Mercurial > games > semicongine

annotate semiconginev2/old/vulkan/commandbuffer.nim @ 1220:59e683c4728f compiletime-tests

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del: outdated examples
author sam <sam@basx.dev>
date Wed, 17 Jul 2024 21:04:09 +0700
parents 56781cc0fc7c
children
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1 import ../core
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2 import ./device
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3 import ./physicaldevice
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4 import ./syncing
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5
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6 type
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7 CommandBufferPool* = object
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8 device: Device
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9 vk*: VkCommandPool
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10 family*: QueueFamily
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11 buffers*: seq[VkCommandBuffer]
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12
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13 proc CreateCommandBufferPool*(device: Device, family: QueueFamily, nBuffers: int): CommandBufferPool =
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14 assert device.vk.Valid
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15 var createInfo = VkCommandPoolCreateInfo(
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16 sType: VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,
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17 flags: toBits [VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT],
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18 queueFamilyIndex: family.index,
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19 )
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20 result.family = family
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21 result.device = device
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22 checkVkResult device.vk.vkCreateCommandPool(addr createInfo, nil, addr result.vk)
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23
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24 var allocInfo = VkCommandBufferAllocateInfo(
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25 sType: VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
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26 commandPool: result.vk,
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27 level: VK_COMMAND_BUFFER_LEVEL_PRIMARY,
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28 commandBufferCount: uint32(nBuffers),
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29 )
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30 result.buffers = newSeq[VkCommandBuffer](nBuffers)
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31 checkVkResult device.vk.vkAllocateCommandBuffers(addr allocInfo, result.buffers.ToCPointer)
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32
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33 proc PipelineBarrier*(
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34 commandBuffer: VkCommandBuffer,
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35 srcStages: openArray[VkPipelineStageFlagBits],
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36 dstStages: openArray[VkPipelineStageFlagBits],
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37 memoryBarriers: openArray[VkMemoryBarrier] = [],
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38 bufferMemoryBarriers: openArray[VkBufferMemoryBarrier] = [],
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39 imageBarriers: openArray[VkImageMemoryBarrier] = [],
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40 ) =
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42 vkCmdPipelineBarrier(
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43 commandBuffer,
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44 srcStageMask = srcStages.toBits,
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45 dstStageMask = dstStages.toBits,
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46 dependencyFlags = VkDependencyFlags(0),
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47 memoryBarrierCount = uint32(memoryBarriers.len),
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48 pMemoryBarriers = memoryBarriers.ToCPointer,
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49 bufferMemoryBarrierCount = uint32(bufferMemoryBarriers.len),
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50 pBufferMemoryBarriers = bufferMemoryBarriers.ToCPointer,
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51 imageMemoryBarrierCount = uint32(imageBarriers.len),
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52 pImageMemoryBarriers = imageBarriers.ToCPointer,
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53 )
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56 template WithSingleUseCommandBuffer*(device: Device, queue: Queue, commandBuffer, body: untyped): untyped =
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57 # TODO? This is super slow, because we call vkQueueWaitIdle
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58 block:
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59 assert device.vk.Valid
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60 assert queue.vk.Valid
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61
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62 var
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63 commandBufferPool = CreateCommandBufferPool(device, queue.family, 1)
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64 commandBuffer = commandBufferPool.buffers[0]
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65 beginInfo = VkCommandBufferBeginInfo(
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66 sType: VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
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67 flags: VkCommandBufferUsageFlags(VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT),
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68 )
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69 checkVkResult commandBuffer.vkBeginCommandBuffer(addr beginInfo)
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71 block:
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72 body
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73
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74 checkVkResult commandBuffer.vkEndCommandBuffer()
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75 var submitInfo = VkSubmitInfo(
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76 sType: VK_STRUCTURE_TYPE_SUBMIT_INFO,
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77 commandBufferCount: 1,
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78 pCommandBuffers: addr commandBuffer,
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79 )
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80 checkVkResult queue.vk.vkQueueSubmit(1, addr submitInfo, VkFence(0))
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81 checkVkResult queue.vk.vkQueueWaitIdle()
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82 commandBufferPool.Destroy()
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84
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85 proc Destroy*(commandpool: var CommandBufferPool) =
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86 assert commandpool.device.vk.Valid
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87 assert commandpool.vk.Valid
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88 commandpool.device.vk.vkDestroyCommandPool(commandpool.vk, nil)
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89 commandpool.vk.Reset
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90