VkDescriptorSet CreateDescriptorSet(VkDevice device, VkDescriptorSetLayout descriptorSetLayout)
{
VkDescriptorPool descriptorPool;
{
// this pool can allocate one uniform descriptor.
var info = new VkDescriptorPoolCreateInfo {
sType = VkStructureType.DescriptorPoolCreateInfo
};
var size = new VkDescriptorPoolSize(VkDescriptorType.UniformBuffer, 1);
info.poolSizes = size;
info.maxSets = 1;
vkAPI.vkCreateDescriptorPool(device, &info, null, &descriptorPool).Check();
info.Free();
}
VkDescriptorSet descriptorSet;
{
var info = new VkDescriptorSetAllocateInfo {
sType = VkStructureType.DescriptorSetAllocateInfo
};
info.setLayouts = descriptorSetLayout;
info.descriptorPool = descriptorPool;
vkAPI.vkAllocateDescriptorSets(device, &info, &descriptorSet).Check();
info.Free();
}
return(descriptorSet);
}
private static VkDescriptorPool CreateDescriptorPool(VkDevice device, uint swapchainImageCount, uint textureCount)
{
VkDescriptorPoolSize[] sizes = new VkDescriptorPoolSize[2];
sizes[0] = new VkDescriptorPoolSize();
sizes[0].descriptorCount = swapchainImageCount * textureCount;
sizes[0].type = VkDescriptorType.CombinedImageSampler;
sizes[1] = new VkDescriptorPoolSize();
sizes[1].descriptorCount = swapchainImageCount * 1;
sizes[1].type = VkDescriptorType.UniformBuffer;
VkDescriptorPoolCreateInfo createInfo = VkDescriptorPoolCreateInfo.New();
createInfo.poolSizeCount = 2;
fixed(VkDescriptorPoolSize *ptr = sizes)
createInfo.pPoolSizes = ptr;
createInfo.maxSets = swapchainImageCount;
VkDescriptorPool pool = VkDescriptorPool.Null;
Assert(vkCreateDescriptorPool(device, &createInfo, null, &pool));
return(pool);
}
public DescriptorPool(Device dev, VkDescriptorPoolCreateFlag flags, uint maxSets,
Dictionary <VkDescriptorType, uint> countByType)
{
unsafe
{
var pools = stackalloc VkDescriptorPoolSize[countByType.Count];
var i = 0;
foreach (var kv in countByType)
{
pools[i++] = new VkDescriptorPoolSize()
{
Type = kv.Key,
DescriptorCount = kv.Value
}
}
;
Device = dev;
var info = new VkDescriptorPoolCreateInfo()
{
SType = VkStructureType.DescriptorPoolCreateInfo,
Flags = flags,
MaxSets = maxSets,
PNext = IntPtr.Zero,
PoolSizeCount = (uint)countByType.Count,
PPoolSizes = pools
};
Handle = dev.Handle.CreateDescriptorPool(&info, dev.Instance.AllocationCallbacks);
}
}
public static VkDescriptorPoolSize descriptorPoolSize(
VkDescriptorType type,
uint descriptorCount)
{
VkDescriptorPoolSize descriptorPoolSize = new VkDescriptorPoolSize();
descriptorPoolSize.type = type;
descriptorPoolSize.descriptorCount = descriptorCount;
return(descriptorPoolSize);
}
private void PrepareDescriptor(VkDevice device)
{
// 定数バッファを１つだけ持つものを作る.
VkDescriptorPoolSize descriptorPoolSize = new VkDescriptorPoolSize()
{
descriptorCount = 1,
type = VkDescriptorType.VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
};
var descriptorPoolCreateInfo = new VkDescriptorPoolCreateInfo()
{
poolSizes = new[] { descriptorPoolSize },
maxSets = 1,
flags = VkDescriptorPoolCreateFlags.VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT,
};
VulkanAPI.vkCreateDescriptorPool(device, ref descriptorPoolCreateInfo, out m_descriptorPool);
// ディスクリプタセットレイアウトの作成.
