Mercurial > games > semicongine
annotate src/zamikongine/engine.nim @ 33:94c38e4b5782
did: refactoring, move more from make to nimscript
| author | Sam <sam@basx.dev> |
|---|---|
| date | Sun, 15 Jan 2023 23:23:54 +0700 |
| parents | 9edca5dc4e93 |
| children | c3c963e7c1a6 |
| 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) |
| 32 | 27 const ENGINE_NAME = "zamkongine" |
| 28 const ENGINE_VERSION = "0.1" | |
| 29 const BUILD_VERSION = ENGINE_VERSION & '-' & gorge("git log -1 --format=format:'%H'") | |
| 30 echo "Engine: " & ENGINE_NAME & " " & BUILD_VERSION | |
| 0 | 31 |
| 32 type | |
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33 Device = object |
| 18 | 34 device: VkDevice |
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35 physicalDevice: PhysicalDevice |
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36 graphicsQueueFamily: uint32 |
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37 presentationQueueFamily: uint32 |
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38 graphicsQueue: VkQueue |
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39 presentationQueue: VkQueue |
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40 Swapchain = object |
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41 swapchain: VkSwapchainKHR |
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42 images: seq[VkImage] |
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43 imageviews: seq[VkImageView] |
| 32 | 44 RenderPipeline*[VertexType, Uniforms] = object |
| 28 | 45 device*: VkDevice |
| 32 | 46 shaders*: seq[ShaderProgram[VertexType, Uniforms]] |
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47 layout*: VkPipelineLayout |
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48 pipeline*: VkPipeline |
| 28 | 49 vertexBuffers*: seq[(seq[Buffer], uint32)] |
| 50 indexedVertexBuffers*: seq[(seq[Buffer], Buffer, uint32, VkIndexType)] | |
| 32 | 51 descriptorSetLayout*: VkDescriptorSetLayout |
| 28 | 52 uniformBuffers*: array[MAX_FRAMES_IN_FLIGHT, Buffer] |
| 32 | 53 descriptorPool*: VkDescriptorPool |
| 54 descriptors: array[MAX_FRAMES_IN_FLIGHT, VkDescriptorSet] | |
| 0 | 55 QueueFamily = object |
| 56 properties*: VkQueueFamilyProperties | |
| 57 hasSurfaceSupport*: bool | |
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58 PhysicalDevice = object |
| 0 | 59 device*: VkPhysicalDevice |
| 60 extensions*: seq[string] | |
| 61 properties*: VkPhysicalDeviceProperties | |
| 62 features*: VkPhysicalDeviceFeatures | |
| 63 queueFamilies*: seq[QueueFamily] | |
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64 formats: seq[VkSurfaceFormatKHR] |
| 0 | 65 presentModes: seq[VkPresentModeKHR] |
| 66 Vulkan* = object | |
| 28 | 67 debugMessenger*: VkDebugUtilsMessengerEXT |
| 0 | 68 instance*: VkInstance |
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69 deviceList*: seq[PhysicalDevice] |
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70 device*: Device |
| 0 | 71 surface*: VkSurfaceKHR |
| 28 | 72 surfaceFormat*: VkSurfaceFormatKHR |
| 73 frameDimension*: VkExtent2D | |
| 74 swapchain*: Swapchain | |
| 75 framebuffers*: seq[VkFramebuffer] | |
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76 renderPass*: VkRenderPass |
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77 commandPool*: VkCommandPool |
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78 commandBuffers*: array[MAX_FRAMES_IN_FLIGHT, VkCommandBuffer] |
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79 imageAvailableSemaphores*: array[MAX_FRAMES_IN_FLIGHT, VkSemaphore] |
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80 renderFinishedSemaphores*: array[MAX_FRAMES_IN_FLIGHT, VkSemaphore] |
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81 inFlightFences*: array[MAX_FRAMES_IN_FLIGHT, VkFence] |
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82 Engine* = object |
| 28 | 83 vulkan*: Vulkan |
| 84 window*: NativeWindow | |
| 85 currentscenedata*: ref Thing | |
| 0 | 86 |
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87 proc getAllPhysicalDevices(instance: VkInstance, surface: VkSurfaceKHR): seq[PhysicalDevice] = |
| 0 | 88 for vulkanPhysicalDevice in getVulkanPhysicalDevices(instance): |
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89 var device = PhysicalDevice(device: vulkanPhysicalDevice, extensions: getDeviceExtensions(vulkanPhysicalDevice)) |
| 0 | 90 vkGetPhysicalDeviceProperties(vulkanPhysicalDevice, addr(device.properties)) |
| 91 vkGetPhysicalDeviceFeatures(vulkanPhysicalDevice, addr(device.features)) | |
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92 device.formats = vulkanPhysicalDevice.getDeviceSurfaceFormats(surface) |
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93 device.presentModes = vulkanPhysicalDevice.getDeviceSurfacePresentModes(surface) |
| 0 | 94 |
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95 debug(&"Physical device nr {int(vulkanPhysicalDevice)} {cleanString(device.properties.deviceName)}") |
| 0 | 96 for i, queueFamilyProperty in enumerate(getQueueFamilies(vulkanPhysicalDevice)): |
| 1 | 97 var hasSurfaceSupport: VkBool32 = VK_FALSE |
| 0 | 98 checkVkResult vkGetPhysicalDeviceSurfaceSupportKHR(vulkanPhysicalDevice, uint32(i), surface, addr(hasSurfaceSupport)) |
| 99 device.queueFamilies.add(QueueFamily(properties: queueFamilyProperty, hasSurfaceSupport: bool(hasSurfaceSupport))) | |
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100 debug(&" Queue family {i} {queueFamilyProperty}") |
| 0 | 101 |
| 102 result.add(device) | |
| 103 | |
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104 proc filterForDevice(devices: seq[PhysicalDevice]): seq[(PhysicalDevice, uint32, uint32)] = |
| 0 | 105 for device in devices: |
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106 if not (device.formats.len > 0 and device.presentModes.len > 0 and "VK_KHR_swapchain" in device.extensions): |
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107 continue |
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108 var graphicsQueueFamily = high(uint32) |
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109 var presentationQueueFamily = high(uint32) |
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110 for i, queueFamily in enumerate(device.queueFamilies): |
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111 if queueFamily.hasSurfaceSupport: |
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112 presentationQueueFamily = uint32(i) |
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113 if bool(uint32(queueFamily.properties.queueFlags) and ord(VK_QUEUE_GRAPHICS_BIT)): |
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114 graphicsQueueFamily = uint32(i) |
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115 if graphicsQueueFamily != high(uint32) and presentationQueueFamily != high(uint32): |
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116 result.add((device, graphicsQueueFamily, presentationQueueFamily)) |
| 0 | 117 |
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118 for (device, graphicsQueueFamily, presentationQueueFamily) in result: |
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119 debug(&"Viable device: {cleanString(device.properties.deviceName)} (graphics queue family {graphicsQueueFamily}, presentation queue family {presentationQueueFamily})") |
| 0 | 120 |
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121 |
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122 proc getFrameDimension(window: NativeWindow, device: VkPhysicalDevice, surface: VkSurfaceKHR): VkExtent2D = |
