Mercurial > games > semicongine
annotate semiconginev2/rendering.nim @ 1243:7e55fde39ca8
did: prepare for gltf importer and cleanup old engine code
| author | sam <sam@basx.dev> |
|---|---|
| date | Mon, 22 Jul 2024 17:49:48 +0700 |
| parents | e8b3dc80e48e |
| children | 01e9f41d35b1 |
| 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 const SURFACE_FORMAT* = VK_FORMAT_B8G8R8A8_SRGB |
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16 const DEPTH_FORMAT* = VK_FORMAT_D32_SFLOAT |
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17 |
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18 # custom pragmas to classify shader attributes |
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19 template VertexAttribute* {.pragma.} |
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20 template InstanceAttribute* {.pragma.} |
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21 template Pass* {.pragma.} |
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22 template PassFlat* {.pragma.} |
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23 template ShaderOutput* {.pragma.} |
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24 template DescriptorSets* {.pragma.} |
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25 |
| 1193 | 26 # there is a big, bad global vulkan object |
| 27 # believe me, this makes everything much, much easier | |
| 28 | |
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29 when defined(windows): |
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30 include ./rendering/platform/windows |
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31 when defined(linux): |
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32 include ./rendering/platform/linux |
| 1193 | 33 |
| 34 type | |
| 35 VulkanGlobals* = object | |
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36 # populated through InitVulkan proc |
| 1193 | 37 instance*: VkInstance |
| 38 device*: VkDevice | |
| 39 physicalDevice*: VkPhysicalDevice | |
| 40 surface: VkSurfaceKHR | |
| 41 window: NativeWindow | |
| 42 graphicsQueueFamily*: uint32 | |
| 43 graphicsQueue*: VkQueue | |
| 1199 | 44 debugMessenger: VkDebugUtilsMessengerEXT |
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45 # populated through the InitSwapchain proc |
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46 swapchain*: Swapchain |
| 1197 | 47 # unclear as of yet |
| 48 anisotropy*: float32 = 0 # needs to be enable during device creation | |
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49 Renderpass* = ref object |
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50 vk*: VkRenderPass |
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51 samples*: VkSampleCountFlagBits |
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52 depthBuffer*: bool |
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53 Swapchain* = ref object |
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54 # parameters to InitSwapchain, required for swapchain recreation |
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55 renderPass*: RenderPass |
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56 vSync: bool |
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57 # populated through InitSwapchain proc |
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58 vk: VkSwapchainKHR |
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59 width*: uint32 |
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60 height*: uint32 |
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61 framebuffers: seq[VkFramebuffer] |
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62 framebufferViews: seq[VkImageView] |
| 1198 | 63 currentFramebufferIndex: uint32 |
| 64 commandBufferPool: VkCommandPool | |
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65 # depth buffer stuff, if enabled |
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66 depthImage: VkImage |
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67 depthImageView*: VkImageView |
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68 depthMemory: VkDeviceMemory |
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69 # MSAA stuff, if enabled |
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70 msaaImage: VkImage |
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71 msaaImageView*: VkImageView |
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72 msaaMemory: VkDeviceMemory |
| 1198 | 73 # frame-in-flight handling |
| 74 currentFiF: range[0 .. (INFLIGHTFRAMES - 1).int] | |
| 1197 | 75 queueFinishedFence*: array[INFLIGHTFRAMES.int, VkFence] |
| 76 imageAvailableSemaphore*: array[INFLIGHTFRAMES.int, VkSemaphore] | |
| 77 renderFinishedSemaphore*: array[INFLIGHTFRAMES.int, VkSemaphore] | |
| 1198 | 78 commandBuffers: array[INFLIGHTFRAMES.int, VkCommandBuffer] |
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79 oldSwapchain: Swapchain |
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80 oldSwapchainCounter: int # swaps until old swapchain will be destroyed |
| 1193 | 81 |
| 82 var vulkan*: VulkanGlobals | |
| 1226 | 83 var fullscreen: bool |
| 1193 | 84 |
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85 type |
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86 # type aliases |
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87 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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88 |
