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Text File  |  2002-10-03  |  2.5 KB  |  67 lines
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  4. rrrreeeeaaaaddddccccoooo((((3333GGGG))))                                                          rrrreeeeaaaaddddccccoooo((((3333GGGG))))
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  8. NNNNAAAAMMMMEEEE
  9.      rrrreeeeaaaaddddccccoooo - sets the component source within the framebuffer source for
  10.      pixels that various routines read, useful primarily for monochrome image
  11.      processing.
  12.  
  13. FFFFOOOORRRRTTTTRRRRAAAANNNN 77777777 SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
  14.      ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee rrrreeeeaaaaddddccccoooo((((mmmmooooddddeeee))))
  15.      iiiinnnntttteeeeggggeeeerrrr****4444 mmmmooooddddeeee
  16.  
  17. PPPPAAAARRRRAAAAMMMMEEEETTTTEEEERRRRSSSS
  18.      _s_r_c    expects a symbolic constant that identifies the pixel component
  19.             that is to be used:
  20.  
  21.             RRRRCCCCNNNNMMMMLLLL Indicates that all 4 frame buffer components, ABGR should be
  22.             transferred.  This is the default.
  23.  
  24.             RRRRCCCCAAAALLLLPPPPHHHH selects the alpha channel of the current framebuffer
  25.             selected by readsource.
  26.  
  27.             RRRRCCCCBBBBLLLLUUUUEEEE selects the blue channel of the current framebuffer
  28.             selected by readsource.
  29.  
  30.             RRRRCCCCGGGGRRRREEEEEEEE selects the green channel of the current framebuffer
  31.             selected by readsource.
  32.  
  33.             RRRRCCCCRRRREEEEDDDD selects the red channel of the current framebuffer selected
  34.             by readsource.
  35.  
  36. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  37.      rrrreeeeaaaaddddccccoooo specifies the component source buffer from the pixel source buffer
  38.      that rrrreeeeccccttttccccoooo, rrrreeeeaaaaddddppppiiii, rrrreeeeaaaaddddRRRRGGGG, rrrreeeeccccttttrrrreeee, and llllrrrreeeeccccttttrrrr  use.
  39.  
  40. SSSSEEEEEEEE AAAALLLLSSSSOOOO
  41.      lrectr, readpi, readRG, rectco
  42.  
  43. NNNNOOOOTTTTEEEESSSS
  44.      This subroutine is available only in immediate mode and only on
  45.      RealityEngine systems running 5.0.1 or later.
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  63.                                                                         PPPPaaaaggggeeee 1111
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