Emulator

Purpose of code changes on this branch:
Tweak the "Widescreen Hack":

• Hack longer assumes the game is running at 4:3 and the user has a
  display of 16:9
• Attempt to adjust the aspect ratio From either 16:9 or 4:3 ( depending
  on value of g_VideoInitialize.bAutoAspectIs16_9 )
• Attempt to adjust the aspect ratio To what the user has chosen in the
  "Aspect Ratio" combobox.

[ Aspect Ratio combobox ] :

• If "Auto" is chosen, the hack will have NO effect in any game.
• If "Force 16:9" is chosen and a 4:3 game is running, the hack will
  adjust from 4:3 to 16:9 (Hor+).
• If "Force 16:9" is chosen and a 16:9 game is running, the hack will have
  NO effect.
• If "Force 4:3" is chosen and a 16:9 game is running, the hack will
  adjust from 16:9 to 4:3 (Vert+).
• If "Force 4:3" is chosen and a 4:3 game is running, the hack will have
  NO effect.
• If "Stretch" is chosen, the hack will adjust from the games aspect ratio
  ( either 16:9 or 4:3 ) to the aspect ratio of the user's chosen fullscreen
  resolution. ( using Hor+ or Vert+ ) ( this allows playing of games on 16:10
  or 5:4 displays without a fat or skinny 3d image )

After all, this is a "HACK". It should allow "Hacking" to any
aspect ratio the user wants. Not just 16:9.

When reviewing my code changes, please focus on:
I don't really care for the method I used to get the fullscreen resolution:
sscanf(g_Config.cFSResolution, "%dx%d", &w_fs, &h_fs);
I couldn't find a better/correct method. Maybe someone else can fix that.

Perhaps the entire "UpdateAspectRatioHack" function shouldn't be in
"VertexShaderManager.cpp". Maybe someone knows where it does belong.

Patch Download:
http://billiard.us.to/share/Dolphin/aspect_ratio_tweak.patch