Mercurial > games > semicongine
annotate src/zamikongine/engine.nim @ 28:b1b05d4efb52
big refactoring, part1
| author | Sam <sam@basx.dev> |
|---|---|
| date | Sat, 14 Jan 2023 14:08:00 +0700 |
| parents | 71bbe11d8de8 |
| children | 9edca5dc4e93 |
| rev | line source |
|---|---|
| 28 | 1 import std/times |
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2 import std/typetraits |
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3 import std/strformat |
| 0 | 4 import std/enumerate |
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5 import std/logging |
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6 |
| 0 | 7 |
| 8 import ./vulkan | |
| 9 import ./vulkan_helpers | |
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10 import ./window |
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11 import ./events |
| 17 | 12 import ./shader |
| 13 import ./vertex | |
| 18 | 14 import ./buffer |
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15 import ./thing |
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16 import ./mesh |
| 28 | 17 import ./descriptor |
| 0 | 18 |
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19 const MAX_FRAMES_IN_FLIGHT = 2 |
| 10 | 20 const DEBUG_LOG = not defined(release) |
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21 |
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22 var logger = newConsoleLogger() |
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23 addHandler(logger) |
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24 |
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25 |
| 0 | 26 const VULKAN_VERSION = VK_MAKE_API_VERSION(0'u32, 1'u32, 2'u32, 0'u32) |
| 27 | |
| 28 type | |
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29 Device = object |
| 18 | 30 device: VkDevice |
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31 physicalDevice: PhysicalDevice |
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32 graphicsQueueFamily: uint32 |
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33 presentationQueueFamily: uint32 |
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34 graphicsQueue: VkQueue |
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35 presentationQueue: VkQueue |
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36 Swapchain = object |
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37 swapchain: VkSwapchainKHR |
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38 images: seq[VkImage] |
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39 imageviews: seq[VkImageView] |
| 28 | 40 RenderPipeline[T] = object |
| 41 device*: VkDevice | |
| 42 shaders*: seq[ShaderProgram[T]] | |
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43 layout*: VkPipelineLayout |
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44 pipeline*: VkPipeline |
| 28 | 45 uniformLayout*: VkDescriptorSetLayout |
| 46 vertexBuffers*: seq[(seq[Buffer], uint32)] | |
| 47 indexedVertexBuffers*: seq[(seq[Buffer], Buffer, uint32, VkIndexType)] | |
| 48 uniformBuffers*: array[MAX_FRAMES_IN_FLIGHT, Buffer] | |
| 0 | 49 QueueFamily = object |
| 50 properties*: VkQueueFamilyProperties | |
| 51 hasSurfaceSupport*: bool | |
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52 PhysicalDevice = object |
| 0 | 53 device*: VkPhysicalDevice |
| 54 extensions*: seq[string] | |
| 55 properties*: VkPhysicalDeviceProperties | |
| 56 features*: VkPhysicalDeviceFeatures | |
| 57 queueFamilies*: seq[QueueFamily] | |
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58 formats: seq[VkSurfaceFormatKHR] |
| 0 | 59 presentModes: seq[VkPresentModeKHR] |
| 60 Vulkan* = object | |
| 28 | 61 debugMessenger*: VkDebugUtilsMessengerEXT |
| 0 | 62 instance*: VkInstance |
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63 deviceList*: seq[PhysicalDevice] |
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64 device*: Device |
| 0 | 65 surface*: VkSurfaceKHR |
| 28 | 66 surfaceFormat*: VkSurfaceFormatKHR |
| 67 frameDimension*: VkExtent2D | |
| 68 swapchain*: Swapchain | |
| 69 framebuffers*: seq[VkFramebuffer] | |
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70 renderPass*: VkRenderPass |
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71 commandPool*: VkCommandPool |
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72 commandBuffers*: array[MAX_FRAMES_IN_FLIGHT, VkCommandBuffer] |
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73 imageAvailableSemaphores*: array[MAX_FRAMES_IN_FLIGHT, VkSemaphore] |
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74 renderFinishedSemaphores*: array[MAX_FRAMES_IN_FLIGHT, VkSemaphore] |
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75 inFlightFences*: array[MAX_FRAMES_IN_FLIGHT, VkFence] |
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76 Engine* = object |
| 28 | 77 vulkan*: Vulkan |
| 78 window*: NativeWindow | |
| 79 currentscenedata*: ref Thing | |
| 0 | 80 |
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81 proc getAllPhysicalDevices(instance: VkInstance, surface: VkSurfaceKHR): seq[PhysicalDevice] = |
| 0 | 82 for vulkanPhysicalDevice in getVulkanPhysicalDevices(instance): |
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83 var device = PhysicalDevice(device: vulkanPhysicalDevice, extensions: getDeviceExtensions(vulkanPhysicalDevice)) |
| 0 | 84 vkGetPhysicalDeviceProperties(vulkanPhysicalDevice, addr(device.properties)) |
| 85 vkGetPhysicalDeviceFeatures(vulkanPhysicalDevice, addr(device.features)) | |
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86 device.formats = vulkanPhysicalDevice.getDeviceSurfaceFormats(surface) |
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87 device.presentModes = vulkanPhysicalDevice.getDeviceSurfacePresentModes(surface) |
| 0 | 88 |
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89 debug(&"Physical device nr {int(vulkanPhysicalDevice)} {cleanString(device.properties.deviceName)}") |
| 0 | 90 for i, queueFamilyProperty in enumerate(getQueueFamilies(vulkanPhysicalDevice)): |
| 1 | 91 var hasSurfaceSupport: VkBool32 = VK_FALSE |
| 0 | 92 checkVkResult vkGetPhysicalDeviceSurfaceSupportKHR(vulkanPhysicalDevice, uint32(i), surface, addr(hasSurfaceSupport)) |
| 93 device.queueFamilies.add(QueueFamily(properties: queueFamilyProperty, hasSurfaceSupport: bool(hasSurfaceSupport))) | |
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94 debug(&" Queue family {i} {queueFamilyProperty}") |
| 0 | 95 |
| 96 result.add(device) | |
| 97 | |
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98 proc filterForDevice(devices: seq[PhysicalDevice]): seq[(PhysicalDevice, uint32, uint32)] = |
| 0 | 99 for device in devices: |
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100 if not (device.formats.len > 0 and device.presentModes.len > 0 and "VK_KHR_swapchain" in device.extensions): |
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101 continue |
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102 var graphicsQueueFamily = high(uint32) |
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103 var presentationQueueFamily = high(uint32) |
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104 for i, queueFamily in enumerate(device.queueFamilies): |
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105 if queueFamily.hasSurfaceSupport: |
