Function Parse3DSMaxChunk

editor/Read3ds.cpp:401–636

Parses a chunk of a 3dsmax file - this function calls itself

#define skip(f, n) cfseek(f, n, SEEK_CUR)
// Parses a chunk of a 3dsmax file - this function calls itself
void Parse3DSMaxChunk(CFILE *fp, int size) {
  uint16_t id;
  int len;
  int level = Nest_level;
  int i;
  float scale_factor = 0.0254f; // 0.0254 inches/meter

  Nest_level++;

  while (size && !cfeof(fp)) {

    id = cf_ReadShort(fp);
    len = cf_ReadInt(fp);

    if (size < 0) {
      mprintf(0, "%d:chunk error\n", level);
      exit(1);
    }

    switch (id) {
    case ID_UNKNOWN:
      Parse3DSMaxChunk(fp, len - 6);
      break;

    case ID_MAT_NAME: {
      char material_name[PAGENAME_LEN];

      cf_ReadString(material_name, PAGENAME_LEN, fp);

      strcpy(Materials[Num_materials].name, material_name);
      Num_materials++;

      ASSERT(Num_materials < MAX_MATERIALS);
      break;
    }

    case ID_MATERIAL: {
      Parse3DSMaxChunk(fp, len - 6);
      break;
    }

    case ID_MAT_TEXTURE: {
      int i;
      char texture_name[PAGENAME_LEN];

      // Read in Unknown field
      for (i = 0; i < 6; i++)
        cf_ReadByte(fp);

      cf_ReadShort(fp);

      // Read in Unknown field
      for (i = 0; i < 6; i++)
        cf_ReadByte(fp);

      cf_ReadString(texture_name, PAGENAME_LEN, fp);

      // Find the texture that has this bitmap as a name