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Text File  |  2002-10-03  |  2.4 KB  |  67 lines
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  4. hhhhssssttttggggrrrrmmmm((((3333GGGG))))                                                          hhhhssssttttggggrrrrmmmm((((3333GGGG))))
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  8. NNNNAAAAMMMMEEEE
  9.      hhhhssssttttggggrrrrmmmm -  modifies pixel transfers to compute a histogram
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  11. FFFFOOOORRRRTTTTRRRRAAAANNNN SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
  12.      ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee hhhhssssttttggggrrrrmmmm((((oooopppp,,,, vvvvaaaalllluuuueeee))))
  13.      iiiinnnntttteeeeggggeeeerrrr****4444 oooopppp
  14.      iiiinnnntttteeeeggggeeeerrrr****4444 vvvvaaaalllluuuueeee
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  16. PPPPAAAARRRRAAAAMMMMEEEETTTTEEEERRRRSSSS
  17.      _o_p   one of the symbolic constants:
  18.           (parameters that affect lrectread, lrectwrite, rectcopy pixel
  19.           transfers)
  20.           HIST_ENABLE, default value:0. Enable hgram in lrectread, lrectwrite
  21.           and rectcopy pixel transfers. Value specifies the number of equally
  22.           spaced bins in the histogram. Valid values: 1 to 4096.
  23.           HIST_DISABLE, disable hgram.
  24.           HIST_CLEAR, clear every histogram bin to value
  25.  
  26.      _v_a_l_u_e
  27.           specifies the number of equally spaced bins in histogram if op is
  28.           HIST_ENABLE. Valid values: 1 to 4096. specifies the value to clear
  29.           the histogram to if op is HIST_CLEAR.
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  31. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  32.      hgram allows enabling and disabling of the collection of histogram data
  33.      during pixel transfer operations (e.g., rectcopy, lrectread, and
  34.      lrectwrite). When hgram is enabled, the destination of the pixel transfer
  35.      operation is unaffected by the pixel transfer operation. The histogram
  36.      bins can be initialized by HIST_CLEAR.  Enabling and disabling of hgram
  37.      do not initialize the histogram, the initialization is done through
  38.      HIST_CLEAR.
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  40. SSSSEEEEEEEE AAAALLLLSSSSOOOO
  41.      gethgram minmax getminmax pixeltransfer pixelmap pixmode
  42.  
  43. NNNNOOOOTTTTEEEESSSS
  44.      hgram only works on RealityEngine systems running 5.0.1 or greater.
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  63.                                                                         PPPPaaaaggggeeee 1111
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