simsite/frontend/node_modules/three-stdlib/loaders/EXRLoader.cjs

"use strict";
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
const THREE = require("three");
const fflate = require("fflate");
const constants = require("../_polyfill/constants.cjs");
const hasColorSpace = constants.version >= 152;
class EXRLoader extends THREE.DataTextureLoader {
  constructor(manager) {
    super(manager);
    this.type = THREE.HalfFloatType;
  }
  parse(buffer) {
    const USHORT_RANGE = 1 << 16;
    const BITMAP_SIZE = USHORT_RANGE >> 3;
    const HUF_ENCBITS = 16;
    const HUF_DECBITS = 14;
    const HUF_ENCSIZE = (1 << HUF_ENCBITS) + 1;
    const HUF_DECSIZE = 1 << HUF_DECBITS;
    const HUF_DECMASK = HUF_DECSIZE - 1;
    const NBITS = 16;
    const A_OFFSET = 1 << NBITS - 1;
    const MOD_MASK = (1 << NBITS) - 1;
    const SHORT_ZEROCODE_RUN = 59;
    const LONG_ZEROCODE_RUN = 63;
    const SHORTEST_LONG_RUN = 2 + LONG_ZEROCODE_RUN - SHORT_ZEROCODE_RUN;
    const ULONG_SIZE = 8;
    const FLOAT32_SIZE = 4;
    const INT32_SIZE = 4;
    const INT16_SIZE = 2;
    const INT8_SIZE = 1;
    const STATIC_HUFFMAN = 0;
    const DEFLATE = 1;
    const UNKNOWN = 0;
    const LOSSY_DCT = 1;
    const RLE = 2;
    const logBase = Math.pow(2.7182818, 2.2);
    function reverseLutFromBitmap(bitmap, lut) {
      var k = 0;
      for (var i = 0; i < USHORT_RANGE; ++i) {
        if (i == 0 || bitmap[i >> 3] & 1 << (i & 7)) {
          lut[k++] = i;
        }
      }
      var n = k - 1;
      while (k < USHORT_RANGE)
        lut[k++] = 0;
      return n;
    }
    function hufClearDecTable(hdec) {
      for (var i = 0; i < HUF_DECSIZE; i++) {
        hdec[i] = {};
        hdec[i].len = 0;
        hdec[i].lit = 0;
        hdec[i].p = null;
      }
    }
    const getBitsReturn = { l: 0, c: 0, lc: 0 };
    function getBits(nBits, c, lc, uInt8Array2, inOffset) {
      while (lc < nBits) {
        c = c << 8 | parseUint8Array(uInt8Array2, inOffset);
        lc += 8;
      }
      lc -= nBits;
      getBitsReturn.l = c >> lc & (1 << nBits) - 1;
      getBitsReturn.c = c;
      getBitsReturn.lc = lc;
    }
    const hufTableBuffer = new Array(59);
    function hufCanonicalCodeTable(hcode) {
      for (var i = 0; i <= 58; ++i)
        hufTableBuffer[i] = 0;
      for (var i = 0; i < HUF_ENCSIZE; ++i)
        hufTableBuffer[hcode[i]] += 1;
      var c = 0;
      for (var i = 58; i > 0; --i) {
        var nc = c + hufTableBuffer[i] >> 1;
        hufTableBuffer[i] = c;
        c = nc;
      }
      for (var i = 0; i < HUF_ENCSIZE; ++i) {
        var l = hcode[i];
        if (l > 0)
          hcode[i] = l | hufTableBuffer[l]++ << 6;
      }
    }
    function hufUnpackEncTable(uInt8Array2, inDataView, inOffset, ni, im, iM, hcode) {
      var p = inOffset;
      var c = 0;
      var lc = 0;
      for (; im <= iM; im++) {
        if (p.value - inOffset.value > ni)
          return false;
        getBits(6, c, lc, uInt8Array2, p);
        var l = getBitsReturn.l;
        c = getBitsReturn.c;
        lc = getBitsReturn.lc;
        hcode[im] = l;
        if (l == LONG_ZEROCODE_RUN) {
          if (p.value - inOffset.value > ni) {
            throw "Something wrong with hufUnpackEncTable";
          }
          getBits(8, c, lc, uInt8Array2, p);
          var zerun = getBitsReturn.l + SHORTEST_LONG_RUN;
          c = getBitsReturn.c;
          lc = getBitsReturn.lc;
          if (im + zerun > iM + 1) {
            throw "Something wrong with hufUnpackEncTable";
          }
          while (zerun--)
            hcode[im++] = 0;
          im--;
        } else if (l >= SHORT_ZEROCODE_RUN) {
          var zerun = l - SHORT_ZEROCODE_RUN + 2;
          if (im + zerun > iM + 1) {
            throw "Something wrong with hufUnpackEncTable";
          }
          while (zerun--)
            hcode[im++] = 0;
          im--;
        }
      }
      hufCanonicalCodeTable(hcode);
    }
    function hufLength(code) {
      return code & 63;
    }
    function hufCode(code) {
      return code >> 6;
    }
    function hufBuildDecTable(hcode, im, iM, hdecod) {
      for (; im <= iM; im++) {
        var c = hufCode(hcode[im]);
        var l = hufLength(hcode[im]);
        if (c >> l) {
          throw "Invalid table entry";
        }
        if (l > HUF_DECBITS) {
          var pl = hdecod[c >> l - HUF_DECBITS];
          if (pl.len) {
            throw "Invalid table entry";
          }
          pl.lit++;
          if (pl.p) {
            var p = pl.p;
            pl.p = new Array(pl.lit);
            for (var i = 0; i < pl.lit - 1; ++i) {
              pl.p[i] = p[i];
            }
          } else {
            pl.p = new Array(1);
          }
          pl.p[pl.lit - 1] = im;
        } else if (l) {
          var plOffset = 0;
          for (var i = 1 << HUF_DECBITS - l; i > 0; i--) {
            var pl = hdecod[(c << HUF_DECBITS - l) + plOffset];
            if (pl.len || pl.p) {
              throw "Invalid table entry";
            }
            pl.len = l;
            pl.lit = im;
            plOffset++;
          }
        }
      }
      return true;
    }
    const getCharReturn = { c: 0, lc: 0 };
    function getChar(c, lc, uInt8Array2, inOffset) {
      c = c << 8 | parseUint8Array(uInt8Array2, inOffset);
      lc += 8;
      getCharReturn.c = c;
      getCharReturn.lc = lc;
    }
    const getCodeReturn = { c: 0, lc: 0 };
    function getCode(po, rlc, c, lc, uInt8Array2, inDataView, inOffset, outBuffer, outBufferOffset, outBufferEndOffset) {
      if (po == rlc) {
        if (lc < 8) {
          getChar(c, lc, uInt8Array2, inOffset);
          c = getCharReturn.c;
          lc = getCharReturn.lc;
        }
        lc -= 8;
        var cs = c >> lc;
        var cs = new Uint8Array([cs])[0];
        if (outBufferOffset.value + cs > outBufferEndOffset) {
          return false;
        }
        var s = outBuffer[outBufferOffset.value - 1];
        while (cs-- > 0) {
          outBuffer[outBufferOffset.value++] = s;
        }
      } else if (outBufferOffset.value < outBufferEndOffset) {
        outBuffer[outBufferOffset.value++] = po;
      } else {
        return false;
      }
      getCodeReturn.c = c;
      getCodeReturn.lc = lc;
    }
    function UInt16(value) {
      return value & 65535;
    }
    function Int16(value) {
      var ref = UInt16(value);
      return ref > 32767 ? ref - 65536 : ref;
    }
    const wdec14Return = { a: 0, b: 0 };