// 今は定数バッファを１つ持つだけのものを作成.
var descriptorLayoutBinding = new VkDescriptorSetLayoutBinding();
descriptorLayoutBinding.binding = 0;
descriptorLayoutBinding.descriptorCount = 1;
descriptorLayoutBinding.descriptorType = VkDescriptorType.VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptorLayoutBinding.stageFlags = VkShaderStageFlagBits.VK_SHADER_STAGE_VERTEX_BIT;
var descriptorSetLayoutCreateInfo = new VkDescriptorSetLayoutCreateInfo();
descriptorSetLayoutCreateInfo.bindings = new[] { descriptorLayoutBinding };
VulkanAPI.vkCreateDescriptorSetLayout(device, ref descriptorSetLayoutCreateInfo, out m_descriptorSetLayout);
// ディスクリプタセットを作成.
VkDescriptorSet[] descriptorSets;
var descriptorSetAllocateInfo = new VkDescriptorSetAllocateInfo(m_descriptorPool, new[] { m_descriptorSetLayout });
VulkanAPI.vkAllocateDescriptorSets(device, ref descriptorSetAllocateInfo, out descriptorSets);
m_descriptorSet = descriptorSets[0];
// ディスクリプタを更新.
// 定数バッファ１つを持つレイアウトでディスクリプタを作る.
VkDescriptorBufferInfo descUniformBufferInfo = new VkDescriptorBufferInfo();
descUniformBufferInfo.buffer = m_uniformBuffer;
descUniformBufferInfo.range = Marshal.SizeOf <Transform>();
var descriptor = new VkWriteDescriptorSet();
descriptor.descriptorCount = 1;
descriptor.descriptorType = VkDescriptorType.VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descriptor.pBufferInfo = new[] { descUniformBufferInfo };
descriptor.dstBinding = 0;
descriptor.dstSet = m_descriptorSet;
VulkanAPI.vkUpdateDescriptorSets(device, new[] { descriptor }, null);
}
void setupDescriptorPool()
{
// Example uses one ubo
VkDescriptorPoolSize poolSizes = Initializers.descriptorPoolSize(VkDescriptorType.UniformBuffer, 1);
VkDescriptorPoolCreateInfo descriptorPoolInfo =
Initializers.descriptorPoolCreateInfo(
1,
&poolSizes,
2);
Util.CheckResult(vkCreateDescriptorPool(device, &descriptorPoolInfo, null, out descriptorPool));
}
void setupDescriptorPool()
{
VkDescriptorPoolSize poolSizes = new VkDescriptorPoolSize()
{
type = VkDescriptorType.UniformBuffer, descriptorCount = 1
};
VkDescriptorPoolCreateInfo descriptorPoolInfo =
VkDescriptorPoolCreateInfo.New();
descriptorPoolInfo.poolSizeCount = 1;
descriptorPoolInfo.pPoolSizes = &poolSizes;
descriptorPoolInfo.maxSets = 2;
Util.CheckResult(vkCreateDescriptorPool(Device, &descriptorPoolInfo, null, out descriptorPool));
}
void CreateDescriptorPool()
{
var poolSize = new VkDescriptorPoolSize();
poolSize.type = VkDescriptorType.UniformBuffer;
poolSize.descriptorCount = 1;
var info = new VkDescriptorPoolCreateInfo();
