Mercurial > games > semicongine
annotate semiconginev2/rendering.nim @ 1229:5dcb503ef0c0
did: refactor renderpass a bit, enable depth buffering and msaa on offscreen-rendering
| author | sam <sam@basx.dev> |
|---|---|
| date | Thu, 18 Jul 2024 21:32:41 +0700 |
| parents | 4e465583ea32 |
| children | 70f6c1cfe005 |
| 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 |
| 1197 | 45 # unclear as of yet |
| 46 anisotropy*: float32 = 0 # needs to be enable during device creation | |
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47 Renderpass* = ref object |
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48 vk*: VkRenderPass |
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49 samples*: VkSampleCountFlagBits |
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50 depthBuffer*: bool |
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51 Swapchain* = ref object |
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52 # parameters to InitSwapchain, required for swapchain recreation |
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53 renderPass*: RenderPass |
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54 vSync: bool |
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55 # populated through InitSwapchain proc |
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56 vk: VkSwapchainKHR |
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57 width*: uint32 |
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58 height*: uint32 |
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59 framebuffers: seq[VkFramebuffer] |
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60 framebufferViews: seq[VkImageView] |
| 1198 | 61 currentFramebufferIndex: uint32 |
| 62 commandBufferPool: VkCommandPool | |
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63 # depth buffer stuff, if enabled |
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64 depthImage: VkImage |
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65 depthImageView*: VkImageView |
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66 depthMemory: VkDeviceMemory |
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67 # MSAA stuff, if enabled |
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68 msaaImage: VkImage |
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69 msaaImageView*: VkImageView |
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70 msaaMemory: VkDeviceMemory |
| 1198 | 71 # frame-in-flight handling |
| 72 currentFiF: range[0 .. (INFLIGHTFRAMES - 1).int] | |
| 1197 | 73 queueFinishedFence*: array[INFLIGHTFRAMES.int, VkFence] |
| 74 imageAvailableSemaphore*: array[INFLIGHTFRAMES.int, VkSemaphore] | |
| 75 renderFinishedSemaphore*: array[INFLIGHTFRAMES.int, VkSemaphore] | |
| 1198 | 76 commandBuffers: array[INFLIGHTFRAMES.int, VkCommandBuffer] |
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77 oldSwapchain: Swapchain |
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78 oldSwapchainCounter: int # swaps until old swapchain will be destroyed |
| 1193 | 79 |
| 80 var vulkan*: VulkanGlobals | |
| 1226 | 81 var fullscreen: bool |
| 1193 | 82 |
| 1202 | 83 func currentFiF*(swapchain: Swapchain): int = swapchain.currentFiF |
| 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] |
| 1228 | 88 PixelType = TVec1[uint8] | TVec4[uint8] |
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89 |
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90 # shader related types |
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91 DescriptorSet*[T: object] = object |
| 1192 | 92 data*: T |
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93 vk: array[INFLIGHTFRAMES.int, VkDescriptorSet] |
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94 Pipeline*[TShader] = object |
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95 vk: VkPipeline |
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96 vertexShaderModule: VkShaderModule |
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97 fragmentShaderModule: VkShaderModule |
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98 layout: VkPipelineLayout |
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99 descriptorSetLayouts*: array[MAX_DESCRIPTORSETS, VkDescriptorSetLayout] |
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100 |
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101 # memory/buffer related types |
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102 MemoryBlock* = object |
