Mercurial > games > semicongine
annotate semiconginev2/rendering.nim @ 1220:59e683c4728f compiletime-tests
del: outdated examples
| author | sam <sam@basx.dev> |
|---|---|
| date | Wed, 17 Jul 2024 21:04:09 +0700 |
| parents | 56781cc0fc7c |
| children | a3fa15c25026 |
| rev | line source |
|---|---|
| 1192 | 1 # in this file: |
| 2 # - const defintions for rendering | |
| 3 # - custom pragma defintions for rendering | |
| 4 # - type defintions for rendering | |
| 5 # - some utils code that is used in mutiple rendering files | |
| 6 # - inclusion of all rendering files | |
| 7 | |
| 8 | |
| 9 # const definitions | |
| 1197 | 10 const INFLIGHTFRAMES* = 2'u32 |
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11 const BUFFER_ALIGNMENT = 64'u64 # align offsets inside buffers along this alignment |
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12 const MEMORY_BLOCK_ALLOCATION_SIZE = 100_000_000'u64 # ca. 100mb per block, seems reasonable |
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13 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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14 const MAX_DESCRIPTORSETS = 4 |
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15 |
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16 # custom pragmas to classify shader attributes |
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17 template VertexAttribute* {.pragma.} |
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18 template InstanceAttribute* {.pragma.} |
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19 template Pass* {.pragma.} |
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20 template PassFlat* {.pragma.} |
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21 template ShaderOutput* {.pragma.} |
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22 template DescriptorSets* {.pragma.} |
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23 |
| 1193 | 24 # there is a big, bad global vulkan object |
| 25 # believe me, this makes everything much, much easier | |
| 26 | |
| 27 include ./platform/window # for NativeWindow | |
| 28 include ./platform/surface # For CreateNativeSurface | |
| 29 | |
| 30 type | |
| 31 VulkanGlobals* = object | |
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32 # populated through InitVulkan proc |
| 1193 | 33 instance*: VkInstance |
| 34 device*: VkDevice | |
| 35 physicalDevice*: VkPhysicalDevice | |
| 36 surface: VkSurfaceKHR | |
| 37 window: NativeWindow | |
| 38 graphicsQueueFamily*: uint32 | |
| 39 graphicsQueue*: VkQueue | |
| 1199 | 40 debugMessenger: VkDebugUtilsMessengerEXT |
| 1197 | 41 # unclear as of yet |
| 42 anisotropy*: float32 = 0 # needs to be enable during device creation | |
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43 Swapchain* = object |
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44 # parameters to InitSwapchain, required for swapchain recreation |
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45 renderPass: VkRenderPass |
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46 vSync: bool |
| 1204 | 47 samples*: VkSampleCountFlagBits |
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48 # populated through InitSwapchain proc |
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49 vk: VkSwapchainKHR |
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50 width*: uint32 |
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51 height*: uint32 |
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52 msaaImage: VkImage |
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53 msaaMemory: VkDeviceMemory |
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54 msaaImageView: VkImageView |
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55 framebuffers: seq[VkFramebuffer] |
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56 framebufferViews: seq[VkImageView] |
| 1198 | 57 currentFramebufferIndex: uint32 |
| 58 commandBufferPool: VkCommandPool | |
| 59 # frame-in-flight handling | |
| 60 currentFiF: range[0 .. (INFLIGHTFRAMES - 1).int] | |
| 1197 | 61 queueFinishedFence*: array[INFLIGHTFRAMES.int, VkFence] |
| 62 imageAvailableSemaphore*: array[INFLIGHTFRAMES.int, VkSemaphore] | |
| 63 renderFinishedSemaphore*: array[INFLIGHTFRAMES.int, VkSemaphore] | |
| 1198 | 64 commandBuffers: array[INFLIGHTFRAMES.int, VkCommandBuffer] |
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65 oldSwapchain: ref Swapchain |
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66 oldSwapchainCounter: int # swaps until old swapchain will be destroyed |
