[SDL] How to write SMPEG call back function.

[Roberto Prieto]

Hello Laeeq,

I wrote this callback function, maybe it is not whatever you are looking 
for...but anyway, I post it here:

void UpdateMPEGFrame(SDL_Surface *buffer, Sint32 x, Sint32 y, Uint32 w, 
Uint32 h)

{

// if there is a filter selected...

if(iFXVideo!=FXSCREEN_NULL) IScreenFX->RenderFX(buffer,screen,iFXVideo);

// dump to screen

SDL_Flip(screen);

// Increase frame counter

iCurrentFrame++;

}


bye

----- Original Message ----- 
From: "Laeeq Khan" <laeeq_m_khan at hotmail.com>
To: <sdl at libsdl.org>
Sent: Sunday, July 24, 2005 3:32 AM
Subject: [SDL] How to write SMPEG call back function.


>I have successfully written some small examples with SMPEG library. In all 
>these examples I used NULL as call-back function pointer in 
>SMPEG_setdisplay(..., screen, NULL, NULL) call.
>
> The only examples of non-null call-back functions I can come across have 
> one line function body consisting of SDL_UpdateRect(screen, x, y, w, h);
>
> I need some guidance as to how to write a non-trivial call back function, 
> and use it in SMPEG_setdisplay() call.
>
> Any help is appreciated.
>
>
>
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