[gnome-color-manager] Set _ICC_PROFILE for the screen from the profile in the primary output

[Richard Hughes <rhughes src gnome org>]

commit d4bcd04a1932ab6e542763125b702f181bd55f80
Author: Richard Hughes <richard hughsie com>
Date:   Tue Nov 3 15:42:33 2009 +0000

    Set _ICC_PROFILE for the screen from the profile in the primary output
    
    This needs more work to deal with multi-monitor displays,
    but it works with 99% of the userbase for now.

 src/gcm-utils.c |   58 ++++++++++++++++++++++++++++++++++++++++++++++++++++--
 src/gcm-utils.h |    7 ++++-
 2 files changed, 60 insertions(+), 5 deletions(-)
---
diff --git a/src/gcm-utils.c b/src/gcm-utils.c
index fc67105..c4076ed 100644
--- a/src/gcm-utils.c
+++ b/src/gcm-utils.c
@@ -235,12 +235,19 @@ gcm_utils_set_output_gamma (GnomeRROutput *output, GError **error)
 	gboolean ret = FALSE;
 	GcmClut *clut = NULL;
 	GnomeRRCrtc *crtc;
+	gint x, y;
+	gchar *filename;
 
 	/* get CLUT */
 	clut = gcm_utils_get_clut_for_output (output, error);
 	if (clut == NULL)
 		goto out;
 
+	/* get filename of the profile, or NULL */
+	g_object_get (clut,
+		      "profile", &filename,
+		      NULL);
+
 	/* get crtc */
 	crtc = gnome_rr_output_get_crtc (output);
 
@@ -248,7 +255,17 @@ gcm_utils_set_output_gamma (GnomeRROutput *output, GError **error)
 	ret = gcm_utils_set_crtc_gamma (crtc, clut, error);
 	if (!ret)
 		goto out;
+
+	/* is the monitor our primary monitor */
+	gnome_rr_output_get_position (output, &x, &y);
+	if (x == 0 && y == 0 && filename != NULL) {
+		egg_debug ("setting main ICC profile atom from %s", filename);
+		ret = gcm_utils_set_x11_icc_profile (0, filename, error);
+		if (!ret)
+			goto out;
+	}
 out:
+	g_free (filename);
 	if (clut != NULL)
 		g_object_unref (clut);
 	return ret;
@@ -439,7 +456,7 @@ gcm_gnome_help (const gchar *link_id)
 }
 
 /**
- * gcm_utils_get_x11_icc_profile:
+ * gcm_utils_get_x11_icc_profile_data:
  *
  * @id: the ID that is used according to ICC Profiles In X Specification
  * @data: the data that is returned from the XServer. Free with g_free()
@@ -453,7 +470,7 @@ gcm_gnome_help (const gchar *link_id)
  * Gets the ICC profile data from the XServer.
  **/
 gboolean
-gcm_utils_get_x11_icc_profile (guint id, guint8 **data, gsize *size, GError **error)
+gcm_utils_get_x11_icc_profile_data (guint id, guint8 **data, gsize *size, GError **error)
 {
 	gboolean ret = FALSE;
 	gchar *atom_name;
@@ -524,6 +541,41 @@ out:
 /**
  * gcm_utils_set_x11_icc_profile:
  * @id: the ID that is used according to ICC Profiles In X Specification
+ * @filename: the filename of the ICC profile
+ * @error: a %GError that is set in the result of an error, or %NULL
+ * Return value: %TRUE for success.
+ *
+ * Sets the ICC profile data to the XServer.
+ *
+ * TODO: the ICC Profiles In X Specification is very vague about how the id
+ * map to the RROutput name or ID. Seek clarification.
+ **/
+gboolean
+gcm_utils_set_x11_icc_profile (guint id, const gchar *filename, GError **error)
+{
+	gboolean ret;
+	gchar *data = NULL;
+	gsize size;
+
+	g_return_val_if_fail (filename != NULL, FALSE);
+
+	/* get contents of file */
+	ret = g_file_get_contents (filename, &data, &size, error);
+	if (!ret)
+		goto out;
+
+	/* send to the XServer */
+	ret = gcm_utils_set_x11_icc_profile_data (id, (const guint8 *) data, size, error);
+	if (!ret)
+		goto out;
+out:
+	g_free (data);
+	return ret;
+}
+
+/**
+ * gcm_utils_set_x11_icc_profile_data:
+ * @id: the ID that is used according to ICC Profiles In X Specification
  * @data: the data that is to be set to the XServer
  * @size: the size of the data
  * @error: a %GError that is set in the result of an error, or %NULL
@@ -535,7 +587,7 @@ out:
  * map to the RROutput name or ID. Seek clarification.
  **/
 gboolean
-gcm_utils_set_x11_icc_profile (guint id, const guint8 *data, gsize size, GError **error)
+gcm_utils_set_x11_icc_profile_data (guint id, const guint8 *data, gsize size, GError **error)
 {
 	gboolean ret = FALSE;
 	gchar *atom_name;
diff --git a/src/gcm-utils.h b/src/gcm-utils.h
index a36ae30..24bb56b 100644
--- a/src/gcm-utils.h
+++ b/src/gcm-utils.h
@@ -51,14 +51,17 @@ gboolean	 gcm_utils_mkdir_and_copy		(const gchar		*source,
 gchar		*gcm_utils_get_profile_destination	(const gchar		*filename);
 gchar		**gcm_utils_ptr_array_to_strv		(GPtrArray		*array);
 gboolean	 gcm_gnome_help				(const gchar		*link_id);
-gboolean	 gcm_utils_get_x11_icc_profile		(guint			 id,
+gboolean	 gcm_utils_get_x11_icc_profile_data	(guint			 id,
 							 guint8			**data,
 							 gsize			*size,
 							 GError			**error);
-gboolean	 gcm_utils_set_x11_icc_profile		(guint			 id,
+gboolean	 gcm_utils_set_x11_icc_profile_data	(guint			 id,
 							 const guint8		*data,
 							 gsize			 size,
 							 GError			**error);
+gboolean	 gcm_utils_set_x11_icc_profile		(guint			 id,
+							 const gchar		*filename,
+							 GError			**error);
 
 #endif /* __GCM_UTILS_H */