Class implements OpenGL sampler object resource that stores the sampling parameters for a texture access.
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| OpenGl_Sampler (const Handle< Graphic3d_TextureParams > &theParams) |
| Creates new sampler object. More...
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virtual | ~OpenGl_Sampler () |
| Releases resources of sampler object. More...
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virtual void | Release (OpenGl_Context *theContext) override |
| Destroys object - will release GPU memory if any. More...
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Standard_Boolean | Create (const Handle< OpenGl_Context > &theContext) |
| Creates an uninitialized sampler object. More...
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Standard_Boolean | Init (const Handle< OpenGl_Context > &theContext, const OpenGl_Texture &theTexture) |
| Creates and initializes sampler object. Existing object will be reused if possible, however if existing Sampler Object has Immutable flag and texture parameters should be re-initialized, then Sampler Object will be recreated. More...
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Standard_Boolean | IsValid () const |
| Returns true if current object was initialized. More...
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void | Bind (const Handle< OpenGl_Context > &theCtx) |
| Binds sampler object to texture unit specified in parameters. More...
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void | Unbind (const Handle< OpenGl_Context > &theCtx) |
| Unbinds sampler object from texture unit specified in parameters. More...
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void | Bind (const Handle< OpenGl_Context > &theCtx, const Graphic3d_TextureUnit theUnit) |
| Binds sampler object to the given texture unit. More...
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void | Unbind (const Handle< OpenGl_Context > &theCtx, const Graphic3d_TextureUnit theUnit) |
| Unbinds sampler object from the given texture unit. More...
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void | SetParameter (const Handle< OpenGl_Context > &theCtx, GLenum theTarget, GLenum theParam, GLint theValue) |
| Sets specific sampler parameter. More...
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GLuint | SamplerID () const |
| Returns OpenGL sampler ID. More...
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bool | IsImmutable () const |
| Return immutable flag preventing further modifications of sampler parameters, FALSE by default. Immutable flag might be set when Sampler Object is used within Bindless Texture. More...
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void | SetImmutable () |
| Setup immutable flag. It is not possible unsetting this flag without Sampler destruction. More...
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const Handle< Graphic3d_TextureParams > & | Parameters () |
| Returns texture parameters. More...
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void | SetParameters (const Handle< Graphic3d_TextureParams > &theParams) |
| Sets texture parameters. More...
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bool | ToUpdateParameters () const |
| Returns texture parameters initialization state. More...
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| OpenGl_Resource () |
| Empty constructor. More...
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virtual | ~OpenGl_Resource () |
| Destructor. Inheritors should call Clean (NULL) within it. More...
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Public Member Functions inherited from Standard_Transient |
| Standard_Transient () |
| Empty constructor. More...
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| Standard_Transient (const Standard_Transient &) |
| Copy constructor – does nothing. More...
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Standard_Transient & | operator= (const Standard_Transient &) |
| Assignment operator, needed to avoid copying reference counter. More...
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virtual | ~Standard_Transient () |
| Destructor must be virtual. More...
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virtual void | Delete () const |
| Memory deallocator for transient classes. More...
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virtual const opencascade::handle< Standard_Type > & | DynamicType () const |
| Returns a type descriptor about this object. More...
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Standard_Boolean | IsInstance (const opencascade::handle< Standard_Type > &theType) const |
| Returns a true value if this is an instance of Type. More...
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Standard_Boolean | IsInstance (const Standard_CString theTypeName) const |
| Returns a true value if this is an instance of TypeName. More...
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Standard_Boolean | IsKind (const opencascade::handle< Standard_Type > &theType) const |
| Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
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Standard_Boolean | IsKind (const Standard_CString theTypeName) const |
| Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
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Standard_Transient * | This () const |
| Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. More...
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Standard_Integer | GetRefCount () const |
| Get the reference counter of this object. More...
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void | IncrementRefCounter () const |
| Increments the reference counter of this object. More...
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Standard_Integer | DecrementRefCounter () const |
| Decrements the reference counter of this object; returns the decremented value. More...
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static void | setParameter (const Handle< OpenGl_Context > &theContext, OpenGl_Sampler *theSampler, GLenum theTarget, GLenum theParam, GLint theValue) |
| Sets specific sampler parameter. More...
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static void | applySamplerParams (const Handle< OpenGl_Context > &theCtx, const Handle< Graphic3d_TextureParams > &theParams, OpenGl_Sampler *theSampler, const GLenum theTarget, const bool theHasMipMaps) |
| Apply sampler parameters. If Sampler Object is not NULL and valid resource, the parameters will be set to it (and it is not required Sampler Object being bound). Otherwise, parameters will be applied to currently bound Texture object. More...
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static void | applyGlobalTextureParams (const Handle< OpenGl_Context > &theCtx, const OpenGl_Texture &theTexture, const Handle< Graphic3d_TextureParams > &theParams) |
| Apply global texture state for deprecated OpenGL functionality. More...
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static void | resetGlobalTextureParams (const Handle< OpenGl_Context > &theCtx, const OpenGl_Texture &theTexture, const Handle< Graphic3d_TextureParams > &theParams) |
| Reset global texture state for deprecated OpenGL functionality. More...
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Class implements OpenGL sampler object resource that stores the sampling parameters for a texture access.