00001 /* 00002 ** ClanLib SDK 00003 ** Copyright (c) 1997-2011 The ClanLib Team 00004 ** 00005 ** This software is provided 'as-is', without any express or implied 00006 ** warranty. In no event will the authors be held liable for any damages 00007 ** arising from the use of this software. 00008 ** 00009 ** Permission is granted to anyone to use this software for any purpose, 00010 ** including commercial applications, and to alter it and redistribute it 00011 ** freely, subject to the following restrictions: 00012 ** 00013 ** 1. The origin of this software must not be misrepresented; you must not 00014 ** claim that you wrote the original software. If you use this software 00015 ** in a product, an acknowledgment in the product documentation would be 00016 ** appreciated but is not required. 00017 ** 2. Altered source versions must be plainly marked as such, and must not be 00018 ** misrepresented as being the original software. 00019 ** 3. This notice may not be removed or altered from any source distribution. 00020 ** 00021 ** Note: Some of the libraries ClanLib may link to may have additional 00022 ** requirements or restrictions. 00023 ** 00024 ** File Author(s): 00025 ** 00026 ** Harry Storbacka 00027 */ 00028 00031 00032 #pragma once 00033 00034 #include "../api_display.h" 00035 #include "../../Core/System/sharedptr.h" 00036 00040 class CL_API_DISPLAY CL_OcclusionQueryProvider 00041 { 00044 00045 public: 00046 virtual ~CL_OcclusionQueryProvider() { return; } 00047 00051 00052 public: 00054 virtual bool is_result_ready() const = 0; 00055 00057 virtual int get_result() const = 0; 00058 00062 00063 public: 00065 virtual void begin() = 0; 00066 00068 virtual void end() = 0; 00069 00071 virtual void create() = 0; 00072 00074 virtual void destroy() = 0; 00075 00079 00080 private: 00082 }; 00083