Mercurial > games > semicongine
annotate src/engine.nim @ 18:90e117952f74
add: basic vertex buffer functionality
| author | Sam <sam@basx.dev> |
|---|---|
| date | Thu, 05 Jan 2023 01:16:48 +0700 |
| parents | b40466fa446a |
| children |
| rev | line source |
|---|---|
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1 import std/typetraits |
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2 import std/strformat |
| 0 | 3 import std/enumerate |
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4 import std/logging |
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5 |
| 0 | 6 |
| 7 import ./vulkan | |
| 8 import ./vulkan_helpers | |
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9 import ./window |
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10 import ./events |
| 17 | 11 import ./math/vector |
| 12 import ./shader | |
| 13 import ./vertex | |
| 18 | 14 import ./buffer |
| 0 | 15 |
| 16 import ./glslang/glslang | |
| 17 | |
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18 const MAX_FRAMES_IN_FLIGHT = 2 |
| 10 | 19 const DEBUG_LOG = not defined(release) |
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20 |
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21 var logger = newConsoleLogger() |
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22 addHandler(logger) |
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23 |
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24 |
| 17 | 25 type |
| 26 MyVertex = object | |
| 27 position: VertexAttribute[Vec2[float32]] | |
| 28 color: VertexAttribute[Vec3[float32]] | |
| 29 | |
| 18 | 30 var vertices = ( |
| 31 [ | |
| 32 Vec2([-0.5'f32, -0.5'f32]), | |
| 33 Vec2([ 0.5'f32, 0.5'f32]), | |
| 34 Vec2([-0.5'f32, 0.5'f32]), | |
| 17 | 35 |
| 18 | 36 Vec2([ 0.0'f32, -0.7'f32]), |
| 37 Vec2([ 0.6'f32, 0.1'f32]), | |
| 38 Vec2([ 0.3'f32, 0.4'f32]), | |
| 39 ], | |
| 17 | 40 [ |
| 18 | 41 Vec3([1.0'f32, 1.0'f32, 0.0'f32]), |
| 42 Vec3([0.0'f32, 1.0'f32, 0.0'f32]), | |
| 43 Vec3([0.0'f32, 1.0'f32, 1.0'f32]), | |
| 44 | |
| 45 Vec3([1.0'f32, 1.0'f32, 0.0'f32]), | |
| 46 Vec3([1.0'f32, 0.0'f32, 0.0'f32]), | |
| 47 Vec3([0.0'f32, 1.0'f32, 1.0'f32]), | |
| 17 | 48 ] |
| 18 | 49 ) |
| 17 | 50 |
| 51 var vertexShaderCode = """ | |
| 52 #version 450 | |
| 53 | |
| 54 layout(location = 0) in vec2 inPosition; | |
| 55 layout(location = 1) in vec3 inColor; | |
| 56 | |
| 1 | 57 layout(location = 0) out vec3 fragColor; |
| 17 | 58 |
| 1 | 59 void main() { |
| 17 | 60 gl_Position = vec4(inPosition, 0.0, 1.0); |
| 61 fragColor = inColor; | |
| 62 } | |
| 63 """ | |
| 1 | 64 |
| 17 | 65 var fragmentShaderCode = """#version 450 |
| 1 | 66 layout(location = 0) out vec4 outColor; |
| 67 layout(location = 0) in vec3 fragColor; | |
| 68 void main() { | |
| 69 outColor = vec4(fragColor, 1.0); | |
| 70 }""" | |
| 0 | 71 |
| 72 const VULKAN_VERSION = VK_MAKE_API_VERSION(0'u32, 1'u32, 2'u32, 0'u32) | |
| 73 | |
| 74 type | |
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75 Device = object |
| 18 | 76 device: VkDevice |
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77 physicalDevice: PhysicalDevice |
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78 graphicsQueueFamily: uint32 |
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79 presentationQueueFamily: uint32 |
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80 graphicsQueue: VkQueue |
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81 presentationQueue: VkQueue |
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82 Swapchain = object |
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83 swapchain: VkSwapchainKHR |
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84 images: seq[VkImage] |
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85 imageviews: seq[VkImageView] |
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86 RenderPipeline = object |
| 17 | 87 shaders*: seq[ShaderProgram] |
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88 layout*: VkPipelineLayout |
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89 pipeline*: VkPipeline |
| 0 | 90 QueueFamily = object |
| 91 properties*: VkQueueFamilyProperties | |
| 92 hasSurfaceSupport*: bool | |
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93 PhysicalDevice = object |
| 0 | 94 device*: VkPhysicalDevice |
| 95 extensions*: seq[string] | |
| 96 properties*: VkPhysicalDeviceProperties | |
| 97 features*: VkPhysicalDeviceFeatures | |
| 98 queueFamilies*: seq[QueueFamily] | |
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99 formats: seq[VkSurfaceFormatKHR] |
| 0 | 100 presentModes: seq[VkPresentModeKHR] |
| 101 Vulkan* = object | |
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102 debugMessenger: VkDebugUtilsMessengerEXT |
| 0 | 103 instance*: VkInstance |
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104 deviceList*: seq[PhysicalDevice] |
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105 device*: Device |
| 0 | 106 surface*: VkSurfaceKHR |
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107 surfaceFormat: VkSurfaceFormatKHR |
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108 frameDimension: VkExtent2D |
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109 swapchain: Swapchain |
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110 framebuffers: seq[VkFramebuffer] |
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111 renderPass*: VkRenderPass |
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112 pipeline*: RenderPipeline |
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113 commandPool*: VkCommandPool |
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114 commandBuffers*: array[MAX_FRAMES_IN_FLIGHT, VkCommandBuffer] |
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115 imageAvailableSemaphores*: array[MAX_FRAMES_IN_FLIGHT, VkSemaphore] |
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116 renderFinishedSemaphores*: array[MAX_FRAMES_IN_FLIGHT, VkSemaphore] |
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117 inFlightFences*: array[MAX_FRAMES_IN_FLIGHT, VkFence] |
| 18 | 118 bufferA*: Buffer |
| 119 bufferB*: Buffer | |
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120 Engine* = object |
| 0 | 121 vulkan*: Vulkan |
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122 window: NativeWindow |
| 0 | 123 |
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124 proc getAllPhysicalDevices(instance: VkInstance, surface: VkSurfaceKHR): seq[PhysicalDevice] = |
| 0 | 125 for vulkanPhysicalDevice in getVulkanPhysicalDevices(instance): |
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126 var device = PhysicalDevice(device: vulkanPhysicalDevice, extensions: getDeviceExtensions(vulkanPhysicalDevice)) |
| 0 | 127 vkGetPhysicalDeviceProperties(vulkanPhysicalDevice, addr(device.properties)) |
| 128 vkGetPhysicalDeviceFeatures(vulkanPhysicalDevice, addr(device.features)) | |
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129 device.formats = vulkanPhysicalDevice.getDeviceSurfaceFormats(surface) |
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130 device.presentModes = vulkanPhysicalDevice.getDeviceSurfacePresentModes(surface) |
| 0 | 131 |
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132 debug(&"Physical device nr {int(vulkanPhysicalDevice)} {cleanString(device.properties.deviceName)}") |
| 0 | 133 for i, queueFamilyProperty in enumerate(getQueueFamilies(vulkanPhysicalDevice)): |
| 1 | 134 var hasSurfaceSupport: VkBool32 = VK_FALSE |
| 0 | 135 checkVkResult vkGetPhysicalDeviceSurfaceSupportKHR(vulkanPhysicalDevice, uint32(i), surface, addr(hasSurfaceSupport)) |
| 136 device.queueFamilies.add(QueueFamily(properties: queueFamilyProperty, hasSurfaceSupport: bool(hasSurfaceSupport))) | |
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137 debug(&" Queue family {i} {queueFamilyProperty}") |
| 0 | 138 |
| 139 result.add(device) | |
| 140 | |
