OpenSceneGraph 3.6.5
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PerContextProgram (PCP) is an OSG-internal encapsulation of glPrograms per-GL context. More...
#include <Program>
Public Member Functions | |
PerContextProgram (const Program *program, unsigned int contextID, GLuint programHandle=0) | |
Use "0" as programHandle to let the PeContextProgram execute "glCreateProgram"and "glDeleteProgram". | |
GLuint | getHandle () const |
const osg::Program * | getProgram () const |
void | setDefineString (const std::string &defStr) |
const std::string & | getDefineString () const |
void | requestLink () |
virtual void | linkProgram (osg::State &state) |
virtual bool | validateProgram () |
bool | needsLink () const |
bool | isLinked () const |
virtual bool | getInfoLog (std::string &infoLog) const |
bool | loadedBinary () const |
Was glProgramBinary called successfully? | |
virtual ProgramBinary * | compileProgramBinary (osg::State &state) |
Compile a program binary. | |
virtual void | useProgram () const |
void | resetAppliedUniforms () const |
void | apply (const Uniform &uniform) const |
const ActiveUniformMap & | getActiveUniforms () const |
const ActiveVarInfoMap & | getActiveAttribs () const |
const UniformBlockMap & | getUniformBlocks () const |
GLint | getUniformLocation (unsigned int uniformNameID) const |
GLint | getUniformLocation (const std::string &uniformName) const |
Alternative version of getUniformLocation( unsigned int uniformNameID ) retrofited into OSG for backward compatibility with osgCal, after uniform ids were refactored from std::strings to GLints in OSG version 2.9.10. | |
GLint | getAttribLocation (const std::string &name) const |
void | addShaderToAttach (Shader *shader) |
void | addShaderToDetach (Shader *shader) |
Public Member Functions inherited from osg::Referenced | |
Referenced () | |
Referenced (bool threadSafeRefUnref) | |
Deprecated, Referenced is now always uses thread safe ref/unref, use default Referenced() constructor instead. | |
Referenced (const Referenced &) | |
Referenced & | operator= (const Referenced &) |
virtual void | setThreadSafeRefUnref (bool) |
Deprecated, Referenced is always theadsafe so there method now has no effect and does not need to be called. | |
bool | getThreadSafeRefUnref () const |
Get whether a mutex is used to ensure ref() and unref() are thread safe. | |
OpenThreads::Mutex * | getRefMutex () const |
Get the mutex used to ensure thread safety of ref()/unref(). | |
int | ref () const |
Increment the reference count by one, indicating that this object has another pointer which is referencing it. | |
int | unref () const |
Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. | |
int | unref_nodelete () const |
Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. | |
int | referenceCount () const |
Return the number of pointers currently referencing this object. | |
ObserverSet * | getObserverSet () const |
Get the ObserverSet if one is attached, otherwise return NULL. | |
ObserverSet * | getOrCreateObserverSet () const |
Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet. | |
void | addObserver (Observer *observer) const |
Add a Observer that is observing this object, notify the Observer when this object gets deleted. | |
void | removeObserver (Observer *observer) const |
Remove Observer that is observing this object. |
Protected Types | |
typedef std::pair< osg::ref_ptr< const osg::Uniform >, unsigned int > | UniformModifiedCountPair |
typedef std::map< unsigned int, UniformModifiedCountPair > | LastAppliedUniformList |
typedef std::vector< ref_ptr< Shader > > | ShaderList |
Protected Member Functions | |
virtual | ~PerContextProgram () |
Protected Member Functions inherited from osg::Referenced | |
virtual | ~Referenced () |
void | signalObserversAndDelete (bool signalDelete, bool doDelete) const |
void | deleteUsingDeleteHandler () const |
Protected Attributes | |
const Program * | _program |
Pointer to our parent Program. | |
osg::ref_ptr< GLExtensions > | _extensions |
Pointer to this context's extension functions. | |
GLuint | _glProgramHandle |
Handle to the actual OpenGL glProgram. | |
std::string | _defineStr |
Define string passed on to Shaders to help configure them. | |
bool | _needsLink |
Does our glProgram need to be linked? | |
bool | _isLinked |
Is our glProgram successfully linked? | |
bool | _loadedBinary |
Was glProgramBinary called successfully? | |
const unsigned int | _contextID |
bool | _ownsProgramHandle |
Does the glProgram handle belongs to this class? | |
ActiveUniformMap | _uniformInfoMap |
ActiveVarInfoMap | _attribInfoMap |
UniformBlockMap | _uniformBlockMap |
LastAppliedUniformList | _lastAppliedUniformList |
ShaderList | _shadersToDetach |
ShaderList | _shadersToAttach |
Protected Attributes inherited from osg::Referenced | |
OpenThreads::AtomicPtr | _observerSet |
