private bool copyToStaging(VTexPage page, StagingBufferSet buffers, IndirectionTexture indirectionTexture, OriginalTextureInfo textureUnit)
{
bool usedPhysicalPage = false;
try
{
if (page.mip >= textureUnit.MipOffset)
{
//Load or grab from cache
using (var pageHandle = textureCache.getImage(page, indirectionTexture, textureUnit, textelsPerPage, padding, padding2))
{
buffers.setPhysicalPage(pageHandle.PixelBox, virtualTextureManager.getPhysicalTexture(textureUnit.TextureUnit), padding);
usedPhysicalPage = true;
}
}
else
{
Logging.Log.Warning("Unable to load mip map level {0} for texture {1}", page.mip - textureUnit.MipOffset, textureUnit.TextureFileName);
}
}
catch (Exception ex)
{
Logging.Log.Error("{0} loading image {1}. Message: {2}", ex.GetType().Name, textureUnit.TextureFileName, ex.Message);
}
return(usedPhysicalPage);
}
public void returnStagingBuffer(StagingBufferSet stagingBuffers)
{
lock (stagingBufferSets)
{
stagingBuffers.returnedToPool();
stagingBufferSets.Add(stagingBuffers);
if (stagingBufferSets.Count > 0)
{
stagingBufferWaitEvent.Set();
}
}
}
private bool loadPage(VTexPage page, StagingBufferSet stagingBuffers)
{
bool added = false;
try
{
//First see if we still have that page in our virtual texture pool, possible optimization to sort these to the front of the list
if (physicalPageQueue.Count > 0) //Do we have pages available
{
PTexPage pTexPage = physicalPageQueue[0]; //The physical page candidate, do not modify before usedPhysicalPages if statement below
if (loadImages(page, pTexPage, stagingBuffers))
{
//Alert old texture of removal if there was one, Do not modify pTexPage above this if block, we need the old data
IndirectionTexture oldIndirectionTexture = null;
if (pTexPage.VirtualTexturePage != null)
{
if (virtualTextureManager.getIndirectionTexture(pTexPage.VirtualTexturePage.indirectionTexId, out oldIndirectionTexture))
{
oldIndirectionTexture.removePhysicalPage(pTexPage);
}
physicalPagePool.Remove(pTexPage.VirtualTexturePage); //Be sure to remove the page from the pool if it was used previously
}
physicalPageQueue.RemoveAt(0);
pTexPage.VirtualTexturePage = page;
usedPhysicalPages.Add(page, pTexPage);
//Add to new indirection texture
IndirectionTexture newIndirectionTex;
if (virtualTextureManager.getIndirectionTexture(page.indirectionTexId, out newIndirectionTex))
{
newIndirectionTex.addPhysicalPage(pTexPage);
stagingBuffers.setIndirectionTextures(oldIndirectionTexture, newIndirectionTex);
}
added = true;
}
}
}
catch (Exception ex)
{
Logging.Log.Debug("{0} loading page {1}. Message: {2}", ex.GetType().Name, page.ToString(), ex.Message);
}
return(added);
}
/// <summary>
/// Load the given image. Note that pTexPage is constant for the duration of this function call
/// </summary>
/// <param name="page"></param>
/// <param name="pTexPage"></param>
/// <returns></returns>
private bool loadImages(VTexPage page, PTexPage pTexPage, StagingBufferSet stagingBuffers)
{
int stagingImageIndex = 0;
bool usedPhysicalPage = false;
IndirectionTexture indirectionTexture;
if (virtualTextureManager.getIndirectionTexture(page.indirectionTexId, out indirectionTexture))
{
//Fire off image loading and blitting tasks
foreach (var textureUnit in indirectionTexture.OriginalTextures)
{
copyTostagingImageTasks[stagingImageIndex] = fireCopyToStaging(page, stagingBuffers, indirectionTexture, textureUnit);
++stagingImageIndex;
}
//Wait for results
for (int i = 0; i < stagingImageIndex; ++i)
{
copyTostagingImageTasks[i].Wait();
if (copyTostagingImageTasks[i].Result)
{
usedPhysicalPage = true;
}
}
//Single threaded
//foreach (var textureUnit in indirectionTexture.OriginalTextures)
//{
// if (copyToStaging(page, stagingBuffers, indirectionTexture, textureUnit))
// {
// usedPhysicalPage = true;
// }
//}
//Update staging buffer info
stagingBuffers.Dest = new IntRect(pTexPage.x, pTexPage.y, textelsPerPhysicalPage, textelsPerPhysicalPage);
}
return(usedPhysicalPage);
}
internal void syncToGpu(StagingBufferSet stagingBufferSet)
{
waitingGpuSyncs.Enqueue(stagingBufferSet);
}
private Task <bool> fireCopyToStaging(VTexPage page, StagingBufferSet buffers, IndirectionTexture indirectionTexture, OriginalTextureInfo textureUnit)
{
return(Task.Run(() => copyToStaging(page, buffers, indirectionTexture, textureUnit)));
}