pixi.js/lib/scene/graphics/shared/utils/buildContextBatches.mjs.map

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{"version":3,"file":"buildContextBatches.mjs","sources":["../../../../../src/scene/graphics/shared/utils/buildContextBatches.ts"],"sourcesContent":["import { extensions, ExtensionType } from '../../../../extensions/Extensions';\nimport { Matrix } from '../../../../maths/matrix/Matrix';\nimport { Rectangle } from '../../../../maths/shapes/Rectangle';\nimport { buildSimpleUvs, buildUvs } from '../../../../rendering/renderers/shared/geometry/utils/buildUvs';\nimport { transformVertices } from '../../../../rendering/renderers/shared/geometry/utils/transformVertices';\nimport { Texture } from '../../../../rendering/renderers/shared/texture/Texture';\nimport { BigPool } from '../../../../utils/pool/PoolGroup';\nimport { BatchableGraphics } from '../BatchableGraphics';\nimport { buildCircle, buildEllipse, buildRoundedRectangle } from '../buildCommands/buildCircle';\nimport { buildLine } from '../buildCommands/buildLine';\nimport { buildPixelLine } from '../buildCommands/buildPixelLine';\nimport { buildPolygon } from '../buildCommands/buildPolygon';\nimport { buildRectangle } from '../buildCommands/buildRectangle';\nimport { buildTriangle } from '../buildCommands/buildTriangle';\nimport { generateTextureMatrix as generateTextureFillMatrix } from './generateTextureFillMatrix';\nimport { triangulateWithHoles } from './triangulateWithHoles';\n\nimport type { Polygon } from '../../../../maths/shapes/Polygon';\nimport type { Topology } from '../../../../rendering/renderers/shared/geometry/const';\nimport type { ShapeBuildCommand } from '../buildCommands/ShapeBuildCommand';\nimport type { ConvertedFillStyle, ConvertedStrokeStyle } from '../FillTypes';\nimport type { GraphicsContext, TextureInstruction } from '../GraphicsContext';\nimport type { GpuGraphicsContext } from '../GraphicsContextSystem';\nimport type { ShapePath, ShapePrimitiveWithHoles } from '../path/ShapePath';\n\n/**\n * A record of shape builders, keyed by shape type.\n * @category scene\n * @advanced\n */\nexport const shapeBuilders: Record<string, ShapeBuildCommand> = {};\n\nextensions.handleByMap(ExtensionType.ShapeBuilder, shapeBuilders);\nextensions.add(buildRectangle, buildPolygon, buildTriangle, buildCircle, buildEllipse, buildRoundedRectangle);\n\nconst tempRect = new Rectangle();\nconst tempTextureMatrix = new Matrix();\n\n/**\n * @param context\n * @param gpuContext\n * @internal\n */\nexport function buildContextBatches(context: GraphicsContext, gpuContext: GpuGraphicsContext)\n{\n    const { geometryData, batches } = gpuContext;\n\n    // reset them..\n    batches.length = 0;\n    geometryData.indices.length = 0;\n    geometryData.vertices.length = 0;\n    geometryData.uvs.length = 0;\n\n    for (let i = 0; i < context.instructions.length; i++)\n    {\n        const instruction = context.instructions[i];\n\n        if (instruction.action === 'texture')\n        {\n            // add a quad!\n            addTextureToGeometryData(instruction.data, batches, geometryData);\n        }\n        else if (instruction.action === 'fill' || instruction.action === 'stroke')\n        {\n            const isStroke = instruction.action === 'stroke';\n\n            // build path collection of polys and shapes points..\n            const shapePath = instruction.data.path.shapePath;\n\n            const style = instruction.data.style;\n\n            const hole = instruction.data.hole;\n\n            if (isStroke && hole)\n            {\n                addShapePathToGeometryData(hole.shapePath, style, true, batches, geometryData);\n            }\n\n            if (hole)\n            {\n                // add the holes to the last shape primitive\n                shapePath.shapePrimitives[shapePath.shapePrimitives.length - 1].holes = hole.shapePath.shapePrimitives;\n            }\n\n            addShapePathToGeometryData(shapePath, style, isStroke, batches, geometryData);\n        }\n    }\n}\n\nfunction addTextureToGeometryData(\n    data: TextureInstruction['data'],\n    batches: BatchableGraphics[],\n    geometryData: {\n        vertices: number[];\n        uvs: number[];\n        indices: number[];\n    }\n)\n{\n    const points: number[] = [];\n\n    const build = shapeBuilders.rectangle;\n\n    const rect = tempRect;\n\n    rect.x = data.dx;\n    rect.y = data.dy;\n    rect.width = data.dw;\n    rect.height = data.dh;\n\n    const matrix = data.transform;\n\n    // TODO - this can be cached...