al_is_compatible_bitmap(3)al_is_compatible_bitmap(3)NAMEal_is_compatible_bitmap - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro.h>
bool al_is_compatible_bitmap(ALLEGRO_BITMAP *bitmap)
DESCRIPTION
D3D and OpenGL allow sharing a texture in a way so it can be used for
multiple windows. Each ALLEGRO_BITMAP(3) created with al_create_bit‐
map(3) however is usually tied to a single ALLEGRO_DISPLAY. This func‐
tion can be used to know if the bitmap is compatible with the given
display, even if it is a different display to the one it was created
with. It returns true if the bitmap is compatible (things like a
cached texture version can be used) and false otherwise (blitting in
the current display will be slow).
The only time this function is useful is if you are using multiple win‐
dows and need accelerated blitting of the same bitmaps to both.
Returns true if the bitmap is compatible with the current display,
false otherwise. If there is no current display, false is returned.
Allegro reference manualal_is_compatible_bitmap(3)