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141 proc filterForDevice(devices: seq[PhysicalDevice]): seq[(PhysicalDevice, uint32, uint32)] = |
| 0 | 142 for device in devices: |
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143 if not (device.formats.len > 0 and device.presentModes.len > 0 and "VK_KHR_swapchain" in device.extensions): |
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144 continue |
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145 var graphicsQueueFamily = high(uint32) |
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146 var presentationQueueFamily = high(uint32) |
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147 for i, queueFamily in enumerate(device.queueFamilies): |
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148 if queueFamily.hasSurfaceSupport: |
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149 presentationQueueFamily = uint32(i) |
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150 if bool(uint32(queueFamily.properties.queueFlags) and ord(VK_QUEUE_GRAPHICS_BIT)): |
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151 graphicsQueueFamily = uint32(i) |
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152 if graphicsQueueFamily != high(uint32) and presentationQueueFamily != high(uint32): |
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153 result.add((device, graphicsQueueFamily, presentationQueueFamily)) |
| 0 | 154 |
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155 for (device, graphicsQueueFamily, presentationQueueFamily) in result: |
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156 debug(&"Viable device: {cleanString(device.properties.deviceName)} (graphics queue family {graphicsQueueFamily}, presentation queue family {presentationQueueFamily})") |
| 0 | 157 |
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158 |
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159 proc getFrameDimension(window: NativeWindow, device: VkPhysicalDevice, surface: VkSurfaceKHR): VkExtent2D = |
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160 let capabilities = device.getSurfaceCapabilities(surface) |
| 0 | 161 if capabilities.currentExtent.width != high(uint32): |
| 162 return capabilities.currentExtent | |
| 163 else: | |
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164 let (width, height) = window.size() |
| 0 | 165 return VkExtent2D( |
| 166 width: min(max(uint32(width), capabilities.minImageExtent.width), capabilities.maxImageExtent.width), | |
| 167 height: min(max(uint32(height), capabilities.minImageExtent.height), capabilities.maxImageExtent.height), | |
| 168 ) | |
| 169 | |
| 10 | 170 when DEBUG_LOG: |
| 8 | 171 proc setupDebugLog(instance: VkInstance): VkDebugUtilsMessengerEXT = |
| 172 var createInfo = VkDebugUtilsMessengerCreateInfoEXT( | |
| 173 sType: VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT, | |
| 174 messageSeverity: VkDebugUtilsMessageSeverityFlagsEXT( | |
| 175 ord(VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT) or | |
| 176 ord(VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT) or | |
| 177 ord(VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT) | |
| 178 ), | |
| 179 messageType: VkDebugUtilsMessageTypeFlagsEXT( | |
| 180 ord(VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT) or | |
| 181 ord(VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT) or | |
| 182 ord(VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT) | |
| 183 ), | |
| 184 pfnUserCallback: debugCallback, | |
| 185 pUserData: nil, | |
| 186 ) | |
| 187 checkVkResult instance.vkCreateDebugUtilsMessengerEXT(addr(createInfo), nil, addr(result)) | |
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188 |
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189 proc setupVulkanDeviceAndQueues(instance: VkInstance, surface: VkSurfaceKHR): Device = |
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190 let usableDevices = instance.getAllPhysicalDevices(surface).filterForDevice() |
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191 if len(usableDevices) == 0: |
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192 raise newException(Exception, "No suitable graphics device found") |
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193 result.physicalDevice = usableDevices[0][0] |
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194 result.graphicsQueueFamily = usableDevices[0][1] |
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195 result.presentationQueueFamily = usableDevices[0][2] |
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196 |
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197 debug(&"Chose device {cleanString(result.physicalDevice.properties.deviceName)}") |
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198 |
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199 (result.device, result.graphicsQueue, result.presentationQueue) = getVulcanDevice( |
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200 result.physicalDevice.device, |
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201 result.physicalDevice.features, |
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202 result.graphicsQueueFamily, |
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203 result.presentationQueueFamily, |
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204 ) |
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205 |
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206 proc setupSwapChain(device: VkDevice, physicalDevice: PhysicalDevice, surface: VkSurfaceKHR, dimension: VkExtent2D, surfaceFormat: VkSurfaceFormatKHR): Swapchain = |
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207 |
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208 let capabilities = physicalDevice.device.getSurfaceCapabilities(surface) |
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209 var selectedPresentationMode = getPresentMode(physicalDevice.presentModes) |
| 0 | 210 # setup swapchain |
| 211 var swapchainCreateInfo = VkSwapchainCreateInfoKHR( | |
| 212 sType: VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR, | |
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213 surface: surface, |
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214 minImageCount: max(capabilities.minImageCount + 1, capabilities.maxImageCount), |
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215 imageFormat: surfaceFormat.format, |
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216 imageColorSpace: surfaceFormat.colorSpace, |
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217 imageExtent: dimension, |
| 0 | 218 imageArrayLayers: 1, |
| 219 imageUsage: VkImageUsageFlags(VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT), | |
| 220 # VK_SHARING_MODE_CONCURRENT no supported (i.e cannot use different queue families for drawing to swap surface?) | |
| 221 imageSharingMode: VK_SHARING_MODE_EXCLUSIVE, | |
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222 preTransform: capabilities.currentTransform, |
| 0 | 223 compositeAlpha: VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR, |
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224 presentMode: selectedPresentationMode, |
| 1 | 225 clipped: VK_TRUE, |
| 0 | 226 oldSwapchain: VkSwapchainKHR(0), |
| 227 ) | |
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228 checkVkResult device.vkCreateSwapchainKHR(addr(swapchainCreateInfo), nil, addr(result.swapchain)) |
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229 result.images = device.getSwapChainImages(result.swapchain) |
| 0 | 230 |
| 231 # setup swapchian image views | |
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232 |
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233 result.imageviews = newSeq[VkImageView](result.images.len) |
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234 for i, image in enumerate(result.images): |
| 0 | 235 var imageViewCreateInfo = VkImageViewCreateInfo( |