OpenThreads::Atomic | _refCount |
Additional Inherited Members | |
Static Public Member Functions inherited from osg::Referenced | |
static OpenThreads::Mutex * | getGlobalReferencedMutex () |
Get the optional global Referenced mutex, this can be shared between all osg::Referenced. | |
static void | setDeleteHandler (DeleteHandler *handler) |
Set a DeleteHandler to which deletion of all referenced counted objects will be delegated. | |
static DeleteHandler * | getDeleteHandler () |
Get a DeleteHandler. |
PerContextProgram (PCP) is an OSG-internal encapsulation of glPrograms per-GL context.
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osg::Program::PerContextProgram::PerContextProgram | ( | const Program * | program, |
unsigned int | contextID, | ||
GLuint | programHandle = 0 ) |
Use "0" as programHandle to let the PeContextProgram execute "glCreateProgram"and "glDeleteProgram".
References osg::Program::Program().
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References _shadersToAttach.
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References _shadersToDetach.
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Compile a program binary.
For this to work setProgramBinary must have been called on the osg::Program with an empty ProgramBinary prior to compileGLObjects being called. compileProgramBinary should be called after the program has been "exercised" by rendering with it. The ProgramBinary can then be saved to disk for faster subsequent compiling.
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References _attribInfoMap.
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References _uniformInfoMap.
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References _attribInfoMap.
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References _defineStr.
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References _glProgramHandle.
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References _program.
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References _uniformBlockMap.
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Alternative version of getUniformLocation( unsigned int uniformNameID ) retrofited into OSG for backward compatibility with osgCal, after uniform ids were refactored from std::strings to GLints in OSG version 2.9.10.
Drawbacks: This method is not particularly fast. It has to access mutexed static map of uniform ids. So don't overuse it or your app performance will suffer.
References osg::Uniform::getNameID(), and getUniformLocation().
Referenced by getUniformLocation().
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References _uniformInfoMap.
Referenced by apply().
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References _isLinked.
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Was glProgramBinary called successfully?
References _loadedBinary.
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References _needsLink.
void osg::Program::PerContextProgram::requestLink | ( | ) |
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References _lastAppliedUniformList.
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References _defineStr.
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Referenced by getActiveAttribs(), and getAttribLocation().
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Define string passed on to Shaders to help configure them.
Referenced by getDefineString(), and setDefineString().
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Pointer to this context's extension functions.
Referenced by apply().
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Handle to the actual OpenGL glProgram.
Referenced by getHandle().
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Is our glProgram successfully linked?
Referenced by isLinked().
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Referenced by apply(), and resetAppliedUniforms().
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Was glProgramBinary called successfully?
Referenced by loadedBinary().
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Does our glProgram need to be linked?
Referenced by needsLink().
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Does the glProgram handle belongs to this class?
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Pointer to our parent Program.
Referenced by getProgram().
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Referenced by addShaderToAttach().
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Referenced by addShaderToDetach().
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Referenced by getUniformBlocks().
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Referenced by getActiveUniforms(), and getUniformLocation().
![]() | Generated at Sun Jul 27 2025 00:00:00 for the OpenSceneGraph by doxygen 1.14.0. |