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106 presentationQueueFamily = uint32(i) |
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107 if bool(uint32(queueFamily.properties.queueFlags) and ord(VK_QUEUE_GRAPHICS_BIT)): |
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108 graphicsQueueFamily = uint32(i) |
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109 if graphicsQueueFamily != high(uint32) and presentationQueueFamily != high(uint32): |
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110 result.add((device, graphicsQueueFamily, presentationQueueFamily)) |
| 0 | 111 |
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112 for (device, graphicsQueueFamily, presentationQueueFamily) in result: |
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113 debug(&"Viable device: {cleanString(device.properties.deviceName)} (graphics queue family {graphicsQueueFamily}, presentation queue family {presentationQueueFamily})") |
| 0 | 114 |
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115 |
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116 proc getFrameDimension(window: NativeWindow, device: VkPhysicalDevice, surface: VkSurfaceKHR): VkExtent2D = |
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117 let capabilities = device.getSurfaceCapabilities(surface) |
| 0 | 118 if capabilities.currentExtent.width != high(uint32): |
| 119 return capabilities.currentExtent | |
| 120 else: | |
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121 let (width, height) = window.size() |
| 0 | 122 return VkExtent2D( |
| 123 width: min(max(uint32(width), capabilities.minImageExtent.width), capabilities.maxImageExtent.width), | |
| 124 height: min(max(uint32(height), capabilities.minImageExtent.height), capabilities.maxImageExtent.height), | |
| 125 ) | |
| 126 | |
| 10 | 127 when DEBUG_LOG: |
| 8 | 128 proc setupDebugLog(instance: VkInstance): VkDebugUtilsMessengerEXT = |
| 129 var createInfo = VkDebugUtilsMessengerCreateInfoEXT( | |
| 130 sType: VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT, | |
| 131 messageSeverity: VkDebugUtilsMessageSeverityFlagsEXT( | |
| 132 ord(VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT) or | |
| 133 ord(VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT) or | |
| 134 ord(VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT) | |
| 135 ), | |
| 136 messageType: VkDebugUtilsMessageTypeFlagsEXT( | |
| 137 ord(VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT) or | |
| 138 ord(VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT) or | |
| 139 ord(VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT) | |
| 140 ), | |
| 141 pfnUserCallback: debugCallback, | |
| 142 pUserData: nil, | |
| 143 ) | |
| 144 checkVkResult instance.vkCreateDebugUtilsMessengerEXT(addr(createInfo), nil, addr(result)) | |
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145 |
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146 proc setupVulkanDeviceAndQueues(instance: VkInstance, surface: VkSurfaceKHR): Device = |
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147 let usableDevices = instance.getAllPhysicalDevices(surface).filterForDevice() |
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148 if len(usableDevices) == 0: |
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149 raise newException(Exception, "No suitable graphics device found") |
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150 result.physicalDevice = usableDevices[0][0] |
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151 result.graphicsQueueFamily = usableDevices[0][1] |
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152 result.presentationQueueFamily = usableDevices[0][2] |
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153 |
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154 debug(&"Chose device {cleanString(result.physicalDevice.properties.deviceName)}") |
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155 |
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156 (result.device, result.graphicsQueue, result.presentationQueue) = getVulcanDevice( |
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157 result.physicalDevice.device, |
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158 result.physicalDevice.features, |
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159 result.graphicsQueueFamily, |
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160 result.presentationQueueFamily, |
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161 ) |
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162 |
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163 proc setupSwapChain(device: VkDevice, physicalDevice: PhysicalDevice, surface: VkSurfaceKHR, dimension: VkExtent2D, surfaceFormat: VkSurfaceFormatKHR): Swapchain = |
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164 |
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165 let capabilities = physicalDevice.device.getSurfaceCapabilities(surface) |
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166 var selectedPresentationMode = getPresentMode(physicalDevice.presentModes) |
| 0 | 167 # setup swapchain |
| 168 var swapchainCreateInfo = VkSwapchainCreateInfoKHR( | |
| 169 sType: VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR, | |
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170 surface: surface, |
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171 minImageCount: max(capabilities.minImageCount + 1, capabilities.maxImageCount), |
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172 imageFormat: surfaceFormat.format, |
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173 imageColorSpace: surfaceFormat.colorSpace, |
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174 imageExtent: dimension, |
| 0 | 175 imageArrayLayers: 1, |
| 176 imageUsage: VkImageUsageFlags(VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT), | |
| 177 # VK_SHARING_MODE_CONCURRENT no supported (i.e cannot use different queue families for drawing to swap surface?) | |
| 178 imageSharingMode: VK_SHARING_MODE_EXCLUSIVE, | |
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179 preTransform: capabilities.currentTransform, |
| 0 | 180 compositeAlpha: VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR, |
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181 presentMode: selectedPresentationMode, |
| 1 | 182 clipped: VK_TRUE, |
| 0 | 183 oldSwapchain: VkSwapchainKHR(0), |
| 184 ) | |
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185 checkVkResult device.vkCreateSwapchainKHR(addr(swapchainCreateInfo), nil, addr(result.swapchain)) |
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186 result.images = device.getSwapChainImages(result.swapchain) |
| 0 | 187 |
| 188 # setup swapchian image views | |
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189 |
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190 result.imageviews = newSeq[VkImageView](result.images.len) |
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191 for i, image in enumerate(result.images): |
| 0 | 192 var imageViewCreateInfo = VkImageViewCreateInfo( |
| 193 sType: VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO, | |
| 194 image: image, | |
| 195 viewType: VK_IMAGE_VIEW_TYPE_2D, | |
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196 format: surfaceFormat.format, |
