Mercurial > games > semicongine
annotate semiconginev2/text/textbox.nim @ 1242:e8b3dc80e48e
add: PNG loading and tests for it
| author | sam <sam@basx.dev> |
|---|---|
| date | Mon, 22 Jul 2024 15:53:32 +0700 |
| parents | 42eeb59f3a43 |
| children |
| rev | line source |
|---|---|
| 1234 | 1 type |
| 2 Textbox* = object | |
| 3 font*: Font | |
| 4 maxLen*: int # maximum amount of characters that will be rendered | |
| 5 maxWidth: float32 = 0 # if set, will cause automatic word breaks at maxWidth | |
| 6 # properties: | |
| 7 text: seq[Rune] | |
| 8 horizontalAlignment: HorizontalAlignment = Center | |
| 9 verticalAlignment: VerticalAlignment = Center | |
| 10 # management/internal: | |
| 11 dirtyGeometry: bool # is true if any of the attributes changed | |
| 12 dirtyShaderdata: bool # is true if any of the attributes changed | |
| 13 processedText: seq[Rune] # used to store processed (word-wrapper) text to preserve original | |
| 14 lastRenderedText: seq[Rune] # stores the last rendered text, to prevent unnecessary updates | |
| 15 | |
| 16 # rendering data | |
| 1236 | 17 position*: GPUArray[Vec3f, VertexBuffer] |
| 18 uv*: GPUArray[Vec2f, VertexBuffer] | |
| 19 indices*: GPUArray[uint16, IndexBuffer] | |
| 20 shaderdata*: DescriptorSet[TextboxDescriptorSet] | |
| 1234 | 21 |
| 1236 | 22 func `$`*(textbox: Textbox): string = |
| 23 "\"" & $textbox.text[0 ..< min(textbox.text.len, 16)] & "\"" | |
| 1234 | 24 |
| 1236 | 25 proc RefreshShaderdata(textbox: Textbox) = |
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add: better syncing, better swapchain access, correct font offset, two font-rendering tests
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parents:
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diff
changeset
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26 textbox.shaderdata.data.textbox.UpdateGPUBuffer(flush = true) |
| 1234 | 27 |
| 1236 | 28 proc RefreshGeometry(textbox: var Textbox) = |
| 1234 | 29 # pre-calculate text-width |
| 30 var width = 0'f32 | |
| 31 var lineWidths: seq[float32] | |
| 1236 | 32 for i in 0 ..< textbox.processedText.len: |
| 33 if textbox.processedText[i] == NEWLINE: | |
| 1234 | 34 lineWidths.add width |
| 35 width = 0'f32 | |
| 36 else: | |
| 1236 | 37 if not (i == textbox.processedText.len - 1 and textbox.processedText[i].isWhiteSpace): |
| 38 width += textbox.font.glyphs[textbox.processedText[i]].advance | |
| 39 if i < textbox.processedText.len - 1: | |
| 40 width += textbox.font.kerning[(textbox.processedText[i], textbox.processedText[i + 1])] | |
| 1234 | 41 lineWidths.add width |
| 1236 | 42 var height = float32(lineWidths.len - 1) * textbox.font.lineAdvance + textbox.font.capHeight |
| 1234 | 43 if lineWidths[^1] == 0 and lineWidths.len > 1: |
| 44 height -= 1 | |
| 45 | |
| 1236 | 46 let anchorY = (case textbox.verticalAlignment |
| 1234 | 47 of Top: 0'f32 |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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48 of Center: -height / 2 |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
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diff
changeset
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49 of Bottom: -height |
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50 ) + textbox.font.capHeight |
| 1234 | 51 |
| 52 var | |
| 53 offsetX = 0'f32 | |
| 54 offsetY = 0'f32 | |
| 55 lineIndex = 0 | |
| 1236 | 56 anchorX = case textbox.horizontalAlignment |
| 1234 | 57 of Left: 0'f32 |
| 58 of Center: lineWidths[lineIndex] / 2 | |
| 59 of Right: lineWidths[lineIndex] | |
| 1236 | 60 for i in 0 ..< textbox.maxLen: |
| 1234 | 61 let vertexOffset = i * 4 |
| 1236 | 62 if i < textbox.processedText.len: |
| 63 if textbox.processedText[i] == Rune('\n'): | |
| 1234 | 64 offsetX = 0 |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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65 offsetY -= textbox.font.lineAdvance |
| 1236 | 66 textbox.position.data[vertexOffset + 0] = NewVec3f() |
| 67 textbox.position.data[vertexOffset + 1] = NewVec3f() | |
| 68 textbox.position.data[vertexOffset + 2] = NewVec3f() | |
| 69 textbox.position.data[vertexOffset + 3] = NewVec3f() | |
| 1234 | 70 inc lineIndex |
| 1236 | 71 anchorX = case textbox.horizontalAlignment |
| 1234 | 72 of Left: 0'f32 |
| 73 of Center: lineWidths[lineIndex] / 2 | |
| 74 of Right: lineWidths[lineIndex] | |
| 75 else: | |
| 76 let | |
| 1236 | 77 glyph = textbox.font.glyphs[textbox.processedText[i]] |
