ddraw example modify

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pabloreda

Joined: 24 Jan 2007
Posts: 117
Location: Argentina

pabloreda 31 Jan 2007, 20:34

Hi
I try to modify the ddraw example
The .exe works but when exit crash (only the app)

anyone can helpme?

Description:	.asm and .exe files	Download
Filename:	fasm.zip
Filesize:	3.04 KB
Downloaded:	336 Time(s)

31 Jan 2007, 20:34

madmatt

Joined: 07 Oct 2003
Posts: 1045
Location: Michigan, USA

madmatt 31 Jan 2007, 22:28

After looking at the Dr. Watson crash dump, seems to be crashing right
where the arrow (->) indicates. Also, when clearing the surface, you should use "ddsd.lPitch" to get to the next scan line.

Code:

SYSREDRAW:
        push edi esi eax
;       cominvk DDSPrimary,LockSurface,NULL,ddsd,DDLOCK_WAIT,NULL
        [*HERE*] -> cominvk DDSBack,LockSurface,NULL,ddsd,DDLOCK_WAIT,NULL  
        ;       DDINVOKE        WaitForVerticalBlank, lpDD, DDWAITVB_BLOCKBEGIN, NULL
    mov   edi, [ddsd.lpSurface]         ;--- copy vframe->video
    mov   esi, SYSFRAME
    mov   ecx, $c0000
    cld
    rep movsd
;       cominvk DDSPrimary,UnlockSurface,NULL
        cominvk DDSBack,UnlockSurface,NULL      

        ;cominvk DDSPrimary,Blt,0,DDSBack,0,DDBLT_WAIT,0
        cominvk DDSPrimary,Flip,0,DDFLIP_WAIT
        pop eax esi edi
        ret

[/code]

31 Jan 2007, 22:28

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 31 Jan 2007, 23:35

pabloreda: always after calling procedure, check manuals if it can return error, and if it can then CHECK IT!!!!!!!!!!

31 Jan 2007, 23:35

pabloreda

Joined: 24 Jan 2007
Posts: 117
Location: Argentina

pabloreda 31 Jan 2007, 23:38

Thanks...

I not like waste cpu clock !!
I pay to windows to check !!! Smile

I need speed...

@madmat but the prg work !!

31 Jan 2007, 23:38

vid
Verbosity in development

Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia

vid 01 Feb 2007, 06:09

pabloreda: this doesn't cost you much. users don't see any difference. But instead, if there is an error and goes uncatched, your app will likely crash, and then users WILL see the difference

01 Feb 2007, 06:09

pabloreda

Joined: 24 Jan 2007
Posts: 117
Location: Argentina

pabloreda 01 Feb 2007, 16:02

ok, now work,

Any know documentation about win event loop, messages ?

01 Feb 2007, 16:02

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