internal static RenderTargetViewDescription CreateDefault(Resource resource)
{
var result = new RenderTargetViewDescription();
switch (resource.ResourceType)
{
case ResourceType.Texture1D:
{
var texture = (Texture1D) resource;
if (texture.Description.ArraySize > 1)
{
result.Dimension = RenderTargetViewDimension.Texture1DArray;
result.Texture1DArray.ArraySize = texture.Description.ArraySize;
result.Texture1DArray.FirstArraySlice = 0;
result.Texture1DArray.MipSlice = 0;
}
else
{
result.Dimension = RenderTargetViewDimension.Texture1D;
result.Texture1D.MipSlice = 0;
}
break;
}
case ResourceType.Texture2D:
{
var texture = (Texture2D) resource;
if (texture.Description.ArraySize > 1)
{
result.Dimension = RenderTargetViewDimension.Texture2DArray;
result.Texture2DArray.ArraySize = texture.Description.ArraySize;
result.Texture2DArray.FirstArraySlice = 0;
result.Texture2DArray.MipSlice = 0;
}
else
{
result.Dimension = RenderTargetViewDimension.Texture2D;
result.Texture2D.MipSlice = 0;
}
break;
}
case ResourceType.Texture3D:
{
var texture = (Texture3D) resource;
result.Dimension = RenderTargetViewDimension.Texture3D;
result.Texture3D.DepthSliceCount = texture.Description.Depth;
result.Texture3D.FirstDepthSlice = 0;
result.Texture3D.MipSlice = 0;
break;
}
default:
throw new ArgumentOutOfRangeException();
}
return result;
}
public static InnerResourceView Create(Resource resource, RenderTargetViewDescription description)
{
switch (description.Dimension)
{
case RenderTargetViewDimension.Texture1D:
return new Texture1DView((Texture1D) resource, description.Texture1D);
case RenderTargetViewDimension.Texture1DArray:
return new Texture1DArrayView((Texture1D) resource, description.Texture1DArray);
case RenderTargetViewDimension.Texture2D:
return new Texture2DView((Texture2D) resource, description.Texture2D);
case RenderTargetViewDimension.Texture2DArray:
return new Texture2DArrayView((Texture2D) resource, description.Texture2DArray);
case RenderTargetViewDimension.Texture2DMultisampled:
throw new NotImplementedException();
case RenderTargetViewDimension.Texture2DMultisampledArray:
throw new NotImplementedException();
case RenderTargetViewDimension.Texture3D:
return new Texture3DView((Texture3D) resource, description.Texture3D);
default:
throw new ArgumentOutOfRangeException();
}
}
public Texture2DArrayView(Texture2D resource, RenderTargetViewDescription.Texture2DArrayResource description)
{
_subresources = new Texture2D.Texture2DSubresource[description.ArraySize];
for (int i = description.FirstArraySlice; i < description.FirstArraySlice + description.ArraySize; i++)
_subresources[i] = resource.GetSubresource(i, description.MipSlice);
}
internal RenderTargetView(Device device, Resource resource, RenderTargetViewDescription? description)
: base(device, resource)
{
_description = description.GetValueOrDefault(RenderTargetViewDescription.CreateDefault(resource));
_innerView = InnerResourceView.Create(resource, _description);
}
internal RenderTargetView(Device device, Resource resource, RenderTargetViewDescription?description)
: base(device, resource)
{
_description = description.GetValueOrDefault(RenderTargetViewDescription.CreateDefault(resource));
_innerView = InnerResourceView.Create(resource, _description);
}
public Texture2DView(Texture2D resource, RenderTargetViewDescription.Texture2DResource description)
{
_subresource = resource.GetSubresource(0, description.MipSlice);
}
public Texture3DView(Texture3D resource, RenderTargetViewDescription.Texture3DResource description)
{
_subresource = resource.GetSubresource(description.MipSlice);
_firstDepthSlice = description.FirstDepthSlice;
_depthSliceCount = description.DepthSliceCount;
}