| 0 | 197 components: VkComponentMapping( |
| 198 r: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 199 g: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 200 b: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 201 a: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 202 ), | |
| 203 subresourceRange: VkImageSubresourceRange( | |
| 204 aspectMask: VkImageAspectFlags(VK_IMAGE_ASPECT_COLOR_BIT), | |
| 205 baseMipLevel: 0, | |
| 206 levelCount: 1, | |
| 207 baseArrayLayer: 0, | |
| 208 layerCount: 1, | |
| 209 ), | |
| 210 ) | |
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211 checkVkResult device.vkCreateImageView(addr(imageViewCreateInfo), nil, addr(result.imageviews[i])) |
| 1 | 212 |
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213 proc setupRenderPass(device: VkDevice, format: VkFormat): VkRenderPass = |
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214 var |
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215 colorAttachment = VkAttachmentDescription( |
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216 format: format, |
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217 samples: VK_SAMPLE_COUNT_1_BIT, |
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218 loadOp: VK_ATTACHMENT_LOAD_OP_CLEAR, |
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219 storeOp: VK_ATTACHMENT_STORE_OP_STORE, |
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220 stencilLoadOp: VK_ATTACHMENT_LOAD_OP_DONT_CARE, |
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221 stencilStoreOp: VK_ATTACHMENT_STORE_OP_DONT_CARE, |
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222 initialLayout: VK_IMAGE_LAYOUT_UNDEFINED, |
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223 finalLayout: VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, |
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224 ) |
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225 colorAttachmentRef = VkAttachmentReference( |
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226 attachment: 0, |
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227 layout: VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, |
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228 ) |
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229 subpass = VkSubpassDescription( |
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230 pipelineBindPoint: VK_PIPELINE_BIND_POINT_GRAPHICS, |
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231 colorAttachmentCount: 1, |
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232 pColorAttachments: addr(colorAttachmentRef) |
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233 ) |
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234 dependency = VkSubpassDependency( |
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235 srcSubpass: VK_SUBPASS_EXTERNAL, |
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236 dstSubpass: 0, |
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237 srcStageMask: VkPipelineStageFlags(VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT), |
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238 srcAccessMask: VkAccessFlags(0), |
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239 dstStageMask: VkPipelineStageFlags(VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT), |
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240 dstAccessMask: VkAccessFlags(VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT), |
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241 ) |
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242 renderPassCreateInfo = VkRenderPassCreateInfo( |
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243 sType: VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO, |
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244 attachmentCount: 1, |
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245 pAttachments: addr(colorAttachment), |
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246 subpassCount: 1, |
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247 pSubpasses: addr(subpass), |
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248 dependencyCount: 1, |
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249 pDependencies: addr(dependency), |
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250 ) |
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251 checkVkResult device.vkCreateRenderPass(addr(renderPassCreateInfo), nil, addr(result)) |
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252 |
| 28 | 253 proc initRenderPipeline[VertextType, T](device: VkDevice, frameDimension: VkExtent2D, renderPass: VkRenderPass, vertexShader, fragmentShader: static string): RenderPipeline[T] = |
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254 # load shaders |
| 28 | 255 result.device = device |
| 256 result.shaders.add(initShaderProgram[T](device, VK_SHADER_STAGE_VERTEX_BIT, vertexShader)) | |
| 257 result.shaders.add(initShaderProgram[T](device, VK_SHADER_STAGE_FRAGMENT_BIT, fragmentShader)) | |
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258 |
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259 var |
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260 # define which parts can be dynamic (pipeline is fixed after setup) |
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261 dynamicStates = [VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR] |
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262 dynamicState = VkPipelineDynamicStateCreateInfo( |
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263 sType: VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO, |
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264 dynamicStateCount: uint32(dynamicStates.len), |
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265 pDynamicStates: addr(dynamicStates[0]), |
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266 ) |
| 28 | 267 vertexbindings = generateInputVertexBinding[VertextType]() |
| 268 attributebindings = generateInputAttributeBinding[VertextType]() | |
| 17 | 269 |
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270 # define input data format |
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271 vertexInputInfo = VkPipelineVertexInputStateCreateInfo( |
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272 sType: VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO, |
| 17 | 273 vertexBindingDescriptionCount: uint32(vertexbindings.len), |
| 274 pVertexBindingDescriptions: addr(vertexbindings[0]), | |
| 275 vertexAttributeDescriptionCount: uint32(attributebindings.len), | |
| 276 pVertexAttributeDescriptions: addr(attributebindings[0]), | |
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277 ) |
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278 inputAssembly = VkPipelineInputAssemblyStateCreateInfo( |
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279 sType: VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO, |
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280 topology: VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, |
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281 primitiveRestartEnable: VK_FALSE, |
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282 ) |
| 1 | 283 |
| 284 # setup viewport | |
|