| 1193 | 67 |
| 68 var vulkan*: VulkanGlobals | |
| 69 | |
| 1202 | 70 func currentFiF*(swapchain: Swapchain): int = swapchain.currentFiF |
| 71 | |
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72 type |
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73 # type aliases |
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74 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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75 TextureType = TVec1[uint8] | TVec4[uint8] |
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76 |
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77 # shader related types |
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78 DescriptorSet*[T: object] = object |
| 1192 | 79 data*: T |
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80 vk: array[INFLIGHTFRAMES.int, VkDescriptorSet] |
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81 Pipeline*[TShader] = object |
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82 vk: VkPipeline |
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83 vertexShaderModule: VkShaderModule |
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84 fragmentShaderModule: VkShaderModule |
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85 layout: VkPipelineLayout |
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86 descriptorSetLayouts*: array[MAX_DESCRIPTORSETS, VkDescriptorSetLayout] |
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87 |
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88 # memory/buffer related types |
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89 MemoryBlock* = object |
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90 vk: VkDeviceMemory |
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91 size: uint64 |
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92 rawPointer: pointer # if not nil, this is mapped memory |
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93 offsetNextFree: uint64 |
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94 BufferType* = enum |
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95 VertexBuffer |
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96 VertexBufferMapped |
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97 IndexBuffer |
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98 IndexBufferMapped |
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99 UniformBuffer |
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100 UniformBufferMapped |
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101 Buffer* = object |
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102 vk: VkBuffer |
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103 size: uint64 |
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104 rawPointer: pointer # if not nil, buffer is using mapped memory |
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105 offsetNextFree: uint64 |
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106 Texture*[T: TextureType] = object |
| 1210 | 107 width*: uint32 |
| 108 height*: uint32 | |
| 109 interpolation*: VkFilter = VK_FILTER_LINEAR | |
| 110 data*: seq[T] | |
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111 vk*: VkImage |
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112 imageview*: VkImageView |
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113 sampler*: VkSampler |
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114 isRenderTarget*: bool = false |
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115 GPUArray*[T: SupportedGPUType, TBuffer: static BufferType] = object |
| 1192 | 116 data*: seq[T] |
| 1202 | 117 buffer*: Buffer |
| 118 offset*: uint64 | |
| 1210 | 119 GPUValue*[T: object, TBuffer: static BufferType] = object |
| 1192 | 120 data*: T |
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121 buffer: Buffer |
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122 offset: uint64 |
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123 GPUData = GPUArray | GPUValue |
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124 |
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125 RenderData* = object |
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126 descriptorPool: VkDescriptorPool |
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127 memory: array[VK_MAX_MEMORY_TYPES.int, seq[MemoryBlock]] |
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128 buffers: array[BufferType, seq[Buffer]] |
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129 images: seq[VkImage] |
