Mercurial > games > semicongine
annotate tests/test_vulkan_wrapper.nim @ 106:9c3e3dcb0328
add: render main loop structure
| author | Sam <sam@basx.dev> |
|---|---|
| date | Sun, 26 Mar 2023 01:56:19 +0700 |
| parents | 4059aa0d689b |
| children | 2d0351a68a4e |
| rev | line source |
|---|---|
| 96 | 1 import std/options |
| 2 | |
| 93 | 3 import semicongine/vulkan |
| 94 | 4 import semicongine/platform/window |
| 98 | 5 import semicongine/math |
| 93 | 6 |
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7 type |
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8 Vertex = object |
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9 pos: Vec3 |
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10 FragmentInput = object |
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11 fragpos: Vec3 |
| 102 | 12 Uniforms = object |
| 13 time: float32 | |
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14 Pixel = object |
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15 color: Vec4 |
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16 |
| 104 | 17 proc diagnostics(instance: Instance) = |
| 94 | 18 # diagnostic output |
| 93 | 19 echo "Devices" |
| 20 for device in instance.getPhysicalDevices(): | |
| 21 echo " " & $device | |
| 96 | 22 echo " Rating: " & $device.rateGraphics() |
| 93 | 23 echo " Extensions" |
| 24 for extension in device.getExtensions(): | |
| 25 echo " " & $extension | |
| 96 | 26 echo " Properties" |
| 27 echo " " & $device.getProperties() | |
| 28 echo " Features" | |
| 29 echo " " & $device.getFeatures() | |
| 93 | 30 echo " Queue families" |
| 31 for queueFamily in device.getQueueFamilies(): | |
| 32 echo " " & $queueFamily | |
| 94 | 33 echo " Surface present modes" |
| 96 | 34 for mode in device.getSurfacePresentModes(): |
| 94 | 35 echo " " & $mode |
| 36 echo " Surface formats" | |
| 96 | 37 for format in device.getSurfaceFormats(): |
| 94 | 38 echo " " & $format |
| 93 | 39 |
| 104 | 40 when isMainModule: |
| 41 # print basic driver infos | |
| 42 echo "Layers" | |
| 43 for layer in getLayers(): | |
| 44 echo " " & layer | |
| 45 echo "Instance extensions" | |
| 46 for extension in getInstanceExtensions(): | |
| 47 echo " " & extension | |
| 48 | |
| 49 # create instance | |
| 50 var thewindow = createWindow("Test") | |
| 51 var instance = thewindow.createInstance( | |
| 52 vulkanVersion=VK_MAKE_API_VERSION(0, 1, 3, 0), | |
| 53 instanceExtensions= @["VK_EXT_debug_utils"], | |
| 54 layers= @["VK_LAYER_KHRONOS_validation"] | |
| 55 ) | |
| 56 var debugger = instance.createDebugMessenger() | |
| 57 | |
| 93 | 58 # create devices |
| 96 | 59 let selectedPhysicalDevice = instance.getPhysicalDevices().filterBestGraphics() |
| 60 var device = instance.createDevice( | |
| 61 selectedPhysicalDevice, | |
| 62 @[], | |
| 63 @[], | |
| 64 selectedPhysicalDevice.filterForGraphicsPresentationQueues() | |
| 65 ) | |
| 66 | |
| 98 | 67 # setup render pipeline |
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68 var surfaceFormat = device.physicalDevice.getSurfaceFormats().filterSurfaceFormat() |
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69 var renderpass = device.simpleForwardRenderPass(surfaceFormat.format) |
| 106 | 70 var (swapchain, res) = device.createSwapchain(renderpass, surfaceFormat, device.firstGraphicsQueue().get().family) |
| 96 | 71 if res != VK_SUCCESS: |
| 72 raise newException(Exception, "Unable to create swapchain") | |
| 98 | 73 |
| 74 # todo: could be create inside "device", but it would be nice to have nim v2 with support for circular dependencies first | |
| 104 | 75 const vertexBinary = shaderCode[Vertex, Uniforms, FragmentInput](stage=VK_SHADER_STAGE_VERTEX_BIT, version=450, entrypoint="main", "fragpos = pos;") |
| 76 const fragmentBinary = shaderCode[FragmentInput, void, Pixel](stage=VK_SHADER_STAGE_FRAGMENT_BIT, version=450, entrypoint="main", "color = vec4(1, 1, 1, 0);") | |
| 106 | 77 var |
| 78 vertexshader = createShader[Vertex, Uniforms, FragmentInput](device, VK_SHADER_STAGE_VERTEX_BIT, "main", vertexBinary) | |
| 79 fragmentshader = createShader[FragmentInput, void, Pixel](device, VK_SHADER_STAGE_FRAGMENT_BIT, "main", fragmentBinary) | |
| 80 pipeline = renderpass.createPipeline(vertexshader, fragmentshader) | |
| 81 descriptorPool = device.createDescriptorSetPool(@[(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1'u32)]) | |
| 82 descriptorSet = descriptorPool.allocateDescriptorSet(pipeline.descriptorSetLayout, 1) | |
| 96 | 83 |
| 84 echo "All successfull" | |
| 106 | 85 echo swapchain.drawNextFrame(pipeline) |
| 96 | 86 echo "Start cleanup" |
| 93 | 87 |
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88 # cleanup |
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89 checkVkResult device.vk.vkDeviceWaitIdle() |
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90 descriptorPool.destroy() |
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91 vertexshader.destroy() |
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92 fragmentshader.destroy() |
| 104 | 93 pipeline.destroy() |
| 98 | 94 renderpass.destroy() |
| 96 | 95 swapchain.destroy() |
| 96 device.destroy() | |
| 93 | 97 |
| 98 debugger.destroy() | |
| 99 instance.destroy() |