MeiChun-Lo / pixeltoaster

Automatically exported from code.google.com/p/pixeltoaster
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DirectX implementation won't open window on machine without HAL device #70

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago
1. Have a windows server with terminal services 
2. Have a remote desktop session to that machine
3. Try to toast some pixels

DirectX fails to create the device as it only tries the HAL D3D device, and
not the reference device.  However, only the reference device type is
available in this situation.

So, we might try to come up with a strategy to fall back to the reference
device in this case.  What format will be used?

Original issue reported on code.google.com by bram.deg...@gmail.com on 23 May 2008 at 8:58

GoogleCodeExporter commented 9 years ago
so the problem here is that we want to fix your thing without introducing the
following behavior:

1. request floating point color
2. no hardware support for floating point
3. you get reference device!

i'd rather it was,

1. request floating point color
2. no hardware support for floating point
3. request truecolor modes
4. no support
5. *maybe* drop to reference

reason its a maybe is that pixeltoaster promises to the user that it is going 
to be
fast, i'd not want somebody to get a reference device when they were not 
expecting to

so if you could add your reference device thing, make sure that it is done 
after the
checking of all hardware available options

when you do, it should be floating point color if the user requested
FloatingPointColor output, or argb8888 if he requested TrueColor output

cheers

Original comment by glenn.fi...@gmail.com on 23 May 2008 at 4:33

GoogleCodeExporter commented 9 years ago
Hi Glenn,

I totally agree with the behavior you describe.  I created a patch that works 
OK on
that machine without a HAL device.  It will only try the REF device when 
everything
else fails.  Funny enough, the REF device was not able to create the floating 
point
device I was requesting, so it had to fall back on the argb8888 one.

This patch will automatically try the REF device if all else fails, but maybe 
that's
not appropriate.  Maybe it should only try the REF device when no HAL device is 
present?

Bram

Original comment by bram.deg...@gmail.com on 6 Jun 2008 at 11:54

Attachments:

GoogleCodeExporter commented 9 years ago
This patch seems to work, except for this weirdest thing.  The machine I'm 
talking
about is a 64-bit windows 2003 server.  When I compile and run the application 
in
64-bit mode, the REF device is correctly created.  But in 32-bit mode, even 
this fails!

Original comment by bram.deg...@gmail.com on 17 Jun 2008 at 11:21

GoogleCodeExporter commented 9 years ago
I've commited the patch of comment 2 to the trunk (r143).

Original comment by bram.deg...@gmail.com on 3 Jul 2008 at 5:59