info.poolSizes = new List <VkDescriptorPoolSize> {
poolSize
};
info.maxSets = 1;
descriptorPool = new VkDescriptorPool(device, info);
}
void setupDescriptorPool()
{
// Example uses one ubo and one image sampler
var poolSizes = new VkDescriptorPoolSize[2];
poolSizes[0].type = VkDescriptorType.UniformBuffer;
poolSizes[0].descriptorCount = 1;
poolSizes[1].type = VkDescriptorType.CombinedImageSampler;
poolSizes[1].descriptorCount = 1;
var poolInfo = VkDescriptorPoolCreateInfo.Alloc();
poolInfo[0].poolSizes = poolSizes;
poolInfo[0].maxSets = 2;
{
VkDescriptorPool pool;
vkCreateDescriptorPool(device, poolInfo, null, &pool);
descriptorPool = pool;
}
}
void setupDescriptorPool()
{
// Example uses one ubo and one image sampler
var poolSizes = new VkDescriptorPoolSize[] {
new VkDescriptorPoolSize(VkDescriptorType.UniformBuffer, 1),
new VkDescriptorPoolSize(VkDescriptorType.UniformBufferDynamic, 1),
new VkDescriptorPoolSize(VkDescriptorType.CombinedImageSampler, 1),
};
var info = new VkDescriptorPoolCreateInfo();
info.sType = DescriptorPoolCreateInfo;
info.poolSizes = poolSizes;
info.maxSets = 2;
VkDescriptorPool pool;
vkCreateDescriptorPool(device, &info, null, &pool);
this.descriptorPool = pool;
}
void setupDescriptorPool()
{
// Example uses three ubos and one image sampler
var poolSizes = new VkDescriptorPoolSize[2];
poolSizes[0].type = VkDescriptorType.UniformBuffer;
poolSizes[0].descriptorCount = 4;
poolSizes[1].type = VkDescriptorType.CombinedImageSampler;
poolSizes[1].descriptorCount = 6;
var descriptorPoolInfo = VkDescriptorPoolCreateInfo.Alloc();
descriptorPoolInfo->poolSizes = poolSizes;
descriptorPoolInfo->maxSets = 2;
VkDescriptorPool pool;
vkCreateDescriptorPool(device, descriptorPoolInfo, null, &pool);
this.descriptorPool = pool;
Marshal.FreeHGlobal((IntPtr)descriptorPoolInfo);
}
private void PrepareDescriptor(VkDevice device)
{
// 今は定数バッファを１つを格納できるだけのディスクリプタプールを準備.
var descriptorPoolSize = new VkDescriptorPoolSize()
{
descriptorCount = 1,
type = VkDescriptorType.VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
};
m_descriptorPool = m_resourceManager.CreateDescriptorPool(device, new[] { descriptorPoolSize }, 1);
// ディスクリプタセットレイアウトの作成.
// - 定数バッファを１つ
var descLayoutBinding = new VkDescriptorSetLayoutBinding()
{
binding = 0,
descriptorCount = 1,
descriptorType = VkDescriptorType.VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
stageFlags = VkShaderStageFlagBits.VK_SHADER_STAGE_VERTEX_BIT
};
m_descriptorSetLayout = m_resourceManager.CreateDescriptorSetLayout(device, new[] { descLayoutBinding });
// ディスクリプタを作成＆更新.
