196 template <typename OPSET, typename PARAM, typename PATH=PathProcsNull<CFF2CSInterpEnv, PARAM> >
197 struct CFF2CSOpSet : CSOpSet<BlendArg, OPSET, CFF2CSInterpEnv, PARAM, PATH>
199   static void process_op (OpCode op, CFF2CSInterpEnv &env, PARAM& param)  in process_op()
205 	if (unlikely (env.argStack.peek ().blending ()))  in process_op()
207 	  env.set_error ();  in process_op()
210 	SUPER::process_op (op, env, param);  in process_op()
214 	OPSET::process_blend (env, param);  in process_op()
218 	if (unlikely (env.argStack.peek ().blending ()))  in process_op()
220 	  env.set_error ();  in process_op()
223 	OPSET::process_vsindex (env, param);  in process_op()
227 	SUPER::process_op (op, env, param);  in process_op()
231   static void process_blend (CFF2CSInterpEnv &env, PARAM& param)  in process_blend()
235     env.process_blend ();  in process_blend()
236     k = env.get_region_count ();  in process_blend()
237     n = env.argStack.pop_uint ();  in process_blend()
239     unsigned int start = env.argStack.get_count () - ((k+1) * n);  in process_blend()
241     if (unlikely (start > env.argStack.get_count ()))  in process_blend()
243       env.set_error ();  in process_blend()
248       const hb_array_t<const BlendArg>	blends = env.argStack.get_subarray (start + n + (i * k));  in process_blend()
249       env.argStack[start + i].set_blends (n, i, k, blends);  in process_blend()
253     env.argStack.pop (k * n);  in process_blend()
256   static void process_vsindex (CFF2CSInterpEnv &env, PARAM& param)  in process_vsindex()
258     env.process_vsindex ();  in process_vsindex()
259     env.clear_args ();  in process_vsindex()
263   typedef CSOpSet<BlendArg, OPSET, CFF2CSInterpEnv, PARAM, PATH>  SUPER;