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osg::FragmentProgram Class Reference
Inheritance diagram for osg::FragmentProgram:
osg::StateAttribute osg::Object osg::Referenced

List of all members.

Classes

class  Extensions

Public Types

typedef std::map< GLuint, Vec4LocalParamList
typedef std::map< GLenum, MatrixMatrixList

Public Member Functions

 FragmentProgram ()
 FragmentProgram (const FragmentProgram &vp, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
 META_StateAttribute (osg, FragmentProgram, FRAGMENTPROGRAM)
virtual int compare (const osg::StateAttribute &sa) const
virtual bool getModeUsage (StateAttribute::ModeUsage &usage) const
GLuint & getFragmentProgramID (unsigned int contextID) const
void setFragmentProgram (const char *program)
void setFragmentProgram (const std::string &program)
const std::string & getFragmentProgram () const
void setProgramLocalParameter (const GLuint index, const Vec4 &p)
void setLocalParameters (const LocalParamList &lpl)
LocalParamListgetLocalParameters ()
const LocalParamListgetLocalParameters () const
void setMatrix (const GLenum mode, const Matrix &matrix)
void setMatrices (const MatrixList &matrices)
MatrixListgetMatrices ()
const MatrixListgetMatrices () const
void dirtyFragmentProgramObject ()
virtual void apply (State &state) const
virtual void compileGLObjects (State &state) const
virtual void resizeGLObjectBuffers (unsigned int maxSize)
virtual void releaseGLObjects (State *state=0) const

Static Public Member Functions

static void deleteFragmentProgramObject (unsigned int contextID, GLuint handle)
static void flushDeletedFragmentProgramObjects (unsigned int contextID, double currentTime, double &availableTime)
static void discardDeletedFragmentProgramObjects (unsigned int contextID)
static ExtensionsgetExtensions (unsigned int contextID, bool createIfNotInitalized)
static void setExtensions (unsigned int contextID, Extensions *extensions)

Protected Types

typedef buffered_value< GLuint > FragmentProgramIDList

Protected Member Functions

virtual ~FragmentProgram ()

Protected Attributes

FragmentProgramIDList _fragmentProgramIDList
std::string _fragmentProgram
LocalParamList _programLocalParameters
MatrixList _matrixList

Detailed Description

FragmentProgram - encapsulates the OpenGL ARB fragment program state.


Member Typedef Documentation

typedef std::map<GLuint,Vec4> osg::FragmentProgram::LocalParamList
typedef std::map<GLenum,Matrix> osg::FragmentProgram::MatrixList

Constructor & Destructor Documentation

osg::FragmentProgram::FragmentProgram ( )
osg::FragmentProgram::FragmentProgram ( const FragmentProgram vp,
const CopyOp copyop = CopyOp::SHALLOW_COPY 
)

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::FragmentProgram::~FragmentProgram ( ) [protected, virtual]

Member Function Documentation

virtual void osg::FragmentProgram::apply ( State ) const [virtual]

apply the OpenGL state attributes. The render info for the current OpenGL context is passed in to allow the StateAttribute to obtain details on the the current context and state.

Reimplemented from osg::StateAttribute.

virtual int osg::FragmentProgram::compare ( const osg::StateAttribute sa) const [inline, virtual]

return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.

Implements osg::StateAttribute.

References COMPARE_StateAttribute_Parameter, and COMPARE_StateAttribute_Types.

virtual void osg::FragmentProgram::compileGLObjects ( State ) const [inline, virtual]

Default to nothing to compile - all state is applied immediately.

