[SDL] physical address of pixels in linux

[Wes Poole]

You have to lock the surface (SDL_LockSurface), then the pixel buffer will be available in surface->pixels, when you are finished unlock the surface (SDL_UnlockSurface).  Pixel operations are much slower on Hardware surfaces, so if you plan to do lots of them to the surface often you will be better off with Software sufaces.
  ----- Original Message ----- 
  From: xlf 
  To: sdl at libsdl.org 
  Sent: Thursday, December 25, 2003 3:51 AM
  Subject: [SDL] physical address of pixels in linux


  Hi ,
  I create a surface with SDL_HWSURFACE in linux,but I can not find the physical address of the pixels,
  Who can help me?


  Xie
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