Mercurial > games > semicongine
annotate semicongine/rendering.nim @ 1298:1feaa8a97acf
did: halfway complete refactoring to move from all-include to some-include+imports, no API changes
| author | sam <sam@basx.dev> |
|---|---|
| date | Tue, 06 Aug 2024 17:31:13 +0700 |
| parents | 0369fa1ffbd9 |
| children | 6d0162bfe48a |
| rev | line source |
|---|---|
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1 import std/enumerate |
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2 import std/hashes |
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3 import std/macros |
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4 import std/os |
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5 import std/sequtils |
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6 import std/strutils |
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7 import std/typetraits |
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8 |
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9 import ./rendering/vulkan/api |
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10 |
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11 import ./image |
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12 |
| 1192 | 13 # in this file: |
| 14 # - const defintions for rendering | |
| 15 # - custom pragma defintions for rendering | |
| 16 # - type defintions for rendering | |
| 17 # - some utils code that is used in mutiple rendering files | |
| 18 # - inclusion of all rendering files | |
| 19 | |
| 20 | |
| 21 # const definitions | |
| 1197 | 22 const INFLIGHTFRAMES* = 2'u32 |
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23 const BUFFER_ALIGNMENT = 64'u64 # align offsets inside buffers along this alignment |
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24 const MEMORY_BLOCK_ALLOCATION_SIZE = 100_000_000'u64 # ca. 100mb per block, seems reasonable |
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25 const BUFFER_ALLOCATION_SIZE = 9_000_000'u64 # ca. 9mb per block, seems reasonable, can put 10 buffers into one memory block |
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26 const MAX_DESCRIPTORSETS = 4 |
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27 const SURFACE_FORMAT* = VK_FORMAT_B8G8R8A8_SRGB |
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28 const DEPTH_FORMAT* = VK_FORMAT_D32_SFLOAT |
| 1253 | 29 const PUSH_CONSTANT_SIZE = 128 |
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30 |
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31 # custom pragmas to classify shader attributes |
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32 template VertexAttribute* {.pragma.} |
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33 template InstanceAttribute* {.pragma.} |
| 1252 | 34 template PushConstantAttribute* {.pragma.} |
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35 template Pass* {.pragma.} |
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36 template PassFlat* {.pragma.} |
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37 template ShaderOutput* {.pragma.} |
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38 template DescriptorSets* {.pragma.} |
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39 |
| 1193 | 40 # there is a big, bad global vulkan object |
| 41 # believe me, this makes everything much, much easier | |
| 42 | |
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43 when defined(windows): |
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44 include ./rendering/platform/windows |
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45 when defined(linux): |
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46 include ./rendering/platform/linux |
| 1193 | 47 |
| 48 type | |
| 49 VulkanGlobals* = object | |
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50 # populated through InitVulkan proc |
| 1193 | 51 instance*: VkInstance |
| 52 device*: VkDevice | |
| 53 physicalDevice*: VkPhysicalDevice | |
| 54 surface: VkSurfaceKHR | |
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55 window*: NativeWindow |
| 1193 | 56 graphicsQueueFamily*: uint32 |
| 57 graphicsQueue*: VkQueue | |
| 1199 | 58 debugMessenger: VkDebugUtilsMessengerEXT |
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59 # populated through the initSwapchain proc |
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60 swapchain*: Swapchain |
| 1197 | 61 # unclear as of yet |
| 62 anisotropy*: float32 = 0 # needs to be enable during device creation | |
| 1277 | 63 RenderPass* = ref object |
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64 vk*: VkRenderPass |
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65 samples*: VkSampleCountFlagBits |
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66 depthBuffer*: bool |
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67 Swapchain* = ref object |
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68 # parameters to initSwapchain, required for swapchain recreation |
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69 renderPass*: RenderPass |
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70 vSync: bool |
