[ REQ 5246]: X-geomview 1.5.0 visual support

[cljanss at munin.ca.sandia.gov]

Hi,

  Geomview gave me the following message:

  X-Geomview currently supports only 24, 8, and 1 bit
  deep displays.  No supported display depth was found.
  Please mail the output of "xdpyinfo" to
  software@geom.umn.edu

  The output of xdpyinfo is below.  As you can see, I only have one 16
plane TrueColor visual.  I can make geomview work by running the server
with 8 bitplanes, but then other applications I'm using don't work so well.
My platform is a PC running Linux with XFree86 3.1.1.  It seems common that
X servers for PC compatible machines don't simultaneously support >= 15
plane and 8 plane visuals at the same time; I've noticed this on servers
for both the S3 and Mach64 video cards.  Perhaps its a hardware limitation?

  I began making the changes for >= 15 plane support, but couldn't compile
geomview because it needed the Motif libraries.  If you could make use of
diffs let me know and I'll complete what I can without being able to test
my changes and send the diffs to you this weekend.  (Although there isn't
much to my diffs, geomview was well written enough for the changes to be
minor.)

  When I ran geomview with an 8 plane X server I was amazed at how fast
it was; very nice work!

Curt

----------------- xdpyinfo output --------------------
name of display:    soylent:0.0
version number:    11.0
vendor string:    The XFree86 Project, Inc
vendor release number:    3110
maximum request size:  65535 longwords (262140 bytes)
motion buffer size:  0
bitmap unit, bit order, padding:    32, LSBFirst, 32
image byte order:    LSBFirst
number of supported pixmap formats:    2
supported pixmap formats:
    depth 1, bits_per_pixel 1, scanline_pad 32
    depth 16, bits_per_pixel 16, scanline_pad 32
keycode range:    minimum 8, maximum 157
number of extensions:    9
    SHAPE
    MIT-SHM
    Multi-Buffering
    XTEST
    BIG-REQUESTS
    MIT-SUNDRY-NONSTANDARD
    MIT-SCREEN-SAVER
    SYNC
    XC-MISC
default screen number:    0
number of screens:    1

screen #0:
  dimensions:    1024x768 pixels (347x260 millimeters)
  resolution:    75x75 dots per inch
  depths (1):    16
  root window id:    0x25
  depth of root window:    16 planes
  number of colormaps:    minimum 1, maximum 1
  default colormap:    0x21
  default number of colormap cells:    64
  preallocated pixels:    black 0, white 65535
  options:    backing-store YES, save-unders YES
  current input event mask:    0x50003d
    KeyPressMask             ButtonPressMask          ButtonReleaseMask        
    EnterWindowMask          LeaveWindowMask          SubstructureRedirectMask 
    PropertyChangeMask       
  number of visuals:    1
  default visual id:  0x20
  visual:
    visual id:    0x20
    class:    TrueColor
    depth:    16 planes
    size of colormap:    64 entries
    red, green, blue masks:    0xf800, 0x7e0, 0x1f
    significant bits in color specification:    6 bits
  number of mono multibuffer types:    1
    visual id, max buffers, depth:    0x20, 0, 16
  number of stereo multibuffer types:    0