VkDescriptorSet[] descriptorSets;
var descriptorSetAllocateInfo = new VkDescriptorSetAllocateInfo(m_descriptorPool, new[] { m_descriptorSetLayout });
VulkanAPI.vkAllocateDescriptorSets(device, ref descriptorSetAllocateInfo, out descriptorSets);
m_descriptorSet = descriptorSets[0];
var descUniform = new VkDescriptorBufferInfo()
{
buffer = m_uniformBuffer,
range = Marshal.SizeOf <Transform>(),
};
var descForUniform = SampleHelpers.CreateDescriptorFromUniformBuffer(0, descUniform, m_descriptorSet);
var descriptorWrites = new[] { descForUniform };
VulkanAPI.vkUpdateDescriptorSets(device, descriptorWrites, null);
}
void CreateDescriptorPool()
{
var size1 = new VkDescriptorPoolSize();
size1.type = VkDescriptorType.UniformBuffer;
size1.descriptorCount = 1;
var size2 = new VkDescriptorPoolSize();
size2.type = VkDescriptorType.CombinedImageSampler;
size2.descriptorCount = 1;
var poolSizes = new List <VkDescriptorPoolSize> {
size1, size2
};
var info = new VkDescriptorPoolCreateInfo();
info.poolSizes = poolSizes;
info.maxSets = 1;
descriptorPool = new VkDescriptorPool(device, info);
}
private VkDescriptorPool CreateVulkanDescriptorPool()
{
VkDescriptorPool vulkanDescriptorPool = VK_NULL_HANDLE;
var vulkanDescriptorPoolSizes = Array.Empty <VkDescriptorPoolSize>();
var descriptorPoolCreateInfo = new VkDescriptorPoolCreateInfo {
sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO,
flags = (uint)VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT,
maxSets = 1,
};
var resources = Resources;
var resourcesLength = resources.Length;
if (resourcesLength != 0)
{
var vulkanDescriptorPoolSizesCount = 0;
var constantBufferCount = 0;
var textureCount = 0;
for (var resourceIndex = 0; resourceIndex < resourcesLength; resourceIndex++)
{
var resource = resources[resourceIndex];
switch (resource.Kind)
{
case GraphicsPipelineResourceKind.ConstantBuffer:
{
if (constantBufferCount == 0)
{
vulkanDescriptorPoolSizesCount++;
}
constantBufferCount++;
break;
}
case GraphicsPipelineResourceKind.Texture:
{
if (textureCount == 0)
{
vulkanDescriptorPoolSizesCount++;
}
textureCount++;
break;
}
default:
{
break;
}
}
}
vulkanDescriptorPoolSizes = new VkDescriptorPoolSize[vulkanDescriptorPoolSizesCount];
var vulkanDescriptorPoolSizesIndex = 0;
if (constantBufferCount != 0)
{
vulkanDescriptorPoolSizes[vulkanDescriptorPoolSizesIndex] = new VkDescriptorPoolSize {
type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
descriptorCount = unchecked ((uint)constantBufferCount),
};
vulkanDescriptorPoolSizesIndex++;
}
if (textureCount != 0)
{
vulkanDescriptorPoolSizes[vulkanDescriptorPoolSizesIndex] = new VkDescriptorPoolSize {
type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
descriptorCount = unchecked ((uint)textureCount),
};
vulkanDescriptorPoolSizesIndex++;
}
fixed(VkDescriptorPoolSize *pVulkanDescriptorPoolSizes = vulkanDescriptorPoolSizes)
{
descriptorPoolCreateInfo.poolSizeCount = unchecked ((uint)vulkanDescriptorPoolSizes.Length);
descriptorPoolCreateInfo.pPoolSizes = pVulkanDescriptorPoolSizes;
ThrowExternalExceptionIfNotSuccess(vkCreateDescriptorPool(Device.VulkanDevice, &descriptorPoolCreateInfo, pAllocator: null, (ulong *)&vulkanDescriptorPool), nameof(vkCreateDescriptorPool));
}
}
return(vulkanDescriptorPool);
}
public unsafe DescriptorPool(DescriptorLayout layout, uint maxSets)
{
_device = layout.Device;
_layout = layout;
_maxSets = maxSets;
var poolSizes = new List <VkDescriptorPoolSize>();
foreach (var binding in layout.Bindings)
{
var poolSizeIndex = poolSizes.FindIndex(
p => p.type == binding.DescriptorType
);
if (poolSizeIndex == -1)
{
poolSizes.Add(new VkDescriptorPoolSize
{
type = binding.DescriptorType,
descriptorCount = binding.DescriptorCounts
});
}
else
{
poolSizes[poolSizeIndex] = new VkDescriptorPoolSize
{
type = binding.DescriptorType,
descriptorCount = (
poolSizes[poolSizeIndex].descriptorCount +
binding.DescriptorCounts
)
};
}
}
var vulkanPoolSizes = new NativeList <VkDescriptorPoolSize>();
foreach (var p in poolSizes)
{
vulkanPoolSizes.Add(p);
}
var createInfo = new VkDescriptorPoolCreateInfo
{
sType = VkStructureType.DescriptorPoolCreateInfo,
maxSets = maxSets,
poolSizeCount = vulkanPoolSizes.Count,
pPoolSizes = (VkDescriptorPoolSize *)vulkanPoolSizes.Data.ToPointer()
};
VkDescriptorPool descriptorPool;
if (VulkanNative.vkCreateDescriptorPool(
_device.Handle,
&createInfo,
null,
&descriptorPool
) != VkResult.Success)
{
throw new Exception("failed to create descriptor pool");
}
_handle = descriptorPool;
}
private void PrepareDescriptor(VkDevice device)
{
// 今は定数バッファを１つ、サンプラーを１つを格納できるだけのディスクリプタプールを準備.
