Package cz.fidentis.analyst.glsl.buffers

Interface PixelUnpackBuffer

All Superinterfaces:

GlslBuffer

All Known Implementing Classes:

PixelUnpackBufferImpl

public interface PixelUnpackBuffer
extends GlslBuffer

A buffer for GL_PIXEL_UNPACK_BUFFER target.

Method Summary

Modifier and Type	Method	Description
void	allocate(long items, boolean reset)	Allocates memory for this buffer on GPU.
long	getItemSize()	This buffer stores some amount of items of the same type (integers, floats, etc.).
int	getUsage()	Returns buffer usage type

Methods inherited from interface cz.fidentis.analyst.glsl.buffers.GlslBuffer

bind, getBindingIndex, getBufferName, getGlName, getGlTarget, glContext

Method Details

getUsage

int getUsage()

Returns buffer usage type

Returns:

usage type

getItemSize

long getItemSize()

This buffer stores some amount of items of the same type (integers, floats, etc.). Therefore, this method returns the size (number of bytes) of a single item.

Returns:

items' size

allocate

void allocate(long items,
 boolean reset)

Allocates memory for this buffer on GPU. Can be used multiple times to resize the buffer. Resulting buffer will occupy items * getItemSize() bytes.

Parameters:

items - how many items are going to be in the buffer (resulting buffer will have items * ssboDef.getItemSize() bytes)

reset - if true, then fills the buffer by zeros