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103 vk: VkDeviceMemory |
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104 size: uint64 |
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105 rawPointer: pointer # if not nil, this is mapped memory |
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106 offsetNextFree: uint64 |
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107 BufferType* = enum |
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108 VertexBuffer |
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109 VertexBufferMapped |
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110 IndexBuffer |
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111 IndexBufferMapped |
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112 UniformBuffer |
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113 UniformBufferMapped |
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114 Buffer* = object |
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115 vk: VkBuffer |
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116 size: uint64 |
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117 rawPointer: pointer # if not nil, buffer is using mapped memory |
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118 offsetNextFree: uint64 |
| 1228 | 119 Image*[T: PixelType] = object |
| 1210 | 120 width*: uint32 |
| 121 height*: uint32 | |
| 122 interpolation*: VkFilter = VK_FILTER_LINEAR | |
| 123 data*: seq[T] | |
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124 vk*: VkImage |
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125 imageview*: VkImageView |
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126 sampler*: VkSampler |
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127 isRenderTarget*: bool = false |
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128 samples*: VkSampleCountFlagBits = VK_SAMPLE_COUNT_1_BIT |
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129 GPUArray*[T: SupportedGPUType, TBuffer: static BufferType] = object |
| 1192 | 130 data*: seq[T] |
| 1202 | 131 buffer*: Buffer |
| 132 offset*: uint64 | |
| 1210 | 133 GPUValue*[T: object, TBuffer: static BufferType] = object |
| 1192 | 134 data*: T |
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135 buffer: Buffer |
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136 offset: uint64 |
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137 GPUData = GPUArray | GPUValue |
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138 |
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139 RenderData* = object |
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140 descriptorPool: VkDescriptorPool |
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141 memory: array[VK_MAX_MEMORY_TYPES.int, seq[MemoryBlock]] |
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142 buffers: array[BufferType, seq[Buffer]] |
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143 images: seq[VkImage] |
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144 imageViews: seq[VkImageView] |
| 1201 | 145 samplers: seq[VkSampler] |
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146 |
| 1192 | 147 template ForDescriptorFields(shader: typed, fieldname, valuename, typename, countname, bindingNumber, body: untyped): untyped = |
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148 var `bindingNumber` {.inject.} = 0'u32 |
| 1192 | 149 for theFieldname, value in fieldPairs(shader): |
| 1228 | 150 when typeof(value) is Image: |
| 1192 | 151 block: |
| 152 const `fieldname` {.inject.} = theFieldname | |
| 153 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER | |
| 154 const `countname` {.inject.} = 1'u32 | |
| 155 let `valuename` {.inject.} = value | |
| 156 body | |
| 157 `bindingNumber`.inc | |
| 1210 | 158 elif typeof(value) is GPUValue: |
| 1192 | 159 block: |
| 160 const `fieldname` {.inject.} = theFieldname | |
| 161 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER | |
| 162 const `countname` {.inject.} = 1'u32 | |
| 163 let `valuename` {.inject.} = value | |
| 164 body | |
| 165 `bindingNumber`.inc | |
| 166 elif typeof(value) is array: | |
| 1228 | 167 when elementType(value) is Image: |
| 1192 | 168 block: |
| 169 const `fieldname` {.inject.} = theFieldname | |
| 170 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER | |
| 171 const `countname` {.inject.} = uint32(typeof(value).len) | |
| 172 let `valuename` {.inject.} = value | |
| 173 body | |