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285 var viewportState = VkPipelineViewportStateCreateInfo( |
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286 sType: VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO, |
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287 viewportCount: 1, |
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288 scissorCount: 1, |
| 1 | 289 ) |
| 0 | 290 |
|
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291 # rasterizerization config |
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292 var |
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293 rasterizer = VkPipelineRasterizationStateCreateInfo( |
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294 sType: VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO, |
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295 depthClampEnable: VK_FALSE, |
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296 rasterizerDiscardEnable: VK_FALSE, |
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297 polygonMode: VK_POLYGON_MODE_FILL, |
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298 lineWidth: 1.0, |
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299 cullMode: VkCullModeFlags(VK_CULL_MODE_BACK_BIT), |
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300 frontFace: VK_FRONT_FACE_CLOCKWISE, |
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301 depthBiasEnable: VK_FALSE, |
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302 depthBiasConstantFactor: 0.0, |
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303 depthBiasClamp: 0.0, |
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304 depthBiasSlopeFactor: 0.0, |
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305 ) |
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306 multisampling = VkPipelineMultisampleStateCreateInfo( |
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307 sType: VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO, |
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308 sampleShadingEnable: VK_FALSE, |
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309 rasterizationSamples: VK_SAMPLE_COUNT_1_BIT, |
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310 minSampleShading: 1.0, |
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311 pSampleMask: nil, |
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312 alphaToCoverageEnable: VK_FALSE, |
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313 alphaToOneEnable: VK_FALSE, |
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314 ) |
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315 colorBlendAttachment = VkPipelineColorBlendAttachmentState( |
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316 colorWriteMask: VkColorComponentFlags( |
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317 ord(VK_COLOR_COMPONENT_R_BIT) or |
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318 ord(VK_COLOR_COMPONENT_G_BIT) or |
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319 ord(VK_COLOR_COMPONENT_B_BIT) or |
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320 ord(VK_COLOR_COMPONENT_A_BIT) |
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321 ), |
|
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322 blendEnable: VK_TRUE, |
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323 srcColorBlendFactor: VK_BLEND_FACTOR_SRC_ALPHA, |
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324 dstColorBlendFactor: VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA, |
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325 colorBlendOp: VK_BLEND_OP_ADD, |
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326 srcAlphaBlendFactor: VK_BLEND_FACTOR_ONE, |
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327 dstAlphaBlendFactor: VK_BLEND_FACTOR_ZERO, |
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328 alphaBlendOp: VK_BLEND_OP_ADD, |
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329 ) |
|
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330 colorBlending = VkPipelineColorBlendStateCreateInfo( |
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331 sType: VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO, |
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332 logicOpEnable: VK_TRUE, |
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333 logicOp: VK_LOGIC_OP_COPY, |
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334 attachmentCount: 1, |
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335 pAttachments: addr(colorBlendAttachment), |
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336 blendConstants: [0.0'f, 0.0'f, 0.0'f, 0.0'f], |
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337 ) |
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338 |
| 28 | 339 result.uniformLayout = device.createUniformDescriptorLayout(VkShaderStageFlags(VK_SHADER_STAGE_VERTEX_BIT), 0) |
| 340 var | |
| 341 # "globals" that go into the shader, uniforms etc. | |
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342 pipelineLayoutInfo = VkPipelineLayoutCreateInfo( |
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343 sType: VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO, |
| 28 | 344 setLayoutCount: 1, |
| 345 pSetLayouts: addr(result.uniformLayout), | |
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346 pushConstantRangeCount: 0, |
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347 pPushConstantRanges: nil, |
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348 ) |
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349 checkVkResult vkCreatePipelineLayout(device, addr(pipelineLayoutInfo), nil, addr(result.layout)) |
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350 |
| 17 | 351 var stages: seq[VkPipelineShaderStageCreateInfo] |
| 352 for shader in result.shaders: | |
| 353 stages.add(shader.shader) | |
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354 var pipelineInfo = VkGraphicsPipelineCreateInfo( |
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355 sType: VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO, |
| 17 | 356 stageCount: uint32(stages.len), |
| 357 pStages: addr(stages[0]), | |
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358 pVertexInputState: addr(vertexInputInfo), |
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359 pInputAssemblyState: addr(inputAssembly), |
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360 pViewportState: addr(viewportState), |
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361 pRasterizationState: addr(rasterizer), |
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362 pMultisampleState: addr(multisampling), |
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363 pDepthStencilState: nil, |
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364 pColorBlendState: addr(colorBlending), |
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365 pDynamicState: addr(dynamicState), |
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366 layout: result.layout, |
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367 renderPass: renderPass, |
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368 subpass: 0, |
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369 basePipelineHandle: VkPipeline(0), |
