oglplus::QueryOps Class Reference

Wrapper for asynchronous query functions. More...

#include </home/chochlik/devel/oglplus/include/oglplus/query.hpp>

Inheritance diagram for oglplus::QueryOps:

Classes
class	Execution
	A helper class automatically executing a query. More...

Public Types
typedef QueryTarget	Target
	Query bind target.

Public Member Functions
void	Begin (Target target) const
	Begin the query on the specified target. More...
void	End (Target target) const
	End the query on the specified target. More...
void	Counter (Target target) const
	Do a counter query on the specified target. More...
void	Timestamp (void) const
	Do a timestamp query. More...
bool	ResultAvailable (void) const
	Returns true if the query result is available. More...
void	Result (GLint &result) const
	Get the query result. More...
void	Result (GLuint &result) const
	Get the query result. More...
void	Result (GLint64 &result) const
	Get the query result. More...
void	Result (GLuint64 &result) const
	Get the query result. More...
template<typename ResultType >
void	WaitForResult (ResultType &result) const
	Waits for and queries the result.
template<typename ResultType >
Execution< ResultType >	Execute (Target target, ResultType &result) const
	Executes the query on the specified target and gets the result. More...

Detailed Description

Wrapper for asynchronous query functions.

Note

Do not use this class directly, use Query instead.

Related OpenGL symbols:

glGenQueries glDeleteQueries glIsQuery

Member Function Documentation

void oglplus::QueryOps::Begin

(

Target

target)

const

Begin the query on the specified target.

Related OpenGL symbols:

glBeginQuery

References oglplus::EnumValueName(), and OGLPLUS_VERIFY.

void oglplus::QueryOps::Counter

(

Target

target)

const

Do a counter query on the specified target.

Related OpenGL symbols:

glQueryCounter

References oglplus::EnumValueName(), and OGLPLUS_VERIFY.

Referenced by Timestamp().

void oglplus::QueryOps::End

(

Target

target)

const

End the query on the specified target.

Related OpenGL symbols:

glEndQuery

References oglplus::EnumValueName(), and OGLPLUS_VERIFY.

template<typename ResultType >

Execution<ResultType> oglplus::QueryOps::Execute	(	Target	target,
		ResultType &	result
	)		const

Executes the query on the specified target and gets the result.

This function creates an instance of the Execution class which begins a query on the specified target when it is constructed and ends this query and gets its result when it is destroyed.

void oglplus::QueryOps::Result

(

GLint &

result)

const

Get the query result.

Related OpenGL symbols:

glGetQueryObject GL_QUERY_RESULT

References OGLPLUS_VERIFY.

Referenced by WaitForResult().

void oglplus::QueryOps::Result

(

GLuint &

result)

const

Get the query result.

Related OpenGL symbols:

glGetQueryObject GL_QUERY_RESULT

References OGLPLUS_VERIFY.

void oglplus::QueryOps::Result

(

GLint64 &

result)

const

Get the query result.

Requires OpenGL 3.3 or the GL_ARB_timer_query extension.

Related OpenGL symbols:

glGetQueryObject GL_QUERY_RESULT

References OGLPLUS_VERIFY.

void oglplus::QueryOps::Result

(

GLuint64 &

result)

const

Get the query result.

Requires OpenGL 3.3 or the GL_ARB_timer_query extension.

Related OpenGL symbols:

glGetQueryObject GL_QUERY_RESULT

References OGLPLUS_VERIFY.

bool oglplus::QueryOps::ResultAvailable

(

void

)

const

Returns true if the query result is available.

Related OpenGL symbols:

glGetQueryObject GL_QUERY_RESULT_AVAILABLE

References OGLPLUS_VERIFY.

Referenced by WaitForResult().

void oglplus::QueryOps::Timestamp

(

void

)

const

Do a timestamp query.

Related OpenGL symbols:

glQueryCounter GL_TIMESTAMP

References Counter(), and oglplus::Timestamp.

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The documentation for this class was generated from the following file:

• /home/chochlik/devel/oglplus/include/oglplus/query.hpp