al_draw_bitmap speed?

Alianix

Just curious does anyone have an idea whether in general al_draw_bitmap or al_draw_bitmap_region is faster if the target bitmap is the same and the source bitmap is the same?

GullRaDriel

Just make a bench you lazy fool.

Alianix

Gosh man you're a genius, but I think you knew that already!

SiegeLord

Let me answer this question with an excerpt from Allegro's source:

#SelectExpand
  1/* Function: al_draw_tinted_bitmap
  2 */
  3void al_draw_tinted_bitmap(ALLEGRO_BITMAP *bitmap, ALLEGRO_COLOR tint,
  4   float dx, float dy, int flags)
  5{
  6   ASSERT(bitmap);
  7   al_draw_tinted_bitmap_region(bitmap, tint, 0, 0,
  8      bitmap->w, bitmap->h, dx, dy, flags);
  9}
 10
 11
 12/* Function: al_draw_bitmap
 13 */
 14void al_draw_bitmap(ALLEGRO_BITMAP *bitmap, float dx, float dy, int flags)
 15{
 16   al_draw_tinted_bitmap(bitmap, solid_white, dx, dy, flags);
 17}
 18
 19
 20/* Function: al_draw_bitmap_region
 21 */
 22void al_draw_bitmap_region(ALLEGRO_BITMAP *bitmap,
 23   float sx, float sy, float sw, float sh, float dx, float dy, int flags)
 24{
 25   al_draw_tinted_bitmap_region(bitmap, solid_white, sx, sy, sw, sh,
 26      dx, dy, flags);
 27}

Alianix

That explains it, thank you Siege

Thread #610497. Printed from Allegro.cc