    function wdec14(l, h) {
      var ls = Int16(l);
      var hs = Int16(h);
      var hi = hs;
      var ai = ls + (hi & 1) + (hi >> 1);
      var as = ai;
      var bs = ai - hi;
      wdec14Return.a = as;
      wdec14Return.b = bs;
    }
    function wdec16(l, h) {
      var m = UInt16(l);
      var d = UInt16(h);
      var bb = m - (d >> 1) & MOD_MASK;
      var aa = d + bb - A_OFFSET & MOD_MASK;
      wdec14Return.a = aa;
      wdec14Return.b = bb;
    }
    function wav2Decode(buffer2, j, nx, ox, ny, oy, mx) {
      var w14 = mx < 1 << 14;
      var n = nx > ny ? ny : nx;
      var p = 1;
      var p2;
      while (p <= n)
        p <<= 1;
      p >>= 1;
      p2 = p;
      p >>= 1;
      while (p >= 1) {
        var py = 0;
        var ey = py + oy * (ny - p2);
        var oy1 = oy * p;
        var oy2 = oy * p2;
        var ox1 = ox * p;
        var ox2 = ox * p2;
        var i00, i01, i10, i11;
        for (; py <= ey; py += oy2) {
          var px = py;
          var ex = py + ox * (nx - p2);
          for (; px <= ex; px += ox2) {
            var p01 = px + ox1;
            var p10 = px + oy1;
            var p11 = p10 + ox1;
            if (w14) {
              wdec14(buffer2[px + j], buffer2[p10 + j]);
              i00 = wdec14Return.a;
              i10 = wdec14Return.b;
              wdec14(buffer2[p01 + j], buffer2[p11 + j]);
              i01 = wdec14Return.a;
              i11 = wdec14Return.b;
              wdec14(i00, i01);
              buffer2[px + j] = wdec14Return.a;
              buffer2[p01 + j] = wdec14Return.b;
              wdec14(i10, i11);
              buffer2[p10 + j] = wdec14Return.a;
              buffer2[p11 + j] = wdec14Return.b;
            } else {
              wdec16(buffer2[px + j], buffer2[p10 + j]);
              i00 = wdec14Return.a;
              i10 = wdec14Return.b;
              wdec16(buffer2[p01 + j], buffer2[p11 + j]);
              i01 = wdec14Return.a;
              i11 = wdec14Return.b;
              wdec16(i00, i01);
              buffer2[px + j] = wdec14Return.a;
              buffer2[p01 + j] = wdec14Return.b;
              wdec16(i10, i11);
              buffer2[p10 + j] = wdec14Return.a;
              buffer2[p11 + j] = wdec14Return.b;
            }
          }
          if (nx & p) {
            var p10 = px + oy1;
            if (w14)
              wdec14(buffer2[px + j], buffer2[p10 + j]);
            else
              wdec16(buffer2[px + j], buffer2[p10 + j]);
            i00 = wdec14Return.a;
            buffer2[p10 + j] = wdec14Return.b;
            buffer2[px + j] = i00;
          }
        }
        if (ny & p) {
          var px = py;
          var ex = py + ox * (nx - p2);
          for (; px <= ex; px += ox2) {
            var p01 = px + ox1;
            if (w14)
              wdec14(buffer2[px + j], buffer2[p01 + j]);
            else
              wdec16(buffer2[px + j], buffer2[p01 + j]);
            i00 = wdec14Return.a;
            buffer2[p01 + j] = wdec14Return.b;
            buffer2[px + j] = i00;
          }
        }
        p2 = p;
        p >>= 1;
      }
      return py;
    }
    function hufDecode(encodingTable, decodingTable, uInt8Array2, inDataView, inOffset, ni, rlc, no, outBuffer, outOffset) {
      var c = 0;
      var lc = 0;
      var outBufferEndOffset = no;
      var inOffsetEnd = Math.trunc(inOffset.value + (ni + 7) / 8);
      while (inOffset.value < inOffsetEnd) {
        getChar(c, lc, uInt8Array2, inOffset);
        c = getCharReturn.c;
        lc = getCharReturn.lc;
        while (lc >= HUF_DECBITS) {
          var index = c >> lc - HUF_DECBITS & HUF_DECMASK;
          var pl = decodingTable[index];
          if (pl.len) {
            lc -= pl.len;
            getCode(pl.lit, rlc, c, lc, uInt8Array2, inDataView, inOffset, outBuffer, outOffset, outBufferEndOffset);
            c = getCodeReturn.c;
            lc = getCodeReturn.lc;
          } else {
            if (!pl.p) {
              throw "hufDecode issues";
            }
            var j;
            for (j = 0; j < pl.lit; j++) {
              var l = hufLength(encodingTable[pl.p[j]]);
              while (lc < l && inOffset.value < inOffsetEnd) {
                getChar(c, lc, uInt8Array2, inOffset);
                c = getCharReturn.c;
                lc = getCharReturn.lc;
              }
              if (lc >= l) {
                if (hufCode(encodingTable[pl.p[j]]) == (c >> lc - l & (1 << l) - 1)) {
                  lc -= l;
                  getCode(
                    pl.p[j],
                    rlc,
                    c,
                    lc,
                    uInt8Array2,
                    inDataView,
                    inOffset,
                    outBuffer,
                    outOffset,
                    outBufferEndOffset
                  );
                  c = getCodeReturn.c;
                  lc = getCodeReturn.lc;
                  break;
                }
              }
            }
            if (j == pl.lit) {
              throw "hufDecode issues";
            }
          }
        }
      }
      var i = 8 - ni & 7;
      c >>= i;
      lc -= i;
      while (lc > 0) {
        var pl = decodingTable[c << HUF_DECBITS - lc & HUF_DECMASK];
        if (pl.len) {
          lc -= pl.len;
          getCode(pl.lit, rlc, c, lc, uInt8Array2, inDataView, inOffset, outBuffer, outOffset, outBufferEndOffset);
          c = getCodeReturn.c;
          lc = getCodeReturn.lc;
        } else {
          throw "hufDecode issues";
        }
      }
      return true;
    }
    function hufUncompress(uInt8Array2, inDataView, inOffset, nCompressed, outBuffer, nRaw) {
      var outOffset = { value: 0 };
      var initialInOffset = inOffset.value;
      var im = parseUint32(inDataView, inOffset);
      var iM = parseUint32(inDataView, inOffset);
      inOffset.value += 4;
      var nBits = parseUint32(inDataView, inOffset);
      inOffset.value += 4;
      if (im < 0 || im >= HUF_ENCSIZE || iM < 0 || iM >= HUF_ENCSIZE) {
        throw "Something wrong with HUF_ENCSIZE";
      }
      var freq = new Array(HUF_ENCSIZE);
      var hdec = new Array(HUF_DECSIZE);
      hufClearDecTable(hdec);
      var ni = nCompressed - (inOffset.value - initialInOffset);
      hufUnpackEncTable(uInt8Array2, inDataView, inOffset, ni, im, iM, freq);
      if (nBits > 8 * (nCompressed - (inOffset.value - initialInOffset))) {
