See if the graphic on this calc works for the situation;
http://www.timbertoolbox.com/Calcs/irreghip.html
Basically slap that picture against the house wall.
Umm, let's see if I can make that pic appear here;
For the hip trib load;
Take the measure of the base line where the arrow is pointing that reads "major plan angle", multiply it by the horizontal span length formed by the bottom of the blue triangle and multiply by .5 (remember math class, area of a triangle = 1/2 base times height, we are getting the area of that triangle in Plan, overhead, view) there's the area of what is bearing on that side of the hip.
Do the same for the minor side of the hip.
Add those 2 areas that are tributary to the hip together and multiply by the design live + dead load, the sum is the total load on the hip.
The formula for the reaction of the heavy end of a beam where the load is uniformly increasing toward one end is R= 2W/3... multiply the total hip load by .66 and you'll have the load at the hip to ledger connection. That is technically the load to be supported if you don't want to go into diaphragm action which is the intent of that prescriptive section of code. At it's simplest, if there is a ceiling ledger I can get some ledgerlocks into with shear values sufficient to resist the load then a post from that ledger up to the hip is the easy way. Otherwise calc the hip connection and design, the awc connection calc may help or ledgerlocks thru the hip into the ledger and same from ledger into the house may be sufficient. Here is one of the places where Simpson isn't your only way out, sheet metal with a nail thru it does have a design value in that connection calc... you can site fabricate this strapping.
For the jacks take the trib from the long side of their tributary area, calc load, half is bearing on the hip, half is bearing on the carry beam, connect to the hip sufficiently to support half the total jack load, usually a few nails is fine for these types of spans.
In reality, I've only seen the hip seperate and begin to come down if the carry beam tilts out. I worked on one where that was a barn shed roof. The hip was pinned to the wall with 3 nails, the corner post was installed on a cow pie and the carry beam was a flatways 2x6. The diaphragm was provided by leadheads in 5v tin. It had lasted in that condition since the 40's and the hip had been disconnected for some years. Severely distorted but it hadn't gone Whump.