Mercurial > games > semicongine

annotate semiconginev2/old/engine.nim @ 1231:70f6c1cfe005

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add: incomplete cube demo
author sam <sam@basx.dev>
date Thu, 18 Jul 2024 23:48:57 +0700
parents 56781cc0fc7c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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diff changeset
1 import std/compilesettings
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2 import std/algorithm
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3 import std/monotimes
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4 import std/options
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5 import std/strformat
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6 import std/sequtils
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7 import std/logging
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8 import std/os
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9
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10 import ./platform/window
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11
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12 import ./core
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13 import ./vulkan/instance
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14 import ./vulkan/device
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15 import ./vulkan/physicaldevice
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16 import ./vulkan/shader
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17
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18 import ./scene
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19 import ./material
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20 import ./renderer
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21 import ./audio
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22 import ./input
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23 import ./text
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24 import ./panel
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25
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26 import ./steam
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27
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28 const COUNT_N_RENDERTIMES = 199
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29
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30 type
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31 EngineState* = enum
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32 Starting
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33 Running
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34 Shutdown
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35 Engine* = object
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36 applicationName: string
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37 showFps: bool
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38 device: Device
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39 debugger: Debugger
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40 instance: Instance
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41 window: NativeWindow
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42 renderer: Option[Renderer]
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43 fullscreen: bool
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44 lastNRenderTimes: array[COUNT_N_RENDERTIMES, int64]
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45 currentRenderTimeI: int = 0
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46
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47 # forward declarations
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48 func GetAspectRatio*(engine: Engine): float32
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49
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50 proc Destroy*(engine: var Engine) =
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51 checkVkResult engine.device.vk.vkDeviceWaitIdle()
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52 if engine.renderer.isSome:
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53 engine.renderer.get.Destroy()
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54 engine.device.Destroy()
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55 if engine.debugger.messenger.Valid:
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56 engine.debugger.Destroy()
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57 engine.window.Destroy()
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58 engine.instance.Destroy()
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59 if SteamAvailable():
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60 SteamShutdown()
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61
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62
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63 proc InitEngine*(
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64 applicationName = querySetting(projectName),
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65 showFps = DEBUG,
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66 vulkanVersion = VK_MAKE_API_VERSION(0, 1, 3, 0),
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67 vulkanLayers: openArray[string] = [],
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68 ): Engine =
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69 echo "Set log level to ", ENGINE_LOGLEVEL
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70 setLogFilter(ENGINE_LOGLEVEL)
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71
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72 TrySteamInit()
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73 if SteamAvailable():
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74 echo "Starting with Steam"
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75 else:
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76 echo "Starting without Steam"
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77
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78 result.applicationName = applicationName
