[a5] Render some pixel data and question about threads in allegro5

[a5] Render some pixel data and question about threads in allegro5

komons

Member #11,083

June 2009

I have two questions. First:

How can I quickly render pixel data from unsigned char buffer with BGRA32 format into video bitmap?
At now I just copy every pixels by al_draw_pixel, but it's too slow.

Second question:

I think that a allegro threads is a solution for the first problem. But, my thread run just once. I created thread, start thread, and it still run once.

#SelectExpand
  1...
  2thread = al_create_thread( RedrawThread, this );
  3al_start_thread( thread );
  4...
  5
  6void* RedrawThread( ALLEGRO_THREAD* thread, void* arg )
  7{
  8  printf("1");
  9  return NULL;
 10}

Output:
1

Why?

J-Gamer

Member #12,491

January 2011

Your thread only runs once because it exits. Shouldn't you put a while-loop in there?

" There are plenty of wonderful ideas in The Bible, but God isn't one of them." - Derezo
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komons

Member #11,083

June 2009

Okay it work, thanks. Earlier loop just make screen black. This had to be just a coincidence.