        throw "Something wrong with hufUncompress";
      }
      hufBuildDecTable(freq, im, iM, hdec);
      hufDecode(freq, hdec, uInt8Array2, inDataView, inOffset, nBits, iM, nRaw, outBuffer, outOffset);
    }
    function applyLut(lut, data, nData) {
      for (var i = 0; i < nData; ++i) {
        data[i] = lut[data[i]];
      }
    }
    function predictor(source) {
      for (var t = 1; t < source.length; t++) {
        var d = source[t - 1] + source[t] - 128;
        source[t] = d;
      }
    }
    function interleaveScalar(source, out) {
      var t1 = 0;
      var t2 = Math.floor((source.length + 1) / 2);
      var s = 0;
      var stop = source.length - 1;
      while (true) {
        if (s > stop)
          break;
        out[s++] = source[t1++];
        if (s > stop)
          break;
        out[s++] = source[t2++];
      }
    }
    function decodeRunLength(source) {
      var size = source.byteLength;
      var out = new Array();
      var p = 0;
      var reader = new DataView(source);
      while (size > 0) {
        var l = reader.getInt8(p++);
        if (l < 0) {
          var count = -l;
          size -= count + 1;
          for (var i = 0; i < count; i++) {
            out.push(reader.getUint8(p++));
          }
        } else {
          var count = l;
          size -= 2;
          var value = reader.getUint8(p++);
          for (var i = 0; i < count + 1; i++) {
            out.push(value);
          }
        }
      }
      return out;
    }
    function lossyDctDecode(cscSet, rowPtrs, channelData, acBuffer, dcBuffer, outBuffer) {
      var dataView = new DataView(outBuffer.buffer);
      var width = channelData[cscSet.idx[0]].width;
      var height = channelData[cscSet.idx[0]].height;
      var numComp = 3;
      var numFullBlocksX = Math.floor(width / 8);
      var numBlocksX = Math.ceil(width / 8);
      var numBlocksY = Math.ceil(height / 8);
      var leftoverX = width - (numBlocksX - 1) * 8;
      var leftoverY = height - (numBlocksY - 1) * 8;
      var currAcComp = { value: 0 };
      var currDcComp = new Array(numComp);
      var dctData = new Array(numComp);
      var halfZigBlock = new Array(numComp);
      var rowBlock = new Array(numComp);
      var rowOffsets = new Array(numComp);
      for (let comp2 = 0; comp2 < numComp; ++comp2) {
        rowOffsets[comp2] = rowPtrs[cscSet.idx[comp2]];
        currDcComp[comp2] = comp2 < 1 ? 0 : currDcComp[comp2 - 1] + numBlocksX * numBlocksY;
        dctData[comp2] = new Float32Array(64);
        halfZigBlock[comp2] = new Uint16Array(64);
        rowBlock[comp2] = new Uint16Array(numBlocksX * 64);
      }
      for (let blocky = 0; blocky < numBlocksY; ++blocky) {
        var maxY = 8;
        if (blocky == numBlocksY - 1)
          maxY = leftoverY;
        var maxX = 8;
        for (let blockx = 0; blockx < numBlocksX; ++blockx) {
          if (blockx == numBlocksX - 1)
            maxX = leftoverX;
          for (let comp2 = 0; comp2 < numComp; ++comp2) {
            halfZigBlock[comp2].fill(0);
            halfZigBlock[comp2][0] = dcBuffer[currDcComp[comp2]++];
            unRleAC(currAcComp, acBuffer, halfZigBlock[comp2]);
            unZigZag(halfZigBlock[comp2], dctData[comp2]);
            dctInverse(dctData[comp2]);
          }
          {
            csc709Inverse(dctData);
          }
          for (let comp2 = 0; comp2 < numComp; ++comp2) {
            convertToHalf(dctData[comp2], rowBlock[comp2], blockx * 64);
          }
        }
        let offset2 = 0;
        for (let comp2 = 0; comp2 < numComp; ++comp2) {
          const type2 = channelData[cscSet.idx[comp2]].type;
          for (let y2 = 8 * blocky; y2 < 8 * blocky + maxY; ++y2) {
            offset2 = rowOffsets[comp2][y2];
            for (let blockx = 0; blockx < numFullBlocksX; ++blockx) {
              const src = blockx * 64 + (y2 & 7) * 8;
              dataView.setUint16(offset2 + 0 * INT16_SIZE * type2, rowBlock[comp2][src + 0], true);
              dataView.setUint16(offset2 + 1 * INT16_SIZE * type2, rowBlock[comp2][src + 1], true);
              dataView.setUint16(offset2 + 2 * INT16_SIZE * type2, rowBlock[comp2][src + 2], true);
              dataView.setUint16(offset2 + 3 * INT16_SIZE * type2, rowBlock[comp2][src + 3], true);
              dataView.setUint16(offset2 + 4 * INT16_SIZE * type2, rowBlock[comp2][src + 4], true);
              dataView.setUint16(offset2 + 5 * INT16_SIZE * type2, rowBlock[comp2][src + 5], true);
              dataView.setUint16(offset2 + 6 * INT16_SIZE * type2, rowBlock[comp2][src + 6], true);
              dataView.setUint16(offset2 + 7 * INT16_SIZE * type2, rowBlock[comp2][src + 7], true);
              offset2 += 8 * INT16_SIZE * type2;
            }
          }
          if (numFullBlocksX != numBlocksX) {
            for (let y2 = 8 * blocky; y2 < 8 * blocky + maxY; ++y2) {
              const offset3 = rowOffsets[comp2][y2] + 8 * numFullBlocksX * INT16_SIZE * type2;
              const src = numFullBlocksX * 64 + (y2 & 7) * 8;
              for (let x2 = 0; x2 < maxX; ++x2) {
                dataView.setUint16(offset3 + x2 * INT16_SIZE * type2, rowBlock[comp2][src + x2], true);
              }
            }
          }
        }
      }
      var halfRow = new Uint16Array(width);
      var dataView = new DataView(outBuffer.buffer);
      for (var comp = 0; comp < numComp; ++comp) {
        channelData[cscSet.idx[comp]].decoded = true;
        var type = channelData[cscSet.idx[comp]].type;
        if (channelData[comp].type != 2)
          continue;
        for (var y = 0; y < height; ++y) {
          const offset2 = rowOffsets[comp][y];
          for (var x = 0; x < width; ++x) {
            halfRow[x] = dataView.getUint16(offset2 + x * INT16_SIZE * type, true);
          }
          for (var x = 0; x < width; ++x) {
            dataView.setFloat32(offset2 + x * INT16_SIZE * type, decodeFloat16(halfRow[x]), true);
          }
        }
      }
    }
    function unRleAC(currAcComp, acBuffer, halfZigBlock) {
      var acValue;
      var dctComp = 1;
      while (dctComp < 64) {
        acValue = acBuffer[currAcComp.value];
        if (acValue == 65280) {
          dctComp = 64;
        } else if (acValue >> 8 == 255) {
          dctComp += acValue & 255;
        } else {
          halfZigBlock[dctComp] = acValue;
          dctComp++;
        }
        currAcComp.value++;
      }
    }
    function unZigZag(src, dst) {
