bvv.core.cache

Class PboChain

java.lang.Object

bvv.core.cache.PboChain

public class PboChain
extends Object

Constructor Summary

Constructors

Constructor and Description
PboChain(int numBufs, int bufSize, TextureCache cache)

Method Summary

Modifier and Type	Method and Description
void	flush() Finalize a batch of cache tile uploads.
void	init(bvv.core.cache.TextureCache.StagedTasks stagedTasks) Initialize a new batch of cache tile uploads.
void	maintain(GpuContext context) Maps and unmaps Pbos and uploads to texture.
boolean	ready()
boolean	tryActivate(GpuContext context) Activate next Pbo if necessary and possible.
boolean	tryUpload(GpuContext context) Unmap and upload next Pbo if necessary.

Methods inherited from class java.lang.Object

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

Constructor Detail

PboChain

public PboChain(int numBufs,
                int bufSize,
                TextureCache cache)

Parameters:

numBufs - number of PBOs to create

bufSize - size in blocks of each PBO

cache - texture to upload to

Method Detail

flush

public void flush()

Finalize a batch of cache tile uploads.

ready

public boolean ready()

Returns:

ready for init(TextureCache.StagedTasks)?

init

public void init(bvv.core.cache.TextureCache.StagedTasks stagedTasks)
          throws InterruptedException

Initialize a new batch of cache tile uploads.

Throws:

InterruptedException

maintain

public void maintain(GpuContext context)
              throws InterruptedException

Maps and unmaps Pbos and uploads to texture. Runs until flush() is completed

Throws:

InterruptedException

tryActivate

public boolean tryActivate(GpuContext context)

Activate next Pbo if necessary and possible. Signals notEmpty if Pbo is activated.

Returns:

whether a Pbo was activated.

tryUpload

public boolean tryUpload(GpuContext context)

Unmap and upload next Pbo if necessary.

Returns:

whether a Pbo was uploaded.