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71 # populated through initSwapchain proc |
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72 vk: VkSwapchainKHR |
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73 width*: uint32 |
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74 height*: uint32 |
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75 framebuffers: seq[VkFramebuffer] |
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76 framebufferViews: seq[VkImageView] |
| 1198 | 77 currentFramebufferIndex: uint32 |
| 78 commandBufferPool: VkCommandPool | |
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79 # depth buffer stuff, if enabled |
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80 depthImage: VkImage |
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81 depthImageView*: VkImageView |
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82 depthMemory: VkDeviceMemory |
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83 # MSAA stuff, if enabled |
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84 msaaImage: VkImage |
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85 msaaImageView*: VkImageView |
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86 msaaMemory: VkDeviceMemory |
| 1198 | 87 # frame-in-flight handling |
| 88 currentFiF: range[0 .. (INFLIGHTFRAMES - 1).int] | |
| 1197 | 89 queueFinishedFence*: array[INFLIGHTFRAMES.int, VkFence] |
| 90 imageAvailableSemaphore*: array[INFLIGHTFRAMES.int, VkSemaphore] | |
| 91 renderFinishedSemaphore*: array[INFLIGHTFRAMES.int, VkSemaphore] | |
| 1198 | 92 commandBuffers: array[INFLIGHTFRAMES.int, VkCommandBuffer] |
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93 oldSwapchain: Swapchain |
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94 oldSwapchainCounter: int # swaps until old swapchain will be destroyed |
| 1193 | 95 |
| 96 var vulkan*: VulkanGlobals | |
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97 var fullscreen_internal: bool |
| 1193 | 98 |
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99 type |
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100 # type aliases |
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101 SupportedGPUType = float32 | float64 | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | TVec2[int32] | TVec2[int64] | TVec3[int32] | TVec3[int64] | TVec4[int32] | TVec4[int64] | TVec2[uint32] | TVec2[uint64] | TVec3[uint32] | TVec3[uint64] | TVec4[uint32] | TVec4[uint64] | TVec2[float32] | TVec2[float64] | TVec3[float32] | TVec3[float64] | TVec4[float32] | TVec4[float64] | TMat2[float32] | TMat2[float64] | TMat23[float32] | TMat23[float64] | TMat32[float32] | TMat32[float64] | TMat3[float32] | TMat3[float64] | TMat34[float32] | TMat34[float64] | TMat43[float32] | TMat43[float64] | TMat4[float32] | TMat4[float64] |
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102 |
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103 # shader related types |
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104 DescriptorSet*[T: object] = object |
| 1192 | 105 data*: T |
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106 vk: array[INFLIGHTFRAMES.int, VkDescriptorSet] |
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107 Pipeline*[TShader] = object |
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108 vk: VkPipeline |
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109 vertexShaderModule: VkShaderModule |
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110 fragmentShaderModule: VkShaderModule |
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111 layout: VkPipelineLayout |
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112 descriptorSetLayouts*: array[MAX_DESCRIPTORSETS, VkDescriptorSetLayout] |
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113 |
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114 # memory/buffer related types |
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115 MemoryBlock* = object |
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116 vk: VkDeviceMemory |
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117 size: uint64 |
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118 rawPointer: pointer # if not nil, this is mapped memory |
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119 offsetNextFree: uint64 |
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120 BufferType* = enum |
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121 VertexBuffer |
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122 VertexBufferMapped |
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123 IndexBuffer |
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124 IndexBufferMapped |
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125 UniformBuffer |
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126 UniformBufferMapped |
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127 Buffer* = object |
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128 vk: VkBuffer |
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129 size: uint64 |
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130 rawPointer: pointer # if not nil, buffer is using mapped memory |