| 174 `bindingNumber`.inc | |
| 1210 | 175 elif elementType(value) is GPUValue: |
| 1192 | 176 block: |
| 177 const `fieldname` {.inject.} = theFieldname | |
| 178 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER | |
| 1210 | 179 const `countname` {.inject.} = len(value).uint32 |
| 1192 | 180 let `valuename` {.inject.} = value |
| 181 body | |
| 182 `bindingNumber`.inc | |
| 183 else: | |
| 184 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 1210 | 185 else: |
| 186 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 1192 | 187 |
|
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188 include ./rendering/vulkan_wrappers |
| 1199 | 189 include ./rendering/renderpasses |
| 1194 | 190 include ./rendering/swapchain |
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191 include ./rendering/shaders |
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192 include ./rendering/renderer |
| 1193 | 193 |
| 1199 | 194 proc debugCallback( |
| 195 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT, | |
| 196 messageTypes: VkDebugUtilsMessageTypeFlagsEXT, | |
| 197 pCallbackData: ptr VkDebugUtilsMessengerCallbackDataEXT, | |
| 198 userData: pointer | |
| 199 ): VkBool32 {.cdecl.} = | |
| 200 const LOG_LEVEL_MAPPING = { | |
| 201 VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT: lvlDebug, | |
| 202 VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT: lvlInfo, | |
| 203 VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT: lvlWarn, | |
| 204 VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: lvlError, | |
| 205 }.toTable | |
| 206 log LOG_LEVEL_MAPPING[messageSeverity], &"{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 207 if messageSeverity == VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: | |
| 208 stderr.writeLine "-----------------------------------" | |
| 209 stderr.write getStackTrace() | |
| 210 stderr.writeLine LOG_LEVEL_MAPPING[messageSeverity], &"{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 211 stderr.writeLine "-----------------------------------" | |
| 212 let errorMsg = getStackTrace() & &"\n{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 213 raise newException(Exception, errorMsg) | |
| 214 return false | |
| 1193 | 215 |
| 1204 | 216 proc InitVulkan*(appName: string = "semicongine app") = |
| 1193 | 217 |
| 218 include ./platform/vulkan_extensions # for REQUIRED_PLATFORM_EXTENSIONS | |
| 219 | |
| 220 # instance creation | |
| 1198 | 221 |
| 222 # enagle all kind of debug stuff | |
| 1193 | 223 when not defined(release): |
| 224 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface", "VK_EXT_debug_utils"] | |
| 225 let layers: seq[string] = if hasValidationLayer(): @["VK_LAYER_KHRONOS_validation"] else: @[] | |
| 1198 | 226 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 | 227 else: |
| 228 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface"] | |
| 229 let layers: seq[string] | |
| 230 | |
| 231 var | |
| 232 layersC = allocCStringArray(layers) | |
| 233 instanceExtensionsC = allocCStringArray(requiredExtensions) | |
| 234 defer: | |
| 235 deallocCStringArray(layersC) | |
| 236 deallocCStringArray(instanceExtensionsC) | |
| 237 | |
| 238 var | |
| 239 appinfo = VkApplicationInfo( | |
| 240 sType: VK_STRUCTURE_TYPE_APPLICATION_INFO, | |
| 241 pApplicationName: appName, | |
| 242 pEngineName: "semicongine", | |
| 243 apiVersion: VK_MAKE_API_VERSION(0, 1, 3, 0), | |
| 244 ) | |
| 245 createinfo = VkInstanceCreateInfo( | |
| 246 sType: VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO, | |
| 247 pApplicationInfo: addr(appinfo), | |
| 248 enabledLayerCount: layers.len.uint32, | |
| 249 ppEnabledLayerNames: layersC, | |
| 250 enabledExtensionCount: requiredExtensions.len.uint32, | |
| 251 ppEnabledExtensionNames: instanceExtensionsC | |
| 252 ) | |
| 1204 | 253 checkVkResult vkCreateInstance(addr(createinfo), nil, addr(vulkan.instance)) |
| 254 loadVulkan(vulkan.instance) | |
| 1193 | 255 |
| 256 # load extensions | |
| 257 # | |
| 258 for extension in requiredExtensions: | |
| 1204 | 259 loadExtension(vulkan.instance, $extension) |
| 260 vulkan.window = CreateWindow(appName) | |
| 261 vulkan.surface = CreateNativeSurface(vulkan.instance, vulkan.window) | |
| 1193 | 262 |
| 263 # logical device creation | |
| 264 | |
| 265 # TODO: allowing support for physical devices without hasUniformBufferStandardLayout | |
| 266 # would require us to ship different shaders, so we don't support standard layout | |
