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scripts/build-kernels.ps1

@@ -0,0 +1,50 @@
+param(
+  [string]$ManifestPath = (Join-Path $PSScriptRoot '..\dist\wasm\manifest.json'),
+  [string]$OutputPath = (Join-Path $PSScriptRoot '..\kernels.js')
+)
+
+$ErrorActionPreference = 'Stop'
+$workspace = (Resolve-Path -LiteralPath (Join-Path $PSScriptRoot '..')).Path
+$output = [System.IO.Path]::GetFullPath($OutputPath)
+if (-not $output.StartsWith($workspace, [System.StringComparison]::OrdinalIgnoreCase)) { throw 'OutputPath must stay inside the workspace.' }
+$manifest = Get-Content -LiteralPath $ManifestPath -Raw -Encoding UTF8 | ConvertFrom-Json
+$values = @{}
+foreach ($payload in $manifest.payloads) {
+  $path = Join-Path (Split-Path $ManifestPath) $payload.file
+  $values[$payload.symbol] = [Convert]::ToBase64String([System.IO.File]::ReadAllBytes($path))
+}
+foreach ($required in @('WASM_SIMD_B64','WASM_SCALAR_B64','DEEP_SIMD_B64','DEEP_SCALAR_B64','BLA_SIMD_B64','BLA_SCALAR_B64','COLOR_SIMD_B64','COLOR_SCALAR_B64')) {
+  if (-not $values.ContainsKey($required)) { throw "Missing payload: $required" }
+}
+$colorDeduplicated = $values.COLOR_SIMD_B64 -eq $values.COLOR_SCALAR_B64
+$lines = @(
+  "'use strict';"
+  '// Generated from dist/wasm/manifest.json. Run scripts/extract-wasm.ps1 before replacing compatibility inputs.'
+)
+if ($colorDeduplicated) { $lines += "const COLOR_B64='$($values.COLOR_SIMD_B64)';" }
+$lines += @(
+  'globalThis.MANDEL_KERNELS=Object.freeze({'
+  "  WASM_SIMD_B64:'$($values.WASM_SIMD_B64)',"
+  "  WASM_SCALAR_B64:'$($values.WASM_SCALAR_B64)',"
+  "  DEEP_SIMD_B64:'$($values.DEEP_SIMD_B64)',"
+  "  DEEP_SCALAR_B64:'$($values.DEEP_SCALAR_B64)',"
+  "  BLA_SIMD_B64:'$($values.BLA_SIMD_B64)',"
+  "  BLA_SCALAR_B64:'$($values.BLA_SCALAR_B64)',"
+)
+if ($colorDeduplicated) {
+  $lines += @('  COLOR_SIMD_B64:COLOR_B64,', '  COLOR_SCALAR_B64:COLOR_B64')
+} else {
+  $lines += @("  COLOR_SIMD_B64:'$($values.COLOR_SIMD_B64)',", "  COLOR_SCALAR_B64:'$($values.COLOR_SCALAR_B64)'")
+}
+$lines += @(
+  '});'
+  'globalThis.MANDEL_KERNEL_META=Object.freeze({'
+)
+for ($index = 0; $index -lt $manifest.payloads.Count; $index++) {
+  $payload = $manifest.payloads[$index]
+  $comma = if ($index -lt $manifest.payloads.Count - 1) { ',' } else { '' }
+  $lines += "  '$($payload.symbol)':'$($payload.sha256)'$comma"
+}
+$lines += '});'
+[System.IO.File]::WriteAllText($output, ($lines -join [Environment]::NewLine) + [Environment]::NewLine, [System.Text.UTF8Encoding]::new($false))
+Write-Output $output