static void _bitmap_drawer(ALLEGRO_BITMAP *bitmap, ALLEGRO_COLOR tint,
float sx, float sy, float sw, float sh, int flags)
{
ALLEGRO_BITMAP *dest = al_get_target_bitmap();
ALLEGRO_DISPLAY *display = _al_get_bitmap_display(dest);
ASSERT(bitmap->parent == NULL);
ASSERT(!(flags & (ALLEGRO_FLIP_HORIZONTAL | ALLEGRO_FLIP_VERTICAL)));
ASSERT(bitmap != dest && bitmap != dest->parent);
/* If destination is memory, do a memory blit */
if (al_get_bitmap_flags(dest) & ALLEGRO_MEMORY_BITMAP ||
_al_pixel_format_is_compressed(al_get_bitmap_format(dest))) {
_al_draw_bitmap_region_memory(bitmap, tint, sx, sy, sw, sh, 0, 0, flags);
}
else {
/* if source is memory or incompatible */
if ((al_get_bitmap_flags(bitmap) & ALLEGRO_MEMORY_BITMAP) ||
(!al_is_compatible_bitmap(bitmap)))
{
if (display && display->vt->draw_memory_bitmap_region) {
display->vt->draw_memory_bitmap_region(display, bitmap,
sx, sy, sw, sh, flags);
}
else {
_al_draw_bitmap_region_memory(bitmap, tint, sx, sy, sw, sh, 0, 0, flags);
}
}
else {
/* Compatible display bitmap, use full acceleration */
bitmap->vt->draw_bitmap_region(bitmap, tint, sx, sy, sw, sh, flags);
}
}
}
static mrb_value
bitmap_compatible(mrb_state *mrb, mrb_value self)
{
ALLEGRO_BITMAP *b;
Check_Destroyed(mrb, self, bitmap, b);
return mrb_bool_value(al_is_compatible_bitmap(b));
}
static int allua_Bitmap_is_compatible(lua_State * L)
{
ALLUA_bitmap bitmap = allua_check_bitmap(L, 1);
lua_pushboolean(L, al_is_compatible_bitmap(bitmap));
return 1;
}
/**
Checks if a bitmap is compatible with the given display.
@return true if compatible.
*/
bool isCompatible() const {
return al_is_compatible_bitmap(get());
}