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130 imageViews: seq[VkImageView] |
| 1201 | 131 samplers: seq[VkSampler] |
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132 |
| 1192 | 133 template ForDescriptorFields(shader: typed, fieldname, valuename, typename, countname, bindingNumber, body: untyped): untyped = |
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134 var `bindingNumber` {.inject.} = 0'u32 |
| 1192 | 135 for theFieldname, value in fieldPairs(shader): |
| 136 when typeof(value) is Texture: | |
| 137 block: | |
| 138 const `fieldname` {.inject.} = theFieldname | |
| 139 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER | |
| 140 const `countname` {.inject.} = 1'u32 | |
| 141 let `valuename` {.inject.} = value | |
| 142 body | |
| 143 `bindingNumber`.inc | |
| 1210 | 144 elif typeof(value) is GPUValue: |
| 1192 | 145 block: |
| 146 const `fieldname` {.inject.} = theFieldname | |
| 147 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER | |
| 148 const `countname` {.inject.} = 1'u32 | |
| 149 let `valuename` {.inject.} = value | |
| 150 body | |
| 151 `bindingNumber`.inc | |
| 152 elif typeof(value) is array: | |
| 153 when elementType(value) is Texture: | |
| 154 block: | |
| 155 const `fieldname` {.inject.} = theFieldname | |
| 156 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER | |
| 157 const `countname` {.inject.} = uint32(typeof(value).len) | |
| 158 let `valuename` {.inject.} = value | |
| 159 body | |
| 160 `bindingNumber`.inc | |
| 1210 | 161 elif elementType(value) is GPUValue: |
| 1192 | 162 block: |
| 163 const `fieldname` {.inject.} = theFieldname | |
| 164 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER | |
| 1210 | 165 const `countname` {.inject.} = len(value).uint32 |
| 1192 | 166 let `valuename` {.inject.} = value |
| 167 body | |
| 168 `bindingNumber`.inc | |
| 169 else: | |
| 170 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 1210 | 171 else: |
| 172 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 1192 | 173 |
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174 include ./rendering/vulkan_wrappers |
| 1199 | 175 include ./rendering/renderpasses |
| 1194 | 176 include ./rendering/swapchain |
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177 include ./rendering/shaders |
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178 include ./rendering/renderer |
| 1193 | 179 |
| 1199 | 180 proc debugCallback( |
| 181 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT, | |
| 182 messageTypes: VkDebugUtilsMessageTypeFlagsEXT, | |
| 183 pCallbackData: ptr VkDebugUtilsMessengerCallbackDataEXT, | |
| 184 userData: pointer | |
| 185 ): VkBool32 {.cdecl.} = | |
| 186 const LOG_LEVEL_MAPPING = { | |
| 187 VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT: lvlDebug, | |
| 188 VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT: lvlInfo, | |
| 189 VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT: lvlWarn, | |
| 190 VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: lvlError, | |
| 191 }.toTable | |
| 192 log LOG_LEVEL_MAPPING[messageSeverity], &"{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 193 if messageSeverity == VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: | |
| 194 stderr.writeLine "-----------------------------------" | |
| 195 stderr.write getStackTrace() | |
| 196 stderr.writeLine LOG_LEVEL_MAPPING[messageSeverity], &"{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 197 stderr.writeLine "-----------------------------------" | |
| 198 let errorMsg = getStackTrace() & &"\n{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 199 raise newException(Exception, errorMsg) | |
| 200 return false | |
| 1193 | 201 |
| 1204 | 202 proc InitVulkan*(appName: string = "semicongine app") = |
| 1193 | 203 |
| 204 include ./platform/vulkan_extensions # for REQUIRED_PLATFORM_EXTENSIONS | |
| 205 | |
| 206 # instance creation | |
| 1198 | 207 |
| 208 # enagle all kind of debug stuff | |
| 1193 | 209 when not defined(release): |
| 210 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface", "VK_EXT_debug_utils"] | |
| 211 let layers: seq[string] = if hasValidationLayer(): @["VK_LAYER_KHRONOS_validation"] else: @[] | |
| 1198 | 212 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 | 213 else: |
| 214 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface"] | |
| 215 let layers: seq[string] | |
| 216 | |
| 217 var | |
| 218 layersC = allocCStringArray(layers) | |
| 219 instanceExtensionsC = allocCStringArray(requiredExtensions) | |
| 220 defer: | |