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370 basePipelineIndex: -1, |
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371 ) |
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372 checkVkResult vkCreateGraphicsPipelines( |
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373 device, |
|
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374 VkPipelineCache(0), |
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375 1, |
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376 addr(pipelineInfo), |
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377 nil, |
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378 addr(result.pipeline) |
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379 ) |
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380 |
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381 proc setupFramebuffers(device: VkDevice, swapchain: var Swapchain, renderPass: VkRenderPass, dimension: VkExtent2D): seq[VkFramebuffer] = |
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382 result = newSeq[VkFramebuffer](swapchain.images.len) |
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383 for i, imageview in enumerate(swapchain.imageviews): |
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384 var framebufferInfo = VkFramebufferCreateInfo( |
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385 sType: VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO, |
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386 renderPass: renderPass, |
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387 attachmentCount: 1, |
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388 pAttachments: addr(swapchain.imageviews[i]), |
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389 width: dimension.width, |
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390 height: dimension.height, |
|
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391 layers: 1, |
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392 ) |
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393 checkVkResult device.vkCreateFramebuffer(addr(framebufferInfo), nil, addr(result[i])) |
|
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394 |
|
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395 proc trash(device: VkDevice, swapchain: Swapchain, framebuffers: seq[VkFramebuffer]) = |
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396 for framebuffer in framebuffers: |
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397 device.vkDestroyFramebuffer(framebuffer, nil) |
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398 for imageview in swapchain.imageviews: |
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399 device.vkDestroyImageView(imageview, nil) |
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400 device.vkDestroySwapchainKHR(swapchain.swapchain, nil) |
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401 |
|
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402 proc recreateSwapchain(vulkan: Vulkan): (Swapchain, seq[VkFramebuffer]) = |
|
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403 debug(&"Recreate swapchain with dimension {vulkan.frameDimension}") |
|
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404 checkVkResult vulkan.device.device.vkDeviceWaitIdle() |
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405 |
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406 vulkan.device.device.trash(vulkan.swapchain, vulkan.framebuffers) |
|
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407 |
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408 result[0] = vulkan.device.device.setupSwapChain( |
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409 vulkan.device.physicalDevice, |
|
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|
410 vulkan.surface, |
|
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411 vulkan.frameDimension, |
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|
412 vulkan.surfaceFormat |
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|
413 ) |
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|
414 result[1] = vulkan.device.device.setupFramebuffers( |
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415 result[0], |
|
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416 vulkan.renderPass, |
|
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|
417 vulkan.frameDimension |
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418 ) |
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419 |
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420 |
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421 proc setupCommandBuffers(device: VkDevice, graphicsQueueFamily: uint32): (VkCommandPool, array[MAX_FRAMES_IN_FLIGHT, VkCommandBuffer]) = |
|
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422 # set up command buffer |
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423 var poolInfo = VkCommandPoolCreateInfo( |
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424 sType: VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO, |
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425 flags: VkCommandPoolCreateFlags(VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT), |
|
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426 queueFamilyIndex: graphicsQueueFamily, |
|
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427 ) |
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428 checkVkResult device.vkCreateCommandPool(addr(poolInfo), nil, addr(result[0])) |
|
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429 |
|
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430 var allocInfo = VkCommandBufferAllocateInfo( |
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431 sType: VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, |
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432 commandPool: result[0], |
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433 level: VK_COMMAND_BUFFER_LEVEL_PRIMARY, |
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434 commandBufferCount: result[1].len.uint32, |
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435 ) |
|
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436 checkVkResult device.vkAllocateCommandBuffers(addr(allocInfo), addr(result[1][0])) |
|
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437 |
|
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438 proc setupSyncPrimitives(device: VkDevice): ( |
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439 array[MAX_FRAMES_IN_FLIGHT, VkSemaphore], |
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440 array[MAX_FRAMES_IN_FLIGHT, VkSemaphore], |
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441 array[MAX_FRAMES_IN_FLIGHT, VkFence], |
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442 ) = |
|
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443 var semaphoreInfo = VkSemaphoreCreateInfo(sType: VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO) |
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444 var fenceInfo = VkFenceCreateInfo( |
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445 sType: VK_STRUCTURE_TYPE_FENCE_CREATE_INFO, |
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446 flags: VkFenceCreateFlags(VK_FENCE_CREATE_SIGNALED_BIT) |
