Hello
I want an app that needs a colored mouse cursor. Seeing that the
SDL_SetCursor function doesn’t provide colored pointer, I think that
the only way to do that is blitting to the screen a small bitmap (32x32 for example)
in each mousemotion event.
Now my problem is simple, I find my way to display the mouse cursor
very very slow, because I redraw whole screen before displaying
the mouse pointer…
like this :
SDL_Rect mousepos;
SDL_Event ev;
SDL_Surface *screen; //video’s framebuffer surface
SDL_Surface *mouse; // mouse surface loaded from PNG file with pink
// colorkey
/… video init stuff in 800x600x16 and double buffered …/
mouse = IMG_Load(“cursor.png”);
mouse = SDL_DisplayFormat(mouse);
while(loop)
{
while(SDL_PollEvent(&ev))
{
switch(ev.type)
{
case SDL_MOUSEMOTION:
mousepos.x = ev.motion.x;
mousepos.y = ev.motion.y;
break;
case SDL_QUIT:
loop=0;
}
}
SDL_FillRect(screen, NULL, 0x0000);
SDL_BlitSurface(mouse, NULL, screen, &mousepos);
SDL_Flip(screen);
}
This small program, when heavily charged with graphics may be more slow,
because I need to redraw all.
Is there a best way to display a mouse pointer like this very quickly
?
thanks