| 1234 | 78 left = offsetX + glyph.leftOffset |
| 79 right = offsetX + glyph.leftOffset + glyph.dimension.x | |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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80 top = offsetY - glyph.topOffset |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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81 bottom = offsetY - glyph.topOffset - glyph.dimension.y |
| 1234 | 82 |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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83 textbox.position.data[vertexOffset + 0] = NewVec3f(left - anchorX, bottom - anchorY) |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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84 textbox.position.data[vertexOffset + 1] = NewVec3f(left - anchorX, top - anchorY) |
|
69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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85 textbox.position.data[vertexOffset + 2] = NewVec3f(right - anchorX, top - anchorY) |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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86 textbox.position.data[vertexOffset + 3] = NewVec3f(right - anchorX, bottom - anchorY) |
| 1234 | 87 |
| 1236 | 88 textbox.uv.data[vertexOffset + 0] = glyph.uvs[0] |
| 89 textbox.uv.data[vertexOffset + 1] = glyph.uvs[1] | |
| 90 textbox.uv.data[vertexOffset + 2] = glyph.uvs[2] | |
| 91 textbox.uv.data[vertexOffset + 3] = glyph.uvs[3] | |
| 1234 | 92 |
| 93 offsetX += glyph.advance | |
| 1236 | 94 if i < textbox.processedText.len - 1: |
| 95 offsetX += textbox.font.kerning[(textbox.processedText[i], textbox.processedText[i + 1])] | |
| 1234 | 96 else: |
| 1236 | 97 textbox.position.data[vertexOffset + 0] = NewVec3f() |
| 98 textbox.position.data[vertexOffset + 1] = NewVec3f() | |
| 99 textbox.position.data[vertexOffset + 2] = NewVec3f() | |
| 100 textbox.position.data[vertexOffset + 3] = NewVec3f() | |
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1239
69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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101 UpdateGPUBuffer(textbox.position) |
|
69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
|
102 UpdateGPUBuffer(textbox.uv) |
| 1236 | 103 textbox.lastRenderedText = textbox.processedText |
| 104 | |
| 105 func text*(textbox: Textbox): seq[Rune] = | |
| 106 textbox.text | |
| 1234 | 107 |
| 1236 | 108 proc `text=`*(textbox: var Textbox, newText: seq[Rune]) = |
| 109 if newText[0 ..< min(newText.len, textbox.maxLen)] == textbox.text: | |
| 110 return | |
| 1234 | 111 |
| 1236 | 112 textbox.text = newText[0 ..< min(newText.len, textbox.maxLen)] |
| 1234 | 113 |
| 1236 | 114 textbox.processedText = textbox.text |
| 115 if textbox.maxWidth > 0: | |
| 116 textbox.processedText = WordWrapped( | |
| 117 textbox.processedText, | |
| 118 textbox.font[], | |
| 119 textbox.maxWidth / textbox.shaderdata.data.textbox.data.scale, | |
| 1234 | 120 ) |
| 121 | |
| 1236 | 122 proc `text=`*(textbox: var Textbox, newText: string) = |
| 123 `text=`(textbox, newText.toRunes) | |
| 124 | |
| 125 proc Color*(textbox: Textbox): Vec4f = | |
| 126 textbox.shaderdata.data.textbox.data.color | |
| 1234 | 127 |
| 1236 | 128 proc `Color=`*(textbox: var Textbox, value: Vec4f) = |
| 129 if textbox.shaderdata.data.textbox.data.color != value: | |
| 130 textbox.dirtyShaderdata = true | |
| 131 textbox.shaderdata.data.textbox.data.color = value | |
| 1234 | 132 |
| 1236 | 133 proc Scale*(textbox: Textbox): float32 = |
| 134 textbox.shaderdata.data.textbox.data.scale | |
| 1234 | 135 |
| 1236 | 136 proc `Scale=`*(textbox: var Textbox, value: float32) = |
| 137 if textbox.shaderdata.data.textbox.data.scale != value: | |
| 138 textbox.dirtyShaderdata = true | |
| 139 textbox.shaderdata.data.textbox.data.scale = value | |
| 140 | |
| 141 proc Position*(textbox: Textbox): Vec3f = | |
| 142 textbox.shaderdata.data.textbox.data.position | |
| 1234 | 143 |
| 1236 | 144 proc `Position=`*(textbox: var Textbox, value: Vec3f) = |
| 145 if textbox.shaderdata.data.textbox.data.position != value: | |
| 146 textbox.dirtyShaderdata = true | |
| 147 textbox.shaderdata.data.textbox.data.position = value | |
| 1234 | 148 |
| 1236 | 149 proc horizontalAlignment*(textbox: Textbox): HorizontalAlignment = |
| 150 textbox.horizontalAlignment | |
| 151 proc `horizontalAlignment=`*(textbox: var Textbox, value: HorizontalAlignment) = | |
| 152 if value != textbox.horizontalAlignment: | |