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447 ) |
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448 for i in 0 ..< MAX_FRAMES_IN_FLIGHT: |
|
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449 checkVkResult device.vkCreateSemaphore(addr(semaphoreInfo), nil, addr(result[0][i])) |
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450 checkVkResult device.vkCreateSemaphore(addr(semaphoreInfo), nil, addr(result[1][i])) |
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451 checkVkResult device.vkCreateFence(addr(fenceInfo), nil, addr(result[2][i])) |
|
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|
452 |
| 28 | 453 proc igniteEngine*(windowTitle: string): Engine = |
|
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454 |
| 28 | 455 result.window = createWindow(windowTitle) |
|
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456 |
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457 # setup vulkan functions |
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458 vkLoad1_0() |
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459 vkLoad1_1() |
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460 vkLoad1_2() |
| 10 | 461 |
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462 # create vulkan instance |
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463 result.vulkan.instance = createVulkanInstance(VULKAN_VERSION) |
| 10 | 464 when DEBUG_LOG: |
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465 result.vulkan.debugMessenger = result.vulkan.instance.setupDebugLog() |
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466 result.vulkan.surface = result.vulkan.instance.createVulkanSurface(result.window) |
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467 result.vulkan.device = result.vulkan.instance.setupVulkanDeviceAndQueues(result.vulkan.surface) |
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468 |
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469 # get basic frame information |
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470 result.vulkan.surfaceFormat = result.vulkan.device.physicalDevice.formats.getSuitableSurfaceFormat() |
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471 result.vulkan.frameDimension = result.window.getFrameDimension(result.vulkan.device.physicalDevice.device, result.vulkan.surface) |
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472 |
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473 # setup swapchain and render pipeline |
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474 result.vulkan.swapchain = result.vulkan.device.device.setupSwapChain( |
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475 result.vulkan.device.physicalDevice, |
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476 result.vulkan.surface, |
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477 result.vulkan.frameDimension, |
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478 result.vulkan.surfaceFormat |
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479 ) |
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480 result.vulkan.renderPass = result.vulkan.device.device.setupRenderPass(result.vulkan.surfaceFormat.format) |
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481 result.vulkan.framebuffers = result.vulkan.device.device.setupFramebuffers( |
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482 result.vulkan.swapchain, |
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483 result.vulkan.renderPass, |
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484 result.vulkan.frameDimension |
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485 ) |
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486 ( |
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487 result.vulkan.commandPool, |
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488 result.vulkan.commandBuffers, |
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489 ) = result.vulkan.device.device.setupCommandBuffers(result.vulkan.device.graphicsQueueFamily) |
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490 |
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491 ( |
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492 result.vulkan.imageAvailableSemaphores, |
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493 result.vulkan.renderFinishedSemaphores, |
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494 result.vulkan.inFlightFences, |
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495 ) = result.vulkan.device.device.setupSyncPrimitives() |
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496 |
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497 |
| 28 | 498 proc setupPipeline*[VertexType, UniformType, T: object, IndexType: uint16|uint32](engine: var Engine, scenedata: ref Thing, vertexShader, fragmentShader: static string): RenderPipeline[T] = |
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499 engine.currentscenedata = scenedata |
| 28 | 500 result = initRenderPipeline[VertexType, T]( |
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501 engine.vulkan.device.device, |
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502 engine.vulkan.frameDimension, |
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503 engine.vulkan.renderPass, |
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504 vertexShader, |
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505 fragmentShader, |
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506 ) |
| 28 | 507 # vertex buffers |
| 508 var allmeshes: seq[Mesh[VertexType]] | |
| 509 for mesh in partsOfType[ref Mesh[VertexType]](engine.currentscenedata): | |
| 20 | 510 allmeshes.add(mesh[]) |
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511 if allmeshes.len > 0: |
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512 var ubermesh = createUberMesh(allmeshes) |
| 28 | 513 result.vertexBuffers.add createVertexBuffers(ubermesh, engine.vulkan.device.device, engine.vulkan.device.physicalDevice.device, engine.vulkan.commandPool, engine.vulkan.device.graphicsQueue) |
| 20 | 514 |
| 28 | 515 # vertex buffers with indexes |
| 516 var allindexedmeshes: seq[IndexedMesh[VertexType, IndexType]] | |
| 517 for mesh in partsOfType[ref IndexedMesh[VertexType, IndexType]](engine.currentscenedata): | |
| 20 | 518 allindexedmeshes.add(mesh[]) |
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519 if allindexedmeshes.len > 0: |
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520 var indexedubermesh = createUberMesh(allindexedmeshes) |
| 28 | 521 result.indexedVertexBuffers.add createIndexedVertexBuffers(indexedubermesh, engine.vulkan.device.device, engine.vulkan.device.physicalDevice.device, engine.vulkan.commandPool, engine.vulkan.device.graphicsQueue) |
| 522 | |
| 523 # uniform buffers | |
| 524 result.uniformBuffers = createUniformBuffers[MAX_FRAMES_IN_FLIGHT, UniformType]( | |
| 525 engine.vulkan.device.device, | |
| 526 engine.vulkan.device.physicalDevice.device | |
| 527 ) | |
| 528 | |
| 529 | |
| 530 proc runPipeline(commandBuffer: VkCommandBuffer, pipeline: RenderPipeline) = | |
| 531 vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline.pipeline) | |
| 0 | 532 |
| 28 | 533 for (vertexBufferSet, vertexCount) in pipeline.vertexBuffers: |
| 534 var | |
| 535 vertexBuffers: seq[VkBuffer] | |