VkDescriptorPoolSize descriptorPoolSize = new VkDescriptorPoolSize()
{
descriptorCount = 1,
type = VkDescriptorType.VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
};
VkDescriptorPoolSize descriptorPoolSizeForSampler = new VkDescriptorPoolSize()
{
descriptorCount = 1,
type = VkDescriptorType.VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
};
var descriptorPoolCreateInfo = new VkDescriptorPoolCreateInfo()
{
poolSizes = new[] { descriptorPoolSize, descriptorPoolSizeForSampler },
maxSets = 1,
flags = VkDescriptorPoolCreateFlags.VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT,
};
VulkanAPI.vkCreateDescriptorPool(device, ref descriptorPoolCreateInfo, out m_descriptorPool);
// ディスクリプタセットレイアウトの作成.
// - 定数バッファを１つ
// - テクスチャサンプラ１つ
var descLayoutBindingForUniform = new VkDescriptorSetLayoutBinding();
descLayoutBindingForUniform.binding = 0;
descLayoutBindingForUniform.descriptorCount = 1;
descLayoutBindingForUniform.descriptorType = VkDescriptorType.VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
descLayoutBindingForUniform.stageFlags = VkShaderStageFlagBits.VK_SHADER_STAGE_VERTEX_BIT;
var descLayoutBindingForSampler = new VkDescriptorSetLayoutBinding();
descLayoutBindingForSampler.binding = 1;
descLayoutBindingForSampler.descriptorCount = 1;
descLayoutBindingForSampler.descriptorType = VkDescriptorType.VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
descLayoutBindingForSampler.stageFlags = VkShaderStageFlagBits.VK_SHADER_STAGE_FRAGMENT_BIT;
var descriptorSetLayoutCreateInfo = new VkDescriptorSetLayoutCreateInfo();
descriptorSetLayoutCreateInfo.bindings = new[] {
descLayoutBindingForUniform,
descLayoutBindingForSampler
};
VulkanAPI.vkCreateDescriptorSetLayout(device, ref descriptorSetLayoutCreateInfo, out m_descriptorSetLayout);
// ディスクリプタを作成＆更新.
VkDescriptorSet[] descriptorSets;
var descriptorSetAllocateInfo = new VkDescriptorSetAllocateInfo(m_descriptorPool, new[] { m_descriptorSetLayout });
VulkanAPI.vkAllocateDescriptorSets(device, ref descriptorSetAllocateInfo, out descriptorSets);
m_descriptorSet = descriptorSets[0];
var descUniform = new VkDescriptorBufferInfo()
{
buffer = m_uniformBuffer,
range = Marshal.SizeOf <Transform>(),
};
var descSampler = new VkDescriptorImageInfo()
{
imageView = m_imageView,
sampler = m_imageSampler,
};
var descForUniform = SampleHelpers.CreateDescriptorFromUniformBuffer(0, descUniform, m_descriptorSet);
var descForSampler = SampleHelpers.CreateDescriptorFromImageSampler(1, descSampler, m_descriptorSet);
var descriptorWrites = new[] { descForUniform, descForSampler };
VulkanAPI.vkUpdateDescriptorSets(device, descriptorWrites, null);
}
