public void InsertAtFront(ref CachedBatch item, int?previousIndex)
{
// No-op
if (previousIndex == 0)
{
return;
}
else if (Count == 0)
{
SetItemAtIndex(0, ref item);
Count += 1;
return;
}
// Move items back to create space for the item at the front
int writePosition;
if (Count == Capacity)
{
writePosition = Capacity - 1;
}
else
{
writePosition = Count;
}
for (int i = writePosition - 1; i >= 0; i--)
{
// If the item is being moved from its position to the front, make sure we don't also move it back
if (i == previousIndex)
{
continue;
}
CachedBatch temp;
GetItemAtIndex(i, out temp);
SetItemAtIndex(writePosition, ref temp);
writePosition -= 1;
}
SetItemAtIndex(0, ref item);
if (!previousIndex.HasValue)
{
if (Count < Capacity)
{
Count += 1;
}
}
}
public bool KeysEqual(ref CachedBatch rhs)
{
return(
(BatchType == rhs.BatchType) &&
(Container == rhs.Container) &&
(Layer == rhs.Layer) &&
(WorldSpace == rhs.WorldSpace) &&
(BlendState == rhs.BlendState) &&
(SamplerState == rhs.SamplerState) &&
(UseZBuffer == rhs.UseZBuffer) &&
(RasterizerState == rhs.RasterizerState) &&
(DepthStencilState == rhs.DepthStencilState)
);
}
public bool TryGet <T> (
out CachedBatch result,
CachedBatchType cbt,
IBatchContainer container,
int layer,
bool worldSpace,
RasterizerState rasterizerState,
DepthStencilState depthStencilState,
BlendState blendState,
SamplerState samplerState,
Material customMaterial,
bool useZBuffer
)
{
CachedBatch itemAtIndex, searchKey;
searchKey = new CachedBatch(
cbt,
container,
layer,
worldSpace,
rasterizerState,
depthStencilState,
blendState,
samplerState,
customMaterial,
useZBuffer
);
for (var i = 0; i < Count; i++)
{
GetItemAtIndex(i, out itemAtIndex);
if (itemAtIndex.HashCode != searchKey.HashCode)
{
continue;
}
if (itemAtIndex.KeysEqual(ref searchKey))
{
result = itemAtIndex;
InsertAtFront(ref itemAtIndex, i);
return(result.Batch != null);
}
}
result = searchKey;
return(false);
}
public bool KeysEqual(ref CachedBatch rhs)
{
var result = (
(BatchType == rhs.BatchType) &&
(Container == rhs.Container) &&
(Layer == rhs.Layer) &&
(WorldSpace == rhs.WorldSpace) &&
(BlendState == rhs.BlendState) &&
(UseZBuffer == rhs.UseZBuffer) &&
(RasterizerState == rhs.RasterizerState) &&
(DepthStencilState == rhs.DepthStencilState) &&
(CustomMaterial == rhs.CustomMaterial)
);
return(result);
}
private void SetItemAtIndex(int index, ref CachedBatch value)
{
switch (index)
{
case 0:
Batch0 = value;
break;
case 1:
Batch1 = value;
break;
case 2:
Batch2 = value;
break;
case 3:
Batch3 = value;
break;
default:
throw new ArgumentOutOfRangeException("index");
}
}
private void GetItemAtIndex(int index, out CachedBatch result)
{
switch (index)
{
case 0:
result = Batch0;
break;
case 1:
result = Batch1;
break;
case 2:
result = Batch2;
break;
case 3:
result = Batch3;
break;
default:
throw new ArgumentOutOfRangeException("index");
}
}
