message: Add explicit error for legacy CxV8U8 texture format
diff: @@ -990,6 +990,7 @@ dds_data load_dds_from_file(FILE *f)
  case 114: ret.format = DXGIFormat2ResourceFormat(DXGI_FORMAT_R32_FLOAT); break;
  case 115: ret.format = DXGIFormat2ResourceFormat(DXGI_FORMAT_R32G32_FLOAT); break;
  case 116: ret.format = DXGIFormat2ResourceFormat(DXGI_FORMAT_R32G32B32A32_FLOAT); break;
  + case 117: RDCERR("Legacy CxV8U8 format is unsupported"); return error;
  default: RDCWARN("Unsupported FourCC: %08x", header.ddspf.dwFourCC); return error;
  }
  }
  