private void _RemoveSector(CachedSector sector)
{
if (_sectors.Contains(sector))
{
_msHelper.WriteSector(sector.LBA, sector.SectorData);
_sectors.Remove(sector);
}
}
private CachedSector GetCachedSector(Frame frame, Pair <int> sectorIndex)
{
CachedSector result;
if (!SectorCache.TryGetValue(sectorIndex, out result))
{
SectorCache.Add(sectorIndex, result = new CachedSector {
SectorIndex = sectorIndex
});
}
if (result.FrameIndex == frame.Index)
{
return(result);
}
var sector = Environment.Obstructions[sectorIndex];
int lineCount = 0;
foreach (var item in sector)
{
lineCount += item.Item.LineCount;
}
result.PrimitiveCount = lineCount * 2;
result.VertexCount = lineCount * 4;
result.IndexCount = lineCount * 6;
if ((result.ObstructionVertexBuffer != null) && (result.ObstructionVertexBuffer.VertexCount < result.VertexCount))
{
lock (Coordinator.CreateResourceLock)
result.ObstructionVertexBuffer.Dispose();
result.ObstructionVertexBuffer = null;
}
if ((result.ObstructionIndexBuffer != null) && (result.ObstructionIndexBuffer.IndexCount < result.IndexCount))
{
lock (Coordinator.CreateResourceLock)
result.ObstructionIndexBuffer.Dispose();
result.ObstructionIndexBuffer = null;
}
if (result.ObstructionVertexBuffer == null)
{
lock (Coordinator.CreateResourceLock)
result.ObstructionVertexBuffer = new DynamicVertexBuffer(frame.RenderManager.DeviceManager.Device, (new ShadowVertex().VertexDeclaration), result.VertexCount, BufferUsage.WriteOnly);
}
if (result.ObstructionIndexBuffer == null)
{
lock (Coordinator.CreateResourceLock)
result.ObstructionIndexBuffer = new DynamicIndexBuffer(frame.RenderManager.DeviceManager.Device, IndexElementSize.SixteenBits, result.IndexCount, BufferUsage.WriteOnly);
}
using (var va = BufferPool <ShadowVertex> .Allocate(result.VertexCount))
using (var ia = BufferPool <short> .Allocate(result.IndexCount)) {
var vb = va.Data;
var ib = ia.Data;
ArrayLineWriterInstance.SetOutput(vb, ib);
foreach (var itemInfo in sector)
{
itemInfo.Item.GenerateLines(ArrayLineWriterInstance);
}
var linesWritten = ArrayLineWriterInstance.Finish();
if (linesWritten != lineCount)
{
throw new InvalidDataException("GenerateLines didn't generate enough lines based on LineCount");
}
lock (Coordinator.UseResourceLock) {
result.ObstructionVertexBuffer.SetData(vb, 0, result.VertexCount, SetDataOptions.Discard);
result.ObstructionIndexBuffer.SetData(ib, 0, result.IndexCount, SetDataOptions.Discard);
}
}
result.FrameIndex = frame.Index;
return(result);
}
private void _RemoveSector(CachedSector sector)
{
if (_sectors.Contains(sector))
{
_msHelper.WriteSector(sector.LBA, sector.SectorData);
_sectors.Remove(sector);
}
}