| 153 textbox.horizontalAlignment = value | |
| 154 textbox.dirtyGeometry = true | |
| 1234 | 155 |
| 1236 | 156 proc verticalAlignment*(textbox: Textbox): VerticalAlignment = |
| 157 textbox.verticalAlignment | |
| 158 proc `verticalAlignment=`*(textbox: var Textbox, value: VerticalAlignment) = | |
| 159 if value != textbox.verticalAlignment: | |
| 160 textbox.verticalAlignment = value | |
| 161 textbox.dirtyGeometry = true | |
| 162 | |
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1239
69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
|
163 proc Refresh*(textbox: var Textbox) = |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
|
164 if textbox.shaderdata.data.textbox.data.aspectratio != GetAspectRatio(): |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
|
165 textbox.dirtyShaderdata = true |
|
69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
|
166 textbox.shaderdata.data.textbox.data.aspectratio = GetAspectRatio() |
| 1234 | 167 |
| 1236 | 168 if textbox.dirtyShaderdata: |
| 169 textbox.RefreshShaderdata() | |
| 170 textbox.dirtyShaderdata = false | |
| 171 | |
| 172 if textbox.dirtyGeometry or textbox.processedText != textbox.lastRenderedText: | |
| 173 textbox.RefreshGeometry() | |
| 174 textbox.dirtyGeometry = false | |
| 175 | |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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176 proc Render*(textbox: Textbox, commandbuffer: VkCommandBuffer, pipeline: Pipeline) = |
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69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
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177 WithBind(commandbuffer, (textbox.shaderdata, ), pipeline): |
| 1236 | 178 Render(commandbuffer = commandbuffer, pipeline = pipeline, mesh = textbox) |
| 1234 | 179 |
| 1236 | 180 proc InitTextbox*[T: string | seq[Rune]]( |
| 1234 | 181 renderdata: var RenderData, |
| 182 descriptorSetLayout: VkDescriptorSetLayout, | |
| 183 font: Font, | |
| 1236 | 184 text: T = default(T), |
| 1234 | 185 scale: float32 = 1, |
| 186 position: Vec3f = NewVec3f(), | |
| 187 color: Vec4f = NewVec4f(0, 0, 0, 1), | |
| 188 maxLen: int = text.len, | |
| 189 verticalAlignment: VerticalAlignment = Center, | |
| 190 horizontalAlignment: HorizontalAlignment = Center, | |
| 191 maxWidth = 0'f32 | |
| 192 ): Textbox = | |
| 193 | |
| 194 result = Textbox( | |
| 195 maxLen: maxLen, | |
| 196 font: font, | |
| 197 dirtyGeometry: true, | |
| 1236 | 198 dirtyShaderdata: true, |
| 1234 | 199 horizontalAlignment: horizontalAlignment, |
| 200 verticalAlignment: verticalAlignment, | |
| 201 maxWidth: maxWidth, | |
| 202 position: asGPUArray(newSeq[Vec3f](int(maxLen * 4)), VertexBuffer), | |
| 203 uv: asGPUArray(newSeq[Vec2f](int(maxLen * 4)), VertexBuffer), | |
| 204 indices: asGPUArray(newSeq[uint16](int(maxLen * 6)), IndexBuffer), | |
| 205 shaderdata: asDescriptorSet( | |
| 206 TextboxDescriptorSet( | |
| 207 textbox: asGPUValue(TextboxData( | |
| 208 scale: scale, | |
| 209 position: position, | |
| 210 color: color, | |
| 1236 | 211 aspectratio: 1, |
| 1234 | 212 ), UniformBufferMapped), |
| 213 fontAtlas: font.fontAtlas | |
| 214 ) | |
| 215 ) | |
| 216 ) | |
| 217 | |
| 218 for i in 0 ..< maxLen: | |
| 219 let vertexIndex = i.uint16 * 4'u16 | |
| 220 result.indices.data[i * 6 + 0] = vertexIndex + 0 | |
| 221 result.indices.data[i * 6 + 1] = vertexIndex + 1 | |
| 222 result.indices.data[i * 6 + 2] = vertexIndex + 2 | |
| 223 result.indices.data[i * 6 + 3] = vertexIndex + 2 | |
| 224 result.indices.data[i * 6 + 4] = vertexIndex + 3 | |
| 225 result.indices.data[i * 6 + 5] = vertexIndex + 0 | |
| 226 | |
| 1236 | 227 when T is string: |
| 228 `text=`(result, text.toRunes()) | |
| 229 else: | |
| 230 `text=`(result, text) | |
| 1234 | 231 |
| 1236 | 232 AssignBuffers(renderdata, result, uploadData = false) |
| 1234 | 233 UploadImages(renderdata, result.shaderdata) |
| 234 InitDescriptorSet(renderdata, descriptorSetLayout, result.shaderdata) | |
| 235 | |
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1239
69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
|
236 result.Refresh() |
|
69489a678141
add: better syncing, better swapchain access, correct font offset, two font-rendering tests
sam <sam@basx.dev>
parents:
1238
diff
changeset
|
237 UpdateAllGPUBuffers(result, flush = true, allFrames = true) |
| 1236 | 238 UpdateAllGPUBuffers(result.shaderdata.data, flush = true) |