C++ (Cpp) ogl_lock_region_nonbb_readwrite_nonfboの例

コード例 #1

ファイル: ogl_lock.c プロジェクト: liballeg/allegro5

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;
}

コード例 #2

static void 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)
{
   ALLEGRO_BITMAP *old_target = NULL;

   /* Create an FBO if there isn't one. */
   if (!ogl_bitmap->fbo_info) {
      old_target = al_get_target_bitmap();
      bitmap->locked = false; // FIXME: hack :(
      if (al_is_bitmap_drawing_held())
         al_hold_bitmap_drawing(false);

      al_set_target_bitmap(bitmap); // This creates the fbo
      bitmap->locked = true;
   }

   if (ogl_bitmap->fbo_info) {
      ogl_lock_region_nonbb_readwrite_fbo(bitmap, ogl_bitmap,
         x, gl_y, w, h, format);
   }
   else {
      ogl_lock_region_nonbb_readwrite_nonfbo(bitmap, ogl_bitmap,
         x, gl_y, w, h, format);
   }

   if (old_target) {
      al_set_target_bitmap(old_target);
   }
}