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131 offsetNextFree: uint64 |
| 1231 | 132 memoryOffset: uint64 |
| 133 memory: VkDeviceMemory | |
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134 GPUArray*[T: SupportedGPUType, TBuffer: static BufferType] = object |
| 1192 | 135 data*: seq[T] |
| 1202 | 136 buffer*: Buffer |
| 137 offset*: uint64 | |
| 1210 | 138 GPUValue*[T: object, TBuffer: static BufferType] = object |
| 1192 | 139 data*: T |
| 1231 | 140 buffer*: Buffer |
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141 offset: uint64 |
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142 GPUData = GPUArray | GPUValue |
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143 |
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144 RenderData* = object |
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145 descriptorPool: VkDescriptorPool |
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146 memory: array[VK_MAX_MEMORY_TYPES.int, seq[MemoryBlock]] |
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147 buffers: array[BufferType, seq[Buffer]] |
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148 images: seq[VkImage] |
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149 imageViews: seq[VkImageView] |
| 1201 | 150 samplers: seq[VkSampler] |
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151 |
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152 template forDescriptorFields(shader: typed, fieldname, valuename, typename, countname, bindingNumber, body: untyped): untyped = |
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153 var `bindingNumber` {.inject.} = 0'u32 |
| 1192 | 154 for theFieldname, value in fieldPairs(shader): |
| 1228 | 155 when typeof(value) is Image: |
| 1192 | 156 block: |
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157 const `fieldname` {.inject, hint[XDeclaredButNotUsed]: off.} = theFieldname |
| 1192 | 158 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER |
| 159 const `countname` {.inject.} = 1'u32 | |
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160 let `valuename` {.inject, hint[XDeclaredButNotUsed]: off.} = value |
| 1192 | 161 body |
| 162 `bindingNumber`.inc | |
| 1210 | 163 elif typeof(value) is GPUValue: |
| 1192 | 164 block: |
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165 const `fieldname` {.inject, hint[XDeclaredButNotUsed]: off.} = theFieldname |
| 1192 | 166 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER |
| 167 const `countname` {.inject.} = 1'u32 | |
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168 let `valuename` {.inject, hint[XDeclaredButNotUsed]: off.} = value |
| 1192 | 169 body |
| 170 `bindingNumber`.inc | |
| 171 elif typeof(value) is array: | |
| 1228 | 172 when elementType(value) is Image: |
| 1192 | 173 block: |
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174 const `fieldname` {.inject, hint[XDeclaredButNotUsed]: off.} = theFieldname |
| 1192 | 175 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER |
| 176 const `countname` {.inject.} = uint32(typeof(value).len) | |
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177 let `valuename` {.inject, hint[XDeclaredButNotUsed]: off.} = value |
| 1192 | 178 body |
| 179 `bindingNumber`.inc | |
| 1210 | 180 elif elementType(value) is GPUValue: |
| 1192 | 181 block: |
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182 const `fieldname` {.inject, hint[XDeclaredButNotUsed]: off.} = theFieldname |
| 1192 | 183 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER |
| 1210 | 184 const `countname` {.inject.} = len(value).uint32 |
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185 let `valuename` {.inject hint[XDeclaredButNotUsed]: off.} = value |
| 1192 | 186 body |
| 187 `bindingNumber`.inc | |
| 188 else: | |
| 189 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 1210 | 190 else: |
| 191 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 1192 | 192 |
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193 include ./rendering/vulkan_wrappers |
| 1199 | 194 include ./rendering/renderpasses |
| 1194 | 195 include ./rendering/swapchain |
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196 include ./rendering/shaders |
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197 include ./rendering/renderer |
| 1193 | 198 |
| 1199 | 199 proc debugCallback( |
| 200 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT, | |
| 201 messageTypes: VkDebugUtilsMessageTypeFlagsEXT, | |
| 202 pCallbackData: ptr VkDebugUtilsMessengerCallbackDataEXT, | |
| 203 userData: pointer | |
| 204 ): VkBool32 {.cdecl.} = | |
| 205 const LOG_LEVEL_MAPPING = { | |
| 206 VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT: lvlDebug, | |
| 207 VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT: lvlInfo, | |
| 208 VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT: lvlWarn, | |
| 209 VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: lvlError, | |
| 210 }.toTable | |
| 211 log LOG_LEVEL_MAPPING[messageSeverity], &"{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 212 if messageSeverity == VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: | |