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79 result.showFps = showFps
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80 result.window = CreateWindow(result.applicationName)
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81
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82 var
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83 layers = @vulkanLayers
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84 instanceExtensions: seq[string]
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85
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86 if DEBUG:
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87 instanceExtensions.add "VK_EXT_debug_utils"
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88 layers.add "VK_LAYER_KHRONOS_validation"
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89 # This stuff might be usefull if we one day to smart GPU memory allocation,
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90 # but right now it just clobbers up the console log:
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91 # putEnv("VK_LAYER_ENABLES", "VK_VALIDATION_FEATURE_ENABLE_BEST_PRACTICES_EXT")
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92 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")
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93
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94 result.instance = result.window.CreateInstance(
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95 vulkanVersion = vulkanVersion,
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96 instanceExtensions = instanceExtensions,
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97 layers = layers.deduplicate(),
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98 )
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99 if DEBUG:
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100 result.debugger = result.instance.CreateDebugMessenger()
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101 # create devices
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102 let selectedPhysicalDevice = result.instance.GetPhysicalDevices().FilterBestGraphics()
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103 result.device = result.instance.CreateDevice(
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104 selectedPhysicalDevice,
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105 enabledExtensions = @[],
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106 selectedPhysicalDevice.FilterForGraphicsPresentationQueues()
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107 )
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108 StartMixerThread()
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109
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110 proc InitRenderer*(
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111 engine: var Engine,
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112 shaders: openArray[(MaterialType, ShaderConfiguration)],
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113 clearColor = NewVec4f(0, 0, 0, 0),
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114 backFaceCulling = true,
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115 vSync = false,
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116 inFlightFrames = 2,
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117 samples = VK_SAMPLE_COUNT_1_BIT,
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118 ) =
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119
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120 assert not engine.renderer.isSome
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121 var allShaders = @shaders
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122 if not shaders.mapIt(it[0]).contains(EMPTY_MATERIAL):
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123 allShaders.add (EMPTY_MATERIAL, EMPTY_SHADER)
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124 if not shaders.mapIt(it[0]).contains(PANEL_MATERIAL_TYPE):
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125 allShaders.add (PANEL_MATERIAL_TYPE, PANEL_SHADER)
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126 if not shaders.mapIt(it[0]).contains(TEXT_MATERIAL_TYPE):
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127 allShaders.add (TEXT_MATERIAL_TYPE, TEXT_SHADER)
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128 engine.renderer = some(engine.device.InitRenderer(
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129 shaders = allShaders,
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130 clearColor = clearColor,
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131 backFaceCulling = backFaceCulling,
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132 vSync = vSync,
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133 inFlightFrames = inFlightFrames,
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134 samples = samples,
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135 ))
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136
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137 proc InitRenderer*(engine: var Engine, clearColor = NewVec4f(0, 0, 0, 0), vSync = false) =
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138 checkVkResult engine.device.vk.vkDeviceWaitIdle()
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139 engine.InitRenderer(@[], clearColor, vSync = vSync)
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140 checkVkResult engine.device.vk.vkDeviceWaitIdle()
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141
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142 proc LoadScene*(engine: var Engine, scene: var Scene) =
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143 debug &"start loading scene '{scene.name}'"
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144 assert engine.renderer.isSome
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145 assert not scene.loaded
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146 checkVkResult engine.device.vk.vkDeviceWaitIdle()
