GP2X Sdl App Crash After 35-60 Seconds

[michu]

hey all.. well im frustated.. i use the devkitGP2X.rar (Octoate's GP2x toolchain (2006/03/06)).. my app is working fine on windows, on my gp2x my app will freeze after 35-60 seconds after the start.. here is my code:

void drawSprite(SDL_Surface* imageSurface, SDL_Surface* screenSurface, int srcX, int srcY, int dstX, int dstY, int width, int height)
{
	SDL_Rect srcRect;
	SDL_Rect dstRect;
	
	srcRect.x = srcX;
	srcRect.y = srcY;
	srcRect.w = width;
	srcRect.h = height;

	dstRect.x = dstX;
	dstRect.y = dstY; 
	dstRect.w = width;
	dstRect.h = height;  

	SDL_BlitSurface(imageSurface, &srcRect, screenSurface, &dstRect);
}


//... main()...


	atexit( cleanUp );
    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0)
  returnToOS(1);
 
	screen = SDL_SetVideoMode(SCREEN_XRES, SCREEN_YRES, 32, SDL_DOUBLEBUF | SDL_HWSURFACE);//SDL_SWSURFACE);
	if (!screen)
	{
  fprintf(stderr, "Couldn't set video mode: %s\n", SDL_GetError());
  returnToOS(1);
	}

	SDL_JoystickOpen(0);
	SDL_ShowCursor(SDL_DISABLE);

	while (!done)
	{  
  //   printf("sdl event...\n");
  while( SDL_PollEvent( &event ) ){
  	keyHandler(event);
  }
    
  tim2 = time(NULL);
  fps=(int)(frame/difftime(tim2,tim));

  //rotate the car
  playerCar.carRoto = rotozoomSurface(playerCar.carBitmap, playerCar.angle, 1, 1);

  sprintf(HUDtext, "frame:%i, fps:%i, time:%i", frame, fps, (int)difftime(tim2,tim));
  HUD = TTF_RenderText_Solid(font, HUDtext, HUDcol);

  drawSprite(mapBitmap, screen, (int)mapOffsetX, (int)mapOffsetY, 0, 0, SCREEN_XRES, SCREEN_YRES);
  drawSprite(playerCar.carRoto, screen, 0, 0, (int)playerCar.xpos, (int)playerCar.ypos, playerCar.carRoto->w, playerCar.carRoto->h);
  drawSprite(HUD, screen, 0, 0, 0, 0, HUD->w, HUD->h);

/*  if ( SDL_MUSTLOCK(screen) ) {
  	SDL_UnlockSurface(screen);
  }
*/
        SDL_Flip(screen);

  frame++;
	}

any hints? thanks in advance
michu

 

[chimpoid]

You init the screen at 32bit. That might be causing it hassle. Try 16. I think default may be 16bit but HW_SDL can handle 32bit. (Best to wait for someone who knows about the HW_SDL side of things)
Rotozoomer uses floats (I believe) that's heavy also, with scaling added I was locking up my pc within a very short time when I tested it.
Looks like a leak somewhere but I don't see it. Too tired atm to read it well. I'll look at it again in the morning and see if something comes up.

 

[michu]

meep! my bad...

a HUD = TTF_RenderText_Solid(font, HUDtext, HUDcol);

needs also a sdl_freesurface()

 

[paeryn]

You init the screen at 32bit. That might be causing it hassle. Try 16. I think default may be 16bit but HW_SDL can handle 32bit. (Best to wait for someone who knows about the HW_SDL side of things)
Rotozoomer uses floats (I believe) that's heavy also, with scaling added I was locking up my pc within a very short time when I tested it.
Looks like a leak somewhere but I don't see it. Too tired atm to read it well. I'll look at it again in the morning and see if something comes up.

​

My HW SDL doesn't allow a 32-bit screen, I take a few liberties in cases like this and if you check the surface returned, you'll find it's given you a 16bit one.
Since the hardware doesn't support 32bit I should really create a shadow surface so that your app ends up with a sw surface that gets converted down on an SDL_Flip() or SDL_UpdateRects(). Thing is, the reason I wrote my HW version is to get as much speed as possible, and doing a full screen depth-reduction every frame will be quite slow.