| 236 sType: VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO, | |
| 237 image: image, | |
| 238 viewType: VK_IMAGE_VIEW_TYPE_2D, | |
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239 format: surfaceFormat.format, |
| 0 | 240 components: VkComponentMapping( |
| 241 r: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 242 g: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 243 b: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 244 a: VK_COMPONENT_SWIZZLE_IDENTITY, | |
| 245 ), | |
| 246 subresourceRange: VkImageSubresourceRange( | |
| 247 aspectMask: VkImageAspectFlags(VK_IMAGE_ASPECT_COLOR_BIT), | |
| 248 baseMipLevel: 0, | |
| 249 levelCount: 1, | |
| 250 baseArrayLayer: 0, | |
| 251 layerCount: 1, | |
| 252 ), | |
| 253 ) | |
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254 checkVkResult device.vkCreateImageView(addr(imageViewCreateInfo), nil, addr(result.imageviews[i])) |
| 1 | 255 |
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256 proc setupRenderPass(device: VkDevice, format: VkFormat): VkRenderPass = |
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257 var |
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258 colorAttachment = VkAttachmentDescription( |
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259 format: format, |
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260 samples: VK_SAMPLE_COUNT_1_BIT, |
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261 loadOp: VK_ATTACHMENT_LOAD_OP_CLEAR, |
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262 storeOp: VK_ATTACHMENT_STORE_OP_STORE, |
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263 stencilLoadOp: VK_ATTACHMENT_LOAD_OP_DONT_CARE, |
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264 stencilStoreOp: VK_ATTACHMENT_STORE_OP_DONT_CARE, |
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265 initialLayout: VK_IMAGE_LAYOUT_UNDEFINED, |
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266 finalLayout: VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, |
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267 ) |
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268 colorAttachmentRef = VkAttachmentReference( |
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269 attachment: 0, |
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270 layout: VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, |
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271 ) |
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272 subpass = VkSubpassDescription( |
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273 pipelineBindPoint: VK_PIPELINE_BIND_POINT_GRAPHICS, |
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274 colorAttachmentCount: 1, |
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275 pColorAttachments: addr(colorAttachmentRef) |
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276 ) |
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277 dependency = VkSubpassDependency( |
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278 srcSubpass: VK_SUBPASS_EXTERNAL, |
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279 dstSubpass: 0, |
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280 srcStageMask: VkPipelineStageFlags(VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT), |
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281 srcAccessMask: VkAccessFlags(0), |
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282 dstStageMask: VkPipelineStageFlags(VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT), |
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283 dstAccessMask: VkAccessFlags(VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT), |
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284 ) |
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285 renderPassCreateInfo = VkRenderPassCreateInfo( |
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286 sType: VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO, |
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287 attachmentCount: 1, |
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288 pAttachments: addr(colorAttachment), |
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289 subpassCount: 1, |
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290 pSubpasses: addr(subpass), |
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291 dependencyCount: 1, |
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292 pDependencies: addr(dependency), |
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293 ) |
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294 checkVkResult device.vkCreateRenderPass(addr(renderPassCreateInfo), nil, addr(result)) |
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295 |
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296 proc setupRenderPipeline(device: VkDevice, frameDimension: VkExtent2D, renderPass: VkRenderPass): RenderPipeline = |
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297 # load shaders |
| 17 | 298 result.shaders.add(device.initShaderProgram(VK_SHADER_STAGE_VERTEX_BIT, vertexShaderCode)) |
| 299 result.shaders.add(device.initShaderProgram(VK_SHADER_STAGE_FRAGMENT_BIT, fragmentShaderCode)) | |
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300 |
|
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301 var |
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302 # define which parts can be dynamic (pipeline is fixed after setup) |
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303 dynamicStates = [VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR] |
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304 dynamicState = VkPipelineDynamicStateCreateInfo( |
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305 sType: VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO, |
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306 dynamicStateCount: uint32(dynamicStates.len), |
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307 pDynamicStates: addr(dynamicStates[0]), |
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308 ) |
| 17 | 309 vertexbindings = generateInputVertexBinding[MyVertex]() |
| 310 attributebindings = generateInputAttributeBinding[MyVertex]() | |
| 311 | |
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312 # define input data format |
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313 vertexInputInfo = VkPipelineVertexInputStateCreateInfo( |
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314 sType: VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO, |
| 17 | 315 vertexBindingDescriptionCount: uint32(vertexbindings.len), |
| 316 pVertexBindingDescriptions: addr(vertexbindings[0]), | |
| 317 vertexAttributeDescriptionCount: uint32(attributebindings.len), | |
| 318 pVertexAttributeDescriptions: addr(attributebindings[0]), | |
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319 ) |
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320 inputAssembly = VkPipelineInputAssemblyStateCreateInfo( |
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321 sType: VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO, |
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322 topology: VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, |
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323 primitiveRestartEnable: VK_FALSE, |
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324 ) |
| 1 | 325 |
| 326 # setup viewport | |
|
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327 var viewportState = VkPipelineViewportStateCreateInfo( |
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328 sType: VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO, |
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329 viewportCount: 1, |
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330 scissorCount: 1, |
| 1 | 331 ) |
| 0 | 332 |
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333 # rasterizerization config |