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89 # shader related types |
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90 DescriptorSet*[T: object] = object |
| 1192 | 91 data*: T |
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92 vk: array[INFLIGHTFRAMES.int, VkDescriptorSet] |
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93 Pipeline*[TShader] = object |
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94 vk: VkPipeline |
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95 vertexShaderModule: VkShaderModule |
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96 fragmentShaderModule: VkShaderModule |
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97 layout: VkPipelineLayout |
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98 descriptorSetLayouts*: array[MAX_DESCRIPTORSETS, VkDescriptorSetLayout] |
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99 |
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100 # memory/buffer related types |
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101 MemoryBlock* = object |
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102 vk: VkDeviceMemory |
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103 size: uint64 |
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104 rawPointer: pointer # if not nil, this is mapped memory |
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105 offsetNextFree: uint64 |
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106 BufferType* = enum |
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107 VertexBuffer |
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108 VertexBufferMapped |
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109 IndexBuffer |
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110 IndexBufferMapped |
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111 UniformBuffer |
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112 UniformBufferMapped |
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113 Buffer* = object |
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114 vk: VkBuffer |
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115 size: uint64 |
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116 rawPointer: pointer # if not nil, buffer is using mapped memory |
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117 offsetNextFree: uint64 |
| 1231 | 118 memoryOffset: uint64 |
| 119 memory: VkDeviceMemory | |
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120 GPUArray*[T: SupportedGPUType, TBuffer: static BufferType] = object |
| 1192 | 121 data*: seq[T] |
| 1202 | 122 buffer*: Buffer |
| 123 offset*: uint64 | |
| 1210 | 124 GPUValue*[T: object, TBuffer: static BufferType] = object |
| 1192 | 125 data*: T |
| 1231 | 126 buffer*: Buffer |
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127 offset: uint64 |
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128 GPUData = GPUArray | GPUValue |
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129 |
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130 RenderData* = object |
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131 descriptorPool: VkDescriptorPool |
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132 memory: array[VK_MAX_MEMORY_TYPES.int, seq[MemoryBlock]] |
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133 buffers: array[BufferType, seq[Buffer]] |
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134 images: seq[VkImage] |
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135 imageViews: seq[VkImageView] |
| 1201 | 136 samplers: seq[VkSampler] |
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137 |
| 1192 | 138 template ForDescriptorFields(shader: typed, fieldname, valuename, typename, countname, bindingNumber, body: untyped): untyped = |
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139 var `bindingNumber` {.inject.} = 0'u32 |
| 1192 | 140 for theFieldname, value in fieldPairs(shader): |
| 1228 | 141 when typeof(value) is Image: |
| 1192 | 142 block: |
| 143 const `fieldname` {.inject.} = theFieldname | |
| 144 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER | |
| 145 const `countname` {.inject.} = 1'u32 | |
| 146 let `valuename` {.inject.} = value | |
| 147 body | |
| 148 `bindingNumber`.inc | |
| 1210 | 149 elif typeof(value) is GPUValue: |
| 1192 | 150 block: |
| 151 const `fieldname` {.inject.} = theFieldname | |
| 152 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER | |
| 153 const `countname` {.inject.} = 1'u32 | |
| 154 let `valuename` {.inject.} = value | |
| 155 body | |
| 156 `bindingNumber`.inc | |
| 157 elif typeof(value) is array: | |
| 1228 | 158 when elementType(value) is Image: |
| 1192 | 159 block: |
| 160 const `fieldname` {.inject.} = theFieldname | |
| 161 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER | |
| 162 const `countname` {.inject.} = uint32(typeof(value).len) | |
| 163 let `valuename` {.inject.} = value | |
| 164 body | |
| 165 `bindingNumber`.inc | |
| 1210 | 166 elif elementType(value) is GPUValue: |
| 1192 | 167 block: |
| 168 const `fieldname` {.inject.} = theFieldname | |
| 169 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER | |
| 1210 | 170 const `countname` {.inject.} = len(value).uint32 |
| 1192 | 171 let `valuename` {.inject.} = value |
