CUPSD_LOG_DEBUG,
+                        "failed to DeleteDevice: %s:%s",
+                        error.name, error.message);
+        dbus_error_free(&error);
+        goto out;
+  }
+
+  /* get reply data */
+  dbus_message_iter_init(reply, &args);
+  if (dbus_message_iter_get_arg_type(&args) != DBUS_TYPE_OBJECT_PATH)
+  {
+        cupsdLogMessage(CUPSD_LOG_WARN,
+                        "incorrect reply type");
+        goto out;
+  }
+  dbus_message_iter_get_basic(&args, &device_path_tmp);
+  if (device_path_tmp != NULL)
+    device_path = strdup (device_path_tmp);
+out:
+  if (message != NULL)
+    dbus_message_unref(message);
+  if (reply != NULL)
+    dbus_message_unref(reply);
+  return device_path;
+}
+
+/*
+ * 'colordDeleteDevice()' - Delete a device
+ */
+
+static void
+colordDeleteDevice (const char *device_id)      /* I - Device ID string */
+{
+  DBusMessage           *message = NULL;        /* D-Bus request */
+  DBusMessage           *reply = NULL;          /* D-Bus reply */
+  DBusMessageIter       args;                   /* D-Bus method arguments */
+  DBusError             error;                  /* D-Bus error */
+  char                 *device_path;            /* Device object path */
+
+ /*
+  * Find the device...
+  */
+
+  device_path = colordFindDeviceById (device_id);
+  if (device_path == NULL)
+  {
+        /* this can happen normally on start-up */
+        cupsdLogMessage(CUPSD_LOG_WARN,
+                        "failed to find device: %s",
+                        device_id);
+        goto out;
+  }
+
+ /*
+  * Delete the device...
+  */
+
+  message = dbus_message_new_method_call("org.freedesktop.ColorManager",
+                                         "/org/freedesktop/ColorManager",
+                                         "org.freedesktop.ColorManager",
+                                         "DeleteDevice");
+
+  dbus_message_iter_init_append(message, &args);
+  dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &device_id);
+
+  /* send syncronous */
+  dbus_error_init(&error);
+  cupsdLogMessage(CUPSD_LOG_DEBUG, "Calling DeleteDevice(%s)", device_id);
+  reply = dbus_connection_send_with_reply_and_block(con,
+                                                    message,
+                                                    COLORD_DBUS_TIMEOUT,
+                                                    &error);
+  if (reply == NULL)
+  {
+        /* this can happen normally on start-up */
+        cupsdLogMessage(CUPSD_LOG_DEBUG,
+                        "failed to DeleteDevice: %s:%s",
+                        error.name, error.message);
+        dbus_error_free(&error);
+        goto out;
+  }
+out:
+  free (device_path);
+  if (message != NULL)
+    dbus_message_unref(message);
+  if (reply != NULL)
+    dbus_message_unref(reply);
+}
+
+/*
+ * 'colordGetQualifierFormat()' - Get the qualifier format.
+ *
+ * Notes: Returns a value of "ColorSpace.MediaType.Resolution" by default
+ */
+
+char **
+colordGetQualifierFormat(ppd_file_t *ppd)
+{
+  char                  **format;       /* Qualifier format tuple */
+  const char            *tmp;           /* Temporary string */
+  ppd_attr_t            *attr;          /* Profile attributes */
+
+  /* create 3-tuple */
+  format = calloc(3, sizeof(char*));
+
+  /* get 1st section */
+  tmp = "cupsICCQualifier1";
+  attr = ppdFindAttr(ppd, tmp, NULL);
+  if (attr != NULL)
+    tmp = attr->value;
+  else
+  {
+    tmp = "DefaultColorSpace";
+    attr = ppdFindAttr(ppd, tmp, NULL);
+  }
+  if (attr == NULL)
+  {
+    tmp = "DefaultColorModel";
+    attr = ppdFindAttr(ppd, tmp, NULL);
+  }
+  if (attr == NULL)
