Mercurial > games > semicongine
annotate semicongine/rendering.nim @ 1197:f6a0dc7ad052 compiletime-tests
sync from bedroom to office
| author | sam <sam@basx.dev> |
|---|---|
| date | Fri, 12 Jul 2024 23:06:29 +0700 |
| parents | 82feceae80b1 |
| children | 96a094cd0c78 |
| 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 |
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15 # custom pragmas to classify shader attributes |
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16 template VertexAttribute* {.pragma.} |
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17 template InstanceAttribute* {.pragma.} |
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18 template Pass* {.pragma.} |
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19 template PassFlat* {.pragma.} |
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20 template ShaderOutput* {.pragma.} |
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21 |
| 1193 | 22 # there is a big, bad global vulkan object |
| 23 # believe me, this makes everything much, much easier | |
| 24 | |
| 25 include ./platform/window # for NativeWindow | |
| 26 include ./platform/surface # For CreateNativeSurface | |
| 27 | |
| 28 type | |
| 29 VulkanGlobals* = object | |
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30 # populated through InitVulkan proc |
| 1193 | 31 instance*: VkInstance |
| 32 device*: VkDevice | |
| 33 physicalDevice*: VkPhysicalDevice | |
| 34 surface: VkSurfaceKHR | |
| 35 window: NativeWindow | |
| 36 graphicsQueueFamily*: uint32 | |
| 37 graphicsQueue*: VkQueue | |
| 1197 | 38 # unclear as of yet |
| 39 anisotropy*: float32 = 0 # needs to be enable during device creation | |
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40 Swapchain = object |
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41 # parameters to InitSwapchain, required for swapchain recreation |
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42 renderPass: VkRenderPass |
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43 vSync: bool |
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44 samples: VkSampleCountFlagBits |
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45 # populated through InitSwapchain proc |
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46 vk: VkSwapchainKHR |
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47 msaaImage: VkImage |
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48 msaaMemory: VkDeviceMemory |
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49 msaaImageView: VkImageView |
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50 framebuffers: seq[VkFramebuffer] |
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51 framebufferViews: seq[VkImageView] |
| 1197 | 52 queueFinishedFence*: array[INFLIGHTFRAMES.int, VkFence] |
| 53 imageAvailableSemaphore*: array[INFLIGHTFRAMES.int, VkSemaphore] | |
| 54 renderFinishedSemaphore*: array[INFLIGHTFRAMES.int, VkSemaphore] | |
| 1196 | 55 currentFiF: range[0 .. (INFLIGHTFRAMES - 1).int] |
| 1197 | 56 currentFramebufferIndex: uint32 |
| 1193 | 57 |
| 58 var vulkan*: VulkanGlobals | |
| 59 | |
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60 type |
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61 # type aliases |
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62 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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63 TextureType = TVec1[uint8] | TVec2[uint8] | TVec3[uint8] | TVec4[uint8] |
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64 |
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65 IndexType = enum |
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66 None, UInt8, UInt16, UInt32 |
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67 |
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68 # shader related types |
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69 DescriptorSetType* = enum |
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70 GlobalSet |
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71 MaterialSet |
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72 DescriptorSet*[T: object, sType: static DescriptorSetType] = object |
| 1192 | 73 data*: T |
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74 vk: array[INFLIGHTFRAMES.int, VkDescriptorSet] |
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75 Pipeline*[TShader] = object |
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76 vk: VkPipeline |
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77 layout: VkPipelineLayout |
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78 descriptorSetLayouts: array[DescriptorSetType, VkDescriptorSetLayout] |
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79 |
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80 # memory/buffer related types |