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334 var |
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335 rasterizer = VkPipelineRasterizationStateCreateInfo( |
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336 sType: VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO, |
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337 depthClampEnable: VK_FALSE, |
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338 rasterizerDiscardEnable: VK_FALSE, |
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339 polygonMode: VK_POLYGON_MODE_FILL, |
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340 lineWidth: 1.0, |
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341 cullMode: VkCullModeFlags(VK_CULL_MODE_BACK_BIT), |
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342 frontFace: VK_FRONT_FACE_CLOCKWISE, |
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343 depthBiasEnable: VK_FALSE, |
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344 depthBiasConstantFactor: 0.0, |
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345 depthBiasClamp: 0.0, |
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346 depthBiasSlopeFactor: 0.0, |
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347 ) |
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348 multisampling = VkPipelineMultisampleStateCreateInfo( |
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349 sType: VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO, |
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350 sampleShadingEnable: VK_FALSE, |
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351 rasterizationSamples: VK_SAMPLE_COUNT_1_BIT, |
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352 minSampleShading: 1.0, |
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353 pSampleMask: nil, |
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354 alphaToCoverageEnable: VK_FALSE, |
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355 alphaToOneEnable: VK_FALSE, |
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356 ) |
|
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357 colorBlendAttachment = VkPipelineColorBlendAttachmentState( |
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358 colorWriteMask: VkColorComponentFlags( |
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|
359 ord(VK_COLOR_COMPONENT_R_BIT) or |
|
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360 ord(VK_COLOR_COMPONENT_G_BIT) or |
|
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361 ord(VK_COLOR_COMPONENT_B_BIT) or |
|
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362 ord(VK_COLOR_COMPONENT_A_BIT) |
|
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363 ), |
|
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364 blendEnable: VK_TRUE, |
|
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365 srcColorBlendFactor: VK_BLEND_FACTOR_SRC_ALPHA, |
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366 dstColorBlendFactor: VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA, |
|
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367 colorBlendOp: VK_BLEND_OP_ADD, |
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368 srcAlphaBlendFactor: VK_BLEND_FACTOR_ONE, |
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369 dstAlphaBlendFactor: VK_BLEND_FACTOR_ZERO, |
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370 alphaBlendOp: VK_BLEND_OP_ADD, |
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371 ) |
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372 colorBlending = VkPipelineColorBlendStateCreateInfo( |
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373 sType: VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO, |
|
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374 logicOpEnable: VK_TRUE, |
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375 logicOp: VK_LOGIC_OP_COPY, |
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376 attachmentCount: 1, |
|
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377 pAttachments: addr(colorBlendAttachment), |
|
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378 blendConstants: [0.0'f, 0.0'f, 0.0'f, 0.0'f], |
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|
379 ) |
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380 |
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381 # create pipeline |
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382 pipelineLayoutInfo = VkPipelineLayoutCreateInfo( |
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383 sType: VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO, |
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384 setLayoutCount: 0, |
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385 pSetLayouts: nil, |
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386 pushConstantRangeCount: 0, |
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387 pPushConstantRanges: nil, |
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388 ) |
|
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|
389 checkVkResult device.vkCreatePipelineLayout(addr(pipelineLayoutInfo), nil, addr(result.layout)) |
|
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|
390 |
| 17 | 391 var stages: seq[VkPipelineShaderStageCreateInfo] |
| 392 for shader in result.shaders: | |
| 393 stages.add(shader.shader) | |
|
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394 var pipelineInfo = VkGraphicsPipelineCreateInfo( |
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|
395 sType: VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO, |
| 17 | 396 stageCount: uint32(stages.len), |
| 397 pStages: addr(stages[0]), | |
|
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398 pVertexInputState: addr(vertexInputInfo), |
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399 pInputAssemblyState: addr(inputAssembly), |
|
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400 pViewportState: addr(viewportState), |
|
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|
401 pRasterizationState: addr(rasterizer), |
|
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|
402 pMultisampleState: addr(multisampling), |
|
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|
403 pDepthStencilState: nil, |
|
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|
404 pColorBlendState: addr(colorBlending), |
|
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|
405 pDynamicState: addr(dynamicState), |
|
4
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|
406 layout: result.layout, |
|
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|
407 renderPass: renderPass, |
|
2
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parents:
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|
408 subpass: 0, |
|
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parents:
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|
409 basePipelineHandle: VkPipeline(0), |
|
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|
410 basePipelineIndex: -1, |
|
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parents:
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|
411 ) |
|
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|
412 checkVkResult device.vkCreateGraphicsPipelines( |
|
2
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|
413 VkPipelineCache(0), |
|
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|
414 1, |
|
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Sam <sam@basx.dev>
parents:
1
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|
415 addr(pipelineInfo), |
|
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parents:
1
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|
416 nil, |
|
4
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|
417 addr(result.pipeline) |
|
2
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|
418 ) |
|
