{"version":3,"sources":["node_modules/@arcgis/core/views/webgl/capabilities.js"],"sourcesContent":["/*\nAll material copyright ESRI, All Rights Reserved, unless otherwise specified.\nSee https://js.arcgis.com/4.28/esri/copyright.txt for details.\n*/\nimport { getContextTypes as t, ContextType as e, createContext as r } from \"./contextUtils.js\";\nlet s, o;\nfunction n(e) {\n  const r = t(e);\n  for (; r.length > 1;) {\n    const t = l(r.shift());\n    if (t.available) return t;\n  }\n  return l(r.shift());\n}\nfunction l(t) {\n  switch (t) {\n    case e.WEBGL1:\n      return a();\n    case e.WEBGL2:\n      return u();\n  }\n}\nfunction a() {\n  return s || (s = E()), s;\n}\nfunction u() {\n  return o || (o = _()), o;\n}\nclass i {\n  constructor() {\n    this.available = !1, this.majorPerformanceCaveat = !1, this.maxTextureSize = 0, this.supportsVertexShaderSamplers = !1, this.supportsHighPrecisionFragment = !1, this.supportsElementIndexUint = !1, this.supportsStandardDerivatives = !1, this.supportsInstancedArrays = !1, this.supportsTextureFloat = !1, this.supportsTextureHalfFloat = !1, this.supportsColorBufferFloat = !1, this.supportsColorBufferFloatBlend = !1, this.supportsColorBufferHalfFloat = !1;\n  }\n}\nclass f extends i {\n  constructor() {\n    super(...arguments), this.type = e.WEBGL1;\n  }\n}\nclass p extends i {\n  constructor() {\n    super(...arguments), this.type = e.WEBGL2, this.supportsElementIndexUint = !0, this.supportsStandardDerivatives = !0, this.supportsInstancedArrays = !0, this.supportsTextureFloat = !0, this.supportsTextureHalfFloat = !0;\n  }\n}\nfunction c(t, s) {\n  if (t === e.WEBGL1 && \"undefined\" == typeof WebGLRenderingContext || t === e.WEBGL2 && \"undefined\" == typeof WebGL2RenderingContext) return null;\n  const o = document.createElement(\"canvas\");\n  if (!o) return null;\n  let n = r(o, t, {\n    failIfMajorPerformanceCaveat: !0\n  });\n  if (null == n && (n = r(o, t), null != n && (s.majorPerformanceCaveat = !0)), null == n) return n;\n  if (t === e.WEBGL1) {\n    const t = n.getParameter(n.VERSION),\n      e = t?.match(/^WebGL\\s+([\\d.]*)/);\n    if (e) {\n      const t = parseFloat(e[1]);\n      s.available = t >= .94;\n    }\n  } else s.available = !0;\n  s.maxTextureSize = n.getParameter(n.MAX_TEXTURE_SIZE), s.supportsVertexShaderSamplers = n.getParameter(n.MAX_VERTEX_TEXTURE_IMAGE_UNITS) > 0;\n  const l = n.getShaderPrecisionFormat(n.FRAGMENT_SHADER, n.HIGH_FLOAT);\n  return l && (s.supportsHighPrecisionFragment = l.precision > 0), n;\n}\nfunction E() {\n  const t = new f(),\n    r = c(e.WEBGL1, t);\n  return null == r || (t.supportsElementIndexUint = null !== r.getExtension(\"OES_element_index_uint\"), t.supportsStandardDerivatives = null !== r.getExtension(\"OES_standard_derivatives\"), t.supportsInstancedArrays = null !== r.getExtension(\"ANGLE_instanced_arrays\"), t.supportsTextureFloat = null !== r.getExtension(\"OES_texture_float\"), t.supportsTextureHalfFloat = null !== r.getExtension(\"OES_texture_half_float\"), t.supportsColorBufferFloat = null !== r.getExtension(\"WEBGL_color_buffer_float\"), t.supportsColorBufferFloatBlend = null !== r.getExtension(\"EXT_float_blend\"), t.supportsColorBufferHalfFloat = null !== r.getExtension(\"EXT_color_buffer_half_float\")), t;\n}\nfunction _() {\n  const t = new p(),\n    r = c(e.WEBGL2, t);\n  return null == r || (t.supportsColorBufferFloat = null !== r.getExtension(\"EXT_color_buffer_float\"), t.supportsColorBufferFloatBlend = null !== r.getExtension(\"EXT_float_blend\"), t.supportsColorBufferHalfFloat = t.supportsColorBufferFloat || null !== r.getExtension(\"EXT_color_buffer_half_float\")), t;\n}\nexport { a as getWebGL1Capabilities, u as getWebGL2Capabilities, n as getWebGLCapabilities, l as getWebGLVersionCapabilities 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