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81 MemoryBlock* = object |
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82 vk: VkDeviceMemory |
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83 size: uint64 |
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84 rawPointer: pointer # if not nil, this is mapped memory |
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85 offsetNextFree: uint64 |
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86 BufferType* = enum |
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87 VertexBuffer |
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88 VertexBufferMapped |
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89 IndexBuffer |
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90 IndexBufferMapped |
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91 UniformBuffer |
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92 UniformBufferMapped |
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93 Buffer* = object |
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94 vk: VkBuffer |
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95 size: uint64 |
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96 rawPointer: pointer # if not nil, buffer is using mapped memory |
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97 offsetNextFree: uint64 |
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98 Texture*[T: TextureType] = object |
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99 vk: VkImage |
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100 imageview: VkImageView |
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101 sampler: VkSampler |
| 1192 | 102 width*: uint32 |
| 103 height*: uint32 | |
| 104 data*: seq[T] | |
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105 GPUArray*[T: SupportedGPUType, TBuffer: static BufferType] = object |
| 1192 | 106 data*: seq[T] |
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107 buffer: Buffer |
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108 offset: uint64 |
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109 GPUValue*[T: object|array, TBuffer: static BufferType] = object |
| 1192 | 110 data*: T |
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111 buffer: Buffer |
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112 offset: uint64 |
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113 GPUData = GPUArray | GPUValue |
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114 |
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115 RenderData* = object |
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116 descriptorPool: VkDescriptorPool |
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117 memory: array[VK_MAX_MEMORY_TYPES.int, seq[MemoryBlock]] |
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118 buffers: array[BufferType, seq[Buffer]] |
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119 |
| 1192 | 120 template ForDescriptorFields(shader: typed, fieldname, valuename, typename, countname, bindingNumber, body: untyped): untyped = |
| 121 var `bindingNumber` {.inject.} = 1'u32 | |
| 122 for theFieldname, value in fieldPairs(shader): | |
| 123 when typeof(value) is Texture: | |
| 124 block: | |
| 125 const `fieldname` {.inject.} = theFieldname | |
| 126 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER | |
| 127 const `countname` {.inject.} = 1'u32 | |
| 128 let `valuename` {.inject.} = value | |
| 129 body | |
| 130 `bindingNumber`.inc | |
| 131 elif typeof(value) is object: | |
| 132 block: | |
| 133 const `fieldname` {.inject.} = theFieldname | |
| 134 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER | |
| 135 const `countname` {.inject.} = 1'u32 | |
| 136 let `valuename` {.inject.} = value | |
| 137 body | |
| 138 `bindingNumber`.inc | |
| 139 elif typeof(value) is array: | |
| 140 when elementType(value) is Texture: | |
| 141 block: | |
| 142 const `fieldname` {.inject.} = theFieldname | |
| 143 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER | |
| 144 const `countname` {.inject.} = uint32(typeof(value).len) | |
| 145 let `valuename` {.inject.} = value | |
| 146 body | |
| 147 `bindingNumber`.inc | |
| 148 elif elementType(value) is object: | |
| 149 block: | |
| 150 const `fieldname` {.inject.} = theFieldname | |
| 151 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER | |
| 152 const `countname` {.inject.} = uint32(typeof(value).len) | |
| 153 let `valuename` {.inject.} = value | |
| 154 body | |
| 155 `bindingNumber`.inc | |
| 156 else: | |
| 157 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 158 | |
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159 include ./rendering/vulkan_wrappers |
| 1194 | 160 include ./rendering/swapchain |
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161 include ./rendering/shaders |