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123 let capabilities = device.getSurfaceCapabilities(surface) |
| 0 | 124 if capabilities.currentExtent.width != high(uint32): |
| 125 return capabilities.currentExtent | |
| 126 else: | |
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127 let (width, height) = window.size() |
| 0 | 128 return VkExtent2D( |
| 129 width: min(max(uint32(width), capabilities.minImageExtent.width), capabilities.maxImageExtent.width), | |
| 130 height: min(max(uint32(height), capabilities.minImageExtent.height), capabilities.maxImageExtent.height), | |
| 131 ) | |
| 132 | |
| 10 | 133 when DEBUG_LOG: |
| 8 | 134 proc setupDebugLog(instance: VkInstance): VkDebugUtilsMessengerEXT = |
| 135 var createInfo = VkDebugUtilsMessengerCreateInfoEXT( | |
| 136 sType: VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT, | |
| 137 messageSeverity: VkDebugUtilsMessageSeverityFlagsEXT( | |
| 138 ord(VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT) or | |
| 139 ord(VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT) or | |
| 140 ord(VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT) | |
| 141 ), | |
| 142 messageType: VkDebugUtilsMessageTypeFlagsEXT( | |
| 143 ord(VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT) or | |
| 144 ord(VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT) or | |
| 145 ord(VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT) | |
| 146 ), | |
| 147 pfnUserCallback: debugCallback, | |
| 148 pUserData: nil, | |
| 149 ) | |
| 150 checkVkResult instance.vkCreateDebugUtilsMessengerEXT(addr(createInfo), nil, addr(result)) | |
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151 |
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152 proc setupVulkanDeviceAndQueues(instance: VkInstance, surface: VkSurfaceKHR): Device = |
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153 let usableDevices = instance.getAllPhysicalDevices(surface).filterForDevice() |
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154 if len(usableDevices) == 0: |
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155 raise newException(Exception, "No suitable graphics device found") |
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156 result.physicalDevice = usableDevices[0][0] |
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157 result.graphicsQueueFamily = usableDevices[0][1] |
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158 result.presentationQueueFamily = usableDevices[0][2] |
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159 |
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160 debug(&"Chose device {cleanString(result.physicalDevice.properties.deviceName)}") |
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161 |
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162 (result.device, result.graphicsQueue, result.presentationQueue) = getVulcanDevice( |
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163 result.physicalDevice.device, |
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164 result.physicalDevice.features, |
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165 result.graphicsQueueFamily, |
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166 result.presentationQueueFamily, |
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167 ) |
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168 |
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169 proc setupSwapChain(device: VkDevice, physicalDevice: PhysicalDevice, surface: VkSurfaceKHR, dimension: VkExtent2D, surfaceFormat: VkSurfaceFormatKHR): Swapchain = |
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170 |
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171 let capabilities = physicalDevice.device.getSurfaceCapabilities(surface) |
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172 var selectedPresentationMode = getPresentMode(physicalDevice.presentModes) |
| 0 | 173 # setup swapchain |
| 174 var swapchainCreateInfo = VkSwapchainCreateInfoKHR( | |
| 175 sType: VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR, | |
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176 surface: surface, |
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177 minImageCount: max(capabilities.minImageCount + 1, capabilities.maxImageCount), |
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178 imageFormat: surfaceFormat.format, |
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179 imageColorSpace: surfaceFormat.colorSpace, |
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180 imageExtent: dimension, |
| 0 | 181 imageArrayLayers: 1, |
| 182 imageUsage: VkImageUsageFlags(VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT), | |
| 183 # VK_SHARING_MODE_CONCURRENT no supported (i.e cannot use different queue families for drawing to swap surface?) | |
| 184 imageSharingMode: VK_SHARING_MODE_EXCLUSIVE, | |
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185 preTransform: capabilities.currentTransform, |
| 0 | 186 compositeAlpha: VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR, |
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187 presentMode: selectedPresentationMode, |
| 1 | 188 clipped: VK_TRUE, |
| 0 | 189 oldSwapchain: VkSwapchainKHR(0), |
| 190 ) | |
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191 checkVkResult device.vkCreateSwapchainKHR(addr(swapchainCreateInfo), nil, addr(result.swapchain)) |
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192 result.images = device.getSwapChainImages(result.swapchain) |
| 0 | 193 |
| 194 # setup swapchian image views | |
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195 |
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196 result.imageviews = newSeq[VkImageView](result.images.len) |
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197 for i, image in enumerate(result.images): |
| 0 | 198 var imageViewCreateInfo = VkImageViewCreateInfo( |
| 199 sType: VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO, | |
| 200 image: image, | |
| 201 viewType: VK_IMAGE_VIEW_TYPE_2D, | |
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202 format: surfaceFormat.format, |
| 0 | 203 components: VkComponentMapping( |
| 204 r: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 205 g: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 206 b: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 207 a: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 208 ), | |
| 209 subresourceRange: VkImageSubresourceRange( | |
| 210 aspectMask: VkImageAspectFlags(VK_IMAGE_ASPECT_COLOR_BIT), | |
| 211 baseMipLevel: 0, | |
| 212 levelCount: 1, | |
| 213 baseArrayLayer: 0, | |
| 214 layerCount: 1, | |
| 215 ), | |
| 216 ) | |
|
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217 checkVkResult device.vkCreateImageView(addr(imageViewCreateInfo), nil, addr(result.imageviews[i])) |
| 1 | 218 |
|
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219 proc setupRenderPass(device: VkDevice, format: VkFormat): VkRenderPass = |
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220 var |
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221 colorAttachment = VkAttachmentDescription( |
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222 format: format, |
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223 samples: VK_SAMPLE_COUNT_1_BIT, |
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224 loadOp: VK_ATTACHMENT_LOAD_OP_CLEAR, |
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225 storeOp: VK_ATTACHMENT_STORE_OP_STORE, |
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226 stencilLoadOp: VK_ATTACHMENT_LOAD_OP_DONT_CARE, |
