Mercurial > games > semicongine

annotate src/zamikongine/vulkan_helpers.nim @ 39:0cb294c5d2fd

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fix: hello cube, add: run_all command
author Sam <sam@basx.dev>
date Wed, 18 Jan 2023 13:49:12 +0700
parents c3c963e7c1a6
children
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diff changeset
1 import std/tables
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2 import std/strutils
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3 import std/strformat
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4 import std/logging
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5 import std/macros
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6
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7 import ./vulkan
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8 import ./window
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9
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10 template checkVkResult*(call: untyped) =
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11 when defined(release):
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12 discard call
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13 else:
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14 # yes, a bit cheap, but this is only for nice debug output
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15 var callstr = astToStr(call).replace("\n", "")
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16 while callstr.find(" ") >= 0:
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17 callstr = callstr.replace(" ", " ")
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18 debug "CALLING vulkan: ", callstr
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19 let value = call
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20 if value != VK_SUCCESS:
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21 error "Vulkan error: ", astToStr(call), " returned ", $value
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22 raise newException(Exception, "Vulkan error: " & astToStr(call) & " returned " & $value)
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24 # the included code need checkVkResult, therefore having the template above
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25 when defined(linux):
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26 include ./platform/linux/vulkan
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27 when defined(windows):
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28 include ./platform/windows/vulkan
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30 const ENABLEVULKANVALIDATIONLAYERS* = not defined(release)
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31
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32 func addrOrNil[T](obj: var openArray[T]): ptr T =
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33 if obj.len > 0: addr(obj[0]) else: nil
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35 func VK_MAKE_API_VERSION*(variant: uint32, major: uint32, minor: uint32, patch: uint32): uint32 {.compileTime.} =
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36 (variant shl 29) or (major shl 22) or (minor shl 12) or patch
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39 func filterForSurfaceFormat*(formats: seq[VkSurfaceFormatKHR]): seq[VkSurfaceFormatKHR] =
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40 for format in formats:
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41 if format.format == VK_FORMAT_B8G8R8A8_SRGB and format.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR:
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42 result.add(format)
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43
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44 func getSuitableSurfaceFormat*(formats: seq[VkSurfaceFormatKHR]): VkSurfaceFormatKHR =
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45 let usableSurfaceFormats = filterForSurfaceFormat(formats)
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46 if len(usableSurfaceFormats) == 0:
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47 raise newException(Exception, "No suitable surface formats found")
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48 return usableSurfaceFormats[0]
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50
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51 func cleanString*(str: openArray[char]): string =
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52 for i in 0 ..< len(str):
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53 if str[i] == char(0):
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54 result = join(str[0 ..< i])
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55 break
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56
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57 proc getInstanceExtensions*(): seq[string] =
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58 var extensionCount: uint32
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59 checkVkResult vkEnumerateInstanceExtensionProperties(nil, addr(extensionCount), nil)
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60 var extensions = newSeq[VkExtensionProperties](extensionCount)
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61 checkVkResult vkEnumerateInstanceExtensionProperties(nil, addr(extensionCount), addrOrNil(extensions))
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62
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63 for extension in extensions:
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64 result.add(cleanString(extension.extensionName))
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66
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67 proc getDeviceExtensions*(device: VkPhysicalDevice): seq[string] =
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68 var extensionCount: uint32
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69 checkVkResult vkEnumerateDeviceExtensionProperties(device, nil, addr(extensionCount), nil)
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70 var extensions = newSeq[VkExtensionProperties](extensionCount)
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71 checkVkResult vkEnumerateDeviceExtensionProperties(device, nil, addr(extensionCount), addrOrNil(extensions))
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73 for extension in extensions:
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74 result.add(cleanString(extension.extensionName))
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77 proc getValidationLayers*(): seq[string] =
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78 var n_layers: uint32
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79 checkVkResult vkEnumerateInstanceLayerProperties(addr(n_layers), nil)
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80 var layers = newSeq[VkLayerProperties](n_layers)