      dst[0] = decodeFloat16(src[0]);
      dst[1] = decodeFloat16(src[1]);
      dst[2] = decodeFloat16(src[5]);
      dst[3] = decodeFloat16(src[6]);
      dst[4] = decodeFloat16(src[14]);
      dst[5] = decodeFloat16(src[15]);
      dst[6] = decodeFloat16(src[27]);
      dst[7] = decodeFloat16(src[28]);
      dst[8] = decodeFloat16(src[2]);
      dst[9] = decodeFloat16(src[4]);
      dst[10] = decodeFloat16(src[7]);
      dst[11] = decodeFloat16(src[13]);
      dst[12] = decodeFloat16(src[16]);
      dst[13] = decodeFloat16(src[26]);
      dst[14] = decodeFloat16(src[29]);
      dst[15] = decodeFloat16(src[42]);
      dst[16] = decodeFloat16(src[3]);
      dst[17] = decodeFloat16(src[8]);
      dst[18] = decodeFloat16(src[12]);
      dst[19] = decodeFloat16(src[17]);
      dst[20] = decodeFloat16(src[25]);
      dst[21] = decodeFloat16(src[30]);
      dst[22] = decodeFloat16(src[41]);
      dst[23] = decodeFloat16(src[43]);
      dst[24] = decodeFloat16(src[9]);
      dst[25] = decodeFloat16(src[11]);
      dst[26] = decodeFloat16(src[18]);
      dst[27] = decodeFloat16(src[24]);
      dst[28] = decodeFloat16(src[31]);
      dst[29] = decodeFloat16(src[40]);
      dst[30] = decodeFloat16(src[44]);
      dst[31] = decodeFloat16(src[53]);
      dst[32] = decodeFloat16(src[10]);
      dst[33] = decodeFloat16(src[19]);
      dst[34] = decodeFloat16(src[23]);
      dst[35] = decodeFloat16(src[32]);
      dst[36] = decodeFloat16(src[39]);
      dst[37] = decodeFloat16(src[45]);
      dst[38] = decodeFloat16(src[52]);
      dst[39] = decodeFloat16(src[54]);
      dst[40] = decodeFloat16(src[20]);
      dst[41] = decodeFloat16(src[22]);
      dst[42] = decodeFloat16(src[33]);
      dst[43] = decodeFloat16(src[38]);
      dst[44] = decodeFloat16(src[46]);
      dst[45] = decodeFloat16(src[51]);
      dst[46] = decodeFloat16(src[55]);
      dst[47] = decodeFloat16(src[60]);
      dst[48] = decodeFloat16(src[21]);
      dst[49] = decodeFloat16(src[34]);
      dst[50] = decodeFloat16(src[37]);
      dst[51] = decodeFloat16(src[47]);
      dst[52] = decodeFloat16(src[50]);
      dst[53] = decodeFloat16(src[56]);
      dst[54] = decodeFloat16(src[59]);
      dst[55] = decodeFloat16(src[61]);
      dst[56] = decodeFloat16(src[35]);
      dst[57] = decodeFloat16(src[36]);
      dst[58] = decodeFloat16(src[48]);
      dst[59] = decodeFloat16(src[49]);
      dst[60] = decodeFloat16(src[57]);
      dst[61] = decodeFloat16(src[58]);
      dst[62] = decodeFloat16(src[62]);
      dst[63] = decodeFloat16(src[63]);
    }
    function dctInverse(data) {
      const a = 0.5 * Math.cos(3.14159 / 4);
      const b = 0.5 * Math.cos(3.14159 / 16);
      const c = 0.5 * Math.cos(3.14159 / 8);
      const d = 0.5 * Math.cos(3 * 3.14159 / 16);
      const e = 0.5 * Math.cos(5 * 3.14159 / 16);
      const f = 0.5 * Math.cos(3 * 3.14159 / 8);
      const g = 0.5 * Math.cos(7 * 3.14159 / 16);
      var alpha = new Array(4);
      var beta = new Array(4);
      var theta = new Array(4);
      var gamma = new Array(4);
      for (var row = 0; row < 8; ++row) {
        var rowPtr = row * 8;
        alpha[0] = c * data[rowPtr + 2];
        alpha[1] = f * data[rowPtr + 2];
        alpha[2] = c * data[rowPtr + 6];
        alpha[3] = f * data[rowPtr + 6];
        beta[0] = b * data[rowPtr + 1] + d * data[rowPtr + 3] + e * data[rowPtr + 5] + g * data[rowPtr + 7];
        beta[1] = d * data[rowPtr + 1] - g * data[rowPtr + 3] - b * data[rowPtr + 5] - e * data[rowPtr + 7];
        beta[2] = e * data[rowPtr + 1] - b * data[rowPtr + 3] + g * data[rowPtr + 5] + d * data[rowPtr + 7];
        beta[3] = g * data[rowPtr + 1] - e * data[rowPtr + 3] + d * data[rowPtr + 5] - b * data[rowPtr + 7];
        theta[0] = a * (data[rowPtr + 0] + data[rowPtr + 4]);
        theta[3] = a * (data[rowPtr + 0] - data[rowPtr + 4]);
        theta[1] = alpha[0] + alpha[3];
        theta[2] = alpha[1] - alpha[2];
        gamma[0] = theta[0] + theta[1];
        gamma[1] = theta[3] + theta[2];
        gamma[2] = theta[3] - theta[2];
        gamma[3] = theta[0] - theta[1];
        data[rowPtr + 0] = gamma[0] + beta[0];
        data[rowPtr + 1] = gamma[1] + beta[1];
        data[rowPtr + 2] = gamma[2] + beta[2];
        data[rowPtr + 3] = gamma[3] + beta[3];
        data[rowPtr + 4] = gamma[3] - beta[3];
        data[rowPtr + 5] = gamma[2] - beta[2];
        data[rowPtr + 6] = gamma[1] - beta[1];
        data[rowPtr + 7] = gamma[0] - beta[0];
      }
      for (var column = 0; column < 8; ++column) {
        alpha[0] = c * data[16 + column];
        alpha[1] = f * data[16 + column];
        alpha[2] = c * data[48 + column];
        alpha[3] = f * data[48 + column];
        beta[0] = b * data[8 + column] + d * data[24 + column] + e * data[40 + column] + g * data[56 + column];
        beta[1] = d * data[8 + column] - g * data[24 + column] - b * data[40 + column] - e * data[56 + column];
        beta[2] = e * data[8 + column] - b * data[24 + column] + g * data[40 + column] + d * data[56 + column];
        beta[3] = g * data[8 + column] - e * data[24 + column] + d * data[40 + column] - b * data[56 + column];
        theta[0] = a * (data[column] + data[32 + column]);
        theta[3] = a * (data[column] - data[32 + column]);
        theta[1] = alpha[0] + alpha[3];
        theta[2] = alpha[1] - alpha[2];
        gamma[0] = theta[0] + theta[1];
        gamma[1] = theta[3] + theta[2];
        gamma[2] = theta[3] - theta[2];
        gamma[3] = theta[0] - theta[1];
        data[0 + column] = gamma[0] + beta[0];
        data[8 + column] = gamma[1] + beta[1];
        data[16 + column] = gamma[2] + beta[2];
        data[24 + column] = gamma[3] + beta[3];
        data[32 + column] = gamma[3] - beta[3];
        data[40 + column] = gamma[2] - beta[2];
        data[48 + column] = gamma[1] - beta[1];
        data[56 + column] = gamma[0] - beta[0];
      }
    }
    function csc709Inverse(data) {
      for (var i = 0; i < 64; ++i) {
        var y = data[0][i];
        var cb = data[1][i];
        var cr = data[2][i];
        data[0][i] = y + 1.5747 * cr;
        data[1][i] = y - 0.1873 * cb - 0.4682 * cr;
        data[2][i] = y + 1.8556 * cb;
      }
    }
    function convertToHalf(src, dst, idx) {
      for (var i = 0; i < 64; ++i) {
        dst[idx + i] = THREE.DataUtils.toHalfFloat(toLinear(src[i]));
      }
    }
    function toLinear(float) {
      if (float <= 1) {