| 267 # if that will be added, check the function vulkan/shaders.nim:glslUniforms and update accordingly | |
| 268 # let hasUniformBufferStandardLayout = "VK_KHR_uniform_buffer_standard_layout" in physicalDevice.getExtensions() | |
| 269 # var deviceExtensions = @["VK_KHR_swapchain", "VK_KHR_uniform_buffer_standard_layout"] | |
| 270 var deviceExtensions = @["VK_KHR_swapchain"] | |
| 271 for extension in deviceExtensions: | |
| 1204 | 272 loadExtension(vulkan.instance, extension) |
| 1193 | 273 |
| 1199 | 274 when not defined(release): |
| 275 var debugMessengerCreateInfo = VkDebugUtilsMessengerCreateInfoEXT( | |
| 276 sType: VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT, | |
| 277 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT.items.toSeq.toBits, | |
| 278 messageType: VkDebugUtilsMessageTypeFlagBitsEXT.items.toSeq.toBits, | |
| 279 pfnUserCallback: debugCallback, | |
| 280 pUserData: nil, | |
| 281 ) | |
| 282 checkVkResult vkCreateDebugUtilsMessengerEXT( | |
| 1204 | 283 vulkan.instance, |
| 1199 | 284 addr(debugMessengerCreateInfo), |
| 285 nil, | |
| 1204 | 286 addr(vulkan.debugMessenger) |
| 1199 | 287 ) |
| 288 | |
| 1193 | 289 # get physical device and graphics queue family |
| 1204 | 290 vulkan.physicalDevice = GetBestPhysicalDevice(vulkan.instance) |
| 291 vulkan.graphicsQueueFamily = GetQueueFamily(vulkan.physicalDevice, VK_QUEUE_GRAPHICS_BIT) | |
| 1193 | 292 |
| 293 let | |
| 294 priority = cfloat(1) | |
| 295 queueInfo = VkDeviceQueueCreateInfo( | |
| 296 sType: VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, | |
| 1204 | 297 queueFamilyIndex: vulkan.graphicsQueueFamily, |
| 1193 | 298 queueCount: 1, |
| 299 pQueuePriorities: addr(priority), | |
| 300 ) | |
| 301 deviceExtensionsC = allocCStringArray(deviceExtensions) | |
| 302 defer: deallocCStringArray(deviceExtensionsC) | |
| 303 var createDeviceInfo = VkDeviceCreateInfo( | |
| 304 sType: VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, | |
| 305 queueCreateInfoCount: 1, | |
| 306 pQueueCreateInfos: addr(queueInfo), | |
| 307 enabledLayerCount: 0, | |
| 308 ppEnabledLayerNames: nil, | |
| 309 enabledExtensionCount: uint32(deviceExtensions.len), | |
| 310 ppEnabledExtensionNames: deviceExtensionsC, | |
| 311 pEnabledFeatures: nil, | |
| 312 ) | |
| 313 checkVkResult vkCreateDevice( | |
| 1204 | 314 physicalDevice = vulkan.physicalDevice, |
| 1193 | 315 pCreateInfo = addr createDeviceInfo, |
| 316 pAllocator = nil, | |
| 1204 | 317 pDevice = addr vulkan.device |
| 1193 | 318 ) |
| 1204 | 319 vulkan.graphicsQueue = svkGetDeviceQueue(vulkan.device, vulkan.graphicsQueueFamily, VK_QUEUE_GRAPHICS_BIT) |
| 1193 | 320 |
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321 proc DestroyVulkan*() = |
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322 vkDestroyDevice(vulkan.device, nil) |
| 1201 | 323 vkDestroySurfaceKHR(vulkan.instance, vulkan.surface, nil) |
| 324 vkDestroyDebugUtilsMessengerEXT(vulkan.instance, vulkan.debugMessenger, nil) | |
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325 vkDestroyInstance(vulkan.instance, nil) |
| 1226 | 326 |
| 327 proc ShowSystemCursor*() = vulkan.window.ShowSystemCursor() | |
| 328 proc HideSystemCursor*() = vulkan.window.HideSystemCursor() | |
| 329 proc Fullscreen*(): bool = fullscreen | |
| 330 proc `Fullscreen=`*(enable: bool) = | |
| 331 if enable != fullscreen: | |
| 332 fullscreen = enable | |
| 333 vulkan.window.Fullscreen(fullscreen) | |
| 334 | |
| 335 func GetAspectRatio*(swapchain: Swapchain): float32 = swapchain.width.float32 / swapchain.height.float32 | |
| 336 | |
| 337 proc MaxFramebufferSampleCount*(maxSamples = VK_SAMPLE_COUNT_8_BIT): VkSampleCountFlagBits = | |
| 338 let limits = svkGetPhysicalDeviceProperties().limits | |
| 339 let available = VkSampleCountFlags( | |
| 340 limits.framebufferColorSampleCounts.uint32 and limits.framebufferDepthSampleCounts.uint32 | |
| 341 ).toEnums | |
| 342 return min(max(available), maxSamples) | |
| 343 | |
| 344 | |
| 1228 | 345 proc `[]`*(image: Image, x, y: uint32): auto = |
| 346 assert x < image.width, &"{x} < {image.width} is not true" | |
| 347 assert y < image.height, &"{y} < {image.height} is not true" | |
| 1226 | 348 |
| 1228 | 349 image[].imagedata[y * image.width + x] |
| 1226 | 350 |
| 1228 | 351 proc `[]=`*[T](image: var Image[T], x, y: uint32, value: T) = |
| 352 assert x < image.width | |
| 353 assert y < image.height | |
| 1226 | 354 |
| 1228 | 355 image[].imagedata[y * image.width + x] = value |