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227 stencilStoreOp: VK_ATTACHMENT_STORE_OP_DONT_CARE, |
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228 initialLayout: VK_IMAGE_LAYOUT_UNDEFINED, |
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229 finalLayout: VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, |
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230 ) |
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231 colorAttachmentRef = VkAttachmentReference( |
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232 attachment: 0, |
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233 layout: VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, |
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234 ) |
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235 subpass = VkSubpassDescription( |
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236 pipelineBindPoint: VK_PIPELINE_BIND_POINT_GRAPHICS, |
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237 colorAttachmentCount: 1, |
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238 pColorAttachments: addr(colorAttachmentRef) |
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239 ) |
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240 dependency = VkSubpassDependency( |
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241 srcSubpass: VK_SUBPASS_EXTERNAL, |
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242 dstSubpass: 0, |
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243 srcStageMask: VkPipelineStageFlags(VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT), |
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244 srcAccessMask: VkAccessFlags(0), |
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245 dstStageMask: VkPipelineStageFlags(VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT), |
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246 dstAccessMask: VkAccessFlags(VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT), |
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247 ) |
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248 renderPassCreateInfo = VkRenderPassCreateInfo( |
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249 sType: VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO, |
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250 attachmentCount: 1, |
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251 pAttachments: addr(colorAttachment), |
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252 subpassCount: 1, |
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253 pSubpasses: addr(subpass), |
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254 dependencyCount: 1, |
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255 pDependencies: addr(dependency), |
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256 ) |
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257 checkVkResult device.vkCreateRenderPass(addr(renderPassCreateInfo), nil, addr(result)) |
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258 |
| 32 | 259 proc initRenderPipeline[VertexType, Uniforms](device: VkDevice, frameDimension: VkExtent2D, renderPass: VkRenderPass, vertexShader, fragmentShader: static string): RenderPipeline[VertexType, Uniforms] = |
|
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260 # load shaders |
| 28 | 261 result.device = device |
| 32 | 262 result.shaders.add(initShaderProgram[VertexType, Uniforms](device, VK_SHADER_STAGE_VERTEX_BIT, vertexShader)) |
| 263 result.shaders.add(initShaderProgram[VertexType, Uniforms](device, VK_SHADER_STAGE_FRAGMENT_BIT, fragmentShader)) | |
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264 |
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265 var |
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266 # define which parts can be dynamic (pipeline is fixed after setup) |
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267 dynamicStates = [VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR] |
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268 dynamicState = VkPipelineDynamicStateCreateInfo( |
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269 sType: VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO, |
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270 dynamicStateCount: uint32(dynamicStates.len), |
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271 pDynamicStates: addr(dynamicStates[0]), |
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272 ) |
| 32 | 273 vertexbindings = generateInputVertexBinding[VertexType]() |
| 274 attributebindings = generateInputAttributeBinding[VertexType]() | |
| 17 | 275 |
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276 # define input data format |
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277 vertexInputInfo = VkPipelineVertexInputStateCreateInfo( |
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278 sType: VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO, |
| 17 | 279 vertexBindingDescriptionCount: uint32(vertexbindings.len), |
| 280 pVertexBindingDescriptions: addr(vertexbindings[0]), | |
| 281 vertexAttributeDescriptionCount: uint32(attributebindings.len), | |
| 282 pVertexAttributeDescriptions: addr(attributebindings[0]), | |
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283 ) |
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284 inputAssembly = VkPipelineInputAssemblyStateCreateInfo( |
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285 sType: VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO, |
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286 topology: VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, |
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287 primitiveRestartEnable: VK_FALSE, |
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288 ) |
| 1 | 289 |
| 290 # setup viewport | |
|
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291 var viewportState = VkPipelineViewportStateCreateInfo( |
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292 sType: VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO, |
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293 viewportCount: 1, |
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294 scissorCount: 1, |
| 1 | 295 ) |
| 0 | 296 |
|
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297 # rasterizerization config |
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298 var |
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299 rasterizer = VkPipelineRasterizationStateCreateInfo( |
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300 sType: VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO, |
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301 depthClampEnable: VK_FALSE, |
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302 rasterizerDiscardEnable: VK_FALSE, |
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303 polygonMode: VK_POLYGON_MODE_FILL, |
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304 lineWidth: 1.0, |
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305 cullMode: VkCullModeFlags(VK_CULL_MODE_BACK_BIT), |
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306 frontFace: VK_FRONT_FACE_CLOCKWISE, |
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307 depthBiasEnable: VK_FALSE, |
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308 depthBiasConstantFactor: 0.0, |
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309 depthBiasClamp: 0.0, |
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310 depthBiasSlopeFactor: 0.0, |
