public MTLResourceLayout(ref ResourceLayoutDescription description, MTLGraphicsDevice gd)
: base(ref description)
{
ResourceLayoutElementDescription[] elements = description.Elements;
#if !VALIDATE_USAGE
ResourceKinds = new ResourceKind[elements.Length];
for (int i = 0; i < elements.Length; i++)
{
ResourceKinds[i] = elements[i].Kind;
}
#endif
_bindingInfosByVdIndex = new ResourceBindingInfo[elements.Length];
uint bufferIndex = 0;
uint texIndex = 0;
uint samplerIndex = 0;
for (int i = 0; i < _bindingInfosByVdIndex.Length; i++)
{
uint slot;
switch (elements[i].Kind)
{
case ResourceKind.UniformBuffer:
slot = bufferIndex++;
break;
case ResourceKind.StructuredBufferReadOnly:
slot = bufferIndex++;
break;
case ResourceKind.StructuredBufferReadWrite:
slot = bufferIndex++;
break;
case ResourceKind.TextureReadOnly:
slot = texIndex++;
break;
case ResourceKind.TextureReadWrite:
slot = texIndex++;
break;
case ResourceKind.Sampler:
slot = samplerIndex++;
break;
default: throw Illegal.Value <ResourceKind>();
}
_bindingInfosByVdIndex[i] = new ResourceBindingInfo(slot, elements[i].Stages, elements[i].Kind);
}
BufferCount = bufferIndex;
TextureCount = texIndex;
SamplerCount = samplerIndex;
}
internal BackendInfoMetal(MTLGraphicsDevice gd)
{
_gd = gd;
_featureSet = new ReadOnlyCollection <MTLFeatureSet>(_gd.MetalFeatures.ToArray());
}
public MTLResourceSet(ref ResourceSetDescription description, MTLGraphicsDevice gd)
: base(ref description)
{
Resources = Util.ShallowClone(description.BoundResources);
Layout = Util.AssertSubtype <ResourceLayout, MTLResourceLayout>(description.Layout);
}