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81 checkVkResult vkEnumerateInstanceLayerProperties(addr(n_layers), addrOrNil(layers))
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82
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83 for layer in layers:
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84 result.add(cleanString(layer.layerName))
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85
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86
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87 proc getVulkanPhysicalDevices*(instance: VkInstance): seq[VkPhysicalDevice] =
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88 var n_devices: uint32
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89 checkVkResult vkEnumeratePhysicalDevices(instance, addr(n_devices), nil)
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90 result = newSeq[VkPhysicalDevice](n_devices)
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91 checkVkResult vkEnumeratePhysicalDevices(instance, addr(n_devices), addrOrNil(result))
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93
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94 proc getQueueFamilies*(device: VkPhysicalDevice): seq[VkQueueFamilyProperties] =
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95 var n_queuefamilies: uint32
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96 vkGetPhysicalDeviceQueueFamilyProperties(device, addr(n_queuefamilies), nil)
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97 result = newSeq[VkQueueFamilyProperties](n_queuefamilies)
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98 vkGetPhysicalDeviceQueueFamilyProperties(device, addr(n_queuefamilies), addrOrNil(result))
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99
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100
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101 proc getDeviceSurfaceFormats*(device: VkPhysicalDevice, surface: VkSurfaceKHR): seq[VkSurfaceFormatKHR] =
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102 var n_formats: uint32
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103 checkVkResult vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, addr(n_formats), nil);
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104 result = newSeq[VkSurfaceFormatKHR](n_formats)
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105 checkVkResult vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, addr(n_formats), addrOrNil(result))
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106
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107
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108 proc getDeviceSurfacePresentModes*(device: VkPhysicalDevice, surface: VkSurfaceKHR): seq[VkPresentModeKHR] =
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109 var n_modes: uint32
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110 checkVkResult vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, addr(n_modes), nil);
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111 result = newSeq[VkPresentModeKHR](n_modes)
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112 checkVkResult vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, addr(n_modes), addrOrNil(result))
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113
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114
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115 proc getSwapChainImages*(device: VkDevice, swapChain: VkSwapchainKHR): seq[VkImage] =
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116 var n_images: uint32
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117 checkVkResult vkGetSwapchainImagesKHR(device, swapChain, addr(n_images), nil);
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118 result = newSeq[VkImage](n_images)
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119 checkVkResult vkGetSwapchainImagesKHR(device, swapChain, addr(n_images), addrOrNil(result));
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120
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121
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122 func getPresentMode*(modes: seq[VkPresentModeKHR]): VkPresentModeKHR =
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123 let preferredModes = [
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124 VK_PRESENT_MODE_MAILBOX_KHR, # triple buffering
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125 VK_PRESENT_MODE_FIFO_RELAXED_KHR, # double duffering
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126 VK_PRESENT_MODE_FIFO_KHR, # double duffering
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127 VK_PRESENT_MODE_IMMEDIATE_KHR, # single buffering
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128 ]
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129 for preferredMode in preferredModes:
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130 for mode in modes:
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131 if preferredMode == mode:
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132 return mode
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133 # should never be reached, but seems to be garuanteed by vulkan specs to always be available
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134 return VK_PRESENT_MODE_FIFO_KHR
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135
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136
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137 proc createVulkanInstance*(vulkanVersion: uint32): VkInstance =
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138
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139 var requiredExtensions = @["VK_KHR_surface".cstring] & REQUIRED_PLATFORM_EXTENSIONS
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140 when ENABLEVULKANVALIDATIONLAYERS:
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141 requiredExtensions.add("VK_EXT_debug_utils".cstring)
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142
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143 let availableExtensions = getInstanceExtensions()
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144 for extension in requiredExtensions:
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145 assert $extension in availableExtensions, $extension
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146
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147 let availableLayers = getValidationLayers()
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148 var usableLayers = newSeq[cstring]()
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149
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150 when ENABLEVULKANVALIDATIONLAYERS:
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151 const desiredLayers = ["VK_LAYER_KHRONOS_validation".cstring, "VK_LAYER_MESA_overlay".cstring]
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152 else:
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153 const desiredLayers = ["VK_LAYER_MESA_overlay".cstring]