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311 ) |
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312 multisampling = VkPipelineMultisampleStateCreateInfo( |
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313 sType: VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO, |
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314 sampleShadingEnable: VK_FALSE, |
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315 rasterizationSamples: VK_SAMPLE_COUNT_1_BIT, |
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316 minSampleShading: 1.0, |
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317 pSampleMask: nil, |
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318 alphaToCoverageEnable: VK_FALSE, |
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319 alphaToOneEnable: VK_FALSE, |
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320 ) |
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321 colorBlendAttachment = VkPipelineColorBlendAttachmentState( |
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322 colorWriteMask: VkColorComponentFlags( |
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323 ord(VK_COLOR_COMPONENT_R_BIT) or |
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324 ord(VK_COLOR_COMPONENT_G_BIT) or |
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325 ord(VK_COLOR_COMPONENT_B_BIT) or |
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326 ord(VK_COLOR_COMPONENT_A_BIT) |
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327 ), |
|
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328 blendEnable: VK_TRUE, |
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329 srcColorBlendFactor: VK_BLEND_FACTOR_SRC_ALPHA, |
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330 dstColorBlendFactor: VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA, |
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331 colorBlendOp: VK_BLEND_OP_ADD, |
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332 srcAlphaBlendFactor: VK_BLEND_FACTOR_ONE, |
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333 dstAlphaBlendFactor: VK_BLEND_FACTOR_ZERO, |
|
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334 alphaBlendOp: VK_BLEND_OP_ADD, |
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335 ) |
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336 colorBlending = VkPipelineColorBlendStateCreateInfo( |
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337 sType: VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO, |
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338 logicOpEnable: VK_TRUE, |
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339 logicOp: VK_LOGIC_OP_COPY, |
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340 attachmentCount: 1, |
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341 pAttachments: addr(colorBlendAttachment), |
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342 blendConstants: [0.0'f, 0.0'f, 0.0'f, 0.0'f], |
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343 ) |
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344 |
| 32 | 345 result.descriptorSetLayout = device.createUniformDescriptorLayout(VkShaderStageFlags(VK_SHADER_STAGE_VERTEX_BIT), 0) |
| 28 | 346 var |
| 347 # "globals" that go into the shader, uniforms etc. | |
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348 pipelineLayoutInfo = VkPipelineLayoutCreateInfo( |
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349 sType: VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO, |
| 28 | 350 setLayoutCount: 1, |
| 32 | 351 pSetLayouts: addr(result.descriptorSetLayout), |
|
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352 pushConstantRangeCount: 0, |
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353 pPushConstantRanges: nil, |
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354 ) |
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355 checkVkResult vkCreatePipelineLayout(device, addr(pipelineLayoutInfo), nil, addr(result.layout)) |
|
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356 |
| 17 | 357 var stages: seq[VkPipelineShaderStageCreateInfo] |
| 358 for shader in result.shaders: | |
| 359 stages.add(shader.shader) | |
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360 var pipelineInfo = VkGraphicsPipelineCreateInfo( |
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361 sType: VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO, |
| 17 | 362 stageCount: uint32(stages.len), |
| 363 pStages: addr(stages[0]), | |
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364 pVertexInputState: addr(vertexInputInfo), |
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365 pInputAssemblyState: addr(inputAssembly), |
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366 pViewportState: addr(viewportState), |
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367 pRasterizationState: addr(rasterizer), |
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368 pMultisampleState: addr(multisampling), |
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369 pDepthStencilState: nil, |
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370 pColorBlendState: addr(colorBlending), |
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371 pDynamicState: addr(dynamicState), |
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372 layout: result.layout, |
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373 renderPass: renderPass, |
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374 subpass: 0, |
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375 basePipelineHandle: VkPipeline(0), |
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376 basePipelineIndex: -1, |
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377 ) |
|
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378 checkVkResult vkCreateGraphicsPipelines( |
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379 device, |
|
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380 VkPipelineCache(0), |
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381 1, |
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382 addr(pipelineInfo), |
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383 nil, |
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384 addr(result.pipeline) |
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385 ) |
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386 |
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387 proc setupFramebuffers(device: VkDevice, swapchain: var Swapchain, renderPass: VkRenderPass, dimension: VkExtent2D): seq[VkFramebuffer] = |
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388 result = newSeq[VkFramebuffer](swapchain.images.len) |
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389 for i, imageview in enumerate(swapchain.imageviews): |
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390 var framebufferInfo = VkFramebufferCreateInfo( |
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391 sType: VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO, |
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392 renderPass: renderPass, |
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393 attachmentCount: 1, |
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394 pAttachments: addr(swapchain.imageviews[i]), |
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395 width: dimension.width, |
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396 height: dimension.height, |
|
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397 layers: 1, |
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398 ) |
