[info-performer] setFBConfigId

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From: faculaganymede (faculaganymede++at++yahoo.com)
Date: 10/20/2003 15:38:02


PF Experts,

I am trying to configure my pfPipeWindow to 16-bit
grayscale using:

        pfPipeWindow::setFBConfigId( int id)

I know this is not portable and I should really use
pfPipeWindow::setFBConfigAttrs( int *), but I wanted
to see how my windows looks in 16-bit grayscale. Can
someone tell me what I should expect to see?

I did a "glxinfo" query to see what visuals are
available on our system/configuration (results are
shown at the end).

When I set pw->setFBConfigId(47), I get a black
screen/window. Same thing happens with visual id =48.

When I set pw->setFBConfigId(49), I get a yellow
colored window with vertical strips and earthsky is
blocked from view.

When I set pw->setFBConfigId(44), I get the following
run-time errors. Same thing happens with visual id
=45, 46.
-----------------------------------------
X Error of failed request: BadValue (integer
parameter out of range for operation)

  Major opcode of failed request: 146 (GLX)

  Minor opcode of failed request: 3
(X_GLXCreateContext)

  Value in failed request: 0x2c

  Serial number of failed request: 26

  Current serial number in output stream: 27

PF Notice: Caught SIGCHLD. Exiting
due to death of child with pid 36131.
-----------------------------------------

Does anyone know why this happens?

glxinfo -v results
---------------------------------------------
...
Visual ID: 44 depth=16 class=StaticGray
    bufferSize=16 level=0 renderType=rgba
doubleBuffer=0 stereo=0
    rgba: redSize=16 greenSize=0 blueSize=0
alphaSize=16
    auxBuffers=0 depthSize=0 stencilSize=0
    accum: redSize=0 greenSize=0 blueSize=0
alphaSize=0
    multiSample=0 multiSampleBuffers=0
    Opaque.
Visual ID: 45 depth=16 class=StaticGray
    bufferSize=16 level=0 renderType=rgba
doubleBuffer=1 stereo=0
    rgba: redSize=16 greenSize=0 blueSize=0
alphaSize=16
    auxBuffers=0 depthSize=0 stencilSize=0
    accum: redSize=0 greenSize=0 blueSize=0
alphaSize=0
    multiSample=0 multiSampleBuffers=0
    Opaque.
Visual ID: 46 depth=16 class=StaticGray
    bufferSize=16 level=0 renderType=rgba
doubleBuffer=1 stereo=0
    rgba: redSize=16 greenSize=0 blueSize=0
alphaSize=16
    auxBuffers=0 depthSize=31 stencilSize=1
    accum: redSize=0 greenSize=0 blueSize=0
alphaSize=0
    multiSample=0 multiSampleBuffers=0
    Opaque.
Visual ID: 47 depth=16 class=StaticGray
    bufferSize=16 level=0 renderType=rgba
doubleBuffer=0 stereo=1
    rgba: redSize=16 greenSize=0 blueSize=0
alphaSize=16
    auxBuffers=0 depthSize=0 stencilSize=0
    accum: redSize=0 greenSize=0 blueSize=0
alphaSize=0
    multiSample=0 multiSampleBuffers=0
    Opaque.
Visual ID: 48 depth=16 class=StaticGray
    bufferSize=16 level=0 renderType=rgba
doubleBuffer=1 stereo=0
    rgba: redSize=16 greenSize=0 blueSize=0
alphaSize=16
    auxBuffers=0 depthSize=32 stencilSize=8
    accum: redSize=0 greenSize=0 blueSize=0
alphaSize=0
    multiSample=0 multiSampleBuffers=0
    Opaque.
Visual ID: 49 depth=16 class=StaticGray
    bufferSize=16 level=0 renderType=rgba
doubleBuffer=1 stereo=1
    rgba: redSize=16 greenSize=0 blueSize=0
alphaSize=16
    auxBuffers=0 depthSize=0 stencilSize=0
    accum: redSize=0 greenSize=0 blueSize=0
alphaSize=0
    multiSample=0 multiSampleBuffers=0
    Opaque.
Visual ID: 4a depth=16 class=StaticGray
    bufferSize=16 level=0 renderType=rgba
doubleBuffer=0 stereo=0
    rgba: redSize=16 greenSize=0 blueSize=0
alphaSize=16
    auxBuffers=0 depthSize=32 stencilSize=8
    accum: redSize=32 greenSize=0 blueSize=0
alphaSize=32
    multiSample=0 multiSampleBuffers=0
    Opaque.
Visual ID: 4b depth=16 class=StaticGray
    bufferSize=16 level=0 renderType=rgba
doubleBuffer=1 stereo=0
    rgba: redSize=16 greenSize=0 blueSize=0
alphaSize=16
    auxBuffers=1 depthSize=32 stencilSize=8
    accum: redSize=32 greenSize=0 blueSize=0
alphaSize=32
    multiSample=0 multiSampleBuffers=0
    Opaque.
Visual ID: 4c depth=16 class=StaticGray
    bufferSize=16 level=0 renderType=rgba
doubleBuffer=0 stereo=1
    rgba: redSize=16 greenSize=0 blueSize=0
alphaSize=16
    auxBuffers=0 depthSize=32 stencilSize=8
    accum: redSize=32 greenSize=0 blueSize=0
alphaSize=32
    multiSample=0 multiSampleBuffers=0
    Opaque.
Visual ID: 4d depth=16 class=StaticGray
    bufferSize=16 level=0 renderType=rgba
doubleBuffer=1 stereo=1
    rgba: redSize=16 greenSize=0 blueSize=0
alphaSize=16
    auxBuffers=1 depthSize=32 stencilSize=8
    accum: redSize=32 greenSize=0 blueSize=0
alphaSize=32
    multiSample=0 multiSampleBuffers=0
    Opaque.
...
---------------------------------------------

=====
Thanks,
faculaganymede

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