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30
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1 import ./vulkan
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2 import ./vulkan_helpers
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3 import ./math/vector
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4 import ./math/matrix
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5 import ./buffer
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6
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7 type
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8 DescriptorType = SomeNumber|Vec|Mat
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9 Descriptor*[T:DescriptorType] = object
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10 value*: T
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11
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12 proc createUniformDescriptorLayout*(device: VkDevice, shaderStage: VkShaderStageFlags, binding: uint32): VkDescriptorSetLayout =
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13 var
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14 layoutbinding = VkDescriptorSetLayoutBinding(
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15 binding: binding,
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16 descriptorType: VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
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17 descriptorCount: 1,
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18 stageFlags: shaderStage,
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19 pImmutableSamplers: nil,
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20 )
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21 layoutInfo = VkDescriptorSetLayoutCreateInfo(
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22 sType: VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
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23 bindingCount: 1,
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24 pBindings: addr(layoutbinding)
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25 )
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26 checkVkResult device.vkCreateDescriptorSetLayout(addr(layoutInfo), nil, addr(result))
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27
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28 proc createUniformBuffers*[nBuffers: static int, T](device: VkDevice, physicalDevice: VkPhysicalDevice): array[nBuffers, Buffer] =
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29 let size = sizeof(T)
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30 for i in 0 ..< nBuffers:
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31 var buffer = InitBuffer(
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32 device,
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33 physicalDevice,
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34 uint64(size),
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35 {UniformBuffer},
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36 {VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, VK_MEMORY_PROPERTY_HOST_COHERENT_BIT},
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37 persistentMapping=true,
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38 )
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39 result[i] = buffer
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