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399 checkVkResult device.vkCreateFramebuffer(addr(framebufferInfo), nil, addr(result[i])) |
|
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400 |
|
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401 proc trash(device: VkDevice, swapchain: Swapchain, framebuffers: seq[VkFramebuffer]) = |
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402 for framebuffer in framebuffers: |
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403 device.vkDestroyFramebuffer(framebuffer, nil) |
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404 for imageview in swapchain.imageviews: |
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405 device.vkDestroyImageView(imageview, nil) |
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406 device.vkDestroySwapchainKHR(swapchain.swapchain, nil) |
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407 |
|
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408 proc recreateSwapchain(vulkan: Vulkan): (Swapchain, seq[VkFramebuffer]) = |
|
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409 debug(&"Recreate swapchain with dimension {vulkan.frameDimension}") |
|
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410 checkVkResult vulkan.device.device.vkDeviceWaitIdle() |
|
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411 |
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412 vulkan.device.device.trash(vulkan.swapchain, vulkan.framebuffers) |
|
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413 |
|
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414 result[0] = vulkan.device.device.setupSwapChain( |
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415 vulkan.device.physicalDevice, |
|
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416 vulkan.surface, |
|
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417 vulkan.frameDimension, |
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|
418 vulkan.surfaceFormat |
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419 ) |
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420 result[1] = vulkan.device.device.setupFramebuffers( |
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421 result[0], |
|
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422 vulkan.renderPass, |
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|
423 vulkan.frameDimension |
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424 ) |
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425 |
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426 |
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427 proc setupCommandBuffers(device: VkDevice, graphicsQueueFamily: uint32): (VkCommandPool, array[MAX_FRAMES_IN_FLIGHT, VkCommandBuffer]) = |
|
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428 # set up command buffer |
|
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429 var poolInfo = VkCommandPoolCreateInfo( |
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430 sType: VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO, |
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431 flags: VkCommandPoolCreateFlags(VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT), |
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432 queueFamilyIndex: graphicsQueueFamily, |
|
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433 ) |
|
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434 checkVkResult device.vkCreateCommandPool(addr(poolInfo), nil, addr(result[0])) |
|
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435 |
|
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436 var allocInfo = VkCommandBufferAllocateInfo( |
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437 sType: VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, |
|
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438 commandPool: result[0], |
|
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439 level: VK_COMMAND_BUFFER_LEVEL_PRIMARY, |
|
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440 commandBufferCount: result[1].len.uint32, |
|
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441 ) |
|
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|
442 checkVkResult device.vkAllocateCommandBuffers(addr(allocInfo), addr(result[1][0])) |
|
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443 |
|
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|
444 proc setupSyncPrimitives(device: VkDevice): ( |
|
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445 array[MAX_FRAMES_IN_FLIGHT, VkSemaphore], |
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446 array[MAX_FRAMES_IN_FLIGHT, VkSemaphore], |
|
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447 array[MAX_FRAMES_IN_FLIGHT, VkFence], |
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448 ) = |
|
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449 var semaphoreInfo = VkSemaphoreCreateInfo(sType: VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO) |
|
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450 var fenceInfo = VkFenceCreateInfo( |
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451 sType: VK_STRUCTURE_TYPE_FENCE_CREATE_INFO, |
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452 flags: VkFenceCreateFlags(VK_FENCE_CREATE_SIGNALED_BIT) |
|
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|
453 ) |
|
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|
454 for i in 0 ..< MAX_FRAMES_IN_FLIGHT: |
|
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|
455 checkVkResult device.vkCreateSemaphore(addr(semaphoreInfo), nil, addr(result[0][i])) |
|
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|
456 checkVkResult device.vkCreateSemaphore(addr(semaphoreInfo), nil, addr(result[1][i])) |
|
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|
457 checkVkResult device.vkCreateFence(addr(fenceInfo), nil, addr(result[2][i])) |
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458 |
| 28 | 459 proc igniteEngine*(windowTitle: string): Engine = |
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460 |
| 28 | 461 result.window = createWindow(windowTitle) |
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462 |
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463 # setup vulkan functions |
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464 vkLoad1_0() |
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465 vkLoad1_1() |
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466 vkLoad1_2() |
| 10 | 467 |
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468 # create vulkan instance |
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469 result.vulkan.instance = createVulkanInstance(VULKAN_VERSION) |
| 10 | 470 when DEBUG_LOG: |
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471 result.vulkan.debugMessenger = result.vulkan.instance.setupDebugLog() |
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472 result.vulkan.surface = result.vulkan.instance.createVulkanSurface(result.window) |
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473 result.vulkan.device = result.vulkan.instance.setupVulkanDeviceAndQueues(result.vulkan.surface) |
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474 |
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475 # get basic frame information |
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476 result.vulkan.surfaceFormat = result.vulkan.device.physicalDevice.formats.getSuitableSurfaceFormat() |
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477 result.vulkan.frameDimension = result.window.getFrameDimension(result.vulkan.device.physicalDevice.device, result.vulkan.surface) |