        return Math.sign(float) * Math.pow(Math.abs(float), 2.2);
      } else {
        return Math.sign(float) * Math.pow(logBase, Math.abs(float) - 1);
      }
    }
    function uncompressRAW(info) {
      return new DataView(info.array.buffer, info.offset.value, info.size);
    }
    function uncompressRLE(info) {
      var compressed = info.viewer.buffer.slice(info.offset.value, info.offset.value + info.size);
      var rawBuffer = new Uint8Array(decodeRunLength(compressed));
      var tmpBuffer = new Uint8Array(rawBuffer.length);
      predictor(rawBuffer);
      interleaveScalar(rawBuffer, tmpBuffer);
      return new DataView(tmpBuffer.buffer);
    }
    function uncompressZIP(info) {
      var compressed = info.array.slice(info.offset.value, info.offset.value + info.size);
      var rawBuffer = fflate.unzlibSync(compressed);
      var tmpBuffer = new Uint8Array(rawBuffer.length);
      predictor(rawBuffer);
      interleaveScalar(rawBuffer, tmpBuffer);
      return new DataView(tmpBuffer.buffer);
    }
    function uncompressPIZ(info) {
      var inDataView = info.viewer;
      var inOffset = { value: info.offset.value };
      var outBuffer = new Uint16Array(info.width * info.scanlineBlockSize * (info.channels * info.type));
      var bitmap = new Uint8Array(BITMAP_SIZE);
      var outBufferEnd = 0;
      var pizChannelData = new Array(info.channels);
      for (var i = 0; i < info.channels; i++) {
        pizChannelData[i] = {};
        pizChannelData[i]["start"] = outBufferEnd;
        pizChannelData[i]["end"] = pizChannelData[i]["start"];
        pizChannelData[i]["nx"] = info.width;
        pizChannelData[i]["ny"] = info.lines;
        pizChannelData[i]["size"] = info.type;
        outBufferEnd += pizChannelData[i].nx * pizChannelData[i].ny * pizChannelData[i].size;
      }
      var minNonZero = parseUint16(inDataView, inOffset);
      var maxNonZero = parseUint16(inDataView, inOffset);
      if (maxNonZero >= BITMAP_SIZE) {
        throw "Something is wrong with PIZ_COMPRESSION BITMAP_SIZE";
      }
      if (minNonZero <= maxNonZero) {
        for (var i = 0; i < maxNonZero - minNonZero + 1; i++) {
          bitmap[i + minNonZero] = parseUint8(inDataView, inOffset);
        }
      }
      var lut = new Uint16Array(USHORT_RANGE);
      var maxValue = reverseLutFromBitmap(bitmap, lut);
      var length = parseUint32(inDataView, inOffset);
      hufUncompress(info.array, inDataView, inOffset, length, outBuffer, outBufferEnd);
      for (var i = 0; i < info.channels; ++i) {
        var cd = pizChannelData[i];
        for (var j = 0; j < pizChannelData[i].size; ++j) {
          wav2Decode(outBuffer, cd.start + j, cd.nx, cd.size, cd.ny, cd.nx * cd.size, maxValue);
        }
      }
      applyLut(lut, outBuffer, outBufferEnd);
      var tmpOffset2 = 0;
      var tmpBuffer = new Uint8Array(outBuffer.buffer.byteLength);
      for (var y = 0; y < info.lines; y++) {
        for (var c = 0; c < info.channels; c++) {
          var cd = pizChannelData[c];
          var n = cd.nx * cd.size;
          var cp = new Uint8Array(outBuffer.buffer, cd.end * INT16_SIZE, n * INT16_SIZE);
          tmpBuffer.set(cp, tmpOffset2);
          tmpOffset2 += n * INT16_SIZE;
          cd.end += n;
        }
      }
      return new DataView(tmpBuffer.buffer);
    }
    function uncompressPXR(info) {
      var compressed = info.array.slice(info.offset.value, info.offset.value + info.size);
      var rawBuffer = fflate.unzlibSync(compressed);
      const sz = info.lines * info.channels * info.width;
      const tmpBuffer = info.type == 1 ? new Uint16Array(sz) : new Uint32Array(sz);
      let tmpBufferEnd = 0;
      let writePtr = 0;
      const ptr = new Array(4);
      for (let y = 0; y < info.lines; y++) {
        for (let c = 0; c < info.channels; c++) {
          let pixel = 0;
          switch (info.type) {
            case 1:
              ptr[0] = tmpBufferEnd;
              ptr[1] = ptr[0] + info.width;
              tmpBufferEnd = ptr[1] + info.width;
              for (let j = 0; j < info.width; ++j) {
                const diff = rawBuffer[ptr[0]++] << 8 | rawBuffer[ptr[1]++];
                pixel += diff;
                tmpBuffer[writePtr] = pixel;
                writePtr++;
              }
              break;
            case 2:
              ptr[0] = tmpBufferEnd;
              ptr[1] = ptr[0] + info.width;
              ptr[2] = ptr[1] + info.width;
              tmpBufferEnd = ptr[2] + info.width;
              for (let j = 0; j < info.width; ++j) {
                const diff = rawBuffer[ptr[0]++] << 24 | rawBuffer[ptr[1]++] << 16 | rawBuffer[ptr[2]++] << 8;
                pixel += diff;
                tmpBuffer[writePtr] = pixel;
                writePtr++;
              }
              break;
          }
        }
      }
      return new DataView(tmpBuffer.buffer);
    }
    function uncompressDWA(info) {
      var inDataView = info.viewer;
      var inOffset = { value: info.offset.value };
      var outBuffer = new Uint8Array(info.width * info.lines * (info.channels * info.type * INT16_SIZE));
      var dwaHeader = {
        version: parseInt64(inDataView, inOffset),
        unknownUncompressedSize: parseInt64(inDataView, inOffset),
        unknownCompressedSize: parseInt64(inDataView, inOffset),
        acCompressedSize: parseInt64(inDataView, inOffset),
        dcCompressedSize: parseInt64(inDataView, inOffset),
        rleCompressedSize: parseInt64(inDataView, inOffset),
        rleUncompressedSize: parseInt64(inDataView, inOffset),
        rleRawSize: parseInt64(inDataView, inOffset),
        totalAcUncompressedCount: parseInt64(inDataView, inOffset),
        totalDcUncompressedCount: parseInt64(inDataView, inOffset),
        acCompression: parseInt64(inDataView, inOffset)
      };
      if (dwaHeader.version < 2) {
        throw "EXRLoader.parse: " + EXRHeader.compression + " version " + dwaHeader.version + " is unsupported";
      }
      var channelRules = new Array();
      var ruleSize = parseUint16(inDataView, inOffset) - INT16_SIZE;
      while (ruleSize > 0) {
        var name = parseNullTerminatedString(inDataView.buffer, inOffset);
        var value = parseUint8(inDataView, inOffset);
        var compression = value >> 2 & 3;
        var csc = (value >> 4) - 1;
        var index = new Int8Array([csc])[0];
        var type = parseUint8(inDataView, inOffset);
