Package icyllis.arc3d.opengl

Class GLVertexArray

java.lang.Object

icyllis.arc3d.core.RefCnt

icyllis.arc3d.engine.ManagedResource

icyllis.arc3d.opengl.GLVertexArray

All Implemented Interfaces:

RefCounted

public final class GLVertexArray
extends ManagedResource

This class manages the lifetime of the vertex array object and is used to track the state of the vertex array to avoid redundant GL calls.

The implementation attempts to utilize ARB_vertex_attrib_binding that is available in OpenGL 4.3 and OpenGL ES 3.1. Except for buffer binding, all other states are immutable after creation. See ARB_vertex_attrib_binding

Method Summary

Modifier and Type	Method	Description
void	bindIndexBuffer(@RawPtr GLBuffer buffer)	Set element buffer (index buffer), bind pipeline first.
void	bindVertexBuffer(int binding, @RawPtr GLBuffer buffer, long offset)	Set the buffer that stores the attribute data, bind pipeline first.
protected void	deallocate()	Override this method to invoke de-allocation of the underlying resource.
void	discard()
int	getBindingCount()
protected GLDevice	getDevice()
int	getHandle()
int	getInputRate(int binding)
int	getStride(int binding)
static @SharedPtr GLVertexArray	make(GLDevice device, VertexInputLayout inputLayout, String label)

Methods inherited from class icyllis.arc3d.core.RefCnt

create, create, getRefCnt, getRefCntAcquire, getRefCntVolatile, move, move, ref, unique, unref

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

make

@Nullable
@SharedPtr
public static @SharedPtr GLVertexArray make(@Nonnull
 GLDevice device,
 @Nonnull
 VertexInputLayout inputLayout,
 String label)

deallocate

protected void deallocate()

Description copied from class: RefCnt

Override this method to invoke de-allocation of the underlying resource.

Specified by:

deallocate in class RefCnt

discard

public void discard()

getHandle

public int getHandle()

getBindingCount

public int getBindingCount()

getStride

public int getStride(int binding)

getInputRate

public int getInputRate(int binding)

bindIndexBuffer

public void bindIndexBuffer(@Nonnull @RawPtr
 @RawPtr GLBuffer buffer)

Set element buffer (index buffer), bind pipeline first.

Parameters:

buffer - the element buffer object, raw ptr

bindVertexBuffer

public void bindVertexBuffer(int binding,
 @Nonnull @RawPtr
 @RawPtr GLBuffer buffer,
 long offset)

Set the buffer that stores the attribute data, bind pipeline first.

The stride, the distance to the next vertex data, in bytes, is determined in constructor.

Parameters:

buffer - the vertex buffer object, raw ptr

offset - first vertex data to the base of the buffer, in bytes

getDevice

protected GLDevice getDevice()

Overrides:

getDevice in class ManagedResource