| 536 offsets: seq[VkDeviceSize] | |
| 537 for buffer in vertexBufferSet: | |
| 538 vertexBuffers.add buffer.vkBuffer | |
| 539 offsets.add VkDeviceSize(0) | |
| 540 | |
| 541 vkCmdBindVertexBuffers(commandBuffer, firstBinding=0'u32, bindingCount=2'u32, pBuffers=addr(vertexBuffers[0]), pOffsets=addr(offsets[0])) | |
| 542 vkCmdDraw(commandBuffer, vertexCount=vertexCount, instanceCount=1'u32, firstVertex=0'u32, firstInstance=0'u32) | |
| 543 | |
| 544 for (vertexBufferSet, indexBuffer, indicesCount, indexType) in pipeline.indexedVertexBuffers: | |
| 545 var | |
| 546 vertexBuffers: seq[VkBuffer] | |
| 547 offsets: seq[VkDeviceSize] | |
| 548 for buffer in vertexBufferSet: | |
| 549 vertexBuffers.add buffer.vkBuffer | |
| 550 offsets.add VkDeviceSize(0) | |
| 551 | |
| 552 vkCmdBindVertexBuffers(commandBuffer, firstBinding=0'u32, bindingCount=2'u32, pBuffers=addr(vertexBuffers[0]), pOffsets=addr(offsets[0])) | |
| 553 vkCmdBindIndexBuffer(commandBuffer, indexBuffer.vkBuffer, VkDeviceSize(0), indexType); | |
| 554 vkCmdDrawIndexed(commandBuffer, indicesCount, 1, 0, 0, 0); | |
| 555 | |
| 556 proc recordCommandBuffer(renderPass: VkRenderPass, pipeline: RenderPipeline, commandBuffer: VkCommandBuffer, framebuffer: VkFramebuffer, frameDimension: VkExtent2D) = | |
|
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557 var |
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558 beginInfo = VkCommandBufferBeginInfo( |
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559 sType: VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, |
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560 pInheritanceInfo: nil, |
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561 ) |
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562 clearColor = VkClearValue(color: VkClearColorValue(float32: [0.2'f, 0.2'f, 0.2'f, 1.0'f])) |
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563 renderPassInfo = VkRenderPassBeginInfo( |
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564 sType: VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO, |
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565 renderPass: renderPass, |
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566 framebuffer: framebuffer, |
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567 renderArea: VkRect2D( |
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568 offset: VkOffset2D(x: 0, y: 0), |
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569 extent: frameDimension, |
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570 ), |
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571 clearValueCount: 1, |
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572 pClearValues: addr(clearColor), |
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573 ) |
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574 viewport = VkViewport( |
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575 x: 0.0, |
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576 y: 0.0, |
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577 width: (float) frameDimension.width, |
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578 height: (float) frameDimension.height, |
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579 minDepth: 0.0, |
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580 maxDepth: 1.0, |
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581 ) |
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582 scissor = VkRect2D( |
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583 offset: VkOffset2D(x: 0, y: 0), |
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584 extent: frameDimension |
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585 ) |
| 28 | 586 checkVkResult vkBeginCommandBuffer(commandBuffer, addr(beginInfo)) |
| 587 block: | |
| 588 vkCmdBeginRenderPass(commandBuffer, addr(renderPassInfo), VK_SUBPASS_CONTENTS_INLINE) | |
| 589 vkCmdSetViewport(commandBuffer, firstViewport=0, viewportCount=1, addr(viewport)) | |
| 590 vkCmdSetScissor(commandBuffer, firstScissor=0, scissorCount=1, addr(scissor)) | |
| 591 runPipeline(commandBuffer, pipeline) | |
| 592 vkCmdEndRenderPass(commandBuffer) | |
| 593 checkVkResult vkEndCommandBuffer(commandBuffer) | |
|
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594 |
| 28 | 595 proc drawFrame(window: NativeWindow, vulkan: var Vulkan, currentFrame: int, resized: bool, pipeline: RenderPipeline) = |
| 596 checkVkResult vkWaitForFences(vulkan.device.device, 1, addr(vulkan.inFlightFences[currentFrame]), VK_TRUE, high(uint64)) | |
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597 var bufferImageIndex: uint32 |
| 28 | 598 let nextImageResult = vkAcquireNextImageKHR( |
| 599 vulkan.device.device, | |
|
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600 vulkan.swapchain.swapchain, |
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601 high(uint64), |
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602 vulkan.imageAvailableSemaphores[currentFrame], |
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603 VkFence(0), |
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604 addr(bufferImageIndex) |
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605 ) |
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606 if nextImageResult == VK_ERROR_OUT_OF_DATE_KHR: |
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607 vulkan.frameDimension = window.getFrameDimension(vulkan.device.physicalDevice.device, vulkan.surface) |
|
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608 (vulkan.swapchain, vulkan.framebuffers) = vulkan.recreateSwapchain() |
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609 elif not (nextImageResult in [VK_SUCCESS, VK_SUBOPTIMAL_KHR]): |
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610 raise newException(Exception, "Vulkan error: vkAcquireNextImageKHR returned " & $nextImageResult) |
| 28 | 611 checkVkResult vkResetFences(vulkan.device.device, 1, addr(vulkan.inFlightFences[currentFrame])) |
|
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612 |
| 28 | 613 checkVkResult vkResetCommandBuffer(vulkan.commandBuffers[currentFrame], VkCommandBufferResetFlags(0)) |
| 614 vulkan.renderPass.recordCommandBuffer(pipeline, vulkan.commandBuffers[currentFrame], vulkan.framebuffers[bufferImageIndex], vulkan.frameDimension) | |
|
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615 var |
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616 waitSemaphores = [vulkan.imageAvailableSemaphores[currentFrame]] |
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617 waitStages = [VkPipelineStageFlags(VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT)] |
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618 signalSemaphores = [vulkan.renderFinishedSemaphores[currentFrame]] |
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619 submitInfo = VkSubmitInfo( |
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620 sType: VK_STRUCTURE_TYPE_SUBMIT_INFO, |
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621 waitSemaphoreCount: 1, |
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622 pWaitSemaphores: addr(waitSemaphores[0]), |
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623 pWaitDstStageMask: addr(waitStages[0]), |
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624 commandBufferCount: 1, |