        channelRules.push({
          name,
          index,
          type,
          compression
        });
        ruleSize -= name.length + 3;
      }
      var channels = EXRHeader.channels;
      var channelData = new Array(info.channels);
      for (var i = 0; i < info.channels; ++i) {
        var cd = channelData[i] = {};
        var channel = channels[i];
        cd.name = channel.name;
        cd.compression = UNKNOWN;
        cd.decoded = false;
        cd.type = channel.pixelType;
        cd.pLinear = channel.pLinear;
        cd.width = info.width;
        cd.height = info.lines;
      }
      var cscSet = {
        idx: new Array(3)
      };
      for (var offset2 = 0; offset2 < info.channels; ++offset2) {
        var cd = channelData[offset2];
        for (var i = 0; i < channelRules.length; ++i) {
          var rule = channelRules[i];
          if (cd.name == rule.name) {
            cd.compression = rule.compression;
            if (rule.index >= 0) {
              cscSet.idx[rule.index] = offset2;
            }
            cd.offset = offset2;
          }
        }
      }
      if (dwaHeader.acCompressedSize > 0) {
        switch (dwaHeader.acCompression) {
          case STATIC_HUFFMAN:
            var acBuffer = new Uint16Array(dwaHeader.totalAcUncompressedCount);
            hufUncompress(
              info.array,
              inDataView,
              inOffset,
              dwaHeader.acCompressedSize,
              acBuffer,
              dwaHeader.totalAcUncompressedCount
            );
            break;
          case DEFLATE:
            var compressed = info.array.slice(inOffset.value, inOffset.value + dwaHeader.totalAcUncompressedCount);
            var data = fflate.unzlibSync(compressed);
            var acBuffer = new Uint16Array(data.buffer);
            inOffset.value += dwaHeader.totalAcUncompressedCount;
            break;
        }
      }
      if (dwaHeader.dcCompressedSize > 0) {
        var zlibInfo = {
          array: info.array,
          offset: inOffset,
          size: dwaHeader.dcCompressedSize
        };
        var dcBuffer = new Uint16Array(uncompressZIP(zlibInfo).buffer);
        inOffset.value += dwaHeader.dcCompressedSize;
      }
      if (dwaHeader.rleRawSize > 0) {
        var compressed = info.array.slice(inOffset.value, inOffset.value + dwaHeader.rleCompressedSize);
        var data = fflate.unzlibSync(compressed);
        var rleBuffer = decodeRunLength(data.buffer);
        inOffset.value += dwaHeader.rleCompressedSize;
      }
      var outBufferEnd = 0;
      var rowOffsets = new Array(channelData.length);
      for (var i = 0; i < rowOffsets.length; ++i) {
        rowOffsets[i] = new Array();
      }
      for (var y = 0; y < info.lines; ++y) {
        for (var chan = 0; chan < channelData.length; ++chan) {
          rowOffsets[chan].push(outBufferEnd);
          outBufferEnd += channelData[chan].width * info.type * INT16_SIZE;
        }
      }
      lossyDctDecode(cscSet, rowOffsets, channelData, acBuffer, dcBuffer, outBuffer);
      for (var i = 0; i < channelData.length; ++i) {
        var cd = channelData[i];
        if (cd.decoded)
          continue;
        switch (cd.compression) {
          case RLE:
            var row = 0;
            var rleOffset = 0;
            for (var y = 0; y < info.lines; ++y) {
              var rowOffsetBytes = rowOffsets[i][row];
              for (var x = 0; x < cd.width; ++x) {
                for (var byte = 0; byte < INT16_SIZE * cd.type; ++byte) {
                  outBuffer[rowOffsetBytes++] = rleBuffer[rleOffset + byte * cd.width * cd.height];
                }
                rleOffset++;
              }
              row++;
            }
            break;
          case LOSSY_DCT:
          default:
            throw "EXRLoader.parse: unsupported channel compression";
        }
      }
      return new DataView(outBuffer.buffer);
    }
    function parseNullTerminatedString(buffer2, offset2) {
      var uintBuffer = new Uint8Array(buffer2);
      var endOffset = 0;
      while (uintBuffer[offset2.value + endOffset] != 0) {
        endOffset += 1;
      }
      var stringValue = new TextDecoder().decode(uintBuffer.slice(offset2.value, offset2.value + endOffset));
      offset2.value = offset2.value + endOffset + 1;
      return stringValue;
    }
    function parseFixedLengthString(buffer2, offset2, size) {
      var stringValue = new TextDecoder().decode(new Uint8Array(buffer2).slice(offset2.value, offset2.value + size));
      offset2.value = offset2.value + size;
      return stringValue;
    }
    function parseRational(dataView, offset2) {
      var x = parseInt32(dataView, offset2);
      var y = parseUint32(dataView, offset2);
      return [x, y];
    }
    function parseTimecode(dataView, offset2) {
      var x = parseUint32(dataView, offset2);
      var y = parseUint32(dataView, offset2);
      return [x, y];
    }
    function parseInt32(dataView, offset2) {
      var Int32 = dataView.getInt32(offset2.value, true);
      offset2.value = offset2.value + INT32_SIZE;
      return Int32;
    }
    function parseUint32(dataView, offset2) {
      var Uint32 = dataView.getUint32(offset2.value, true);
      offset2.value = offset2.value + INT32_SIZE;
      return Uint32;
    }
    function parseUint8Array(uInt8Array2, offset2) {
      var Uint8 = uInt8Array2[offset2.value];
      offset2.value = offset2.value + INT8_SIZE;
      return Uint8;
    }
    function parseUint8(dataView, offset2) {
      var Uint8 = dataView.getUint8(offset2.value);
      offset2.value = offset2.value + INT8_SIZE;
      return Uint8;
    }
    const parseInt64 = function(dataView, offset2) {
      let int;
      if ("getBigInt64" in DataView.prototype) {
        int = Number(dataView.getBigInt64(offset2.value, true));
      } else {
        int = dataView.getUint32(offset2.value + 4, true) + Number(dataView.getUint32(offset2.value, true) << 32);
      }
      offset2.value += ULONG_SIZE;
      return int;
    };
    function parseFloat32(dataView, offset2) {
      var float = dataView.getFloat32(offset2.value, true);
      offset2.value += FLOAT32_SIZE;
      return float;
    }
    function decodeFloat32(dataView, offset2) {
      return THREE.DataUtils.toHalfFloat(parseFloat32(dataView, offset2));
    }
    function decodeFloat16(binary) {
      var exponent = (binary & 31744) >> 10, fraction = binary & 1023;
