public VkShaderResourceBindingSlots(VkDevice device, ShaderResourceDescription[] resources)
{
Resources = resources;
VkDescriptorSetLayoutCreateInfo descriptorSetLayoutCI = VkDescriptorSetLayoutCreateInfo.New();
descriptorSetLayoutCI.bindingCount = (uint)resources.Length;
VkDescriptorSetLayoutBinding *bindings = stackalloc VkDescriptorSetLayoutBinding[resources.Length];
for (int i = 0; i < resources.Length; i++)
{
ShaderResourceDescription desc = resources[i];
bindings[i].binding = (uint)i;
bindings[i].descriptorType = MapDescriptorType(desc.Type);
bindings[i].descriptorCount = 1;
bindings[i].stageFlags = MapStageFlags(desc.Stages);
}
descriptorSetLayoutCI.pBindings = bindings;
vkCreateDescriptorSetLayout(device, ref descriptorSetLayoutCI, null, out VkDescriptorSetLayout descriptorSetLayout);
DescriptorSetLayout = descriptorSetLayout;
VkPipelineLayoutCreateInfo pipelineLayoutCI = VkPipelineLayoutCreateInfo.New();
pipelineLayoutCI.setLayoutCount = 1;
pipelineLayoutCI.pSetLayouts = &descriptorSetLayout;
VkResult result = vkCreatePipelineLayout(device, ref pipelineLayoutCI, null, out VkPipelineLayout layout);
CheckResult(result);
PipelineLayout = layout;
}
public VkResourceLayout(VkGraphicsDevice gd, ref ResourceLayoutDescription description)
{
_gd = gd;
VkDescriptorSetLayoutCreateInfo dslCI = VkDescriptorSetLayoutCreateInfo.New();
ResourceLayoutElementDescription[] elements = description.Elements;
_descriptorTypes = new VkDescriptorType[elements.Length];
VkDescriptorSetLayoutBinding *bindings = stackalloc VkDescriptorSetLayoutBinding[elements.Length];
for (uint i = 0; i < elements.Length; i++)
{
bindings[i].binding = i;
bindings[i].descriptorCount = 1;
VkDescriptorType descriptorType = VkFormats.VdToVkDescriptorType(elements[i].Kind);
bindings[i].descriptorType = descriptorType;
bindings[i].stageFlags = VkFormats.VdToVkShaderStages(elements[i].Stages);
_descriptorTypes[i] = descriptorType;
}
dslCI.bindingCount = (uint)elements.Length;
dslCI.pBindings = bindings;
VkResult result = vkCreateDescriptorSetLayout(_gd.Device, ref dslCI, null, out _dsl);
CheckResult(result);
}
public void Set(params VkDescriptorSetLayoutBinding[] value)
{
IntPtr ptr = (IntPtr)this.pointer;
value.Set(ref ptr, ref this.count);
this.pointer = (VkDescriptorSetLayoutBinding *)ptr;
}
private VkDescriptorSetLayout CreateDescriptorSetLayout()
{
VkDescriptorSetLayoutBinding *bindings = stackalloc VkDescriptorSetLayoutBinding[2];
bindings[0] = new VkDescriptorSetLayoutBinding
{
binding = 0,
descriptorType = VkDescriptorType.UniformBuffer,
descriptorCount = 1,
stageFlags = VkShaderStageFlags.Vertex
};
bindings[1] = new VkDescriptorSetLayoutBinding
{
binding = 1,
descriptorType = VkDescriptorType.CombinedImageSampler,
descriptorCount = 1,
stageFlags = VkShaderStageFlags.Fragment
};
var createInfo = new VkDescriptorSetLayoutCreateInfo
{
sType = VkStructureType.DescriptorSetLayoutCreateInfo,
pNext = null,
bindingCount = 2,
pBindings = bindings
};
VkDescriptorSetLayout layout;
vkCreateDescriptorSetLayout(Context.Device, &createInfo, null, out layout).CheckResult();
return(layout);
}
public static VkDescriptorSetLayoutCreateInfo descriptorSetLayoutCreateInfo(
VkDescriptorSetLayoutBinding *pBindings,
uint bindingCount)
{
VkDescriptorSetLayoutCreateInfo descriptorSetLayoutCreateInfo = VkDescriptorSetLayoutCreateInfo.New();
descriptorSetLayoutCreateInfo.pBindings = pBindings;
descriptorSetLayoutCreateInfo.bindingCount = bindingCount;
return(descriptorSetLayoutCreateInfo);
}
public VkDescriptorSetLayoutBindingGroup(params VkDescriptorSetLayoutBinding[] value)
{
this.count = 0;
this.pointer = null;
if (value != null)
{
IntPtr ptr = IntPtr.Zero;
value.Set(ref ptr, ref this.count);
this.pointer = (VkDescriptorSetLayoutBinding *)ptr;
}
}
public VkResourceLayout(VkGraphicsDevice gd, ref ResourceLayoutDescription description)
: base(ref description)
{
_gd = gd;
VkDescriptorSetLayoutCreateInfo dslCI = VkDescriptorSetLayoutCreateInfo.New();
ResourceLayoutElementDescription[] elements = description.Elements;
_descriptorTypes = new VkDescriptorType[elements.Length];
VkDescriptorSetLayoutBinding *bindings = stackalloc VkDescriptorSetLayoutBinding[elements.Length];
uint uniformBufferCount = 0;
uint sampledImageCount = 0;
uint samplerCount = 0;
uint storageBufferCount = 0;
uint storageImageCount = 0;
for (uint i = 0; i < elements.Length; i++)
{
bindings[i].binding = i;
bindings[i].descriptorCount = 1;
VkDescriptorType descriptorType = VkFormats.VdToVkDescriptorType(elements[i].Kind, elements[i].Options);
bindings[i].descriptorType = descriptorType;
bindings[i].stageFlags = VkFormats.VdToVkShaderStages(elements[i].Stages);
if ((elements[i].Options & ResourceLayoutElementOptions.DynamicBinding) != 0)
{
DynamicBufferCount += 1;
}
_descriptorTypes[i] = descriptorType;
switch (descriptorType)
{
case VkDescriptorType.Sampler:
samplerCount += 1;
break;
case VkDescriptorType.SampledImage:
sampledImageCount += 1;
break;
case VkDescriptorType.StorageImage:
storageImageCount += 1;
break;
case VkDescriptorType.UniformBuffer:
uniformBufferCount += 1;
break;
case VkDescriptorType.StorageBuffer:
storageBufferCount += 1;
break;
}
}
DescriptorResourceCounts = new DescriptorResourceCounts(
uniformBufferCount,
sampledImageCount,
samplerCount,
storageBufferCount,
storageImageCount);
dslCI.bindingCount = (uint)elements.Length;
dslCI.pBindings = bindings;
VkResult result = vkCreateDescriptorSetLayout(_gd.Device, ref dslCI, null, out _dsl);
CheckResult(result);
}