\n    if (!build.build(rect, points))\n    {\n        return;\n    }\n\n    const { vertices, uvs, indices } = geometryData;\n\n    const indexOffset = indices.length;\n    const vertOffset = vertices.length / 2;\n\n    if (matrix)\n    {\n        transformVertices(points, matrix);\n    }\n\n    build.triangulate(points, vertices, 2, vertOffset, indices, indexOffset);\n\n    const texture = data.image;\n    const textureUvs = texture.uvs;\n\n    uvs.push(\n        textureUvs.x0, textureUvs.y0,\n        textureUvs.x1, textureUvs.y1,\n        textureUvs.x3, textureUvs.y3,\n        textureUvs.x2, textureUvs.y2,\n    );\n\n    const graphicsBatch = BigPool.get(BatchableGraphics);\n\n    graphicsBatch.indexOffset = indexOffset;\n    graphicsBatch.indexSize = indices.length - indexOffset;\n\n    graphicsBatch.attributeOffset = vertOffset;\n    graphicsBatch.attributeSize = (vertices.length / 2) - vertOffset;\n\n    graphicsBatch.baseColor = data.style;\n    graphicsBatch.alpha = data.alpha;\n\n    graphicsBatch.texture = texture;\n    graphicsBatch.geometryData = geometryData;\n\n    batches.push(graphicsBatch);\n}\n\nfunction addShapePathToGeometryData(\n    shapePath: ShapePath,\n    style: ConvertedFillStyle | ConvertedStrokeStyle,\n    isStroke: boolean,\n    batches: BatchableGraphics[],\n    geometryData: {\n        vertices: number[];\n        uvs: number[];\n        indices: number[];\n    }\n)\n{\n    const { vertices, uvs, indices } = geometryData;\n\n    shapePath.shapePrimitives.forEach(({ shape, transform: matrix, holes }) =>\n    {\n        const points: number[] = [];\n        const build = shapeBuilders[shape.type];\n        // TODO - this can be cached...\n        // TODO - THIS IS DONE TWICE!!!!!!\n        // ONCE FOR STROKE AND ONCE FOR FILL\n        // move to the ShapePath2D class itself?\n\n        if (!build.build(shape, points))\n        {\n            return;\n        }\n\n        const indexOffset = indices.length;\n        const vertOffset = vertices.length / 2;\n        let topology: Topology = 'triangle-list';\n\n        if (matrix)\n        {\n            transformVertices(points, matrix);\n        }\n\n        if (!isStroke)\n        {\n            if (holes)\n            {\n                const holeIndices: number[] = [];\n\n                const otherPoints = points.slice();\n\n                const holeArrays = getHoleArrays(holes);\n\n                holeArrays.forEach((holePoints) =>\n                {\n                    holeIndices.push(otherPoints.length / 2);\n                    otherPoints.push(...holePoints);\n                });\n\n                triangulateWithHoles(otherPoints, holeIndices, vertices, 2, vertOffset, indices, indexOffset);\n            }\n            else\n            {\n                build.triangulate(points, vertices, 2, vertOffset, indices, indexOffset);\n            }\n        }\n        else\n        {\n            const close = (shape as Polygon).closePath ?? true;\n            const lineStyle = style as ConvertedStrokeStyle;\n\n            if (!lineStyle.pixelLine)\n            {\n                buildLine(points, lineStyle, false, close, vertices, indices);\n            }\n            else\n            {\n                buildPixelLine(points, close, vertices, indices);\n                topology = 'line-list';\n            }\n        }\n\n        const uvsOffset = uvs.length / 2;\n\n        const texture = style.texture;\n\n        if (texture !== Texture.WHITE)\n        {\n            const textureMatrix = generateTextureFillMatrix(tempTextureMatrix, style, shape, matrix);\n\n            buildUvs(vertices, 2, vertOffset, uvs, uvsOffset, 2, (vertices.length / 2) - vertOffset, textureMatrix);\n        }\n        else\n        {\n            buildSimpleUvs(uvs, uvsOffset, 2, (vertices.length / 2) - vertOffset);\n        }\n\n        const graphicsBatch = BigPool.get(BatchableGraphics);\n\n        graphicsBatch.indexOffset = indexOffset;\n        graphicsBatch.indexSize = indices.length - indexOffset;\n\n        graphicsBatch.attributeOffset = vertOffset;\n        graphicsBatch.attributeSize = (vertices.length / 2) - vertOffset;\n\n        graphicsBatch.baseColor = style.color;\n        graphicsBatch.alpha = style.alpha;\n\n        graphicsBatch.texture = texture;\n        graphicsBatch.geometryData = geometryData;\n        graphicsBatch.topology = topology;\n\n        batches.push(graphicsBatch);\n    });\n}\n\nfunction getHoleArrays(holePrimitives: ShapePrimitiveWithHoles[])\n{\n    const holeArrays = [];\n\n    for (let k = 0; k < holePrimitives.length; k++)\n    {\n        const holePrimitive = holePrimitives[k].shape;\n\n        // TODO - need to transform the points via there transform here..\n        const holePoints: number[] = [];\n\n        const holeBuilder = shapeBuilders[holePrimitive.type] as ShapeBuildCommand;\n\n        if (holeBuilder.build(holePrimitive, holePoints))\n        {\n            holeArrays.push(holePoints);\n        }\n    }\n\n    return 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