+  {
+    tmp = "";
+  }
+  if (strncmp(tmp, "Default", 7) == 0)
+    tmp += 7;
+  format[0] = strdup(tmp);
+
+  /* get 2nd section */
+  tmp = "cupsICCQualifier2";
+  attr = ppdFindAttr(ppd, tmp, NULL);
+  if (attr != NULL)
+    tmp = attr->value;
+  else
+  {
+    tmp = "DefaultMediaType";
+    attr = ppdFindAttr(ppd, tmp, NULL);
+  }
+  if (attr == NULL)
+  {
+    tmp = "";
+  }
+  if (strncmp(tmp, "Default", 7) == 0)
+    tmp += 7;
+  format[1] = strdup(tmp);
+
+  /* get 3rd section */
+  tmp = "cupsICCQualifier3";
+  attr = ppdFindAttr(ppd, tmp, NULL);
+  if (attr != NULL)
+    tmp = attr->value;
+  else
+  {
+    tmp = "DefaultResolution";
+    attr = ppdFindAttr(ppd, tmp, NULL);
+  }
+  if (attr == NULL)
+  {
+    tmp = "";
+  }
+  if (strncmp(tmp, "Default", 7) == 0)
+    tmp += 7;
+  format[2] = strdup(tmp);
+
+  return format;
+}
+
+/*
+ * 'colordRegisterPrinter()' - Register profiles for a printer.
+ */
+
+void
+colordRegisterPrinter(cupsd_printer_t *p)    /* I - printer */
+{
+  char                  ppdfile[1024],  /* PPD filename */
+                        iccfile[1024];  /* ICC filename */
+  ppd_file_t            *ppd;           /* PPD file */
+  cups_array_t          *profiles;      /* Profile paths array */
+  const char            *profile_key;   /* Profile keyword */
+  ppd_attr_t            *attr;          /* Profile attributes */
+  const char            *device_colorspace;   /* Device colorspace */
+  char                  **format;       /* Qualifier format tuple */
+  int                   i;              /* Loop counter */
+
+ /*
+  * Do nothing for discovered printers as they will have local color
+  * correction
+  */
+
+  if (p->type & CUPS_PRINTER_DISCOVERED)
+    return;
+
+ /*
+  * Ensure we have a DBus connection
+  */
+
+  colordStart();
+  if (con == NULL)
+    return;
+
+ /*
+  * Try opening the PPD file for this printer...
+  */
+
+  snprintf(ppdfile, sizeof(ppdfile), "%s/ppd/%s.ppd", ServerRoot, p->name);
+  if ((ppd = ppdOpenFile(ppdfile)) == NULL)
+  {
+    cupsdLogMessage(CUPSD_LOG_DEBUG,
+                    "cannot open %s",
+                    ppdfile);
+    return;
+  }
+
+ /*
+  * Find out the qualifier format
+  */
+
+  format = colordGetQualifierFormat(ppd);
+
+ /*
+  * See if we have any embedded profiles...
+  */
+
+  profiles = cupsArrayNew3 (NULL, NULL, NULL, 0, NULL,
+                            (cups_afree_func_t) free);
+  profile_key = "cupsICCProfile";
+  attr = ppdFindAttr(ppd, profile_key, NULL);
+  for (; attr; attr = ppdFindNextAttr(ppd, profile_key, NULL))
+    if (attr->spec[0] && attr->value && attr->value[0])
+    {
+      if (attr->value[0] != '/')
+        snprintf(iccfile, sizeof(iccfile), "%s/profiles/%s", DataDir,
+                 attr->value);
+      else
+        strlcpy(iccfile, attr->value, sizeof(iccfile));
+
+      if (access(iccfile, 0))
+      {
+        cupsdLogMessage(CUPSD_LOG_WARN,
+                        "no access to %s",
+                        iccfile);
+        continue;
+      }
+
+      colordCreateProfile(profiles,
+                          p->name,
+                          attr->spec,
+                          COLORD_SPACE_UNKNOWN,
+                          (const char **)format,
+                          iccfile,
+                          COLORD_SCOPE_TEMP);
+    }
+
+ /*
+  * Add the grayscale profile first.  We always have a grayscale profile.
+  */
+
+  colordCreateProfile(profiles,
+                      p->name,
+                      "Gray..",
+                      COLORD_SPACE_GRAY,
+                      (const char **)format,
+                      NULL,
