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occlusion_query.h
Go to the documentation of this file.
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/*
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** ClanLib SDK
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** Copyright (c) 1997-2011 The ClanLib Team
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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**
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** Note: Some of the libraries ClanLib may link to may have additional
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** requirements or restrictions.
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**
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** File Author(s):
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**
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** Harry Storbacka
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*/
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#pragma once
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#include "../api_display.h"
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#include "../../Core/System/sharedptr.h"
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#include "
graphic_context.h
"
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class
CL_OcclusionQuery_Impl;
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class
CL_GraphicContext
;
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class
CL_OcclusionQueryProvider
;
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class
CL_API_DISPLAY
CL_OcclusionQuery
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{
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public
:
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CL_OcclusionQuery
();
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CL_OcclusionQuery
(
CL_GraphicContext
&context);
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virtual
~
CL_OcclusionQuery
();
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public
:
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bool
is_null
()
const
{
return
!impl; }
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void
throw_if_null()
const
;
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int
get_result();
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bool
is_result_ready();
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CL_OcclusionQueryProvider
*get_provider()
const
;
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public
:
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void
begin();
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void
end();
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private
:
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CL_SharedPtr<CL_OcclusionQuery_Impl> impl;
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};
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