Mercurial > games > semicongine
annotate semiconginev2/rendering.nim @ 1234:841e12f33c47
add: text & font rendering, not tested yet
| author | sam <sam@basx.dev> |
|---|---|
| date | Sat, 20 Jul 2024 00:03:57 +0700 |
| parents | 1cf698973dca |
| children | 69489a678141 |
| 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] |
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88 Gray = TVec1[uint8] |
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89 RGBA = TVec4[uint8] |
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90 PixelType = Gray | RGBA |
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91 |
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92 # shader related types |
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93 DescriptorSet*[T: object] = object |
| 1192 | 94 data*: T |
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95 vk: array[INFLIGHTFRAMES.int, VkDescriptorSet] |
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96 Pipeline*[TShader] = object |
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97 vk: VkPipeline |
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98 vertexShaderModule: VkShaderModule |
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99 fragmentShaderModule: VkShaderModule |
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100 layout: VkPipelineLayout |
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101 descriptorSetLayouts*: array[MAX_DESCRIPTORSETS, VkDescriptorSetLayout] |
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102 |
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103 # memory/buffer related types |
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104 MemoryBlock* = object |
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105 vk: VkDeviceMemory |
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106 size: uint64 |
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107 rawPointer: pointer # if not nil, this is mapped memory |
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108 offsetNextFree: uint64 |
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109 BufferType* = enum |
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110 VertexBuffer |
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111 VertexBufferMapped |
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112 IndexBuffer |
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113 IndexBufferMapped |
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114 UniformBuffer |
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115 UniformBufferMapped |
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116 Buffer* = object |
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117 vk: VkBuffer |
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118 size: uint64 |
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119 rawPointer: pointer # if not nil, buffer is using mapped memory |
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120 offsetNextFree: uint64 |
| 1231 | 121 memoryOffset: uint64 |
| 122 memory: VkDeviceMemory | |
| 1228 | 123 Image*[T: PixelType] = object |
| 1210 | 124 width*: uint32 |
| 125 height*: uint32 | |
| 126 interpolation*: VkFilter = VK_FILTER_LINEAR | |
| 127 data*: seq[T] | |
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128 vk*: VkImage |
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129 imageview*: VkImageView |
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130 sampler*: VkSampler |
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131 isRenderTarget*: bool = false |
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132 samples*: VkSampleCountFlagBits = VK_SAMPLE_COUNT_1_BIT |
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133 GPUArray*[T: SupportedGPUType, TBuffer: static BufferType] = object |
| 1192 | 134 data*: seq[T] |
| 1202 | 135 buffer*: Buffer |
| 136 offset*: uint64 | |
| 1210 | 137 GPUValue*[T: object, TBuffer: static BufferType] = object |
| 1192 | 138 data*: T |
| 1231 | 139 buffer*: Buffer |
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140 offset: uint64 |
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141 GPUData = GPUArray | GPUValue |
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142 |
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143 RenderData* = object |
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144 descriptorPool: VkDescriptorPool |
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145 memory: array[VK_MAX_MEMORY_TYPES.int, seq[MemoryBlock]] |
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146 buffers: array[BufferType, seq[Buffer]] |
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147 images: seq[VkImage] |
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148 imageViews: seq[VkImageView] |
| 1201 | 149 samplers: seq[VkSampler] |
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150 |
| 1192 | 151 template ForDescriptorFields(shader: typed, fieldname, valuename, typename, countname, bindingNumber, body: untyped): untyped = |
