Mercurial > games > semicongine

annotate semiconginev2/old/vulkan/swapchain.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del: outdated examples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 std/options
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2 import std/strformat
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3 import std/logging
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4
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5 import ../core
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6 import ./device
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7 import ./physicaldevice
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8 import ./image
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9 import ./framebuffer
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10 import ./syncing
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11
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12 type
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13 Swapchain* = object
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14 device*: Device
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15 vk*: VkSwapchainKHR
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16 dimension*: TVec2[uint32]
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17 nFramebuffers*: uint32
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18 currentInFlight*: int
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19 currentFramebufferIndex: uint32
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20 samples: VkSampleCountFlagBits
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21 colorImage: VulkanImage
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22 colorImageView: ImageView
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23 framebufferViews*: seq[ImageView]
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24 framebuffers*: seq[Framebuffer]
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25 queueFinishedFence*: seq[Fence]
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26 imageAvailableSemaphore*: seq[Semaphore]
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27 renderFinishedSemaphore*: seq[Semaphore]
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28 # required for recreation:
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29 renderPass: VkRenderPass
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30 surfaceFormat: VkSurfaceFormatKHR
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31 inFlightFrames*: int
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32 presentQueue: Queue
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33 vSync: bool
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34
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35
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36 proc CreateSwapchain*(
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37 device: Device,
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38 renderPass: VkRenderPass,
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39 surfaceFormat: VkSurfaceFormatKHR,
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40 inFlightFrames: int,
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41 samples: VkSampleCountFlagBits,
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42 desiredFramebufferCount = 3'u32,
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43 oldSwapchain = VkSwapchainKHR(0),
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44 vSync = false,
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45 ): Option[Swapchain] =
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46 assert device.vk.Valid
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47 assert device.physicalDevice.vk.Valid
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48 assert renderPass.Valid
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49 assert inFlightFrames > 0
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50
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51 var capabilities = device.physicalDevice.GetSurfaceCapabilities()
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52 if capabilities.currentExtent.width == 0 or capabilities.currentExtent.height == 0:
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53 return none(Swapchain)
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54
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55 var minFramebufferCount = desiredFramebufferCount
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56
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57 # following is according to vulkan specs
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58 minFramebufferCount = max(minFramebufferCount, capabilities.minImageCount)
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59 if capabilities.maxImageCount != 0:
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60 minFramebufferCount = min(minFramebufferCount, capabilities.maxImageCount)
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61 let hasTripleBuffering = VK_PRESENT_MODE_MAILBOX_KHR in device.physicalDevice.GetSurfacePresentModes()
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62 var createInfo = VkSwapchainCreateInfoKHR(
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63 sType: VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR,
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64 surface: device.physicalDevice.surface,
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65 minImageCount: minFramebufferCount,
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66 imageFormat: surfaceFormat.format,
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67 imageColorSpace: surfaceFormat.colorSpace,
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68 imageExtent: capabilities.currentExtent,
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69 imageArrayLayers: 1,
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70 imageUsage: toBits [VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT],
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71 # VK_SHARING_MODE_CONCURRENT no supported currently
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72 imageSharingMode: VK_SHARING_MODE_EXCLUSIVE,
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73 preTransform: capabilities.currentTransform,
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74 compositeAlpha: VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR, # only used for blending with other windows, can be opaque
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75 presentMode: if (vSync or not hasTripleBuffering): VK_PRESENT_MODE_FIFO_KHR else: VK_PRESENT_MODE_MAILBOX_KHR,
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76 clipped: true,
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77 oldSwapchain: oldSwapchain,
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78 )
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79 var
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80 swapchain = Swapchain(
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81 device: device,
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82 surfaceFormat: surfaceFormat,
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83 dimension: TVec2[uint32]([capabilities.currentExtent.width, capabilities.currentExtent.height]),
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84 inFlightFrames: inFlightFrames,
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85 renderPass: renderPass,
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86 vSync: vSync,
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87 samples: samples,
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88 )
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89
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90 if samples != VK_SAMPLE_COUNT_1_BIT:
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91 swapchain.colorImage = device.CreateImage(
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92 width = capabilities.currentExtent.width,
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93 height = capabilities.currentExtent.height,
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94 depth = 4,
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95 samples = samples,
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96 format = surfaceFormat.format,
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97 usage = [VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT],
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98 )
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99 swapchain.colorImageView = swapchain.colorImage.CreateImageView()
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100
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101 if device.vk.vkCreateSwapchainKHR(addr createInfo, nil, addr swapchain.vk) == VK_SUCCESS:
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102
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103 checkVkResult device.vk.vkGetSwapchainImagesKHR(swapchain.vk, addr swapchain.nFramebuffers, nil)
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104 var framebuffers = newSeq[VkImage](swapchain.nFramebuffers)
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105 checkVkResult device.vk.vkGetSwapchainImagesKHR(swapchain.vk, addr swapchain.nFramebuffers, framebuffers.ToCPointer)
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106 for framebuffer in framebuffers:
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107 let framebufferView = VulkanImage(vk: framebuffer, format: surfaceFormat.format, device: device).CreateImageView()
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108 swapchain.framebufferViews.add framebufferView
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109 if samples == VK_SAMPLE_COUNT_1_BIT:
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110 swapchain.framebuffers.add device.CreateFramebuffer(renderPass, [framebufferView], swapchain.dimension)
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111 else:
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112 swapchain.framebuffers.add device.CreateFramebuffer(renderPass, [swapchain.colorImageView, framebufferView], swapchain.dimension)
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113 for i in 0 ..< swapchain.inFlightFrames:
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114 swapchain.queueFinishedFence.add device.CreateFence()
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115 swapchain.imageAvailableSemaphore.add device.CreateSemaphore()
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116 swapchain.renderFinishedSemaphore.add device.CreateSemaphore()
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117 debug &"Created swapchain with: {swapchain.nFramebuffers} framebuffers, {inFlightFrames} in-flight frames, {swapchain.dimension.x}x{swapchain.dimension.y}"
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118 assert device.FirstPresentationQueue().isSome, "No present queue found"
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119 swapchain.presentQueue = device.FirstPresentationQueue().get
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120
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121 result = some(swapchain)
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122 else:
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123 result = none(Swapchain)
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124
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125 proc CurrentFramebuffer*(swapchain: Swapchain): Framebuffer =
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126 assert swapchain.device.vk.Valid
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127 assert swapchain.vk.Valid
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128 swapchain.framebuffers[swapchain.currentFramebufferIndex]
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129
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130 proc AcquireNextFrame*(swapchain: var Swapchain): bool =
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131 assert swapchain.device.vk.Valid
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132 assert swapchain.vk.Valid
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133
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134 swapchain.queueFinishedFence[swapchain.currentInFlight].Await()
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135
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136 let nextImageResult = swapchain.device.vk.vkAcquireNextImageKHR(
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137 swapchain.vk,
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138 high(uint64),
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139 swapchain.imageAvailableSemaphore[swapchain.currentInFlight].vk,
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140 VkFence(0),
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141 addr swapchain.currentFramebufferIndex,
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142 )
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143
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144 swapchain.queueFinishedFence[swapchain.currentInFlight].Reset()
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145
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146 return nextImageResult == VK_SUCCESS
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147
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148 proc Swap*(swapchain: var Swapchain, queue: Queue, commandBuffer: VkCommandBuffer): bool =
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149 assert swapchain.device.vk.Valid
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150 assert swapchain.vk.Valid
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151 assert queue.vk.Valid
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152
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153 var
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154 waitSemaphores = [swapchain.imageAvailableSemaphore[swapchain.currentInFlight].vk]
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155 waitStages = [VkPipelineStageFlags(VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT)]
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156 submitInfo = VkSubmitInfo(
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157 sType: VK_STRUCTURE_TYPE_SUBMIT_INFO,
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158 waitSemaphoreCount: 1,
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159 pWaitSemaphores: waitSemaphores.ToCPointer,
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160 pWaitDstStageMask: waitStages.ToCPointer,
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161 commandBufferCount: 1,
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162 pCommandBuffers: addr commandBuffer,
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163 signalSemaphoreCount: 1,
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164 pSignalSemaphores: addr swapchain.renderFinishedSemaphore[swapchain.currentInFlight].vk,
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165 )
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166 checkVkResult queue.vk.vkQueueSubmit(
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167 submitCount = 1,
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168 pSubmits = addr submitInfo,
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169 fence = swapchain.queueFinishedFence[swapchain.currentInFlight].vk
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170 )
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171
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172 var presentInfo = VkPresentInfoKHR(
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173 sType: VK_STRUCTURE_TYPE_PRESENT_INFO_KHR,
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174 waitSemaphoreCount: 1,
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175 pWaitSemaphores: addr swapchain.renderFinishedSemaphore[swapchain.currentInFlight].vk,
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176 swapchainCount: 1,
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177 pSwapchains: addr swapchain.vk,
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178 pImageIndices: addr swapchain.currentFramebufferIndex,
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179 pResults: nil,
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180 )
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181 let presentResult = vkQueuePresentKHR(swapchain.presentQueue.vk, addr presentInfo)
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182 if presentResult != VK_SUCCESS:
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183 return false
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184
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185 return true
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186
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187
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188 proc Destroy*(swapchain: var Swapchain) =
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189 assert swapchain.vk.Valid
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190
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191 for imageview in swapchain.framebufferViews.mitems:
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192 assert imageview.vk.Valid
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193 imageview.Destroy()
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194 for framebuffer in swapchain.framebuffers.mitems:
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195 assert framebuffer.vk.Valid
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196 framebuffer.Destroy()
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197 if swapchain.colorImage.vk.Valid:
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198 swapchain.colorImage.Destroy()
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199 if swapchain.colorImageView.vk.Valid:
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200 swapchain.colorImageView.Destroy()
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201 for i in 0 ..< swapchain.inFlightFrames:
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202 assert swapchain.queueFinishedFence[i].vk.Valid
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203 assert swapchain.imageAvailableSemaphore[i].vk.Valid
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204 assert swapchain.renderFinishedSemaphore[i].vk.Valid
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205 swapchain.queueFinishedFence[i].Destroy()
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206 swapchain.imageAvailableSemaphore[i].Destroy()
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207 swapchain.renderFinishedSemaphore[i].Destroy()
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208
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209 swapchain.device.vk.vkDestroySwapchainKHR(swapchain.vk, nil)
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210 swapchain.vk.Reset()
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211
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212 proc Recreate*(swapchain: var Swapchain): Option[Swapchain] =
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213 assert swapchain.vk.Valid
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214 assert swapchain.device.vk.Valid
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215 result = CreateSwapchain(
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216 device = swapchain.device,
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217 renderPass = swapchain.renderPass,
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218 surfaceFormat = swapchain.surfaceFormat,
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219 desiredFramebufferCount = swapchain.nFramebuffers,
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220 inFlightFrames = swapchain.inFlightFrames,
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221 oldSwapchain = swapchain.vk,
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222 vSync = swapchain.vSync,
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223 samples = swapchain.samples,
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224 )