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478 |
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479 # setup swapchain and render pipeline |
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480 result.vulkan.swapchain = result.vulkan.device.device.setupSwapChain( |
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481 result.vulkan.device.physicalDevice, |
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482 result.vulkan.surface, |
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483 result.vulkan.frameDimension, |
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484 result.vulkan.surfaceFormat |
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485 ) |
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486 result.vulkan.renderPass = result.vulkan.device.device.setupRenderPass(result.vulkan.surfaceFormat.format) |
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487 result.vulkan.framebuffers = result.vulkan.device.device.setupFramebuffers( |
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488 result.vulkan.swapchain, |
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489 result.vulkan.renderPass, |
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490 result.vulkan.frameDimension |
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491 ) |
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492 ( |
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493 result.vulkan.commandPool, |
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494 result.vulkan.commandBuffers, |
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495 ) = result.vulkan.device.device.setupCommandBuffers(result.vulkan.device.graphicsQueueFamily) |
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496 |
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497 ( |
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498 result.vulkan.imageAvailableSemaphores, |
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499 result.vulkan.renderFinishedSemaphores, |
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500 result.vulkan.inFlightFences, |
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501 ) = result.vulkan.device.device.setupSyncPrimitives() |
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502 |
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503 |
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504 proc setupPipeline*[VertexType; UniformType; IndexType: uint16|uint32](engine: var Engine, scenedata: ref Thing, vertexShader, fragmentShader: static string): RenderPipeline[VertexType, UniformType] = |
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505 engine.currentscenedata = scenedata |
| 32 | 506 result = initRenderPipeline[VertexType, UniformType]( |
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507 engine.vulkan.device.device, |
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508 engine.vulkan.frameDimension, |
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509 engine.vulkan.renderPass, |
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510 vertexShader, |
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511 fragmentShader, |
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512 ) |
| 28 | 513 # vertex buffers |
| 514 var allmeshes: seq[Mesh[VertexType]] | |
| 515 for mesh in partsOfType[ref Mesh[VertexType]](engine.currentscenedata): | |
| 20 | 516 allmeshes.add(mesh[]) |
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517 if allmeshes.len > 0: |
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518 var ubermesh = createUberMesh(allmeshes) |
| 32 | 519 result.vertexBuffers.add createVertexBuffers(ubermesh, result.device, engine.vulkan.device.physicalDevice.device, engine.vulkan.commandPool, engine.vulkan.device.graphicsQueue) |
| 20 | 520 |
| 28 | 521 # vertex buffers with indexes |
| 522 var allindexedmeshes: seq[IndexedMesh[VertexType, IndexType]] | |
| 523 for mesh in partsOfType[ref IndexedMesh[VertexType, IndexType]](engine.currentscenedata): | |
| 20 | 524 allindexedmeshes.add(mesh[]) |
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525 if allindexedmeshes.len > 0: |
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526 var indexedubermesh = createUberMesh(allindexedmeshes) |
| 32 | 527 result.indexedVertexBuffers.add createIndexedVertexBuffers(indexedubermesh, result.device, engine.vulkan.device.physicalDevice.device, engine.vulkan.commandPool, engine.vulkan.device.graphicsQueue) |
| 28 | 528 |
| 529 # uniform buffers | |
| 530 result.uniformBuffers = createUniformBuffers[MAX_FRAMES_IN_FLIGHT, UniformType]( | |
| 32 | 531 result.device, |
| 28 | 532 engine.vulkan.device.physicalDevice.device |
| 533 ) | |
| 534 | |
| 32 | 535 var |
| 536 poolSize = VkDescriptorPoolSize( | |
| 537 `type`: VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, | |
| 538 descriptorCount: uint32(MAX_FRAMES_IN_FLIGHT), | |
| 539 ) | |
| 540 poolInfo = VkDescriptorPoolCreateInfo( | |
| 541 sType: VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO, | |
| 542 poolSizeCount: 1, | |
| 543 pPoolSizes: addr(poolSize), | |
| 544 maxSets: uint32(MAX_FRAMES_IN_FLIGHT), | |
| 545 ) | |
| 546 checkVkResult vkCreateDescriptorPool(result.device, addr(poolInfo), nil, addr(result.descriptorPool)) | |
| 28 | 547 |
| 32 | 548 var layouts: array[MAX_FRAMES_IN_FLIGHT, VkDescriptorSetLayout] |
| 549 for i in 0 ..< MAX_FRAMES_IN_FLIGHT: | |
| 550 layouts[i] = result.descriptorSetLayout | |
| 551 var allocInfo = VkDescriptorSetAllocateInfo( | |
| 552 sType: VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO, | |
| 553 descriptorPool: result.descriptorPool, | |
| 554 descriptorSetCount: uint32(MAX_FRAMES_IN_FLIGHT), | |
| 555 pSetLayouts: addr(layouts[0]), | |
| 556 ) | |
| 557 | |
| 558 checkVkResult vkAllocateDescriptorSets(result.device, addr(allocInfo), addr(result.descriptors[0])) | |
| 559 | |
| 560 var bufferInfos: array[MAX_FRAMES_IN_FLIGHT, array[1, VkDescriptorBufferInfo]] # because we use only one Uniform atm | |
| 561 for i in 0 ..< MAX_FRAMES_IN_FLIGHT: | |
| 562 bufferInfos[i][0] = VkDescriptorBufferInfo( | |
| 563 buffer: result.uniformBuffers[i].vkBuffer, | |
| 564 offset: VkDeviceSize(0), | |
| 565 range: VkDeviceSize(sizeof(UniformType)), | |
| 566 ) | |
| 567 var descriptorWrite = VkWriteDescriptorSet( | |
| 568 sType: VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, | |
| 569 dstSet: result.descriptors[i], | |
| 570 dstBinding: 0, | |
| 571 dstArrayElement: 0, | |
| 572 descriptorType: VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, | |
| 573 descriptorCount: 1, | |
| 574 pBufferInfo: cast[ptr ptr VkDescriptorBufferInfo](addr(bufferInfos[i][0])), | |
| 575 ) | |
| 576 vkUpdateDescriptorSets(result.device, 1, addr(descriptorWrite), 0, nil) | |
| 577 | |
| 578 | |
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579 proc runPipeline[VertexType; Uniforms](commandBuffer: VkCommandBuffer, pipeline: var RenderPipeline[VertexType, Uniforms], currentFrame: int) = |
| 28 | 580 vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline.pipeline) |
| 0 | 581 |
| 32 | 582 vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline.layout, 0, 1, addr(pipeline.descriptors[currentFrame]), 0, nil) |
| 28 | 583 for (vertexBufferSet, vertexCount) in pipeline.vertexBuffers: |
| 584 var | |
| 585 vertexBuffers: seq[VkBuffer] | |
| 586 offsets: seq[VkDeviceSize] | |
| 587 for buffer in vertexBufferSet: | |
| 588 vertexBuffers.add buffer.vkBuffer | |
| 589 offsets.add VkDeviceSize(0) | |
| 590 | |