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Sam <sam@basx.dev>
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|
419 |
|
4
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Sam <sam@basx.dev>
parents:
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|
420 proc setupFramebuffers(device: VkDevice, swapchain: var Swapchain, renderPass: VkRenderPass, dimension: VkExtent2D): seq[VkFramebuffer] = |
|
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parents:
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|
421 result = newSeq[VkFramebuffer](swapchain.images.len) |
|
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Sam <sam@basx.dev>
parents:
2
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|
422 for i, imageview in enumerate(swapchain.imageviews): |
|
2
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parents:
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|
423 var framebufferInfo = VkFramebufferCreateInfo( |
|
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|
424 sType: VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO, |
|
4
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|
425 renderPass: renderPass, |
|
2
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Sam <sam@basx.dev>
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|
426 attachmentCount: 1, |
|
4
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Sam <sam@basx.dev>
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2
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|
427 pAttachments: addr(swapchain.imageviews[i]), |
|
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Sam <sam@basx.dev>
parents:
2
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|
428 width: dimension.width, |
|
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Sam <sam@basx.dev>
parents:
2
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|
429 height: dimension.height, |
|
2
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Sam <sam@basx.dev>
parents:
1
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|
430 layers: 1, |
|
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Sam <sam@basx.dev>
parents:
1
diff
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|
431 ) |
|
4
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Sam <sam@basx.dev>
parents:
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|
432 checkVkResult device.vkCreateFramebuffer(addr(framebufferInfo), nil, addr(result[i])) |
|
2
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did: hello world triangle, a bit of code organization
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parents:
1
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|
433 |
|
5
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add: structure code for crossplatform, add some input handling + bugfixes
Sam <sam@basx.dev>
parents:
4
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|
434 proc trash(device: VkDevice, swapchain: Swapchain, framebuffers: seq[VkFramebuffer]) = |
|
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Sam <sam@basx.dev>
parents:
4
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|
435 for framebuffer in framebuffers: |
|
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add: structure code for crossplatform, add some input handling + bugfixes
Sam <sam@basx.dev>
parents:
4
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|
436 device.vkDestroyFramebuffer(framebuffer, nil) |
|
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add: structure code for crossplatform, add some input handling + bugfixes
Sam <sam@basx.dev>
parents:
4
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|
437 for imageview in swapchain.imageviews: |
|
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add: structure code for crossplatform, add some input handling + bugfixes
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parents:
4
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|
438 device.vkDestroyImageView(imageview, nil) |
|
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add: structure code for crossplatform, add some input handling + bugfixes
Sam <sam@basx.dev>
parents:
4
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|
439 device.vkDestroySwapchainKHR(swapchain.swapchain, nil) |
|
4ed9cb098315
add: structure code for crossplatform, add some input handling + bugfixes
Sam <sam@basx.dev>
parents:
4
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|
440 |
|
4
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did: refactor, add resizing, proper cleanup
Sam <sam@basx.dev>
parents:
2
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|
441 proc recreateSwapchain(vulkan: Vulkan): (Swapchain, seq[VkFramebuffer]) = |
|
5
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Sam <sam@basx.dev>
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|
442 debug(&"Recreate swapchain with dimension {vulkan.frameDimension}") |
|
4
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Sam <sam@basx.dev>
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|
443 checkVkResult vulkan.device.device.vkDeviceWaitIdle() |
|
5
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Sam <sam@basx.dev>
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4
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|
444 |
|
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add: structure code for crossplatform, add some input handling + bugfixes
Sam <sam@basx.dev>
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4
diff
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|
445 vulkan.device.device.trash(vulkan.swapchain, vulkan.framebuffers) |
|
4
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Sam <sam@basx.dev>
parents:
2
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|
446 |
|
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Sam <sam@basx.dev>
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2
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|
447 result[0] = vulkan.device.device.setupSwapChain( |
|
af9183acb173
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Sam <sam@basx.dev>
parents:
2
diff
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|
448 vulkan.device.physicalDevice, |
|
af9183acb173
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Sam <sam@basx.dev>
parents:
2
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|
449 vulkan.surface, |
|
af9183acb173
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Sam <sam@basx.dev>
parents:
2
diff
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|
450 vulkan.frameDimension, |
|
af9183acb173
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Sam <sam@basx.dev>
parents:
2
diff
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|
451 vulkan.surfaceFormat |
|
af9183acb173
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Sam <sam@basx.dev>
parents:
2
diff
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|
452 ) |
|
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Sam <sam@basx.dev>
parents:
2
diff
changeset
|
453 result[1] = vulkan.device.device.setupFramebuffers( |
|
af9183acb173
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Sam <sam@basx.dev>
parents:
2
diff
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|
454 result[0], |
|
af9183acb173
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Sam <sam@basx.dev>
parents:
2
diff
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|
455 vulkan.renderPass, |
|
af9183acb173
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Sam <sam@basx.dev>
parents:
2
diff
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|
456 vulkan.frameDimension |
|
af9183acb173
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Sam <sam@basx.dev>
parents:
2
diff
changeset
|
457 ) |
|
af9183acb173
did: refactor, add resizing, proper cleanup
Sam <sam@basx.dev>
parents:
2
diff
changeset
|
458 |
|
af9183acb173
did: refactor, add resizing, proper cleanup
Sam <sam@basx.dev>
parents:
2
diff
changeset
|
459 |
|
af9183acb173
did: refactor, add resizing, proper cleanup
Sam <sam@basx.dev>
parents:
2
diff
changeset
|
460 proc setupCommandBuffers(device: VkDevice, graphicsQueueFamily: uint32): (VkCommandPool, array[MAX_FRAMES_IN_FLIGHT, VkCommandBuffer]) = |
|
2
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Sam <sam@basx.dev>
parents:
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|
461 # set up command buffer |
|
213fdf8d31dd
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|
462 var poolInfo = VkCommandPoolCreateInfo( |
|
213fdf8d31dd
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parents:
1
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|
463 sType: VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO, |
|
213fdf8d31dd
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Sam <sam@basx.dev>
parents:
1
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|
464 flags: VkCommandPoolCreateFlags(VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT), |
|
4
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Sam <sam@basx.dev>
parents:
2
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|
465 queueFamilyIndex: graphicsQueueFamily, |
|
2
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Sam <sam@basx.dev>
parents:
1
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changeset
|
466 ) |
|
4
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Sam <sam@basx.dev>
parents:
2
diff
changeset
|
467 checkVkResult device.vkCreateCommandPool(addr(poolInfo), nil, addr(result[0])) |
|
2
213fdf8d31dd
did: hello world triangle, a bit of code organization
Sam <sam@basx.dev>
parents:
1
diff
changeset
|
468 |
|
213fdf8d31dd
did: hello world triangle, a bit of code organization
Sam <sam@basx.dev>
parents:
1
diff
changeset
|
469 var allocInfo = VkCommandBufferAllocateInfo( |
|
213fdf8d31dd
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Sam <sam@basx.dev>
parents:
1
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changeset
|
470 sType: VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, |
|
4
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Sam <sam@basx.dev>
parents:
2
diff
changeset
|
471 commandPool: result[0], |
|
2
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Sam <sam@basx.dev>
parents:
1
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|
472 level: VK_COMMAND_BUFFER_LEVEL_PRIMARY, |
|
4
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Sam <sam@basx.dev>
parents:
2
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|
473 commandBufferCount: result[1].len.uint32, |
|
2
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Sam <sam@basx.dev>
parents:
1
diff
changeset
|
474 ) |
|
4
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Sam <sam@basx.dev>
parents:
2
diff
changeset
|
475 checkVkResult device.vkAllocateCommandBuffers(addr(allocInfo), addr(result[1][0])) |
|
2
213fdf8d31dd
did: hello world triangle, a bit of code organization
Sam <sam@basx.dev>
parents:
1
diff
changeset
|
476 |
|
4
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did: refactor, add resizing, proper cleanup
Sam <sam@basx.dev>
parents:
2
diff
changeset
|
477 proc setupSyncPrimitives(device: VkDevice): ( |
|
af9183acb173
did: refactor, add resizing, proper cleanup
Sam <sam@basx.dev>
parents:
2
diff
changeset
|
478 array[MAX_FRAMES_IN_FLIGHT, VkSemaphore], |
|
af9183acb173
did: refactor, add resizing, proper cleanup
Sam <sam@basx.dev>
parents:
2
diff
changeset
|
479 array[MAX_FRAMES_IN_FLIGHT, VkSemaphore], |
|
af9183acb173
did: refactor, add resizing, proper cleanup
Sam <sam@basx.dev>
parents:
2
diff
changeset
|
480 array[MAX_FRAMES_IN_FLIGHT, VkFence], |
|
af9183acb173
did: refactor, add resizing, proper cleanup
Sam <sam@basx.dev>
parents:
2
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481 ) = |
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482 var semaphoreInfo = VkSemaphoreCreateInfo(sType: VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO) |
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483 var fenceInfo = VkFenceCreateInfo( |
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484 sType: VK_STRUCTURE_TYPE_FENCE_CREATE_INFO, |
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485 flags: VkFenceCreateFlags(VK_FENCE_CREATE_SIGNALED_BIT) |
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486 ) |
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487 for i in 0 ..< MAX_FRAMES_IN_FLIGHT: |
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488 checkVkResult device.vkCreateSemaphore(addr(semaphoreInfo), nil, addr(result[0][i])) |
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489 checkVkResult device.vkCreateSemaphore(addr(semaphoreInfo), nil, addr(result[1][i])) |
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490 checkVkResult device.vkCreateFence(addr(fenceInfo), nil, addr(result[2][i])) |
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491 |
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492 proc igniteEngine*(): Engine = |
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493 |
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494 result.window = createWindow("Hello triangle") |
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495 |
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496 # setup vulkan functions |
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497 vkLoad1_0() |
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498 vkLoad1_1() |
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499 vkLoad1_2() |
| 10 | 500 |
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501 checkGlslangResult glslang_initialize_process() |
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502 |
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503 # create vulkan instance |
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504 result.vulkan.instance = createVulkanInstance(VULKAN_VERSION) |
| 10 | 505 when DEBUG_LOG: |
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506 result.vulkan.debugMessenger = result.vulkan.instance.setupDebugLog() |
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507 result.vulkan.surface = result.vulkan.instance.createVulkanSurface(result.window) |
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508 result.vulkan.device = result.vulkan.instance.setupVulkanDeviceAndQueues(result.vulkan.surface) |
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509 |
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510 # get basic frame information |
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511 result.vulkan.surfaceFormat = result.vulkan.device.physicalDevice.formats.getSuitableSurfaceFormat() |
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512 result.vulkan.frameDimension = result.window.getFrameDimension(result.vulkan.device.physicalDevice.device, result.vulkan.surface) |
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513 |
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514 # setup swapchain and render pipeline |
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515 result.vulkan.swapchain = result.vulkan.device.device.setupSwapChain( |
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516 result.vulkan.device.physicalDevice, |
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517 result.vulkan.surface, |
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518 result.vulkan.frameDimension, |
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519 result.vulkan.surfaceFormat |
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520 ) |
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521 result.vulkan.renderPass = result.vulkan.device.device.setupRenderPass(result.vulkan.surfaceFormat.format) |
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522 result.vulkan.pipeline = result.vulkan.device.device.setupRenderPipeline(result.vulkan.frameDimension, result.vulkan.renderPass) |
