Plymouth progress patch

[Charlie Brej]

Two things

1: I have committed a patch to get the progress to retain between splash 
plugins. Attached is the second half of the patch which I wanted you to 
OK before I commit. It changes the boot-duration to contain the arrival 
times (as a percentage of the whole boot time) of the messages during 
the previous boot.

e.g:
0.381:Applying Intel CPU microcode update:                 [  OK  ]
0.408:ip6tables: Applying firewall rules:                  [  OK  ]
0.438:iptables: Applying firewall rules:                   [  OK  ]
0.502:Bringing up loopback interface:                      [  OK  ]
0.578:Starting auditd:                                     [  OK  ]
0.618:Starting restorecond:                                [  OK  ]
0.763:Starting setroubleshootd:                            [  OK  ]
0.810:Starting sshd:                                       [  OK  ]

This would allow the live CD version to come with such a file and the 
progress would calibrate itself to the boot speed of the current 
machine. I also made the progress smooth to remove any backward steps 
and slowdowns.
http://www.cs.man.ac.uk/~brejc8/temp/1.svg shows the time in seconds vs 
the progress reported % of several boots.

2: I was going to propose indirecting the control plugins from rather 
than directly drawing to the shadow framebuffer, to draw to images. This 
would allow a level of flexibility by allowing text to be placed with 
opacity, rotated, etc. Additionally, I have most of a fixed font control 
plugin in place to allow text before pango is loaded.

-- 
Dr Charles Brej, Research Associate, APT Group
IT412, IT Building, School of Computer Science
University of Manchester, Manchester,  M13 9PL
Web: http://brej.org/ Tel: +44 (0)161 275 7274

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