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org.lwjgl.opengl

public Class ARBCopyBuffer

extends Object
Class Inheritance
Imports
org.lwjgl.system.*
Native bindings to the ARB_copy_buffer extension.

This extension provides a mechanism to do an accelerated copy from one buffer object to another. This may be useful to load buffer objects in a "loading thread" while minimizing cost and synchronization effort in the "rendering thread."

Promoted to core in OpenGL 3.1.

Field Summary

Modifier and TypeField and Description
public static final int
GL_COPY_READ_BUFFER

Accepted by the target parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, GetBufferPointerv, MapBufferRange, FlushMappedBufferRange, GetBufferParameteriv, BindBufferRange, BindBufferBase, and CopyBufferSubData.

public static final int
GL_COPY_WRITE_BUFFER

Accepted by the target parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, GetBufferPointerv, MapBufferRange, FlushMappedBufferRange, GetBufferParameteriv, BindBufferRange, BindBufferBase, and CopyBufferSubData.

Constructor Summary

AccessConstructor and Description
protected
ARBCopyBuffer()

Method Summary

Modifier and TypeMethod and Description
public static void
glCopyBufferSubData(int
the source buffer object target. One of:
ARRAY_BUFFERCOPY_READ_BUFFERCOPY_WRITE_BUFFERELEMENT_ARRAY_BUFFER
PIXEL_PACK_BUFFERPIXEL_UNPACK_BUFFERTRANSFORM_FEEDBACK_BUFFERTEXTURE_BUFFER
UNIFORM_BUFFER
readTarget, int
the destination buffer object target
writeTarget, long
the source buffer object offset, in bytes
readOffset, long
the destination buffer object offset, in bytes
writeOffset, long
the number of bytes to copy
size)

Copies all or part of one buffer object's data store to the data store of another buffer object.

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

GL_COPY_READ_BUFFERback to summary
public static final int GL_COPY_READ_BUFFER

Accepted by the target parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, GetBufferPointerv, MapBufferRange, FlushMappedBufferRange, GetBufferParameteriv, BindBufferRange, BindBufferBase, and CopyBufferSubData.

GL_COPY_WRITE_BUFFERback to summary
public static final int GL_COPY_WRITE_BUFFER

Accepted by the target parameters of BindBuffer, BufferData, BufferSubData, MapBuffer, UnmapBuffer, GetBufferSubData, GetBufferPointerv, MapBufferRange, FlushMappedBufferRange, GetBufferParameteriv, BindBufferRange, BindBufferBase, and CopyBufferSubData.

Constructor Detail

ARBCopyBufferback to summary
protected ARBCopyBuffer()

Method Detail

glCopyBufferSubDataback to summary
public static void glCopyBufferSubData(int readTarget, int writeTarget, long readOffset, long writeOffset, long size)

Copies all or part of one buffer object's data store to the data store of another buffer object.

An INVALID_VALUE error is generated if any of readoffset, writeoffset, or size are negative, if readoffset+size exceeds the size of the buffer object bound to readtarget, or if writeoffset+size exceeds the size of the buffer object bound to writetarget.

An INVALID_VALUE error is generated if the same buffer object is bound to both readtarget and writetarget, and the ranges [readoffset, readoffset+size) and [writeoffset, writeoffset+size) overlap.

An INVALID_OPERATION error is generated if zero is bound to readtarget or writetarget.

An INVALID_OPERATION error is generated if the buffer objects bound to either readtarget or writetarget are mapped.

Parameters
readTarget:int

the source buffer object target. One of:

ARRAY_BUFFERCOPY_READ_BUFFERCOPY_WRITE_BUFFERELEMENT_ARRAY_BUFFER
PIXEL_PACK_BUFFERPIXEL_UNPACK_BUFFERTRANSFORM_FEEDBACK_BUFFERTEXTURE_BUFFER
UNIFORM_BUFFER
writeTarget:int

the destination buffer object target

readOffset:long

the source buffer object offset, in bytes

writeOffset:long

the destination buffer object offset, in bytes

size:long

the number of bytes to copy