Mercurial > games > semicongine

annotate semiconginev2/old/vulkan/drawable.nim @ 1218:56781cc0fc7c compiletime-tests

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did: renamge main package
author sam <sam@basx.dev>
date Wed, 17 Jul 2024 21:01:37 +0700
parents semicongine/old/vulkan/drawable.nim@a3eb305bcac2
children
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1 import std/tables
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2 import std/strformat
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3 import std/logging
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4
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5 import ../core
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6 import ./buffer
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7
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8 type
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9 Drawable* = object
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10 name*: string
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11 elementCount*: int # number of vertices or indices
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12 bufferOffsets*: Table[VkPipeline, seq[(string, MemoryPerformanceHint, uint64)]] # list of buffers and list of offset for each attribute in that buffer
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13 instanceCount*: int # number of instance
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14 case indexed*: bool
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15 of true:
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16 indexType*: VkIndexType
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17 indexBufferOffset*: uint64
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18 of false:
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19 discard
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20
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21 func `$`*(drawable: Drawable): string =
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22 if drawable.indexed:
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23 &"Drawable({drawable.name}, elementCount: {drawable.elementCount}, instanceCount: {drawable.instanceCount}, bufferOffsets: {drawable.bufferOffsets}, indexType: {drawable.indexType}, indexBufferOffset: {drawable.indexBufferOffset})"
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24 else:
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25 &"Drawable({drawable.name}, elementCount: {drawable.elementCount}, instanceCount: {drawable.instanceCount}, bufferOffsets: {drawable.bufferOffsets})"
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26
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27 proc Draw*(drawable: Drawable, commandBuffer: VkCommandBuffer, vertexBuffers: Table[MemoryPerformanceHint, Buffer], indexBuffer: Buffer, pipeline: VkPipeline) =
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28 debug &"Draw {drawable} with pipeline {pipeline}"
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30 var buffers: seq[VkBuffer]
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31 var offsets: seq[VkDeviceSize]
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33 for (name, performanceHint, offset) in drawable.bufferOffsets[pipeline]:
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34 assert vertexBuffers[performanceHint].vk.Valid
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35 buffers.add vertexBuffers[performanceHint].vk
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36 offsets.add VkDeviceSize(offset)
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37
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38 debug "Binding buffers: ", buffers
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39 debug "with offsets ", offsets
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40 commandBuffer.vkCmdBindVertexBuffers(
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41 firstBinding = 0'u32,
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42 bindingCount = uint32(buffers.len),
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43 pBuffers = buffers.ToCPointer(),
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44 pOffsets = offsets.ToCPointer()
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45 )
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46 if drawable.indexed:
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47 assert indexBuffer.vk.Valid
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48 commandBuffer.vkCmdBindIndexBuffer(indexBuffer.vk, VkDeviceSize(drawable.indexBufferOffset), drawable.indexType)
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49 commandBuffer.vkCmdDrawIndexed(
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50 indexCount = uint32(drawable.elementCount),
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51 instanceCount = uint32(drawable.instanceCount),
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52 firstIndex = 0,
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53 vertexOffset = 0,
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54 firstInstance = 0
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55 )
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56 else:
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57 commandBuffer.vkCmdDraw(
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58 vertexCount = uint32(drawable.elementCount),
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59 instanceCount = uint32(drawable.instanceCount),
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60 firstVertex = 0,
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61 firstInstance = 0
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62 )