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162 include ./rendering/renderer |
| 1193 | 163 |
| 164 | |
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165 proc InitVulkan(appName: string = "semicongine app"): VulkanGlobals = |
| 1193 | 166 |
| 167 include ./platform/vulkan_extensions # for REQUIRED_PLATFORM_EXTENSIONS | |
| 168 | |
| 169 # instance creation | |
| 170 # | |
| 171 when not defined(release): | |
| 172 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface", "VK_EXT_debug_utils"] | |
| 173 let layers: seq[string] = if hasValidationLayer(): @["VK_LAYER_KHRONOS_validation"] else: @[] | |
| 174 else: | |
| 175 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface"] | |
| 176 let layers: seq[string] | |
| 177 | |
| 178 var | |
| 179 layersC = allocCStringArray(layers) | |
| 180 instanceExtensionsC = allocCStringArray(requiredExtensions) | |
| 181 defer: | |
| 182 deallocCStringArray(layersC) | |
| 183 deallocCStringArray(instanceExtensionsC) | |
| 184 | |
| 185 var | |
| 186 appinfo = VkApplicationInfo( | |
| 187 sType: VK_STRUCTURE_TYPE_APPLICATION_INFO, | |
| 188 pApplicationName: appName, | |
| 189 pEngineName: "semicongine", | |
| 190 apiVersion: VK_MAKE_API_VERSION(0, 1, 3, 0), | |
| 191 ) | |
| 192 createinfo = VkInstanceCreateInfo( | |
| 193 sType: VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO, | |
| 194 pApplicationInfo: addr(appinfo), | |
| 195 enabledLayerCount: layers.len.uint32, | |
| 196 ppEnabledLayerNames: layersC, | |
| 197 enabledExtensionCount: requiredExtensions.len.uint32, | |
| 198 ppEnabledExtensionNames: instanceExtensionsC | |
| 199 ) | |
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200 checkVkResult vkCreateInstance(addr(createinfo), nil, addr(result.instance)) |
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201 loadVulkan(result.instance) |
| 1193 | 202 |
| 203 # load extensions | |
| 204 # | |
| 205 for extension in requiredExtensions: | |
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206 loadExtension(result.instance, $extension) |
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207 result.window = CreateWindow(appName) |
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208 result.surface = CreateNativeSurface(result.instance, result.window) |
| 1193 | 209 |
| 210 # logical device creation | |
| 211 | |
| 212 # TODO: allowing support for physical devices without hasUniformBufferStandardLayout | |
| 213 # would require us to ship different shaders, so we don't support standard layout | |
| 214 # if that will be added, check the function vulkan/shaders.nim:glslUniforms and update accordingly | |
| 215 # let hasUniformBufferStandardLayout = "VK_KHR_uniform_buffer_standard_layout" in physicalDevice.getExtensions() | |
| 216 # var deviceExtensions = @["VK_KHR_swapchain", "VK_KHR_uniform_buffer_standard_layout"] | |
| 217 var deviceExtensions = @["VK_KHR_swapchain"] | |
| 218 for extension in deviceExtensions: | |
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219 loadExtension(result.instance, extension) |
| 1193 | 220 |
| 221 # get physical device and graphics queue family | |
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222 result.physicalDevice = GetBestPhysicalDevice(result.instance) |
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223 result.graphicsQueueFamily = GetQueueFamily(result.physicalDevice, VK_QUEUE_GRAPHICS_BIT) |
| 1193 | 224 |
| 225 let | |
| 226 priority = cfloat(1) | |
| 227 queueInfo = VkDeviceQueueCreateInfo( | |
| 228 sType: VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, | |
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229 queueFamilyIndex: result.graphicsQueueFamily, |
| 1193 | 230 queueCount: 1, |
| 231 pQueuePriorities: addr(priority), | |
| 232 ) | |
| 233 deviceExtensionsC = allocCStringArray(deviceExtensions) | |
| 234 defer: deallocCStringArray(deviceExtensionsC) | |
| 235 var createDeviceInfo = VkDeviceCreateInfo( | |
| 236 sType: VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, | |
| 237 queueCreateInfoCount: 1, | |
| 238 pQueueCreateInfos: addr(queueInfo), | |
| 239 enabledLayerCount: 0, | |
| 240 ppEnabledLayerNames: nil, | |
| 241 enabledExtensionCount: uint32(deviceExtensions.len), | |
| 242 ppEnabledExtensionNames: deviceExtensionsC, | |
| 243 pEnabledFeatures: nil, | |
| 244 ) | |
| 245 checkVkResult vkCreateDevice( | |
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246 physicalDevice = result.physicalDevice, |
| 1193 | 247 pCreateInfo = addr createDeviceInfo, |
| 248 pAllocator = nil, | |
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249 pDevice = addr result.device |
| 1193 | 250 ) |
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251 result.graphicsQueue = svkGetDeviceQueue(result.device, result.graphicsQueueFamily, VK_QUEUE_GRAPHICS_BIT) |
| 1193 | 252 |
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253 vulkan = InitVulkan() |