HOpenGL Libraries (OpenGL package) Source code Contents Index

Graphics.Rendering.OpenGL.GL.Evaluators Portability portable Stability stable Maintainer sven.panne@aedion.de

Contents Evaluator-related Types Defining Evaluator Maps One-dimensional Evaluator Maps Two-dimensional Evaluator Maps Using Evaluator Maps Evaluating an Arbitrary Coordinate Value Using Evenly Spaced Coordinate Values Defining a Grid Evaluating a Whole Mesh Evaluating a Single Point on a Mesh Normal Generation

Description

This module corresponds to section 5.1 (Evaluators) of the OpenGL 2.1 specs.

Synopsis

type Order = GLint maxOrder :: GettableStateVar Order class Storable d => Domain d where evalCoord1 :: d -> IO () evalCoord1v :: Ptr d -> IO () evalCoord2 :: (d, d) -> IO () evalCoord2v :: Ptr d -> IO () data MapDescriptor d = MapDescriptor (d, d) Stride Order NumComponents class ControlPoint c class Map1 m where withNewMap1 :: (ControlPoint c, Domain d) => MapDescriptor d -> (Ptr d -> IO ()) -> IO (m c d) withMap1 :: (ControlPoint c, Domain d) => m c d -> (MapDescriptor d -> Ptr d -> IO a) -> IO a newMap1 :: (ControlPoint c, Domain d) => (d, d) -> [c d] -> IO (m c d) getMap1Components :: (ControlPoint c, Domain d) => m c d -> IO ((d, d), [c d]) data GLmap1 c d map1 :: (Map1 m, ControlPoint c, Domain d) => StateVar (Maybe (m c d)) class Map2 m where withNewMap2 :: (ControlPoint c, Domain d) => MapDescriptor d -> MapDescriptor d -> (Ptr d -> IO ()) -> IO (m c d) withMap2 :: (ControlPoint c, Domain d) => m c d -> (MapDescriptor d -> MapDescriptor d -> Ptr d -> IO a) -> IO a newMap2 :: (ControlPoint c, Domain d) => (d, d) -> (d, d) -> [[c d]] -> IO (m c d) getMap2Components :: (ControlPoint c, Domain d) => m c d -> IO ((d, d), (d, d), [[c d]]) data GLmap2 c d map2 :: (Map2 m, ControlPoint c, Domain d) => StateVar (Maybe (m c d)) evalCoord1 :: Domain d => d -> IO () evalCoord1v :: Domain d => Ptr d -> IO () evalCoord2 :: Domain d => (d, d) -> IO () evalCoord2v :: Domain d => Ptr d -> IO () mapGrid1 :: Domain d => StateVar (GLint, (d, d)) mapGrid2 :: Domain d => StateVar ((GLint, (d, d)), (GLint, (d, d))) evalMesh1 :: PolygonMode -> (GLint, GLint) -> IO () evalMesh2 :: PolygonMode -> (GLint, GLint) -> (GLint, GLint) -> IO () evalPoint1 :: GLint -> IO () evalPoint2 :: (GLint, GLint) -> IO () autoNormal :: StateVar Capability

Evaluator-related Types

type Order = GLint

maxOrder :: GettableStateVar Order

class Storable d => Domain d where

Methods evalCoord1 :: d -> IO () evalCoord1v :: Ptr d -> IO () evalCoord2 :: (d, d) -> IO () evalCoord2v :: Ptr d -> IO () Instances Domain GLdouble Domain GLfloat

data MapDescriptor d

Constructors MapDescriptor (d, d) Stride Order NumComponents Instances (Domain d, ??? d) => Eq (MapDescriptor d) (Domain d, ??? d) => Ord (MapDescriptor d) (Domain d, ??? d) => Show (MapDescriptor d)

class ControlPoint c

Instances ControlPoint Color4 ControlPoint Index1 ControlPoint Normal3 ControlPoint TexCoord1 ControlPoint TexCoord2 ControlPoint TexCoord3 ControlPoint TexCoord4 ControlPoint Vertex3 ControlPoint Vertex4

Defining Evaluator Maps

One-dimensional Evaluator Maps

class Map1 m where

Methods withNewMap1 :: (ControlPoint c, Domain d) => MapDescriptor d -> (Ptr d -> IO ()) -> IO (m c d) withMap1 :: (ControlPoint c, Domain d) => m c d -> (MapDescriptor d -> Ptr d -> IO a) -> IO a newMap1 :: (ControlPoint c, Domain d) => (d, d) -> [c d] -> IO (m c d) getMap1Components :: (ControlPoint c, Domain d) => m c d -> IO ((d, d), [c d]) Instances Map1 GLmap1

data GLmap1 c d

Instances Map1 GLmap1 Eq d => Eq (GLmap1 c d) Ord d => Ord (GLmap1 c d) Show d => Show (GLmap1 c d)

map1 :: (Map1 m, ControlPoint c, Domain d) => StateVar (Maybe (m c d))

Two-dimensional Evaluator Maps

class Map2 m where

Methods withNewMap2 :: (ControlPoint c, Domain d) => MapDescriptor d -> MapDescriptor d -> (Ptr d -> IO ()) -> IO (m c d) withMap2 :: (ControlPoint c, Domain d) => m c d -> (MapDescriptor d -> MapDescriptor d -> Ptr d -> IO a) -> IO a newMap2 :: (ControlPoint c, Domain d) => (d, d) -> (d, d) -> [[c d]] -> IO (m c d) getMap2Components :: (ControlPoint c, Domain d) => m c d -> IO ((d, d), (d, d), [[c d]]) Instances Map2 GLmap2

data GLmap2 c d

Instances Map2 GLmap2 Eq d => Eq (GLmap2 c d) Ord d => Ord (GLmap2 c d) Show d => Show (GLmap2 c d)

map2 :: (Map2 m, ControlPoint c, Domain d) => StateVar (Maybe (m c d))

Using Evaluator Maps

Evaluating an Arbitrary Coordinate Value

evalCoord1 :: Domain d => d -> IO ()

evalCoord1v :: Domain d => Ptr d -> IO ()

evalCoord2 :: Domain d => (d, d) -> IO ()

evalCoord2v :: Domain d => Ptr d -> IO ()

Using Evenly Spaced Coordinate Values

Defining a Grid

mapGrid1 :: Domain d => StateVar (GLint, (d, d))

mapGrid2 :: Domain d => StateVar ((GLint, (d, d)), (GLint, (d, d)))

Evaluating a Whole Mesh

evalMesh1 :: PolygonMode -> (GLint, GLint) -> IO ()

evalMesh2 :: PolygonMode -> (GLint, GLint) -> (GLint, GLint) -> IO ()

Evaluating a Single Point on a Mesh

evalPoint1 :: GLint -> IO ()

evalPoint2 :: (GLint, GLint) -> IO ()

Normal Generation

autoNormal :: StateVar Capability

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