| 172 body | |
| 173 `bindingNumber`.inc | |
| 174 else: | |
| 175 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 1210 | 176 else: |
| 177 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 1192 | 178 |
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179 include ./rendering/vulkan_wrappers |
| 1199 | 180 include ./rendering/renderpasses |
| 1194 | 181 include ./rendering/swapchain |
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182 include ./rendering/shaders |
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183 include ./rendering/renderer |
| 1193 | 184 |
| 1199 | 185 proc debugCallback( |
| 186 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT, | |
| 187 messageTypes: VkDebugUtilsMessageTypeFlagsEXT, | |
| 188 pCallbackData: ptr VkDebugUtilsMessengerCallbackDataEXT, | |
| 189 userData: pointer | |
| 190 ): VkBool32 {.cdecl.} = | |
| 191 const LOG_LEVEL_MAPPING = { | |
| 192 VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT: lvlDebug, | |
| 193 VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT: lvlInfo, | |
| 194 VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT: lvlWarn, | |
| 195 VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: lvlError, | |
| 196 }.toTable | |
| 197 log LOG_LEVEL_MAPPING[messageSeverity], &"{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 198 if messageSeverity == VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: | |
| 199 stderr.writeLine "-----------------------------------" | |
| 200 stderr.write getStackTrace() | |
| 201 stderr.writeLine LOG_LEVEL_MAPPING[messageSeverity], &"{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 202 stderr.writeLine "-----------------------------------" | |
| 203 let errorMsg = getStackTrace() & &"\n{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 204 raise newException(Exception, errorMsg) | |
| 205 return false | |
| 1193 | 206 |
| 1204 | 207 proc InitVulkan*(appName: string = "semicongine app") = |
| 1193 | 208 |
| 209 # instance creation | |
| 1198 | 210 |
| 211 # enagle all kind of debug stuff | |
| 1193 | 212 when not defined(release): |
| 213 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface", "VK_EXT_debug_utils"] | |
| 214 let layers: seq[string] = if hasValidationLayer(): @["VK_LAYER_KHRONOS_validation"] else: @[] | |
| 1198 | 215 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 | 216 else: |
| 217 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface"] | |
| 218 let layers: seq[string] | |
| 219 | |
| 220 var | |
| 221 layersC = allocCStringArray(layers) | |
| 222 instanceExtensionsC = allocCStringArray(requiredExtensions) | |
| 223 defer: | |
| 224 deallocCStringArray(layersC) | |
| 225 deallocCStringArray(instanceExtensionsC) | |
| 226 | |
| 227 var | |
| 228 appinfo = VkApplicationInfo( | |
| 229 sType: VK_STRUCTURE_TYPE_APPLICATION_INFO, | |
| 230 pApplicationName: appName, | |
| 231 pEngineName: "semicongine", | |
| 232 apiVersion: VK_MAKE_API_VERSION(0, 1, 3, 0), | |
| 233 ) | |
| 234 createinfo = VkInstanceCreateInfo( | |
| 235 sType: VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO, | |
| 236 pApplicationInfo: addr(appinfo), | |
| 237 enabledLayerCount: layers.len.uint32, | |
| 238 ppEnabledLayerNames: layersC, | |
| 239 enabledExtensionCount: requiredExtensions.len.uint32, | |
| 240 ppEnabledExtensionNames: instanceExtensionsC | |
| 241 ) | |
| 1204 | 242 checkVkResult vkCreateInstance(addr(createinfo), nil, addr(vulkan.instance)) |
| 243 loadVulkan(vulkan.instance) | |
| 1193 | 244 |
| 245 # load extensions | |
| 246 # | |
| 247 for extension in requiredExtensions: | |
| 1204 | 248 loadExtension(vulkan.instance, $extension) |
| 249 vulkan.window = CreateWindow(appName) | |
| 250 vulkan.surface = CreateNativeSurface(vulkan.instance, vulkan.window) | |
| 1193 | 251 |
| 252 # logical device creation | |
| 253 | |
| 254 # TODO: allowing support for physical devices without hasUniformBufferStandardLayout | |
| 255 # would require us to ship different shaders, so we don't support standard layout | |
| 256 # if that will be added, check the function vulkan/shaders.nim:glslUniforms and update accordingly | |
| 257 # let hasUniformBufferStandardLayout = "VK_KHR_uniform_buffer_standard_layout" in physicalDevice.getExtensions() | |
| 258 # var deviceExtensions = @["VK_KHR_swapchain", "VK_KHR_uniform_buffer_standard_layout"] | |
| 259 var deviceExtensions = @["VK_KHR_swapchain"] | |
| 260 for extension in deviceExtensions: | |
| 1204 | 261 loadExtension(vulkan.instance, extension) |
| 1193 | 262 |
| 1199 | 263 when not defined(release): |
| 264 var debugMessengerCreateInfo = VkDebugUtilsMessengerCreateInfoEXT( | |
| 265 sType: VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT, | |
| 266 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT.items.toSeq.toBits, | |
| 267 messageType: VkDebugUtilsMessageTypeFlagBitsEXT.items.toSeq.toBits, | |
| 268 pfnUserCallback: debugCallback, | |
| 269 pUserData: nil, | |
| 270 ) | |
| 271 checkVkResult vkCreateDebugUtilsMessengerEXT( | |
| 1204 | 272 vulkan.instance, |
| 1199 | 273 addr(debugMessengerCreateInfo), |
| 274 nil, | |
| 1204 | 275 addr(vulkan.debugMessenger) |
| 1199 | 276 ) |
| 277 | |
| 1193 | 278 # get physical device and graphics queue family |
| 1204 | 279 vulkan.physicalDevice = GetBestPhysicalDevice(vulkan.instance) |