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625 pCommandBuffers: addr(vulkan.commandBuffers[currentFrame]), |
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626 signalSemaphoreCount: 1, |
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627 pSignalSemaphores: addr(signalSemaphores[0]), |
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628 ) |
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629 checkVkResult vkQueueSubmit(vulkan.device.graphicsQueue, 1, addr(submitInfo), vulkan.inFlightFences[currentFrame]) |
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630 |
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631 var presentInfo = VkPresentInfoKHR( |
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632 sType: VK_STRUCTURE_TYPE_PRESENT_INFO_KHR, |
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633 waitSemaphoreCount: 1, |
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634 pWaitSemaphores: addr(signalSemaphores[0]), |
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635 swapchainCount: 1, |
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636 pSwapchains: addr(vulkan.swapchain.swapchain), |
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637 pImageIndices: addr(bufferImageIndex), |
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638 pResults: nil, |
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639 ) |
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640 let presentResult = vkQueuePresentKHR(vulkan.device.presentationQueue, addr(presentInfo)) |
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641 |
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642 if presentResult == VK_ERROR_OUT_OF_DATE_KHR or presentResult == VK_SUBOPTIMAL_KHR or resized: |
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643 vulkan.frameDimension = window.getFrameDimension(vulkan.device.physicalDevice.device, vulkan.surface) |
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644 (vulkan.swapchain, vulkan.framebuffers) = vulkan.recreateSwapchain() |
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645 |
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646 |
| 28 | 647 proc run*(engine: var Engine, pipeline: RenderPipeline, globalUpdate: proc(engine: var Engine, dt: Duration)) = |
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648 var |
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649 killed = false |
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650 currentFrame = 0 |
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651 resized = false |
| 28 | 652 lastUpdate = getTime() |
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653 |
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654 while not killed: |
| 28 | 655 |
| 656 # process input | |
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657 for event in engine.window.pendingEvents(): |
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658 case event.eventType: |
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659 of Quit: |
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660 killed = true |
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661 of ResizedWindow: |
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662 resized = true |
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663 of KeyDown: |
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664 echo event |
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665 if event.key == Escape: |
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666 killed = true |
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667 else: |
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668 discard |
| 28 | 669 |
| 670 # game logic update | |
| 671 let | |
| 672 now = getTime() | |
| 673 dt = now - lastUpdate | |
| 674 lastUpdate = now | |
| 675 engine.globalUpdate(dt) | |
| 676 for entity in allEntities(engine.currentscenedata): | |
| 677 entity.update(dt) | |
| 678 | |
| 679 # submit frame for drawing | |
| 680 engine.window.drawFrame(engine.vulkan, currentFrame, resized, pipeline) | |
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681 resized = false |
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682 currentFrame = (currentFrame + 1) mod MAX_FRAMES_IN_FLIGHT; |
| 28 | 683 checkVkResult vkDeviceWaitIdle(engine.vulkan.device.device) |
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684 |
| 28 | 685 proc trash*(pipeline: var RenderPipeline) = |
| 686 vkDestroyDescriptorSetLayout(pipeline.device, pipeline.uniformLayout, nil); | |
| 687 vkDestroyPipeline(pipeline.device, pipeline.pipeline, nil) | |
| 688 vkDestroyPipelineLayout(pipeline.device, pipeline.layout, nil) | |
| 689 for shader in pipeline.shaders: | |
| 690 vkDestroyShaderModule(pipeline.device, shader.shader.module, nil) | |
| 691 | |
| 692 for (bufferset, cnt) in pipeline.vertexBuffers.mitems: | |
|
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693 for buffer in bufferset.mitems: |
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694 buffer.trash() |
| 28 | 695 for (bufferset, indexbuffer, cnt, t) in pipeline.indexedVertexBuffers.mitems: |
|
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696 indexbuffer.trash() |
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|
697 for buffer in bufferset.mitems: |
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|
698 buffer.trash() |
| 28 | 699 for buffer in pipeline.uniformBuffers.mitems: |
| 700 buffer.trash() | |
| 701 | |
| 702 proc trash*(engine: var Engine) = | |
| 703 checkVkResult vkDeviceWaitIdle(engine.vulkan.device.device) | |
|
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704 engine.vulkan.device.device.trash(engine.vulkan.swapchain, engine.vulkan.framebuffers) |
| 0 | 705 |
|
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|
706 for i in 0 ..< MAX_FRAMES_IN_FLIGHT: |
|
4
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707 engine.vulkan.device.device.vkDestroySemaphore(engine.vulkan.imageAvailableSemaphores[i], nil) |
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|
708 engine.vulkan.device.device.vkDestroySemaphore(engine.vulkan.renderFinishedSemaphores[i], nil) |
|
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|
709 engine.vulkan.device.device.vkDestroyFence(engine.vulkan.inFlightFences[i], nil) |
|
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|
710 |
| 28 | 711 engine.vulkan.device.device.vkDestroyRenderPass(engine.vulkan.renderPass, nil) |
|
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|
712 engine.vulkan.device.device.vkDestroyCommandPool(engine.vulkan.commandPool, nil) |
|
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|
713 |
|
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|
714 engine.vulkan.instance.vkDestroySurfaceKHR(engine.vulkan.surface, nil) |
|
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|
715 engine.vulkan.device.device.vkDestroyDevice(nil) |
| 10 | 716 when DEBUG_LOG: |
|
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|
717 engine.vulkan.instance.vkDestroyDebugUtilsMessengerEXT(engine.vulkan.debugMessenger, nil) |
| 9 | 718 engine.window.trash() |
| 28 | 719 engine.vulkan.instance.vkDestroyInstance(nil) # needs to happen after window is trashed as the driver might have a hook registered for the window destruction |