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523 result.vulkan.framebuffers = result.vulkan.device.device.setupFramebuffers( |
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524 result.vulkan.swapchain, |
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525 result.vulkan.renderPass, |
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526 result.vulkan.frameDimension |
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527 ) |
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528 |
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529 ( |
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530 result.vulkan.commandPool, |
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|
531 result.vulkan.commandBuffers, |
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532 ) = result.vulkan.device.device.setupCommandBuffers(result.vulkan.device.graphicsQueueFamily) |
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533 |
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534 ( |
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535 result.vulkan.imageAvailableSemaphores, |
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536 result.vulkan.renderFinishedSemaphores, |
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537 result.vulkan.inFlightFences, |
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538 ) = result.vulkan.device.device.setupSyncPrimitives() |
| 18 | 539 result.vulkan.bufferA = result.vulkan.device.device.InitBuffer(result.vulkan.device.physicalDevice.device, uint64(sizeof(vertices[0])), VertexBuffer) |
| 540 result.vulkan.bufferB = result.vulkan.device.device.InitBuffer(result.vulkan.device.physicalDevice.device, uint64(sizeof(vertices[1])), VertexBuffer) | |
| 541 var d: pointer | |
| 542 result.vulkan.bufferA.withMapping(d): | |
| 543 copyMem(d, addr(vertices[0]), sizeof(vertices[0])) | |
| 544 result.vulkan.bufferB.withMapping(d): | |
| 545 copyMem(d, addr(vertices[1]), sizeof(vertices[1])) | |
|
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546 |
| 0 | 547 |
| 18 | 548 proc recordCommandBuffer(renderPass: VkRenderPass, pipeline: VkPipeline, commandBuffer: VkCommandBuffer, framebuffer: VkFramebuffer, frameDimension: VkExtent2D, engine: var Engine) = |
|
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549 var |
|
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550 beginInfo = VkCommandBufferBeginInfo( |
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551 sType: VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, |
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552 pInheritanceInfo: nil, |
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553 ) |
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554 clearColor = VkClearValue(color: VkClearColorValue(float32: [0.2'f, 0.2'f, 0.2'f, 1.0'f])) |
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555 renderPassInfo = VkRenderPassBeginInfo( |
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556 sType: VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO, |
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557 renderPass: renderPass, |
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558 framebuffer: framebuffer, |
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559 renderArea: VkRect2D( |
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560 offset: VkOffset2D(x: 0, y: 0), |
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561 extent: frameDimension, |
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562 ), |
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563 clearValueCount: 1, |
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564 pClearValues: addr(clearColor), |
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565 ) |
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566 viewport = VkViewport( |
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567 x: 0.0, |
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568 y: 0.0, |
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569 width: (float) frameDimension.width, |
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570 height: (float) frameDimension.height, |
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571 minDepth: 0.0, |
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572 maxDepth: 1.0, |
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573 ) |
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574 scissor = VkRect2D( |
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575 offset: VkOffset2D(x: 0, y: 0), |
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576 extent: frameDimension |
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|
577 ) |
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578 checkVkResult commandBuffer.vkBeginCommandBuffer(addr(beginInfo)) |
|
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579 commandBuffer.vkCmdBeginRenderPass(addr(renderPassInfo), VK_SUBPASS_CONTENTS_INLINE) |
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580 commandBuffer.vkCmdSetViewport(firstViewport=0, viewportCount=1, addr(viewport)) |
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|
581 commandBuffer.vkCmdSetScissor(firstScissor=0, scissorCount=1, addr(scissor)) |
| 18 | 582 commandBuffer.vkCmdBindPipeline(VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline) |
| 583 | |
| 584 var | |
| 585 vertexBuffers = [engine.vulkan.bufferA.vkBuffer, engine.vulkan.bufferB.vkBuffer] | |
| 586 offsets = [VkDeviceSize(0), VkDeviceSize(0)] | |
| 587 commandBuffer.vkCmdBindVertexBuffers(firstBinding=0'u32, bindingCount=2'u32, pBuffers=addr(vertexBuffers[0]), pOffsets=addr(offsets[0])) | |
| 588 commandBuffer.vkCmdDraw(vertexCount=uint32(vertices[0].len), instanceCount=1'u32, firstVertex=0'u32, firstInstance=0'u32) | |
|
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589 commandBuffer.vkCmdEndRenderPass() |
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590 checkVkResult commandBuffer.vkEndCommandBuffer() |
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|
591 |
| 18 | 592 proc drawFrame(window: NativeWindow, vulkan: var Vulkan, currentFrame: int, resized: bool, engine: var Engine) = |
|
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593 checkVkResult vulkan.device.device.vkWaitForFences(1, addr(vulkan.inFlightFences[currentFrame]), VK_TRUE, high(uint64)) |
|
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594 var bufferImageIndex: uint32 |
|
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595 let nextImageResult = vulkan.device.device.vkAcquireNextImageKHR( |
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596 vulkan.swapchain.swapchain, |
|
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597 high(uint64), |
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|
598 vulkan.imageAvailableSemaphores[currentFrame], |
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599 VkFence(0), |
|
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|
600 addr(bufferImageIndex) |
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|
601 ) |
|
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|
602 if nextImageResult == VK_ERROR_OUT_OF_DATE_KHR: |
|
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603 vulkan.frameDimension = window.getFrameDimension(vulkan.device.physicalDevice.device, vulkan.surface) |
|
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|
604 (vulkan.swapchain, vulkan.framebuffers) = vulkan.recreateSwapchain() |
|
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605 elif not (nextImageResult in [VK_SUCCESS, VK_SUBOPTIMAL_KHR]): |
|
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606 raise newException(Exception, "Vulkan error: vkAcquireNextImageKHR returned " & $nextImageResult) |
|
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607 checkVkResult vulkan.device.device.vkResetFences(1, addr(vulkan.inFlightFences[currentFrame])) |