| 213 stderr.writeLine "-----------------------------------" | |
| 214 stderr.write getStackTrace() | |
| 215 stderr.writeLine LOG_LEVEL_MAPPING[messageSeverity], &"{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 216 stderr.writeLine "-----------------------------------" | |
| 217 let errorMsg = getStackTrace() & &"\n{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 218 raise newException(Exception, errorMsg) | |
| 219 return false | |
| 1193 | 220 |
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221 proc initVulkan*(appName: string = "semicongine app") = |
| 1193 | 222 |
| 223 # instance creation | |
| 1198 | 224 |
| 225 # enagle all kind of debug stuff | |
| 1193 | 226 when not defined(release): |
| 227 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface", "VK_EXT_debug_utils"] | |
| 228 let layers: seq[string] = if hasValidationLayer(): @["VK_LAYER_KHRONOS_validation"] else: @[] | |
| 1198 | 229 putEnv("VK_LAYER_ENABLES", "VALIDATION_CHECK_ENABLE_VENDOR_SPECIFIC_AMD,VALIDATION_CHECK_ENABLE_VENDOR_SPECIFIC_NVIDIA,VK_VALIDATION_FEATURE_ENABLE_SYNCHRONIZATION_VALIDATION_EXTVK_VALIDATION_FEATURE_ENABLE_GPU_ASSISTED_EXT,VK_VALIDATION_FEATURE_ENABLE_SYNCHRONIZATION_VALIDATION_EXT") |
| 1193 | 230 else: |
| 231 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface"] | |
| 232 let layers: seq[string] | |
| 233 | |
| 234 var | |
| 235 layersC = allocCStringArray(layers) | |
| 236 instanceExtensionsC = allocCStringArray(requiredExtensions) | |
| 237 defer: | |
| 238 deallocCStringArray(layersC) | |
| 239 deallocCStringArray(instanceExtensionsC) | |
| 240 | |
| 241 var | |
| 242 appinfo = VkApplicationInfo( | |
| 243 sType: VK_STRUCTURE_TYPE_APPLICATION_INFO, | |
| 244 pApplicationName: appName, | |
| 245 pEngineName: "semicongine", | |
| 246 apiVersion: VK_MAKE_API_VERSION(0, 1, 3, 0), | |
| 247 ) | |
| 248 createinfo = VkInstanceCreateInfo( | |
| 249 sType: VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO, | |
| 250 pApplicationInfo: addr(appinfo), | |
| 251 enabledLayerCount: layers.len.uint32, | |
| 252 ppEnabledLayerNames: layersC, | |
| 253 enabledExtensionCount: requiredExtensions.len.uint32, | |
| 254 ppEnabledExtensionNames: instanceExtensionsC | |
| 255 ) | |
| 1204 | 256 checkVkResult vkCreateInstance(addr(createinfo), nil, addr(vulkan.instance)) |
| 257 loadVulkan(vulkan.instance) | |
| 1193 | 258 |
| 259 # load extensions | |
| 260 # | |
| 261 for extension in requiredExtensions: | |
| 1204 | 262 loadExtension(vulkan.instance, $extension) |
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263 vulkan.window = createWindow(appName) |
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264 vulkan.surface = createNativeSurface(vulkan.instance, vulkan.window) |
| 1193 | 265 |
| 266 # logical device creation | |
| 267 | |
| 268 # TODO: allowing support for physical devices without hasUniformBufferStandardLayout | |
| 269 # would require us to ship different shaders, so we don't support standard layout | |
| 270 # if that will be added, check the function vulkan/shaders.nim:glslUniforms and update accordingly | |
| 271 # let hasUniformBufferStandardLayout = "VK_KHR_uniform_buffer_standard_layout" in physicalDevice.getExtensions() | |
| 272 # var deviceExtensions = @["VK_KHR_swapchain", "VK_KHR_uniform_buffer_standard_layout"] | |
| 273 var deviceExtensions = @["VK_KHR_swapchain"] | |
| 274 for extension in deviceExtensions: | |
| 1204 | 275 loadExtension(vulkan.instance, extension) |
| 1193 | 276 |
| 1199 | 277 when not defined(release): |
| 278 var debugMessengerCreateInfo = VkDebugUtilsMessengerCreateInfoEXT( | |
| 279 sType: VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT, | |
| 280 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT.items.toSeq.toBits, | |
| 281 messageType: VkDebugUtilsMessageTypeFlagBitsEXT.items.toSeq.toBits, | |
| 282 pfnUserCallback: debugCallback, | |
| 283 pUserData: nil, | |
| 284 ) | |
| 285 checkVkResult vkCreateDebugUtilsMessengerEXT( | |
| 1204 | 286 vulkan.instance, |
| 1199 | 287 addr(debugMessengerCreateInfo), |
| 288 nil, | |
| 1204 | 289 addr(vulkan.debugMessenger) |
| 1199 | 290 ) |
| 291 | |
| 1193 | 292 # get physical device and graphics queue family |
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293 vulkan.physicalDevice = getBestPhysicalDevice(vulkan.instance) |
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294 vulkan.graphicsQueueFamily = getQueueFamily(vulkan.physicalDevice, VK_QUEUE_GRAPHICS_BIT) |
| 1193 | 295 |
| 296 let | |
| 297 priority = cfloat(1) | |
| 298 queueInfo = VkDeviceQueueCreateInfo( | |
| 299 sType: VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, | |
| 1204 | 300 queueFamilyIndex: vulkan.graphicsQueueFamily, |
| 1193 | 301 queueCount: 1, |
| 302 pQueuePriorities: addr(priority), | |
| 303 ) | |
| 304 deviceExtensionsC = allocCStringArray(deviceExtensions) | |
| 305 defer: deallocCStringArray(deviceExtensionsC) | |
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306 let enabledFeatures = VkPhysicalDeviceFeatures( |
