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Direct Draw from JEDI does not work under 64bit
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Topic: Direct Draw from JEDI does not work under 64bit (Read 3766 times)
Key-Real
Full Member
Posts: 185
Direct Draw from JEDI does not work under 64bit
«
on:
April 29, 2021, 06:34:12 pm »
Hi,
I have DirectDraw Headers from JEDI.
They work with 32bit compilation, but not with 64bit(It compiles but if run: CreateSurface fails).
I have setup a test:
http://www.sistavip.com/pub/ddrawtest.zip
Please Help
Logged
Key-Real
Full Member
Posts: 185
Re: Direct Draw from JEDI does not work under 64bit
«
Reply #1 on:
April 29, 2021, 07:50:58 pm »
If I use original Delphi Headers it works on Delphi 32&64bit.
But on FPC only 32bit, not 64bit(Same Problem as by JEDI Headers)
my Test:
http://www.sistavip.com/pub/ddraw_delphiOK.zip
Logged
engkin
Hero Member
Posts: 3112
Re: Direct Draw from JEDI does not work under 64bit
«
Reply #2 on:
April 29, 2021, 08:06:23 pm »
Quick test shows that your SizeOf( TDDSURFACEDESC ) is wrong. It should be 120 bytes on Win64 that is based on the one in unit p_ddraw (included with FPC).
I noticed your have:
Code: Pascal
[Select]
[+]
[-]
{$MINENUMSIZE 4}
{$ALIGN ON}
in your DDraw unit.
Replacing it with:
Code: Pascal
[Select]
[+]
[-]
{$PACKRECORDS c}
AND removing "packed" from two records:
Code: Pascal
[Select]
[+]
[-]
...
{$PACKRECORDS c}
{engkin}
{ $MINENUMSIZE 4}
{engkin}
{ $ALIGN ON}
...
_DDCOLORKEY
=
{engkin}
{packed}
record
...
_DDSURFACEDESC
=
{engkin}
{packed}
record
...
fixes the problem.
Prabably you need to remove it from all the records.
Edit:
Attached DDraw unit.
«
Last Edit: April 29, 2021, 08:19:57 pm by engkin
»
Logged
Key-Real
Full Member
Posts: 185
Re: Direct Draw from JEDI does not work under 64bit
«
Reply #3 on:
April 29, 2021, 08:27:06 pm »
Thx to engkin
The JEDI ddraw works now for fpc 32 & 64 bit.
But under Delphi only 32bit.
Do I need other changes to make it works for Delphi 64?
Logged
engkin
Hero Member
Posts: 3112
Re: Direct Draw from JEDI does not work under 64bit
«
Reply #4 on:
April 29, 2021, 08:43:36 pm »
I don't have Delphi, so I can only suggest to use the usual $ifdef way.
Logged
Key-Real
Full Member
Posts: 185
Re: Direct Draw from JEDI does not work under 64bit
«
Reply #5 on:
April 29, 2021, 09:14:36 pm »
Perhaps you can Check the second Test, IT works for Delphi 32&64 but only for fpc33
Logged
Key-Real
Full Member
Posts: 185
Re: Direct Draw from JEDI does not work under 64bit
«
Reply #6 on:
April 29, 2021, 10:48:44 pm »
Perhaps ist easyer to go from the Delphi Implementation to fpc.
Check the second Test.
Thx, engkin
Logged
engkin
Hero Member
Posts: 3112
Re: Direct Draw from JEDI does not work under 64bit
«
Reply #7 on:
April 29, 2021, 11:35:21 pm »
I think this should work. Give it a try. It is based on the Delphi project you shared above.
I noticed the project itself has issues, but not related to this.
Logged
Key-Real
Full Member
Posts: 185
Re: Direct Draw from JEDI does not work under 64bit
«
Reply #8 on:
April 30, 2021, 05:39:24 pm »
engkin,
thx it works now under fpc and dephi 32&64bit.
what issues you found in the tests?
Logged
engkin
Hero Member
Posts: 3112
Re: Direct Draw from JEDI does not work under 64bit
«
Reply #9 on:
April 30, 2021, 09:06:20 pm »
Compared to the previous test, it did not close as the relevant message was commented out, and the caption of the form was random characters.
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Direct Draw from JEDI does not work under 64bit
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