nothoughts/node_modules/pixi.js/lib/rendering/renderers/gpu/BindGroupSystem.mjs.map

{"version":3,"file":"BindGroupSystem.mjs","sources":["../../../../src/rendering/renderers/gpu/BindGroupSystem.ts"],"sourcesContent":["import { ExtensionType } from '../../../extensions/Extensions';\n\nimport type { Buffer } from '../shared/buffer/Buffer';\nimport type { BufferResource } from '../shared/buffer/BufferResource';\nimport type { UniformGroup } from '../shared/shader/UniformGroup';\nimport type { System } from '../shared/system/System';\nimport type { TextureSource } from '../shared/texture/sources/TextureSource';\nimport type { TextureStyle } from '../shared/texture/TextureStyle';\nimport type { GPU } from './GpuDeviceSystem';\nimport type { BindGroup } from './shader/BindGroup';\nimport type { BindResource } from './shader/BindResource';\nimport type { GpuProgram } from './shader/GpuProgram';\nimport type { WebGPURenderer } from './WebGPURenderer';\n\n/**\n * This manages the WebGPU bind groups. this is how data is bound to a shader when rendering\n * @memberof rendering\n */\nexport class BindGroupSystem implements System\n{\n    /** @ignore */\n    public static extension = {\n        type: [\n            ExtensionType.WebGPUSystem,\n        ],\n        name: 'bindGroup',\n    } as const;\n\n    private readonly _renderer: WebGPURenderer;\n\n    private _hash: Record<string, GPUBindGroup> = Object.create(null);\n    private _gpu: GPU;\n\n    constructor(renderer: WebGPURenderer)\n    {\n        this._renderer = renderer;\n    }\n\n    protected contextChange(gpu: GPU): void\n    {\n        this._gpu = gpu;\n    }\n\n    public getBindGroup(bindGroup: BindGroup, program: GpuProgram, groupIndex: number): GPUBindGroup\n    {\n        bindGroup._updateKey();\n\n        const gpuBindGroup = this._hash[bindGroup._key] || this._createBindGroup(bindGroup, program, groupIndex);\n\n        return gpuBindGroup;\n    }\n\n    private _createBindGroup(group: BindGroup, program: GpuProgram, groupIndex: number): GPUBindGroup\n    {\n        const device = this._gpu.device;\n        const groupLayout = program.layout[groupIndex];\n        const entries: GPUBindGroupEntry[] = [];\n        const renderer = this._renderer;\n\n        for (const j in groupLayout)\n        {\n            const resource: BindResource = group.resources[j] ?? group.resources[groupLayout[j]];\n            let gpuResource: GPUSampler | GPUTextureView | GPUExternalTexture | GPUBufferBinding;\n            // TODO make this dynamic..\n\n            if (resource._resourceType === 'uniformGroup')\n            {\n                const uniformGroup = resource as UniformGroup;\n\n                renderer.ubo.updateUniformGroup(uniformGroup as UniformGroup);\n\n                const buffer = uniformGroup.buffer;\n\n                gpuResource = {\n                    buffer: renderer.buffer.getGPUBuffer(buffer),\n                    offset: 0,\n                    size: buffer.descriptor.size,\n                };\n            }\n            else if (resource._resourceType === 'buffer')\n            {\n                const buffer = resource as Buffer;\n\n                gpuResource = {\n                    buffer: renderer.buffer.getGPUBuffer(buffer),\n                    offset: 0,\n                    size: buffer.descriptor.size,\n                };\n            }\n            else if (resource._resourceType === 'bufferResource')\n            {\n                const bufferResource = resource as BufferResource;\n\n                gpuResource = {\n                    buffer: renderer.buffer.getGPUBuffer(bufferResource.buffer),\n                    offset: bufferResource.offset,\n                    size: bufferResource.size,\n                };\n            }\n            else if (resource._resourceType === 'textureSampler')\n            {\n                const sampler = resource as TextureStyle;\n\n                gpuResource = renderer.texture.getGpuSampler(sampler);\n            }\n            else if (resource._resourceType === 'textureSource')\n            {\n                const texture = resource as TextureSource;\n\n                gpuResource = renderer.texture.getGpuSource(texture).createView({\n\n                });\n            }\n\n            entries.push({\n                binding: groupLayout[j],\n                resource: gpuResource,\n            });\n        }\n\n        const layout = renderer.shader.getProgramData(program).bindGroups[groupIndex];\n\n        const gpuBindGroup = device.createBindGroup({\n            layout,\n            entries,\n        });\n\n        this._hash[group._key] = gpuBindGroup;\n\n        return gpuBindGroup;\n    }\n\n    public destroy(): void\n    {\n        for (const key of Object.keys(this._hash))\n        {\n            this._hash[key] = null;\n        }\n\n        this._hash = null;\n\n        (this._renderer as null) = null;\n    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