+                      COLORD_SCOPE_TEMP);
+
+ /*
+  * Then add the RGB/CMYK/DeviceN color profile...
+  */
+
+  device_colorspace = "unknown";
+  switch (ppd->colorspace)
+  {
+    case PPD_CS_RGB :
+    case PPD_CS_CMY :
+        device_colorspace = COLORD_SPACE_RGB;
+        colordCreateProfile(profiles,
+                            p->name,
+                            "RGB..",
+                            COLORD_SPACE_RGB,
+                            (const char **)format,
+                            NULL,
+                            COLORD_SCOPE_TEMP);
+        break;
+    case PPD_CS_RGBK :
+    case PPD_CS_CMYK :
+        device_colorspace = COLORD_SPACE_CMYK;
+        colordCreateProfile(profiles,
+                            p->name,
+                            "CMYK..",
+                            COLORD_SPACE_CMYK,
+                            (const char **)format,
+                            NULL,
+                            COLORD_SCOPE_TEMP);
+        break;
+    case PPD_CS_GRAY :
+        device_colorspace = COLORD_SPACE_GRAY;
+        break;
+    case PPD_CS_N :
+        colordCreateProfile(profiles,
+                            p->name,
+                            "DeviceN..",
+                            COLORD_SPACE_UNKNOWN,
+                            (const char **)format,
+                            NULL,
+                            COLORD_SCOPE_TEMP);
+        break;
+  }
+
+ /*
+  * Register the device with colord.
+  */
+
+  cupsdLogMessage(CUPSD_LOG_INFO, "Registering ICC color profiles for \"%s\"",
+                  p->name);
+  colordCreateDevice (p,
+                      ppd,
+                      profiles,
+                      device_colorspace,
+                      format,
+                      COLORD_RELATION_SOFT,
+                      COLORD_SCOPE_TEMP);
+
+ /*
+  * Free any memory we used...
+  */
+
+  cupsArrayDelete(profiles);
+  for (i=0; i<3; i++)
+    free(format[i]);
+  free(format);
+
+  ppdClose(ppd);
+}
+
+/*
+ * 'colordUnregisterPrinter()' - Unregister profiles for a printer.
+ */
+
+void
+colordUnregisterPrinter(cupsd_printer_t *p)  /* I - printer */
+{
+  char                  device_id[1024];        /* Device ID as understood by colord */
+
+ /*
+  * Ensure we have a DBus connection
+  */
+
+  colordStart();
+  if (con == NULL)
+    return;
+
+ /*
+  * Just delete the device itself, and leave the profiles registered
+  */
+
+  snprintf(device_id, sizeof(device_id), "cups-%s", p->name);
+  colordDeleteDevice(device_id);
+}
+
+#endif /* HAVE_DBUS */
+
+/*
+ * End of "$Id$".
+ */
diff --git a/scheduler/colord.h b/scheduler/colord.h
new file mode 100644
index 0000000..75bdd3b
--- /dev/null
+++ b/scheduler/colord.h
@@ -0,0 +1,41 @@
+/*
+ * "$Id$"
+ *
+ *   colord integration for the CUPS scheduler.
+ *
+ *   Copyright 2011 Red Hat, Inc.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *   Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ *   Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ *   COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ *   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ *   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ *   OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+void	colordRegisterPrinter(cupsd_printer_t *p);
+void	colordUnregisterPrinter(cupsd_printer_t *p);
+void	colordStart(void);
+void	colordStop(void);
+
+/*
+ * End of "$Id$".
+ */
diff --git a/scheduler/ipp.c b/scheduler/ipp.c
index b9903d1..b5af36f 100644
--- a/scheduler/ipp.c
+++ b/scheduler/ipp.c
@@ -2921,17 +2921,23 @@ add_printer(cupsd_client_t  *con,	/* I - Client connection */
 
