Carna::base::ManagedMeshBase Class Reference

Represents MeshBase object whose lifetime is managed by instances of this class. This is a format-independent abstract ManagedMesh base class. More...

#include <ManagedMesh.h>

Inheritance diagram for Carna::base::ManagedMeshBase:

Collaboration diagram for Carna::base::ManagedMeshBase:

Public Types
typedef ManagedMeshInterface	ManagedInterface
	Defines the type to be used for interfacing the video resource.

Public Member Functions
virtual bool	controlsSameVideoResource (const GeometryFeature &) const override
	Tells whether this instance maintains the same video resources like other.
virtual ManagedMeshInterface *	acquireVideoResource () override
	Acquires the video resources from this GeometryFeature by returning new instance of a class derived from ManagedInterface, that realizes the RAII idiom. Refer to its documentation for details. May return nullptr if this GeometryFeature does not provide any video resources.
Public Member Functions inherited from Carna::base::GeometryFeature
unsigned int	videoResourceAcquisitionsCount () const
	Tells current number of video resource acquisitions.
void	release ()
	Denotes that this object is no longer required and may be deleted as soon as it is valid to delete it. More...
void	addTo (Geometry &sceneGraphNode, unsigned int role)
	Puts this geometry feature on the sceneGraphNode. More...
void	removeFrom (Geometry &sceneGraphNode)
	Removes this geometry feature from the sceneGraphNode. More...

Public Attributes
const unsigned int	primitiveType
	Holds the primitive type, like GL_TRIANGLES, that should be used when rendering this mesh.
const VertexAttributes	vertexAttributes
	Holds the vertex format of the vertices contained by the vertex buffer.

Protected Member Functions
	ManagedMeshBase (unsigned int primitiveType, const VertexAttributes &va)
	Instantiates.
virtual	~ManagedMeshBase ()
	Deletes.
virtual VertexBufferBase *	loadVertexBuffer ()=0
	Creates OpenGL vertex buffer object and fills it with data.
virtual IndexBufferBase *	loadIndexBuffer ()=0
	Creates OpenGL index buffer object and fills it with data.
void	acquireMesh ()
	Acquires mesh within current OpenGL context.
void	releaseMesh ()
	Releases mesh within current OpenGL context.
const MeshBase &	mesh () const
	References mesh within current OpenGL context.
Protected Member Functions inherited from Carna::base::GeometryFeature
	GeometryFeature ()
	Instantiates.
virtual	~GeometryFeature ()
	Deletes and logs an error if video resources are leaked.

Friends
class	GeometryFeature
class	ManagedMeshInterface

Detailed Description

Represents MeshBase object whose lifetime is managed by instances of this class. This is a format-independent abstract ManagedMesh base class.

See also

The MeshFactory class contains a few examples.

The class maintains one VertexBuffer and one IndexBuffer on an application level. The buffers are created the first time the mesh's video resources are acquired. The buffers are deleted when the last acquisition is released. The buffer instances are available across all OpenGL contexts.

The MeshBase class is only valid within the OpenGL context it was created within. Refer to the class documentation for an explanation.

Author

Leonid Kostrykin

Date

1.9.14 - 24.3.15

Definition at line 56 of file ManagedMesh.h.

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

• include/Carna/base/ManagedMesh.h