| 280 vulkan.graphicsQueueFamily = GetQueueFamily(vulkan.physicalDevice, VK_QUEUE_GRAPHICS_BIT) | |
| 1193 | 281 |
| 282 let | |
| 283 priority = cfloat(1) | |
| 284 queueInfo = VkDeviceQueueCreateInfo( | |
| 285 sType: VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, | |
| 1204 | 286 queueFamilyIndex: vulkan.graphicsQueueFamily, |
| 1193 | 287 queueCount: 1, |
| 288 pQueuePriorities: addr(priority), | |
| 289 ) | |
| 290 deviceExtensionsC = allocCStringArray(deviceExtensions) | |
| 291 defer: deallocCStringArray(deviceExtensionsC) | |
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292 let enabledFeatures = VkPhysicalDeviceFeatures( |
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293 fillModeNonSolid: true, |
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294 wideLines: true, |
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295 largePoints: true, |
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296 ) |
| 1193 | 297 var createDeviceInfo = VkDeviceCreateInfo( |
| 298 sType: VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, | |
| 299 queueCreateInfoCount: 1, | |
| 300 pQueueCreateInfos: addr(queueInfo), | |
| 301 enabledLayerCount: 0, | |
| 302 ppEnabledLayerNames: nil, | |
| 303 enabledExtensionCount: uint32(deviceExtensions.len), | |
| 304 ppEnabledExtensionNames: deviceExtensionsC, | |
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305 pEnabledFeatures: addr(enabledFeatures), |
| 1193 | 306 ) |
| 307 checkVkResult vkCreateDevice( | |
| 1204 | 308 physicalDevice = vulkan.physicalDevice, |
| 1193 | 309 pCreateInfo = addr createDeviceInfo, |
| 310 pAllocator = nil, | |
| 1204 | 311 pDevice = addr vulkan.device |
| 1193 | 312 ) |
| 1204 | 313 vulkan.graphicsQueue = svkGetDeviceQueue(vulkan.device, vulkan.graphicsQueueFamily, VK_QUEUE_GRAPHICS_BIT) |
| 1193 | 314 |
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315 proc ClearSwapchain*() = |
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316 assert vulkan.swapchain != nil, "Swapchain has not been initialized yet" |
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317 DestroySwapchain(vulkan.swapchain) |
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318 vulkan.swapchain = nil |
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319 |
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320 proc SetupSwapchain*(renderPass: RenderPass, vSync: bool = false) = |
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321 assert vulkan.swapchain == nil, "Swapchain has already been initialized yet" |
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322 vulkan.swapchain = InitSwapchain(renderPass, vSync = vSync) |
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323 |
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324 proc DestroyVulkan*() = |
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325 if vulkan.swapchain != nil: |
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326 DestroySwapchain(vulkan.swapchain) |
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327 vkDestroyDevice(vulkan.device, nil) |
| 1201 | 328 vkDestroySurfaceKHR(vulkan.instance, vulkan.surface, nil) |
| 329 vkDestroyDebugUtilsMessengerEXT(vulkan.instance, vulkan.debugMessenger, nil) | |
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330 vkDestroyInstance(vulkan.instance, nil) |
| 1226 | 331 |
| 332 proc ShowSystemCursor*() = vulkan.window.ShowSystemCursor() | |
| 333 proc HideSystemCursor*() = vulkan.window.HideSystemCursor() | |
| 334 proc Fullscreen*(): bool = fullscreen | |
| 335 proc `Fullscreen=`*(enable: bool) = | |
| 336 if enable != fullscreen: | |
| 337 fullscreen = enable | |
| 338 vulkan.window.Fullscreen(fullscreen) | |
| 339 | |
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340 proc GetAspectRatio*(): float32 = |
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341 assert vulkan.swapchain != nil, "Swapchain has not been initialized yet" |
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342 vulkan.swapchain.width.float32 / vulkan.swapchain.height.float32 |
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343 |
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344 proc currentFiF*(): int = |
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345 assert vulkan.swapchain != nil, "Swapchain has not been initialized yet" |
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346 vulkan.swapchain.currentFiF |
| 1226 | 347 |
| 348 proc MaxFramebufferSampleCount*(maxSamples = VK_SAMPLE_COUNT_8_BIT): VkSampleCountFlagBits = | |
| 349 let limits = svkGetPhysicalDeviceProperties().limits | |
| 350 let available = VkSampleCountFlags( | |
| 351 limits.framebufferColorSampleCounts.uint32 and limits.framebufferDepthSampleCounts.uint32 | |
| 352 ).toEnums | |
| 353 return min(max(available), maxSamples) | |
| 354 | |
| 355 | |
| 1228 | 356 proc `[]`*(image: Image, x, y: uint32): auto = |
| 357 assert x < image.width, &"{x} < {image.width} is not true" | |
| 358 assert y < image.height, &"{y} < {image.height} is not true" | |
| 1226 | 359 |
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360 image.data[y * image.width + x] |
| 1226 | 361 |
| 1228 | 362 proc `[]=`*[T](image: var Image[T], x, y: uint32, value: T) = |
| 363 assert x < image.width | |
| 364 assert y < image.height | |
| 1226 | 365 |
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366 image.data[y * image.width + x] = value |