      return (binary >> 15 ? -1 : 1) * (exponent ? exponent === 31 ? fraction ? NaN : Infinity : Math.pow(2, exponent - 15) * (1 + fraction / 1024) : 6103515625e-14 * (fraction / 1024));
    }
    function parseUint16(dataView, offset2) {
      var Uint16 = dataView.getUint16(offset2.value, true);
      offset2.value += INT16_SIZE;
      return Uint16;
    }
    function parseFloat16(buffer2, offset2) {
      return decodeFloat16(parseUint16(buffer2, offset2));
    }
    function parseChlist(dataView, buffer2, offset2, size) {
      var startOffset = offset2.value;
      var channels = [];
      while (offset2.value < startOffset + size - 1) {
        var name = parseNullTerminatedString(buffer2, offset2);
        var pixelType = parseInt32(dataView, offset2);
        var pLinear = parseUint8(dataView, offset2);
        offset2.value += 3;
        var xSampling = parseInt32(dataView, offset2);
        var ySampling = parseInt32(dataView, offset2);
        channels.push({
          name,
          pixelType,
          pLinear,
          xSampling,
          ySampling
        });
      }
      offset2.value += 1;
      return channels;
    }
    function parseChromaticities(dataView, offset2) {
      var redX = parseFloat32(dataView, offset2);
      var redY = parseFloat32(dataView, offset2);
      var greenX = parseFloat32(dataView, offset2);
      var greenY = parseFloat32(dataView, offset2);
      var blueX = parseFloat32(dataView, offset2);
      var blueY = parseFloat32(dataView, offset2);
      var whiteX = parseFloat32(dataView, offset2);
      var whiteY = parseFloat32(dataView, offset2);
      return {
        redX,
        redY,
        greenX,
        greenY,
        blueX,
        blueY,
        whiteX,
        whiteY
      };
    }
    function parseCompression(dataView, offset2) {
      var compressionCodes = [
        "NO_COMPRESSION",
        "RLE_COMPRESSION",
        "ZIPS_COMPRESSION",
        "ZIP_COMPRESSION",
        "PIZ_COMPRESSION",
        "PXR24_COMPRESSION",
        "B44_COMPRESSION",
        "B44A_COMPRESSION",
        "DWAA_COMPRESSION",
        "DWAB_COMPRESSION"
      ];
      var compression = parseUint8(dataView, offset2);
      return compressionCodes[compression];
    }
    function parseBox2i(dataView, offset2) {
      var xMin = parseUint32(dataView, offset2);
      var yMin = parseUint32(dataView, offset2);
      var xMax = parseUint32(dataView, offset2);
      var yMax = parseUint32(dataView, offset2);
      return { xMin, yMin, xMax, yMax };
    }
    function parseLineOrder(dataView, offset2) {
      var lineOrders = ["INCREASING_Y"];
      var lineOrder = parseUint8(dataView, offset2);
      return lineOrders[lineOrder];
    }
    function parseV2f(dataView, offset2) {
      var x = parseFloat32(dataView, offset2);
      var y = parseFloat32(dataView, offset2);
      return [x, y];
    }
    function parseV3f(dataView, offset2) {
      var x = parseFloat32(dataView, offset2);
      var y = parseFloat32(dataView, offset2);
      var z = parseFloat32(dataView, offset2);
      return [x, y, z];
    }
    function parseValue(dataView, buffer2, offset2, type, size) {
      if (type === "string" || type === "stringvector" || type === "iccProfile") {
        return parseFixedLengthString(buffer2, offset2, size);
      } else if (type === "chlist") {
        return parseChlist(dataView, buffer2, offset2, size);
      } else if (type === "chromaticities") {
        return parseChromaticities(dataView, offset2);
      } else if (type === "compression") {
        return parseCompression(dataView, offset2);
      } else if (type === "box2i") {
        return parseBox2i(dataView, offset2);
      } else if (type === "lineOrder") {
        return parseLineOrder(dataView, offset2);
      } else if (type === "float") {
        return parseFloat32(dataView, offset2);
      } else if (type === "v2f") {
        return parseV2f(dataView, offset2);
      } else if (type === "v3f") {
        return parseV3f(dataView, offset2);
      } else if (type === "int") {
        return parseInt32(dataView, offset2);
      } else if (type === "rational") {
        return parseRational(dataView, offset2);
      } else if (type === "timecode") {
        return parseTimecode(dataView, offset2);
      } else if (type === "preview") {
        offset2.value += size;
        return "skipped";
      } else {
        offset2.value += size;
        return void 0;
      }
    }
    function parseHeader(dataView, buffer2, offset2) {
      const EXRHeader2 = {};
      if (dataView.getUint32(0, true) != 20000630) {
        throw "THREE.EXRLoader: provided file doesn't appear to be in OpenEXR format.";
      }
      EXRHeader2.version = dataView.getUint8(4);
      const spec = dataView.getUint8(5);
      EXRHeader2.spec = {
        singleTile: !!(spec & 2),
        longName: !!(spec & 4),
        deepFormat: !!(spec & 8),
        multiPart: !!(spec & 16)
      };
      offset2.value = 8;
      var keepReading = true;
      while (keepReading) {
        var attributeName = parseNullTerminatedString(buffer2, offset2);
        if (attributeName == 0) {
          keepReading = false;
        } else {
          var attributeType = parseNullTerminatedString(buffer2, offset2);
          var attributeSize = parseUint32(dataView, offset2);
          var attributeValue = parseValue(dataView, buffer2, offset2, attributeType, attributeSize);
          if (attributeValue === void 0) {
            console.warn(`EXRLoader.parse: skipped unknown header attribute type '${attributeType}'.`);
          } else {
            EXRHeader2[attributeName] = attributeValue;
          }
        }
      }
      if ((spec & ~4) != 0) {
        console.error("EXRHeader:", EXRHeader2);
        throw "THREE.EXRLoader: provided file is currently unsupported.";
      }
      return EXRHeader2;
    }
    function setupDecoder(EXRHeader2, dataView, uInt8Array2, offset2, outputType) {
      const EXRDecoder2 = {
        size: 0,
        viewer: dataView,
        array: uInt8Array2,
        offset: offset2,
        width: EXRHeader2.dataWindow.xMax - EXRHeader2.dataWindow.xMin + 1,
        height: EXRHeader2.dataWindow.yMax - EXRHeader2.dataWindow.yMin + 1,
        channels: EXRHeader2.channels.length,
        bytesPerLine: null,
        lines: null,
        inputSize: null,
        type: EXRHeader2.channels[0].pixelType,
        uncompress: null,
