occlusion_query_provider.h Source File - ClanLib SDK
Description: occlusion_query_provider.h Source File

occlusion_query_provider.h
1/*
2** ClanLib SDK
3** Copyright (c) 1997-2020 The ClanLib Team
4**
5** This software is provided 'as-is', without any express or implied
6** warranty. In no event will the authors be held liable for any damages
7** arising from the use of this software.
8**
9** Permission is granted to anyone to use this software for any purpose,
10** including commercial applications, and to alter it and redistribute it
11** freely, subject to the following restrictions:
12**
13** 1. The origin of this software must not be misrepresented; you must not
14** claim that you wrote the original software. If you use this software
15** in a product, an acknowledgment in the product documentation would be
16** appreciated but is not required.
17** 2. Altered source versions must be plainly marked as such, and must not be
18** misrepresented as being the original software.
19** 3. This notice may not be removed or altered from any source distribution.
20**
21** Note: Some of the libraries ClanLib may link to may have additional
22** requirements or restrictions.
23**
24** File Author(s):
25**
26** Harry Storbacka
27*/
28
29#pragma once
30
31#include <memory>
32
33namespace clan
34{
37
39 class OcclusionQueryProvider
40 {
41 public:
42 virtual ~OcclusionQueryProvider() { return; }
43
45 virtual bool is_result_ready() const = 0;
46
48 virtual int get_result() const = 0;
49
51 virtual void begin() = 0;
52
54 virtual void end() = 0;
55
57 virtual void create() = 0;
58 };
59
61}
clan::OcclusionQueryProvider
Occlusion query provider.
Definition occlusion_query_provider.h:40
clan::OcclusionQueryProvider::begin
virtual void begin()=0
Start occlusion query.
clan::OcclusionQueryProvider::is_result_ready
virtual bool is_result_ready() const =0
Returns true if the GPU is ready to return the result.
clan::OcclusionQueryProvider::create
virtual void create()=0
Create occlusion query object.
clan::OcclusionQueryProvider::get_result
virtual int get_result() const =0
Returns the result of the occlusion query.
clan::OcclusionQueryProvider::end
virtual void end()=0
Finish occlusion query.
clan::OcclusionQueryProvider::~OcclusionQueryProvider
virtual ~OcclusionQueryProvider()
Definition occlusion_query_provider.h:42
clan
Definition clanapp.h:36