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152 var `bindingNumber` {.inject.} = 0'u32 |
| 1192 | 153 for theFieldname, value in fieldPairs(shader): |
| 1228 | 154 when typeof(value) is Image: |
| 1192 | 155 block: |
| 156 const `fieldname` {.inject.} = theFieldname | |
| 157 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER | |
| 158 const `countname` {.inject.} = 1'u32 | |
| 159 let `valuename` {.inject.} = value | |
| 160 body | |
| 161 `bindingNumber`.inc | |
| 1210 | 162 elif typeof(value) is GPUValue: |
| 1192 | 163 block: |
| 164 const `fieldname` {.inject.} = theFieldname | |
| 165 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER | |
| 166 const `countname` {.inject.} = 1'u32 | |
| 167 let `valuename` {.inject.} = value | |
| 168 body | |
| 169 `bindingNumber`.inc | |
| 170 elif typeof(value) is array: | |
| 1228 | 171 when elementType(value) is Image: |
| 1192 | 172 block: |
| 173 const `fieldname` {.inject.} = theFieldname | |
| 174 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER | |
| 175 const `countname` {.inject.} = uint32(typeof(value).len) | |
| 176 let `valuename` {.inject.} = value | |
| 177 body | |
| 178 `bindingNumber`.inc | |
| 1210 | 179 elif elementType(value) is GPUValue: |
| 1192 | 180 block: |
| 181 const `fieldname` {.inject.} = theFieldname | |
| 182 const `typename` {.inject.} = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER | |
| 1210 | 183 const `countname` {.inject.} = len(value).uint32 |
| 1192 | 184 let `valuename` {.inject.} = value |
| 185 body | |
| 186 `bindingNumber`.inc | |
| 187 else: | |
| 188 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 1210 | 189 else: |
| 190 {.error: "Unsupported descriptor type: " & typetraits.name(typeof(value)).} | |
| 1192 | 191 |
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192 include ./rendering/vulkan_wrappers |
| 1199 | 193 include ./rendering/renderpasses |
| 1194 | 194 include ./rendering/swapchain |
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195 include ./rendering/shaders |
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196 include ./rendering/renderer |
| 1193 | 197 |
| 1199 | 198 proc debugCallback( |
| 199 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT, | |
| 200 messageTypes: VkDebugUtilsMessageTypeFlagsEXT, | |
| 201 pCallbackData: ptr VkDebugUtilsMessengerCallbackDataEXT, | |
| 202 userData: pointer | |
| 203 ): VkBool32 {.cdecl.} = | |
| 204 const LOG_LEVEL_MAPPING = { | |
| 205 VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT: lvlDebug, | |
| 206 VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT: lvlInfo, | |
| 207 VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT: lvlWarn, | |
| 208 VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: lvlError, | |
| 209 }.toTable | |
| 210 log LOG_LEVEL_MAPPING[messageSeverity], &"{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 211 if messageSeverity == VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: | |
| 212 stderr.writeLine "-----------------------------------" | |
| 213 stderr.write getStackTrace() | |
| 214 stderr.writeLine LOG_LEVEL_MAPPING[messageSeverity], &"{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 215 stderr.writeLine "-----------------------------------" | |
| 216 let errorMsg = getStackTrace() & &"\n{toEnums messageTypes}: {pCallbackData.pMessage}" | |
| 217 raise newException(Exception, errorMsg) | |
| 218 return false | |
| 1193 | 219 |
| 1204 | 220 proc InitVulkan*(appName: string = "semicongine app") = |
| 1193 | 221 |
| 222 # instance creation | |
| 1198 | 223 |
| 224 # enagle all kind of debug stuff | |
| 1193 | 225 when not defined(release): |
| 226 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface", "VK_EXT_debug_utils"] | |
| 227 let layers: seq[string] = if hasValidationLayer(): @["VK_LAYER_KHRONOS_validation"] else: @[] | |
| 1198 | 228 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 | 229 else: |
| 230 let requiredExtensions = REQUIRED_PLATFORM_EXTENSIONS & @["VK_KHR_surface"] | |
| 231 let layers: seq[string] | |
| 232 | |
| 233 var | |
| 234 layersC = allocCStringArray(layers) | |
| 235 instanceExtensionsC = allocCStringArray(requiredExtensions) | |
| 236 defer: | |
| 237 deallocCStringArray(layersC) | |
| 238 deallocCStringArray(instanceExtensionsC) | |
| 239 | |
| 240 var | |
| 241 appinfo = VkApplicationInfo( | |
| 242 sType: VK_STRUCTURE_TYPE_APPLICATION_INFO, | |
| 243 pApplicationName: appName, | |
| 244 pEngineName: "semicongine", | |
| 245 apiVersion: VK_MAKE_API_VERSION(0, 1, 3, 0), | |
| 246 ) | |
| 247 createinfo = VkInstanceCreateInfo( | |
| 248 sType: VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO, | |
| 249 pApplicationInfo: addr(appinfo), | |
| 250 enabledLayerCount: layers.len.uint32, | |
| 251 ppEnabledLayerNames: layersC, | |
| 252 enabledExtensionCount: requiredExtensions.len.uint32, | |
| 253 ppEnabledExtensionNames: instanceExtensionsC | |
| 254 ) | |
| 1204 | 255 checkVkResult vkCreateInstance(addr(createinfo), nil, addr(vulkan.instance)) |
| 256 loadVulkan(vulkan.instance) | |
| 1193 | 257 |