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591 vkCmdBindVertexBuffers(commandBuffer, firstBinding=0'u32, bindingCount=uint32(vertexBuffers.len), pBuffers=addr(vertexBuffers[0]), pOffsets=addr(offsets[0])) |
| 28 | 592 vkCmdDraw(commandBuffer, vertexCount=vertexCount, instanceCount=1'u32, firstVertex=0'u32, firstInstance=0'u32) |
| 593 | |
| 594 for (vertexBufferSet, indexBuffer, indicesCount, indexType) in pipeline.indexedVertexBuffers: | |
| 595 var | |
| 596 vertexBuffers: seq[VkBuffer] | |
| 597 offsets: seq[VkDeviceSize] | |
| 598 for buffer in vertexBufferSet: | |
| 599 vertexBuffers.add buffer.vkBuffer | |
| 600 offsets.add VkDeviceSize(0) | |
| 601 | |
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602 vkCmdBindVertexBuffers(commandBuffer, firstBinding=0'u32, bindingCount=uint32(vertexBuffers.len), pBuffers=addr(vertexBuffers[0]), pOffsets=addr(offsets[0])) |
| 32 | 603 vkCmdBindIndexBuffer(commandBuffer, indexBuffer.vkBuffer, VkDeviceSize(0), indexType) |
| 604 vkCmdDrawIndexed(commandBuffer, indicesCount, 1, 0, 0, 0) | |
| 28 | 605 |
| 32 | 606 proc recordCommandBuffer(renderPass: VkRenderPass, pipeline: var RenderPipeline, commandBuffer: VkCommandBuffer, framebuffer: VkFramebuffer, frameDimension: VkExtent2D, currentFrame: int) = |
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607 var |
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608 beginInfo = VkCommandBufferBeginInfo( |
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609 sType: VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, |
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610 pInheritanceInfo: nil, |
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611 ) |
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612 clearColor = VkClearValue(color: VkClearColorValue(float32: [0.2'f, 0.2'f, 0.2'f, 1.0'f])) |
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613 renderPassInfo = VkRenderPassBeginInfo( |
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614 sType: VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO, |
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615 renderPass: renderPass, |
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616 framebuffer: framebuffer, |
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617 renderArea: VkRect2D( |
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618 offset: VkOffset2D(x: 0, y: 0), |
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619 extent: frameDimension, |
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620 ), |
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621 clearValueCount: 1, |
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622 pClearValues: addr(clearColor), |
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623 ) |
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624 viewport = VkViewport( |
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625 x: 0.0, |
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626 y: 0.0, |
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627 width: (float) frameDimension.width, |
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628 height: (float) frameDimension.height, |
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629 minDepth: 0.0, |
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630 maxDepth: 1.0, |
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631 ) |
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632 scissor = VkRect2D( |
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633 offset: VkOffset2D(x: 0, y: 0), |
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634 extent: frameDimension |
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635 ) |
| 28 | 636 checkVkResult vkBeginCommandBuffer(commandBuffer, addr(beginInfo)) |
| 637 block: | |
| 638 vkCmdBeginRenderPass(commandBuffer, addr(renderPassInfo), VK_SUBPASS_CONTENTS_INLINE) | |
| 639 vkCmdSetViewport(commandBuffer, firstViewport=0, viewportCount=1, addr(viewport)) | |
| 640 vkCmdSetScissor(commandBuffer, firstScissor=0, scissorCount=1, addr(scissor)) | |
| 32 | 641 runPipeline(commandBuffer, pipeline, currentFrame) |
| 28 | 642 vkCmdEndRenderPass(commandBuffer) |
| 643 checkVkResult vkEndCommandBuffer(commandBuffer) | |
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644 |
| 32 | 645 proc drawFrame(window: NativeWindow, vulkan: var Vulkan, currentFrame: int, resized: bool, pipeline: var RenderPipeline) = |
| 28 | 646 checkVkResult vkWaitForFences(vulkan.device.device, 1, addr(vulkan.inFlightFences[currentFrame]), VK_TRUE, high(uint64)) |
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647 var bufferImageIndex: uint32 |
| 28 | 648 let nextImageResult = vkAcquireNextImageKHR( |
| 649 vulkan.device.device, | |
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650 vulkan.swapchain.swapchain, |
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651 high(uint64), |
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652 vulkan.imageAvailableSemaphores[currentFrame], |
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653 VkFence(0), |
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654 addr(bufferImageIndex) |
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655 ) |
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656 if nextImageResult == VK_ERROR_OUT_OF_DATE_KHR: |
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657 vulkan.frameDimension = window.getFrameDimension(vulkan.device.physicalDevice.device, vulkan.surface) |
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658 (vulkan.swapchain, vulkan.framebuffers) = vulkan.recreateSwapchain() |
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659 elif not (nextImageResult in [VK_SUCCESS, VK_SUBOPTIMAL_KHR]): |
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660 raise newException(Exception, "Vulkan error: vkAcquireNextImageKHR returned " & $nextImageResult) |
| 28 | 661 checkVkResult vkResetFences(vulkan.device.device, 1, addr(vulkan.inFlightFences[currentFrame])) |
|
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662 |
| 28 | 663 checkVkResult vkResetCommandBuffer(vulkan.commandBuffers[currentFrame], VkCommandBufferResetFlags(0)) |
| 32 | 664 vulkan.renderPass.recordCommandBuffer(pipeline, vulkan.commandBuffers[currentFrame], vulkan.framebuffers[bufferImageIndex], vulkan.frameDimension, currentFrame) |
|
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665 var |
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666 waitSemaphores = [vulkan.imageAvailableSemaphores[currentFrame]] |
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667 waitStages = [VkPipelineStageFlags(VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT)] |
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668 signalSemaphores = [vulkan.renderFinishedSemaphores[currentFrame]] |
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669 submitInfo = VkSubmitInfo( |
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670 sType: VK_STRUCTURE_TYPE_SUBMIT_INFO, |
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671 waitSemaphoreCount: 1, |
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672 pWaitSemaphores: addr(waitSemaphores[0]), |
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673 pWaitDstStageMask: addr(waitStages[0]), |
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674 commandBufferCount: 1, |
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675 pCommandBuffers: addr(vulkan.commandBuffers[currentFrame]), |
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676 signalSemaphoreCount: 1, |
