From: michael DOT gledhill AT lineone DOT net (Michael Gledhill)
Subject: B18: Problem with ChoosePixelFormat function
6 Apr 1998 20:28:05 -0700
Message-ID: <01bd6167$f0fd4da0$LocalHost.cygnus.gnu-win32@registerlineone.net>
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To: "GNU-Win32" <gnu-win32 AT cygnus DOT com>

Hello,

I have been trying to use MESA 2.6 (a free OpenGL like library, built from c
source code)  This contains a delivery of a GLUT (GL UTilities) library.
www.ssec.wisc.edu/~brianp/Mesa.html )

When I build this with CYGWIN32 b18 and try to run  the demos I obtain a
runtime error message generated by the function ChoosePixelFormat.  This
function returns 0 when the following input is given.

(gdb) p pfd
$1 = {nSize = 1125, nVersion = 112, dwFlags = 7341157, iPixelType = 84 'T',
  cColorBits = 255 'ÿ', cRedBits = 0 '\000', cRedShift = 240 'ð',
  cGreenBits = 209 'Ñ', cGreenShift = 174 '®', cBlueBits = 0 '\000',
  cBlueShift = 240 'ð', cAlphaBits = 83 'S', cAlphaShift = 17 '\021',
  cAccumBits = 0 '\000', cAccumRedBits = 240 'ð', cAccumGreenBits = 0
'\000',
  cAccumBlueBits = 0 '\000', cAccumAlphaBits = 0 '\000', cDepthBits = 200
'È',
  cStencilBits = 210 'Ò', cAuxBuffers = 8 '\b', iLayerType = 213 'Õ',
  bReserved = 7 '\a', dwLayerMask = 117178426, dwVisibleMask = 117178450,
  dwDamageMask = 117178474}

Is this bad input?
Is it a bug in b18?

Best Regards,
Mike.


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