| 258 # load extensions | |
| 259 # | |
| 260 for extension in requiredExtensions: | |
| 1204 | 261 loadExtension(vulkan.instance, $extension) |
| 262 vulkan.window = CreateWindow(appName) | |
| 263 vulkan.surface = CreateNativeSurface(vulkan.instance, vulkan.window) | |
| 1193 | 264 |
| 265 # logical device creation | |
| 266 | |
| 267 # TODO: allowing support for physical devices without hasUniformBufferStandardLayout | |
| 268 # would require us to ship different shaders, so we don't support standard layout | |
| 269 # if that will be added, check the function vulkan/shaders.nim:glslUniforms and update accordingly | |
| 270 # let hasUniformBufferStandardLayout = "VK_KHR_uniform_buffer_standard_layout" in physicalDevice.getExtensions() | |
| 271 # var deviceExtensions = @["VK_KHR_swapchain", "VK_KHR_uniform_buffer_standard_layout"] | |
| 272 var deviceExtensions = @["VK_KHR_swapchain"] | |
| 273 for extension in deviceExtensions: | |
| 1204 | 274 loadExtension(vulkan.instance, extension) |
| 1193 | 275 |
| 1199 | 276 when not defined(release): |
| 277 var debugMessengerCreateInfo = VkDebugUtilsMessengerCreateInfoEXT( | |
| 278 sType: VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT, | |
| 279 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT.items.toSeq.toBits, | |
| 280 messageType: VkDebugUtilsMessageTypeFlagBitsEXT.items.toSeq.toBits, | |
| 281 pfnUserCallback: debugCallback, | |
| 282 pUserData: nil, | |
| 283 ) | |
| 284 checkVkResult vkCreateDebugUtilsMessengerEXT( | |
| 1204 | 285 vulkan.instance, |
| 1199 | 286 addr(debugMessengerCreateInfo), |
| 287 nil, | |
| 1204 | 288 addr(vulkan.debugMessenger) |
| 1199 | 289 ) |
| 290 | |
| 1193 | 291 # get physical device and graphics queue family |
| 1204 | 292 vulkan.physicalDevice = GetBestPhysicalDevice(vulkan.instance) |
| 293 vulkan.graphicsQueueFamily = GetQueueFamily(vulkan.physicalDevice, VK_QUEUE_GRAPHICS_BIT) | |
| 1193 | 294 |
| 295 let | |
| 296 priority = cfloat(1) | |
| 297 queueInfo = VkDeviceQueueCreateInfo( | |
| 298 sType: VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, | |
| 1204 | 299 queueFamilyIndex: vulkan.graphicsQueueFamily, |
| 1193 | 300 queueCount: 1, |
| 301 pQueuePriorities: addr(priority), | |
| 302 ) | |
| 303 deviceExtensionsC = allocCStringArray(deviceExtensions) | |
| 304 defer: deallocCStringArray(deviceExtensionsC) | |
| 305 var createDeviceInfo = VkDeviceCreateInfo( | |
| 306 sType: VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, | |
| 307 queueCreateInfoCount: 1, | |
| 308 pQueueCreateInfos: addr(queueInfo), | |
| 309 enabledLayerCount: 0, | |
| 310 ppEnabledLayerNames: nil, | |
| 311 enabledExtensionCount: uint32(deviceExtensions.len), | |
| 312 ppEnabledExtensionNames: deviceExtensionsC, | |
| 313 pEnabledFeatures: nil, | |
| 314 ) | |
| 315 checkVkResult vkCreateDevice( | |
| 1204 | 316 physicalDevice = vulkan.physicalDevice, |
| 1193 | 317 pCreateInfo = addr createDeviceInfo, |
| 318 pAllocator = nil, | |
| 1204 | 319 pDevice = addr vulkan.device |
| 1193 | 320 ) |
| 1204 | 321 vulkan.graphicsQueue = svkGetDeviceQueue(vulkan.device, vulkan.graphicsQueueFamily, VK_QUEUE_GRAPHICS_BIT) |
| 1193 | 322 |
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323 proc DestroyVulkan*() = |
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324 vkDestroyDevice(vulkan.device, nil) |
| 1201 | 325 vkDestroySurfaceKHR(vulkan.instance, vulkan.surface, nil) |
| 326 vkDestroyDebugUtilsMessengerEXT(vulkan.instance, vulkan.debugMessenger, nil) | |
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327 vkDestroyInstance(vulkan.instance, nil) |
| 1226 | 328 |
| 329 proc ShowSystemCursor*() = vulkan.window.ShowSystemCursor() | |
| 330 proc HideSystemCursor*() = vulkan.window.HideSystemCursor() | |
| 331 proc Fullscreen*(): bool = fullscreen | |
| 332 proc `Fullscreen=`*(enable: bool) = | |
| 333 if enable != fullscreen: | |
| 334 fullscreen = enable | |
| 335 vulkan.window.Fullscreen(fullscreen) | |
| 336 | |
| 337 func GetAspectRatio*(swapchain: Swapchain): float32 = swapchain.width.float32 / swapchain.height.float32 | |
| 338 | |
| 339 proc MaxFramebufferSampleCount*(maxSamples = VK_SAMPLE_COUNT_8_BIT): VkSampleCountFlagBits = | |
| 340 let limits = svkGetPhysicalDeviceProperties().limits | |
| 341 let available = VkSampleCountFlags( | |
| 342 limits.framebufferColorSampleCounts.uint32 and limits.framebufferDepthSampleCounts.uint32 | |
| 343 ).toEnums | |
| 344 return min(max(available), maxSamples) | |
| 345 | |
| 346 | |
| 1228 | 347 proc `[]`*(image: Image, x, y: uint32): auto = |
| 348 assert x < image.width, &"{x} < {image.width} is not true" | |
| 349 assert y < image.height, &"{y} < {image.height} is not true" | |
| 1226 | 350 |
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351 image.data[y * image.width + x] |
| 1226 | 352 |
| 1228 | 353 proc `[]=`*[T](image: var Image[T], x, y: uint32, value: T) = |
| 354 assert x < image.width | |
| 355 assert y < image.height | |
| 1226 | 356 |
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357 image.data[y * image.width + x] = value |