private unsafe void CreateDescriptorPool(uint maxSets)
{
Device device = _renderer.Params.Device;
AllocationCallbacks *allocator = (AllocationCallbacks *)_renderer.Params.AllocationCallbacks.ToPointer();
Vk vk = _renderer.Vk;
DescriptorPoolSize *descriptorPoolSizes = stackalloc DescriptorPoolSize[]
{
new DescriptorPoolSize()
{
DescriptorCount = 2, // vertex and fragment shader
Type = DescriptorType.UniformBuffer
},
new DescriptorPoolSize()
{
DescriptorCount = 1, // Image
Type = DescriptorType.CombinedImageSampler
}
};
DescriptorPoolCreateInfo descriptorPoolCreateInfo = new()
{
SType = StructureType.DescriptorPoolCreateInfo,
MaxSets = maxSets,
PoolSizeCount = 2,
PPoolSizes = descriptorPoolSizes
};
_renderer.AssertVulkan(vk.CreateDescriptorPool(device, descriptorPoolCreateInfo, allocator, out _pool));
}
private unsafe ShaderModule CreateShader(byte[] code)
{
Device device = _renderer.Params.Device;
AllocationCallbacks *allocator = (AllocationCallbacks *)_renderer.Params.AllocationCallbacks.ToPointer();
Vk vk = _renderer.Vk;
ShaderModuleCreateInfo shaderModuleCreateInfo = new()
{
SType = StructureType.ShaderModuleCreateInfo,
CodeSize = (nuint)(code.Length * sizeof(byte))
};
fixed(byte *ptr = &code[0])
{
shaderModuleCreateInfo.PCode = (uint *)ptr;
}
Result result = vk.CreateShaderModule(device, shaderModuleCreateInfo, allocator, out ShaderModule module);
if (result != Result.Success)
{
Status = false;
_renderer.AssertVulkan(result);
}
return(module);
}
private unsafe DeviceMemory BindImageMemory()
{
Device device = _renderer.Params.Device;
AllocationCallbacks *allocator = (AllocationCallbacks *)_renderer.Params.AllocationCallbacks.ToPointer();
Vk vk = _renderer.Vk;
vk.GetImageMemoryRequirements(device, _image, out MemoryRequirements memReqs);
MemoryAllocateInfo memoryAllocateInfo = new()
{
SType = StructureType.MemoryAllocateInfo,
AllocationSize = memReqs.Size,
MemoryTypeIndex = _renderer.FindMemoryTypeIndex(memReqs.MemoryTypeBits, MemoryPropertyFlags.MemoryPropertyDeviceLocalBit)
};
_renderer.AssertVulkan(vk.AllocateMemory(device, memoryAllocateInfo, allocator, out DeviceMemory memory));
_renderer.AssertVulkan(vk.BindImageMemory(device, _image, memory, 0));
return(memory);
}