Copyright	(c) Sven Panne 2004-2019 Lars Corbijn 2004-2016
License	BSD3
Maintainer	Sven Panne <svenpanne@gmail.com>
Stability	stable
Portability	portable
Safe Haskell	Safe-Inferred
Language	Haskell2010

Graphics.Rendering.OpenGL.GL.QueryObjects

Contents

Description

This module corresponds to section 4.2 (Query Objects and Asynchronous Queries) of the OpenGL 4.4 specs.

Synopsis

Creating and Delimiting Queries

Instances details

GeneratableObjectName QueryObject Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObject Methods genObjectName :: MonadIO m => m QueryObject genObjectNames :: MonadIO m => Int -> m [QueryObject]
ObjectName QueryObject Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObject Methods isObjectName :: MonadIO m => QueryObject -> m Bool deleteObjectName :: MonadIO m => QueryObject -> m () deleteObjectNames :: MonadIO m => [QueryObject] -> m ()
CanBeLabeled QueryObject Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObject Methods objectLabel :: QueryObject -> StateVar (Maybe String) Source #
Show QueryObject Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObject Methods showsPrec :: Int -> QueryObject -> ShowS show :: QueryObject -> String showList :: [QueryObject] -> ShowS
Eq QueryObject Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObject Methods (==) :: QueryObject -> QueryObject -> Bool (/=) :: QueryObject -> QueryObject -> Bool
Ord QueryObject Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObject Methods compare :: QueryObject -> QueryObject -> Ordering (<) :: QueryObject -> QueryObject -> Bool (<=) :: QueryObject -> QueryObject -> Bool (>) :: QueryObject -> QueryObject -> Bool (>=) :: QueryObject -> QueryObject -> Bool max :: QueryObject -> QueryObject -> QueryObject min :: QueryObject -> QueryObject -> QueryObject

Constructors

SamplesPassed
AnySamplesPassed
AnySamplesPassedConservative
TimeElapsed
PrimitivesGenerated QueryIndex
TransformFeedbackPrimitivesWritten QueryIndex

Instances details

Show QueryTarget Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObjects Methods showsPrec :: Int -> QueryTarget -> ShowS show :: QueryTarget -> String showList :: [QueryTarget] -> ShowS
Eq QueryTarget Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObjects Methods (==) :: QueryTarget -> QueryTarget -> Bool (/=) :: QueryTarget -> QueryTarget -> Bool
Ord QueryTarget Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObjects Methods compare :: QueryTarget -> QueryTarget -> Ordering (<) :: QueryTarget -> QueryTarget -> Bool (<=) :: QueryTarget -> QueryTarget -> Bool (>) :: QueryTarget -> QueryTarget -> Bool (>=) :: QueryTarget -> QueryTarget -> Bool max :: QueryTarget -> QueryTarget -> QueryTarget min :: QueryTarget -> QueryTarget -> QueryTarget

Convenience function for an exception-safe combination of beginQuery and endQuery.

Query Target Queries

class Storable a => QueryResult a Source #

Minimal complete definition

getQueryObjectv

Instances details

QueryResult GLint Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObjects Methods getQueryObjectv :: GLuint -> GLenum -> Ptr GLint -> IO ()
QueryResult GLint64 Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObjects Methods getQueryObjectv :: GLuint -> GLenum -> Ptr GLint64 -> IO ()
QueryResult GLuint Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObjects Methods getQueryObjectv :: GLuint -> GLenum -> Ptr GLuint -> IO ()
QueryResult GLuint64 Source #
Instance details Defined in Graphics.Rendering.OpenGL.GL.QueryObjects Methods getQueryObjectv :: GLuint -> GLenum -> Ptr GLuint64 -> IO ()

Record the time after all previous commands on the GL client and server state and the framebuffer have been fully realized

timestamp :: GettableStateVar GLuint64 Source #

Contains the GL time after all previous commands have reached the GL server but have not yet necessarily executed.