annotate semicongine/vulkan/renderpass.nim @ 998:7e89c8fe57a8

did: add name for material types and fix shader-materialtype-compatability check
author sam <sam@basx.dev>
date Sat, 13 Apr 2024 11:09:02 +0700
parents b42511186858
children a4aa9f374d44
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1 import ../core
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2 import ../material
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3 import ./device
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4 import ./physicaldevice
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5 import ./pipeline
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6 import ./shader
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7 import ./framebuffer
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8
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9 type
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10 RenderPass* = object
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11 vk*: VkRenderPass
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12 device*: Device
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13 shaderPipelines*: seq[(MaterialType, ShaderPipeline)]
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14 clearColor*: Vec4f
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15
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16 proc createRenderPass*(
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17 device: Device,
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18 shaders: openArray[(MaterialType, ShaderConfiguration)],
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19 clearColor = Vec4f([0.8'f32, 0.8'f32, 0.8'f32, 1'f32]),
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20 backFaceCulling = true,
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21 inFlightFrames = 2,
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22 ): RenderPass =
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23 assert device.vk.valid
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24
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25 # some asserts
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26 for (materialtype, shaderconfig) in shaders:
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27 shaderconfig.assertCanRender(materialtype)
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28
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29 var
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30 attachments = @[VkAttachmentDescription(
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31 format: device.physicalDevice.getSurfaceFormats().filterSurfaceFormat().format,
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32 samples: VK_SAMPLE_COUNT_1_BIT,
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33 loadOp: VK_ATTACHMENT_LOAD_OP_CLEAR,
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34 storeOp: VK_ATTACHMENT_STORE_OP_STORE,
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35 stencilLoadOp: VK_ATTACHMENT_LOAD_OP_DONT_CARE,
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36 stencilStoreOp: VK_ATTACHMENT_STORE_OP_DONT_CARE,
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37 initialLayout: VK_IMAGE_LAYOUT_UNDEFINED,
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38 finalLayout: VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
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39 )]
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40 # dependencies seems to be optional, TODO: benchmark difference
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41 dependencies = @[VkSubpassDependency(
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42 srcSubpass: VK_SUBPASS_EXTERNAL,
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43 dstSubpass: 0,
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44 srcStageMask: toBits [VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT],
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45 srcAccessMask: VkAccessFlags(0),
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46 dstStageMask: toBits [VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT],
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47 dstAccessMask: toBits [VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT],
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48 )]
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49 outputs = @[
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50 VkAttachmentReference(
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51 attachment: 0,
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52 layout: VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
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53 )
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54 ]
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55
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56 var subpassesList = [
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57 VkSubpassDescription(
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58 flags: VkSubpassDescriptionFlags(0),
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59 pipelineBindPoint: VK_PIPELINE_BIND_POINT_GRAPHICS,
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60 inputAttachmentCount: 0,
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61 pInputAttachments: nil,
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62 colorAttachmentCount: uint32(outputs.len),
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63 pColorAttachments: outputs.toCPointer,
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64 pResolveAttachments: nil,
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65 pDepthStencilAttachment: nil,
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66 preserveAttachmentCount: 0,
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67 pPreserveAttachments: nil,
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68 )
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69 ]
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70
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71 var createInfo = VkRenderPassCreateInfo(
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72 sType: VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
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73 attachmentCount: uint32(attachments.len),
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74 pAttachments: attachments.toCPointer,
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75 subpassCount: uint32(subpassesList.len),
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76 pSubpasses: subpassesList.toCPointer,
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77 dependencyCount: uint32(dependencies.len),
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78 pDependencies: dependencies.toCPointer,
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79 )
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80 result.device = device
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81 result.clearColor = clearColor
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82 checkVkResult device.vk.vkCreateRenderPass(addr(createInfo), nil, addr(result.vk))
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83
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84 for (_, shaderconfig) in shaders:
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85 assert shaderconfig.outputs.len == 1
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86 for (materialtype, shaderconfig) in shaders:
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87 result.shaderPipelines.add (materialtype, device.createPipeline(result.vk, shaderconfig, inFlightFrames, 0, backFaceCulling = backFaceCulling))
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88
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89 proc beginRenderCommands*(commandBuffer: VkCommandBuffer, renderpass: RenderPass, framebuffer: Framebuffer, oneTimeSubmit: bool) =
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90 assert commandBuffer.valid
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91 assert renderpass.vk.valid
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92 assert framebuffer.vk.valid
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93 let
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94 w = framebuffer.dimension.x
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95 h = framebuffer.dimension.y
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96
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97 var clearColors = [VkClearValue(color: VkClearColorValue(float32: renderpass.clearColor))]
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98 var
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99 beginInfo = VkCommandBufferBeginInfo(
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100 sType: VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
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101 pInheritanceInfo: nil,
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102 flags: if oneTimeSubmit: VkCommandBufferUsageFlags(VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT) else: VkCommandBufferUsageFlags(0),
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103 )
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104 renderPassInfo = VkRenderPassBeginInfo(
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105 sType: VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
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106 renderPass: renderPass.vk,
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107 framebuffer: framebuffer.vk,
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108 renderArea: VkRect2D(
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109 offset: VkOffset2D(x: 0, y: 0),
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110 extent: VkExtent2D(width: w, height: h),
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111 ),
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112 clearValueCount: uint32(clearColors.len),
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113 pClearValues: clearColors.toCPointer(),
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114 )
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115 viewport = VkViewport(
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116 x: 0.0,
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117 y: 0.0,
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118 width: (float)w,
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119 height: (float)h,
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120 minDepth: 0.0,
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121 maxDepth: 1.0,
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122 )
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123 scissor = VkRect2D(
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124 offset: VkOffset2D(x: 0, y: 0),
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125 extent: VkExtent2D(width: w, height: h)
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126 )
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127 checkVkResult commandBuffer.vkResetCommandBuffer(VkCommandBufferResetFlags(0))
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128 checkVkResult commandBuffer.vkBeginCommandBuffer(addr(beginInfo))
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129 commandBuffer.vkCmdBeginRenderPass(addr(renderPassInfo), VK_SUBPASS_CONTENTS_INLINE)
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130 commandBuffer.vkCmdSetViewport(firstViewport = 0, viewportCount = 1, addr(viewport))
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131 commandBuffer.vkCmdSetScissor(firstScissor = 0, scissorCount = 1, addr(scissor))
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132
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133 proc endRenderCommands*(commandBuffer: VkCommandBuffer) =
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134 commandBuffer.vkCmdEndRenderPass()
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135 checkVkResult commandBuffer.vkEndCommandBuffer()
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136
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137
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138 proc destroy*(renderPass: var RenderPass) =
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139 assert renderPass.device.vk.valid
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140 assert renderPass.vk.valid
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141 renderPass.device.vk.vkDestroyRenderPass(renderPass.vk, nil)
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142 renderPass.vk.reset
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143 for _, pipeline in renderPass.shaderPipelines.mitems:
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144 pipeline.destroy()