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154 for layer in desiredLayers:
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155 if $layer in availableLayers:
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156 usableLayers.add(layer)
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157
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158 echo "Available validation layers: ", availableLayers
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159 echo "Using validation layers: ", usableLayers
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160 echo "Available extensions: ", availableExtensions
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161 echo "Using extensions: ", requiredExtensions
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162
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163 var appinfo = VkApplicationInfo(
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164 sType: VK_STRUCTURE_TYPE_APPLICATION_INFO,
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165 pApplicationName: "Hello Triangle",
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166 pEngineName: "Custom engine",
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167 apiVersion: vulkanVersion,
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168 )
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169 var createinfo = VkInstanceCreateInfo(
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170 sType: VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
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171 pApplicationInfo: addr(appinfo),
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172 enabledLayerCount: usableLayers.len.uint32,
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173 ppEnabledLayerNames: cast[ptr UncheckedArray[cstring]](addrOrNil(usableLayers)),
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174 enabledExtensionCount: requiredExtensions.len.uint32,
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175 ppEnabledExtensionNames: cast[ptr UncheckedArray[cstring]](addr(requiredExtensions[0]))
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176 )
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177 checkVkResult vkCreateInstance(addr(createinfo), nil, addr(result))
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178
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179 loadVK_KHR_surface()
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180 load_platform_extensions()
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181 loadVK_KHR_swapchain()
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182 when ENABLEVULKANVALIDATIONLAYERS:
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183 loadVK_EXT_debug_utils(result)
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184
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185
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186 proc getVulcanDevice*(
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187 physicalDevice: var VkPhysicalDevice,
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188 features: var VkPhysicalDeviceFeatures,
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189 graphicsQueueFamily: uint32,
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190 presentationQueueFamily: uint32,
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191 ): (VkDevice, VkQueue, VkQueue) =
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192 # setup queue and device
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193 # TODO: need check this, possibly wrong logic, see Vulkan tutorial
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194 var priority = 1.0'f32
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195 var queueCreateInfo = [
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196 VkDeviceQueueCreateInfo(
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197 sType: VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO,
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198 queueFamilyIndex: graphicsQueueFamily,
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199 queueCount: 1,
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200 pQueuePriorities: addr(priority),
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201 ),
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202 ]
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203
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204 var requiredExtensions = ["VK_KHR_swapchain".cstring]
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205 var deviceCreateInfo = VkDeviceCreateInfo(
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206 sType: VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
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207 queueCreateInfoCount: uint32(queueCreateInfo.len),
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208 pQueueCreateInfos: addrOrNil(queueCreateInfo),
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209 pEnabledFeatures: addr(features),
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210 enabledExtensionCount: requiredExtensions.len.uint32,
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211 ppEnabledExtensionNames: cast[ptr UncheckedArray[cstring]](addr(requiredExtensions))
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212 )
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213 checkVkResult vkCreateDevice(physicalDevice, addr(deviceCreateInfo), nil, addr(result[0]))
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214 vkGetDeviceQueue(result[0], graphicsQueueFamily, 0'u32, addr(result[1]));
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215 vkGetDeviceQueue(result[0], presentationQueueFamily, 0'u32, addr(result[2]));
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216
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217 proc debugCallback*(
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218 messageSeverity: VkDebugUtilsMessageSeverityFlagBitsEXT,
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219 messageTypes: VkDebugUtilsMessageTypeFlagsEXT,
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220 pCallbackData: VkDebugUtilsMessengerCallbackDataEXT,
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221 userData: pointer
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222 ): VkBool32 {.cdecl.} =
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223 echo &"{messageSeverity}: {VkDebugUtilsMessageTypeFlagBitsEXT(messageTypes)}: {pCallbackData.pMessage}"
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224 return VK_FALSE
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225
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226 proc getSurfaceCapabilities*(device: VkPhysicalDevice, surface: VkSurfaceKHR): VkSurfaceCapabilitiesKHR =
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227 checkVkResult device.vkGetPhysicalDeviceSurfaceCapabilitiesKHR(surface, addr(result))