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608 |
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609 checkVkResult vulkan.commandBuffers[currentFrame].vkResetCommandBuffer(VkCommandBufferResetFlags(0)) |
| 18 | 610 vulkan.renderPass.recordCommandBuffer(vulkan.pipeline.pipeline, vulkan.commandBuffers[currentFrame], vulkan.framebuffers[bufferImageIndex], vulkan.frameDimension, engine) |
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611 var |
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612 waitSemaphores = [vulkan.imageAvailableSemaphores[currentFrame]] |
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613 waitStages = [VkPipelineStageFlags(VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT)] |
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614 signalSemaphores = [vulkan.renderFinishedSemaphores[currentFrame]] |
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615 submitInfo = VkSubmitInfo( |
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616 sType: VK_STRUCTURE_TYPE_SUBMIT_INFO, |
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617 waitSemaphoreCount: 1, |
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618 pWaitSemaphores: addr(waitSemaphores[0]), |
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619 pWaitDstStageMask: addr(waitStages[0]), |
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620 commandBufferCount: 1, |
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621 pCommandBuffers: addr(vulkan.commandBuffers[currentFrame]), |
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622 signalSemaphoreCount: 1, |
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623 pSignalSemaphores: addr(signalSemaphores[0]), |
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624 ) |
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625 checkVkResult vkQueueSubmit(vulkan.device.graphicsQueue, 1, addr(submitInfo), vulkan.inFlightFences[currentFrame]) |
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626 |
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627 var presentInfo = VkPresentInfoKHR( |
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628 sType: VK_STRUCTURE_TYPE_PRESENT_INFO_KHR, |
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629 waitSemaphoreCount: 1, |
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630 pWaitSemaphores: addr(signalSemaphores[0]), |
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631 swapchainCount: 1, |
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632 pSwapchains: addr(vulkan.swapchain.swapchain), |
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633 pImageIndices: addr(bufferImageIndex), |
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634 pResults: nil, |
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635 ) |
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636 let presentResult = vkQueuePresentKHR(vulkan.device.presentationQueue, addr(presentInfo)) |
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637 |
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638 if presentResult == VK_ERROR_OUT_OF_DATE_KHR or presentResult == VK_SUBOPTIMAL_KHR or resized: |
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639 vulkan.frameDimension = window.getFrameDimension(vulkan.device.physicalDevice.device, vulkan.surface) |
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640 (vulkan.swapchain, vulkan.framebuffers) = vulkan.recreateSwapchain() |
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641 |
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642 |
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643 proc fullThrottle*(engine: var Engine) = |
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644 var |
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645 killed = false |
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646 currentFrame = 0 |
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647 resized = false |
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648 |
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649 while not killed: |
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650 for event in engine.window.pendingEvents(): |
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651 case event.eventType: |
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652 of Quit: |
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653 killed = true |
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654 of ResizedWindow: |
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655 resized = true |
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656 of KeyDown: |
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657 echo event |
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658 if event.key == Escape: |
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659 killed = true |
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660 else: |
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661 discard |
| 18 | 662 engine.window.drawFrame(engine.vulkan, currentFrame, resized, engine) |
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663 resized = false |
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664 currentFrame = (currentFrame + 1) mod MAX_FRAMES_IN_FLIGHT; |
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665 checkVkResult engine.vulkan.device.device.vkDeviceWaitIdle() |
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666 |
| 18 | 667 proc trash*(engine: var Engine) = |
| 668 `=destroy` engine.vulkan.bufferA | |
| 669 `=destroy` engine.vulkan.bufferB | |
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670 engine.vulkan.device.device.trash(engine.vulkan.swapchain, engine.vulkan.framebuffers) |
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671 checkVkResult engine.vulkan.device.device.vkDeviceWaitIdle() |
| 0 | 672 |
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673 for i in 0 ..< MAX_FRAMES_IN_FLIGHT: |
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674 engine.vulkan.device.device.vkDestroySemaphore(engine.vulkan.imageAvailableSemaphores[i], nil) |
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675 engine.vulkan.device.device.vkDestroySemaphore(engine.vulkan.renderFinishedSemaphores[i], nil) |
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676 engine.vulkan.device.device.vkDestroyFence(engine.vulkan.inFlightFences[i], nil) |
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677 |
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678 engine.vulkan.device.device.vkDestroyCommandPool(engine.vulkan.commandPool, nil) |
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679 engine.vulkan.device.device.vkDestroyPipeline(engine.vulkan.pipeline.pipeline, nil) |
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680 engine.vulkan.device.device.vkDestroyPipelineLayout(engine.vulkan.pipeline.layout, nil) |
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681 engine.vulkan.device.device.vkDestroyRenderPass(engine.vulkan.renderPass, nil) |
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|
682 |
| 17 | 683 for shader in engine.vulkan.pipeline.shaders: |
| 684 engine.vulkan.device.device.vkDestroyShaderModule(shader.shader.module, nil) | |
|
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|
685 |
|
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|
686 engine.vulkan.instance.vkDestroySurfaceKHR(engine.vulkan.surface, nil) |
|
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687 engine.vulkan.device.device.vkDestroyDevice(nil) |
| 10 | 688 when DEBUG_LOG: |
|
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689 engine.vulkan.instance.vkDestroyDebugUtilsMessengerEXT(engine.vulkan.debugMessenger, nil) |
|
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690 glslang_finalize_process() |
| 9 | 691 engine.window.trash() |
|
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692 engine.vulkan.instance.vkDestroyInstance(nil) |