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307 fillModeNonSolid: true, |
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308 depthClamp: true, |
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309 wideLines: true, |
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310 largePoints: true, |
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311 ) |
| 1193 | 312 var createDeviceInfo = VkDeviceCreateInfo( |
| 313 sType: VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, | |
| 314 queueCreateInfoCount: 1, | |
| 315 pQueueCreateInfos: addr(queueInfo), | |
| 316 enabledLayerCount: 0, | |
| 317 ppEnabledLayerNames: nil, | |
| 318 enabledExtensionCount: uint32(deviceExtensions.len), | |
| 319 ppEnabledExtensionNames: deviceExtensionsC, | |
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320 pEnabledFeatures: addr(enabledFeatures), |
| 1193 | 321 ) |
| 322 checkVkResult vkCreateDevice( | |
| 1204 | 323 physicalDevice = vulkan.physicalDevice, |
| 1193 | 324 pCreateInfo = addr createDeviceInfo, |
| 325 pAllocator = nil, | |
| 1204 | 326 pDevice = addr vulkan.device |
| 1193 | 327 ) |
| 1204 | 328 vulkan.graphicsQueue = svkGetDeviceQueue(vulkan.device, vulkan.graphicsQueueFamily, VK_QUEUE_GRAPHICS_BIT) |
| 1193 | 329 |
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330 proc clearSwapchain*() = |
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331 assert vulkan.swapchain != nil, "Swapchain has not been initialized yet" |
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332 destroySwapchain(vulkan.swapchain) |
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333 vulkan.swapchain = nil |
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334 |
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335 proc setupSwapchain*(renderPass: RenderPass, vSync: bool = false) = |
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336 assert vulkan.swapchain == nil, "Swapchain has already been initialized yet" |
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337 vulkan.swapchain = initSwapchain(renderPass, vSync = vSync) |
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338 |
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339 proc destroyVulkan*() = |
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340 if vulkan.swapchain != nil: |
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341 destroySwapchain(vulkan.swapchain) |
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342 vkDestroyDevice(vulkan.device, nil) |
| 1201 | 343 vkDestroySurfaceKHR(vulkan.instance, vulkan.surface, nil) |
| 344 vkDestroyDebugUtilsMessengerEXT(vulkan.instance, vulkan.debugMessenger, nil) | |
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345 vkDestroyInstance(vulkan.instance, nil) |
| 1226 | 346 |
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347 proc showSystemCursor*(value: bool) = vulkan.window.showSystemCursor(value) |
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348 proc fullscreen*(): bool = fullscreen_internal |
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349 proc setFullscreen*(enable: bool) = |
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350 if enable != fullscreen_internal: |
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351 fullscreen_internal = enable |
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352 vulkan.window.setFullscreen(fullscreen_internal) |
| 1226 | 353 |
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354 proc getAspectRatio*(): float32 = |
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355 assert vulkan.swapchain != nil, "Swapchain has not been initialized yet" |
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356 vulkan.swapchain.width.float32 / vulkan.swapchain.height.float32 |
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357 |
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358 proc currentFiF*(): int = |
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359 assert vulkan.swapchain != nil, "Swapchain has not been initialized yet" |
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360 vulkan.swapchain.currentFiF |
| 1226 | 361 |
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362 proc maxFramebufferSampleCount*(maxSamples = VK_SAMPLE_COUNT_8_BIT): VkSampleCountFlagBits = |
| 1226 | 363 let limits = svkGetPhysicalDeviceProperties().limits |
| 364 let available = VkSampleCountFlags( | |
| 365 limits.framebufferColorSampleCounts.uint32 and limits.framebufferDepthSampleCounts.uint32 | |
| 366 ).toEnums | |
| 367 return min(max(available), maxSamples) | |
| 368 | |
| 369 | |
| 1228 | 370 proc `[]`*(image: Image, x, y: uint32): auto = |
| 371 assert x < image.width, &"{x} < {image.width} is not true" | |
| 372 assert y < image.height, &"{y} < {image.height} is not true" | |
| 1226 | 373 |
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374 image.data[y * image.width + x] |
| 1226 | 375 |
| 1228 | 376 proc `[]=`*[T](image: var Image[T], x, y: uint32, value: T) = |
| 377 assert x < image.width | |
| 378 assert y < image.height | |
| 1226 | 379 |
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380 image.data[y * image.width + x] = value |