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147 scene.AddShaderGlobal(ASPECT_RATIO_ATTRIBUTE, engine.GetAspectRatio)
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148 engine.renderer.get.SetupDrawableBuffers(scene)
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parents: 1138
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149 engine.renderer.get.UpdateMeshData(scene, forceAll = true)
114f395b9144 did: finish refactoring and updated all tests accordingly
sam <sam@basx.dev>
parents: 1138
diff changeset
150 engine.renderer.get.UpdateUniformData(scene, forceAll = true)
956
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sam <sam@basx.dev>
parents: 951
diff changeset
151 checkVkResult engine.device.vk.vkDeviceWaitIdle()
963
9d3f6d742e65 add: some more debug log
sam <sam@basx.dev>
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152 debug &"done loading scene '{scene.name}'"
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Sam <sam@basx.dev>
parents:
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153
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parents: 1139
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154 proc UnloadScene*(engine: var Engine, scene: Scene) =
963
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parents: 956
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155 debug &"unload scene '{scene.name}'"
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sam <sam@basx.dev>
parents: 1138
diff changeset
156 engine.renderer.get.Destroy(scene)
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Sam <sam@basx.dev>
parents:
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157
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sam <sam@basx.dev>
parents: 1136
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158 proc RenderScene*(engine: var Engine, scene: var Scene) =
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159 if WindowIsMinimized():
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sam@sambook-windows.localdomain
parents: 1153
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160 return
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sam <sam@basx.dev>
parents: 1136
diff changeset
161 assert engine.renderer.isSome, "Renderer has not yet been initialized, call 'engine.InitRenderer' first"
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sam <sam@basx.dev>
parents: 1138
diff changeset
162 assert engine.renderer.get.HasScene(scene), &"Scene '{scene.name}' has not been loaded yet"
950
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sam <sam@basx.dev>
parents: 949
diff changeset
163 let t0 = getMonoTime()
951
c6213a794ab0 fix: bad syncing mechanism, much better now (I think)
sam <sam@basx.dev>
parents: 950
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164
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sam@sambook-windows.localdomain
parents: 1153
diff changeset
165 if engine.renderer.get.StartNewFrame():
dd757eb5ca86 fix: minimizing window on windows breaks everything, also: do not try to acquire next frame for inifinity
sam@sambook-windows.localdomain
parents: 1153
diff changeset
166 scene.SetShaderGlobal(ASPECT_RATIO_ATTRIBUTE, engine.GetAspectRatio)
dd757eb5ca86 fix: minimizing window on windows breaks everything, also: do not try to acquire next frame for inifinity
sam@sambook-windows.localdomain
parents: 1153
diff changeset
167 engine.renderer.get.UpdateMeshData(scene)
dd757eb5ca86 fix: minimizing window on windows breaks everything, also: do not try to acquire next frame for inifinity
sam@sambook-windows.localdomain
parents: 1153
diff changeset
168 engine.renderer.get.UpdateUniformData(scene)
dd757eb5ca86 fix: minimizing window on windows breaks everything, also: do not try to acquire next frame for inifinity
sam@sambook-windows.localdomain
parents: 1153
diff changeset
169 engine.renderer.get.Render(scene)
840
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Sam <sam@basx.dev>
parents:
diff changeset
170
950
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
171 if engine.showFps:
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sam <sam@basx.dev>
parents: 949
diff changeset
172 let nanoSecs = getMonoTime().ticks - t0.ticks
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
173 engine.lastNRenderTimes[engine.currentRenderTimeI] = nanoSecs
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
174 inc engine.currentRenderTimeI
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
175 if engine.currentRenderTimeI >= engine.lastNRenderTimes.len:
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
176 engine.currentRenderTimeI = 0
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
177 engine.lastNRenderTimes.sort
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
178 let
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
179 min = float(engine.lastNRenderTimes[0]) / 1_000_000
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
180 median = float(engine.lastNRenderTimes[engine.lastNRenderTimes.len div 2]) / 1_000_000
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
181 max = float(engine.lastNRenderTimes[^1]) / 1_000_000
1139
114f395b9144 did: finish refactoring and updated all tests accordingly
sam <sam@basx.dev>
parents: 1138
diff changeset
182 engine.window.SetTitle(&"{engine.applicationName} ({min:.2}, {median:.2}, {max:.2})")
950
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
183
fe48b091e83f did: tons of small improvments, on the way to make GPU sync (more) correct I guess
sam <sam@basx.dev>
parents: 949
diff changeset
184
840
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Sam <sam@basx.dev>
parents:
diff changeset
185 # wrappers for internal things
1022
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sam <sam@basx.dev>
parents: 1021
diff changeset
186 func GpuDevice*(engine: Engine): Device = engine.device
f888ac4825b8 did: refactor input system, did some renaming, add quering of keys in key-value-store
sam <sam@basx.dev>
parents: 1021
diff changeset
187 func GetWindow*(engine: Engine): auto = engine.window
1139
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sam <sam@basx.dev>
parents: 1138
diff changeset