Reimplemented from osg::StateAttribute.

static void osg::FragmentProgram::deleteFragmentProgramObject ( unsigned int  contextID,
GLuint  handle 
) [static]

use deleteFragmentProgramObject instead of glDeletePrograms to allow OpenGL Fragment Program objects to be cached until they can be deleted by the OpenGL context in which they were created, specified by contextID.

void osg::FragmentProgram::dirtyFragmentProgramObject ( )

Force a recompile on next apply() of associated OpenGL vertex program objects.

static void osg::FragmentProgram::discardDeletedFragmentProgramObjects ( unsigned int  contextID) [static]

discard all the cached fragment programs which need to be deleted in the OpenGL context related to contextID. Note, unlike flush no OpenGL calls are made, instead the handles are all removed. this call is useful for when an OpenGL context has been destroyed.

static void osg::FragmentProgram::flushDeletedFragmentProgramObjects ( unsigned int  contextID,
double  currentTime,
double &  availableTime 
) [static]

flush all the cached fragment programs which need to be deleted in the OpenGL context related to contextID.

static Extensions* osg::FragmentProgram::getExtensions ( unsigned int  contextID,
bool  createIfNotInitalized 
) [static]

Function to call to get the extension of a specified context. If the Extension object for that context has not yet been created and the 'createIfNotInitalized' flag has been set to false then returns NULL. If 'createIfNotInitalized' is true then the Extensions object is automatically created. However, in this case the extension object will only be created with the graphics context associated with ContextID..

const std::string& osg::FragmentProgram::getFragmentProgram ( ) const [inline]

Get the fragment program.

GLuint& osg::FragmentProgram::getFragmentProgramID ( unsigned int  contextID) const [inline]

Get the handle to the fragment program id for the current context.

LocalParamList& osg::FragmentProgram::getLocalParameters ( ) [inline]

Get list of Program Parameters

const LocalParamList& osg::FragmentProgram::getLocalParameters ( ) const [inline]

Get const list of Program Parameters

MatrixList& osg::FragmentProgram::getMatrices ( ) [inline]

Get list of Matrices

const MatrixList& osg::FragmentProgram::getMatrices ( ) const [inline]

Get list of Matrices

virtual bool osg::FragmentProgram::getModeUsage ( StateAttribute::ModeUsage ) const [inline, virtual]

Return the modes associated with this StateAttribute.

Reimplemented from osg::StateAttribute.

References GL_FRAGMENT_PROGRAM_ARB, and osg::StateAttribute::ModeUsage::usesMode().

osg::FragmentProgram::META_StateAttribute ( osg  ,
FragmentProgram  ,
FRAGMENTPROGRAM   
)
virtual void osg::FragmentProgram::releaseGLObjects ( State state = 0) const [virtual]

release an OpenGL objects in specified graphics context if State object is passed, otherwise release OpenGL objects for all graphics context if State object pointer == NULL.

Reimplemented from osg::StateAttribute.

virtual void osg::FragmentProgram::resizeGLObjectBuffers ( unsigned int  maxSize) [virtual]

Resize any per context GLObject buffers to specified size.

Reimplemented from osg::StateAttribute.

static void osg::FragmentProgram::setExtensions ( unsigned int  contextID,
Extensions extensions 
) [static]

setExtensions allows users to override the extensions across graphics contexts. typically used when you have different extensions supported across graphics pipes but need to ensure that they all use the same low common denominator extensions.

void osg::FragmentProgram::setFragmentProgram ( const std::string &  program) [inline]

Set the fragment program using C++ style string.

void osg::FragmentProgram::setFragmentProgram ( const char *  program) [inline]

Set the fragment program using a C style string.

void osg::FragmentProgram::setLocalParameters ( const LocalParamList lpl) [inline]

Set list of Program Parameters

void osg::FragmentProgram::setMatrices ( const MatrixList matrices) [inline]

Set list of Matrices

void osg::FragmentProgram::setMatrix ( const GLenum  mode,
const Matrix matrix 
) [inline]

Matrix

void osg::FragmentProgram::setProgramLocalParameter ( const GLuint  index,
const Vec4 p 
) [inline]

Set Program Parameters


Member Data Documentation

std::string osg::FragmentProgram::_fragmentProgram [protected]

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