| 221 deallocCStringArray(layersC) | |
| 222 deallocCStringArray(instanceExtensionsC) | |
| 223 | |
| 224 var | |
| 225 appinfo = VkApplicationInfo( | |
| 226 sType: VK_STRUCTURE_TYPE_APPLICATION_INFO, | |
| 227 pApplicationName: appName, | |
| 228 pEngineName: "semicongine", | |
| 229 apiVersion: VK_MAKE_API_VERSION(0, 1, 3, 0), | |
| 230 ) | |
| 231 createinfo = VkInstanceCreateInfo( | |
| 232 sType: VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO, | |
| 233 pApplicationInfo: addr(appinfo), | |
| 234 enabledLayerCount: layers.len.uint32, | |
| 235 ppEnabledLayerNames: layersC, | |
| 236 enabledExtensionCount: requiredExtensions.len.uint32, | |
| 237 ppEnabledExtensionNames: instanceExtensionsC | |
| 238 ) | |
| 1204 | 239 checkVkResult vkCreateInstance(addr(createinfo), nil, addr(vulkan.instance)) |
| 240 loadVulkan(vulkan.instance) | |
| 1193 | 241 |
| 242 # load extensions | |
| 243 # | |
| 244 for extension in requiredExtensions: | |
| 1204 | 245 loadExtension(vulkan.instance, $extension) |
| 246 vulkan.window = CreateWindow(appName) | |
| 247 vulkan.surface = CreateNativeSurface(vulkan.instance, vulkan.window) | |
| 1193 | 248 |
| 249 # logical device creation | |
| 250 | |
| 251 # TODO: allowing support for physical devices without hasUniformBufferStandardLayout | |
| 252 # would require us to ship different shaders, so we don't support standard layout | |
| 253 # if that will be added, check the function vulkan/shaders.nim:glslUniforms and update accordingly | |
| 254 # let hasUniformBufferStandardLayout = "VK_KHR_uniform_buffer_standard_layout" in physicalDevice.getExtensions() | |
| 255 # var deviceExtensions = @["VK_KHR_swapchain", "VK_KHR_uniform_buffer_standard_layout"] | |
| 256 var deviceExtensions = @["VK_KHR_swapchain"] | |
| 257 for extension in deviceExtensions: | |
| 1204 | 258 loadExtension(vulkan.instance, extension) |
| 1193 | 259 |
| 1199 | 260 when not defined(release): |
| 261 var debugMessengerCreateInfo = VkDebugUtilsMessengerCreateInfoEXT( | |
| 262 sType: VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT, | |
| 263 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT.items.toSeq.toBits, | |
| 264 messageType: VkDebugUtilsMessageTypeFlagBitsEXT.items.toSeq.toBits, | |
| 265 pfnUserCallback: debugCallback, | |
| 266 pUserData: nil, | |
| 267 ) | |
| 268 checkVkResult vkCreateDebugUtilsMessengerEXT( | |
| 1204 | 269 vulkan.instance, |
| 1199 | 270 addr(debugMessengerCreateInfo), |
| 271 nil, | |
| 1204 | 272 addr(vulkan.debugMessenger) |
| 1199 | 273 ) |
| 274 | |
| 1193 | 275 # get physical device and graphics queue family |
| 1204 | 276 vulkan.physicalDevice = GetBestPhysicalDevice(vulkan.instance) |
| 277 vulkan.graphicsQueueFamily = GetQueueFamily(vulkan.physicalDevice, VK_QUEUE_GRAPHICS_BIT) | |
| 1193 | 278 |
| 279 let | |
| 280 priority = cfloat(1) | |
| 281 queueInfo = VkDeviceQueueCreateInfo( | |
| 282 sType: VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, | |
| 1204 | 283 queueFamilyIndex: vulkan.graphicsQueueFamily, |
| 1193 | 284 queueCount: 1, |
| 285 pQueuePriorities: addr(priority), | |
| 286 ) | |
| 287 deviceExtensionsC = allocCStringArray(deviceExtensions) | |
| 288 defer: deallocCStringArray(deviceExtensionsC) | |
| 289 var createDeviceInfo = VkDeviceCreateInfo( | |
| 290 sType: VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, | |
| 291 queueCreateInfoCount: 1, | |
| 292 pQueueCreateInfos: addr(queueInfo), | |
| 293 enabledLayerCount: 0, | |
| 294 ppEnabledLayerNames: nil, | |
| 295 enabledExtensionCount: uint32(deviceExtensions.len), | |
| 296 ppEnabledExtensionNames: deviceExtensionsC, | |
| 297 pEnabledFeatures: nil, | |
| 298 ) | |
| 299 checkVkResult vkCreateDevice( | |
| 1204 | 300 physicalDevice = vulkan.physicalDevice, |
| 1193 | 301 pCreateInfo = addr createDeviceInfo, |
| 302 pAllocator = nil, | |
| 1204 | 303 pDevice = addr vulkan.device |
| 1193 | 304 ) |
| 1204 | 305 vulkan.graphicsQueue = svkGetDeviceQueue(vulkan.device, vulkan.graphicsQueueFamily, VK_QUEUE_GRAPHICS_BIT) |
| 1193 | 306 |
|
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307 proc DestroyVulkan*() = |
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308 vkDestroyDevice(vulkan.device, nil) |
| 1201 | 309 vkDestroySurfaceKHR(vulkan.instance, vulkan.surface, nil) |
| 310 vkDestroyDebugUtilsMessengerEXT(vulkan.instance, vulkan.debugMessenger, nil) | |
|
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changeset
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311 vkDestroyInstance(vulkan.instance, nil) |