static bool ogl_lock_region_nonbb_readwrite(
ALLEGRO_BITMAP *bitmap, ALLEGRO_BITMAP_EXTRA_OPENGL *ogl_bitmap,
int x, int gl_y, int w, int h, int format, bool* restore_fbo)
{
bool ok;
ASSERT(bitmap->parent == NULL);
ASSERT(bitmap->locked == false);
ASSERT(_al_get_bitmap_display(bitmap) == al_get_current_display());
/* Try to create an FBO if there isn't one. */
*restore_fbo =
_al_ogl_setup_fbo_non_backbuffer(_al_get_bitmap_display(bitmap), bitmap);
if (ogl_bitmap->fbo_info) {
ALLEGRO_DEBUG("Locking non-backbuffer READWRITE with fbo\n");
ok = ogl_lock_region_nonbb_readwrite_fbo(bitmap, ogl_bitmap,
x, gl_y, w, h, format);
}
else {
ALLEGRO_DEBUG("Locking non-backbuffer READWRITE no fbo\n");
ok = ogl_lock_region_nonbb_readwrite_nonfbo(bitmap, ogl_bitmap,
x, gl_y, w, h, format);
}
return ok;
}
void _al_ogl_setup_fbo(ALLEGRO_DISPLAY *display, ALLEGRO_BITMAP *bitmap)
{
ALLEGRO_BITMAP_EXTRA_OPENGL *ogl_bitmap;
if (bitmap->parent)
bitmap = bitmap->parent;
ogl_bitmap = bitmap->extra;
/* We can't return here. Target's FBO can be taken away by locking
* a lot of bitmaps consecutively.
* Also affects ex_multiwin; resizing one window affects the other.
*/
if (false && display->ogl_extras->opengl_target == bitmap)
return;
if (ogl_bitmap->is_backbuffer)
setup_fbo_backbuffer(display, bitmap);
else
_al_ogl_setup_fbo_non_backbuffer(display, bitmap);
}
