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comparison src/zamikongine/buffer.nim @ 28:b1b05d4efb52

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big refactoring, part1
author Sam <sam@basx.dev>
date Sat, 14 Jan 2023 14:08:00 +0700
parents b55d6ecde79d
children 9edca5dc4e93
comparison
equal deleted inserted replaced
27:8cb2d96ac28e 28:b1b05d4efb52
4 type 4 type
5 BufferType* = enum 5 BufferType* = enum
6 None = 0 6 None = 0
7 TransferSrc = VK_BUFFER_USAGE_TRANSFER_SRC_BIT 7 TransferSrc = VK_BUFFER_USAGE_TRANSFER_SRC_BIT
8 TransferDst = VK_BUFFER_USAGE_TRANSFER_DST_BIT 8 TransferDst = VK_BUFFER_USAGE_TRANSFER_DST_BIT
9 UniformBuffer = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT
9 IndexBuffer = VK_BUFFER_USAGE_INDEX_BUFFER_BIT 10 IndexBuffer = VK_BUFFER_USAGE_INDEX_BUFFER_BIT
10 VertexBuffer = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT 11 VertexBuffer = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT
11 Buffer* = object 12 Buffer* = object
12 device*: VkDevice 13 device*: VkDevice
13 vkBuffer*: VkBuffer 14 vkBuffer*: VkBuffer
14 size*: uint64 15 size*: uint64
15 memoryRequirements*: VkMemoryRequirements 16 memoryRequirements*: VkMemoryRequirements
16 memory*: VkDeviceMemory 17 memory*: VkDeviceMemory
17 bufferTypes*: set[BufferType] 18 bufferTypes*: set[BufferType]
19 persistentMapping: bool
20 mapped: pointer
18 21
19 proc trash*(buffer: var Buffer) = 22 proc trash*(buffer: var Buffer) =
20 assert int64(buffer.vkBuffer) != 0 23 assert int64(buffer.vkBuffer) != 0
21 assert int64(buffer.memory) != 0 24 assert int64(buffer.memory) != 0
22 vkDestroyBuffer(buffer.device, buffer.vkBuffer, nil) 25 vkDestroyBuffer(buffer.device, buffer.vkBuffer, nil)
35 proc InitBuffer*( 38 proc InitBuffer*(
36 device: VkDevice, 39 device: VkDevice,
37 physicalDevice: VkPhysicalDevice, 40 physicalDevice: VkPhysicalDevice,
38 size: uint64, 41 size: uint64,
39 bufferTypes: set[BufferType], 42 bufferTypes: set[BufferType],
40 properties: set[VkMemoryPropertyFlagBits] 43 properties: set[VkMemoryPropertyFlagBits],
44 persistentMapping: bool = false
41 ): Buffer = 45 ): Buffer =
42 result = Buffer(device: device, size: size, bufferTypes: bufferTypes) 46 result = Buffer(device: device, size: size, bufferTypes: bufferTypes, persistentMapping: persistentMapping)
43 var usageFlags = 0 47 var usageFlags = 0
44 for usage in bufferTypes: 48 for usage in bufferTypes:
45 usageFlags = ord(usageFlags) or ord(usage) 49 usageFlags = ord(usageFlags) or ord(usage)
46 var bufferInfo = VkBufferCreateInfo( 50 var bufferInfo = VkBufferCreateInfo(
47 sType: VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO, 51 sType: VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
61 allocationSize: result.memoryRequirements.size, 65 allocationSize: result.memoryRequirements.size,
62 memoryTypeIndex: result.findMemoryType(physicalDevice, VkMemoryPropertyFlags(memoryProperties)) 66 memoryTypeIndex: result.findMemoryType(physicalDevice, VkMemoryPropertyFlags(memoryProperties))
63 ) 67 )
64 checkVkResult result.device.vkAllocateMemory(addr(allocInfo), nil, addr(result.memory)) 68 checkVkResult result.device.vkAllocateMemory(addr(allocInfo), nil, addr(result.memory))
65 checkVkResult result.device.vkBindBufferMemory(result.vkBuffer, result.memory, VkDeviceSize(0)) 69 checkVkResult result.device.vkBindBufferMemory(result.vkBuffer, result.memory, VkDeviceSize(0))
70 if persistentMapping:
71 checkVkResult vkMapMemory(
72 result.device,
73 result.memory,
74 offset=VkDeviceSize(0),
75 VkDeviceSize(result.size),
76 VkMemoryMapFlags(0),
77 addr(result.mapped)
78 )
66 79
67 80
68 template withMapping*(buffer: Buffer, data: pointer, body: untyped): untyped = 81 template withMapping*(buffer: Buffer, data: pointer, body: untyped): untyped =
82 assert not buffer.persistentMapping
69 checkVkResult vkMapMemory(buffer.device, buffer.memory, offset=VkDeviceSize(0), VkDeviceSize(buffer.size), VkMemoryMapFlags(0), addr(data)) 83 checkVkResult vkMapMemory(buffer.device, buffer.memory, offset=VkDeviceSize(0), VkDeviceSize(buffer.size), VkMemoryMapFlags(0), addr(data))
70 body 84 body
71 vkUnmapMemory(buffer.device, buffer.memory) 85 vkUnmapMemory(buffer.device, buffer.memory)
72 86
87 # note: does not work with seq
88 proc updateData*[T](buffer: Buffer, data: var T) =
89 if buffer.persistentMapping:
90 copyMem(buffer.mapped, addr(data), sizeof(T))
91 else:
92 var p: pointer
93 buffer.withMapping(p):
94 copyMem(p, addr(data), sizeof(T))
73 95
74 proc copyBuffer*(commandPool: VkCommandPool, queue: VkQueue, src, dst: Buffer, size: uint64) = 96 proc copyBuffer*(commandPool: VkCommandPool, queue: VkQueue, src, dst: Buffer, size: uint64) =
75 assert uint64(src.device) == uint64(dst.device) 97 assert uint64(src.device) == uint64(dst.device)
76 var 98 var
77 allocInfo = VkCommandBufferAllocateInfo( 99 allocInfo = VkCommandBufferAllocateInfo(