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> |
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date | Thu, 18 Jul 2024 21:32:41 +0700 |
parents | 4e465583ea32 |
children | 70f6c1cfe005 |
rev | line source |
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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 |
1190
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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 |