     cupsdSetPrinterReasons(printer, "none");
 
-#ifdef __APPLE__
    /*
     * (Re)register color profiles...
     */
 
     if (!RunUser)
     {
+      cupsdCmsRegisterPrinter(printer);
+#ifdef __APPLE__
+     /*
+      * FIXME: ideally the ColorSync stuff would be moved to colorsync.c
+      * and the colorsyncRegisterProfiles() would be called from
+      * cupsdCmsRegisterPrinter() in printers.c
+      */
       apple_unregister_profiles(printer);
       apple_register_profiles(printer);
-    }
 #endif /* __APPLE__ */
+    }
   }
 
  /*
@@ -7028,11 +7034,17 @@ delete_printer(cupsd_client_t  *con,	/* I - Client connection */
   snprintf(filename, sizeof(filename), "%s/%s.data", CacheDir, printer->name);
   unlink(filename);
 
-#ifdef __APPLE__
  /*
   * Unregister color profiles...
   */
 
+  cupsdCmsUnregisterPrinter(printer);
+#ifdef __APPLE__
+ /*
+  * FIXME: ideally the ColorSync stuff would be moved to colorsync.c
+  * and the colorsyncUnregisterPrinter() would be called from
+  * cupsdCmsUnregisterPrinter() in printers.c
+  */
   apple_unregister_profiles(printer);
 #endif /* __APPLE__ */
 
diff --git a/scheduler/printers.c b/scheduler/printers.c
index 6920801..e830499 100644
--- a/scheduler/printers.c
+++ b/scheduler/printers.c
@@ -80,6 +80,9 @@
 #  include <asl.h>
 #endif /* __APPLE__ */
 
+#ifdef HAVE_DBUS
+# include "colord.h"
+#endif /* HAVE_DBUS */
 
 /*
  * Local functions...
@@ -712,6 +715,53 @@ cupsdDeleteAllPrinters(void)
   }
 }
 
+/*
+ * 'cupsdCmsRegisterPrinter()' - Registers a printer and profiles with the CMS
+ */
+
+void
+cupsdCmsRegisterPrinter(cupsd_printer_t *p)
+{
+#if defined(HAVE_DBUS)
+  colordRegisterPrinter(p);
+#endif /* defined(HAVE_DBUS) */
+}
+
+/*
+ * 'cupsdCmsUnregisterPrinter()' - Unregisters a printer and profiles with the CMS
+ */
+
+void
+cupsdCmsUnregisterPrinter(cupsd_printer_t *p)
+{
+#if defined(HAVE_DBUS)
+  colordUnregisterPrinter(p);
+#endif /* defined(HAVE_DBUS) */
+}
+
+/*
+ * 'cupsdCmsStart()' - Starts the CMS
+ */
+
+void
+cupsdCmsStart(void)
+{
+#if defined(HAVE_DBUS)
+  colordStart();
+#endif /* defined(HAVE_DBUS) */
+}
+
+/*
+ * 'cupsdCmsStop()' - Stops the CMS
+ */
+
+void
+cupsdCmsStop(void)
+{
+#if defined(HAVE_DBUS)
+  colordStop();
+#endif /* defined(HAVE_DBUS) */
+}
 
 /*
  * 'cupsdDeletePrinter()' - Delete a printer from the system.
@@ -752,6 +802,12 @@ cupsdDeletePrinter(
 		              "Job stopped.");
 
  /*
+  * Unregister profiles...
+  */
+
+  cupsdCmsUnregisterPrinter(p);
+
+ /*
   * If this printer is the next for browsing, point to the next one...
   */
 
@@ -1418,6 +1474,12 @@ cupsdRenamePrinter(
   }
 
  /*
+  * Unregister profiles...
+  */
+
+  cupsdCmsUnregisterPrinter(p);
+
+ /*
   * Rename the printer...
   */
 
@@ -2644,6 +2706,13 @@ cupsdSetPrinterAttrs(cupsd_printer_t *p)/* I - Printer to setup */
 #endif /* __sgi */
 
  /*
+  * Re-register profiles...
+  */
+
+  cupsdCmsUnregisterPrinter(p);
+  cupsdCmsRegisterPrinter(p);
+
+ /*
   * Let the browse protocols reflect the change
   */
 
diff --git a/scheduler/printers.h b/scheduler/printers.h
index 1751578..3820428 100644
--- a/scheduler/printers.h
+++ b/scheduler/printers.h
@@ -170,6 +170,10 @@ extern const char	*cupsdValidateDest(const char *uri,
 			        	   cups_ptype_t *dtype,
 					   cupsd_printer_t **printer);
 extern void		cupsdWritePrintcap(void);
+extern void		cupsdCmsRegisterPrinter(cupsd_printer_t *p);
+extern void		cupsdCmsUnregisterPrinter(cupsd_printer_t *p);
+extern void		cupsdCmsStart(void);
+extern void		cupsdCmsStop(void);
 
 
 /*
-- 
1.7.6.2