javax.media.opengl

Class GLBufferStorage

java.lang.Object

javax.media.opengl.GLBufferStorage

public abstract class GLBufferStorage
extends Object

OpenGL buffer storage object reflecting it's

• storage size
• storage memory if mapped
• mutable usage or immutable flags

Buffer storage is created via:

• glBufferStorage - storage creation with target
• GL.glBufferData(int, long, java.nio.Buffer, int) - storage recreation with target
• GL2.glNamedBufferDataEXT(int, long, java.nio.Buffer, int) - storage recreation, direct

Note that storage recreation as mentioned above also invalidate a previous storage instance, i.e. disposed the buffer's current storage if exist and attaches a new storage instance.

Buffer storage is disposed via:

• GL.glDeleteBuffers(int, IntBuffer) - explicit, direct, via #notifyBuffersDeleted(int, IntBuffer) or #notifyBuffersDeleted(int, int[], int)
• GL.glBufferData(int, long, java.nio.Buffer, int) - storage recreation via target
• GL2.glNamedBufferDataEXT(int, long, java.nio.Buffer, int) - storage recreation, direct

GL buffer storage is mapped via

• GLBase.mapBuffer(int, int)
• GLBase.mapBufferRange(int, long, long, int)
• GL2.mapNamedBuffer(int, int)
• GL2.mapNamedBufferRange(int, long, long, int)

GL buffer storage is unmapped via

• GL.glUnmapBuffer(int) - explicit via target
• GL2.glUnmapNamedBufferEXT(int) - explicit direct
• GL.glBufferData(int, long, java.nio.Buffer, int) - storage recreation via target
• GL2.glNamedBufferDataEXT(int, long, java.nio.Buffer, int) - storage recreation, direct
• GL.glDeleteBuffers(int, IntBuffer) - buffer deletion

Method Summary

Methods

Modifier and Type	Method and Description
int	getImmutableFlags() Returns the immutable storage flags, invalid if storage is mutable.
ByteBuffer	getMappedBuffer() Returns the mapped ByteBuffer, or null if not mapped.
int	getMutableUsage() Returns the mutable storage usage or 0 if storage is not mutable.
int	getName() Return the buffer name
long	getSize() Return the buffer's storage size.
boolean	isMutableStorage() Returns true if buffer's storage is mutable, i.e.
String	toString()
String	toString(boolean skipMappedBuffer)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

getName

public final int getName()

Return the buffer name

getSize

public final long getSize()

Return the buffer's storage size.

isMutableStorage

public final boolean isMutableStorage()

Returns true if buffer's storage is mutable, i.e. created via GL.glBufferData(int, long, java.nio.Buffer, int).

Returns false if buffer's storage is immutable, i.e. created via glBufferStorage. FIXME: Add GL 4.4 support!

Returns:

getMutableUsage

public final int getMutableUsage()

Returns the mutable storage usage or 0 if storage is not mutable.

getImmutableFlags

public final int getImmutableFlags()

Returns the immutable storage flags, invalid if storage is mutable.

getMappedBuffer

public final ByteBuffer getMappedBuffer()

Returns the mapped ByteBuffer, or null if not mapped. Mapping may occur via:

• GL.glMapBuffer(int, int)
• GL.glMapBufferRange(int, long, long, int)
• GL2.glMapNamedBufferEXT(int, int)
• GL2.glMapNamedBufferRangeEXT(int, long, long, int)

toString

public final String toString()

Overrides:

toString in class Object

toString

public final String toString(boolean skipMappedBuffer)