Graphics.Rendering.OpenGL.GL.QueryObjects

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

Creating and Delimiting Queries

data QueryObject

Instances

Eq QueryObject

Methods

(==) :: QueryObject -> QueryObject -> Bool

(/=) :: QueryObject -> QueryObject -> Bool

Ord 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

Show QueryObject

Methods

showsPrec :: Int -> QueryObject -> ShowS

show :: QueryObject -> String

showList :: [QueryObject] -> ShowS

ObjectName QueryObject

Methods

isObjectName :: MonadIO m => QueryObject -> m Bool

deleteObjectName :: MonadIO m => QueryObject -> m ()

deleteObjectNames :: MonadIO m => [QueryObject] -> m ()

GeneratableObjectName QueryObject

Methods

genObjectName :: MonadIO m => m QueryObject

genObjectNames :: MonadIO m => Int -> m [QueryObject]

CanBeLabeled QueryObject

Methods

objectLabel :: QueryObject -> StateVar (Maybe String)

type QueryIndex = GLuint

maxVertexStreams :: GettableStateVar QueryIndex

data QueryTarget

Constructors

SamplesPassed

AnySamplesPassed

AnySamplesPassedConservative

TimeElapsed

PrimitivesGenerated QueryIndex

TransformFeedbackPrimitivesWritten QueryIndex

Instances

Eq QueryTarget

Methods

(==) :: QueryTarget -> QueryTarget -> Bool

(/=) :: QueryTarget -> QueryTarget -> Bool

Ord QueryTarget

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

Show QueryTarget

Methods

showsPrec :: Int -> QueryTarget -> ShowS

show :: QueryTarget -> String

showList :: [QueryTarget] -> ShowS

beginQuery :: QueryTarget -> QueryObject -> IO ()

endQuery :: QueryTarget -> IO ()

withQuery :: QueryTarget -> QueryObject -> IO a -> IO a

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

Query Target Queries

currentQuery :: QueryTarget -> GettableStateVar (Maybe QueryObject)

queryCounterBits :: QueryTarget -> GettableStateVar GLsizei

Query Object Queries

queryResultAvailable :: QueryObject -> GettableStateVar Bool

class Storable a => QueryResult a

Minimal complete definition

getQueryObjectv

Instances

QueryResult GLint

Methods

getQueryObjectv :: GLuint -> GLenum -> Ptr GLint -> IO ()

QueryResult GLuint

Methods

getQueryObjectv :: GLuint -> GLenum -> Ptr GLuint -> IO ()

QueryResult GLint64

Methods

getQueryObjectv :: GLuint -> GLenum -> Ptr GLint64 -> IO ()

QueryResult GLuint64

Methods

getQueryObjectv :: GLuint -> GLenum -> Ptr GLuint64 -> IO ()

queryResult :: QueryResult a => QueryObject -> GettableStateVar a

Time Queries

timestampQuery :: QueryObject -> 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

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