basic app for direct graphics access

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pabloreda

Joined: 24 Jan 2007
Posts: 115
Location: Argentina

pabloreda 24 Jan 2007, 14:53

Hi,

I work in a new lang for programing, free, of course, called R4
The first stage is complete, in gcc+SDL I have a compiler/interpreter and a graphics library (in c) , you can see www.reda4.org
I work in the compiler to ASM and I need a basic framework for windows and DexOs www.dex4u.com first
I need fullscreen en 1024x768x32 with direct access to video memory (for make the graphics library in R4 too)
for win I try some examples in russian for use directx in fasm, but not is too clear.
any suggestions ?

thanks !!

Pablo

24 Jan 2007, 14:53

pabloreda

Joined: 24 Jan 2007
Posts: 115
Location: Argentina

pabloreda 26 Jan 2007, 12:34

I try to modify the ddraw example and write the backbuffer

how I get the address of memory for flip ?

I try this

Code:

..in bss section...

VFRAME rd 1024*768

...in code

paint:

mov ebx,VFRAME
mov eax,255 ; blue in 32 bits
mov [ebx],eax ; first pixel ?

cominvk DDSBack,BLT,0,VFRAME,0,DDBLT_WAIT,0
cominvk DDSPrimary,FLIP,0,DDFLIP_WAIT

then flash the screen but not pixel show

help, plis !

26 Jan 2007, 12:34

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly 26 Jan 2007, 23:11

http://win32assembly.online.fr/files/dc-ddraw.zip <- A MASM example that doens't show how to access a pointer to the back buffer surface but show how to get a pointer to primary surface, so with some adjustments you should be able to access your desired pointer.

26 Jan 2007, 23:11

madmatt

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

madmatt 27 Jan 2007, 00:37

You can go to my website where you'll find some directdraw examples. However, to recompile the examples you'll have to follow the instructions posted on the website. http://users.egl.net/talktomatt/default.html

27 Jan 2007, 00:37

pabloreda

Joined: 24 Jan 2007
Posts: 115
Location: Argentina

pabloreda 30 Jan 2007, 16:29

thanks...
I check later...

hola loco, tenes alguna pagina activa, vi una que estaba vieja...

30 Jan 2007, 16:29

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly 03 Feb 2007, 23:10

Quote:

hola loco, tenes alguna pagina activa, vi una que estaba vieja...

Quote:

Hello loco, do you have some active page, I saw one but it was old...
(I don't guarantee that the translation is 1:1 but it's very near)

Mine or about DirectDraw? Anyway I haven't got any active page Razz

Unfortunatelly the SDK of DirectX doesn't document DirectDraw anymore, you have to download the SDK for DirectX 7.0 or earlier.

If you were referring to my "blog" I'm considering supporting MSN 8 once for all (even knowing that it's a stupid patch...), since there is people that still download the ultra old patch.

Saludos!!

03 Feb 2007, 23:10

madmatt

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

madmatt 04 Feb 2007, 06:50

LocoDelAssembly: The latest windows SDK has the directdraw docs, and DirectVideo as well

04 Feb 2007, 06:50

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly 04 Feb 2007, 12:02

Thanks madmatt, I'll check it out.

04 Feb 2007, 12:02

madmatt

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

madmatt 04 Feb 2007, 15:24

Should warn you that the directdraw examples requires directx 9 to be installed because of the extra d3d9 drawing functions I put into my dll library.

04 Feb 2007, 15:24

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly 04 Feb 2007, 15:47

http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/ddraw7/directdraw7/ddover_7dx3.asp <- Here the docs

About http://www.microsoft.com/downloads/info.aspx?na=40&p=3&SrcDisplayLang=en&SrcCategoryId=&SrcFamilyId=484269E2-3B89-47E3-8EB7-1F2BE6D7123A&u=http%3a%2f%2fwww.microsoft.com%2fdownloads%2fdetails.aspx%3fFamilyId%3dE15438AC-60BE-41BD-AA14-7F1E0F19CA0D%26displaylang%3den (Windows® Server 2003 R2 Platform SDK ISO Download) there is no docs about DirectDraw, only DirectShow stuff... (which includes some details about DirectDraw but oriented to multimedia streamming)

BTW, there is no DirectVideo info on that SDK neither

04 Feb 2007, 15:47

pabloreda

Joined: 24 Jan 2007
Posts: 115
Location: Argentina

pabloreda 05 Feb 2007, 00:01

ok, thanks all
I have a work demo..
I publish in this week or next.. if anybody like see the code..

thanks to all again !!!

05 Feb 2007, 00:01

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