        getter: null,
        format: null,
        [hasColorSpace ? "colorSpace" : "encoding"]: null
      };
      switch (EXRHeader2.compression) {
        case "NO_COMPRESSION":
          EXRDecoder2.lines = 1;
          EXRDecoder2.uncompress = uncompressRAW;
          break;
        case "RLE_COMPRESSION":
          EXRDecoder2.lines = 1;
          EXRDecoder2.uncompress = uncompressRLE;
          break;
        case "ZIPS_COMPRESSION":
          EXRDecoder2.lines = 1;
          EXRDecoder2.uncompress = uncompressZIP;
          break;
        case "ZIP_COMPRESSION":
          EXRDecoder2.lines = 16;
          EXRDecoder2.uncompress = uncompressZIP;
          break;
        case "PIZ_COMPRESSION":
          EXRDecoder2.lines = 32;
          EXRDecoder2.uncompress = uncompressPIZ;
          break;
        case "PXR24_COMPRESSION":
          EXRDecoder2.lines = 16;
          EXRDecoder2.uncompress = uncompressPXR;
          break;
        case "DWAA_COMPRESSION":
          EXRDecoder2.lines = 32;
          EXRDecoder2.uncompress = uncompressDWA;
          break;
        case "DWAB_COMPRESSION":
          EXRDecoder2.lines = 256;
          EXRDecoder2.uncompress = uncompressDWA;
          break;
        default:
          throw "EXRLoader.parse: " + EXRHeader2.compression + " is unsupported";
      }
      EXRDecoder2.scanlineBlockSize = EXRDecoder2.lines;
      if (EXRDecoder2.type == 1) {
        switch (outputType) {
          case THREE.FloatType:
            EXRDecoder2.getter = parseFloat16;
            EXRDecoder2.inputSize = INT16_SIZE;
            break;
          case THREE.HalfFloatType:
            EXRDecoder2.getter = parseUint16;
            EXRDecoder2.inputSize = INT16_SIZE;
            break;
        }
      } else if (EXRDecoder2.type == 2) {
        switch (outputType) {
          case THREE.FloatType:
            EXRDecoder2.getter = parseFloat32;
            EXRDecoder2.inputSize = FLOAT32_SIZE;
            break;
          case THREE.HalfFloatType:
            EXRDecoder2.getter = decodeFloat32;
            EXRDecoder2.inputSize = FLOAT32_SIZE;
        }
      } else {
        throw "EXRLoader.parse: unsupported pixelType " + EXRDecoder2.type + " for " + EXRHeader2.compression + ".";
      }
      EXRDecoder2.blockCount = (EXRHeader2.dataWindow.yMax + 1) / EXRDecoder2.scanlineBlockSize;
      for (var i = 0; i < EXRDecoder2.blockCount; i++)
        parseInt64(dataView, offset2);
      EXRDecoder2.outputChannels = EXRDecoder2.channels == 3 ? 4 : EXRDecoder2.channels;
      const size = EXRDecoder2.width * EXRDecoder2.height * EXRDecoder2.outputChannels;
      switch (outputType) {
        case THREE.FloatType:
          EXRDecoder2.byteArray = new Float32Array(size);
          if (EXRDecoder2.channels < EXRDecoder2.outputChannels)
            EXRDecoder2.byteArray.fill(1, 0, size);
          break;
        case THREE.HalfFloatType:
          EXRDecoder2.byteArray = new Uint16Array(size);
          if (EXRDecoder2.channels < EXRDecoder2.outputChannels)
            EXRDecoder2.byteArray.fill(15360, 0, size);
          break;
        default:
          console.error("THREE.EXRLoader: unsupported type: ", outputType);
          break;
      }
      EXRDecoder2.bytesPerLine = EXRDecoder2.width * EXRDecoder2.inputSize * EXRDecoder2.channels;
      if (EXRDecoder2.outputChannels == 4)
        EXRDecoder2.format = THREE.RGBAFormat;
      else
        EXRDecoder2.format = THREE.RedFormat;
      if (hasColorSpace)
        EXRDecoder2.colorSpace = "srgb-linear";
      else
        EXRDecoder2.encoding = 3e3;
      return EXRDecoder2;
    }
    const bufferDataView = new DataView(buffer);
    const uInt8Array = new Uint8Array(buffer);
    const offset = { value: 0 };
    const EXRHeader = parseHeader(bufferDataView, buffer, offset);
    const EXRDecoder = setupDecoder(EXRHeader, bufferDataView, uInt8Array, offset, this.type);
    const tmpOffset = { value: 0 };
    const channelOffsets = { R: 0, G: 1, B: 2, A: 3, Y: 0 };
    for (let scanlineBlockIdx = 0; scanlineBlockIdx < EXRDecoder.height / EXRDecoder.scanlineBlockSize; scanlineBlockIdx++) {
      const line = parseUint32(bufferDataView, offset);
      EXRDecoder.size = parseUint32(bufferDataView, offset);
      EXRDecoder.lines = line + EXRDecoder.scanlineBlockSize > EXRDecoder.height ? EXRDecoder.height - line : EXRDecoder.scanlineBlockSize;
      const isCompressed = EXRDecoder.size < EXRDecoder.lines * EXRDecoder.bytesPerLine;
      const viewer = isCompressed ? EXRDecoder.uncompress(EXRDecoder) : uncompressRAW(EXRDecoder);
      offset.value += EXRDecoder.size;
      for (let line_y = 0; line_y < EXRDecoder.scanlineBlockSize; line_y++) {
        const true_y = line_y + scanlineBlockIdx * EXRDecoder.scanlineBlockSize;
        if (true_y >= EXRDecoder.height)
          break;
        for (let channelID = 0; channelID < EXRDecoder.channels; channelID++) {
          const cOff = channelOffsets[EXRHeader.channels[channelID].name];
          for (let x = 0; x < EXRDecoder.width; x++) {
            tmpOffset.value = (line_y * (EXRDecoder.channels * EXRDecoder.width) + channelID * EXRDecoder.width + x) * EXRDecoder.inputSize;
            const outIndex = (EXRDecoder.height - 1 - true_y) * (EXRDecoder.width * EXRDecoder.outputChannels) + x * EXRDecoder.outputChannels + cOff;
            EXRDecoder.byteArray[outIndex] = EXRDecoder.getter(viewer, tmpOffset);
          }
        }
      }
    }
    return {
      header: EXRHeader,
      width: EXRDecoder.width,
      height: EXRDecoder.height,
      data: EXRDecoder.byteArray,
      format: EXRDecoder.format,
      [hasColorSpace ? "colorSpace" : "encoding"]: EXRDecoder[hasColorSpace ? "colorSpace" : "encoding"],
      type: this.type
    };
  }
  setDataType(value) {
    this.type = value;
    return this;
  }
  load(url, onLoad, onProgress, onError) {
    function onLoadCallback(texture, texData) {
      if (hasColorSpace)
        texture.colorSpace = texData.colorSpace;
      else
        texture.encoding = texData.encoding;
      texture.minFilter = THREE.LinearFilter;
      texture.magFilter = THREE.LinearFilter;
      texture.generateMipmaps = false;
      texture.flipY = false;
      if (onLoad)
        onLoad(texture, texData);
    }
    return super.load(url, onLoadCallback, onProgress, onError);
  }
}
exports.EXRLoader = EXRLoader;
//# sourceMappingURL=EXRLoader.cjs.map