188 func GetAspectRatio*(engine: Engine): float32 = engine.GetWindow().Size[0] / engine.GetWindow().Size[1]
1153
9bdab0729b99 fix: not a function
sam@sambook-windows.localdomain
parents: 1142
diff changeset
189 proc ShowSystemCursor*(engine: Engine) = engine.window.ShowSystemCursor()
9bdab0729b99 fix: not a function
sam@sambook-windows.localdomain
parents: 1142
diff changeset
190 proc HideSystemCursor*(engine: Engine) = engine.window.HideSystemCursor()
1142
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sam <sam@basx.dev>
parents: 1139
diff changeset
191 func Fullscreen*(engine: Engine): bool = engine.fullscreen
1022
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sam <sam@basx.dev>
parents: 1021
diff changeset
192 proc `Fullscreen=`*(engine: var Engine, enable: bool) =
862
e5d7e3f6826e fix: do not try to change fullscreen if already in correct status
sam <sam@basx.dev>
parents: 859
diff changeset
193 if enable != engine.fullscreen:
e5d7e3f6826e fix: do not try to change fullscreen if already in correct status
sam <sam@basx.dev>
parents: 859
diff changeset
194 engine.fullscreen = enable
1139
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sam <sam@basx.dev>
parents: 1138
diff changeset
195 engine.window.Fullscreen(engine.fullscreen)
872
1ee397815b0b did: image & font refactoring, add texture-atlas-packing
Sam <sam@basx.dev>
parents: 862
diff changeset
196
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sam <sam@basx.dev>
parents: 1021
diff changeset
197 func Limits*(engine: Engine): VkPhysicalDeviceLimits =
f888ac4825b8 did: refactor input system, did some renaming, add quering of keys in key-value-store
sam <sam@basx.dev>
parents: 1021
diff changeset
198 engine.device.physicalDevice.properties.limits
895
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Sam <sam@basx.dev>
parents: 894
diff changeset
199
1168
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sam <sam@basx.dev>
parents: 1167
diff changeset
200 func MaxFramebufferSampleCount*(engine: Engine, maxSamples = VK_SAMPLE_COUNT_8_BIT): VkSampleCountFlagBits =
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sam <sam@basx.dev>
parents: 1167
diff changeset
201 let available = VkSampleCountFlags(
73eaec7e1690 add: function to get max supported sampling count
sam <sam@basx.dev>
parents: 1167
diff changeset
202 engine.Limits.framebufferColorSampleCounts.uint32 and engine.Limits.framebufferDepthSampleCounts.uint32
73eaec7e1690 add: function to get max supported sampling count
sam <sam@basx.dev>
parents: 1167
diff changeset
203 ).toEnums
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sam <sam@basx.dev>
parents: 1167
diff changeset
204 return min(max(available), maxSamples)
73eaec7e1690 add: function to get max supported sampling count
sam <sam@basx.dev>
parents: 1167
diff changeset
205
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sam <sam@basx.dev>
parents: 1021
diff changeset
206 proc UpdateInputs*(engine: Engine): bool =
1139
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sam <sam@basx.dev>
parents: 1138
diff changeset
207 UpdateInputs(engine.window.PendingEvents())
1021
73b572f82a1f add: bases for a better input-system
sam <sam@basx.dev>
parents: 1009
diff changeset
208
1022
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sam <sam@basx.dev>
parents: 1021
diff changeset
209 proc ProcessEvents*(engine: Engine, panel: var Panel) =
1139
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sam <sam@basx.dev>
parents: 1138
diff changeset
210 let hasMouseNow = panel.Contains(MousePositionNormalized(engine.window.Size), engine.GetAspectRatio)
895
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Sam <sam@basx.dev>
parents: 894
diff changeset
211
10267da04fba add: input-processing for panels
Sam <sam@basx.dev>
parents: 894
diff changeset
212 # enter/leave events
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Sam <sam@basx.dev>
parents: 894
diff changeset
213 if hasMouseNow:
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Sam <sam@basx.dev>
parents: 894
diff changeset
214 if panel.hasMouse:
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Sam <sam@basx.dev>
parents: 894
diff changeset
215 if panel.onMouseMove != nil: panel.onMouseMove(panel)
10267da04fba add: input-processing for panels
Sam <sam@basx.dev>
parents: 894
diff changeset
216 else:
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Sam <sam@basx.dev>
parents: 894
diff changeset
217 if panel.onMouseEnter != nil: panel.onMouseEnter(panel)
10267da04fba add: input-processing for panels
Sam <sam@basx.dev>
parents: 894
diff changeset
218 else:
10267da04fba add: input-processing for panels
Sam <sam@basx.dev>
parents: 894
diff changeset
219 if panel.hasMouse:
10267da04fba add: input-processing for panels
Sam <sam@basx.dev>
parents: 894
diff changeset
220 if panel.onMouseLeave != nil: panel.onMouseLeave(panel)
10267da04fba add: input-processing for panels
Sam <sam@basx.dev>
parents: 894
diff changeset
221
10267da04fba add: input-processing for panels
Sam <sam@basx.dev>
parents: 894
diff changeset
222 # button events
10267da04fba add: input-processing for panels
Sam <sam@basx.dev>
parents: 894
diff changeset
223 if hasMouseNow:
1022
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sam <sam@basx.dev>
parents: 1021
diff changeset
224 if MouseWasPressed():
f888ac4825b8 did: refactor input system, did some renaming, add quering of keys in key-value-store
sam <sam@basx.dev>
parents: 1021
diff changeset
225 if panel.onMouseDown != nil: panel.onMouseDown(panel, MousePressedButtons())
f888ac4825b8 did: refactor input system, did some renaming, add quering of keys in key-value-store
sam <sam@basx.dev>
parents: 1021
diff changeset
226 if MouseWasReleased():
f888ac4825b8 did: refactor input system, did some renaming, add quering of keys in key-value-store
sam <sam@basx.dev>
parents: 1021
diff changeset
227 if panel.onMouseUp != nil: panel.onMouseUp(panel, MouseReleasedButtons())
895
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Sam <sam@basx.dev>
parents: 894
diff changeset
228
10267da04fba add: input-processing for panels
Sam <sam@basx.dev>
parents: 894
diff changeset
229 panel.hasMouse = hasMouseNow