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677 pSignalSemaphores: addr(signalSemaphores[0]), |
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678 ) |
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679 checkVkResult vkQueueSubmit(vulkan.device.graphicsQueue, 1, addr(submitInfo), vulkan.inFlightFences[currentFrame]) |
|
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680 |
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681 var presentInfo = VkPresentInfoKHR( |
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682 sType: VK_STRUCTURE_TYPE_PRESENT_INFO_KHR, |
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683 waitSemaphoreCount: 1, |
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|
684 pWaitSemaphores: addr(signalSemaphores[0]), |
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685 swapchainCount: 1, |
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686 pSwapchains: addr(vulkan.swapchain.swapchain), |
|
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687 pImageIndices: addr(bufferImageIndex), |
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688 pResults: nil, |
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689 ) |
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690 let presentResult = vkQueuePresentKHR(vulkan.device.presentationQueue, addr(presentInfo)) |
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691 |
|
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692 if presentResult == VK_ERROR_OUT_OF_DATE_KHR or presentResult == VK_SUBOPTIMAL_KHR or resized: |
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693 vulkan.frameDimension = window.getFrameDimension(vulkan.device.physicalDevice.device, vulkan.surface) |
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694 (vulkan.swapchain, vulkan.framebuffers) = vulkan.recreateSwapchain() |
|
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695 |
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696 |
| 32 | 697 proc run*(engine: var Engine, pipeline: var RenderPipeline, globalUpdate: proc(engine: var Engine, dt: float32)) = |
|
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698 var |
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699 killed = false |
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700 currentFrame = 0 |
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701 resized = false |
| 28 | 702 lastUpdate = getTime() |
|
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703 |
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|
704 while not killed: |
| 28 | 705 |
| 706 # process input | |
|
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|
707 for event in engine.window.pendingEvents(): |
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708 case event.eventType: |
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|
709 of Quit: |
|
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710 killed = true |
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|
711 of ResizedWindow: |
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|
712 resized = true |
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713 of KeyDown: |
|
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|
714 echo event |
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Sam <sam@basx.dev>
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|
715 if event.key == Escape: |
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716 killed = true |
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717 else: |
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|
718 discard |
| 28 | 719 |
| 720 # game logic update | |
| 721 let | |
| 722 now = getTime() | |
| 32 | 723 dt = float32(float64((now - lastUpdate).inNanoseconds) / 1_000_000_000'f64) |
| 28 | 724 lastUpdate = now |
| 725 engine.globalUpdate(dt) | |
| 726 for entity in allEntities(engine.currentscenedata): | |
| 727 entity.update(dt) | |
| 728 | |
| 729 # submit frame for drawing | |
| 730 engine.window.drawFrame(engine.vulkan, currentFrame, resized, pipeline) | |
|
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731 resized = false |
| 32 | 732 currentFrame = (currentFrame + 1) mod MAX_FRAMES_IN_FLIGHT |
| 28 | 733 checkVkResult vkDeviceWaitIdle(engine.vulkan.device.device) |
|
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|
734 |
| 28 | 735 proc trash*(pipeline: var RenderPipeline) = |
| 32 | 736 vkDestroyDescriptorPool(pipeline.device, pipeline.descriptorPool, nil) |
| 737 vkDestroyDescriptorSetLayout(pipeline.device, pipeline.descriptorSetLayout, nil) | |
| 28 | 738 vkDestroyPipeline(pipeline.device, pipeline.pipeline, nil) |
| 739 vkDestroyPipelineLayout(pipeline.device, pipeline.layout, nil) | |
| 740 for shader in pipeline.shaders: | |
| 741 vkDestroyShaderModule(pipeline.device, shader.shader.module, nil) | |
| 742 | |
| 743 for (bufferset, cnt) in pipeline.vertexBuffers.mitems: | |
|
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|
744 for buffer in bufferset.mitems: |
|
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|
745 buffer.trash() |
| 28 | 746 for (bufferset, indexbuffer, cnt, t) in pipeline.indexedVertexBuffers.mitems: |
|
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|
747 indexbuffer.trash() |
|
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|
748 for buffer in bufferset.mitems: |
|
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|
749 buffer.trash() |
| 28 | 750 for buffer in pipeline.uniformBuffers.mitems: |
| 751 buffer.trash() | |
| 752 | |
| 753 proc trash*(engine: var Engine) = | |
| 754 checkVkResult vkDeviceWaitIdle(engine.vulkan.device.device) | |
|
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|
755 engine.vulkan.device.device.trash(engine.vulkan.swapchain, engine.vulkan.framebuffers) |
| 0 | 756 |
|
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|
757 for i in 0 ..< MAX_FRAMES_IN_FLIGHT: |
|
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|
758 engine.vulkan.device.device.vkDestroySemaphore(engine.vulkan.imageAvailableSemaphores[i], nil) |
|
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|
759 engine.vulkan.device.device.vkDestroySemaphore(engine.vulkan.renderFinishedSemaphores[i], nil) |
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|
760 engine.vulkan.device.device.vkDestroyFence(engine.vulkan.inFlightFences[i], nil) |
|
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Sam <sam@basx.dev>
parents:
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|
761 |
| 28 | 762 engine.vulkan.device.device.vkDestroyRenderPass(engine.vulkan.renderPass, nil) |
|
4
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|
763 engine.vulkan.device.device.vkDestroyCommandPool(engine.vulkan.commandPool, nil) |
|
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|
764 |
|
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Sam <sam@basx.dev>
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|
765 engine.vulkan.instance.vkDestroySurfaceKHR(engine.vulkan.surface, nil) |
|
4
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Sam <sam@basx.dev>
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|
766 engine.vulkan.device.device.vkDestroyDevice(nil) |
| 10 | 767 when DEBUG_LOG: |
|
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Sam <sam@basx.dev>
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|
768 engine.vulkan.instance.vkDestroyDebugUtilsMessengerEXT(engine.vulkan.debugMessenger, nil) |
| 9 | 769 engine.window.trash() |
| 28 | 770 engine.vulkan.instance.vkDestroyInstance(nil) # needs to happen after window is trashed as the driver might have a hook registered for the window destruction |